CN105736267A - Complementary type supercritical carbon dioxide Braytom cycle power generation system and method - Google Patents
Complementary type supercritical carbon dioxide Braytom cycle power generation system and method Download PDFInfo
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- CN105736267A CN105736267A CN201610207195.6A CN201610207195A CN105736267A CN 105736267 A CN105736267 A CN 105736267A CN 201610207195 A CN201610207195 A CN 201610207195A CN 105736267 A CN105736267 A CN 105736267A
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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
- F03G6/02—Devices for producing mechanical power from solar energy using a single state working fluid
- F03G6/04—Devices for producing mechanical power from solar energy using a single state working fluid gaseous
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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
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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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Abstract
The invention discloses a complementary type supercritical carbon dioxide Braytom cycle power generation system and method. The power generation system comprises a solar collector, a boiler, a turbine power generation system, a high-temperature heat regenerator, a low-temperature heat regenerator, a pre-cooler, a main compressor and a re-compressor. According to the power generation system and method, power is generated through complementation of solar energy and fossil energy, and the fossil energy consumption ratio is relatively small.
Description
Technical field
The present invention relates to a kind of electricity generation system and method, be specifically related to a kind of complementary type supercritical carbon dioxide Brayton cycle electricity generation system and method.
Background technology
Solar energy is a kind of inexhaustible clean energy resource, although relatively inexpensive thermal storage and energy accumulation can be adopted in theory to solve the problem that solar energy the diurnal distribution is uneven, but when continuous overcast and rainy weather such as grade and solar radiation seasonal variety, hold over system will be difficult to meet heating demand.And fossil energy just can supplement solar-heating not enough or continuously depletion of YANG light time blank, make electricity generation system can really realize the operating of long-term stability.
Not enough or the continuous fossil energy without solar irradiation of solar irradiation can include coal, natural gas, the multiple fossil energy of wet goods as a supplement.With this kind of fossil energy be fuel boiler and electricity generation system highly developed, for instance thermal power station etc. common at present.This kind of system can reach flexible modulation and smooth long term running, just can make up the defect that solar radiation heat is unstable.
Photo-thermal power generation requires over thermodynamic cycle and realizes thermo-electric conversion, and at present in the middle of numerous thermodynamic cycles, supercritical Brayton cycle is a kind of circulation form having superiority most.It is big that Novel carbon dioxide supercritical working medium has energy density, heat transfer efficiency is high, the innate advantages such as system is simple, heat to power output efficiency can be greatly improved, reduce equipment volume, there is significantly high economy, be the optimum selection substituting existing steam circulation system, be also the trend of following heat and power system development.
But adopt the solar energy system of the energy storage modes such as accumulation of heat cannot realize the seasonal and continuous overcast and rainy adjustment waiting Large Copacity heat energy, and the adjustment of energy round the clock can only be realized in little scope, and native system can realize long-term big thermal capacity adjustment.But fully do not realize the value of solar energy high-grade energy using solar energy as the electricity generation system of low-temperature prewarming part auxiliary thermal source, and the fossil energy large percentage consumed.
Summary of the invention
It is an object of the invention to the shortcoming overcoming above-mentioned prior art, provide a kind of complementary type supercritical carbon dioxide Brayton cycle electricity generation system and method, this system and method realizes generating by the mode that solar energy is complementary with fossil energy, and fossil energy this consumption ratio is less.
For reaching above-mentioned purpose, complementary type supercritical carbon dioxide Brayton cycle electricity generation system of the present invention includes solar thermal collector, boiler, turbine power generation system, high temperature regenerator, cryogenic regenerator, precooler, main compressor and recompression machine；
The outlet of solar thermal collector and the outlet of boiler are all connected with the entrance of turbine power generation system, the outlet of turbine power generation system is connected with the cold side entrance of high temperature regenerator, the cold side outlet of high temperature regenerator is connected with the cold side entrance of cryogenic regenerator, the cold side outlet of cryogenic regenerator is connected with the entrance of the working medium side entrance of precooler and recompression machine, the working medium side outlet of precooler is connected with the entrance of main compressor, the outlet of main compressor is connected with the heat absorbing side entrance of cryogenic regenerator, the heat absorbing side outlet of cryogenic regenerator and the outlet of recompression machine are all connected with the heat absorbing side entrance of high temperature regenerator, the heat absorbing side outlet of high temperature regenerator is connected with the entrance of boiler and the entrance of solar thermal collector respectively.
