WO2010084525A1 - Système hybride de génération d'énergie - Google Patents

Système hybride de génération d'énergie Download PDF

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Publication number
WO2010084525A1
WO2010084525A1 PCT/JP2009/000215 JP2009000215W WO2010084525A1 WO 2010084525 A1 WO2010084525 A1 WO 2010084525A1 JP 2009000215 W JP2009000215 W JP 2009000215W WO 2010084525 A1 WO2010084525 A1 WO 2010084525A1
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Prior art keywords
steam
turbine
water
supply system
power generation
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PCT/JP2009/000215
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English (en)
Japanese (ja)
Inventor
岸部忠晴
中野晋
白岩弘行
岩井康
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株式会社日立製作所
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Priority to PCT/JP2009/000215 priority Critical patent/WO2010084525A1/fr
Publication of WO2010084525A1 publication Critical patent/WO2010084525A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
    • 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
    • Y02E20/14—Combined heat and power generation [CHP]

Definitions

  • the present invention relates to a hybrid power generation system including a gas turbine and a fuel cell.
  • a fuel cell is basically a system that generates electricity by the reaction of hydrogen and oxygen, and the reaction product is water. Unlike a gas turbine or a reciprocating engine that generates power using a thermal cycle, a fuel cell is a system that directly generates power using a chemical reaction, and thus has a significantly higher power generation efficiency than a gas turbine.
  • compressed air which is a working medium
  • fuel in a combustor and burned to raise the temperature and temperature.
  • the working medium is heated in the combustor. -Some or all of the temperature rise is performed using the heat of reaction caused by the chemical reaction in the fuel cell.
  • SOFC solid oxide fuel cell
  • a high-temperature type having an operating temperature of 900 ° C. to 1000 ° C. has been developed in the past, but in recent years, a type called an intermediate temperature operating SOFC having an operating temperature of about 600 ° C. to 800 ° C. has been studied and developed. ing.
  • This medium temperature operation SOFC can improve operability such as (1) expansion of material options such as using inexpensive metal materials for cell laminated separators, and (2) shortening of start-up time by using metal separators with good thermal conductivity. It has advantages such as being possible.
  • the present invention provides a gas turbine and a fuel cell that can improve the power generation output and increase the efficiency of the turbine by using a large amount of water generated by the fuel cell in a hybrid power generation system of a fuel cell and a gas turbine. It aims to provide a hybrid power generation system.
  • the above-described problem is a steam generator that generates steam using the exhaust gas of the gas turbine as a heat source, and a reaction product of the fuel cell from the exhaust gas of the gas turbine.
  • a water recovery device that recovers water, a condensed water supply system that supplies water recovered by the water recovery device to the steam generator, and a steam that is communicated with the steam generator and generates steam generated by the steam generator.
  • a hybrid power generation system of a gas turbine and a fuel cell water generated by the fuel cell is recovered, steam is generated from the recovered water using exhaust heat of the gas turbine, and the generated steam is generated.
  • 1 is a system diagram showing a hybrid power generation system of a gas turbine and a fuel cell according to a first embodiment of the present invention.
  • 1 is a configuration diagram of a fuel cell according to a first embodiment of the present invention.
  • the system diagram which showed the hybrid electric power generation system of the gas turbine and fuel cell by the 2nd Embodiment of this invention.
  • the system diagram which showed the hybrid electric power generation system of the gas turbine and fuel cell by the 3rd Embodiment of this invention.
  • FIG. 1 is a diagram showing a system configuration of a hybrid power generation system according to a first embodiment of the present invention. *
  • the hybrid power generation system includes a compressor 2 that sucks, compresses, and discharges the atmosphere 1 and a regenerative heat exchange that introduces and heats the compressor discharge air 3 discharged from the compressor 2.
  • a fuel cell 7 that generates electricity by an electrochemical reaction between the regenerator 4 and the outlet air 5 of the regenerative heat exchanger 4 and a cell fuel 6 such as hydrogen or natural gas supplied from a fuel tank (not shown),
  • a part or all of the high temperature gas 8 generated when the battery 7 generates electricity is mixed with a fuel 9 such as natural gas supplied from a fuel tank (not shown) as necessary, and burned.
  • a combustor 10 that generates the combustion gas 11, a turbine 12 that is rotationally driven by the expansion force of the combustion gas 11 discharged from the combustor 10; a rotor 58 that connects the turbine 12 and the compressor 2; Connect and turbine And a power generator 13 driven by the power generation by the second rotational force.
