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CN111206971A - Combined cycle power plant - Google Patents

Combined cycle power plant Download PDF

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Publication number
CN111206971A
CN111206971A CN201911186726.8A CN201911186726A CN111206971A CN 111206971 A CN111206971 A CN 111206971A CN 201911186726 A CN201911186726 A CN 201911186726A CN 111206971 A CN111206971 A CN 111206971A
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CN
China
Prior art keywords
communicated
heat exchanger
temperature heat
combined cycle
speed increaser
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Pending
Application number
CN201911186726.8A
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Chinese (zh)
Inventor
李鸿瑞
李华玉
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Individual
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Individual
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Publication of CN111206971A publication Critical patent/CN111206971A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/065—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle the combustion taking place in an internal combustion piston engine, e.g. a diesel engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K3/00—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
    • F01K3/18—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
    • F02G5/02—Profiting from waste heat of exhaust gases
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

The invention provides a combined cycle power device, and belongs to the technical field of energy and power. The condenser is provided with a condensate pipeline which is communicated with the evaporator through a circulating pump, the evaporator is also provided with a steam channel which is communicated with the expander, and the expander is also provided with a steam channel which is communicated with the condenser; the dual-energy compressor is provided with a circulating medium channel which is communicated with the expansion speed increaser through a high-temperature heat exchanger, and the expansion speed increaser is provided with a circulating medium channel which is communicated with the dual-energy compressor through an evaporator; the external part of the expansion speed-increasing machine is provided with an air channel communicated with the internal combustion engine, the external part of the expansion speed-increasing machine is also provided with a fuel channel communicated with the internal combustion engine, the internal combustion engine is also provided with a fuel gas channel communicated with the external part through a high-temperature heat exchanger, the internal combustion engine is also provided with a cooling medium channel communicated with the external part, the condenser is also provided with a cooling medium channel communicated with the external part, the evaporator is also provided with a heat medium channel communicated with the external part, the expansion speed-increasing machine is connected with the dual-energy compressor and transmits power, and.

Description

Combined cycle power plant
The technical field is as follows:
the invention belongs to the technical field of energy and power.
Background art:
cold demand, heat demand and power demand are common in human life and production. In the field of power demand technology, the conversion of thermal energy into mechanical energy is an important way to obtain and provide power. In a direct-fired gas-steam combined cycle of high-quality fuel represented by gasoline, diesel oil, and natural gas, high efficiency of converting thermal energy into mechanical energy is the greatest advantage, but there are also problems of complicated apparatus, large manufacturing difficulty, and high manufacturing cost. In such combined cycle power plants, the expander, compressor, and heat exchanger are often essential basic and core components; the compressor and the expander are difficult to manufacture, high in material requirement and high in manufacturing cost, which is not beneficial to popularization and application of the combined cycle power plant. Therefore, it is desirable to replace the power unit with a simple component or to simplify the structure of the core component to reduce the manufacturing difficulty and cost of the combined cycle power unit.
The invention provides a combined cycle power device which adopts the combination of a dual-energy compressor and an expansion speed increaser to respectively replace a main compressor and a main expander on the premise of keeping or effectively improving the thermal efficiency of the combined cycle power device and aiming at reducing the manufacturing difficulty and the manufacturing cost of core components.
The invention content is as follows:
the invention mainly aims to provide a combined cycle power device combining a dual-energy compressor and an expansion speed increaser to respectively replace a main compressor and a main expansion machine, and the specific contents of the invention are explained in sections as follows:
1. the combined cycle power device mainly comprises a compressor, a diffuser pipe, an expander, a spray pipe, a second expander, a circulating pump, a high-temperature heat exchanger, a condenser, an evaporator and an internal combustion engine; the condenser is provided with a condensate pipeline which is communicated with the evaporator through a circulating pump, the evaporator is also provided with a steam channel which is communicated with a second expander, and the second expander is also provided with a steam channel which is communicated with the condenser; the compressor is provided with a circulating medium channel which is communicated with the expander through the high-temperature heat exchanger, and the expander is provided with a circulating medium channel which is communicated with the compressor through the spray pipe, the evaporator and the diffuser pipe; the external part of the engine is provided with an air channel communicated with the internal combustion engine, the external part of the engine is also provided with a fuel channel communicated with the internal combustion engine, the internal combustion engine is also provided with a fuel gas channel communicated with the external part through a high-temperature heat exchanger, the internal combustion engine is also provided with a cooling medium channel communicated with the external part, a condenser is also provided with a cooling medium channel communicated with the external part, an evaporator or a heat medium channel is communicated with the external part, an expander is connected with a compressor and transmits power, and the expander, a second expander and the internal combustion engine are connected with.
2. The combined cycle power device mainly comprises an expander, a circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, an internal combustion engine, a dual-energy compressor and an expansion speed increaser; the condenser is provided with a condensate pipeline which is communicated with the evaporator through a circulating pump, the evaporator is also provided with a steam channel which is communicated with the expander, and the expander is also provided with a steam channel which is communicated with the condenser; the dual-energy compressor is provided with a circulating medium channel which is communicated with the expansion speed increaser through a high-temperature heat exchanger, and the expansion speed increaser is provided with a circulating medium channel which is communicated with the dual-energy compressor through an evaporator; the external part of the expansion speed increaser is provided with an air channel communicated with the internal combustion engine, the external part of the expansion speed increaser is also provided with a fuel channel communicated with the internal combustion engine, the internal combustion engine is also provided with a fuel gas channel communicated with the external part through a high-temperature heat exchanger, the internal combustion engine is also provided with a cooling medium channel communicated with the external part, the condenser is also provided with a cooling medium channel communicated with the external part, the evaporator or the heat medium channel is also communicated with the external part, the expansion speed increaser is connected with the dual-energy compressor and transmits power, and the expansion.
3. The combined cycle power device mainly comprises a compressor, an expander, a circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, an internal combustion engine, a dual-energy compressor and an expansion speed increaser; the condenser is provided with a condensate pipeline which is communicated with the evaporator through a circulating pump, the evaporator is also provided with a steam channel which is communicated with the expander, and the expander is also provided with a steam channel which is communicated with the condenser; the dual-energy compressor is provided with a circulating medium channel which is communicated with the expansion speed increaser through a high-temperature heat exchanger, and the expansion speed increaser is provided with a circulating medium channel which is communicated with the dual-energy compressor through an evaporator; the external part is provided with an air channel communicated with the internal combustion engine, the external part is also provided with a gaseous fuel channel communicated with the internal combustion engine through the compressor, the internal combustion engine is also provided with a fuel gas channel communicated with the external part through the high-temperature heat exchanger, the internal combustion engine is also provided with a cooling medium channel communicated with the external part, the condenser is also provided with a cooling medium channel communicated with the external part, the evaporator or the heating medium channel is also communicated with the external part, the internal combustion engine is connected with the compressor and transmits power, the expansion speed increaser is connected with the dual-energy compressor and transmits power, and the expander, the internal combustion engine and the.
4. A combined cycle power plant, wherein a newly added compressor and a newly added high temperature heat exchanger are added in any combined cycle power plant of items 2 to 3, the dual-energy compressor is communicated with the expansion speed increaser through the high temperature heat exchanger and adjusted to be communicated with the expansion speed increaser through the circulating medium channel, the dual-energy compressor is communicated with the newly added compressor through the high temperature heat exchanger, the newly added compressor is communicated with the expansion speed increaser through the newly added high temperature heat exchanger through the circulating medium channel, the internal combustion engine is communicated with the outside through the high temperature heat exchanger and adjusted to be communicated with the internal combustion engine through the gas channel, and the expansion speed increaser is connected with the newly added compressor and transmits power to form the combined cycle power plant.
5. A combined cycle power plant, wherein a newly added dual-energy compressor and a newly added high-temperature heat exchanger are added in any combined cycle power plant of items 2 to 3, the dual-energy compressor is communicated with an expansion speed increaser through the high-temperature heat exchanger, the dual-energy compressor is adjusted to be communicated with the newly added dual-energy compressor through the high-temperature heat exchanger, the dual-energy compressor is communicated with the expansion speed increaser through the newly added high-temperature heat exchanger, the internal combustion engine is communicated with the outside through the high-temperature heat exchanger, the internal combustion engine is adjusted to be communicated with the outside through the gas channel, the gas channel is communicated with the outside through the newly added high-temperature heat exchanger and the high-temperature heat exchanger, and the expansion speed increaser is connected with the newly added dual-energy compressor and transmits.
6. A combined cycle power plant, wherein a newly added diffuser pipe and a newly added high temperature heat exchanger are added in any combined cycle power plant of items 2 to 3, the communication between a circulation medium channel of a dual-energy compressor and an expansion speed increaser through the high temperature heat exchanger is adjusted to be that the communication between the circulation medium channel of the dual-energy compressor and the newly added diffuser pipe through the high temperature heat exchanger is adjusted to be that the circulation medium channel of the dual-energy compressor is communicated with the expansion speed increaser through the newly added high temperature heat exchanger, the communication between a gas channel of an internal combustion engine and the outside is adjusted to be that the gas channel of the internal combustion engine is communicated with the outside through the newly added high temperature heat exchanger and the high temperature heat exchanger, and a combined cycle.