Complementary type supercritical carbon dioxide Brayton cycle electricity-generating method of the present invention comprises the following steps:
nullWhen solar thermal collector can collect heat，And the heat collected of solar thermal collector is when disclosure satisfy that turbine power generation system to the demand of heat，Then close boiler，It is closed at the exit and entrance of boiler，The high-temperature supercritical carbon dioxide working medium of solar thermal collector output enters in turbine power generation system，The heat energy of described high-temperature supercritical carbon dioxide working medium is converted into electric energy by turbine power generation system，Temperature supercritical carbon dioxide working medium is made to become low-pressure supercritical carbon dioxide working medium，Described low-pressure supercritical carbon dioxide working medium sequentially enters in the cold side of high temperature regenerator and the cold side of cryogenic regenerator，It is divided into two-way from the supercritical carbon dioxide working medium of cryogenic regenerator cold side output，Wherein a road enters into pre-cooling in precooler，It is compressed in main compressor successively again after pre-cooling、The heat absorbing side of cryogenic regenerator is absorbed heat，Another road enters in recompression machine and is compressed，The supercritical carbon dioxide working medium that the supercritical carbon dioxide working medium of recompression machine output and cryogenic regenerator heat absorbing side export enters into the heat absorbing side of high temperature regenerator and absorbs heat after confluxing，The supercritical carbon dioxide working medium of high temperature regenerator heat absorbing side output enters into heat absorption in solar thermal collector and forms high-temperature supercritical carbon dioxide working medium；
nullWhen solar thermal collector can not collect heat，Then close solar thermal collector，The entrance of Guan Bi solar thermal collector and outlet，The high-temperature supercritical carbon dioxide working medium of boiler output enters in turbine power generation system，The heat energy of described high-temperature supercritical carbon dioxide working medium is converted into electric energy by turbine power generation system，Temperature supercritical carbon dioxide working medium is made to become low-pressure supercritical carbon dioxide working medium，Described low-pressure supercritical carbon dioxide working medium sequentially enters in the cold side of high temperature regenerator and the cold side of cryogenic regenerator，It is divided into two-way from the supercritical carbon dioxide working medium of cryogenic regenerator cold side output，Wherein a road enters into pre-cooling in precooler，It is compressed in main compressor successively again after pre-cooling、The heat absorbing side of cryogenic regenerator is absorbed heat，Another road enters in recompression machine and is compressed，The supercritical carbon dioxide working medium that the supercritical carbon dioxide working medium of recompression machine output and cryogenic regenerator heat absorbing side export enters into the heat absorbing side of high temperature regenerator and absorbs heat after confluxing，The supercritical carbon dioxide working medium of high temperature regenerator heat absorbing side output enters into heat absorption in boiler and forms high-temperature supercritical carbon dioxide working medium；
nullWhen solar thermal collector can collect heat，And the heat collected of solar thermal collector is when can not meet turbine power generation system to the demand of heat，Solar thermal collector and normal operation of boiler，The high-temperature supercritical carbon dioxide working medium that solar thermal collector and boiler export enters in turbine power generation system after confluxing，The heat energy of described high-temperature supercritical carbon dioxide working medium is converted into electric energy by turbine power generation system，Temperature supercritical carbon dioxide working medium is made to become low-pressure supercritical carbon dioxide working medium，Described low-pressure supercritical carbon dioxide working medium sequentially enters in the cold side of high temperature regenerator and the cold side of cryogenic regenerator，It is divided into two-way from the supercritical carbon dioxide working medium of cryogenic regenerator cold side output，Wherein a road enters into pre-cooling in precooler，It is compressed in main compressor successively again after pre-cooling、The heat absorbing side of cryogenic regenerator is absorbed heat，Another road enters in recompression machine and is compressed，The supercritical carbon dioxide working medium that the supercritical carbon dioxide working medium of recompression machine output and cryogenic regenerator heat absorbing side export enters into the heat absorbing side of high temperature regenerator and absorbs heat after confluxing，The supercritical carbon dioxide working medium of high temperature regenerator heat absorbing side output two-way respectively，Wherein a road enters into heat absorption in boiler and forms high-temperature supercritical carbon dioxide working medium，Another road enters into heat absorption in solar thermal collector and forms high-temperature supercritical carbon dioxide working medium.
