CN112217230A - Fuel cell-gas turbine-wind energy-solar energy integrated power generation system - Google Patents
Fuel cell-gas turbine-wind energy-solar energy integrated power generation system Download PDFInfo
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- CN112217230A CN112217230A CN202011020275.3A CN202011020275A CN112217230A CN 112217230 A CN112217230 A CN 112217230A CN 202011020275 A CN202011020275 A CN 202011020275A CN 112217230 A CN112217230 A CN 112217230A
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- 239000000446 fuel Substances 0.000 title claims abstract description 87
- 238000010248 power generation Methods 0.000 title claims abstract description 64
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 76
- 239000007789 gas Substances 0.000 claims abstract description 75
- 239000001301 oxygen Substances 0.000 claims abstract description 19
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 19
- 230000003197 catalytic effect Effects 0.000 claims abstract description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 15
- 239000001257 hydrogen Substances 0.000 claims description 13
- 229910052739 hydrogen Inorganic materials 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 11
- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 9
- 238000007084 catalytic combustion reaction Methods 0.000 claims description 7
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- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
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- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 238000002485 combustion reaction Methods 0.000 description 5
- 239000002028 Biomass Substances 0.000 description 4
- 239000000295 fuel oil Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 239000010902 straw Substances 0.000 description 3
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- 231100000719 pollutant Toxicity 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
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- 238000004146 energy storage Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/26—Starting; Ignition
- F02C7/268—Starting drives for the rotor, acting directly on the rotor of the gas turbine to be started
- F02C7/275—Mechanical drives
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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
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/007—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with means for converting solar radiation into useful energy
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/70—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
- H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
- H01M8/0618—Reforming processes, e.g. autothermal, partial oxidation or steam reforming
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
- H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
- H01M8/0625—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material in a modular combined reactor/fuel cell structure
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/28—The renewable source being wind energy
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/30—The power source being a fuel cell
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/40—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation wherein a plurality of decentralised, dispersed or local energy generation technologies are operated simultaneously
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- 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
- Y02E10/44—Heat exchange systems
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- 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
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- 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
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a fuel cell-gas turbine-wind energy-solar energy comprehensive power generation system, which is characterized in that: the system comprises four major systems, namely a fuel cell power generation system comprises a methane supply device, a methane pre-reformer, a hydrogen-oxygen fuel cell, a transformer and a catalytic combustor; the hydrogen-oxygen fuel cell comprises an anode channel, an anode, a cathode and a cathode channel; the trough type solar light-gathering and heat-collecting system comprises a trough type solar light-gathering heat collector, a rotating server and a first heat exchanger; the gas turbine power generation system comprises a starting motor, a gas compressor, a heat exchanger II, a turbine and a generator; the wind power generator system comprises a wind power generator; the four systems have four energy conversion mechanisms, are mutually interwoven for cyclic utilization, take the advantages of fuel cell power generation, combined power generation of the fuel cell and the gas turbine and comprehensive utilization of wind energy and solar energy into consideration, and simultaneously avoid the defects of low fuel utilization rate, single energy utilization mode and the like.
Description
Technical Field
The invention belongs to the field of comprehensive utilization of fuel cells, gas turbines, wind energy and solar energy, and particularly relates to a fuel cell-gas turbine-wind energy-solar energy comprehensive power generation system.
Background
The traditional way of utilizing fuel is to directly release energy through combustion, and the chemical energy of the fuel is converted into heat energy. The fuel has the advantages of direct combustion: the utilization mode is simple and direct, the technical requirement is not high, and the defects are that the fuel utilization rate is low, a large amount of carbon dioxide and other harmful gases can be generated, and the environment is damaged. With the severe shortage of fossil energy and the rapid decline of environmental quality, how to fully utilize energy becomes the focus of current research.
The traditional gas turbine power depends on a combustion chamber to generate high-temperature and high-pressure gas, but the combustion chamber has harsh operating environment, high requirements on the heat resistance and the like of materials, extremely high manufacturing precision, periodic maintenance, high economic cost and lower efficiency. Therefore, the fuel cell is used for replacing the combustion chamber, so that the economic cost of the gas turbine can be effectively reduced, and the work efficiency of the gas turbine is improved.