7. A combined cycle power plant, wherein a newly added expander and a newly added high temperature heat exchanger are added in any combined cycle power plant of items 2 to 3, a dual-energy compressor is communicated with an expansion speed increaser through the high temperature heat exchanger and adjusted to be communicated with the expansion speed increaser through the circulating medium channel, the dual-energy compressor is communicated with the newly added expander through the high temperature heat exchanger, the newly added expander is communicated with the expansion speed increaser through the newly added high temperature heat exchanger through the circulating medium channel, an internal combustion engine is communicated with the outside through the high temperature heat exchanger and adjusted to be communicated with the outside through the gas channel, and the newly added expander is connected with the outside and transmits power to form the combined cycle power plant.
8. A combined cycle power plant, wherein a newly added expansion speed increaser and a newly added high-temperature heat exchanger are added in any combined cycle power plant of items 2 to 3, a double-energy compressor is communicated with the expansion speed increaser through the high-temperature heat exchanger and adjusted to be communicated with the newly added expansion speed increaser through the high-temperature heat exchanger, a double-energy compressor is communicated with the newly added expansion speed increaser through a circulating medium channel, the newly added expansion speed increaser is communicated with the expansion speed increaser through the newly added high-temperature heat exchanger, an internal combustion engine is communicated with the outside through the high-temperature heat exchanger and adjusted to be communicated with the outside through a gas channel, and the newly added expansion speed increaser is connected with the outside and transmits power to form the combined cycle power plant.
9. A combined cycle power plant, wherein a spray pipe and a new high temperature heat exchanger are added in any combined cycle power plant of items 2 to 3, the communication between a circulation medium channel of a dual-energy compressor and an expansion speed increaser through a high temperature heat exchanger is adjusted to be that the communication between the dual-energy compressor and the expansion speed increaser is adjusted to be that the circulation medium channel of the dual-energy compressor is communicated with the spray pipe through the high temperature heat exchanger, the circulation medium channel of the spray pipe is communicated with the expansion speed increaser through the new high temperature heat exchanger, and the communication between a fuel gas channel of an internal combustion engine and the outside is adjusted to be that the fuel gas channel of the internal combustion engine is communicated with the outside through.
10. A combined cycle power device is characterized in that a heat regenerator is added in any combined cycle power device in items 2-3, a circulation medium channel of a dual-energy compressor is communicated with an expansion speed increaser through a high-temperature heat exchanger and adjusted to be communicated with the expansion speed increaser through the heat regenerator and the high-temperature heat exchanger, a circulation medium channel of the expansion speed increaser is communicated with the dual-energy compressor through an evaporator and adjusted to be communicated with the expansion speed increaser through a circulation medium channel of the expansion speed increaser and communicated with the dual-energy compressor through the heat regenerator and an evaporator, and the combined cycle power device is formed.
11. A combined cycle power plant, which is characterized in that a heat regenerator, a newly-added compressor and a newly-added high-temperature heat exchanger are added in any combined cycle power plant of items 2 to 3, a circulation medium channel of a double-energy compressor is communicated with an expansion speed increaser through the high-temperature heat exchanger and adjusted to be communicated with the newly-added compressor through the circulation medium channel of the double-energy compressor, the circulation medium channel of the newly-added compressor is communicated with the expansion speed increaser through the newly-added high-temperature heat exchanger, the circulation medium channel of the expansion speed increaser is communicated with the double-energy compressor through an evaporator to be adjusted to be communicated with the double-energy compressor through the circulation medium channel of the expansion speed increaser and the heat regenerator, a gas channel of an internal combustion engine is communicated with the outside through the high-temperature heat exchanger to be adjusted to be communicated with the gas channel of the internal combustion engine through the, the expansion speed increaser is connected with the newly-increased compressor and transmits power to form a combined cycle power device.
12. A combined cycle power plant, which is characterized in that a heat regenerator, a newly-added dual-energy compressor and a newly-added high-temperature heat exchanger are added in any combined cycle power plant of items 2 to 3, a dual-energy compressor is communicated with an expansion speed increaser through the high-temperature heat exchanger and adjusted into a dual-energy compressor which is communicated with the newly-added dual-energy compressor through the heat regenerator and the high-temperature heat exchanger, a circulating medium channel of the newly-added dual-energy compressor is communicated with the expansion speed increaser through the newly-added high-temperature heat exchanger, the expansion speed increaser is communicated with the dual-energy compressor through an evaporator and adjusted into an expansion speed increaser which is communicated with the dual-energy compressor through the circulating medium channel, a gas channel of an internal combustion engine is communicated with the outside through the heat regenerator and the evaporator, and the internal combustion engine is adjusted into a gas channel of the internal combustion engine which is communicated with the, the expansion speed increaser is connected with the newly-increased dual-energy compressor and transmits power to form a combined cycle power device.
13. A combined cycle power plant, which is characterized in that a heat regenerator, a newly-added diffuser pipe and a newly-added high-temperature heat exchanger are added in any combined cycle power plant of items 2 to 3, a circulation medium channel of a double-energy compressor is communicated with an expansion speed increaser through the high-temperature heat exchanger and adjusted to be communicated with the newly-added diffuser pipe through the circulation medium channel of the double-energy compressor, the newly-added diffuser pipe is further communicated with the expansion speed increaser through the newly-added high-temperature heat exchanger, the circulation medium channel of the expansion speed increaser is communicated with the double-energy compressor through an evaporator to be adjusted to be communicated with the double-energy compressor through the circulation medium channel of the expansion speed increaser through the heat regenerator and the evaporator, a gas channel of an internal combustion engine is communicated with the outside through the high-temperature heat exchanger to be communicated with the internal combustion engine through the gas channel of the newly-, forming a combined cycle power plant.
14. A combined cycle power plant, which is characterized in that a heat regenerator, a new expansion machine and a new high temperature heat exchanger are added in any combined cycle power plant of items 2 to 3, a circulation medium channel of a dual-energy compressor is communicated with an expansion speed increaser through the high temperature heat exchanger and adjusted to be communicated with the new expansion machine through the heat regenerator and the high temperature heat exchanger, a circulation medium channel of the new expansion machine is communicated with the expansion speed increaser through the new high temperature heat exchanger, a circulation medium channel of the expansion speed increaser is communicated with the dual-energy compressor through an evaporator and adjusted to be communicated with the dual-energy compressor through the heat regenerator and the evaporator, a combustion gas channel of the internal combustion engine is communicated with the outside through the high temperature heat exchanger and adjusted to be communicated with the outside through the combustion gas channel of the internal combustion engine through the new high temperature heat exchanger and the high temperature heat exchanger, the new expansion machine is connected with the outside and transmits power to form a combined cycle power device.
15. A combined cycle power plant, which is characterized in that a heat regenerator, a newly-added expansion speed increaser and a newly-added high-temperature heat exchanger are added in any combined cycle power plant of items 2 to 3, a circulation medium channel of a double-energy compressor is communicated with the expansion speed increaser through the high-temperature heat exchanger and adjusted to be communicated with the newly-added expansion speed increaser through the circulation medium channel of the double-energy compressor and the heat regenerator and the high-temperature heat exchanger, a circulation medium channel of the newly-added expansion speed increaser is communicated with the expansion speed increaser through the newly-added high-temperature heat exchanger, a circulation medium channel of the expansion speed increaser is communicated with the double-energy compressor through an evaporator and adjusted to be communicated with the double-energy compressor through the circulation medium channel of the expansion speed increaser and the heat regenerator and the evaporator, a fuel gas channel of an internal combustion engine is communicated with the outside through the high, the newly added expansion speed increaser is connected with the outside and transmits power to form a combined cycle power device.
16. A combined cycle power plant, which is characterized in that a heat regenerator, a spray pipe and a newly-increased high-temperature heat exchanger are added in any combined cycle power plant of items 2 to 3, a dual-energy compressor is provided with a cycle medium channel which is communicated with an expansion speed increaser through the high-temperature heat exchanger, the dual-energy compressor is provided with a cycle medium channel which is communicated with the spray pipe through the heat regenerator and the high-temperature heat exchanger, the spray pipe is provided with a cycle medium channel which is communicated with the expansion speed increaser through the newly-increased high-temperature heat exchanger, the expansion speed increaser is provided with a cycle medium channel which is communicated with the dual-energy compressor through an evaporator, the expansion speed increaser is provided with a cycle medium channel which is communicated with the dual-energy compressor through the heat regenerator and the evaporator, an internal combustion engine is provided with a combustion gas channel which is communicated, forming a combined cycle power plant.
