CN115540385B - Nuclear reactor power generation system - Google Patents
Nuclear reactor power generation system Download PDFInfo
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- CN115540385B CN115540385B CN202211137594.1A CN202211137594A CN115540385B CN 115540385 B CN115540385 B CN 115540385B CN 202211137594 A CN202211137594 A CN 202211137594A CN 115540385 B CN115540385 B CN 115540385B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
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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
- F01D15/08—Adaptations for driving, or combinations with, pumps
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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
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D1/00—Details of nuclear power plant
- G21D1/02—Arrangements of auxiliary equipment
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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
- Y02E30/00—Energy generation of nuclear origin
Abstract
The utility model relates to a nuclear power utilization technical field, concretely relates to nuclear reactor power generation system, this nuclear reactor power generation system includes the nuclear reactor, heat supply module, power generation module and refrigeration module, the nuclear reactor heats first heat transfer medium, first heat transfer medium and heat supply module, heat supply device in the heat supply module supplies heat to the user, third heat transfer medium in the first power generation module and fourth heat transfer medium in the second power generation module all can with third heat transfer medium heat transfer, generate electricity respectively, the cooling medium in the refrigeration module exchanges heat with the third heat transfer medium after doing work through the third heat exchanger, realize refrigeration, make this nuclear reactor power generation system can also refrigerate and supply heat when carrying out the electricity generation, can provide the energy of multiple forms for the user, be favorable to satisfying the user to the energy demand of multiple forms, improve user experience.
Description
Technical Field
The application relates to the technical field of nuclear energy utilization, in particular to a nuclear reactor power generation system.
Background
Along with the continuous importance of people on environmental protection, people have a higher and higher attention on clean energy. Since nuclear power generation does not discharge a huge amount of pollutants into the atmosphere as fossil fuel generation does, air pollution is not caused, and nuclear power generation is becoming more and more important.
Because of remote geographical locations and complex climatic conditions in some areas, nuclear reactors capable of providing multiple energy forms have become an important research point for those skilled in the art due to the relatively diverse demands for energy.
Disclosure of Invention
The object of the present application is to provide a nuclear reactor power generation system having refrigeration and heating functions, which is advantageous for satisfying the energy demands of users for various forms.
In order to achieve the above purpose, the present application adopts the following technical scheme:
the application provides a nuclear reactor power generation system, which comprises a nuclear reactor, a heat supply module, a power generation module and a refrigeration module, wherein the nuclear reactor is used for heating a first heat exchange medium; the heat supply module comprises a first heat exchanger and a heat supply device which are communicated, the first heat exchanger exchanges heat with a first heat exchange medium, and a second heat exchange medium in the first heat exchanger circularly flows between the first heat exchanger and the heat supply device; the power generation module comprises a first power generation module and a second power generation module, and a third heat exchange medium in the first power generation module can exchange heat with the first heat exchange medium to drive the first power generation module to generate power; the fourth heat exchange medium in the second power generation module can exchange heat with the third heat exchange medium to drive the second power generation module to generate power; the refrigerating module comprises a third heat exchanger, a heat exchange assembly and a refrigerating assembly, wherein the third heat exchanger is communicated with the heat exchange assembly, the input end of the heat exchange assembly is communicated with the first power generation module, the output end of the heat exchange assembly is communicated with the second heat exchanger, third heat exchange medium flowing out of the first power generation module can flow through the heat exchange assembly and the third heat exchanger in sequence and then flow back to the second heat exchanger, the heat exchange assembly is used for cooling the third heat exchange medium, at least part of cooling medium in the refrigerating assembly exchanges heat with the third heat exchange medium through the third heat exchanger, and the refrigerating assembly is used for refrigerating.
According to the nuclear reactor power generation system provided by some embodiments of the application, the first power generation module comprises a second heat exchanger, a first turbine and a first power generator, a third heat exchange medium exchanges heat with the first heat exchange medium through the second heat exchanger, a rotating shaft of the first turbine is in transmission connection with a rotating shaft of the first power generator, the second heat exchanger is communicated with the first turbine, and the third heat exchange medium is used for driving the first turbine to rotate and flow back to the second heat exchanger.
