CN113389699A - Solar energy and wind energy and ammonia oxygen gas complementary circulation thermal power generation device - Google Patents
Solar energy and wind energy and ammonia oxygen gas complementary circulation thermal power generation device Download PDFInfo
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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
- F03G6/06—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
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/02—Preparation, purification or separation of ammonia
- C01C1/04—Preparation of ammonia by synthesis in the gas phase
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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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
- F01K13/00—General layout or general methods of operation of complete plants
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- 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
- F01K21/00—Steam engine plants not otherwise provided for
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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
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
- F01K25/10—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
- F01K25/103—Carbon dioxide
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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
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/32—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines using steam of critical or overcritical pressure
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- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas- turbine plants for special use
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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
- F02C6/18—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas- turbine plants for special use using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants
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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
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/006—Methods of steam generation characterised by form of heating method using solar heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B33/00—Steam-generation plants, e.g. comprising steam boilers of different types in mutual association
- F22B33/18—Combinations of steam boilers with other apparatus
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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
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
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- 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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- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- 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
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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Abstract
The solar wind energy and ammonia oxygen fuel gas complementary circulation thermal power generation device is characterized in that the groove type solar thermal power generation device is mechanically grafted in a semi-closed ammonia oxygen fuel gas Brayton thermal power generation system to realize complementary heat storage circulation power generation, meanwhile, water generated by ammonia oxygen combustion power generation is electrolyzed to produce hydrogen and oxygen by utilizing solar thermal power generation, wind power, photovoltaic and the like, oxygen is used for pure oxygen combustion power generation, hydrogen is mixed with recovered nitrogen to prepare ammonia, the ammonia is mixed with oxygen and hydrogen to be combusted, a Brayton generator set is driven to generate power, and green circulation power generation is realized under the support of renewable energy power. The invention belongs to the interdisciplinary technical field of solar thermal power generation and high-temperature thermochemistry.
Description
Technical Field
The solar wind energy and ammonia oxygen fuel gas complementary circulation thermal power generation device is characterized in that the groove type solar thermal power generation device is mechanically grafted in a semi-closed ammonia oxygen fuel gas Brayton thermal power generation system to realize complementary heat storage circulation power generation, meanwhile, water generated by ammonia oxygen combustion power generation is electrolyzed to produce hydrogen and oxygen by utilizing solar thermal power generation, wind power, photovoltaic and the like, oxygen is used for pure oxygen combustion power generation, hydrogen is mixed with recovered nitrogen to prepare ammonia, the ammonia is mixed with oxygen and hydrogen to be combusted, a Brayton generator set is driven to generate power, and green circulation power generation is realized under the support of renewable energy power. The invention belongs to the interdisciplinary technical field of solar thermal power generation and high-temperature thermochemistry.
Background
Global warming has become an important obstacle for restricting sustainable development of human society, and global average temperature rises due to emission of greenhouse gases, which causes frequent occurrence of extremely disastrous weather. Among the greenhouse gases, carbon dioxide is the most important greenhouse gas, and therefore international society has been making continuous efforts to reduce carbon dioxide emission. Under the background, hydrogen energy shows good development prospect as an alternative energy source. However, hydrogen is not economical to obtain, store, transport and use, and therefore ammonia, which is a substitute for hydrogen, is widely concerned. Ammonia is an intermediate of fertilizer ammonium bicarbonate and urea, and is completely standardized as a common chemical product; ammonia is also a good carrier of hydrogen, with a ton of liquid ammonia carrying 1.5 times as much hydrogen as liquid hydrogen, unlike hydrogen, which is readily liquefied at room temperature, meaning that it is easy to store and handle. China is the country with the largest ammonia yield and usage in the world, and accounts for about one third of the total world yield, but the acquisition of ammonia mainly depends on natural gas and coal. At present, 5 percent of natural gas in the world is used for producing ammonia, the natural gas is mainly produced by a Haber process, and three tons of carbon dioxide are discharged when one ton of ammonia is produced, which can be called carbon dioxide emission to a large household. Besides, ammonia is inflammable, but does not generate nitrogen oxides when being combusted in a pure oxygen environment, and can be completely used as a carbon-free fuel of a gas turbine or an engine. The utilization of ammonia as an energy source is actually a conversion form of hydrogen energy utilization, so an international test that ammonia is used as a fuel to directly drive an open gas Brayton device to generate electricity is still in progress, Japanese IHI adopts a mixed combustion mode, Ximen university advocates an ammonia evaporation direct combustion mode, Siemens adds an ammonia cracking device in front of a combustion chamber to decompose ammonia into a mixture of hydrogen and nitrogen and then enter the combustion chamber, and a semi-closed pure oxygen gas Brayton thermal power generation technical mode is not seen yet. The core of the technology for generating electricity by adopting semi-closed pure oxygen gas Brayton heat is that oxygen, ammonia or hydrogen are mixed and combusted, the product is water and nitrogen, the nitrogen is completely recycled through steam-water separation and is subjected to ammonia preparation with hydrogen generated by water electrolysis, and therefore the cyclic power generation of renewable energy and ammonia preparation is realized.