17. A combined cycle power device is characterized in that a mixed heat regenerator and a second circulating pump are added in any combined cycle power device in items 2 to 16, a condenser with a condensate pipeline communicated with an evaporator through the circulating pump is adjusted to be a condenser with a condensate pipeline communicated with the mixed heat regenerator through the circulating pump, an expander is additionally provided with a steam extraction channel communicated with the mixed heat regenerator, and the mixed heat regenerator is further provided with a condensate pipeline communicated with the evaporator through the second circulating pump to form the combined cycle power device.
18. A combined cycle power plant, wherein a preheater is added in any one of the combined cycle power plants described in items 2-16, a condensate pipeline of a condenser is communicated with an evaporator through a circulating pump, and is adjusted to be communicated with the evaporator through the circulating pump and the preheater, and the preheater is also communicated with the outside through a heat medium channel, so as to form the combined cycle power plant.
19. A combined cycle power plant, wherein an intermediate reheater is added to any one of the combined cycle power plants described in items 2 to 16, and the evaporator having a steam passage communicating with an expander and the expander having a steam passage communicating with a condenser are adjusted such that the evaporator having a steam passage communicating with the expander, the expander having an intermediate reheated steam passage communicating with the expander via the intermediate reheater and the expander having a steam passage communicating with the condenser, and the intermediate reheater having a heat medium passage communicating with the outside, thereby forming the combined cycle power plant.
20. A combined cycle power plant, in any of the combined cycle power plants described in items 2-19, a cooling medium channel communicated with the outside of an internal combustion engine is cancelled, a newly added circulating pump is added, a condensate pipeline is additionally arranged on a condenser and is communicated with the internal combustion engine through the newly added circulating pump, and then a steam channel of the internal combustion engine is communicated with an expander to form the combined cycle power plant.
21. A combined cycle power plant, in any of the combined cycle power plants described in items 2-19, a cooling medium channel communicated with the outside of the internal combustion engine is cancelled, a newly added circulating pump and a newly added superheater are added, a condensate pipeline additionally arranged on a condenser is communicated with the internal combustion engine through the newly added circulating pump, then a steam channel of the internal combustion engine is communicated with an expander through the newly added superheater, and a heat medium channel of the newly added superheater is communicated with the outside, so that the combined cycle power plant is formed.
Description of the drawings:
FIG. 1 is a schematic 1 st thermodynamic system diagram of a combined cycle power plant according to the present invention.
FIG. 2 is a schematic thermodynamic system diagram of the 2 nd principle of a combined cycle power plant provided in accordance with the present invention.
FIG. 3 is a schematic thermodynamic system diagram of the 3 rd principle of a combined cycle power plant provided in accordance with the present invention.
FIG. 4 is a diagram of a 4 th principal thermodynamic system of a combined cycle power plant provided in accordance with the present invention.
FIG. 5 is a diagram of a 5 th principal thermodynamic system of a combined cycle power plant provided in accordance with the present invention.
FIG. 6 is a 6 th principal thermodynamic system diagram of a combined cycle power plant provided in accordance with the present invention.
FIG. 7 is a 7 th principle thermodynamic system diagram of a combined cycle power plant provided in accordance with the present invention.
FIG. 8 is a diagram of an 8 th principle thermodynamic system of a combined cycle power plant provided in accordance with the present invention.
FIG. 9 is a diagram of a 9 th principal thermodynamic system of a combined cycle power plant provided in accordance with the present invention.
FIG. 10 is a 10 th principal thermodynamic system diagram of a combined cycle power plant provided in accordance with the present invention.
FIG. 11 is a diagram of a principal 11 thermodynamic system of a combined cycle power plant provided in accordance with the present invention.
FIG. 12 is a 12 th principle thermodynamic system diagram of a combined cycle power plant provided in accordance with the present invention.
FIG. 13 is a 13 th principal thermodynamic system diagram of a combined cycle power plant provided in accordance with the present invention.
FIG. 14 is a 14 th principle thermodynamic system diagram of a combined cycle power plant provided in accordance with the present invention.
FIG. 15 is a diagram of a 15 th principal thermodynamic system of a combined cycle power plant provided in accordance with the present invention and considering the recovery of the cooling load of an internal combustion engine.
In the figure, 1-compressor, 2-diffuser pipe, 3-expander, 4-spray pipe, 5-second expander, 6-circulating pump, 7-high temperature heat exchanger, 8-condenser, 9-evaporator, 10-internal combustion engine, 11-dual energy compressor, 12-expansion speed increaser, 13-heat regenerator, 14-hybrid heat regenerator, 15-second circulating pump, 16-preheater, 17-intermediate reheater; a-newly-increased compressor, B-newly-increased high-temperature heat exchanger, C-newly-increased dual-energy compressor, D-newly-increased diffuser pipe, E-newly-increased expansion machine, F-newly-increased expansion speed-increasing machine, G-newly-increased circulating pump and H-newly-increased superheater.
In order to clearly understand the content and essence of the present invention, the following description is made for the dual energy compressor and the expansion speed increasing machine:
(1) the dual-energy compressor, a device for increasing the pressure of fluid by using the external mechanical energy and the kinetic energy of the fluid, is a combination of the compressor and a diffuser pipe or other devices with the same function.
(2) The expansion speed-increasing machine-under a certain pressure drop, it can implement double functions of pressure-reducing work-making and pressure-reducing speed-increasing, and is a combination body of expansion machine and jet tube or other equipment with identical function.
(3) The second expander 5 in fig. 1 and the expander 3 in fig. 2 to 15 convert the thermal energy of the steam into mechanical energy (pressure reduction work) and also convert the kinetic energy of the steam into mechanical energy (speed reduction work), which is different from the function of a general expander.
The specific implementation mode is as follows:
it is to be noted that, in the description of the structure and the flow, the repetition is not necessary; obvious flow is not described. The invention is described in detail below with reference to the figures and examples.
The combined cycle power plant shown in fig. 1 is implemented as follows:
(1) structurally, the heat exchanger mainly comprises a compressor, a diffuser pipe, an expander, a spray pipe, a second expander, a circulating pump, a high-temperature heat exchanger, a condenser, an evaporator and an internal combustion engine; the condenser 8 is provided with a condensate pipeline which is communicated with the evaporator 9 through the circulating pump 6, the evaporator 9 is also provided with a steam channel which is communicated with the second expander 5, and the second expander 5 is also provided with a steam channel which is communicated with the condenser 8; the compressor 1 is provided with a circulating medium channel which is communicated with the expander 3 through the high-temperature heat exchanger 7, and the expander 3 is provided with a circulating medium channel which is communicated with the compressor 1 through the spray pipe 4, the evaporator 9 and the diffuser pipe 2; an air channel is arranged outside and communicated with an internal combustion engine 10, a fuel channel is arranged outside and communicated with the internal combustion engine 10, a fuel gas channel of the internal combustion engine 10 is communicated with the outside through a high-temperature heat exchanger 7, a cooling medium channel of the internal combustion engine 10 is communicated with the outside, a cooling medium channel of the condenser 8 is communicated with the outside, a heat medium channel of the evaporator 9 is communicated with the outside, the expander 3 is connected with the compressor 1 and transmits power, and the expander 3, the second expander 5 and the internal combustion engine 10 are connected with the outside and outputs power.
(2) In the process, the condensate of the condenser 8 is boosted by the circulating pump 6 and enters the evaporator 9 to absorb the heat load provided by the circulating medium and the heat medium and is vaporized, the saturated or superheated steam released by the evaporator 9 enters the second expansion machine 5 to be decompressed and work, and then enters the condenser 8 to release heat to the cooling medium and is condensed; circulating medium discharged by the compressor 1 flows through the high-temperature heat exchanger 7 and absorbs heat, flows through the expander 3 and performs pressure reduction and work, flows through the spray pipe 4 and performs pressure reduction and speed increase, flows through the evaporator 9 and performs heat release and temperature reduction, flows through the diffuser pipe 2 and performs pressure rise and temperature rise and speed reduction, and then enters the compressor 1 and performs pressure rise and temperature rise; external fuel and air enter the internal combustion engine 10, a series of processes including combustion and expansion are completed in a cylinder of the internal combustion engine 10, fuel gas discharged from the internal combustion engine 10 flows through the high-temperature heat exchanger 7 and releases heat, and external cooling medium flows through the internal combustion engine 10 and discharges outside after absorbing heat; the fuel provides driving heat load through combustion, the heat medium, namely fuel gas after flowing through the high-temperature heat exchanger 7, other heat sources or heat source media capable of providing heat load, provides driving heat load through the evaporator 9, the cooling medium takes away low-temperature heat load through the condenser 8, the expander 3 provides power for the compressor 1, and the expander 3, the second expander 5 and the internal combustion engine 10 jointly provide power for the outside to form a combined cycle power device.