  • the compressor 2 is rotationally driven by the rotational force of the turbine 12.
  • the regenerative heat exchanger 4 described above introduces a turbine outlet exhaust gas 14 which is a turbine exhaust gas discharged from the turbine 12 as a heat source, and performs heat exchange between the turbine outlet exhaust gas 14 and the compressor discharge air 3, Heating of the compressor discharge air 3 and heat recovery of the turbine outlet exhaust gas 14 are performed.
  • FIG. 2 is a diagram showing a configuration of the fuel cell 7 according to the present embodiment. Note that the same parts as those in the previous figure are denoted by the same reference numerals, and description thereof will be omitted (the same applies to the subsequent figures). *
  • hydrogen may not be directly used as a cell fuel, but may be produced by reforming a hydrocarbon-based fuel such as natural gas to produce hydrogen.
  • the fuel cell 7 of this embodiment includes a battery unit 17 having an anode unit 15 and a cathode unit 16.
  • a battery unit 17 having an anode unit 15 and a cathode unit 16.
  • other components such as the reforming section and the preheater are omitted for simplification.
  • a cell fuel 6 reformed by a reforming unit (not shown) provided in the fuel cell 7 is supplied to the anode unit 15, and a cathode unit 16 is connected to the regenerative heat exchanger 4 for regeneration.
  • Air containing oxygen (regenerative heat exchanger outlet air 5) is supplied from the heat exchanger 4.
  • electric power 21 is generated by a chemical reaction between the battery fuel 6 and the air 5 supplied to the anode part 15 and the cathode part 16, respectively.
  • high-temperature gas for example, about 600 to 1000 degrees
  • water fuel cell wastewater
  • part of the water is sent to the reforming unit through the reforming moisture supply path 601 (fuel recycle line) to generate heat generated in the fuel cell.
  • reforming moisture supply path 601 fuel recycle line
  • the remaining moisture is vaporized by the heat of chemical reaction, and is contained in the high temperature gas 8 and supplied to the combustor 10.
  • the regeneration heat exchanger exhaust gas 22 that is the turbine exhaust gas discharged from the regeneration heat exchanger 4 is introduced, and steam is generated from the condensed water using the regeneration heat exchanger exhaust gas 22 as a heat source.
  • a steam generator exhaust gas 24 that is a turbine exhaust gas discharged from the steam generator 23
  • a water recovery device 25 that recovers moisture contained in the turbine exhaust gas
  • a water recovery device 25 And a chimney 34 for releasing the exhaust gas 33, which is a turbine exhaust gas, into the atmosphere.
  • the water recovery device 25 includes a heat exchanger 26 that cools the exhaust gas and condenses moisture contained in the exhaust gas, and a water storage unit 27 that stores condensed condensed water.
  • a heat exchanger 26 that cools the exhaust gas and condenses moisture contained in the exhaust gas
  • a water storage unit 27 that stores condensed condensed water.
  • a fin tube type heat exchanger or a shell and tube type heat exchanger is used for the heat exchanger 26 .
  • water such as factory effluent or the air can be used in an area where there is no water. *
  • a condensed water supply system 31 is connected to the water reservoir 27 of the water recovery device 25.
  • the condensed water supply system 31 is also connected to the steam generator 23, and the condensed water stored in the water reservoir 27 flows down the condensed water supply system 31 and is supplied to the steam generator 23.
  • the steam generator 23 generates steam by performing heat exchange between the condensed water supplied from the water recovery device 25 and the regenerative heat exchanger exhaust gas 22 via the condensed water supply system 31, and generates heat from the turbine exhaust gas. It is a device to collect.
  • the steam generator 23 is connected to a steam supply system 32, and the steam supply system 32 communicates with a steam injector (not shown) provided in the combustor 10. *
  • the steam generated by the steam generator 23 is introduced into the combustor 10 through the steam supply system 32, and is injected and mixed into the hot gas 8 flowing down inside the combustor 10 by the steam injector.
  • the air 1 is sucked and pressurized by the compressor 2 to generate compressed air, and then the generated compressed air is sent to the regenerative heat exchanger 4 communicating with the compressor 2.