If renewable energy sources such as solar energy and the like can be fully utilized, the consumption of fossil energy can be greatly saved. The trough type solar concentrating collector is a device capable of converting solar energy into heat energy; a wind power generator is a device that can convert wind energy into electric energy. The large-scale trough type solar concentrating collector is mainly applied to industrial power generation, and the small-scale trough type solar concentrating collector is mainly applied to individual users such as families. How to combine renewable energy sources such as solar energy with a traditional power system and maximize energy utilization is an important problem facing the world.
The existing energy utilization technology lacks an energy storage technology which simultaneously takes into account the advantages of fuel cell power generation, combined power generation of the fuel cell and the gas turbine and comprehensive utilization of wind energy and solar energy, and simultaneously avoids the defects of low fuel utilization rate, single energy utilization mode and the like.
Disclosure of Invention
Aiming at least one of the defects or improvement requirements of the prior art, the invention provides a fuel cell-gas turbine-wind energy-solar energy comprehensive power generation system which simultaneously takes advantages of fuel cell power generation, combined power generation of the fuel cell and the gas turbine and comprehensive utilization of wind energy and solar energy into consideration and avoids the defects of low fuel utilization rate, single energy utilization mode and the like.
To achieve the above object, according to one aspect of the present invention, there is provided a fuel cell-gas turbine-wind power-solar power integrated generation system, characterized in that: the system comprises a fuel cell power generation system, a gas turbine power generation system, a trough type solar light-gathering and heat-collecting system and a wind power generator system;
the fuel cell power generation system comprises a methane supply device, a methane pre-reformer, a hydrogen-oxygen fuel cell, a transformer and a catalytic combustor; the hydrogen-oxygen fuel cell comprises an anode channel, an anode, a cathode and a cathode channel;
the trough type solar light-gathering and heat-collecting system comprises a trough type solar light-gathering heat collector, a rotating server and a first heat exchanger;
the gas turbine power generation system comprises a starting motor, a gas compressor, a heat exchanger II, a turbine and a generator;
the wind power generator system comprises a wind power generator;
the methane supply device is connected with the methane pre-reformer through a methane circulation pipeline, the methane pre-reformer is connected with an anode channel of the hydrogen-oxygen fuel cell through a hydrogen circulation pipeline, the anode channel is provided with an anode, the end part of the anode is provided with a solid oxide electrolyte, the electrolyte is connected with a cathode, the end part of the cathode is connected with a cathode channel, and the cathode channel is connected with an air circulation pipeline;
the external circuit of the hydrogen-oxygen fuel cell is connected with a transformer, and the transformer raises the voltage generated by the external circuit of the hydrogen-oxygen fuel cell and finally transmits the voltage to a rotating servo of the trough type solar concentrating collector;
the cathode channel and the anode channel of the hydrogen-oxygen fuel cell are both connected with the catalytic combustion chamber through a tail gas discharge pipeline, and the catalytic combustion chamber is connected with the second heat exchanger;
the wind driven generator supplies power to a starting motor of a gas turbine power generation system, and the starting motor is used as starting power of the gas compressor and the turbine;
the air compressor heats air through a heat exchanger I of the middle groove type solar light-gathering heat-collecting system through a first branch of an air circulation pipeline and then flows to a cathode channel; the gas compressor firstly passes through a heat exchanger II of the gas turbine power generation system in the middle through a second branch of the air circulation pipeline to form high-temperature and high-pressure gas, and then drives the turbine to do work to drive the generator to generate power.
Preferably, the methane flow conduit is connected to the methane pre-reformer by a bayonet fitting.
Preferably, the air flow conduit is connected to the fuel cell cathode channels by a bayonet fitting.
Preferably, the hydrogen gas flow conduit is connected to the fuel cell anode by a bayonet fitting.
Preferably, the hydrogen circulation pipeline and the air circulation pipeline are sleeved with ceramic pipes to play a role in heat preservation and heat insulation.
Preferably, the hydrogen gas circulation pipe is cast of stainless steel material.
Preferably, the air circulation duct is cast of stainless steel material.
Preferably, the methane flow conduit is cast from a stainless steel material.
Preferably, the exhaust gas discharge pipeline is cast by stainless steel materials.
Preferably, a condensing lens of the trough type solar concentrating collector is made of mirror aluminum, and the heat collecting tube is made of glass-metal.
The above-described preferred features may be combined with each other as long as they do not conflict with each other.