The combined cycle power plant shown in fig. 2 is implemented as follows:
(1) structurally, the system mainly comprises an expander, a circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, an internal combustion engine, a dual-energy compressor and an expansion speed increaser; the condenser 8 is provided with a condensate pipeline which is communicated with the evaporator 9 through the circulating pump 6, the evaporator 9 is also provided with a steam channel which is communicated with the expander 3, and the expander 3 is also provided with a steam channel which is communicated with the condenser 8; the dual-energy compressor 11 is provided with a circulating medium channel which is communicated with the expansion speed increaser 12 through the high-temperature heat exchanger 7, and the expansion speed increaser 12 is provided with a circulating medium channel which is communicated with the dual-energy compressor 11 through the evaporator 9; an air channel is arranged outside and communicated with an internal combustion engine 10, a fuel channel is arranged outside and communicated with the internal combustion engine 10, a fuel gas channel of the internal combustion engine 10 is communicated with the outside through a high-temperature heat exchanger 7, a cooling medium channel of the internal combustion engine 10 is communicated with the outside, a cooling medium channel of the condenser 8 is communicated with the outside, a heat medium channel of the evaporator 9 is communicated with the outside, an expansion speed increaser 12 is connected with a dual-energy compressor 11 and transmits power, and the expansion machine 3, the internal combustion engine 10 and the expansion speed increaser 12 are connected with the outside and output power.
(2) In the process, the condensate of the condenser 8 is boosted by the circulating pump 6 and enters the evaporator 9 to absorb the heat load provided by the circulating medium and the heat medium and is vaporized, the saturated or superheated steam released by the evaporator 9 enters the expander 3 to be decompressed and work, and then enters the condenser 8 to release heat to the cooling medium and is condensed; circulating medium discharged by the dual-energy compressor 11 flows through the high-temperature heat exchanger 7 and absorbs heat, flows through the expansion speed increaser 12 and performs pressure reduction and work doing and pressure reduction and speed increasing, flows through the evaporator 9 to release heat and reduce temperature, and then enters the dual-energy compressor 11 to perform pressure increase, temperature increase and speed reduction; external fuel and air enter the internal combustion engine 10, a series of processes including combustion and expansion are completed in a cylinder of the internal combustion engine 10, fuel gas discharged from the internal combustion engine 10 flows through the high-temperature heat exchanger 7 and releases heat, and external cooling medium flows through the internal combustion engine 10 and then is discharged to the outside after absorbing heat; the fuel provides driving heat load through combustion, the heat medium-fuel gas after flowing through the high-temperature heat exchanger 7, other heat sources or heat source media capable of providing heat load-provide driving heat load through the evaporator 9, the cooling medium takes away the low-temperature heat load through the condenser 8, the expansion speed increasing machine 12 provides power for the dual-energy compressor 11, and the expansion machine 3, the internal combustion engine 10 and the expansion speed increasing machine 12 provide power for the outside together to form a combined cycle power device.
The combined cycle power plant shown in fig. 3 is implemented as follows:
(1) structurally, the system mainly comprises a compressor, an expander, a circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, an internal combustion engine, a dual-energy compressor and an expansion speed increaser; the condenser 8 is provided with a condensate pipeline which is communicated with the evaporator 9 through the circulating pump 6, the evaporator 9 is also provided with a steam channel which is communicated with the expander 3, and the expander 3 is also provided with a steam channel which is communicated with the condenser 8; the dual-energy compressor 11 is provided with a circulating medium channel which is communicated with the expansion speed increaser 12 through the high-temperature heat exchanger 7, and the expansion speed increaser 12 is provided with a circulating medium channel which is communicated with the dual-energy compressor 11 through the evaporator 9; an air channel is arranged outside and communicated with an internal combustion engine 10, a gaseous fuel channel is arranged outside and communicated with the internal combustion engine 10 through a compressor 1, a fuel gas channel of the internal combustion engine 10 is communicated with the outside through a high-temperature heat exchanger 7, a cooling medium channel of the internal combustion engine 10 is communicated with the outside, a cooling medium channel of a condenser 8 is communicated with the outside, a heat medium channel of an evaporator 9 is communicated with the outside, the internal combustion engine 10 is connected with the compressor 1 and transmits power, an expansion speed increaser 12 is connected with a dual-energy compressor 11 and transmits power, and the expander 3, the internal combustion engine 10 and the expansion speed increaser 12 are connected with the outside and.
(2) In the process, the condensate of the condenser 8 is boosted by the circulating pump 6 and enters the evaporator 9 to absorb the heat load provided by the circulating medium and the heat medium and is vaporized, the saturated or superheated steam released by the evaporator 9 enters the expander 3 to be decompressed and work, and then enters the condenser 8 to release heat to the cooling medium and is condensed; circulating medium discharged by the dual-energy compressor 11 flows through the high-temperature heat exchanger 7 and absorbs heat, flows through the expansion speed increaser 12 and performs pressure reduction and work doing and pressure reduction and speed increasing, flows through the evaporator 9 to release heat and reduce temperature, and then enters the dual-energy compressor 11 to perform pressure increase, temperature increase and speed reduction; external air enters the internal combustion engine 10, external gaseous fuel enters the internal combustion engine 10 after being pressurized by the compressor 1, the air and the fuel complete a series of processes including combustion and expansion in a cylinder of the internal combustion engine 10, fuel gas discharged by the internal combustion engine 10 flows through the high-temperature heat exchanger 7 and releases heat, and external cooling medium flows through the internal combustion engine 10 and discharges outside after absorbing heat; the fuel provides driving heat load through combustion, the heat medium, namely fuel gas after flowing through the high-temperature heat exchanger 7, other heat sources or heat source media capable of providing heat load, provides driving heat load through the evaporator 9, the cooling medium takes away low-temperature heat load through the condenser 8, the internal combustion engine 10 provides power for the compressor 1, the expansion speed increaser 12 provides power for the dual-energy compressor 11, and the expansion machine 3, the internal combustion engine 10 and the expansion speed increaser 12 provide power for the outside together to form a combined cycle power device.
The combined cycle power plant shown in fig. 4 is implemented as follows:
(1) structurally, in the combined cycle power plant shown in fig. 2, a newly added compressor and a newly added high-temperature heat exchanger are added, a circulation medium channel of a dual-energy compressor 11 is communicated with an expansion speed increaser 12 through a high-temperature heat exchanger 7, the circulation medium channel of the dual-energy compressor 11 is communicated with a newly added compressor A through the high-temperature heat exchanger 7, the circulation medium channel of the newly added compressor A is communicated with the expansion speed increaser 12 through a newly added high-temperature heat exchanger B, a gas channel of an internal combustion engine 10 is communicated with the outside through the high-temperature heat exchanger 7, the gas channel of the internal combustion engine 10 is communicated with the outside through the newly added high-temperature heat exchanger B and the high-temperature heat exchanger 7, and the expansion speed increaser.
(2) Compared with the circulation flow of the combined cycle power plant shown in FIG. 2, the difference is that the circulating medium discharged by the dual-energy compressor 11 flows through the high-temperature heat exchanger 7 and absorbs heat, and then enters the newly-added compressor A to increase the pressure and the temperature; the circulating medium discharged by the newly-added compressor A flows through the newly-added high-temperature heat exchanger B and absorbs heat, and then enters the expansion speed-increasing machine 12 for reducing pressure, doing work and reducing pressure and increasing speed; the gas discharged by the internal combustion engine 10 passes through the newly-added high-temperature heat exchanger B and the high-temperature heat exchanger 7 to gradually release heat and is discharged to the outside, and the expansion speed increaser 12 provides power for the newly-added compressor A to form a combined cycle power device.
The combined cycle power plant shown in fig. 5 is implemented as follows:
(1) structurally, in the combined cycle power plant shown in fig. 2, a newly added dual-energy compressor and a newly added high-temperature heat exchanger are added, a circulating medium channel of the dual-energy compressor 11 is communicated with the expansion speed increaser 12 through the high-temperature heat exchanger 7, a circulating medium channel of the dual-energy compressor 11 is communicated with the newly added dual-energy compressor C through the high-temperature heat exchanger 7, a circulating medium channel of the newly added dual-energy compressor C is communicated with the expansion speed increaser 12 through the newly added high-temperature heat exchanger B, a fuel gas channel of the internal combustion engine 10 is communicated with the outside through the high-temperature heat exchanger 7, a fuel gas channel of the internal combustion engine 10 is communicated with the outside through the newly added high-temperature heat exchanger B and the high-temperature heat exchanger 7, and the expansion speed incre.
(2) Compared with the circulation flow of the combined cycle power plant shown in FIG. 2, the difference is that the circulation medium discharged by the dual-energy compressor 11 flows through the high-temperature heat exchanger 7 and absorbs heat, and then enters the newly-added dual-energy compressor C to increase the pressure and increase the temperature and reduce the speed; circulating media discharged by the newly-added double-energy compressor C flow through the newly-added high-temperature heat exchanger B and absorb heat, and then enter the expansion speed increasing machine 12 to reduce pressure, do work and reduce pressure and increase speed; the gas discharged by the internal combustion engine 10 flows through the newly-added high-temperature heat exchanger B and the high-temperature heat exchanger 7 to gradually release heat and is discharged to the outside, and the expansion speed increaser 12 provides power for the newly-added dual-energy compressor C to form a combined cycle power device.