  • Turbine exhaust gas discharged from the turbine 12 is introduced into the regenerative heat exchanger 4, and compressed air (compressor discharge air 3) sent to the regenerative heat exchanger 4 and high-temperature turbine exhaust gas discharged from the turbine 12.
  • Heat exchange is performed with the (turbine outlet exhaust gas 14), and the temperature of the compressed air is increased to a temperature necessary for the operation of the fuel cell 7. By this heat exchange, the thermal energy of the exhaust gas of the turbine is recovered in the power generation system through the compressed air.
  • a gas turbine cycle in which the regenerative heat exchanger 4 is provided and heat energy is recovered from the exhaust gas of the turbine by heat exchange with compressed air is referred to as a regenerative cycle. High efficiency.
  • the compressed air (regenerative heat exchanger outlet air 5) after heat exchange with the exhaust gas of the turbine 12 is introduced into the battery unit 17 of the fuel cell 7.
  • the compressed air is introduced into the cathode portion 16 of the battery portion 17 and then chemically reacts with the fuel sent to the anode portion 15 to generate electric power 21.
  • the exhaust gas generated at the anode and the cathode by the chemical reaction is heated by the reaction heat generated by the chemical reaction, and becomes high-temperature gas (fuel cell exhaust (for example, about 600 to 1000 degrees)) 8 and is discharged from the battery unit 17. .
  • fuel cell exhaust for example, about 600 to 1000 degrees
  • the hybrid power generation system of the present invention does not employ a hybrid with a fuel cell. Power generation efficiency is high compared to gas turbine systems.
  • a part or all of the hot gas 8 sent from the fuel cell 7 to the combustor 10 is mixed with the fuel 9 supplied from a fuel tank (not shown) in the fuel device 10 as necessary, and burned. After being heated, it is fed into the turbine 12.
  • the high-temperature gas 8 (combustion gas 11) sent to the turbine 12 flows down as the working medium of the turbine 12 while accelerating and expanding in the turbine 12, and rotates the turbine 12.
  • the high temperature gas 8 contains a large amount of water vapor, the mass is increased, and compared with a gas turbine system that does not contain steam in the working medium, the power generation output and power generation efficiency of the turbine. Is expensive.
  • the high-temperature gas after rotating the turbine 12 becomes exhaust gas (turbine outlet exhaust gas 14) and is sent to the regenerative heat exchanger 4.
  • the heat energy of the exhaust gas is recovered in the hybrid power generation system by heat exchange with the compressed air, and the temperature of the exhaust gas decreases.
  • the exhaust gas is sent to the steam generator 23 to exchange heat with the condensed water in the steam generator 23, steam is generated, the heat of the exhaust gas is recovered, and the exhaust gas temperature decreases.
  • the exhaust gas that has exchanged heat with the condensed water is then sent to the water recovery device 25.
  • the temperature of the exhaust gas further decreases by exchanging heat with the refrigerant in the heat exchanger 26, the moisture contained in the exhaust gas is condensed, and is collected in the water reservoir 27 as condensed water. .
  • the exhaust gas from which moisture has been recovered is then released from the chimney 34 to the atmosphere.
  • the water recovered by the water recovery device 25 is introduced into the steam generator 23 via the condensed water supply system 31, and is vaporized by the heat of the exhaust gas to become steam.
  • the regeneration heat exchanger 4, the steam generator 23, and the water recovery device 25 recover the thermal energy from the exhaust gas in the hybrid power generation system. High efficiency.
  • the steam generated by the steam generator 23 flows down the steam supply system 32 connected to the steam generator 23, is introduced into the combustor 10 of the gas turbine, and is combusted from the steam injector provided in the combustor 10. It is injected into the working medium flowing down.
  • the thermal energy of the exhaust gas of the turbine 12 is recovered in the working medium of the turbine 12 that drives the generator 13, and the mass of the working medium of the turbine 12 that drives the generator 13 increases. Power generation output and power generation efficiency are improved.
  • the discharge air 3 can be preheated by the regenerative heat exchanger 4, an auxiliary combustor for heating the compressor discharge air 3 is not required, and the pressure ratio of the compressor is set to the temperature of the discharge air. It is possible to set the optimum pressure ratio regardless of the gas turbine efficiency and maintain the gas turbine efficiency at the optimum value. Further, by recovering a certain amount of heat from the exhaust gas by the regenerative heat exchanger 4, the exhaust gas temperature in the water recovery device 25 can be set to an optimum temperature for water recovery.