Generally, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:
1. according to the fuel cell-gas turbine-wind energy-solar energy comprehensive power generation system, the fuel used by the fuel cell power generation system is methane, the methane can be generated by fermenting biomass such as crop straws, residual branches and leaves and the like, the existing fossil fuel is not consumed, and the resource saving effect can be achieved.
2. According to the fuel cell-gas turbine-wind energy-solar energy comprehensive power generation system, the electric energy generated by the wind power generator system can be used for supplying power to the starting motor of the gas turbine, so that the electric energy is saved; on the other hand, after the gas turbine is started, the electric energy generated by the fuel cell power generation system can supply power to the motor of the rotating servo of the trough type solar concentrating collector. Because, in order to make full use of the solar energy, the trough solar concentrator collector needs to track the sun, which requires a rotary servo. Therefore, the fuel cell power generation system meets the power consumption requirements of a gas turbine starting motor and a rotating server of the trough type solar concentrating collector on one hand, and saves electric energy; on the other hand, the electric energy generated by the fuel cell power generation system is not wasted.
3. The fuel cell-gas turbine-wind energy-solar energy comprehensive power generation system can realize modular application, and a small comprehensive power generation system can be expected to be widely popularized and applied in rural areas in China and provide electric energy for residential users; the medium-sized comprehensive power generation system can be used on ships, so that the emission of fuel oil tail gas pollutants can be reduced while fuel oil is saved; the large-scale comprehensive power generation system can be used for a power plant, at present, China still mainly generates electricity by fossil energy, the environmental pollution is increasingly serious, the fossil energy is urgent, and new energy can be reasonably utilized by the system to generate electric energy, save resources and protect the environment.
Drawings
FIG. 1 is a schematic diagram of a fuel cell-gas turbine-wind energy-solar energy integrated power generation system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of the operation principle of the fuel cell-gas turbine-wind energy-solar energy integrated power generation system according to the embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other. The present invention will be described in further detail with reference to specific embodiments.
As a preferred embodiment of the present invention, as shown in fig. 1-2, the present invention provides a fuel cell-gas turbine-wind energy-solar energy integrated power generation system, which comprises a fuel cell power generation system, a gas turbine power generation system, a trough type solar energy light-gathering and heat-collecting system and a wind power generator system.
The fuel cell power generation system comprises a methane supply device, a methane pre-reformer 13, a hydrogen-oxygen fuel cell, a transformer 9 and a catalytic combustor 5; the hydrogen-oxygen fuel cell comprises an anode channel 17, an anode 18, a cathode 19, and a cathode channel 7.
The trough type solar light-gathering and heat-collecting system comprises a trough type solar light-gathering heat collector 10, a rotary server and a first heat exchanger 11.
The gas turbine power generation system comprises a starting motor 1, a gas compressor 2, a second heat exchanger 16, a turbine 3 and a generator 4.
The wind power generator system comprises a wind power generator 20.
As shown in fig. 1, a methane supply device such as a methane tank is connected with a methane circulation pipeline 12, the right side of the methane circulation pipeline 12 is connected with a methane pre-reformer 13, the right end of the methane pre-reformer 13 is connected with a hydrogen circulation pipeline 15, the hydrogen circulation pipeline 15 is connected with an anode channel 17 of a hydrogen-oxygen fuel cell, the lower end of the anode channel 17 is connected with an anode 18, the lower end of the anode 18 is provided with a solid oxide electrolyte, the electrolyte is connected with a cathode 19, the lower end of the cathode 19 is connected with a cathode channel 7, the left end of the cathode channel 7 is connected with an air circulation pipeline I8, and the air circulation pipeline.
The external circuit of the oxyhydrogen fuel cell is connected with a transformer 9, the transformer 9 raises the voltage generated by the external circuit of the oxyhydrogen fuel cell and finally transmits the voltage to a rotary servo of the trough type solar concentrating collector 10. The right ends of a cathode channel 7 and an anode channel 17 of the oxyhydrogen fuel cell are both connected with a tail gas discharge pipeline 6, the tail gas discharge pipeline 6 is connected with a catalytic combustion chamber 5, and the catalytic combustion chamber 5 is connected with a second heat exchanger 16 at the upper end.
The wind driven generator 20 supplies power to a starting motor 1 of the gas turbine power generation system, the starting motor 1 is used as starting power of the gas compressor 2 and the turbine 3, and the gas compressor 2 is driven to operate after the turbine 3 operates normally.
