WO2007074570A1 - 太陽熱発電設備および熱媒体供給設備 - Google Patents
太陽熱発電設備および熱媒体供給設備 Download PDFInfo
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- WO2007074570A1 WO2007074570A1 PCT/JP2006/320906 JP2006320906W WO2007074570A1 WO 2007074570 A1 WO2007074570 A1 WO 2007074570A1 JP 2006320906 W JP2006320906 W JP 2006320906W WO 2007074570 A1 WO2007074570 A1 WO 2007074570A1
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- Prior art keywords
- steam
- heat medium
- heat
- power generation
- heating
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G6/00—Devices for producing mechanical power from solar energy
- F03G6/003—Devices for producing mechanical power from solar energy having a Rankine cycle
- F03G6/005—Binary cycle plants where the fluid from the solar collector heats the working fluid via a heat exchanger
-
- 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
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G6/00—Devices for producing mechanical power from solar energy
- F03G6/06—Devices for producing mechanical power from solar energy with solar energy concentrating means
- F03G6/065—Devices for producing mechanical power from solar energy with solar energy concentrating means having a Rankine cycle
- F03G6/067—Binary cycle plants where the fluid from the solar collector heats the working fluid via a heat exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
- F24S23/74—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with trough-shaped or cylindro-parabolic reflective surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S90/00—Solar heat systems not otherwise provided for
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
-
- 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]
Definitions
- the present invention relates to a solar thermal power generation facility including a solar thermal combined power generation and a heat medium supply facility.
- steam is generated by a heat medium heated by solar heat, and the steam turbine is driven by the steam to generate power, and steam to be supplied to the solar power generation facility is generated.
- the present invention relates to a heat medium supply facility used for various purposes.
- a heat collecting device In the conventional solar thermal power generation equipment 101 shown in FIG. 15, sunlight is collected by a concentrating heat collecting device (hereinafter simply referred to as a heat collecting device) 102 and absorbed by a heat medium as heat energy. This heat medium is guided to the heat exchanger 103, and steam is generated by the heat of the heat medium. The saturated steam generated in the heat exchange 103 is superheated by the superheater (super heater) 104. The steam turbine 105 is driven by the superheated steam to generate power.
- Reference numeral 106 in the figure is a generator, and reference numeral 107 is a condenser.
- a parabolic trough (parabolic cross section) type reflector 102a is frequently used as the distributed heat collecting apparatus 102.
- the reflector 102a is formed in a bowl shape having a cross section indicated by a parabola on the XY plane, and reflects incident sunlight and collects it at the focal point.
- a heat medium is passed through the heat absorption pipe 108 extending along the Z-axis through this focal position to collect and collect solar heat. This heat medium is circulated to the heat exchanger and the heat collector through the heat absorption pipe 108 and the heat medium supply pipe 109 connected thereto.
- a special hydraulic fluid is often used as the heating medium.
- the heat medium absorbs solar heat to become a high temperature state (about 400 ° C.), releases heat in heat exchange 103 and generates steam to become a low temperature state (about 300 ° C.), and collects heat again. Head to device 102.
- the intensity of solar energy reaching the heat collector 102 changes to the maximum level at zero level in one day. Therefore, the capacity of the power generation equipment 101 is normally planned to be able to generate power at an average intensity level. Excess energy above the average level of solar energy is stored as heat energy in the heat storage facility 110, which is large and expensive, and when sunset approaches, this heat is released to generate steam, It is often planned to continue power generation. However, in reality, the heat storage capacity is limited to about 4 to 6 hours in terms of power generation duration due to restrictions on equipment costs and operation costs, so power generation can be continued all day long. Can not.
- European Patent Application Publication No. 0750730 and European Patent Application Publication No. 0526816 include a solar combined power generation in which a gas turbine power generation is combined with a steam turbine power generation using solar heat.
- a method has been proposed. These combined power generation facilities are designed to perform power generation using a gas turbine and power generation using a steam turbine that uses steam from an exhaust heat recovery boiler, even at night or on cloudy days when solar heat cannot be used. It is. By doing so, we can expect to continue power generation day and night. It can also be expected to reduce fuel consumption and reduce carbon dioxide emissions by maximizing solar power generation.
- the amount of collected heat decreases rapidly due to fluctuations in sunshine conditions, such as clouds and sandstorms. Furthermore, when the reflector is stagnated by wind, sufficient sunlight cannot be concentrated on the heat absorption pipe. This also causes a temperature drop of the heat medium or the like. Since the temperature drop may occur in a short cycle, the heat storage facility power cannot take out and use the necessary heat in a short time, and the temperature fluctuation of the heat medium cannot be suppressed. Is the current situation.
- the present invention has been made to solve the problem, and even if, for example, a heat medium supplied in a solar power generation facility or the like undergoes temperature fluctuations over time, the fluctuations are leveled. As a result, the fluctuation was sufficiently suppressed at the time of supplying heat for steam generation. It is another object of the present invention to provide a heat medium supply facility capable of supplying a heat medium. It is another object of the present invention to provide a solar power generation facility capable of supplying steam generated by solar heat through a heat medium to a steam turbine in a stable overheated state.
- the heat medium supply facility of the present invention comprises:
- a heat exchanger that heats feed water with the heat medium supplied from the heating facility; a heat medium supply passage that supplies the heat medium from the heating facility to the heat exchanger;
- a heating device for heating the heating medium and a temperature measuring device for measuring the temperature of the heating medium are provided in the heating medium supply passage.
- the heating device can be operated so that the temperature of the heat medium measured by the temperature measuring device does not fall below a predetermined temperature.
- the heat medium supply passage includes a temperature fluctuation suppressing device for suppressing temperature fluctuation of the heat medium
- the temperature fluctuation suppressing device includes a plurality of heat medium passages through which the heat medium passes, and an inlet and an outlet for the heat medium,
- the heat medium flowing from the heat medium supply passage to the inlet may be merged after passing through the plurality of heat medium passages with a time difference and flow out from the outlet to the heat medium supply passage. It can be configured.
- the liquid heat medium that is supplied from time to time through the heat medium supply passage flows into the temperature fluctuation suppression device, and comes out of each of the plurality of heat medium paths and is mixed with a time difference. Therefore, even when the temperature of the heat medium is fluctuating, the temperature fluctuation width is reduced and the temperature fluctuation speed is lowered by mixing the time difference. As a result, for example, the conditions of the steam generated by the heat of this heat medium are temporal. It becomes uniform.