  • This medium-temperature operation SOFC can expand material options such as (1) using inexpensive metal materials for cell laminated separators, and (2) operations such as shortening startup time by using metal separators with good thermal conductivity. (3) It is possible to improve the system reliability, extend the service life, and reduce the cost by reducing the heat resistance requirements of the heat exchanger and piping.
  • the hybrid power generation system of a medium temperature operation SOFC and gas turbine having an operation temperature of about 600 ° C. to 800 ° C. has a gas turbine exhaust temperature of about 400 ° C. to 500 ° C., and is a hybrid of a conventional high temperature operation SOFC and gas turbine.
  • the exhaust gas temperature discharged from the turbine is higher than that of the power generation system. Therefore, the conventional hybrid power generation system with a medium temperature operation SOFC has lower power generation efficiency than a hybrid power generation system with a high temperature type SOFC of about 1000 ° C.
  • the present invention it is possible to improve the power generation output and the efficiency of power generation by the turbine, so that the power generation efficiency can be improved even in a hybrid power generation system of a medium temperature operation SOFC and a gas turbine.
  • water generated in large quantities by a chemical reaction in the fuel cell can be used as water for steam spraying, so that while improving the power generation output and the power generation efficiency of the power generation by the turbine,
  • the running cost (water supply cost) of water for steam spraying can be reduced, and the system is also economical.
  • a part of the steam generated by the steam generator 23 is used as process steam without being introduced into the gas turbine to generate electricity and heat. It is good also as a generation system.
  • FIG. 3 is a diagram showing a system configuration of a hybrid power generation system according to the second embodiment of the present invention. A second embodiment will be described with reference to FIG.
  • the difference from the first embodiment is that the steam turbine 35, the generator 36 connected to the steam turbine 35 and generating electric power with the driving force of the steam turbine 35, the steam turbine 35 and the steam generator 23, and the steam A steam supply system 37 for supplying the steam generated by the generator 23 to the steam turbine 35, and supplying the steam generated by the steam generator 23 to the steam turbine 35 via the steam supply system 37.
  • the generator 36 is used as a working medium 35 and collects electric power. Other points are the same as those of the first embodiment, and a description thereof will be omitted.
  • the fuel cell waste water is recovered, and the steam generated by using the heat of the turbine exhaust gas is introduced into the separately installed steam turbine 35 without returning to the gas turbine as in the first embodiment.
  • the power generation efficiency of the entire system is improved.
  • the same effect as that of the first embodiment can be obtained without changing the gas turbine system, such as addition of a steam injection mechanism to the combustor 10 of the gas turbine or modification of the turbine 12 or the like. is there.
  • FIG. 4 is a diagram showing a system configuration of a hybrid power generation system according to the third embodiment of the present invention. A third embodiment of the present invention will be described with reference to FIG.
  • a sprayer 41 for spraying water to the intake air flowing down in the flow path is provided in the intake air intake flow path 59 of the compressor, and the compressed air flow path communicates with the compressor outlet and the regenerative heat exchanger 4.
  • a sprayer 42 for spraying water on the compressed air 3 flowing down in the flow path 60 is provided at 60.
  • the condensed water supply system 31 is branched into a steam water supply system 39 and a humidification water supply system 40.
  • the steam water supply system 39 communicates with the steam generator 23, and the humidification water supply system 40 is further branched into an intake humidification water supply system 44 and a compressed air humidification water supply system 45.
  • the intake humidification water supply system 44 is connected to the sprayer 41, and the compressed air humidification water supply system 45 is connected to the sprayer 42.
  • the steam water supply system 39 is a flow path for guiding a part of the condensed water supplied from the water recovery device 25 to the steam generator 23.
  • the humidification water supply system 40 is a flow path for guiding the remaining condensed water supplied from the water recovery device 25 to the intake humidification water supply system 44 and the compressed air humidification water supply system 45.
  • the intake humidification water supply system 44 is for guiding a part of the condensed water supplied from the humidification water supply system 40 to the sprayer 41.
  • the compressed air humidification water supply system 45 is for guiding the remaining condensed water supplied from the humidification water supply system 40 to the sprayer 42. Further, the humidification water supply system 40 has an upstream of the condensed water flow direction.
  • a control valve 46, a water treatment device 48, and a pump 43 are provided in this order from the side toward the downstream side.