The combined cycle power plant shown in fig. 6 is implemented as follows:
(1) structurally, in the combined cycle power plant shown in fig. 2, a newly added diffuser pipe and a newly added high temperature heat exchanger are added, the communication between the circulation medium channel of the dual energy compressor 11 and the expansion speed increaser 12 through the high temperature heat exchanger 7 is adjusted to be that the communication between the circulation medium channel of the dual energy compressor 11 and the newly added diffuser pipe D through the high temperature heat exchanger 7 is adjusted, the communication between the circulation medium channel of the newly added diffuser pipe D and the expansion speed increaser 12 through the newly added high temperature heat exchanger B is adjusted to be that the communication between the gas channel of the internal combustion engine 10 and the outside through the high temperature heat exchanger 7 is adjusted to be that the communication between the gas channel of the internal combustion engine 10 and the outside through.
(2) Compared with the circulation flow of the combined cycle power plant shown in fig. 2, the difference in the flow is that the circulation medium discharged by the dual-energy compressor 11 flows through the high-temperature heat exchanger 7 and absorbs heat, and then enters the newly added diffuser pipe D to increase the pressure, raise the temperature and reduce the speed; circulating media discharged by the newly-added diffuser pipe D flow through the newly-added high-temperature heat exchanger B and absorb heat, and then enter the expansion speed increasing machine 12 to reduce the pressure and do work and reduce the pressure and increase the speed; the fuel gas discharged from the internal combustion engine 10 passes through the newly added high-temperature heat exchanger B and the high-temperature heat exchanger 7 to gradually release heat and is discharged to the outside, thereby forming a combined cycle power device.
The combined cycle power plant shown in fig. 7 is implemented as follows:
(1) structurally, in the combined cycle power plant shown in fig. 2, a new expansion machine and a new high-temperature heat exchanger are added, a circulation medium channel of a dual-energy compressor 11 is communicated with an expansion speed increaser 12 through a high-temperature heat exchanger 7, the circulation medium channel of the dual-energy compressor 11 is communicated with a new expansion machine E through the high-temperature heat exchanger 7, the circulation medium channel of the new expansion machine E is communicated with the expansion speed increaser 12 through a new high-temperature heat exchanger B, a gas channel of an internal combustion engine 10 is communicated with the outside through the high-temperature heat exchanger 7, the gas channel of the internal combustion engine 10 is communicated with the outside through the new high-temperature heat exchanger B and the high-temperature heat exchanger 7, and the new expansion machine E is connected with the outside and transmits.
(2) Compared with the circulation flow of the combined cycle power plant shown in FIG. 2, the difference is that the circulation medium discharged by the dual-energy compressor 11 flows through the high-temperature heat exchanger 7 and absorbs heat, and then enters the new expansion machine E to reduce pressure and do work; the circulating medium discharged by the new expansion machine E flows through the new high-temperature heat exchanger B and absorbs heat, and then enters the expansion speed-increasing machine 12 for reducing pressure, doing work and reducing pressure and increasing speed; the gas discharged by the internal combustion engine 10 flows through the newly-added high-temperature heat exchanger B and the high-temperature heat exchanger 7 to gradually release heat and is discharged outwards, and the work output by the newly-added expansion machine E is output outwards to form a combined cycle power device.
The combined cycle power plant shown in fig. 8 is implemented as follows:
(1) structurally, in the combined cycle power plant shown in fig. 2, a newly added expansion speed increaser and a newly added high-temperature heat exchanger are added, a circulation medium channel of a dual-energy compressor 11 is communicated with an expansion speed increaser 12 through a high-temperature heat exchanger 7, a circulation medium channel of the dual-energy compressor 11 is communicated with a newly added expansion speed increaser F through the high-temperature heat exchanger 7, a circulation medium channel of the newly added expansion speed increaser F is communicated with the expansion speed increaser 12 through a newly added high-temperature heat exchanger B, a gas channel of an internal combustion engine 10 is communicated with the outside through the high-temperature heat exchanger 7, a gas channel of the internal combustion engine 10 is communicated with the outside through the newly added high-temperature heat exchanger B and the high-temperature heat exchanger 7, and the newly added.
(2) Compared with the circulation flow of the combined cycle power plant shown in fig. 2, the difference in the flow is that the circulation medium discharged by the dual-energy compressor 11 flows through the high-temperature heat exchanger 7 and absorbs heat, and then enters the newly-added expansion speed increaser F for pressure reduction and speed increase; circulating medium discharged by the newly-added expansion speed increaser F flows through the newly-added high-temperature heat exchanger B and absorbs heat, and then enters the expansion speed increaser 12 to reduce pressure, do work and increase pressure and speed; the gas discharged by the internal combustion engine 10 flows through the newly added high-temperature heat exchanger B and the high-temperature heat exchanger 7 to gradually release heat and is discharged outwards, and the work output by the newly added expansion speed increaser F is output outwards to form a combined cycle power device.
The combined cycle power plant shown in fig. 9 is implemented as follows:
(1) structurally, in the combined cycle power plant shown in fig. 2, a spray pipe and a new high-temperature heat exchanger are added, a circulation medium channel of the dual-energy compressor 11 is communicated with the expansion speed increaser 12 through the high-temperature heat exchanger 7, the circulation medium channel of the dual-energy compressor 11 is communicated with the spray pipe 4 through the high-temperature heat exchanger 7, the circulation medium channel of the spray pipe 4 is communicated with the expansion speed increaser 12 through the new high-temperature heat exchanger B, and the gas channel of the internal combustion engine 10 is communicated with the outside through the high-temperature heat exchanger 7, so that the gas channel of the internal combustion engine 10 is communicated with the outside through the new high-temperature heat exchanger B and the.
(2) Compared with the circulation flow of the combined cycle power plant shown in FIG. 2, the difference is that the circulation medium discharged by the dual-energy compressor 11 flows through the high-temperature heat exchanger 7 and absorbs heat, and then enters the spray pipe 4 to be depressurized and accelerated; circulating medium discharged by the spray pipe 4 flows through the newly-added high-temperature heat exchanger B and absorbs heat, and then enters the expansion speed increaser 12 for decompression and work doing and decompression and speed increasing; the gas discharged from the internal combustion engine 10 passes through the newly-added high-temperature heat exchanger B and the high-temperature heat exchanger 7 to gradually release heat and is discharged to the outside, so that a combined cycle power device is formed.
The combined cycle power plant shown in fig. 10 is implemented as follows:
(1) structurally, in the combined cycle power plant shown in fig. 2, a heat regenerator is added, a circulation medium channel of the dual-energy compressor 11 is communicated with the expansion speed increasing machine 12 through the high-temperature heat exchanger 7 and adjusted to be communicated with the expansion speed increasing machine 12 through the heat regenerator 13 and the high-temperature heat exchanger 7, a circulation medium channel of the expansion speed increasing machine 12 is communicated with the dual-energy compressor 11 through the evaporator 9 and adjusted to be communicated with the expansion speed increasing machine 12 through the circulation medium channel of the expansion speed increasing machine 12 and communicated with the dual-energy compressor 11 through the heat regenerator 13 and the evaporator 9.
(2) Compared with the circulation flow of the combined cycle power plant shown in fig. 2, the difference in the flow is that the circulation medium discharged from the dual-energy compressor 11 flows through the heat regenerator 13 and the high-temperature heat exchanger 7 and absorbs heat gradually, flows through the expansion speed increaser 12 and performs pressure reduction and work as well as pressure reduction and speed increase, flows through the heat regenerator 13 and the evaporator 9 and releases heat gradually, and then enters the dual-energy compressor 11 to perform pressure increase and temperature increase as well as speed reduction, thereby forming the combined cycle power plant.
The combined cycle power plant shown in FIG. 11 is implemented as follows:
(1) structurally, in the combined cycle power plant shown in fig. 2, a heat regenerator, a newly added diffuser pipe and a newly added high temperature heat exchanger are added, a circulation medium channel of a dual energy compressor 11 is communicated with an expansion speed increaser 12 through a high temperature heat exchanger 7, the circulation medium channel of the dual energy compressor 11 is communicated with a newly added diffuser pipe D through a heat regenerator 13 and the high temperature heat exchanger 7, the circulation medium channel of the newly added diffuser pipe D is communicated with the expansion speed increaser 12 through a newly added high temperature heat exchanger B, a circulation medium channel of the expansion speed increaser 12 is communicated with the dual energy compressor 11 through an evaporator 9, the circulation medium channel of the expansion speed increaser 12 is communicated with the dual energy compressor 11 through the heat regenerator 13 and the evaporator 9, the internal combustion engine 10 is adjusted to be communicated with the outside through the high-temperature heat exchanger 7, and the internal combustion engine 10 is adjusted to be communicated with the outside through the newly-added high-temperature heat exchanger B and the high-temperature heat exchanger 7.