- the time-difference mixing means that the heat medium flowing into the temperature fluctuation suppressing device with continuous time delay is mixed with the heat medium that has already flown and stayed.
- the heating device includes a plurality of heat medium passages through which the heat medium passes, inlets and outlets for the heat medium, and a heating medium for heating the heat medium flowing through the plurality of heat medium passages.
- the heat medium flowing into the inlet from the heat medium supply passage is merged after passing through the plurality of heat medium passages with a time difference, and flows out to the outlet force heat medium supply passage. It can also be configured to be able to.
- This heat medium heating apparatus is preferable because it can heat the heat medium and simultaneously perform time difference mixing.
- a heat medium supply facility having heat exchange for generating steam to be supplied to the steam turbine, and supplying a heat medium for heating water in the heat exchanger;
- a steam supply passage for supplying steam from the heat exchanger to the steam turbine, and this heat medium supply facility is one of the heat medium supply facilities described above.
- the solar heat power generation facility further includes a gas turbine, and a waste heat recovery boiler that generates steam using exhaust heat of the gas turbine and supplies the steam to the steam turbine, and the exhaust heat recovery boiler
- a gas turbine and a waste heat recovery boiler that generates steam using exhaust heat of the gas turbine and supplies the steam to the steam turbine
- the exhaust heat recovery boiler In addition, an evaporator having a steam drum and a superheater may be provided, and steam generated by heating water supplied to the exhaust heat recovery boiler may be supplied to the steam turbine. it can.
- This is a solar power complex power generation facility.
- the steady state steam generated in the heat exchanger of the heat medium supply facility and the stable state steam generated in the exhaust heat recovery boiler can be supplied to the steam turbine.
- the steam supply passage is connected from a heat exchanger of a heat medium supply facility to the steam drum, and in this steam drum, steam from the heat exchanger and steam generated in the exhaust heat recovery boiler are After being mixed, it can be configured to be supplied to the steam turbine via the superheater. With this configuration, the saturated steam from the heat exchanger can be overheated in the superheated portion of the exhaust heat recovery boiler together with the steam generated in the exhaust heat recovery boiler.
- a steam mixing device is disposed in a steam path from the evaporation section to the superheat section,
- the steam supply passage is connected from the heat exchanger of the heat medium supply facility to the steam mixing device, and in this steam mixing device, the steam from the heat exchanger and the steam generated in the exhaust heat recovery boiler are mixed. It can be configured to be supplied to the steam turbine via the superheated part. With this configuration, the saturated steam from the heat exchanger can be overheated in the superheated portion of the exhaust heat recovery boiler together with the steam generated in the exhaust heat recovery boiler.
- a panner for heating steam can be disposed in the superheated portion of the exhaust heat recovery boiler. According to this configuration, even when the state of the saturated steam sent to the superheated portion of the exhaust heat recovery boiler is fluctuating, the steam when the wetness is high is heated by the panner, It is possible to reduce fluctuations in the wetness of steam and to make dry steam.
- the steam supply passage is branched into a first steam passage and a second steam passage, the first steam passage is connected to an exhaust heat recovery boiler, and the second steam passage is steamed without going through the exhaust heat recovery boiler.
- a superheater connected to the turbine and superheated for steam can be installed in the second steam passage.
- An exhaust heat recovery boiler that generates steam using exhaust heat from the gas turbine and supplies the steam to the steam turbine;
- a heat medium supply facility having a heat exchange for generating steam to be supplied to the steam turbine and supplying a heat medium for heating water in the heat exchanger;
- a steam supply passage for supplying steam from the heat exchanger to the steam turbine
- a steam fluctuation suppressing device disposed in the steam supply passage for suppressing the state fluctuation of the steam
- This steam fluctuation suppressing device has a plurality of steam passages through which steam passes, and inlets and outlets for steam. Steam supply passage force A plurality of steams flowing into the inlets After passing through the steam passages with a time difference, they are combined so that they can flow out to the outlet force steam supply passage,
- the heat medium supply facility further includes a heating facility that heats the liquid heat medium with sunlight, and a heat medium supply passage that supplies the heat medium from the heating facility to the heat exchanger.
- the heat medium supply facility may be configured by any one of the heat medium supply facilities described above.
- the exhaust heat recovery boiler includes an evaporation section having a steam drum, and an overheating section.
- the steam supply passage is connected from a heat exchanger of a heat medium supply facility to the steam drum, and the steam from the heat exchanger and the steam generated in the exhaust heat recovery boiler are mixed in the steam drum, and It can be configured to be supplied to a steam turbine.
- the exhaust heat recovery boiler includes an evaporation section having a steam drum, and an overheating section.
- a vapor mixing device is disposed in the vapor passage leading to the superheater,
- the steam supply passage is connected from the heat exchanger of the heat medium supply facility to the steam mixing device, and in this steam mixing device, the steam from the heat exchanger and the steam generated in the exhaust heat recovery boiler are mixed. It can be configured to be supplied to the steam turbine above.
- a parner for heating the steam can be disposed in the superheated portion of the exhaust heat recovery boiler.
- the steam supply passage is branched into a first steam passage and a second steam passage, the first steam passage is connected to an exhaust heat recovery boiler, and the second steam passage is connected to the steam without going through the exhaust heat recovery boiler.
- the turbine Connected to the turbine,
- a superheater for superheating steam can be arranged in the second steam passage.
- variation can be suppressed and relieve
- fluctuations in the state of steam supplied to the steam turbine can be effectively suppressed.
- FIG. 1 is a piping diagram showing an outline of a combined solar thermal power generation facility according to an embodiment of the present invention.
- FIG. 2 is a cross-sectional view showing an example of a heat medium heating device that can be installed in the solar combined power generation facility of FIG.
- FIG. 3 is a cross-sectional view showing another example of a heat medium heating device that can be installed in the solar combined power generation facility of FIG.
- FIG. 4 is a cross-sectional view showing still another example of a heat medium heating device that can be installed in the combined solar heat power generation facility of FIG.
- FIG. 5A is a partially cutaway front view showing still another example of a heat medium heating device that can be installed in the solar combined power generation facility of FIG.
- FIG. 5B is a cross-sectional view taken along line V—V in FIG. 5A.
- FIG. 6 is a piping diagram showing an outline of a combined solar heat power generation facility according to another embodiment of the present invention.
- FIG. 7 is a piping diagram showing an outline of a combined solar thermal power generation facility according to still another embodiment of the present invention.