  • the control valve 46 is a valve for adjusting the amount of condensed water flowing through the steam water supply system 39 and the humidification water supply system 40.
  • the water treatment device 48 includes a reverse osmosis membrane and the like, and removes impurities in the condensed water.
  • the pump 43 is for increasing the pressure of the condensed water supplied from the water recovery device 25 to the humidifying water supply system 40 and pumping it to the sprayers 41 and 42.
  • the intake humidification water supply system 44 is provided with a control valve 47.
  • the control valve 47 is a valve for adjusting the distribution of the amount of condensed water flowing through the intake humidification water supply system 44 and the compressed air humidification water supply system 45.
  • the condensed water recovered by the water recovery device 25 flows down the condensed water supply system 31, branches to the steam supply system 39 and the humidifying water supply system 40, and further flows down the humidifying water supply system 40. Then, the air is branched into an intake humidification water supply system 44 and a compressed air humidification water supply system 45 and led to the sprayer 41 and the sprayer 42.
  • the distribution adjustment of the amount of condensed water sent to the steam water supply system 39, the intake humidification water supply system 44, and the compressed air humidification water supply system 45 is performed for each of steam injection, intake spray, and compressed air spray to the combustor 10. This is done by controlling the opening degree of the regulating valves 46 and 47 in consideration of the contribution to the improvement of the power generation output and the improvement of the reliability.
  • the adjustment valve 46 is installed in the humidification water supply system 40. However, even if the adjustment valve 46 is installed in the compressed air humidification supply system 45, the steam water supply system 39 and the intake humidification water supply Distribution adjustment of the amount of condensed water sent to the system
  • an orifice plate having a fixed hole diameter may be installed instead of the valve 46 and the valve 47 to adjust the water distribution in advance.
  • the condensed water guided to the sprayer 41 is sprayed as fine water droplets in the intake air via the sprayer 41.
  • the suction flow rate of the compressor 1 is increased while the temperature of the intake air (atmosphere 1) is lowered, and the driving power of the compressor 2 is reduced, thereby improving the efficiency. An effect is obtained.
  • the condensed water introduced to the sprayer 42 is sprayed as fine water droplets from the sprayer 42 into the compressed air discharge air so as to lower the temperature of the compressor discharge air 3 when evaporated by the high-temperature compressed discharge air.
  • the effect of improving efficiency is obtained by increasing the amount of heat recovered from the exhaust gas 14 at the turbine outlet by the regenerative heat exchanger 4.
  • the water generated by the fuel cell 7 is sprayed on the compressor intake air and the compressor discharge air, thereby reducing the compressor driving force and the amount of heat recovered by the regenerative heat exchanger 4.
  • the same effect as in the first embodiment can be obtained, and further, the power generation output and the power generation efficiency by the turbine can be improved.
  • the power generation efficiency by the power generation output and the turbine can be improved while suppressing the water supply cost for humidifying the compressor intake air and the compressor discharge air.
  • the temperature of the regenerative heat exchanger outlet air 5, that is, the inlet of the fuel cell 7 is lowered, so that the operating temperature of the fuel cell 7 can be lowered.
  • FIG. 5 is a diagram showing a system configuration of a hybrid power generation system according to the fourth embodiment of the present invention. A fourth embodiment of the present invention will be described with reference to FIG.
  • the basic configuration is the same as that of the third embodiment described above, and the description of the same configuration as that of the third embodiment is omitted.
  • the difference from the third embodiment is that the steam generated by the steam generator 23 is supplied to a separately installed steam turbine 35 via a steam supply system 37 and used as a working medium for the turbine of the steam turbine 35. is there.
  • the water recovery device 25 supplies the steam generator 23 via the condensed water supply system 31 and the steam water supply system 39, and uses the heat of the exhaust gas from the gas turbine.
  • the steam is generated, and the steam is introduced into the steam turbine 35 through the steam supply system 37.
  • the steam turbine 35 is rotationally driven by the expansion force of the steam supplied from the steam supply system 37.
  • the steam turbine 35 is mechanically connected to a generator 36, transmits the driving force of the turbine to the generator, and rotates the generator 36 to generate power.
  • the condensed water recovered by the water recovery device 25 is guided to the sprayers 41 and 42 via the humidification water supply system 40, the intake humidification water supply system 44, and the compressed air humidification water supply system 45. , 42 is used to humidify the intake air 1 and the compressor discharge air.