According to the nuclear reactor power generation system provided by some embodiments of the application, the power generation module further comprises a second power generation module, the second power generation module comprises a fourth heat exchanger, a second turbine and a second generator, a rotating shaft of the second turbine is in transmission connection with a rotating shaft of the second generator, the fourth heat exchanger is communicated with the first turbine and the heat exchange assembly, and a fourth heat exchange medium in the fourth heat exchanger is used for driving the second turbine to rotate and flow back to the fourth heat exchanger.
The nuclear reactor power generation system provided by some embodiments of the present application further includes a third power generation module, the third power generation module includes a fifth heat exchanger, a third turbine and a third generator, the fifth heat exchanger exchanges heat with the first heat exchange medium, a rotating shaft of the third turbine is in transmission connection with a rotating shaft of the third generator, the third turbine is communicated with a fourth heat exchanger, the fifth heat exchanger is communicated with the first turbine and the third turbine, and the third heat exchange medium exchanges heat with the first heat exchange medium through the fifth heat exchanger and then drives the third turbine to rotate and flow to the fourth heat exchanger.
The nuclear reactor power generation system provided by some embodiments of the application, the heat exchange assembly includes heat exchanger group and cooler, and the hot side of heat exchanger group communicates between fourth heat exchanger and cooler, and the third heat exchanger communicates in the cold side of cooler and heat exchanger group, and the cold side of heat exchanger group communicates with the second heat exchanger.
The nuclear reactor power generation system provided by some embodiments of the present application, the refrigeration module further includes a first pressurization assembly, the first pressurization assembly includes a first compressor and a second compressor, the first compressor is communicated with the cooler, the third heat exchanger is communicated between the first compressor and the second compressor, and the second compressor is communicated with the cold side of the heat exchanger set.
According to the nuclear reactor power generation system provided by some embodiments of the application, the refrigerating module further comprises a third compressor, an inlet of the third compressor is communicated with an inlet of the cooler, and an outlet of the third compressor is communicated with a cold side of the heat exchanger group.
In some embodiments of the present disclosure, the input shaft of the first compressor and the input shaft of the second compressor are in driving connection with the rotating shaft of the third turbine, and the input shaft of the third compressor is in driving connection with the rotating shaft of the first turbine.
Some embodiments of the present application provide a nuclear reactor power generation system, wherein the refrigeration assembly includes an ejector, a condenser, an expansion valve, and an evaporator, and at least a portion of the cooling medium flows through the ejector, the condenser, the expansion valve, and the evaporator in sequence.
According to the nuclear reactor power generation system provided by some embodiments of the application, the refrigerating module further comprises a cooling medium pump, an inlet of the cooling medium pump is communicated with an outlet of the condenser, and an outlet of the cooling medium pump is communicated with a cold side of the third heat exchanger.
In some embodiments of the present disclosure, the first heat exchange medium pump is configured to be coupled to the first turbine and the first heat exchanger.
The nuclear reactor power generation system provided by any one of the above technical schemes of the application further comprises a heat pool, the first heat exchange medium is introduced into the heat pool, and the first heat exchanger and the second heat exchanger are both positioned in the heat pool and exchange heat with the first heat exchange medium.
In the nuclear reactor power generation system provided by any one of the above-mentioned technical solutions of the present application, the heat supply device includes a process heat supply device and a user heat supply device, the process heat supply device is connected between the outlet of the first heat exchanger and the user heat supply device, and the user heat supply device is connected with the inlet of the first heat exchanger.
The technical scheme provided by the embodiment of the disclosure at least brings the following beneficial effects:
the utility model provides a nuclear reactor power generation system, this nuclear reactor power generation system includes the nuclear reactor, heat supply module, power generation module and refrigerating module, the nuclear reactor heats first heat transfer medium, first heat transfer medium and heat supply module, heat supply device in the heat supply module supplies heat to the user, third heat transfer medium in the first power generation module and fourth heat transfer medium in the second power generation module in the power generation module all can exchange heat with third heat transfer medium, generate electricity respectively, the cooling medium in the refrigerating module exchanges heat with the third heat transfer medium after doing work through the third heat exchanger, realize refrigeration, make this nuclear reactor power generation system can also refrigerate and supply heat when carrying out the electricity generation, can provide the energy of multiple form for the user, be favorable to satisfying the user to the energy demand of multiple form, improve user experience.