- Fig. 8 is a piping diagram showing an outline of a combined solar thermal power generation facility according to still another embodiment of the present invention.
- FIG. 9A is a longitudinal section taken along a plane along the central axis of the apparatus, showing an example of a steam fluctuation suppressing apparatus that can be installed in the combined solar thermal power generation facility of FIG.
- FIG. 9B is a cross-sectional view taken along the line IX-IX of FIG. 9A.
- FIG. 10 is a longitudinal sectional view showing still another example of the steam fluctuation suppressing device that can be installed in the combined solar thermal power generation facility of FIG.
- FIG. 11 is a longitudinal sectional view showing still another example of the steam fluctuation suppressing device that can be installed in the solar combined power generation facility of FIG.
- FIG. 12A is a front view showing still another example of the steam fluctuation suppressing device that can be installed in the solar combined power generation facility of FIG.
- FIG. 12B is a cross-sectional view taken along the line XII-- of FIG. 12A.
- FIG. 13 is a piping diagram showing the outline of a combined solar thermal power generation facility that is still another embodiment of the present invention.
- FIG. 14 is a piping diagram showing the outline of a combined solar thermal power generation facility that is still another embodiment of the present invention.
- FIG. 15 is a piping diagram schematically showing an example of a conventional solar power generation facility.
- FIG. 16 is a graph showing an example of temporal change in solar energy density of one day.
- FIG. 1 shows steam turbine power generation in which steam generated by utilizing solar heat is partly driven to generate power by driving a steam turbine 2, and various gaseous fuels and liquid fuels such as natural gas.
- a combined solar thermal power generation facility 1 combined with gas turbine power generation that generates power by burning and driving a gas turbine 3.
- a norabolic trough reflector 4a is used as a heat collecting device 4 for collecting heat for generating steam.
- the reflector 4a is formed in a bowl shape having a cross section indicated by a parabola on the XY plane, and is operated so as to reflect incident sunlight and collect it at the focal point.
- a heat absorption pipe 5 is extended along the Z axis through the focal position of the reflector 4 a, and a liquid heat medium is caused to flow through the heat absorption pipe 5.
- the heat medium supply pipe 6 connected to the heat absorption pipe 5 circulates the heat medium to the heat exchanger 7 and the heat collector 4.
- This heat exchanger 7 functions as an evaporator.
- the heat medium absorbs solar heat in the heat collector 4, supplies heat to water in order to generate steam in the heat exchanger 7, and goes to the heat collector 4 again.
- the heat collecting device 4 and the heat absorption pipe 5 constitute a heating medium heating facility.
- the heat medium supply pipes 6a, 6b, 6c, 6d extending from the plurality of heat collection zones 8a, 8b, 8c, 8d are integrated and connected to the heat exchanger 7.
- a heat medium heating device 10 to be described later is installed in the heat medium supply pipe 6 after the integration.
- the outlet force of heat exchange 7 is also connected to each heat collection zone with a return pipe 9.
- This return pipe 9 is also called the heat medium supply pipe 6.
- the heat medium supply pipe 6 is provided with a circulation pump 9p for circulating the heat medium. Although one pump 9p is shown in FIG. 1, when the heat medium supply pipe 6 is long, a plurality of pumps may be used as needed to share the pressure loss of the pipe.
- the heat collecting device 4, the heat medium supply pipe 6, the heat exchanger 7, and the heat medium heating device 10 constitute the heat medium supply facility 12.
- a generator G is connected to both 2 and 3 respectively.
- the power generation facility 1 is provided with an exhaust heat recovery boiler 13.
- Combustion gas (exhaust gas) used to drive the gas turbine 3 is supplied to the exhaust heat recovery boiler 13 through the exhaust gas pipe 14 to heat the feed water to generate steam, and then passes through the exhaust gas pipe 14. The air is emitted from the chimney 15.
- the steam turbine 2 is driven by steam generated in the heat exchanger 7 and the exhaust heat recovery boiler 13
- the steam that has driven the steam turbine 2 is condensed in the condenser 16, and is then pumped through the feed water pipe 18 by the feed water pump 17. That is, it is first heated by the feed water heater 19 and then degassed by the deaerator 20. After that, it branches and is discharged by pumps 21a and 21b. It is sent to heat recovery boiler 13 and heat exchanger 7.
- the steam generated in each of the heat exchanger 7 and the exhaust heat recovery boiler 13 is joined and sent to the steam turbine 2 through the integrated steam supply pipe 22.
- the integrated steam supply pipe 22 passes through the superheater 25 of the exhaust heat recovery boiler 13.
- the flow distribution between the water supply to the heat recovery steam generator 13 and the water supply to the heat exchanger 7 is adjusted according to the actual required power generation amount and the solar heat recovery amount based on the amount of steam generated during the construction plan of the equipment. .
- the exhaust heat recovery boiler 13 includes an economizer (preheater) 23, an evaporator (evaporator) 24 including a steam drum 26, and a super heater (superheater) 25 as an example of a basic configuration.
- the steam generated in the heat exchanger 7 is saturated. Therefore, before supplying this saturated steam to the steam turbine 2, the superheater 25 of the exhaust heat recovery boiler 13 is used to form superheated steam.
- a steam supply pipe 27 is connected from a steam outlet of the heat exchanger 7 to a steam drum 26 located upstream of the super heater 25.
- the saturated steam from the heat exchanger 7 supplied to the steam drum 26 through the steam supply pipe 27 is mixed with the steam generated in the evaporator 24 of the exhaust heat recovery boiler 13 in the steam drum 26.
- the mixed steam is sent to the super heater 25 to become superheated steam.
- the super heater 25 is designed and manufactured to have a performance (heat transfer area) that can heat the total amount of the saturated steam from the heat exchanger ⁇ 7 and the saturated steam from the evaporator 24 to a predetermined superheat temperature. Therefore, the exhaust heat recovery boiler 13 can supply the steam turbine 2 with superheated steam with stable properties.
- a flow rate adjusting valve 28 in the steam supply pipe 27 described above.
- This flow control valve 28 reduces the amount of heat collected due to light being blocked by daytime clouds, drastically decreases the heat collection efficiency due to the heat collector 4 being trapped by the wind pressure of the sandstorm, and solar heat collection due to sunset.
- the steam supply amount to the exhaust heat recovery boiler 13 is controlled so that it does not change suddenly even if it suddenly decreases.