Disclosure of Invention
The invention aims to solve the technical problem of improving the technology for realizing complementation of solar energy, wind energy and semi-closed supercritical carbon dioxide pure oxygen gas Brayton thermal power generation provided by patents 201810585123.4, 20181043091.6 and 201911153233.4, fully utilizing the characteristic of mixed combustion of ammonia and oxygen to realize Brayton cycle thermal power generation, and mixing hydrogen prepared by electrolyzed water and nitrogen recovered by ammonia oxygen combustion to prepare ammonia so as to realize renewable energy source cycle power generation. The disclosures of the related patents 201510033477.4, 201611135864, X, wherein trough solar complementary thermal power generation is incorporated herein in its entirety.
The invention is realized by the following technical scheme:
the solar wind energy and ammonia oxygen fuel gas complementary circulation thermal power generation device comprises a groove type solar thermal power generation system, and is mainly divided into a thermal storage tank, a cold tank, a heat transfer medium and a medium tank by a light condensation array and a control device thereof and a single heat storage tank or double heat storage tanks; the steam Rankine cycle power generation system comprises an evaporator, a turbine, a generator set, a condenser, a pressure pump, a deaerating device and a water replenishing device; wind power systems, photovoltaic power generation systems; an open or semi-closed ammonia-oxygen gas Brayton thermal power generation system comprises a main turbine, an auxiliary turbine, a combustion chamber, a heat regenerator, a heat exchanger, an ammonia evaporator, a gas compressor, a condenser, a steam-water separation device, an oxygen storage tank, a hydrogen storage tank, a nitrogen bag and a water storage tank; a generator set; a pressure pump, a three-way valve; a liquid ammonia storage tank and an external interface; a control system is formed; a device for producing hydrogen and ammonia by electrolyzing water; the power rectifier configured for alternating current is connected with the electrolyzed water hydrogen production device and the power output and input equipment, and is characterized in that: the outlet of the groove type solar light-gathering array is connected with the inlet of a heat exchanger through a three-way valve, and is simultaneously connected with the inlet of a single heat storage tank, the corresponding outlet of the heat exchanger is connected with the inlet of the three-way valve, two outlets of the three-way valve are respectively connected with the inlet of the single heat storage tank and the inlet of an evaporator, the outlet of the single heat storage tank is respectively connected with the inlet of two pressure pumps through the three-way valve, wherein the outlet of the evaporator is connected with the inlet of the pressure pump, the outlet of the pressure pump is connected with one end of the three-way valve of the outlet of the single heat storage tank, the outlet of the other end of the three-way valve is connected with the inlet of the pressure pump, and the outlet of the pressure pump is connected with the inlet of the groove type solar light-gathering array, so that the photo-thermal conversion and the complementary heat storage cycle are completed; an outlet of the superheated steam end of the evaporator is sequentially connected with a steam turbine, a condenser, a pressure pump, a water replenishing three-way valve and an evaporator inlet, so that the steam Rankine cycle power generation is realized; the outlet of a gas compressor of the semi-closed ammonia-oxygen gas Brayton thermal power generation system is connected with a combustion chamber, the outlet of the combustion chamber is connected with the inlet of a main turbine, the main turbine and the turbine coaxially drive a power generator, the exhaust outlet of the main turbine is connected with the inlet of one end of a heat exchanger, the outlet of the heat exchanger is connected with the inlet of a condenser, the condensation outlet is connected with a steam-water separation device, and the outlet of the steam-water separation device is respectively connected with a water storage tank and a nitrogen steam pocket; the outlet of the nitrogen steam drum is connected with the inlet of the nitrogen storage tank, and the outlet of the nitrogen steam drum is connected with the ammonia preparation device; one end of the water storage tank is connected with an inlet of the heat exchanger through a pressure pump, corresponding outlets are respectively connected with an inlet of the gas compressor and an inlet of the ammonia evaporator, wherein one end of the gas compressor conveys pressurized high-temperature water vapor to be combusted together with high-temperature ammonia gas, oxygen and hydrogen in a combustion chamber to do work and generate electricity, the other end of the gas compressor outputs superheated steam to the ammonia evaporator, the ammonia gas input into the combustion chamber is ensured to be high-temperature evaporation gas, and an outlet of the ammonia evaporator and an exhaust gas outlet of the heat exchanger are jointly connected with an inlet of the condenser; cold energy generated by the ammonia evaporator when evaporating liquid ammonia is sent to the two condensers by the cold air blower through the cold air pipeline so as to improve the condensation efficiency; the other three inlets of the combustion chamber are respectively connected with an oxygen storage tank and a hydrogen storage tank through a controller, the other inlet is a high-temperature ammonia gas inlet, the inlet is connected with an outlet of an ammonia evaporator, the inlet of the ammonia evaporator is connected with a pressure pump and an ammonia