(2) Compared with the circulation flow of the combined cycle power plant shown in fig. 2, the difference is that the circulation medium discharged by the dual-energy compressor 11 flows through the heat regenerator 13 and the high-temperature heat exchanger 7 and gradually absorbs heat, and then enters the newly-increased pressure-expanding pipe D to increase the pressure, raise the temperature and reduce the speed; circulating media discharged by the newly-added diffuser pipe D flow through the newly-added high-temperature heat exchanger B and absorb heat, flow through the expansion speed increaser 12 to reduce pressure, do work and reduce pressure and increase speed, flow through the heat regenerator 13 and the evaporator 9 to gradually release heat, and then enter the dual-energy compressor 11 to increase pressure, raise temperature and reduce speed; the fuel gas discharged from the internal combustion engine 10 passes through the newly added high-temperature heat exchanger B and the high-temperature heat exchanger 7 to gradually release heat and is discharged to the outside, thereby forming a combined cycle power device.
The combined cycle power plant shown in fig. 12 is implemented as follows:
(1) structurally, in the combined cycle power plant shown in fig. 2, a mixed heat regenerator and a second circulating pump are added, a condensate pipeline of a condenser 8 is communicated with an evaporator 9 through the circulating pump 6, the condenser 8 is adjusted to be communicated with the mixed heat regenerator 14 through the circulating pump 6, a steam extraction channel is additionally arranged on the expansion machine 3 and is communicated with the mixed heat regenerator 14, and the mixed heat regenerator 14 is communicated with the evaporator 9 through a condensate pipeline of the second circulating pump 15.
(2) Compared with the circulation flow of the combined cycle power plant shown in fig. 2, the difference in the flow is that the condensate of the condenser 8 flows through the circulation pump 6 and enters the hybrid heat regenerator 14 after being boosted, the steam entering the expander 3 is decompressed and does work to a certain pressure and then is divided into two paths, the first path continues to be decompressed and does work and then enters the condenser 8, the second path enters the hybrid heat regenerator 14 through the steam extraction channel to be mixed with the condensate for heat release and condensation, and the condensate of the hybrid heat regenerator 14 enters the evaporator 9 after being boosted by the second circulation pump 15 to form the combined cycle power plant.
The combined cycle power plant shown in fig. 13 is implemented as follows:
in the combined cycle power plant shown in fig. 2, a preheater is added, and a condensate pipeline of the condenser 8 is communicated with the evaporator 9 through the circulating pump 6, so that the condenser 8 is adjusted to be communicated with the evaporator 9 through the circulating pump 6 and the preheater 16, and the preheater 16 is also communicated with the outside through a heat medium channel; the condensate of the condenser 8 enters the evaporator 9 after being boosted by the circulating pump 6 and heated by the preheater 16, thus forming a combined cycle power plant.
The combined cycle power plant shown in fig. 14 is implemented as follows:
in the combined cycle power plant shown in fig. 2, an intermediate reheater is added, the evaporator 9 having a steam passage communicating with the expander 3 and the expander 3 having a steam passage communicating with the condenser 8 are adjusted such that the evaporator 9 having a steam passage communicating with the expander 3, the expander 3 having an intermediate reheated steam passage communicating with the expander 3 via the intermediate reheater 17 and the expander 3 having a steam passage communicating with the condenser 8, and the intermediate reheater 17 having a heat medium passage communicating with the outside; when the steam entering the expansion machine 3 reduces the pressure and works to a certain pressure, the steam is completely led out and flows through the intermediate reheater 17 through the intermediate reheated steam channel to absorb heat and raise the temperature, then enters the expansion machine 3 to continue reducing the pressure and work, and then enters the condenser 8 to release heat and condense to form a combined cycle power device.
The combined cycle power plant shown in fig. 15 is implemented as follows:
(1) structurally, in the combined cycle power plant shown in fig. 2, a cooling medium channel of the internal combustion engine 10 communicated with the outside is cancelled, a newly added circulating pump and a newly added superheater are added, a condensate pipeline is additionally arranged on the condenser 8, the condensate pipeline is communicated with the internal combustion engine 10 through the newly added circulating pump G, then a steam channel of the internal combustion engine 10 is communicated with the expander 3 through the newly added superheater H, and a heat medium channel of the newly added superheater H is communicated with the outside.
(2) Compared with the circulation flow of the combined cycle power plant shown in fig. 2, the difference in the flow is that one path of condensate of the condenser 8 is boosted by the newly added circulation pump G and then supplied to the internal combustion engine 10 as circulating coolant, is vaporized by heat absorption, enters the expansion machine 3 after being heated by the newly added superheater H by heat absorption and then is depressurized and does work, and the heat medium, namely fuel gas discharged by the internal combustion engine 10 or other heat source media, provides heat load to the newly added superheater H to form the combined cycle power plant.
The effect that the technology of the invention can realize-the combined cycle power device provided by the invention has the following effects and advantages:
(1) the dual-energy compressor replaces a main compressor, and the manufacturing difficulty and the cost of the combined cycle power device are greatly reduced.
(2) The expansion speed increaser replaces a main expansion machine, and the manufacturing difficulty and the cost of the combined cycle power device are greatly reduced.
(3) The diffuser pipe or the dual-energy compressor replaces a common compressor, and the manufacturing difficulty and the manufacturing cost of the combined cycle power device are effectively reduced.
(4) The jet pipe or the expansion speed increaser replaces a common expansion machine, so that the manufacturing difficulty and the cost of the combined cycle power device are effectively reduced.
(5) The simple components replace complex components, and the heat power change efficiency of the combined cycle power device is kept or improved.
(6) The complex parts are replaced by simple parts and simplified, which is beneficial to improving the safety and service life of the dynamic parts.
(7) A plurality of specific technical schemes are provided, and the device can be used for coping with a plurality of different actual conditions and has a wider application range.
(8) The combined cycle power plant technology is expanded, the types of the combined cycle power plant are enriched, the conversion of heat energy into mechanical energy is favorably realized, and the application range of the combined cycle power plant is expanded.

Claims (21)

1. The combined cycle power device mainly comprises a compressor, a diffuser pipe, an expander, a spray pipe, a second expander, a circulating pump, a high-temperature heat exchanger, a condenser, an evaporator and an internal combustion engine; the condenser (8) is provided with a condensate pipeline which is communicated with the evaporator (9) through a circulating pump (6), the evaporator (9) is also provided with a steam channel which is communicated with the second expander (5), and the second expander (5) is also provided with a steam channel which is communicated with the condenser (8); the compressor (1) is provided with a circulating medium channel which is communicated with the expander (3) through the high-temperature heat exchanger (7), and the expander (3) is provided with a circulating medium channel which is communicated with the compressor (1) through the spray pipe (4), the evaporator (9) and the diffuser pipe (2); an air channel is arranged outside and communicated with an internal combustion engine (10), a fuel channel is arranged outside and communicated with the internal combustion engine (10), a fuel gas channel is arranged in the internal combustion engine (10) and communicated with the outside through a high-temperature heat exchanger (7), a cooling medium channel is arranged in the internal combustion engine (10) and communicated with the outside, a cooling medium channel is arranged in the condenser (8) and communicated with the outside, an evaporator (9) or a heat medium channel is communicated with the outside, an expander (3) is connected with a compressor (1) and transmits power, and the expander (3), a second expander (5) and the internal combustion engine (10) are connected with the outside and outputs power, so that a combined cycle power device is formed.
2. The combined cycle power device mainly comprises an expander, a circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, an internal combustion engine, a dual-energy compressor and an expansion speed increaser; the condenser (8) is provided with a condensate pipeline which is communicated with the evaporator (9) through a circulating pump (6), the evaporator (9) is also provided with a steam channel which is communicated with the expander (3), and the expander (3) is also provided with a steam channel which is communicated with the condenser (8); the dual-energy compressor (11) is provided with a circulating medium channel which is communicated with the expansion speed increaser (12) through the high-temperature heat exchanger (7), and the expansion speed increaser (12) is provided with a circulating medium channel which is communicated with the dual-energy compressor (11) through the evaporator (9); an air channel is arranged outside and communicated with an internal combustion engine (10), a fuel channel is arranged outside and communicated with the outside through a high-temperature heat exchanger (7), a cooling medium channel is arranged in the internal combustion engine (10) and communicated with the outside, a cooling medium channel is arranged in a condenser (8) and communicated with the outside, an evaporator (9) or a heat medium channel is communicated with the outside, an expansion speed increaser (12) is connected with a dual-energy compressor (11) and transmits power, and an expansion machine (3), the internal combustion engine (10) and the expansion speed increaser (12) are connected with the outside and output power to form a combined cycle power device.