- the flow rate adjusting valve 28 is controlled so that the amount of generated steam that starts to increase with sunrise does not hinder the operation of the exhaust heat recovery boiler 13. Furthermore, since the steam in the steam supply pipe 27 disappears especially after sunset, the steam supply pipe 27 is controlled to be closed.
- the heat collection zone is changed due to changes in weather conditions such as sunshine conditions.
- the temperature of the heat medium supplied from 8 fluctuates over time. Therefore, in this solar combined heat generation facility 1, even if the temperature of the heat medium in the heat collecting device 4 is reduced, the temperature seems to be sufficiently recovered when the heat medium reaches the heat exchange 7.
- the heat medium supply pipe 6 is provided with the heat medium heating device 10 for heating the heat medium.
- FIG. 2 shows details of the heat medium heating device 10.
- the heat medium supply pipe 6 is curved in a spiral shape, and the spiral portion is covered with a hood 36.
- a heating means 37 such as a panner for heating the spiral portion is installed below the spiral portion.
- At the upper end of the hood there is formed an opening 36a through which the combustion gas of the same force as the panner is discharged and the heat medium supply pipe 6 is inserted.
- the shape is not limited to the shape shown in the figure, and for example, a shape in which the heat medium supply tube 6 is spirally wound in a double or more manner may be used.
- the heat medium supply tube 6 may be aggregated in a twisted shape (a state where the heat medium supply tube 6 is continuously bent). Further, heat transfer fins may be formed on the heat medium supply pipe 6 having these shapes.
- a part of the heat medium supply pipe 6 has a double pipe shape, and a heating means 37 such as a panner is provided inside the inner pipe 38a, and the inner pipe 38a and the outer pipe.
- a heating means 37 such as a panner is provided inside the inner pipe 38a, and the inner pipe 38a and the outer pipe.
- a heat medium heating device 39 shown in FIG. 4 is one in which a heating means 40 such as an electric heater is wound around the outer peripheral surface of the heat medium supply pipe 6 and a heat insulating material 40a is applied to the outer peripheral surface.
- a heating means 40 such as an electric heater
- a heat insulating material 40a is applied to the outer peripheral surface.
- any other suitable heating means can be applied.
- high-temperature steam may be used as the heating heat source instead of the electric heater.
- the heat medium supply pipe 6 on the upstream side and the downstream side of the heat medium heating device 10 is provided with a temperature measuring device 29 that continuously measures the temperature of the heat medium.
- Upstream temperature measuring device 29 When the abnormal temperature drop of the heat medium is detected, the heat medium heating device 10 is operated. Then, the heat medium heating device 10 is feedback controlled based on the measurement result of the temperature measuring device 29 on the downstream side. For example, the maximum temperature of the heat medium at the entrance of heat exchanger 7 is 395. Feedback control is performed so that a constant value of about C is maintained.
- the heat medium heating device 10 may be controlled by a separately installed control device 70 (FIG. 1) so that the heat medium does not fall below a predetermined allowable minimum temperature.
- the temperature of the heat medium will drop significantly (for example, about 40 ° C or higher) due to the observation of light shielding due to cloud generation. If the heating medium heating device 10 is activated,
- the heat medium heating device 10 has an effect of suppressing the temperature fluctuation of the heat medium during the daytime, the heat medium supply after sunrise is heated by circulating the heat medium whose temperature has decreased after sunset. Enables rapid start-up of equipment 12.
- the heat medium mixing device 11 includes a heat medium inlet 11a connected to the upstream side of the heat medium supply pipe 6 and a heat medium connected to the downstream side of the heat medium supply pipe 6 separately from the inlet 11a.
- the exit lib and each are formed.
- the heat medium mixing device 11 has a plurality of heat medium passages.
- This heat medium mixing device 11 is detailed in an international patent application (PCTZJP2006Z312162) filed by the applicant of the present application. In the present embodiment, the heat medium mixing device 11 is installed on the downstream side of the heat medium heating device 10, but the heat medium mixing device 11 may be installed on the upstream side of the heat medium heating device 10.
- the heat medium that flows into the heat medium mixing device 11 while changing its temperature from time to time is mixed with a time difference therein. That is, the heat medium that has flowed into the heat medium mixing device 11 at the same time passes through a plurality of different heat medium passages, and the partial force that flows out from the outlet lib relatively quickly until the portion that stays in the passage of the heat medium mixing device 11 until late. Distributed.
- a new heat medium continuously flows in from the inlet 1 la
- the heat medium that has flowed in the past and the heat medium that has flowed in in the past are constantly mixed. This means that temperature fluctuations are uniformed.
- this is called time difference mixing.
- the heat medium mixing device functions as a heat medium temperature fluctuation suppressing device.
- a temperature measuring device 29 for continuously measuring the temperature of the heat medium in each of the heat medium supply pipes 6 on the upstream side and the downstream side of the heat medium mixing device 11.
- This temperature measuring device 29 can detect a temperature change in the heat medium supply pipe 6 on the upstream side and the downstream side.
- the control device 70 receives a signal indicating the temperature variation of the upstream and downstream heat medium from the temperature measuring device 29. By comparing these, the temperature variation by the heat medium mixing device 11 is suppressed. The degree of effect can be monitored.
- the heat medium heating device 10 and the heat medium mixing device 11 described above are replaced with the heat medium supply self-tubes 6a, 6b, 8a, 8b, 8c, 8d in the heat collection zones 8a, 8b, 8c, 8d, instead of the positions shown in FIG. 6c and 6d may be installed independently of each other. Further, as exemplified below, a structure in which the heat medium heating device 10 and the heat medium mixing device 11 are combined may be employed.
- the heat medium heating device 41 shown in FIGS. 5A and 5B has a function of mixing with a function of heating the heat medium.
- FIG. 5A is a front view showing a state in which the following hood 43 of the heat medium heating device 41 is partially cut away
- FIG. 5B is a cross-sectional view taken along the line V-V in FIG. 5A.
- the function of mixing the heat medium of the heat medium heating device 41 is exhibited by a plurality of heat medium passages as in the heat medium mixing device 11 described above.
- Each heat medium passage of the heat medium heating device 41 includes an independent container 42.
- the containers 42 have almost the same volume. Each container 42 is formed with an inlet hole 42a and an outlet hole 42b.
- the upstream side heat medium supply pipe 6 is branched into a plurality of branch pipes and connected to each inlet hole 42a. Each branch pipe is provided with a flow control valve 54. The flow rate of the heat medium flowing into each container 42 is made different by adjusting the opening degree of the flow rate adjusting valve 54.