gas storage tank, the inlet of the ammonia gas storage tank is respectively connected with an ammonia preparation tank and a liquid ammonia tank, an external liquid ammonia delivery interface is reserved in the liquid ammonia storage tank, or the outlet of the liquid ammonia storage tank is directly connected with the inlet of the pressure pump, and the outlet of the pressure pump is connected with the inlet of the liquid ammonia evaporator; an outlet at the exhaust port end of the heat exchanger is connected with a condenser and is used for steam-water separation, the separated nitrogen enters a nitrogen bag and is stored in a nitrogen storage tank, and the separated water is respectively connected with a water electrolysis hydrogen production device through a water storage tank and a pressure pump to produce hydrogen and oxygen and an inlet at the steam generation end of the heat exchanger; the prepared oxygen is connected with an oxygen storage tank, and the outlet of the oxygen storage tank is connected with a controller to a combustion chamber and is mixed with ammonia gas for combustion; the prepared hydrogen is respectively connected with an ammonia preparation device through a hydrogen storage tank, and is simultaneously connected with an inlet of a combustion chamber through a controller so as to assist in starting ammonia-oxygen combustion and realize a semi-closed supercritical ammonia-oxygen gas Brayton complementary thermal power generation cycle; the power supply rectifier receives power from solar energy, wind energy or other renewable energy sources or excess power of the power grid overload; the other end of the water storage tank is used for supplementing water for the steam Rankine thermal power generation device and cleaning water for the groove type solar light-gathering array;
the groove type solar thermal power generation system can adopt a two-tank heat storage mode, the inlet of a heat storage tank is connected with the outlet of a heat exchanger and a three-way valve, the outlet of the heat storage tank is connected with the inlet of an evaporator, the outlet of the evaporator is connected with a cold tank to a pressure pump, and the outlet of the pressure pump is connected with the inlet of a groove type light gathering array, so that photo-thermal, heat supplementing and heat storage circulation is completed; or the ammonia oxygen gas waste heat complementation and the light condensation array adopt a parallel mode; or the steam generator is connected with the heat exchanger in series, namely a steam generator is independently arranged in the heat exchanger, the inlet of the steam generator is connected with the outlet of the oil-gas steam generator, and the outlet of the steam generator is connected with the inlet of the steam turbine, so that the Rankine steam power generation efficiency is improved;
the inlet end of a gas compressor for open ammonia-oxygen gas Brayton power generation is used as an air inlet, the outlet end of the gas compressor is connected with a combustion chamber, the gas compressor is mixed with ammonia gas, oxygen gas and hydrogen gas for combustion and generates power by a main turbine through work done by the main turbine, the outlet of the main turbine is connected with the inlet of a heat exchanger, and the exhaust outlet of the heat exchanger is connected with a condenser until steam and water are separated; the other structures are the same as the semi-closed ammonia-oxygen gas Brayton heat power generation system;
another operational mode of this device is the electricity generation of semi-closed ammonia oxygen gas brayton cycle, does not set up slot type solar thermal power generation system in above-mentioned device promptly, but increases vice turbine power generation facility, its characterized in that: the water working medium from the water storage tank is connected with an inlet of a heat regenerator through a pressure pump, an outlet of the heat regenerator is connected with a gas compressor, the gas compressor mixes and combusts high-temperature high-pressure gas with ammonia, oxygen and hydrogen in a combustion chamber, the formed high-temperature high-pressure mixed gas directly drives a main turbine to do work for power generation, the high-temperature mixed gas discharged by the main turbine drives an auxiliary turbine to do work again for power generation, the exhaust gas of the high-temperature mixed gas enters a condenser and an ammonia evaporator through the heat regenerator respectively, the ammonia gas is ensured to be high-temperature gas by using waste heat so as to enter the combustion chamber to be mixed and combusted with the oxygen and the hydrogen, the ammonia evaporator and the outlet of the heat regenerator are connected with the inlet of the condenser together, the mixed water gas generated by condensation enters a steam-water separation device, the separated water enters the water storage tank, the separated nitrogen enters a nitrogen bag to be stored in a nitrogen storage tank, and then enters an ammonia preparation device to be mixed with the hydrogen to prepare the ammonia gas; one end of the water storage tank is connected with a pressure pump, the outlet of the pressure pump is respectively connected with the inlet of one end of a heat regenerator and the hydrogen production device by water electrolysis, hydrogen produced by water electrolysis is sent to the hydrogen storage tank, the hydrogen is respectively sent to the ammonia production device to produce ammonia gas and enters the combustion chamber to support combustion, high-temperature gas passing through the heat regenerator enters the gas compressor, and is mixed and combusted with ammonia, oxygen and hydrogen in the combustion chamber, and finally, the renewable energy source cyclic power generation is realized.