  • the water generated by the fuel cell 7 is sprayed on the compressor intake air and the compressor discharge air, thereby reducing the compressor driving force and regenerating heat in the same manner as in the third embodiment.
  • the increase in the amount of heat recovered by the exchanger 4 can improve the power generation output and the efficiency of power generation by the turbine, and the same effects as in the second embodiment, such as no need to change the gas turbine system, can be obtained.
  • the temperature of the regenerative heat exchanger outlet air 5, that is, the inlet of the fuel cell 7 is lowered, so that the operating temperature of the fuel cell 7 can be lowered.
  • FIG. 6 is a diagram showing a system configuration of a hybrid power generation system according to the fifth embodiment of the present invention. A fifth embodiment of the present invention will be described with reference to FIG.
  • the basic configuration is the same as the configuration of the second embodiment described above, and the description of the same configuration as the configuration of the second embodiment is omitted.
  • the difference from the second embodiment is that it is connected to the steam turbine 35, connected to the condenser 49 for condensing the exhaust 38 after driving the steam turbine 35, and the condenser 49.
  • a water supply system 50 through which the sewed water circulates, a sprayer 56 that sprays the water condensed by the condenser onto the intake air of the compressor 2, and the water condensed by the condenser is sprayed on the compressor discharge air.
  • the sprayer 56 is provided in the air intake passage of the compressor 2, and the sprayer 57 is provided in the flow path of the compressor discharge air 3 flowing down from the compressor 2 to the regenerative heat exchanger 4.
  • the water supply system 50 is provided with a water treatment device 51 and a pump 52 in order from the upstream side to the downstream side in the water flow direction.
  • the intake humidification water supply system 53 is provided with a regulating valve 55.
  • the water treatment device is for removing impurities contained in water and includes a reverse osmosis membrane and the like.
  • the pump is for pumping the water condensed by the condenser to the sprayers 56 and 57.
  • the adjustment valve 55 is for adjusting the amount of water sent to the intake humidification water supply system 53 and the compressed air humidification water supply system 54.
  • the water condensed by the condenser 49 is supplied from the sprayers 56 and 57 to the intake air 1 and the compressor discharge air 3 through the water supply system 50, the intake humidification water supply system 53, and the compressed air humidification water supply system 54. Spray on.
  • the ratio of the amount of water sprayed to the intake air 1 and the compressor discharge air 3 is adjusted by controlling the opening degree of the adjustment valve 55.
  • the distribution adjustment of the amount of water sent to the intake humidifying water supply system 53 and the compressed air humidifying water supply system 54 takes into account the contribution to the improvement of the power generation output and the reliability of the intake spray and the compressed air spray, respectively. Adjusted.
  • the water generated by the fuel cell 7 is sprayed on the compressor intake air and the compressor discharge air, thereby humidifying the compressor intake air and the compressor discharge air. Compared with a hybrid power generation system that does not perform power generation, power generation output and efficiency can be improved.
  • the power generation output and the efficiency can be improved while suppressing the water supply cost for humidifying the compressor intake air and the compressor discharge air.
  • FIG. 7 is a diagram showing a system configuration of a hybrid power generation system according to the sixth embodiment of the present invention. A sixth embodiment of the present invention will be described with reference to FIG.
  • the fuel cell waste water is recovered by the water recovery device 25 and the condensed water 31 is supplied to the steam generator 23 using the exhaust heat of the gas turbine exhaust.
  • This is an example in which a large amount of wastewater generated from the fuel cell 7 is effectively utilized by generating steam 32 and injecting the steam 32 into the combustor 10 to improve the power generation output and efficiency of the gas turbine.
  • the difference from the first embodiment is that the steam generator 23 is installed on the upstream side of the gas turbine exhaust gas line from the regenerative heat exchanger 4, that is, the turbine outlet gas 14 is introduced into the steam generator 23, and the steam generator
  • the exhaust gas 61 is introduced into the regenerative heat exchanger 4, the compressor discharge air 3 is heated using the exhaust gas 61 as a heat source, and then the exhaust gas 62 is introduced into the water recovery device 25.
  • Other configurations are the same as those of the first embodiment described above, and the description of the same configurations as those of the first embodiment is omitted.
  • the steam generator 23 is installed on the higher temperature side, and the regenerative heat exchanger 4 is installed on the lower temperature side, so that a more superheated steam 32 is obtained.