- a downstream heat medium supply pipe 6 is branched into a plurality of branch pipes and connected to each outlet hole 42b. Then, the heat medium flowing out of the container 42 with a time difference starts to be mixed into the integrated downstream heat medium supply pipe 6 portion. That is, the heat medium is mixed with time difference, the temperature fluctuation range is reduced, and the fluctuation speed is reduced.
- the plurality of containers 42 are covered with a hood 43.
- a heating means 44 such as a panner for heating the containers 42 is installed below all the containers 42 in the hood 43.
- an opening 43a is formed for discharging combustion gas having a force such as a panner.
- the heating means 44 heats the heat medium flowing in each container 42.
- the volumes of the containers may be different from each other, and the heat medium flow rates flowing into the containers may be substantially the same. In that case, it is not necessary to install a flow control valve on the inlet side. Even in such a heat medium fluctuation suppressing device, effective time difference mixing of the flowing heat medium is performed, and the temperature fluctuation of the heat medium is suppressed.
- a device for suppressing the variation of the steam state due to the temperature variation of the heat medium is also provided in the steam supply line to the steam turbine 2. Specifically, even when the steam state fluctuates, the superheater 25 of the exhaust heat recovery boiler 13 is used for heating in order to bring the steam on the inlet side of the steam turbine 2 into a stable overheat state. Auxiliary burner 30 is installed. The fluctuation of the steam state can be suppressed by eliminating the temperature drop of the heat medium by the heat medium heating device 10 described above without installing the auxiliary burner 30. This is preferable because it can further improve the effect of suppressing the fluctuations in the temperature and achieving a stable overheating state.
- the state of the steam sent to the super heater 25 also changes.
- the capacity of the super heater 25 can be increased by chasing the steam whose wetness has increased as a part of this fluctuation with the auxiliary burner 30. Since solar energy is at its maximum during the day, economic operation is often carried out by performing partial load operation while reducing the load on the gas turbine 3. At this time, even when the temperature of the heat medium is suddenly lowered, it is possible to reduce the fluctuation of the superheated steam and keep it constant by the operation of the auxiliary burner 30.
- a steam supply pipe 27 that supplies saturated steam generated in the heat exchanger 7 may be connected to a separately disposed steam mixing apparatus 31 that is not the steam drum 26.
- the generated saturated steam can be mixed with the steam mixing device 31.
- the steam mixing device 31 may be a tank having a relatively large volume, or may be a tank of a type whose content volume can be changed according to the tank internal pressure.
- the steam mixing device 31 is a tank having a large capacity as compared with the steam drum 26 described above.
- the steam mixing device 31 is used when the amount of steam generated in the exhaust heat recovery boiler 13 is planned to be equal to or greater than the amount of steam sent from the heat exchanger 7, or This is effective when a sufficient amount of exhaust gas can be secured by always operating the bottle 3 in the rated state. There is no difference from the power generation equipment 1 shown in FIG. 1 except that a steam mixing device 31 is attached and the saturated steam from the heat exchanger 7 is sent to the steam mixing device 31 instead of the steam drum 26. Therefore, components other than the steam mixing device 31 are denoted by the same reference numerals as those in FIG.
- the steam mixing device 31 is preferably provided with a perforated plate having a large number of through holes arranged so as to block the steam flow path. According to this configuration, on the upstream side of the perforated plate, which resists fluid flow, the steam generated in the combined exhaust heat recovery boiler 13 and the steam sent from the heat exchanger 7 are mixed, and the through hole is formed. Immediately after passing, it is further mixed and mixing is promoted. This promotes uniform mixing.
- each perforated plate has a plurality of through holes.
- the multiple perforated plates are overlapped with each other, they are displaced relative to each other in the surface direction, so that the degree of overlap of the through holes of each perforated plate changes and the aperture ratio of all through holes changes. May be.
- FIG. 7 shows a power generation facility that converts the saturated steam generated in the heat exchanger 7 into superheated steam by a superheater 32 that is arranged independently of the exhaust heat recovery boiler 13.
- the superheater 32 heats saturated steam by burning various gaseous fuels such as natural gas or liquid fuel, for example.
- a steam supply pipe 27 connected to the outlet of the heat exchanger 7 is branched downstream of the flow regulating valve 28.
- One branch pipe (referred to as the first steam supply pipe) 33 is connected to the steam drum 26 of the exhaust heat recovery boiler 13 as in FIG. Yes.
- the other branch pipe (referred to as a second steam supply pipe) 34 is assembled into an integrated steam supply pipe 22 that supplies superheated steam from the exhaust heat recovery boiler 13 to the steam turbine, and is connected to the steam turbine 2.
- the heating device 32 is installed in the second steam supply pipe 34.
- This solar thermal power generation facility is not different from the power generation facility 1 shown in FIG. 1 except that the second steam supply pipe 34 and the heating device 32 are installed. Therefore, components other than the second steam supply pipe 34 and the heating device 32 are denoted by the same reference numerals as those in FIG.
- Stop valves 35 are disposed on the upstream side of the steam drum 26 in the first steam supply pipe 33 and on the upstream side of the integrated steam supply pipe 22 with the second steam supply pipe 34, respectively. Yes. Stop valves 35 are also arranged on the upstream side and the downstream side of the superheater 32 in the second steam supply pipe 34, respectively. By operating these stop valves 35, the saturated steam generated in the heat exchanger 7 can be selectively supplied to the exhaust heat recovery boiler 13 and the superheater 32. That is, the saturated steam generated in the heat exchanger 7 can be used as superheated steam in one of the exhaust heat recovery boiler 13 and the superheater 32, or both can be used as superheated steam.
- the superheater 32 is used to convert the superheated steam to the steam turbine 2. The power generation can be continued.
- the power generation facility shown in FIG. 8 is a steam fluctuation suppressing device 45 that mixes saturated steam from the heat exchanger 7 with the power generation equipment 1 in FIG. Is arranged.
- This power generation facility is not different from the power generation facility 1 shown in FIG. 1 except that the steam fluctuation suppressing device 45 is provided in the steam supply pipe 27. Therefore, constituent elements other than the steam fluctuation suppressing device 45 are denoted by the same reference numerals as those in FIG. 1 and description thereof is omitted.