3. The combined cycle power device mainly comprises a compressor, an expander, a circulating pump, a high-temperature heat exchanger, a condenser, an evaporator, an internal combustion engine, a dual-energy compressor and an expansion speed increaser; the condenser (8) is provided with a condensate pipeline which is communicated with the evaporator (9) through a circulating pump (6), the evaporator (9) is also provided with a steam channel which is communicated with the expander (3), and the expander (3) is also provided with a steam channel which is communicated with the condenser (8); the dual-energy compressor (11) is provided with a circulating medium channel which is communicated with the expansion speed increaser (12) through the high-temperature heat exchanger (7), and the expansion speed increaser (12) is provided with a circulating medium channel which is communicated with the dual-energy compressor (11) through the evaporator (9); an air channel is arranged outside and communicated with an internal combustion engine (10), a gaseous fuel channel is arranged outside and communicated with the internal combustion engine (10) through a compressor (1), the internal combustion engine (10) is also provided with a fuel gas channel and communicated with the outside through a high-temperature heat exchanger (7), the internal combustion engine (10) is also provided with a cooling medium channel and communicated with the outside, a condenser (8) is also provided with a cooling medium channel and communicated with the outside, an evaporator (9) or a heat medium channel is communicated with the outside, the internal combustion engine (10) is connected with the compressor (1) and transmits power, an expansion speed increaser (12) is connected with a dual-energy compressor (11) and transmits power, and an expander (3), the internal combustion engine (10) and the expansion speed increaser (12) are connected with the.
4. A combined cycle power plant, which is characterized in that a newly-added compressor and a newly-added high-temperature heat exchanger are added in any combined cycle power plant of claims 2 to 3, a circulation medium channel of a dual-energy compressor (11) is communicated with an expansion speed increaser (12) through a high-temperature heat exchanger (7) and is adjusted to be communicated with a newly-added compressor (A) through the high-temperature heat exchanger (7) and the circulation medium channel of the dual-energy compressor (11), the circulation medium channel of the newly-added compressor (A) is communicated with the expansion speed increaser (12) through a newly-added high-temperature heat exchanger (B), a gas channel of an internal combustion engine (10) is communicated with the outside through the high-temperature heat exchanger (7) and is adjusted to be communicated with the outside through the newly-added high-temperature heat exchanger (B) and the high-temperature heat exchanger (7), the expansion speed increaser (12) is connected with the newly, forming a combined cycle power plant.
5. A combined cycle power plant, which is characterized in that in any combined cycle power plant of claims 2-3, a newly added dual-energy compressor and a newly added high-temperature heat exchanger are added, a dual-energy compressor (11) is communicated with an expansion speed increaser (12) through a high-temperature heat exchanger (7) and adjusted into a dual-energy compressor (11) is communicated with a newly added dual-energy compressor (C) through a high-temperature heat exchanger (7) and adjusted into a dual-energy compressor (11) through a circulating medium channel, the newly added dual-energy compressor (C) is further communicated with the expansion speed increaser (12) through a newly added high-temperature heat exchanger (B), an internal combustion engine (10) is communicated with the outside through a high-temperature heat exchanger (7) and adjusted into an internal combustion engine (10) is provided with a gas channel which is communicated with the outside through the newly added high-temperature heat exchanger (B) and the high-temperature heat exchanger (7), and the expansion speed increaser, forming a combined cycle power plant.
6. A combined cycle power device is characterized in that a newly added diffuser pipe and a newly added high-temperature heat exchanger are added in any combined cycle power device of claims 2-3, a circulating medium channel of a dual-energy compressor (11) is communicated with an expansion speed increaser (12) through a high-temperature heat exchanger (7) and adjusted to be communicated with a newly added diffuser pipe (D) through the high-temperature heat exchanger (7) by the circulating medium channel of the dual-energy compressor (11), the newly added diffuser pipe (D) is communicated with the expansion speed increaser (12) through a newly added high-temperature heat exchanger (B), a gas channel of an internal combustion engine (10) is communicated with the outside through the high-temperature heat exchanger (7) and adjusted to be communicated with the outside through the newly added high-temperature heat exchanger (B) and the high-temperature heat exchanger (7) by the internal combustion engine (10), and the combined cycle power device is.
7. A combined cycle power plant, in any combined cycle power plant of claim 2-3, a new expansion machine and a new increased high temperature heat exchanger are added, a circulation medium channel of a dual energy compressor (11) is communicated with an expansion speed increaser (12) through a high temperature heat exchanger (7) and adjusted to be communicated with a new expansion machine (E) through the high temperature heat exchanger (7) and the circulation medium channel of the dual energy compressor (11), a circulation medium channel of the new expansion machine (E) is communicated with the expansion speed increaser (12) through a new increased high temperature heat exchanger (B), a gas channel of an internal combustion engine (10) is communicated with the outside through the high temperature heat exchanger (7) and adjusted to be communicated with the outside through the gas channel of the internal combustion engine (10) through the new increased high temperature heat exchanger (B) and the high temperature heat exchanger (7), the new expansion machine (E) is connected with the outside and transmits power, forming a combined cycle power plant.
8. A combined cycle power plant, which is characterized in that in any combined cycle power plant of claims 2-3, a newly added expansion speed increaser and a newly added high temperature heat exchanger are added, a circulation medium channel of a dual-energy compressor (11) is communicated with the expansion speed increaser (12) through the high temperature heat exchanger (7) and adjusted to be communicated with a newly added expansion speed increaser (F) through the high temperature heat exchanger (7) and the circulation medium channel of the newly added expansion speed increaser (F) is communicated with the expansion speed increaser (12) through the newly added high temperature heat exchanger (B), a gas channel of an internal combustion engine (10) is communicated with the outside through the high temperature heat exchanger (7) and adjusted to be communicated with the outside through the gas channel of the internal combustion engine (10) through the newly added high temperature heat exchanger (B) and the high temperature heat exchanger (7), the newly added expansion speed increaser (F) is connected with the outside and transmits power, forming a combined cycle power plant.
9. A combined cycle power device is characterized in that a spray pipe and a newly-increased high-temperature heat exchanger are added in any combined cycle power device of claims 2-3, a circulation medium channel of a dual-energy compressor (11) is communicated with an expansion speed increaser (12) through a high-temperature heat exchanger (7) and adjusted to be communicated with the spray pipe (4) through the high-temperature heat exchanger (7) and the circulation medium channel of the dual-energy compressor (11), the circulation medium channel of the spray pipe (4) is communicated with the expansion speed increaser (12) through the newly-increased high-temperature heat exchanger (B), a gas channel of an internal combustion engine (10) is communicated with the outside through the high-temperature heat exchanger (7) and adjusted to be communicated with the outside through the newly-increased high-temperature heat exchanger (B) and the high-temperature heat exchanger (7), and the combined cycle power device.
10. A combined cycle power device is characterized in that a heat regenerator is added in any combined cycle power device of claims 2-3, a circulation medium channel of a dual-energy compressor (11) is communicated with an expansion speed increaser (12) through a high-temperature heat exchanger (7) and adjusted to be communicated with the expansion speed increaser (12) through a heat regenerator (13) and the high-temperature heat exchanger (7), a circulation medium channel of the expansion speed increaser (12) is communicated with the dual-energy compressor (11) through an evaporator (9) and adjusted to be communicated with the expansion speed increaser (12) through a circulation medium channel of the heat regenerator (13) and the evaporator (9) and communicated with the dual-energy compressor (11), and the combined cycle power device is formed.
11. A combined cycle power plant, which is characterized in that a heat regenerator, a newly-added compressor and a newly-added high-temperature heat exchanger are added in any combined cycle power plant of claims 2 to 3, a circulation medium channel of the double-energy compressor (11) is communicated with an expansion speed increaser (12) through the high-temperature heat exchanger (7) and is adjusted to be communicated with the newly-added compressor (A) through the heat regenerator (13) and the high-temperature heat exchanger (7), a circulation medium channel of the newly-added compressor (A) is communicated with the expansion speed increaser (12) through the newly-added high-temperature heat exchanger (B), a circulation medium channel of the expansion speed increaser (12) is communicated with the double-energy compressor (11) through an evaporator (9) and is adjusted to be communicated with the expansion speed increaser (12) through the heat regenerator (13) and the evaporator (9) and is communicated with the double-energy compressor (11), the internal combustion engine (10) is adjusted to be communicated with the outside through a gas channel of the high-temperature heat exchanger (7) so that the internal combustion engine (10) is communicated with the outside through a newly-increased high-temperature heat exchanger (B) and the high-temperature heat exchanger (7), and the expansion speed increaser (12) is connected with the newly-increased compressor (A) and transmits power to form a combined cycle power device.