Drawings
Features, advantages, and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a nuclear reactor power generating system according to an embodiment of the present application.
In the drawings, like reference numerals designate like elements, wherein 1, a nuclear reactor; 2. a first heat exchanger; 3. a heating device; 31. a process heating device; 32. a user heating device; 4. a heat pool; 5. a second heat exchanger; 6. a first turbine; 7. a first generator; 8. a third heat exchanger; 9. a jet device; 10. a condenser; 11. an expansion valve; 12. an evaporator; 13. a fourth heat exchanger; 14. a second turbine; 15. a second generator; 16. a fourth heat exchange medium pump; 17. a fourth heat exchange medium condenser; 18. a fifth heat exchanger; 19. a third turbine; 20. a third generator; 21. a heat exchanger group; 211. a high temperature heat exchanger; 212. a low temperature heat exchanger; 22. a cooler; 23. a first pressurizing assembly; 231. a first compressor; 232. a second compressor; 24. a third compressor; 25. a cooling medium pump.
Detailed Description
Embodiments of the present application are described in further detail below with reference to the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the present application and are not intended to limit the scope of the application, i.e. the application is not limited to the described preferred embodiments, which are defined by the claims.
In the description of the present application, it should be noted that, unless otherwise indicated, the meaning of "a number" is one or more than one; the meaning of "plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in the present application can be understood as appropriate by one of ordinary skill in the art.
For a better understanding of the present application, a nuclear reactor power generating system provided in accordance with an embodiment of the present application is described in detail below with reference to fig. 1.
As shown in fig. 1, an embodiment of the present application provides a nuclear reactor power generation system, where the nuclear reactor power generation system includes a nuclear reactor 1, a heat supply module, a power generation module and a refrigeration module, the nuclear reactor 1 is used for heating a first heat exchange medium, the heat supply module includes a first heat exchanger 2 and a heat supply device 3 that are connected, the first heat exchanger 2 exchanges heat with the first heat exchange medium, a second heat exchange medium in the first heat exchanger 2 circulates between the first heat exchanger 2 and the heat supply device 3, the power generation module includes a first power generation module and a second power generation module, and a third heat exchange medium in the first power generation module can exchange heat with the first heat exchange medium to drive the first power generation module to generate power; the fourth heat exchange medium in the second power generation module can exchange heat with the third heat exchange medium to drive the second power generation module to generate power;
the heat exchange system comprises a second heat exchanger 5, a first turbine 6 and a first generator 7, wherein the second heat exchanger 5 exchanges heat with a first heat exchange medium, a rotating shaft of the first turbine 6 is in transmission connection with a rotating shaft of the first generator 7, the second heat exchanger 5 is communicated with the first turbine 6, a third heat exchange medium in the second heat exchanger 5 is used for driving the first turbine 6 to rotate and flow back to the second heat exchanger 5, a refrigerating module comprises a third heat exchanger 8, a heat exchange assembly and a refrigerating assembly, the third heat exchanger 8 is communicated with the heat exchange assembly, an input end of the heat exchange assembly is communicated with the power generation module, an output end of the heat exchange assembly is communicated with the second heat exchanger 5, the third heat exchange medium flowing out of the first generator module can flow back to the second heat exchanger 5 after sequentially flowing through the heat exchange assembly and the third heat exchanger 8, the heat exchange assembly is used for cooling the third heat exchange medium, at least part of cooling medium in the refrigerating assembly exchanges heat with the third heat exchange medium through the third heat exchanger 8, and the refrigerating assembly is used for refrigerating.
The refrigeration assembly comprises an ejector 9, a condenser 10, an expansion valve 11 and an evaporator 12, at least part of the cooling medium exchanging heat with the third heat exchange medium through the third heat exchanger 8 and flowing through the ejector 9, the condenser 10, the expansion valve 11 and the evaporator 12 in sequence.
The nuclear reactor 1 may be referred to as a fluoride salt cooled thermopile, which serves as a heat source for heating the first heat exchange medium. The fluorine salt cooling high-temperature reactor integrates the advantages of a fourth generation advanced nuclear reactor 1 such as a molten salt reactor, a high-temperature gas cooled reactor, a sodium cooled fast reactor and the like, and has the characteristics of high-temperature low-pressure operation, anhydrous cooling, inherent safety, compact structure and the like; meanwhile, the fluorine salt cooling high-temperature pile has the advantages of small volume, light weight and low cost after being built, and the modularized small fluorine salt cooling high-temperature pile can realize high-efficiency power generation in arid areas.