  • the temperature on the gas side is lowered, and the reliability and life of the regenerative heat exchanger 4 can be improved.
  • the exhaust gas 61 whose temperature has been lowered by the steam generator 23 is introduced into the regenerative heat exchanger 4 instead of the turbine outlet gas 14, the temperature of the regenerative heat exchanger outlet air 5, that is, the inlet of the fuel cell 7 is lowered.
  • the operating temperature of the battery 7 can be lowered, and the three features of the medium temperature operating SOFC described above can be exhibited more.
  • the seventh embodiment will be described with reference to FIG.
  • the fuel cell waste water is recovered by the water recovery device 25, and the water 31 is supplied to the steam generator 23 using the exhaust heat of the gas turbine exhaust.
  • the power generation output and efficiency of the entire hybrid power generation system are improved, so that a large amount generated from the fuel cell 7 This is an example of effective use of wastewater.
  • the steam generator 23 is installed on the upstream side of the gas turbine exhaust gas line from the regenerative heat exchanger 4, that is, the turbine outlet gas 14 is introduced into the steam generator 23.
  • the exhaust gas 61 is introduced into the regenerative heat exchanger 4 and the compressor discharge air 3 is heated using the exhaust 61 as a heat source, the exhaust gas 62 is introduced into the water recovery device 25.
  • Other configurations are the same as those of the first embodiment described above, and the description of the same configurations as those of the first embodiment is omitted.
  • the steam generator 23 is installed on the higher temperature side and the regenerative heat exchanger 4 is installed on the lower temperature side, so that the overheated steam 37 is obtained and the output and efficiency of the steam turbine 35 are improved.
  • the temperature on the gas side of the heat exchanger 4 is lowered and the reliability and life of the regenerative heat exchanger 4 are improved.
  • the exhaust gas 61 whose temperature has been lowered by the steam generator 23 is introduced into the regenerative heat exchanger 4 instead of the turbine outlet gas 14, the temperature of the regenerative heat exchanger outlet air 5, that is, the inlet of the fuel cell 7 is lowered.
  • the operating temperature of the battery 7 can be lowered, and the three features of the medium temperature operating SOFC described above can be exhibited more.
  • the present invention is applicable to a hybrid power generation system with a gas turbine and a fuel cell.

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  • Fuel Cell (AREA)

Abstract

L'invention porte sur un système hybride de génération d'énergie qui est constitué d'une turbine à gaz et d'une pile à combustible, la puissance générée en sortie et le rendement de la génération d'énergie étant améliorés, tout en limitant les coûts de fonctionnement grâce à l'utilisation d'une grande quantité d'eau usée produite par la pile à combustible. Le produit de réaction d'une pile à combustible (7), c'est-à-dire de l'eau, est recueilli dans un dispositif (25) collecteur d'eau à partir du gaz d'échappement de la turbine à gaz et de la vapeur générée par un générateur de vapeur (23), en utilisant la chaleur d'échappement de la turbine à gaz introduite dans une turbine (12) afin d'entraîner un alternateur (13). Du fait que le système de génération d'énergie utilise un système hybride non seulement du point de vue de la chaleur, mais aussi du point de vue de l'utilisation de l'eau, la puissance et le rendement du système de génération d'énergie peuvent être améliorés. L'invention met en lumière en particulier un effet important dans un système hybride d'une pile à combustible à oxyde solide à température moyenne, dans lequel la température du gaz d'échappement de la turbine à gaz devient élevée. En outre, il est possible de limiter le coût nécessaire à l'approvisionnement en eau, du fait que l'eau n'est pas amenée de l'extérieur vers le système, mais que le système utilise plutôt les eaux usées de la pile à combustible, et de la vapeur peut être produite même dans un endroit ou dans une situation dans lesquels l'eau nécessaire à la production de vapeur ne peut pas être introduite.
