CN105484816B - Combustion and steam association system and its progress control method - Google Patents
Combustion and steam association system and its progress control method Download PDFInfo
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- CN105484816B CN105484816B CN201511034899.XA CN201511034899A CN105484816B CN 105484816 B CN105484816 B CN 105484816B CN 201511034899 A CN201511034899 A CN 201511034899A CN 105484816 B CN105484816 B CN 105484816B
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000000446 fuel Substances 0.000 claims abstract description 79
- 239000007789 gas Substances 0.000 claims abstract description 47
- 239000002918 waste heat Substances 0.000 claims abstract description 24
- 239000012530 fluid Substances 0.000 claims abstract description 20
- 239000000498 cooling water Substances 0.000 claims abstract description 18
- 238000010521 absorption reaction Methods 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000000605 extraction Methods 0.000 claims abstract description 13
- 230000008676 import Effects 0.000 claims description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000003032 molecular docking Methods 0.000 claims description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 5
- 239000003546 flue gas Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 239000000567 combustion gas Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/08—Heating air supply before combustion, e.g. by exhaust gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/22—Fuel supply systems
- F02C7/224—Heating fuel before feeding to the burner
Landscapes
- 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 present invention relates to a kind of combustion and steam association system and its progress control method is provided, combustion and steam association system includes：Gas turbine, steam circuit, the steam circuit are provided with waste heat boiler, steam turbine and condenser, and the steam turbine is provided with extraction opening；Absorption heat pump, the absorption heat pump has the first heat exchanger channels, the second heat exchanger channels and the driving heat source passage being engaged；Preheating heat exchanger, the preheating heat exchanger has the 3rd heat exchanger channels and the 4th heat exchanger channels being engaged；Part vapor in steam turbine enters the driving force in driving heat source passage as absorption heat pump from extraction opening, cycle fluid is warmed in the second heat exchanger channels, and cooling water cools in the first heat exchanger channels；Cycle fluid heating after heating flows through the air or fuel of the 4th heat exchanger channels, makes air or the fuel temperature rise into gas turbine.
Description
Technical field
The invention belongs to energy field, and in particular to a kind of combustion and steam association system and its progress control method.
Background technology
The operating condition of combustion and steam association system is adjusted in real time according to its load condition, due to the change of load,
Combustion and steam association system tends not to generate electricity at full capacity, and combustion and steam association system is relatively inefficient during underload.
Steam cycle efficiency main path is improved at present for the steam inlet condition of increase steam turbine to improve steam turbine
Mechanical efficiency, however, selection higher pressure and higher temperature steam turbine and waste heat boiler, at the beginning of having increased considerably power plant
Investment, payoff period is longer, either new-built unit or old Transformation of Unit, is all unfavorable for promoting.
The content of the invention
Based on this, the invention reside in the defect for overcoming prior art, there is provided a kind of combustion and steam association system and its operation
Control method, the thermal efficiency is high, and equipment manufacturing cost is low.
Its technical scheme is as follows：
A kind of combustion and steam association system, including：Gas turbine；Set in steam circuit, the steam circuit
Have a surplus heat boiler, steam turbine and condenser, the steam turbine is provided with extraction opening, the waste heat boiler is provided with taking out
The mouth of a river；Absorption heat pump, the absorption heat pump has the first heat exchanger channels being engaged, the second heat exchanger channels and driving
Heat source passages；Preheating heat exchanger, the preheating heat exchanger has the 3rd heat exchanger channels and the 4th heat exchanger channels being engaged；
Fuel heater, the fuel heater has the 5th heat exchanger channels being engaged；Wherein, the import of the driving heat source passage
Docked with the extraction opening, the outlet of the driving heat source passage is docked with the steam inlet of the condenser；Described first changes
The import of the passage of heat is docked with the cooling water outlet of the condenser, outlet and low-temperature receiver or the cooling of first heat exchanger channels
Tower is docked；The import of second heat exchanger channels is docked with the outlet of the 3rd heat exchanger channels, second heat exchanger channels
Docked with the import of the 3rd heat exchanger channels outlet；The import of 4th heat exchanger channels is docked with air-source or fuels sources,
Docked with the air intlet of the gas turbine or fuel inlet the outlet of 4th heat exchanger channels；5th heat exchanger channels
Import docked with the pump mouth, the outlet of the 5th heat exchanger channels is docked with the feed-water inlet of the waste heat boiler；Institute
State pump mouth between the import of the 5th heat exchanger channels be provided with flow control valve；Or, the 5th heat exchanger channels are exported to
Flow control valve is provided between the feed-water inlet of the waste heat boiler.