12. A combined cycle power plant, which is characterized in that a heat regenerator, a newly added dual-energy compressor and a newly added high-temperature heat exchanger are added in any combined cycle power plant of claims 2 to 3, a dual-energy compressor (11) is communicated with an expansion speed increaser (12) through a high-temperature heat exchanger (7) and adjusted to be that the dual-energy compressor (11) is communicated with a newly added dual-energy compressor (C) through a circulating medium channel and the heat regenerator (13) and the high-temperature heat exchanger (7), the newly added dual-energy compressor (C) is further communicated with the expansion speed increaser (12) through a newly added high-temperature heat exchanger (B), the expansion speed increaser (12) is communicated with the dual-energy compressor (11) through an evaporator (9) and adjusted to be that the expansion speed increaser (12) is provided with a circulating medium channel and is communicated with the dual-energy compressor (11) through the heat regenerator (13) and the evaporator (9), the internal combustion engine (10) is communicated with the outside through the high-temperature heat exchanger (7) to adjust that the internal combustion engine (10) is communicated with the outside through the newly-increased high-temperature heat exchanger (B) and the high-temperature heat exchanger (7), and the expansion speed increaser (12) is connected with the newly-increased dual-energy compressor (C) and transmits power to form a combined cycle power device.
13. A combined cycle power plant, which is characterized in that in any combined cycle power plant of claims 2-3, a heat regenerator, a newly added diffuser pipe and a newly added high temperature heat exchanger are added, a circulation medium channel of a dual energy compressor (11) is communicated with an expansion speed increaser (12) through a high temperature heat exchanger (7) and is adjusted to be that the dual energy compressor (11) is communicated with a circulation medium channel of a newly added diffuser pipe (D) through the heat regenerator (13) and the high temperature heat exchanger (7), the newly added diffuser pipe (D) is further communicated with the expansion speed increaser (12) through a newly added high temperature heat exchanger (B), the expansion speed increaser (12) is communicated with the dual energy compressor (11) through an evaporator (9) and is adjusted to be that the expansion speed increaser (12) is communicated with the dual energy compressor (11) through the heat regenerator (13) and the evaporator (9), the internal combustion engine (10) is adjusted to be communicated with the outside through the high-temperature heat exchanger (7) by the gas channel, and the internal combustion engine (10) is communicated with the outside through the newly-added high-temperature heat exchanger (B) and the high-temperature heat exchanger (7), so that the combined cycle power device is formed.
14. A combined cycle power plant, which is characterized in that a heat regenerator, a new expansion machine and a new high temperature heat exchanger are added in any combined cycle power plant of claims 2 to 3, a circulation medium channel of a dual-energy compressor (11) is communicated with an expansion speed increaser (12) through a high temperature heat exchanger (7) to adjust that the dual-energy compressor (11) is provided with a circulation medium channel which is communicated with the new expansion machine (E) through the heat regenerator (13) and the high temperature heat exchanger (7), the new expansion machine (E) is further provided with a circulation medium channel which is communicated with the expansion speed increaser (12) through a new high temperature heat exchanger (B), the expansion speed increaser (12) is provided with a circulation medium channel which is communicated with the dual-energy compressor (11) through an evaporator (9) to adjust that the expansion speed increaser (12) is provided with a circulation medium channel which is communicated with the dual-energy compressor (11) through the heat regenerator (13) and the evaporator (9, the internal combustion engine (10) is adjusted to be communicated with the outside through the high-temperature heat exchanger (7) by a gas channel, the internal combustion engine (10) is communicated with the outside through the newly-increased high-temperature heat exchanger (B) and the high-temperature heat exchanger (7), and the newly-increased expansion machine (E) is connected with the outside and transmits power to form a combined cycle power device.
15. A combined cycle power plant, which is characterized in that a heat regenerator, a newly added expansion speed increaser and a newly added high-temperature heat exchanger are added in any combined cycle power plant of claims 2 to 3, a circulation medium channel of a double-energy compressor (11) is communicated with the expansion speed increaser (12) through the high-temperature heat exchanger (7) and is adjusted to be communicated with the newly added expansion speed increaser (F) through the heat regenerator (13) and the high-temperature heat exchanger (7), a circulation medium channel of the newly added expansion speed increaser (F) is communicated with the expansion speed increaser (12) through the newly added high-temperature heat exchanger (B), a circulation medium channel of the expansion speed increaser (12) is communicated with the double-energy compressor (11) through an evaporator (9) and is adjusted to be communicated with the expansion speed increaser (12) through the heat regenerator (13) and the evaporator (9) and is communicated with the double-energy compressor (11), the internal combustion engine (10) is adjusted to be communicated with the outside through a high-temperature heat exchanger (7) by a gas channel, the internal combustion engine (10) is communicated with the outside through a newly-increased high-temperature heat exchanger (B) and the high-temperature heat exchanger (7), and a newly-increased expansion speed increaser (F) is connected with the outside and transmits power to form a combined cycle power device.
16. A combined cycle power plant, which is characterized in that a heat regenerator, a spray pipe and a newly-increased high-temperature heat exchanger are added in any combined cycle power plant of claims 2 to 3, a circulation medium channel of a dual-energy compressor (11) is communicated with an expansion speed increaser (12) through a high-temperature heat exchanger (7) to adjust that the dual-energy compressor (11) is provided with a circulation medium channel which is communicated with the spray pipe (4) through the heat regenerator (13) and the high-temperature heat exchanger (7), the spray pipe (4) is further provided with a circulation medium channel which is communicated with the expansion speed increaser (12) through the newly-increased high-temperature heat exchanger (B), the expansion speed increaser (12) is provided with a circulation medium channel which is communicated with the dual-energy compressor (11) through an evaporator (9) to adjust that the expansion speed increaser (12) is provided with a circulation medium channel which is communicated with the dual-energy compressor (11) through the heat regenerator (13) and the evaporator (9), and an internal combustion gas channel of the internal combustion The air channel is communicated with the outside through the newly-added high-temperature heat exchanger (B) and the high-temperature heat exchanger (7) to form a combined cycle power device.
17. A combined cycle power device is characterized in that a mixed heat regenerator and a second circulating pump are added in any combined cycle power device of claims 2 to 16, a condenser (8) is provided with a condensate pipeline which is communicated with an evaporator (9) through the circulating pump (6) and is adjusted to be that the condenser (8) is provided with a condensate pipeline which is communicated with the mixed heat regenerator (14) through the circulating pump (6), an expander (3) is additionally provided with a steam extraction channel which is communicated with the mixed heat regenerator (14), and the mixed heat regenerator (14) is further provided with a condensate pipeline which is communicated with the evaporator (9) through the second circulating pump (15), so that the combined cycle power device is formed.
18. A combined cycle power plant, which is characterized in that a preheater is added in any combined cycle power plant of claims 2 to 16, a condenser (8) is provided with a condensate pipeline which is communicated with an evaporator (9) through a circulating pump (6) and is adjusted to be that the condenser (8) is provided with a condensate pipeline which is communicated with the evaporator (9) through the circulating pump (6) and the preheater (16), and the preheater (16) is also provided with a heat medium channel which is communicated with the outside to form the combined cycle power plant.
19. A combined cycle power plant, wherein an intermediate reheater is added to any one of the combined cycle power plants as claimed in claims 2 to 16, the evaporator (9) having a steam passage communicating with the expander (3) and the expander (3) having a steam passage communicating with the condenser (8) is adjusted so that the evaporator (9) having a steam passage communicating with the expander (3), the expander (3) having an intermediate reheated steam passage communicating with the expander (3) through the intermediate reheater (17) and the expander (3) having a steam passage communicating with the condenser (8), and the intermediate reheater (17) and the heat medium passage communicating with the outside, thereby forming a combined cycle power plant.
20. A combined cycle power device is characterized in that in any combined cycle power device of claims 2-19, a cooling medium channel communicated with the outside of an internal combustion engine (10) is eliminated, a newly-added circulating pump is added, a condensate pipeline is additionally arranged on a condenser (8) and is communicated with the internal combustion engine (10) through the newly-added circulating pump (G), and then a steam channel of the internal combustion engine (10) is communicated with an expander (3) to form the combined cycle power device.
21. A combined cycle power device is characterized in that in any combined cycle power device of claims 2-19, a cooling medium channel communicated with the outside of an internal combustion engine (10) is eliminated, a newly-added circulating pump and a newly-added superheater are added, a condensate pipeline additionally arranged on a condenser (8) is communicated with the internal combustion engine (10) through the newly-added circulating pump (G), then a steam channel of the internal combustion engine (10) is communicated with an expander (3) through the newly-added superheater (H), and a heat medium channel of the newly-added superheater (H) is communicated with the outside to form the combined cycle power device.
CN201911186726.8A 2018-11-18 2019-11-15 Combined cycle power plant Pending CN111206971A (en)

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CN201811439442 2018-11-18
CN2018114394420 2018-11-18

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108119195A (en) * 2016-12-20 2018-06-05 李华玉 Combined circulation power apparatus
CN108119196A (en) * 2017-12-07 2018-06-05 李华玉 Combined circulation power apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108119195A (en) * 2016-12-20 2018-06-05 李华玉 Combined circulation power apparatus
CN108119196A (en) * 2017-12-07 2018-06-05 李华玉 Combined circulation power apparatus

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