- the steam fluctuation suppressing device 45 is also a device for suppressing the fluctuation of the steam state due to the temperature fluctuation of the heat medium, together with the above-described auxiliary burner 30.
- the above-mentioned auxiliary pan 30 operates in response to an increase in the wetness of the saturated steam to maintain a stable superheat of the supplied steam. 45 wet
- the saturated steam supplied with varying degrees of temperature is used to make the saturated steam with a substantially stable wetness by the above-mentioned time difference mixing, and the function to heat the saturated steam to the state of superheated steam is on the downstream side.
- auxiliary pan 30 or superheater 32 Fig. 14).
- the saturated steam that has passed through the steam fluctuation suppressing device 45 is supplied to the steam drum 26 in a stable state with its fluctuation in wetness being suppressed.
- the saturated steam having a stable wetness is mixed with the saturated steam generated in the exhaust heat recovery boiler 13 having a stable wetness in the steam drum 26. Therefore, the operation state of each of the devices 25, 30, 32 for steam superheating located on the downstream side is also stabilized. Therefore, the steam fluctuation suppressing device 45 can be expected to have a steam fluctuation suppressing effect even when used instead of the heat medium heating device 10 or the heat medium mixing device 11 provided in the heat medium supply facility 12. May be used with 10 and 11.
- FIGS. 9A to 12B show different types of steam fluctuation suppressing devices 45, 46, 47, and 48, respectively.
- Each of these steam fluctuation suppression devices has a steam inlet (for example, inlet hole 52) connected to the upstream side of the steam supply pipe 27 and a steam connected to the downstream side of the steam supply pipe 27 separately from this inlet. And an outlet (for example, outlet hole 53).
- Various measures have been taken to ensure that the saturated steam is sufficiently time-mixed inside. That is, in the steam fluctuation suppressing device, a part of the saturated steam that flows into it stays in the interior for a long time and is sufficiently mixed with the saturated steam that continues to flow in, so that effective time-difference mixing is performed. It is comprised so that.
- the saturated steam that flows into the steam passage passes through the plurality of steam passages formed therein over different times, and the saturated steam that has passed through each steam passage is passed through. By mixing, time difference mixing is achieved.
- a tank in which compartments 49 as a plurality of steam passages are formed therein as steam passage constituent members constituting a plurality of different steam passages. 50 is adopted.
- a plurality of cylindrical partition walls 51 whose upper ends are open on the floor surface in the cylindrical tank 50 are arranged concentrically at intervals, and the tank peripheral wall and the cylindrical partition wall 51 And the space between the cylindrical partition walls 51 Each of these spaces constitutes a steam passage 49.
- each compartment (steam passage) 49 is formed by the space between the ceiling of the tank 50 and the upper end of each cylindrical partition wall 51. It is communicated.
- a steam inlet hole 52 is formed at a position corresponding to each compartment 49 at the bottom of the tank 50, and one steam outlet connected to the downstream steam supply pipe 27 is formed on the ceiling of the tank 50.
- a hole 53 is formed. The steam that passes through each of the steam passages 49 joins at the outlet hole 53 and is mixed there.
- the steam passage component in FIG. 9A has four steam passages 49a, 49b, 49c, and 49d. The number of steam passage components is not limited to this number. If you realize, there are many viewpoints.
- An upstream steam supply pipe 27 is branched and connected to each inlet hole 52, and a flow rate adjusting valve 54 for adjusting the flow rate of the incoming steam is installed in each branch pipe.
- all the compartments 49 have substantially the same volume.
- the flow rate of the steam that flows into each compartment 49 is made different by adjusting the opening degree of the flow rate adjusting valve 54.
- the time taken for the vapors flowing into the respective compartments 49 to reach the outlet holes 53 varies depending on the compartments 49a, 49b, 49c, and 49d.
- the steam that has flowed out of each compartment and joined together is mixed with time difference, and fluctuations in wetness are suppressed. I will explain this below.
- the ratio of the steam flow rate flowing into the first to nth steam passages with the same volume W is 1: 2: 3: ⁇ ⁇
- the amount of steam 2VZ ⁇ n '(n + l) Z2 ⁇ that flows into the second steam passage at the same time as the first steam passage is time t2.
- the steam that has flowed into all the steam passages at the same time flows out after a different time, and the steam passage forces also flow out and are mixed by joining at the outlet hole 53. .
- the steam flowing into the steam fluctuation suppression device 45 is effectively time differenced. Mixing is performed and fluctuations in the wetness of the steam are suppressed.
- a mixer or a stirring device may be installed in the outlet hole 53 in order to further mix the steam that has flowed out with each steam passage force time difference after merging.
- a rotating body such as a screw propeller, a forced jet device, or the like can be adopted.
- the electric motor or the like for driving the rotating body is preferably installed outside the tank or the steam passage. Further, instead of the rotating body or the like, a structural member that changes the aspect of the flow of steam may be fixed. For example, attach fixed blades to the inner wall of the flow path.
- the flow rate of steam flowing into each steam passage is an integer ratio, but any flow rate ratio can be selected without being limited to such a configuration. Further, the same flow rate of steam may be allowed to flow into some of the plurality of steam passages as necessary.
- the plurality of steam passages have the same volume, and the flow rates of the steam flowing into the respective steam passages are different from each other.
- the volume of the passages may be different, and the inflow steam flow rate may be the same.
- a plurality of cylindrical partition walls are arranged concentrically at intervals in the tank in the same manner as the steam fluctuation suppressing device 45 of FIG. 9, and between the peripheral wall of the tank and the cylindrical partition wall. These spaces and the space between the cylindrical partition walls are used as steam passages.
- the interval between the cylindrical partition walls is different from that shown in FIG. 9A, and the volume ratio of the steam passages (compartments) is, for example, 1: 2: 3: 4 from the inside.
- the upstream steam supply pipe 27 is branched and connected to each inlet hole of the tank, but the flow rate adjusting valve 54 is not provided.
- the steam of almost the same flow rate flows into all the steam passages (compartments), joins and flows out from the outlet hole to the steam supply pipe 27 on the downstream side.
- the steam that flows out of the steam is time-mixed to suppress fluctuations in wetness. This will be explained below.
- V the total flow rate of steam that flows into this steam fluctuation suppressing device through the steam supply pipe 27, and the volume ratio of the n steam passages from the first to the nth is 1: 2: 3:
- the steam that has flowed into all the steam passages at the same time flows out after each different time, and merges and mixes at the outlet holes.