When solar thermal collector can collect heat, and the heat collected of solar thermal collector is when can not meet turbine power generation system to the demand of heat, the amount of heat that solar thermal collector absorbs is directly proportional to entering into the flow of supercritical carbon dioxide working medium in solar thermal collector；The high-temperature supercritical carbon dioxide working medium of solar thermal collector output and the high-temperature supercritical carbon dioxide working medium of boiler output meet the turbine power generation system demand to heat.
The method have the advantages that
Complementary type supercritical carbon dioxide Brayton cycle electricity generation system of the present invention and method are in use, solar thermal collector can be passed through and boiler is independent or provides high-temperature supercritical carbon dioxide working medium for turbine power generation system simultaneously, when solar radiation abundance, then it is individually for turbine power generation system for thermal source by solar thermal collector with solar energy and heat energy is provided, by day, when solar radiation is inadequate, then provide heat energy by solar thermal collector and boiler for turbine power generation system for thermal source with solar energy and fossil energy；After solar radiation terminates, then provide heat energy by boiler for turbine power generation system for thermal source with fossil energy, thus realizing solar energy and fossil energy complemental power-generation, simultaneously only when solar radiation terminates or radiates inadequate, open boiler, thus utilizing solar energy to a greater extent, reduce this consumption ratio of fossil energy.The present invention is with supercritical carbon dioxide for working medium simultaneously, relative to traditional water vapour thermodynamic cycle TRT, the volume of system is less, more compact, the thermal efficiency is higher, and supercritical carbon dioxide working medium can reach 700 DEG C of water vapour efficiency of thermal cycles when 600 DEG C simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Wherein, 1 be solar thermal collector, 2 be boiler, 3 be turbine power generation system, 4 be high temperature regenerator, 5 be cryogenic regenerator, 6 be precooler, 7 be main compressor, 8 for recompression machine.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail:
With reference to Fig. 1, complementary type supercritical carbon dioxide Brayton cycle electricity generation system of the present invention includes solar thermal collector 1, boiler 2, turbine power generation system 3, high temperature regenerator 4, cryogenic regenerator 5, precooler 6, main compressor 7 and recompression machine 8；The outlet of solar thermal collector 1 and the outlet of boiler 2 are all connected with the entrance of turbine power generation system 3, the outlet of turbine power generation system 3 is connected with the cold side entrance of high temperature regenerator 4, the cold side outlet of high temperature regenerator 4 is connected with the cold side entrance of cryogenic regenerator 5, the cold side outlet of cryogenic regenerator 5 is connected with the working medium side entrance of precooler 6 and the entrance of recompression machine 8, the working medium side outlet of precooler 6 is connected with the entrance of main compressor 7, the outlet of main compressor 7 is connected with the heat absorbing side entrance of cryogenic regenerator 5, the heat absorbing side outlet of cryogenic regenerator 5 and the outlet of recompression machine 8 are all connected with the heat absorbing side entrance of high temperature regenerator 4, the heat absorbing side outlet of high temperature regenerator 4 is connected with the entrance of the entrance of boiler 2 and solar thermal collector 1 respectively.