The first heat exchange medium can be lithium fluoride sodium potassium fused salt which is used as a heat exchange working medium for conveying heat energy to the outside of the nuclear reactor 1.
In some embodiments of the present application, the nuclear reactor power generation system further includes a heat pool 4, the first heat exchange medium is introduced into the heat pool 4, the first heat exchanger 2, the second heat exchanger 5 and the third heat exchanger 8 are all located in the heat pool 4 and exchange heat with the first heat exchange medium, the heated first heat exchange medium is introduced into the heat pool 4, the first heat exchanger 2 and the second heat exchanger 5 are arranged in the heat pool 4, and the first heat exchanger 2, the second heat exchanger 5 and the third heat exchanger 8 are convenient for taking heat from the first heat exchange medium.
The third heat exchange medium can be supercritical carbon dioxide, so that the nuclear reactor power generation system can perform supercritical carbon dioxide Brayton cycle to realize power generation, and the power conversion technology has the advantages of system simplification, high efficiency, small volume and easiness in implementation.
The first heat exchanger 2 is arranged in the heat pool 4 and exchanges heat with the first heat exchange medium, and the second heat exchange medium circularly flows between the first heat exchanger 2 and the heat supply device 3 to continuously send heat to the heat supply device 3.
In some embodiments of the present application, the heating means 3 comprises a process heating means 31 and a user heating means 32, the process heating means 31 being in communication between the outlet of the first heat exchanger 2 and the user heating means 32, the user heating means 32 being in communication with the inlet of the first heat exchanger 2.
The inlet of the process heat supply device 31 is communicated with the outlet of the first heat exchanger 2, the outlet of the process heat supply device 31 is communicated with the inlet of the user heat supply device 32, the outlet of the user heat exchanger 32 is communicated with the inlet of the first heat exchanger 2, the second heat exchange medium flows out of the first heat exchanger 2 and then enters the process heat supply device 31, the process heat supply device 31 can output high-temperature process heat above 700 ℃, and the process heat supply device can be used for high-temperature hydrogen production, brine desalination, mineral exploitation and the like and can be matched with multi-purpose and multi-layer energy requirements; the second heat exchange medium flows into the user heating device 32 after passing through the process heating device 31, the temperature of the second heat exchange medium is reduced, and the second heat exchange medium can be used as a heat source to provide heating heat for users.
The hot side of the third heat exchanger 8 is communicated between the first turbine 6 and the second heat exchanger, and the cooling medium in the cold side of the third heat exchanger 8 at least partially flows through the ejector 9, the condenser 10, the expansion valve 11 and the evaporator 12 in sequence after exchanging heat with the third heat exchange medium through the third heat exchanger 8, the user is refrigerated through the evaporator 12, the ejector 9 is utilized for jet refrigeration circulation, so that heat in the cooling medium is fully discharged through the condenser 10, the emission of the nuclear reactor power generation system can be reduced, and the working efficiency is improved.
Through the structure, the nuclear reactor power generation system can provide heat energy for a user through the heat supply device 3, provide electric energy for the user through the first generator 7, refrigerate the user through the evaporator 12, and can also refrigerate and supply heat while generating electricity, so that various forms of energy can be provided for the user, the requirements of the user on various forms of energy can be met, and the user experience is improved.
In some embodiments of the present application, the first power generation module includes a second heat exchanger 5, a first turbine 6 and a first power generator 7, the third heat exchange medium exchanges heat with the first heat exchange medium through the second heat exchanger 5, a rotating shaft of the first turbine 6 is in transmission connection with a rotating shaft of the first power generator 7, the second heat exchanger 5 is communicated with the first turbine 6, and the third heat exchange medium is used for driving the first turbine 6 to rotate and flow back to the second heat exchanger 5.
The second heat exchanger 5 is arranged in the heat pool 4 and exchanges heat with the first heat exchange medium, wherein the third heat exchange medium circularly flows among the second heat exchanger 5, the first turbine 6 and the first generator 7 and continuously applies work to the first turbine 6 to drive the first generator 7 to generate power.