- the steam that has flowed into the steam fluctuation suppressing device is effectively time-diffused and the wetness fluctuation of the steam is suppressed.
- the volume ratio of the steam passages is an integer ratio, but it is not limited to a powerful configuration, and an arbitrary volume ratio can be selected. Also, if necessary, some of the steam passages have the same volume.
- the tank 50 of the steam fluctuation suppressing device described above is not limited to a cylindrical shape.
- various shapes such as a polygonal cylindrical shape and a spherical shape can be adopted.
- the cylindrical partition walls 51 forming the compartments in the tank 50 are arranged concentrically, but the invention is not limited to such a configuration and may be arranged eccentrically.
- the cross-sectional shape of each steam passage need not be uniform along the steam flow direction. Enlarged and contracted passages may bend or meander. It is not limited to the steam fluctuation suppressing device 45 shown in FIG. 9A, and various other suitable configurations can be adopted as the steam fluctuation suppressing device.
- a plurality of steam passages (compartments) 57 are formed by partitioning the inside of the tank 55 by a plurality of horizontal partition walls 56 spaced vertically. Is. Horizontal partition walls 56 are arranged at equal intervals, and all compartments 57 have almost the same volume.
- Each compartment 57 has an inlet hole 52 at one end and an outlet hole 58 at the other end. The inlet hole 52 and the outlet hole 58 are not opposed to each other, and the outlet hole 58 is formed at a position away from the central axis of the inlet hole 52.
- the formation of the outlet hole 58 at a position where the central axial force of the inlet hole 52 also deviates is not limited to the steam fluctuation suppressing device 46 of FIG. 10, but also to the compartment tank shown in other drawings. Can be applied.
- the compartment 57 is not limited to the forceful structure defined by the horizontal partition wall 56.
- the compartment 57 may be partitioned by a partition wall extending in the vertical direction to form a grid pattern or a honeycomb shape in the vertical and horizontal directions. You may be divided into. In addition, it is divided radially like the cross section of citrus fruits. May be.
- the connection between the steam fluctuation suppressing device 46 and the upstream steam supply pipe 27 is the same as that shown in Fig. 9A.
- the steam fluctuation suppressing device 46 is branched from the upstream steam supply pipe 27 and connected to each of the plurality of inlet holes 52. And a flow rate adjusting valve 54 installed in the branch pipe.
- the flow rate of the steam flowing into each compartment 57 is made different by adjusting the opening degree of the flow rate adjusting valve 54.
- the downstream steam supply pipe 27 is branched and connected to a plurality of outlet holes 58. Vapor flowing out of compartment 57 with a time difference begins to mix in the integrated steam supply pipe 27 section. Therefore, a mixer or stirrer may be installed in this integrated piping section to facilitate steam mixing! /.
- the inflowing steam is effectively time-diffused and the wetness fluctuation of the steam is suppressed.
- the vapors flowing into the compartments are made different in volume from each other.
- the flow rate may be almost the same. In this case, it is not necessary to install a flow control valve at the inlet. Even in such a steam fluctuation suppressing device, the flowing steam is effectively time-diffused and the wetness fluctuation of the steam is suppressed.
- the steam fluctuation suppressing device is not limited to the one in which a plurality of compartments are formed in one tank as shown in FIGS. 9A and 10, and is composed of a plurality of independent containers. May be good.
- FIG. 11 shows a steam fluctuation suppressing device 47 composed of a plurality of independent containers 59 in this way.
- Each container 59 constitutes a compartment (steam passage), and all have almost the same volume.
- Each container 59 has an inlet hole 52 formed at the lower end (which may be the upper end or the side surface), and a vapor outlet hole 58 formed at the upper end (which may be the lower end or the side surface).
- the inlet holes 52 are the same as those shown in FIGS. 9A and 10, and the upstream steam supply pipe 27 is branched and connected to each of the plurality of inlet holes 52.
- Each branch pipe is provided with a flow control valve 54. By adjusting the opening degree of the flow rate adjusting valve 54, the flow rate of the steam flowing into each compartment 59 is made different.
- Outlet hole 58 is the same as shown in Figure 10
- the downstream steam supply pipe 27 is branched and connected to the plurality of outlet holes 58. Then, the steam flowing out of the compartment 59 with a time difference starts to mix in the portion of the integrated downstream steam supply pipe 27. Therefore, a mixer or stirrer may be installed in this integrated steam supply pipe 27 to facilitate steam mixing.
- this steam fluctuation suppressing device 47 the flow-in steam is effectively mixed with time difference, and the wetness fluctuation of the steam is suppressed.
- each steam passage is composed of an independent container, the installation work of the partition wall for partitioning the compartment can be omitted, and the manufacturing becomes easy.
- a steam fluctuation suppressing device having a plurality of independent containers 59 as steam passages as shown in FIG. 11, for example, the volume of each container is different from each other, and the flow rate of steam flowing into each container is changed. Almost the same. In that case, it is not necessary to install a flow control valve on the inlet side. Even with such a steam fluctuation suppressing device, the time-varying mixing of the flowing steam is performed, and the fluctuation of the wetness of the steam is suppressed.
- the shape of the container 59 is not limited, and various shapes such as a cylindrical shape, a polygonal cylindrical shape, and a spherical shape can be employed. Since each steam passage also constitutes an independent container force, the volume of the container can be easily varied. For example, pipes having different diameters or pipes having different lengths can be formed in each container.
- the steam fluctuation suppressing device 48 shown in FIGS. 12A and 12B is configured by binding containers 59 together as shown. Except for the fact that a plurality of containers 59 are bundled in a compact manner V, the configuration is almost the same as that of the steam fluctuation suppressing device 47 shown in FIG. 11. Therefore, the same members as those in FIG. Detailed description is omitted.
- This steam fluctuation suppressing device 48 can save installation space.
- the power generation facility shown in FIG. 13 is the power generation facility shown in FIG. 6 provided with the aforementioned steam fluctuation suppressing device 45 (46, 47, 48).
- This power generation facility is the same as the power generation facility shown in FIG. 6 except that the steam fluctuation suppressing device 45 is provided in the steam supply pipe 27. Therefore, components other than the steam fluctuation suppressing device 45 are denoted by the same reference numerals as those in FIG.
- the power generation facility shown in FIG. 14 is obtained by arranging the aforementioned steam fluctuation suppressing device 45 (46, 47, 48) with respect to the power generation facility of FIG.