Complementary type supercritical carbon dioxide Brayton cycle electricity-generating method of the present invention comprises the following steps:
nullWhen solar thermal collector 1 can collect heat，And the heat collected of solar thermal collector 1 is when disclosure satisfy that turbine power generation system 3 to the demand of heat，Then close boiler 2，It is closed at the exit and entrance of boiler 2，The high-temperature supercritical carbon dioxide working medium of solar thermal collector 1 output enters in turbine power generation system 3，The heat energy of described high-temperature supercritical carbon dioxide working medium is converted into electric energy by turbine power generation system 3，Temperature supercritical carbon dioxide working medium is made to become low-pressure supercritical carbon dioxide working medium，Described low-pressure supercritical carbon dioxide working medium sequentially enters in the cold side of high temperature regenerator 4 and the cold side of cryogenic regenerator 5，It is divided into two-way from the supercritical carbon dioxide working medium of cryogenic regenerator 5 cold side output，Wherein a road enters into pre-cooling in precooler 6，It is compressed in main compressor 7 successively again after pre-cooling、The heat absorbing side of cryogenic regenerator 5 is absorbed heat，Another road enters in recompression machine 8 and is compressed，The supercritical carbon dioxide working medium that the supercritical carbon dioxide working medium of recompression machine 8 output and cryogenic regenerator 5 heat absorbing side export enters into the heat absorbing side of high temperature regenerator 4 and absorbs heat after confluxing，The supercritical carbon dioxide working medium of high temperature regenerator 4 heat absorbing side output enters into heat absorption in solar thermal collector 1 and forms high-temperature supercritical carbon dioxide working medium；
nullWhen solar thermal collector 1 can not collect heat，Then close solar thermal collector 1，The entrance of Guan Bi solar thermal collector 1 and outlet，The high-temperature supercritical carbon dioxide working medium of boiler 2 output enters in turbine power generation system 3，The heat energy of described high-temperature supercritical carbon dioxide working medium is converted into electric energy by turbine power generation system 3，Temperature supercritical carbon dioxide working medium is made to become low-pressure supercritical carbon dioxide working medium，Described low-pressure supercritical carbon dioxide working medium sequentially enters in the cold side of high temperature regenerator 4 and the cold side of cryogenic regenerator 5，It is divided into two-way from the supercritical carbon dioxide working medium of cryogenic regenerator 5 cold side output，Wherein a road enters into pre-cooling in precooler 6，It is compressed in main compressor 7 successively again after pre-cooling、The heat absorbing side of cryogenic regenerator 5 is absorbed heat，Another road enters in recompression machine 8 and is compressed，The supercritical carbon dioxide working medium that the supercritical carbon dioxide working medium of recompression machine 8 output and cryogenic regenerator 5 heat absorbing side export enters into the heat absorbing side of high temperature regenerator 4 and absorbs heat after confluxing，The supercritical carbon dioxide working medium of high temperature regenerator 4 heat absorbing side output enters into heat absorption in boiler 2 and forms high-temperature supercritical carbon dioxide working medium；
nullWhen solar thermal collector 1 can collect heat，And the heat collected of solar thermal collector 1 is when can not meet turbine power generation system 3 to the demand of heat，Solar thermal collector 1 and boiler 2 normal operation，The high-temperature supercritical carbon dioxide working medium that solar thermal collector 1 and boiler 2 export enters in turbine power generation system 3 after confluxing，The heat energy of described high-temperature supercritical carbon dioxide working medium is converted into electric energy by turbine power generation system 3，Temperature supercritical carbon dioxide working medium is made to become low-pressure supercritical carbon dioxide working medium，Described low-pressure supercritical carbon dioxide working medium sequentially enters in the cold side of high temperature regenerator 4 and the cold side of cryogenic regenerator 5，It is divided into two-way from the supercritical carbon dioxide working medium of cryogenic regenerator 5 cold side output，Wherein a road enters into pre-cooling in precooler 6，It is compressed in main compressor 7 successively again after pre-cooling、The heat absorbing side of cryogenic regenerator 5 is absorbed heat，Another road enters in recompression machine 8 and is compressed，The supercritical carbon dioxide working medium that the supercritical carbon dioxide working medium of recompression machine 8 output and cryogenic regenerator 5 heat absorbing side export enters into the heat absorbing side of high temperature regenerator 4 and absorbs heat after confluxing，The supercritical carbon dioxide working medium of high temperature regenerator 4 heat absorbing side output two-way respectively，Wherein a road enters into heat absorption in boiler 2 and forms high-temperature supercritical carbon dioxide working medium，Another road enters into heat absorption in solar thermal collector 1 and forms high-temperature supercritical carbon dioxide working medium.
It should be noted that, when solar thermal collector 1 can collect heat, and the heat collected of solar thermal collector 1 is when can not meet turbine power generation system 3 to the demand of heat, the amount of heat that solar thermal collector 1 absorbs is directly proportional to entering into the flow of supercritical carbon dioxide working medium in solar thermal collector 1；The high-temperature supercritical carbon dioxide working medium of solar thermal collector 1 output and the high-temperature supercritical carbon dioxide working medium of boiler 2 output meet the turbine power generation system 3 demand to heat.