In some embodiments of the present application, the power generation module further includes a second power generation module, where the second power generation module includes a fourth heat exchanger 13, a second turbine 14, and a second generator 15, where a rotation shaft of the second turbine 14 is in driving connection with a rotation shaft of the second generator 15, the fourth heat exchanger 13 is in communication with the first turbine 6 and the heat exchange assembly, and a fourth heat exchange medium in the fourth heat exchanger 13 is used to drive the second turbine 14 to rotate and flow back to the fourth heat exchanger 13.
The hot side of the fourth heat exchanger 13 is connected between the first turbine 6 and the heat exchange assembly, and the fourth heat exchange medium in the cold side of the fourth heat exchanger 13 applies work to the second turbine 14 to continuously drive the second generator 15 to generate electricity.
In some embodiments of the present application, the second power generation module further includes a fourth heat exchange medium pump 16, where the fourth heat exchange medium pump 16 is communicated between the second turbine 14 and the fourth heat exchanger 13, and the fourth heat exchange medium pump 16 is capable of conveying the fourth heat exchange medium from the second turbine 14 to the fourth heat exchanger 13, so as to promote the flow of the fourth heat exchange medium, and facilitate the fourth heat exchange medium to continuously apply work to the second turbine 14.
Optionally, the second power generation module further includes a fourth heat exchange medium condenser 17, and a hot side of the fourth heat exchange medium condenser 17 is communicated between the second turbine 14 and the fourth heat exchange medium pump 16, so as to cool the fourth heat exchange medium. The cold side of the fourth heat exchange medium condenser 17 can be also filled with a coolant to cool the fourth heat exchange medium, which is beneficial to improving the cooling efficiency of the fourth heat exchange medium.
The fourth heat exchange medium may be an organic working medium, which can exchange heat with the third heat exchange medium through the fourth heat exchanger 13 and apply work to the second turbine 14, so that efficient heat exchange and work application are facilitated. And the second power generation module is used for generating power by carrying out organic Rankine cycle, the organic Rankine cycle can be used for recycling waste heat with medium and low temperature, and the energy utilization efficiency can be greatly improved by using the organic Rankine cycle for secondary power generation.
In some embodiments of the present application, the nuclear reactor power generating system further includes a third power generating module, where the third power generating module includes a fifth heat exchanger 18, a third turbine 19 and a third generator 20, the fifth heat exchanger 18 exchanges heat with the first heat exchange medium, a rotating shaft of the third turbine 19 is in driving connection with a rotating shaft of the third generator 20, the third turbine 19 is in communication with the fourth heat exchanger 13, the fifth heat exchanger 18 is in communication with the first turbine 6 and the third turbine 19, and the third heat exchange medium exchanges heat with the first heat exchange medium through the fifth heat exchanger 18 to drive the third turbine 19 to rotate and flow to the fourth heat exchanger 13.
The fifth heat exchanger 18 is arranged in the heat pool 4 and exchanges heat with the first heat exchange medium, the inlet of the fifth heat exchanger 18 is communicated with the outlet of the first turbine 6, the third turbine 19 is communicated between the outlet of the fifth heat exchanger 18 and the hot side inlet of the fourth heat exchanger 13, so that the third heat exchange medium after acting on the first turbine 6 is heated again by the fifth heat exchanger 18 and acts on the third turbine 19, and then the third generator 20 is driven to generate electricity, and the power generation efficiency of the nuclear reactor power generation system is improved while the utilization efficiency of heat energy in the first heat exchange medium is improved.
In some embodiments of the present application, the heat exchange assembly comprises a heat exchanger group 21 and a cooler 22, the hot side of the heat exchanger group 21 being in communication between the fourth heat exchanger 13 and the cooler 22, the third heat exchanger 8 being in communication with the cooler 22 and the cold side of the heat exchanger group 21, the cold side of the heat exchanger group 21 being in communication with the second heat exchanger 5.
In some embodiments, the cooler 22 may be configured to exchange heat with cooling water, which may be advantageous to improve the cooling efficiency of the cooler 22.