In one of the embodiments, between the outlet and the import of the 3rd heat exchanger channels of second heat exchanger channels
Provided with flow control valve；Or, provided with stream between the import of second heat exchanger channels and the outlet of the 3rd heat exchanger channels
Control valve.
In one of the embodiments, the air intlet of the gas turbine is provided with temperature sensor；Or/and, the combustion
The fuel inlet of gas-turbine is provided with temperature sensor.
In one of the embodiments, the fuel heater also has the 6th heat exchanger channels being engaged, the described 6th
The import of heat exchanger channels is docked with the outlet of the 4th heat exchanger channels, outlet and the combustion gas wheel of the 6th heat exchanger channels
The fuel inlet docking of machine.
In one of the embodiments, the fuel temperature of the outlet of the 6th heat exchanger channels is 175 DEG C to 185 DEG C.
In one of the embodiments, the fuel temperature or air themperature of the outlet of the 4th heat exchanger channels are 100 DEG C
To 120 DEG C.
In one of the embodiments, the cooling water temperature of the outlet of first heat exchanger channels is 25 DEG C to 35 DEG C.
A kind of combustion and steam association system progress control method, including：Fuel and air, which enter to burn in gas turbine, to be done
Work(, the flue gas after acting enters in waste heat boiler, and the feedwater to waste heat boiler is heated, and feedwater is heated to be vapor entrance
Steam turbine does work, and the vapor after acting is cooled to feedwater by condenser and is back to waste heat boiler；The cooling of condenser
Water enters the first heat exchanger channels, part of the cycle fluid in the second heat exchanger channels, the 3rd heat exchanger channels interior circulation, steam turbine
Vapor enters the driving force in driving heat source passage as absorption heat pump from extraction opening, makes cycle fluid logical in the second heat exchange
It is warmed in road, and cooling water cools in the first heat exchanger channels；It is logical that cycle fluid heating after heating flows through the 4th heat exchange
The air or fuel in road, make air or the fuel temperature rise into gas turbine.
In one of the embodiments, the temperature of air at the gas turbine air intlet detected according to temperature sensor
Or at fuel inlet fuel temperature, adjust flow control valve, control following in the second heat exchanger channels and the 3rd heat exchanger channels
The flow of ring working medium, so as to control the temperature of the fuel or air into gas turbine.
The beneficial effects of the present invention are：
Part vapor in steam turbine enters the driving in driving heat source passage as absorption heat pump from extraction opening
Power, makes cycle fluid be warmed in the second heat exchanger channels, and cooling water cools in the first heat exchanger channels；Following after heating
Ring working medium heats the air or fuel for flowing through the 4th heat exchanger channels, makes air or the fuel temperature rise into gas turbine.Rise
Air and fuel after temperature do work into gas turbine combustion, and the air and fuel combustion after heating are more stable, and combustion gas wheel
The delivery temperature of machine is higher, now increases the feedwater flow of steam circuit, makes its higher temperature with discharge of gas turbine
Flue gas heat exchange obtain bigger quantity of steam, the steam of greater flow is done work into steam turbine.Steam now remains former
Come steam pressure and temperature waits steam operational factor constant substantially, and these more steam enter steam turbine acting and obtain bigger
Exert oneself, improve the efficiency of whole combustion and steam association system.
The cooling water of condenser is discharged after being cooled, and reduces temperature at discharging condensate, using the low-grade energy of cooling water, improves combustion
The thermal efficiency of gas steam circulation, and low temperature draining is friendly to environmental ecology, reduces the influence to environment.
On the other hand, part vapor, cycle fluid is extracted from steam turbine in the second heat exchanger channels and the 3rd heat exchange to lead to
Road interior circulation, the steam operational factor without changing steam circuit, it is not necessary to use the more preferable material of heat resisting and pressure resisting,
Avoid greatly improving the cost of whole system while improving the thermal efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the combustion and steam association system of the embodiment of the present invention one.