1) The groove type solar thermal power generation system can be replaced by a tower type, Fresnel type or disc type solar thermal power generation system;
2) the heat storage tank is a filling type heat storage device, and the filler comprises ceramics, granite, basalt, igneous rock, quartzite or a mixture thereof; or the recovered metal smelting waste slag with higher heat conductivity coefficient, including iron slag, steel slag, aluminum slag and copper slag, is manufactured, molded and placed in the heat storage tank; or a molded high temperature resistant cement heat storage device; or molten salts stored in ceramic or metal containers;
3) the heat transfer medium is heat conduction oil, or high-temperature silicone oil, or low-crystallization-point molten salt;
4) the water electrolysis hydrogen production device is a solid oxide electrolysis hydrogen production device (SOEC); or a polymer (SPE) hydrogen plant; or a high-temperature water electrolysis hydrogen production device; or an alkaline water electrolysis hydrogen production device.
The device has the greatest technical characteristics that the semi-closed ammonia oxygen gas Brayton thermal power generation system is fully utilized to provide a complementary heat source for the groove type solar thermal power generation system, and water generated by the system is directly used for steam power generation water supplement and condenser cleaning. Meanwhile, the ammonia is prepared by the aid of the nitrogen recovered by pure oxygen combustion and the hydrogen prepared by renewable energy, and the nitrogen is prepared without a high-energy-consumption air separation machine, so that zero-carbon-emission cyclic thermal power generation mainly using the renewable energy is finally realized. The other characteristic is that hydrogen is selected as combustion-supporting gas for starting, because the ignition point of ammonia is higher, the hydrogen is ignited in the combustion chamber first, the combustion of ammonia is accelerated by the heat release of oxyhydrogen combustion, thereby the combustion performance of ammonia fuel is improved, once the ignition is started to maintain the combustion room temperature of ammonia, the hydrogen can be stopped from being used, and the consumption of hydrogen is very limited. Although the solar thermal power generation system is not arranged in the simplified second operation mode, the auxiliary turbine is added for generating power, so that the improvement of the overall economic benefit is facilitated.
Drawings
FIG. 1 is a schematic view of the solar energy, wind energy and ammonia oxygen gas complementary thermal power generation operation mode of the present invention
FIG. 2 is a schematic view of the solar energy and wind energy and ammonia oxygen gas complementary thermal power generation operation mode II of the present invention
FIG. 3 is a schematic diagram of the Brayton heat power generation operation mode of the semi-closed ammonia-oxygen gas of the present invention
Wherein: 1 groove type solar thermal power generation light-gathering array, 2 evaporator, 3 single heat storage tank, 4 heat exchanger, 5 three-way valve, 6 air cooling pipeline, 7 wind power generation or photovoltaic power generation system, 8 electrolyzed water hydrogen production device, 9 ammonia preparation device, 10 oxygen tank, 11 combustion chamber, 12 heat regenerator, 13 liquid ammonia tank, 14 water storage tank, 15 nitrogen bag, 16 nitrogen tank, 17 compressor, 18 main turbine, 19 condenser, 20 steam-water separation device, 21 steam Rankine turbine, 22 pressure pump, 23 auxiliary turbine, 24 hydrogen tank, 25 air cooler, 26 ammonia tank, 27 power rectifier, 28 heat storage tank, 29 cold tank, 30 ammonia evaporator, 31 controller
Detailed Description
An outlet of the groove type solar light-gathering array 1 is connected with an inlet of a heat exchanger 4 through a three-way valve 5, and is simultaneously connected with an inlet of a single heat storage tank 3, an outlet of the corresponding heat exchanger 4 is connected with an inlet of the three-way valve 5, two outlets of the three-way valve 5 are respectively connected with an inlet of the single heat storage tank 3 and an inlet of an evaporator 2, an outlet of the single heat storage tank 3 is respectively connected with inlets and outlets of two pressure pumps 22 through the three-way valve 5, wherein an outlet of the evaporator 2 is connected with an inlet of the pressure pump 22, an outlet of the pressure pump 22 is connected with one end of the three-way valve 5 of the outlet of the single heat storage tank 3, an outlet of the other end of the three-way valve 5 is connected with an inlet of the pressure pump 22, and an outlet of the pressure pump 22 is connected with an inlet of the groove type solar light-gathering array 1, so that photo-thermal conversion and complementary heat storage circulation are completed; the outlet of the superheated steam end of the evaporator 2 is sequentially connected with a steam turbine 21, a condenser 19, a pressure pump 5, a water replenishing three-way valve 5 and the inlet of the evaporator 2, so that the Rankine cycle power generation of steam is realized; an outlet of a compressor 17 of the semi-closed ammonia-oxygen gas Brayton thermal power generation system is connected with a combustion chamber 11, an outlet of the combustion chamber 11 is connected with an inlet of a main turbine 18, the main turbine 18 coaxially drives a generator, an outlet of the main turbine 