- a steam fluctuation suppressing device 45 is disposed in the steam supply pipe 27 upstream of the branch point between the first steam supply pipe 33 and the second steam supply pipe 34 and downstream of the flow rate adjusting valve 28.
- a steam fluctuation suppression device 45 is installed in the power generation equipment shown in Fig. 7, except that a steam fluctuation suppression device 45 is installed. Therefore, components other than the steam fluctuation suppressing device 45 are denoted by the same reference numerals as in FIG.
- the saturated steam whose fluctuation in wetness is suppressed by passing through the steam fluctuation suppressing device 45, is discharged from the exhaust heat recovery boiler 13 in the steam drum 26 downstream of the first steam pipe 33. It is mixed with saturated steam with stable wetness. Therefore, the superheater 25 and the auxiliary burner 30 for steam overheating located on the downstream side are also stabilized in the operation state.
- the heating device 32 downstream of the second steam supply pipe 34 converts the saturated steam, in which the wetness fluctuation is suppressed by the steam fluctuation suppressing device 45, into superheated steam, the operation state thereof is stabilized.
- the heat medium mixing device 11 and the 13 auxiliary partitions 30 of the exhaust heat recovery boiler are installed in all the power generation facilities described above. It is not always necessary to install these. However, by installing the heat medium mixing device 11 in addition to the heat medium heating device 10, the temperature variation suppression effect of the heat medium can be further improved, or the auxiliary banner 30 can be installed in addition to the steam variation suppression device 45. This improves the effect of suppressing fluctuations in the vapor state. Therefore, it is preferable to install the heat medium mixing device 11 or the auxiliary banner 30 as an auxiliary.
- the various heating medium heating devices 10, 38, 39, and 41 (FIGS. 2 to 5B) described above are not only installed as a single unit, but also a plurality of the same or different types of them can be connected in series or They may be installed side by side.
- the various steam fluctuation suppression devices 45 to 48 described above (Fig. 9 Each of A to FIG. 12B may be installed as a single unit, or a plurality of the same or different types may be installed in series or in parallel.
- a combined power generation facility using a gas turbine and a steam turbine is taken as an example.
- the heat medium supply facility 12 is not limited to a combined power generation facility using a gas turbine in particular. It can also be applied to steam turbine power generation without using a gas turbine. In addition to these power generation facilities, the present invention can also be applied to facilities that cannot avoid temperature fluctuations of the heat medium.
- the heat collecting device the one using the above-described parabolic trough-type reflector 4a is exemplified, but not limited to the configuration, the heat collecting device using a reflector other than the novolic trough-type is used. A device or a so-called tower-type concentrated heat collecting device can also be used.
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Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/376,758 US8468827B2 (en) | 2006-08-10 | 2006-10-20 | Solar thermal electric power generation system and heating medium supply system |
| EP06812074A EP2058515A1 (en) | 2006-08-10 | 2006-10-20 | Solar heat power generation facility and heat medium supply facility |
| EGNA2007050442 EG24683A (en) | 2006-08-10 | 2007-05-02 | Solar thermal electric power generation system andheating medium supply system |
| IL196768A IL196768A (en) | 2006-08-10 | 2009-01-28 | Solar thermal electric power generation system and heating medium supply system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006-218330 | 2006-08-10 | ||
| JP2006218330A JP4322902B2 (ja) | 2006-08-10 | 2006-08-10 | 太陽熱発電設備および熱媒体供給設備 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007074570A1 true WO2007074570A1 (ja) | 2007-07-05 |
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ID=38217796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2006/320906 Ceased WO2007074570A1 (ja) | 2006-08-10 | 2006-10-20 | 太陽熱発電設備および熱媒体供給設備 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8468827B2 (ja) |
| EP (1) | EP2058515A1 (ja) |
| JP (1) | JP4322902B2 (ja) |
| EG (1) | EG24683A (ja) |
| IL (1) | IL196768A (ja) |
| MA (1) | MA30702B1 (ja) |
| WO (1) | WO2007074570A1 (ja) |
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| CN102159797B (zh) * | 2008-07-18 | 2015-04-08 | 联邦快递公司 | 能源生产方法 |
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| CN102216613A (zh) * | 2008-09-17 | 2011-10-12 | 西门子聚集太阳能有限公司 | 太阳热能发电设施 |
| WO2010032238A3 (en) * | 2008-09-17 | 2010-06-03 | Siemens Concentrated Solar Power Ltd. | Solar thermal power plant |
| WO2010118276A3 (en) * | 2009-04-10 | 2011-02-17 | Victory Energy Operations LLC | Generation of steam from solar energy |
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| US20120167873A1 (en) * | 2009-07-08 | 2012-07-05 | Areva Solar, Inc. | Solar powered heating system for working fluid |
| JP2011038412A (ja) * | 2009-08-07 | 2011-02-24 | Ihi Corp | 蒸気噴射ガスタービン発電装置 |
| CN102884317A (zh) * | 2010-05-06 | 2013-01-16 | 西门子公司 | 太阳能热电站设备的太阳能电站部分和具有用于载热介质和工质的太阳能收集器面的太阳能热电站设备 |
| WO2013098945A1 (ja) * | 2011-12-27 | 2013-07-04 | 川崎重工業株式会社 | 太陽熱発電設備 |
| JP2016520786A (ja) * | 2013-04-02 | 2016-07-14 | ティーアイジーアイ エルティーディー. | インラインで加熱される太陽熱ストレージコレクタ |
| CN108518249A (zh) * | 2018-06-12 | 2018-09-11 | 匡亚剑 | 一种竖直排列式汽轮发电机 |
| CN108518249B (zh) * | 2018-06-12 | 2023-12-12 | 匡亚剑 | 一种竖直排列式汽轮发电机 |
| US20210364193A1 (en) * | 2019-02-14 | 2021-11-25 | Ihi Corporation | Vapor supply device and drying system |
| US12359848B2 (en) * | 2019-02-14 | 2025-07-15 | Ihi Corporation | Vapor supply device and drying system |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2058515A1 (en) | 2009-05-13 |
| IL196768A0 (en) | 2009-11-18 |
| US8468827B2 (en) | 2013-06-25 |
| JP2008039367A (ja) | 2008-02-21 |
| IL196768A (en) | 2012-03-29 |
| MA30702B1 (fr) | 2009-09-01 |
| EG24683A (en) | 2010-05-04 |
| US20100175365A1 (en) | 2010-07-15 |
| JP4322902B2 (ja) | 2009-09-02 |
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