Above-described detailed description of the invention; the purpose of the present invention, technical scheme and beneficial effect have been further described; it is it should be understood that; the foregoing is only the specific embodiment of the present invention; it is not limited to the present invention; all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (3)
1. a complementary type supercritical carbon dioxide Brayton cycle electricity generation system, it is characterized in that, including solar thermal collector (1), boiler (2), turbine power generation system (3), high temperature regenerator (4), cryogenic regenerator (5), precooler (6), main compressor (7) and recompression machine (8)；
nullThe outlet of solar thermal collector (1) and the outlet of boiler (2) are all connected with the entrance of turbine power generation system (3)，The outlet of turbine power generation system (3) is connected with the cold side entrance of high temperature regenerator (4)，The cold side outlet of high temperature regenerator (4) is connected with the cold side entrance of cryogenic regenerator (5)，The cold side outlet of cryogenic regenerator (5) is connected with the working medium side entrance of precooler (6) and the entrance of recompression machine (8)，The working medium side outlet of precooler (6) is connected with the entrance of main compressor (7)，The outlet of main compressor (7) is connected with the heat absorbing side entrance of cryogenic regenerator (5)，The heat absorbing side outlet of cryogenic regenerator (5) and the outlet of recompression machine (8) are all connected with the heat absorbing side entrance of high temperature regenerator (4)，The heat absorbing side outlet of high temperature regenerator (4) is connected with the entrance of the entrance of boiler (2) and solar thermal collector (1) respectively.
2. a complementary type supercritical carbon dioxide Brayton cycle electricity-generating method, it is characterised in that based on the complementary type supercritical carbon dioxide Brayton cycle electricity generation system described in claim 1, comprise the following steps:
nullWhen solar thermal collector (1) can collect heat，And the heat collected of solar thermal collector (1) is when disclosure satisfy that turbine power generation system (3) to the demand of heat，Then close boiler (2)，It is closed at the exit and entrance of boiler (2)，The high-temperature supercritical carbon dioxide working medium that solar thermal collector (1) exports enters in turbine power generation system (3)，The heat energy of described high-temperature supercritical carbon dioxide working medium is converted into electric energy by turbine power generation system (3)，Temperature supercritical carbon dioxide working medium is made to become low-pressure supercritical carbon dioxide working medium，Described low-pressure supercritical carbon dioxide working medium sequentially enters in the cold side of high temperature regenerator (4) and the cold side of cryogenic regenerator (5)，It is divided into two-way from the supercritical carbon dioxide working medium of cryogenic regenerator (5) cold side output，Wherein a road enters into pre-cooling in precooler (6)，It is compressed in main compressor (7) successively again after pre-cooling、The heat absorbing side of cryogenic regenerator (5) is absorbed heat，Another road enters in recompression machine (8) and is compressed，The supercritical carbon dioxide working medium that the supercritical carbon dioxide working medium that recompression machine (8) exports and cryogenic regenerator (5) heat absorbing side export enters into the heat absorbing side of high temperature regenerator (4) and absorbs heat after confluxing，The supercritical carbon dioxide working medium of high temperature regenerator (4) heat absorbing side output enters into heat absorption in solar thermal collector (1) and forms high-temperature supercritical carbon dioxide working medium；
nullWhen solar thermal collector (1) can not collect heat，Then close solar thermal collector (1)，The entrance of Guan Bi solar thermal collector (1) and outlet，The high-temperature supercritical carbon dioxide working medium that boiler (2) exports enters in turbine power generation system (3)，The heat energy of described high-temperature supercritical carbon dioxide working medium is converted into electric energy by turbine power generation system (3)，Temperature supercritical carbon dioxide working medium is made to become low-pressure supercritical carbon dioxide working medium，Described low-pressure supercritical carbon dioxide working medium sequentially enters in the cold side of high temperature regenerator (4) and the cold side of cryogenic regenerator (5)，It is divided into two-way from the supercritical carbon