18 is connected with an inlet of one end of a heat exchanger 4, an outlet of the heat exchanger 4 is connected with an inlet of a condenser 19, an outlet of the condenser 19 is connected with a steam-water separation device 20, and outlets of the steam-water separation device 20 are respectively connected with a water storage tank 14 and a nitrogen steam drum 15; the outlet of the nitrogen steam drum 15 is connected with the inlet of a nitrogen storage tank 16, and the outlet of the nitrogen steam drum is connected with an ammonia preparation device 9; one end of the water storage tank 14 is connected with a steam inlet of the heat exchanger 4 through a pressure pump 22, corresponding outlets are respectively connected with an inlet of the air compressor 17 and an inlet of the ammonia evaporator 30, wherein one end of the air compressor 17 conveys pressurized high-temperature steam to be combusted together with high-temperature ammonia gas, oxygen gas and hydrogen gas in the combustion chamber 11 to apply work and generate power, the other end outputs superheated steam to the ammonia evaporator 30 to ensure that the ammonia gas input into the combustion chamber 11 is high-temperature evaporation gas, and an outlet of the ammonia evaporator 30 and an exhaust gas outlet of the exhaust gas of the heat exchanger 4 are jointly connected with; cold energy generated by the ammonia evaporator 30 when evaporating liquid ammonia is sent to the two condensers 19 by the cold air blower 25 through the cold air pipeline 6 so as to improve condensation efficiency; the other three inlets of the combustion chamber 11 are respectively connected with an oxygen storage tank 10 and a hydrogen storage tank 24 through a controller 31, the other inlet is a high-temperature ammonia gas inlet, the inlet is connected with an outlet of an ammonia evaporator 30, the inlet of the ammonia evaporator 30 is connected with a pressure pump 22 and an ammonia gas tank 26, the inlet of the ammonia gas tank 26 is respectively connected with an ammonia preparation device 9 and a liquid ammonia storage tank 13, the liquid ammonia storage tank 13 is reserved with an external liquid ammonia delivery interface, or the outlet of the liquid ammonia storage tank 13 is directly connected with the inlet of a pressure pump 22, and the outlet of the pressure pump 22 is connected with the inlet of the liquid ammonia evaporator 30; an outlet at the exhaust port end of the heat exchanger 4 is connected with a condenser 19 and a steam-water separation device 20, separated nitrogen enters a nitrogen bag 15 to a nitrogen storage tank 16 for storage, and separated water is respectively connected with an electrolytic water hydrogen production device 8 through a water storage tank 14 and a pressure pump 22 for hydrogen production and oxygen production and an inlet at the steam generation end of the heat exchanger 4; the prepared oxygen is connected with an oxygen storage tank 10, and the outlet of the oxygen storage tank 10 is connected with a controller 31 to a combustion chamber 11 and is mixed and combusted with ammonia gas; the prepared hydrogen is respectively connected with the ammonia preparation device 9 through a hydrogen storage tank 24, and is simultaneously connected with an inlet of a combustion chamber 11 through a controller 31 to assist in starting ammonia-oxygen combustion and realize a semi-closed supercritical ammonia-oxygen gas Brayton complementary thermal power generation cycle; the power rectifier 27 receives power from solar, wind or other renewable energy sources, or grid overload excess power; the other end of the water storage tank 14 is used for supplementing water for the steam Rankine thermal power generation device 21;
the groove type thermal power generation system can adopt a two-tank heat storage mode, the inlet of a thermal storage tank 28 is connected with the outlet of a heat exchanger 4 and a three-way valve 5, the outlet of the thermal storage tank 28 is connected with the inlet of an evaporator 2, the outlet of the evaporator 2 is connected with a cold tank 29 to a pressure pump 22, and the outlet of the pressure pump 22 is connected with the inlet of a groove type light gathering array 1, so that the photo-thermal, heat supplementing and heat storage circulation is completed;
an inlet end of a gas compressor 17 for open ammonia-oxygen gas Brayton power generation is used as an air inlet, an outlet end of the gas compressor is connected with a combustion chamber 11, the gas compressor is mixed with ammonia gas, oxygen gas and hydrogen gas for combustion and generates power by acting through a main turbine 18, an outlet of the main turbine 18 is connected with an inlet of a heat exchanger 4, and an exhaust outlet of the heat exchanger 4 is connected with a condenser 19 till steam-water separation 20; the other structures are the same as the semi-closed ammonia-oxygen gas Brayton heat power generation system;