Description of reference numerals：
100th, gas turbine, 210, waste heat boiler, 220, steam turbine, 230, condenser, 300, absorption heat pump, 310,
Preheating heat exchanger, 320, flow control valve, 330, warm-up cycle pump, 410, fuel heater, 420, flow control valve.
Embodiment
The present invention is described in further detail below, but the implementation of the present invention is not limited to this.
As shown in figure 1, combustion and steam association system, including：Gas turbine 100, steam circuit, absorption heat pump
300 and preheating heat exchanger 310.Wherein, steam circuit is provided with waste heat boiler 210, steam turbine 220 and condensing
Device 230, steam turbine 220 is provided with extraction opening；Absorption heat pump 300 has the first heat exchanger channels being engaged, the second heat exchange
Passage and driving heat source passage；Preheating heat exchanger 310 has the 3rd heat exchanger channels and the 4th heat exchanger channels being engaged；
The import of driving heat source passage is docked with extraction opening, and the outlet of driving heat source passage is docked with the steam inlet of condenser 230；The
The import of one heat exchanger channels is docked with the cooling water outlet of condenser 230, outlet and low-temperature receiver or the cooling of the first heat exchanger channels
Tower is docked；The import of second heat exchanger channels is docked with the outlet of the 3rd heat exchanger channels, and the outlet of the second heat exchanger channels is changed with the 3rd
The import docking of the passage of heat；Provided with described pre- between the import of second heat exchanger channels and the outlet of the 3rd heat exchanger channels
Provided with described pre- between hot recycle pump 330, or the outlet and the import of the 3rd heat exchanger channels of second heat exchanger channels
Hot recycle pump 330；The import of 4th heat exchanger channels is docked with air-source or fuels sources, outlet and the combustion gas wheel of the 4th heat exchanger channels
The air intlet of machine 100 or fuel inlet docking.
Part vapor in steam turbine 220 enters in driving heat source passage from extraction opening is used as absorption heat pump 300
Driving force, cycle fluid is warmed in the second heat exchanger channels, and cooling water cools in the first heat exchanger channels；Heating
Cycle fluid heating afterwards flows through the air or fuel of the 4th heat exchanger channels, makes the air or fuel temperature into gas turbine 100
Degree rise.Air and fuel after heating enter the work by combustion of gas turbine 100, and the air and fuel combustion after heating are more steady
It is fixed, and the delivery temperature of gas turbine 100 is higher, now increases the feedwater flow of steam circuit, makes itself and combustion gas wheel
The flue gas heat exchange for the higher temperature that machine 100 is discharged obtains bigger quantity of steam, the steam of greater flow is entered steam turbine 220
Acting.Steam now maintains original steam pressure and temperature to wait steam operational factor constant substantially, and these more steam enter
Enter the acting of steam turbine 220 and obtain the bigger efficiency exerted oneself, improve whole combustion and steam association system.Condenser 230 it is cold
But discharged after water is cooled, reduce temperature at discharging condensate, using the low-grade energy of cooling water, improve the thermal effect of combustion and steam circulation
Rate, and low temperature draining is friendly to environmental ecology, reduces the influence to environment temperature.Pass through absorption heat pump 300, it is possible to use
The low grade heat energy for the cooling water that condenser 230 is discharged, greatly improves the thermal efficiency.On the other hand, part water is extracted from steam engine
Steam, cycle fluid are transported in the second heat exchanger channels and the 3rd heat exchanger channels interior circulation, the steam without changing steam circuit
Row parameter, it is not necessary to use the more preferable material of heat resisting and pressure resisting, avoids greatly improving whole system while the thermal efficiency is improved
Cost.
Flow control valve 320 is provided between the outlet and the import of the 3rd heat exchanger channels of second heat exchanger channels.It is not limited to this
Embodiment or, between the import of the second heat exchanger channels and the outlet of the 3rd heat exchanger channels be provided with flow control valve 320.
The flow of cycle fluid in the second heat exchanger channels and the 3rd heat exchanger channels can be adjusted by adjusting flow control valve 320, so that
Regulation fuel or the heat that is obtained in preheating heat exchanger 310 of air, so control to enter the fuel temperature of gas turbine 100 or
Air themperature.