The inlet of the hot side of the heat exchanger group 21 is communicated with the outlet of the hot side of the fourth heat exchanger 13, the outlet of the hot side of the heat exchanger group 21 is communicated with the inlet of the cooler 22, the outlet of the cooler 22 is communicated with the inlet of the third heat exchanger 8, the outlet of the third heat exchanger 8 is communicated with the inlet of the cold side of the heat exchanger group 21, the outlet of the cold side of the heat exchanger group 21 is communicated with the second heat exchanger 5, the third heat exchange medium exchanges heat with the third heat exchange medium through the third heat exchanger 8 after being cooled by the heat exchanger group 21 and the cooler 22, then flows back to the heat exchanger group 21 to exchange heat with the uncooled third heat exchange medium to raise the temperature, and finally flows back to the third heat exchanger 8 to realize the circulation flow of the third heat exchange medium.
The heat exchanger group 21 may include a high temperature heat exchanger 211 and a low temperature heat exchanger 212, the hot side of the high temperature heat exchanger 211 and the hot side of the low temperature heat exchanger 212 being in communication, the hot side of the high temperature heat exchanger 211 being located upstream of the hot side of the low temperature heat exchanger 212, the cold side of the high temperature heat exchanger 211 and the cold side of the low temperature heat exchanger 212 being in communication, the cold side of the high temperature heat exchanger 211 being located downstream of the cold side of the low temperature heat exchanger 212. The number of heat exchangers in the heat exchanger group 21 can be set by those skilled in the art according to the actual circumstances.
In some embodiments of the present application, the refrigeration module further comprises a first pressurization assembly 23, the first pressurization assembly 23 comprising a first compressor 231 and a second compressor 232, the first compressor 231 being in communication with the cooler 22, the third heat exchanger 8 being in communication between the first compressor 231 and the second compressor 232, the second compressor 232 being in communication with the cold side of the heat exchanger bank 21.
By communicating the third heat exchanger 8 between the first compressor 231 and the second compressor 232, the third heat exchanger 8 exchanges heat with the third heat exchange medium flowing through the condenser 10, so that the third heat exchange medium between the first compressor 231 and the second compressor 232 participates in cooling. Meanwhile, the first compressor 231 and the second compressor 232 can pressurize the third heat exchange medium, promoting a smooth flow of the third heat exchange medium.
In some embodiments of the present application, the refrigeration module further comprises a third compressor 24, the inlet of the third compressor 24 being in communication with the inlet of the cooler 22, the outlet of the third compressor 24 being in communication with the cold side of the heat exchanger bank 21.
The third compressor 24 can extract part of the third heat exchange medium from the inlet of the cooler 22, pressurize the third heat exchange medium, then convey the third heat exchange medium to the cold side of the heat exchanger group 21, and supplement liquid to the third heat exchange medium core of the second heat exchanger 5, thereby being beneficial to the circulation flow of the third heat exchange medium.
In some embodiments of the present application, the input shaft of the first compressor 231 and the input shaft of the second compressor 232 are drivingly connected to the rotating shaft of the third turbine 19, and the input shaft of the third compressor 24 is drivingly connected to the rotating shaft of the first turbine 6.
The input shaft of the first compressor 231 and the input shaft of the second compressor 232 are in transmission connection with the rotating shaft of the third turbine 19, so that the third turbine 19 can also drive the first compressor 231 and the second compressor 232 to work under the action of the third heat exchange medium, and the energy of the third heat exchange medium can be fully utilized. Likewise, the input shaft of the third compressor 24 is in transmission connection with the rotating shaft of the first turbine 6, so that the first turbine 6 can also drive the third compressor 24 to work under the action of the third heat exchange medium, which is beneficial to fully utilizing the energy of the third heat exchange medium.
In some embodiments of the present application, the refrigeration module further comprises a cooling medium pump 25, the inlet of the cooling medium pump 25 being in communication with the outlet of the condenser 10, the outlet of the cooling medium pump 25 being in communication with the cold side of the third heat exchanger 8.
Optionally, the inlet of the cooling medium pump 25 is connected to the outlet of the condenser 10, the outlet of the cooling medium pump 25 is connected to the inlet of the cold side of the third heat exchanger 8, the inlet of the ejector 9 is connected to the outlet of the cold side of the third heat exchanger 8, and the cooling medium pump 25 can pump the cooling medium from the condenser 10, so that the cooling medium flows through the third heat exchanger 8 and is conveyed to the ejector 9, and the ejector 9 is supplemented with liquid, thereby being beneficial to maintaining the normal operation of the ejector 9.