another mode of operation of this device is the electricity generation of semi-closed ammonia oxygen gas brayton cycle, does not set up slot type solar thermal power generation system in above-mentioned device promptly, but increases vice turbine 23 power generation facility, its characterized in that: the water medium from the water storage tank 14 is connected with the inlet of the heat regenerator 12 through a pressure pump 22, the outlet of the heat regenerator 12 is connected with a compressor 17, the compressor 17 mixes and burns high-temperature high-pressure gasified steam with ammonia, oxygen and hydrogen in a combustion chamber 11, the formed high-temperature high-pressure mixed gas directly drives a main turbine 18 to do work and generate power, the high-temperature mixed gas discharged by the main turbine 18 drives an auxiliary turbine 23 to do work and generate power again, the exhaust gas enters the condenser 19 and the ammonia evaporator 30 through the heat regenerator 12 respectively, the waste heat is utilized to ensure that the ammonia gas becomes high-temperature gas, so as to enter a combustion chamber 11 to be mixed and combusted with oxygen and hydrogen, an ammonia evaporator 30 and an outlet of a heat regenerator 12 are connected with an inlet of a condenser 19 together, a mixed gas generated by condensation enters a steam-water separation device 20, separated water enters a water storage tank 14, and separated nitrogen enters a nitrogen bag 15 to a nitrogen storage tank 16 for storage, and then enters an ammonia preparation device 30 to be mixed with the hydrogen to prepare ammonia gas; one end of a water storage tank 14 is connected with a pressure pump 22, the outlet of the pressure pump 22 is respectively connected with the inlet of one end of a heat regenerator 12 and a water electrolysis hydrogen production device 8, hydrogen produced by water electrolysis is sent to a hydrogen storage tank, hydrogen is respectively sent to an ammonia production device 9 to be mixed with nitrogen to produce ammonia gas and enter a combustion chamber 11 to support combustion, high-temperature gas passing through the heat regenerator 12 enters a gas compressor 17, and is mixed and combusted with ammonia, oxygen and hydrogen in the combustion chamber, and finally renewable energy source cycle power generation is realized.
The present invention is not limited to the above-described exemplary embodiments, but rather, should be construed within the scope of the invention as defined in the appended claims.
Claims (4)
1. The solar wind energy and ammonia oxygen fuel gas complementary circulation thermal power generation device comprises a groove type solar thermal power generation system, and is mainly divided into a thermal storage tank, a cold tank, a heat transfer medium and a medium tank by a light condensation array and a control device thereof and a single heat storage tank or double heat storage tanks; the steam Rankine cycle power generation system comprises an evaporator, a turbine, a generator set, a condenser, a pressure pump, a deaerating device and a water replenishing device; wind power systems, photovoltaic power generation systems; an open or semi-closed ammonia-oxygen gas Brayton thermal power generation system comprises a main turbine, an auxiliary turbine, a combustion chamber, a heat regenerator, a heat exchanger, an ammonia evaporator, a gas compressor, a condenser, a steam-water separation device, an oxygen storage tank, a hydrogen storage tank, a nitrogen bag and a water storage tank; a generator set; a pressure pump, a three-way valve; a liquid ammonia storage tank and an external interface; a control system is formed; a device for producing hydrogen and ammonia by electrolyzing water; the power rectifier configured for alternating current is connected with the electrolyzed water hydrogen production device and the power output and input equipment, and is characterized in that: the outlet of the groove type solar light-gathering array is connected with the inlet of a heat exchanger through a three-way valve, and is simultaneously connected with the inlet of a single heat storage tank, the corresponding outlet of the heat exchanger is connected with the inlet of the three-way valve, two outlets of the three-way valve are respectively connected with the inlet of the single heat storage tank and the inlet of an evaporator, the outlet of the single heat storage tank is respectively connected with the inlet of two pressure pumps through the three-way valve, wherein the outlet of the evaporator is connected with the inlet of the pressure pump, the outlet of the pressure pump is connected with one end of the three-way valve of the outlet of the single heat storage tank, the outlet of the other end of the three-way valve is connected with the inlet of the pressure pump, and the outlet of the pressure pump is connected with the inlet of the groove type solar light-gathering array, so that the photo-thermal conversion and the complementary heat storage cycle are completed; an outlet of the superheated steam end of the evaporator is sequentially connected with a steam turbine, a condenser, a pressure pump, a water replenishing three-way valve and an evaporator inlet, so that the steam Rankine cycle power generation is realized; the outlet of a gas compressor of the semi-closed ammonia-oxygen gas Brayton thermal power generation system is connected with a combustion chamber, the outlet of the combustion chamber is connected with the inlet of a main turbine, the main turbine and the turbine coaxially drive a power generator, the exhaust outlet of the main turbine is connected with the inlet of one end of a heat exchanger, the outlet of the heat exchanger is connected with the inlet of a condenser, the condensation outlet is connected with a steam-water separation device, and the outlet of the steam-water separation device is respectively connected with a water storage tank and a nitrogen steam pocket; the outlet of the nitrogen steam drum is connected with the inlet of the nitrogen storage tank, and the