The air intlet of gas turbine 100 is provided with temperature sensor, or the fuel inlet of gas turbine 100 is provided with temperature
Sensor.The fuel temperature or air themperature of the outlet of 4th heat exchanger channels are 100 DEG C to 120 DEG C.First heat exchanger channels go out
The cooling water temperature of mouth is 25 DEG C to 35 DEG C.Combustion and steam association system also has controller, is arranged at the sky of gas turbine 100
Temperature sensor, the flow control valve 320 of gas import or fuel inlet are electrically connected with controller, and controller is passed according to temperature
The fuel temperature or air themperature for the entrance gas turbine 100 that sensor is detected, adjust flow control valve 320, and control second is changed
The flow of the passage of heat and the 3rd heat exchanger channels interior circulation working medium, so as to control the fuel temperature or sky entered in gas turbine 100
Temperature degree.
Fuel temperature or air themperature into gas turbine 100 are influenceed by environment temperature, with the change of environment temperature
And change, it regard the fuel temperature or air themperature that enter gas turbine 100 as control signal：When temperature sensor detects combustion
When the air themperature of gas-turbine 100 or fuel temperature are more than setting value, it is logical that controller control flow control valve 320 reduces the second heat exchange
The flow in road and the 3rd heat exchanger channels interior circulation working medium, that is, reduce the cycle fluid flow exchanged heat with air or combustion gas, make
The heat that fuel or air are obtained reduces, so as to reduce fuel or air into the temperature of gas turbine 100；Conversely, working as temperature
When the air themperature or fuel temperature that sensor is detected are less than setting value, controller control flow control valve 320 increase second
The flow of heat exchanger channels and the 3rd heat exchanger channels interior circulation working medium, i.e., the circulation industrial mass flow that increase is exchanged heat with fuel or air
Amount, the heat increase for obtaining fuel or air, so as to improve fuel or air into the temperature of gas turbine 100；It is so anti-
Polyphony section, it is final to cause the fuel temperature or air themperature that enter gas turbine 100 to reach that theoretical calculation combines combustion and steam
System effectiveness highest set temperature value.
The import of 4th heat exchanger channels is docked with fuels sources, and 310 pairs of fuel for entering gas turbine 100 of preheating heat exchanger enter
Row heating.
Combustion and steam association system also includes fuel heater 410, and fuel heater 410 has the be engaged the 5th to change
The passage of heat and the 6th heat exchanger channels, waste heat boiler 210 are provided with pump mouth, import and the pump mouth pair of the 5th heat exchanger channels
Connect, the outlet of the 5th heat exchanger channels is docked with the feed-water inlet of waste heat boiler 210, the import of the 6th heat exchanger channels and the 4th heat exchange
The outlet docking of passage, the outlet of the 6th heat exchanger channels is docked with the fuel inlet of gas turbine 100.By preheating heat exchanger
Fuel after 310 heating for the first time is heated for second in fuel heater 410, is further improved into gas turbine 100
Fuel temperature.Pump mouth between the import of the 5th heat exchanger channels be provided with flow control valve 420；But not limited to this, according to
Need or, being exported between the feed-water inlet of waste heat boiler 210 for the 5th heat exchanger channels is provided with flow control valve 420.
The fuel temperature of the outlet of 6th heat exchanger channels is 175 DEG C to 185 DEG C.
Combustion and steam association system progress control method, including：
A, fuel and air enter work by combustion in gas turbine 100, and the flue gas after acting enters in waste heat boiler 210,
Feedwater to waste heat boiler 210 is heated, and feedwater is heated to be vapor and done work into steam turbine 220, the water after acting
Steam is cooled to feedwater by condenser 230 and is back to waste heat boiler 210；
The cooling water of condenser 230 enters the first heat exchanger channels, and cycle fluid is in the second heat exchanger channels, the 3rd heat exchanger channels
Part vapor in interior circulation, steam turbine 220 enters in driving heat source passage from extraction opening is used as absorption heat pump 300
Driving force, makes cycle fluid be warmed in the second heat exchanger channels, and cooling water cools in the first heat exchanger channels；After heating
Cycle fluid heating flow through the air or fuel of the 4th heat exchanger channels, make the air or fuel temperature into gas turbine 100
Rise.
Fired at B, the air intlet of gas turbine 100 detected according to temperature sensor at the temperature of air or fuel inlet
The temperature of material, adjusts flow control valve 320, controls the stream of the cycle fluid in the second heat exchanger channels and the 3rd heat exchanger channels
Amount, so as to control the temperature of the fuel or air into gas turbine 100.