A small part of air from the compressor 2 is heated by the first heat exchanger and then used for a cathode 19 of a fuel cell, the other part of air exchanges heat with high-temperature gas from the catalytic combustion chamber 5 by the second heat exchanger at the right end of the compressor 2 to form high-temperature and high-pressure gas, then the high-temperature and high-pressure gas is introduced into a turbine 3 at the right end of the second heat exchanger to do work, and finally the turbine 3 drives a generator 4 at the right end to generate electricity.
The condenser in the trough type solar concentrating collector 10 can collect solar energy and convert the solar energy into heat energy of liquid in the heat collecting pipe, and meanwhile, the trough type solar concentrating collector 10 is used in combination with the first heat exchanger 11 and is responsible for heating air flowing from the air compressor 2 to the cathode channel 7 of the fuel cell, so that the reaction rate of the fuel cell is improved.
The methane circulation pipeline 12 is connected with the methane pre-reformer 13 through a clamping sleeve joint, the first air circulation pipeline 8 is connected with the cathode channel 7 of the fuel cell through a clamping sleeve joint, and the hydrogen circulation pipeline 15 is connected with the anode channel 17 of the hydrogen-oxygen fuel cell through a clamping sleeve joint.
The outside of the hydrogen flow pipeline 15 and the air flow pipeline I8 is sleeved with a ceramic pipe, so that the functions of heat preservation and heat insulation are achieved.
The hydrogen flow pipeline 15, the first air flow pipeline 8, the methane flow pipeline 12 and the tail gas discharge pipeline 6 are all made of stainless steel materials through casting.
The condensing lens of the trough type solar concentrating collector is made of mirror aluminum material, and the heat collecting tube is made of glass-metal.
The four main energy conversion mechanisms of the present invention include:
firstly, biomass such as crop straws, residual branches and leaves and the like is fermented by a methane tank to generate methane, and the process converts the biomass energy into chemical energy, thereby effectively utilizing renewable energy and simultaneously not consuming fossil energy. This is the first energy conversion mechanism.
And in the second step, methane generates hydrogen through reforming reaction, and the hydrogen and the oxygen generate electrochemical reaction through a fuel cell to directly convert chemical energy into electric energy, so that the energy utilization rate is greatly improved. This is the second energy conversion mechanism.
And thirdly, absorbing solar energy to the maximum extent through a small-sized groove type solar energy concentrating collector capable of tracking the sun in real time, and converting the solar energy into heat energy for human use. This is the third energy conversion mechanism.
And fourthly, the wind power generator system can convert wind energy into electric energy for human use. This is the fourth energy conversion mechanism.
In summary, compared with the prior art, the scheme of the invention has the following significant advantages:
1. according to the fuel cell-gas turbine-wind energy-solar energy comprehensive power generation system, the fuel used by the fuel cell power generation system is methane, the methane can be generated by fermenting biomass such as crop straws, residual branches and leaves and the like, the existing fossil fuel is not consumed, and the resource saving effect can be achieved.
2. According to the fuel cell-gas turbine-wind energy-solar energy comprehensive power generation system, the electric energy generated by the wind power generator system can be used for supplying power to the starting motor of the gas turbine, so that the electric energy is saved; on the other hand, after the gas turbine is started, the electric energy generated by the fuel cell power generation system can supply power to the motor of the rotating servo of the trough type solar concentrating collector. Because, in order to make full use of the solar energy, the trough solar concentrator collector needs to track the sun, which requires a rotary servo. Therefore, the fuel cell power generation system meets the power consumption requirements of a gas turbine starting motor and a rotating server of the trough type solar concentrating collector on one hand, and saves electric energy; on the other hand, the electric energy generated by the fuel cell power generation system is not wasted.
3. The fuel cell-gas turbine-wind energy-solar energy comprehensive power generation system can realize modular application, and a small comprehensive power generation system can be expected to be widely popularized and applied in rural areas in China and provide electric energy for residential users; the medium-sized comprehensive power generation system can be used on ships, so that the emission of fuel oil tail gas pollutants can be reduced while fuel oil is saved; the large-scale comprehensive power generation system can be used for a power plant, at present, China still mainly generates electricity by fossil energy, the environmental pollution is increasingly serious, the fossil energy is urgent, and new energy can be reasonably utilized by the system to generate electric energy, save resources and protect the environment.