outlet of the nitrogen steam drum is connected with the ammonia preparation device; one end of the water storage tank is connected with an inlet of the heat exchanger through a pressure pump, corresponding outlets are respectively connected with an inlet of the gas compressor and an inlet of the ammonia evaporator, wherein one end of the gas compressor conveys pressurized high-temperature water vapor to be combusted together with high-temperature ammonia gas, oxygen and hydrogen in a combustion chamber to do work and generate electricity, the other end of the gas compressor outputs superheated steam to the ammonia evaporator, the ammonia gas input into the combustion chamber is ensured to be high-temperature evaporation gas, and an outlet of the ammonia evaporator and an exhaust gas outlet of the heat exchanger are jointly connected with an inlet of the condenser; cold energy generated by the ammonia evaporator when evaporating liquid ammonia is sent to the two condensers by the cold air blower through the cold air pipeline so as to improve the condensation efficiency; the other three inlets of the combustion chamber are respectively connected with an oxygen storage tank and a hydrogen storage tank through a controller, the other inlet is a high-temperature ammonia inlet, the inlet is connected with an outlet of an ammonia evaporator, an inlet of the ammonia evaporator is connected with a pressure pump and an ammonia storage tank, an inlet of the ammonia storage tank is respectively connected with an ammonia preparation device and a liquid ammonia storage tank, the liquid ammonia storage tank is reserved with an external liquid ammonia interface, or an outlet of the liquid ammonia storage tank is directly connected with an inlet of the pressure pump, and an outlet of the pressure pump is connected with an inlet of the liquid ammonia evaporator; an outlet at the exhaust port end of the heat exchanger is connected with a condenser and is used for steam-water separation, the separated nitrogen enters a nitrogen bag and is stored in a nitrogen storage tank, and the separated water is respectively connected with a water electrolysis hydrogen production device through a water storage tank and a pressure pump to produce hydrogen and oxygen and an inlet at the steam generation end of the heat exchanger; the prepared oxygen is connected with an oxygen storage tank, and the outlet of the oxygen storage tank is connected with a controller to a combustion chamber and is mixed with ammonia gas for combustion; the prepared hydrogen is respectively connected with an ammonia preparation device through a hydrogen storage tank, and is simultaneously connected with an inlet of a combustion chamber through a controller so as to assist in starting ammonia-oxygen combustion and realize a semi-closed supercritical ammonia-oxygen gas Brayton complementary thermal power generation cycle; the power supply rectifier receives power from solar energy, wind energy or other renewable energy sources or excess power of the power grid overload; the other end of the water storage tank is used for supplementing water for the steam Rankine thermal power generation device and cleaning water for the groove type solar light-gathering array;
1) the groove type solar thermal power generation system can be replaced by a tower type, Fresnel type or disc type solar thermal power generation system;
2) the heat storage tank is a filling type heat storage device, and the filler comprises ceramics, granite, basalt, igneous rock, quartzite or a mixture thereof; or the recovered metal smelting waste slag with higher heat conductivity coefficient, including iron slag, steel slag, aluminum slag and copper slag, is manufactured, molded and placed in the heat storage tank; or a molded high temperature resistant cement heat storage device; or molten salts stored in ceramic or metal containers;
3) the heat transfer medium is heat conduction oil, or high-temperature silicone oil, or low-crystallization-point molten salt;
4) the water electrolysis hydrogen production device is a solid oxide electrolysis hydrogen production device (SOEC); or a polymer (SPE) hydrogen plant; or a high-temperature water electrolysis hydrogen production device; or an alkaline water electrolysis hydrogen production device.
2. The solar wind energy and ammonia oxygen gas complementary cycle thermal power generation device of claim 1, wherein the trough solar thermal power generation system adopts a two-tank heat storage mode, and the device is characterized in that: the inlet of the thermal storage tank is connected with the outlet of the heat exchanger and the three-way valve, the outlet of the thermal storage tank is connected with the inlet of the evaporator, the outlet of the evaporator is connected with the cold tank to the pressure pump, and the outlet of the pressure pump is connected with the inlet of the groove type light-gathering array, so that the photo-thermal, heat-supplementing and heat-storing circulation is completed; or the ammonia oxygen gas waste heat complementation and the light condensation array adopt a parallel mode; or the steam generator is connected with the heat exchanger in series, namely, the steam generator is independently arranged in the heat exchanger, the inlet of the steam generator is connected with the outlet of the oil-gas steam generator, and the outlet of the steam generator is connected with the inlet of the steam turbine, so that the Rankine steam power generation efficiency is improved.