The pump mouth between the import of the 5th heat exchanger channels be provided with flow control valve 420；But not limited to this,
Can be that being exported between the feed-water inlet of the waste heat boiler 210 for the 5th heat exchanger channels is provided with flow control valve
420.By adjusting flow control valve 420, the feedwater flow from pump mouth incoming fuel heater 410 can be controlled, so as to control
Make the fuel temperature after being heated by fuel heater 410.Temperature sensor is provided with the fuel inlet of gas turbine 100, according to
The fuel temperature that temperature sensor is detected, regulation flow control valve 420 is similar with the regulation of flow control valve 320, and joint is adjusted
Throttle control valve 320 and flow control valve 420 so that the fuel temperature or air themperature for entering gas turbine 100 reach reason
Make combustion and steam association system efficiency highest set temperature value by calculating.
Each technical characteristic of above example can be combined arbitrarily, to make description succinct, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield, is all considered to be the scope of this specification record.
Above example only expresses the several embodiments of the present invention, and it describes more specific and detailed, but can not
Therefore it is construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art,
On the premise of not departing from present inventive concept, various modifications and improvements can be made, these belong to protection scope of the present invention.
Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (8)
1. a kind of combustion and steam association system, it is characterised in that including：
Gas turbine；
Steam circuit, the steam circuit is provided with waste heat boiler, steam turbine and condenser, the steam
Turbine is provided with extraction opening, and the waste heat boiler is provided with pump mouth；
Absorption heat pump, the absorption heat pump has the first heat exchanger channels being engaged, the second heat exchanger channels and driving heat
Source channels；
Preheating heat exchanger, the preheating heat exchanger has the 3rd heat exchanger channels and the 4th heat exchanger channels being engaged；
Fuel heater, the fuel heater has the 5th heat exchanger channels and the 6th heat exchanger channels being engaged；
Wherein, the import of the driving heat source passage is docked with the extraction opening, the outlet of the driving heat source passage with it is described
The steam inlet docking of condenser；
The import of first heat exchanger channels docks with the cooling water outlet of the condenser, and first heat exchanger channels go out
Mouth is docked with low-temperature receiver or cooling tower；
The import of second heat exchanger channels is docked with the outlet of the 3rd heat exchanger channels, the outlet of second heat exchanger channels
Import with the 3rd heat exchanger channels is docked；
The import of 4th heat exchanger channels is docked with air-source or fuels sources, outlet and the combustion of the 4th heat exchanger channels
The air intlet of gas-turbine or fuel inlet docking；
The import of 5th heat exchanger channels is docked with the pump mouth, outlet and the waste heat pot of the 5th heat exchanger channels
The feed-water inlet docking of stove；
The pump mouth between the import of the 5th heat exchanger channels be provided with flow control valve；Or, the 5th heat exchanger channels
It is exported between the feed-water inlet of the waste heat boiler provided with flow control valve；
The import of 6th heat exchanger channels is docked with the outlet of the 4th heat exchanger channels, the outlet of the 6th heat exchanger channels
Fuel inlet with the gas turbine is docked.
2. combustion and steam association system according to claim 1, it is characterised in that the outlet of second heat exchanger channels with
Flow control valve is provided between the import of 3rd heat exchanger channels；Or, the import of second heat exchanger channels and described the
Flow control valve is provided between the outlet of three heat exchanger channels.
3. combustion and steam association system according to claim 1, it is characterised in that the air intlet of the gas turbine is set
There is temperature sensor；Or/and, the fuel inlet of the gas turbine is provided with temperature sensor.
4. combustion and steam association system according to claim 1, it is characterised in that the outlet of the 6th heat exchanger channels
Fuel temperature is 175 DEG C to 185 DEG C.
5. combustion and steam association system according to claim 1, it is characterised in that the outlet of the 4th heat exchanger channels
Fuel temperature is 100 DEG C to 120 DEG C.
6. the combustion and steam association system according to any one of claim 1 to 5, it is characterised in that first heat exchange is logical
The cooling water temperature of the outlet in road is 25 DEG C to 35 DEG C.