PCT/JP2009/000215 2009-01-21 2009-01-21 Système hybride de génération d'énergie WO2010084525A1 (fr)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102088099A (zh) * 2010-12-16 2011-06-08 西安交通大学 一种固体氧化物燃料电池驱动的冷热电联供循环系统
CN106895383A (zh) * 2015-12-21 2017-06-27 考克利尔维修工程有限责任公司 冷凝余热回收蒸汽发生器
EP3184757A1 (fr) * 2015-12-21 2017-06-28 Cockerill Maintenance & Ingenierie S.A. Générateur de vapeur à récupération de chaleur de condensation
IT201700032837A1 (it) * 2017-03-24 2018-09-24 Angelo Minotti Dispositivo per la generazione di energia elettrica
WO2019223823A1 (fr) * 2018-05-22 2019-11-28 MTU Aero Engines AG Dispositif de traitement de gaz d'échappement, système d'entraînement d'aéronef, et procédé de traitement d'un flux de gaz d'échappement

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5413879A (en) * 1994-02-08 1995-05-09 Westinghouse Electric Corporation Integrated gas turbine solid oxide fuel cell system
JP2002305009A (ja) * 2001-04-04 2002-10-18 Ishikawajima Harima Heavy Ind Co Ltd 燃料電池複合発電装置
JP2004204849A (ja) * 2002-12-23 2004-07-22 General Electric Co <Ge> 冷却タービン一体型燃料電池ハイブリッド発電装置
JP2005098244A (ja) * 2003-09-26 2005-04-14 Hitachi Ltd ガスタービン設備
JP2005164081A (ja) * 2003-12-01 2005-06-23 Hitachi Ltd ガスタービンシステム
JP2006100223A (ja) * 2004-09-30 2006-04-13 Mitsubishi Heavy Ind Ltd 複合発電システム及び複合発電システムの運転方法
JP2008196399A (ja) * 2007-02-14 2008-08-28 Hitachi Ltd 高湿分利用ガスタービン

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5413879A (en) * 1994-02-08 1995-05-09 Westinghouse Electric Corporation Integrated gas turbine solid oxide fuel cell system
JP2002305009A (ja) * 2001-04-04 2002-10-18 Ishikawajima Harima Heavy Ind Co Ltd 燃料電池複合発電装置
JP2004204849A (ja) * 2002-12-23 2004-07-22 General Electric Co <Ge> 冷却タービン一体型燃料電池ハイブリッド発電装置
JP2005098244A (ja) * 2003-09-26 2005-04-14 Hitachi Ltd ガスタービン設備
JP2005164081A (ja) * 2003-12-01 2005-06-23 Hitachi Ltd ガスタービンシステム
JP2006100223A (ja) * 2004-09-30 2006-04-13 Mitsubishi Heavy Ind Ltd 複合発電システム及び複合発電システムの運転方法
JP2008196399A (ja) * 2007-02-14 2008-08-28 Hitachi Ltd 高湿分利用ガスタービン

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102088099A (zh) * 2010-12-16 2011-06-08 西安交通大学 一种固体氧化物燃料电池驱动的冷热电联供循环系统
CN106895383A (zh) * 2015-12-21 2017-06-27 考克利尔维修工程有限责任公司 冷凝余热回收蒸汽发生器
EP3184757A1 (fr) * 2015-12-21 2017-06-28 Cockerill Maintenance & Ingenierie S.A. Générateur de vapeur à récupération de chaleur de condensation
WO2017108355A1 (fr) * 2015-12-21 2017-06-29 Cockerill Maintenance & Ingenierie S.A. Générateur de vapeur à récupération de chaleur de condensation
BE1025812B1 (fr) * 2015-12-21 2019-10-25 Cockerill Maintenance & Ingenierie S.A. Generateur de vapeur a recuperation de chaleur à condensation
CN106895383B (zh) * 2015-12-21 2019-11-12 考克利尔维修工程有限责任公司 冷凝余热回收蒸汽发生器
IT201700032837A1 (it) * 2017-03-24 2018-09-24 Angelo Minotti Dispositivo per la generazione di energia elettrica
WO2018173012A1 (fr) * 2017-03-24 2018-09-27 Minotti Angelo Dispositif de micro-combustion pour la génération d'énergie électrique
US11435075B2 (en) 2017-03-24 2022-09-06 Angelo Minotti Micro-combustion device for the generation of electrical power
WO2019223823A1 (fr) * 2018-05-22 2019-11-28 MTU Aero Engines AG Dispositif de traitement de gaz d'échappement, système d'entraînement d'aéronef, et procédé de traitement d'un flux de gaz d'échappement
EP4276287A3 (fr) * 2018-05-22 2023-12-27 MTU Aero Engines AG Système d'entraînement d'aéronef avec dispositif de traitmenet de gaz d'échappement, et procédé de traitement d'un flux de gaz d'échappement

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