3. The solar-wind energy and ammonia-oxygen gas complementary cycle thermal power generation device of claim 1, which adopts an open ammonia-oxygen gas Brayton thermal power generation cycle, and is characterized in that: the inlet end of the gas compressor is an air inlet, the outlet end of the gas compressor is connected with a combustion chamber, the gas compressor is mixed and combusted with ammonia gas, oxygen gas and hydrogen gas and generates power by the work of a main turbine, the outlet of the main turbine is connected with the inlet of a heat exchanger, and the exhaust outlet of the heat exchanger is connected with a condenser until steam and water are separated; the other construction is the same as the semi-closed ammonia-oxygen gas Brayton heat power generation system.
4. The solar-wind energy and ammonia-oxygen gas complementary cycle thermal power generation device as claimed in claim 1, wherein another operation mode of the device is semi-closed ammonia-oxygen gas brayton cycle power generation, that is, a groove type solar thermal power generation system is not arranged in the device, but an auxiliary turbine power generation device is added, and the device is characterized in that: the water working medium from the water storage tank is connected with an inlet of a heat regenerator through a pressure pump, an outlet of the heat regenerator is connected with a gas compressor, the gas compressor mixes and combusts high-temperature high-pressure gas with ammonia, oxygen and hydrogen in a combustion chamber, the formed high-temperature high-pressure mixed gas directly drives a main turbine to do work for power generation, the high-temperature mixed gas discharged by the main turbine drives an auxiliary turbine to do work again for power generation, the exhaust gas of the high-temperature mixed gas enters a condenser and an ammonia evaporator through the heat regenerator respectively, the ammonia gas is ensured to be high-temperature gas by using waste heat so as to enter the combustion chamber to be mixed and combusted with the oxygen and the hydrogen, the ammonia evaporator and the outlet of the heat regenerator are connected with the inlet of the condenser together, the mixed water gas generated by condensation enters a steam-water separation device, the separated water enters the water storage tank, the separated nitrogen enters a nitrogen bag to be stored in a nitrogen storage tank, and then enters an ammonia preparation device to be mixed with the hydrogen to prepare the ammonia gas; one end of the water storage tank is connected with a pressure pump, the outlet of the pressure pump is respectively connected with the inlet of one end of a heat regenerator and the hydrogen production device by water electrolysis, hydrogen produced by water electrolysis is sent to the hydrogen storage tank, the hydrogen is respectively sent to the ammonia production device to produce ammonia gas and enters the combustion chamber to support combustion, high-temperature gas passing through the heat regenerator enters the gas compressor, and is mixed and combusted with ammonia, oxygen and hydrogen in the combustion chamber, and finally, the renewable energy source cyclic power generation is realized.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114853030A (en) * | 2022-05-07 | 2022-08-05 | 中国华能集团清洁能源技术研究院有限公司 | Solar ammonia production system and method |
| CN115234332A (en) * | 2022-06-17 | 2022-10-25 | 成都理工大学 | Comprehensive energy system based on carbon dioxide |
| CN115930215A (en) * | 2022-11-21 | 2023-04-07 | 上海慕帆动力科技有限公司 | Energy storage system based on oxyhydrogen combustion technology and operation method |
| WO2024002837A1 (en) * | 2022-07-01 | 2024-01-04 | Siemens Energy Global GmbH & Co. KG | System and method for producing ammonia |
| WO2024074268A1 (en) * | 2022-10-06 | 2024-04-11 | United Kingdom Research And Innovation | Ammonia reactor and methods |
| CN115234332B (en) * | 2022-06-17 | 2024-05-03 | 成都理工大学 | Comprehensive energy system based on carbon dioxide |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114853030A (en) * | 2022-05-07 | 2022-08-05 | 中国华能集团清洁能源技术研究院有限公司 | Solar ammonia production system and method |
| CN115234332A (en) * | 2022-06-17 | 2022-10-25 | 成都理工大学 | Comprehensive energy system based on carbon dioxide |
| CN115234332B (en) * | 2022-06-17 | 2024-05-03 | 成都理工大学 | Comprehensive energy system based on carbon dioxide |
| WO2024002837A1 (en) * | 2022-07-01 | 2024-01-04 | Siemens Energy Global GmbH & Co. KG | System and method for producing ammonia |
| WO2024074268A1 (en) * | 2022-10-06 | 2024-04-11 | United Kingdom Research And Innovation | Ammonia reactor and methods |
| CN115930215A (en) * | 2022-11-21 | 2023-04-07 | 上海慕帆动力科技有限公司 | Energy storage system based on oxyhydrogen combustion technology and operation method |
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