The operation of the reactor power generation system will be further described.
The first heat exchange medium flowing out of the nuclear reactor 1 enters the heat pool 4, and after the second heat exchange medium in the first heat exchanger 2 exchanges heat with the first heat exchange medium, the heat exchange medium flows through the process heat supply device 31 and the user heat supply device 32 in sequence and then flows back into the first heat exchanger 2, the process heat supply device 31 can meet the process heat requirement of a user, and the user heat supply device 32 can meet the heating requirement of the user.
After the third heat exchange medium in the second heat exchanger 5 exchanges heat with the first heat exchange medium, firstly, the first turbine 6 performs work, the first turbine 6 drives the first generator 7 to rotate for generating power, then flows into the fifth heat exchanger 18 to perform heat exchange with the first heat exchange medium, then flows into the third turbine 19 to perform work, the third turbine 19 drives the third generator 20 to perform power generation, then the third heat exchange medium flows into the hot side of the fourth heat exchanger 13 to perform heat exchange with the fourth heat exchange medium on the cold side of the fourth heat exchanger 13, then flows through the hot side of the high-temperature heat exchanger 211, the hot side of the low-temperature heat exchanger 212 and the cooler 22 in sequence, the third heat exchange medium is cooled and cooled in the process, then flows into the hot side of the third heat exchanger 8 after being pressurized by the first compressor 231, and then flows into the cold side of the third heat exchanger 8 after being pressurized by the second compressor 232; the third heat exchange medium pumped and pressurized by the third compressor 24 is converged with the third heat exchange medium flowing out of the cold side of the low-temperature heat exchanger 212, and then enters the high-temperature heat exchanger 211, finally flows into the second heat exchanger 5, and one cycle is realized.
The fourth heat exchange medium at the cold side of the fourth heat exchanger 13 exchanges heat with the third heat exchange medium, then enters the second turbine 14, works on the second turbine 14, drives the second generator 15 to rotate for generating electricity, then sequentially flows through the fourth heat exchange medium condenser 17 and the fourth heat exchange medium pump 16, and flows back to the cold side of the fourth heat exchanger 13 under the conveying of the fourth heat exchange medium pump 16, so that one cycle is completed.
The cooling medium in the cold side of the third heat exchanger 8 flows into the condenser 10 under the action of the ejector 9, part of the cooling medium flowing out of the condenser 10 flows back to the inlet of the ejector 9 through the expansion valve 11 and the evaporator 12, and the other part of the cooling medium flowing out of the condenser 10 enters the third heat exchanger 8 from the inlet of the cold side of the third heat exchanger 8 under the delivery of the cooling medium pump 25, so that one cycle is completed.
The embodiments described and illustrated herein are intended to be illustrative rather than limiting, and it is therefore understood that the foregoing embodiments are merely illustrative of and describe the preferred embodiments of the present application, with all modifications and equivalent arrangements falling within the scope of the present application as defined by the appended claims. While the use of words such as "better," "preferred," "preferably," or "more preferred" in the specification do not denote a required feature of the present application, the disclosure of an embodiment is also intended to cover such an embodiment as may be claimed herein.
Claims (13)
1. A nuclear reactor power generating system, comprising:
a nuclear reactor for heating a first heat exchange medium;
the heat supply module comprises a first heat exchanger and a heat supply device which are communicated, wherein the first heat exchanger exchanges heat with the first heat exchange medium, and a second heat exchange medium in the first heat exchanger circularly flows between the first heat exchanger and the heat supply device;
the power generation module comprises a first power generation module and a second power generation module, and a third heat exchange medium in the first power generation module can exchange heat with the first heat exchange medium to drive the first power generation module to generate power; the fourth heat exchange medium in the second power generation module can exchange heat with the third heat exchange medium to drive the second power generation module to generate power;
the refrigerating module comprises a third heat exchanger, a heat exchange assembly and a refrigerating assembly, wherein the third heat exchanger is communicated with the heat exchange assembly, the input end of the heat exchange assembly is communicated with the first power generation module, the output end of the heat exchange assembly is communicated with the second heat exchanger, third heat exchange medium flowing out of the first power generation module can flow through the heat exchange assembly in sequence, and then flows back to the second heat exchanger, the heat exchange assembly is used for cooling the third heat exchange medium, at least part of cooling medium in the refrigerating assembly exchanges heat with the third heat exchange medium through the third heat exchanger, and the refrigerating assembly is used for refrigerating.