dioxide working medium of cryogenic regenerator (5) cold side output，Wherein a road enters into pre-cooling in precooler (6)，It is compressed in main compressor (7) successively again after pre-cooling、The heat absorbing side of cryogenic regenerator (5) is absorbed heat，Another road enters in recompression machine (8) and is compressed，The supercritical carbon dioxide working medium that the supercritical carbon dioxide working medium that recompression machine (8) exports and cryogenic regenerator (5) heat absorbing side export enters into the heat absorbing side of high temperature regenerator (4) and absorbs heat after confluxing，The supercritical carbon dioxide working medium of high temperature regenerator (4) heat absorbing side output enters into heat absorption in boiler (2) and forms high-temperature supercritical carbon dioxide working medium；
nullWhen solar thermal collector (1) can collect heat，And the heat collected of solar thermal collector (1) is when can not meet turbine power generation system (3) to the demand of heat，Solar thermal collector (1) and boiler (2) normal operation，The high-temperature supercritical carbon dioxide working medium that solar thermal collector (1) and boiler (2) export enters in turbine power generation system (3) after confluxing，The heat energy of described high-temperature supercritical carbon dioxide working medium is converted into electric energy by turbine power generation system (3)，Temperature supercritical carbon dioxide working medium is made to become low-pressure supercritical carbon dioxide working medium，Described low-pressure supercritical carbon dioxide working medium sequentially enters in the cold side of high temperature regenerator (4) and the cold side of cryogenic regenerator (5)，It is divided into two-way from the supercritical carbon dioxide working medium of cryogenic regenerator (5) cold side output，Wherein a road enters into pre-cooling in precooler (6)，It is compressed in main compressor (7) successively again after pre-cooling、The heat absorbing side of cryogenic regenerator (5) is absorbed heat，Another road enters in recompression machine (8) and is compressed，The supercritical carbon dioxide working medium that the supercritical carbon dioxide working medium that recompression machine (8) exports and cryogenic regenerator (5) heat absorbing side export enters into the heat absorbing side of high temperature regenerator (4) and absorbs heat after confluxing，The supercritical carbon dioxide working medium of high temperature regenerator (4) heat absorbing side output two-way respectively，Wherein a road enters into heat absorption in boiler (2) and forms high-temperature supercritical carbon dioxide working medium，Another road enters into heat absorption in solar thermal collector (1) and forms high-temperature supercritical carbon dioxide working medium.
3. complementary type supercritical carbon dioxide Brayton cycle electricity-generating method according to claim 2, it is characterized in that, when solar thermal collector (1) can collect heat, and the heat collected of solar thermal collector (1) is when can not meet turbine power generation system (3) to the demand of heat, the amount of heat that solar thermal collector (1) absorbs is directly proportional to entering into the flow of supercritical carbon dioxide working medium in solar thermal collector (1)；High-temperature supercritical carbon dioxide working medium that solar thermal collector (1) exports and the high-temperature supercritical carbon dioxide working medium that boiler (2) exports meet the turbine power generation system (3) demand to heat.
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| CN106437904A (en) * | 2016-09-14 | 2017-02-22 | 西安热工研究院有限公司 | Solar medium-temperature preheating coal-based supercritical carbon dioxide generating system |
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| CN108374720A (en) * | 2018-01-24 | 2018-08-07 | 西安热工研究院有限公司 | A kind of IGCC power generation system of coal gas-supercritical carbon dioxide recompression cycle |
| CN108661733A (en) * | 2018-06-25 | 2018-10-16 | 西安热工研究院有限公司 | A kind of enclosed purge system and method suitable for supercritical carbon dioxide Brayton cycle |
| CN108661733B (en) * | 2018-06-25 | 2023-11-14 | 西安热工研究院有限公司 | Closed purging system and method suitable for supercritical carbon dioxide Brayton cycle |
| CN110159375A (en) * | 2019-05-24 | 2019-08-23 | 华北电力大学 | Tower type solar-fire coal coupling heat source carbon dioxide electricity generation system and method |
| CN114320497A (en) * | 2020-10-10 | 2022-04-12 | 河南科技大学 | Supercritical carbon dioxide gas cooling and recycling device for Brayton cycle power generation system |
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Application publication date: 20160706 |