7. a kind of progress control method of combustion and steam association system as described in claim any one of 1-6, it is characterised in that
Including：
Fuel and air enter work by combustion in gas turbine, and the flue gas after acting enters in waste heat boiler, to waste heat boiler
Feedwater is heated, and feedwater is heated to be vapor and done work into steam turbine, and the vapor after acting is cold by condenser
But it is back to waste heat boiler for feedwater；
The cooling water of condenser enter the first heat exchanger channels, cycle fluid in the second heat exchanger channels, the 3rd heat exchanger channels interior circulation,
Part vapor in steam turbine enters the driving force in driving heat source passage as absorption heat pump from extraction opening, makes circulation
Working medium is warmed in the second heat exchanger channels, and cooling water cools in the first heat exchanger channels；Cycle fluid after heating adds
Air or fuel of the hot-fluid through the 4th heat exchanger channels, make air or the fuel temperature rise into gas turbine.
8. combustion and steam association system progress control method according to claim 7, it is characterised in that according to TEMP
At the gas turbine air intlet that device is detected at the temperature of air or fuel inlet fuel temperature, adjust flow control valve,
The flow of the cycle fluid in the second heat exchanger channels and the 3rd heat exchanger channels is controlled, so as to control the fuel into gas turbine
Or the temperature of air.
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| CN201511034899.XA CN105484816B (en) | 2015-12-31 | 2015-12-31 | Combustion and steam association system and its progress control method |
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| CN201511034899.XA CN105484816B (en) | 2015-12-31 | 2015-12-31 | Combustion and steam association system and its progress control method |
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| CN105484813B (en) * | 2015-12-31 | 2017-07-11 | 中国能源建设集团广东省电力设计研究院有限公司 | Combustion and steam association system and its progress control method |
| JP6730202B2 (en) * | 2017-01-16 | 2020-07-29 | 三菱日立パワーシステムズ株式会社 | Control system, gas turbine, power plant and fuel temperature control method |
| JP6791801B2 (en) * | 2017-04-10 | 2020-11-25 | 三菱パワー株式会社 | Control method of gas turbine combined cycle plant and gas turbine combined cycle plant |
| CN116658300A (en) * | 2023-05-16 | 2023-08-29 | 广东粤电新会发电有限公司 | Gas-steam combined cycle unit and control method thereof |
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| JPH05240004A (en) * | 1992-02-28 | 1993-09-17 | Hitachi Ltd | Optimal operation method for heat recovery power generation plant |
| JP3782567B2 (en) * | 1997-12-10 | 2006-06-07 | 株式会社東芝 | Thermal power plant |
| US6065280A (en) * | 1998-04-08 | 2000-05-23 | General Electric Co. | Method of heating gas turbine fuel in a combined cycle power plant using multi-component flow mixtures |
| JP3690972B2 (en) * | 2000-08-08 | 2005-08-31 | 三菱重工業株式会社 | Steam cooled gas turbine |
| JP2007205187A (en) * | 2006-01-31 | 2007-08-16 | Hitachi Engineering & Services Co Ltd | Heat recovery system attached to boiler-steam turbine system |
| US20130213054A1 (en) * | 2012-02-21 | 2013-08-22 | Genaral Electric Company | Gas Turbine Inlet System with Solid-State Heat Pump |
| JP6188192B2 (en) * | 2013-03-25 | 2017-08-30 | 三菱重工業株式会社 | Gas turbine fuel preheating device, gas turbine plant equipped with the same, and gas turbine fuel preheating method |
| CN203547925U (en) * | 2013-11-20 | 2014-04-16 | 中国神华能源股份有限公司 | Gas-steam combined cycle power plant |
| CN104533551B (en) * | 2014-08-29 | 2016-03-30 | 中国华能集团清洁能源技术研究院有限公司 | Central heating system and method for IGCC heat and power cogeneration with recovery of waste heat |
| CN104534539A (en) * | 2015-01-08 | 2015-04-22 | 清华大学 | Gas steam combined cycle central heating device and heating method |
| CN104848199A (en) * | 2015-04-23 | 2015-08-19 | 张中印 | Method for recovering waste heat from power plant through absorption heat pump to heat boiler water |
| CN205445803U (en) * | 2015-12-31 | 2016-08-10 | 中国能源建设集团广东省电力设计研究院有限公司 | Gas steam combination system |
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2015
- 2015-12-31 CN CN201511034899.XA patent/CN105484816B/en active Active
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