It will be appreciated that the embodiments of the system described above are merely illustrative, in that elements illustrated as separate components may or may not be physically separate, may be located in one place, or may be distributed over different network elements. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of the embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
In addition, it should be understood by those skilled in the art that in the specification of the embodiments of the present invention, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In the description of the embodiments of the invention, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description. Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the embodiments of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects.
However, the disclosed method should not be interpreted as reflecting an intention that: that is, the claimed embodiments of the invention require more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of an embodiment of this invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention, and not to limit the same; although embodiments of the present invention have been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The fuel cell-gas turbine-wind energy-solar energy comprehensive power generation system is characterized in that: the system comprises a fuel cell power generation system, a gas turbine power generation system, a trough type solar light-gathering and heat-collecting system and a wind power generator system;
the fuel cell power generation system comprises a methane supply device, a methane pre-reformer, a hydrogen-oxygen fuel cell, a transformer and a catalytic combustor; the hydrogen-oxygen fuel cell comprises an anode channel, an anode, a cathode and a cathode channel;
the trough type solar light-gathering and heat-collecting system comprises a trough type solar light-gathering heat collector, a rotating server and a first heat exchanger;
the gas turbine power generation system comprises a starting motor, a gas compressor, a heat exchanger II, a turbine and a generator;
the wind power generator system comprises a wind power generator;
the methane supply device is connected with the methane pre-reformer through a methane circulation pipeline, the methane pre-reformer is connected with an anode channel of the hydrogen-oxygen fuel cell through a hydrogen circulation pipeline, the anode channel is provided with an anode, the end part of the anode is provided with a solid oxide electrolyte, the electrolyte is connected with a cathode, the end part of the cathode is connected with a cathode channel, and the cathode channel is connected with an air circulation pipeline;
the external circuit of the hydrogen-oxygen fuel cell is connected with a transformer, and the transformer raises the voltage generated by the external circuit of the hydrogen-oxygen fuel cell and finally transmits the voltage to a rotating servo of the trough type solar concentrating collector;
the cathode channel and the anode channel of the hydrogen-oxygen fuel cell are both connected with the catalytic combustion chamber through a tail gas discharge pipeline, and the catalytic combustion chamber is connected with the second heat exchanger;
the wind driven generator supplies power to a starting motor of a gas turbine power generation system, and the starting motor is used as starting power of the gas compressor and the turbine;
the air compressor heats air through a heat exchanger I of the middle groove type solar light-gathering heat-collecting system through a first branch of an air circulation pipeline and then flows to a cathode channel; the gas compressor firstly passes through a heat exchanger II of the gas turbine power generation system in the middle through a second branch of the air circulation pipeline to form high-temperature and high-pressure gas, and then drives the turbine to do work to drive the generator to generate power.
2. The fuel cell-gas turbine-wind-solar hybrid power generation system of claim 1, wherein:
the methane circulation pipeline is connected with the methane pre-reformer through a clamping sleeve connector.
3. The fuel cell-gas turbine-wind-solar hybrid power generation system of claim 1, wherein:
the air circulation pipeline is connected with the cathode channel of the fuel cell through a clamping sleeve joint.
4. The fuel cell-gas turbine-wind-solar hybrid power generation system of claim 1, wherein:
the hydrogen circulation pipeline is connected with the anode of the fuel cell through a clamping sleeve joint.
5. The fuel cell-gas turbine-wind-solar hybrid power generation system of claim 1, wherein:
the outside of the hydrogen circulation pipeline and the outside of the air circulation pipeline are both sleeved with ceramic pipes, so that the functions of heat preservation and heat insulation are achieved.
6. The fuel cell-gas turbine-wind-solar hybrid power generation system of claim 1, wherein: the hydrogen circulation pipeline is made of stainless steel materials through casting.
7. The fuel cell-gas turbine-wind-solar hybrid power generation system of claim 1, wherein: the air circulation pipeline is made of stainless steel materials through casting.
8. The fuel cell-gas turbine-wind-solar hybrid power generation system of claim 1, wherein: the methane circulation pipeline is made of stainless steel materials through casting.
9. The fuel cell-gas turbine-wind-solar hybrid power generation system of claim 1, wherein: the tail gas exhaust pipeline is made of stainless steel materials through casting.
10. The fuel cell-gas turbine-wind-solar hybrid power generation system of claim 1, wherein: the condensing lens of the trough type solar concentrating collector is made of mirror aluminum, and the heat collecting tube is made of glass-metal.
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