2. The nuclear reactor power generating system of claim 1, wherein the first power generating module comprises a second heat exchanger, a first turbine and a first generator, the third heat exchange medium exchanges heat with the first heat exchange medium through the second heat exchanger, a rotating shaft of the first turbine is in driving connection with a rotating shaft of the first generator, the second heat exchanger is in communication with the first turbine, and the third heat exchange medium is used for driving the first turbine to rotate and flow back to the second heat exchanger.
3. The nuclear reactor power generating system of claim 2, wherein the power generating module further comprises a second power generating module comprising a fourth heat exchanger, a second turbine, and a second generator, a shaft of the second turbine in driving connection with a shaft of the second generator, the fourth heat exchanger in communication with the first turbine and the heat exchange assembly, a fourth heat exchange medium in the fourth heat exchanger for driving the second turbine to rotate and flow back to the fourth heat exchanger.
4. The nuclear reactor power generating system of claim 3, further comprising a third power generating module comprising a fifth heat exchanger, a third turbine and a third generator, wherein the fifth heat exchanger exchanges heat with the first heat exchange medium, a rotating shaft of the third turbine is in driving connection with a rotating shaft of the third generator, the third turbine is communicated with the fourth heat exchanger, the fifth heat exchanger is communicated with the first turbine and the third turbine, and the third heat exchange medium exchanges heat with the first heat exchange medium through the fifth heat exchanger to drive the third turbine to rotate and flow to the fourth heat exchanger.
5. The nuclear reactor power generating system of claim 4 wherein the heat exchange assembly comprises a heat exchanger bank and a cooler, a hot side of the heat exchanger bank being in communication between the fourth heat exchanger and the cooler, the third heat exchanger being in communication with the cooler and a cold side of the heat exchanger bank, the cold side of the heat exchanger bank being in communication with the second heat exchanger.
6. The nuclear reactor power generating system of claim 5, wherein the refrigeration module further comprises a first pressurization assembly comprising a first compressor and a second compressor, the first compressor in communication with the cooler, the third heat exchanger in communication between the first compressor and the second compressor, the second compressor in communication with the cold side of the heat exchanger bank.
7. The nuclear reactor power generating system of claim 6, wherein the refrigeration module further comprises a third compressor, an inlet of the third compressor being in communication with an inlet of the cooler, an outlet of the third compressor being in communication with a cold side of the heat exchanger bank.
8. The nuclear reactor power generating system of claim 7, wherein the input shaft of the first compressor and the input shaft of the second compressor are drivingly connected to the rotating shaft of the third turbine, and wherein the input shaft of the third compressor is drivingly connected to the rotating shaft of the first turbine.
9. The nuclear reactor power generating system of claim 1 wherein the refrigeration assembly comprises an ejector, a condenser, an expansion valve, and an evaporator, at least a portion of the cooling medium flowing through the ejector, the condenser, the expansion valve, and the evaporator in that order.
10. The nuclear reactor power generating system of claim 9, wherein the refrigeration assembly further comprises a cooling medium pump, an inlet of the cooling medium pump being in communication with an outlet of the condenser, an outlet of the cooling medium pump being in communication with a cold side of the third heat exchanger.
11. The nuclear reactor power generating system of claim 3, wherein the second power generating module further comprises a fourth heat exchange medium pump in communication between the second turbine and the fourth heat exchanger.
12. The nuclear reactor power generating system of any one of claims 1-11 further comprising a heat cell into which the first heat exchange medium is introduced, the first heat exchanger and the second heat exchanger both being located in the heat cell to exchange heat with the first heat exchange medium.
13. The nuclear reactor power generating system of any one of claims 1-11 wherein the heating means comprises a process heating means and a customer heating means, the process heating means being in communication between the outlet of the first heat exchanger and the customer heating means, the customer heating means being in communication with the inlet of the first heat exchanger.
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| CN209925091U (en) * | 2019-04-22 | 2020-01-10 | 刘赟 | Hot-flow type power generation device |
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| EP3619722A2 (en) * | 2017-05-05 | 2020-03-11 | TerraPower, LLC | Gas-cooled pressure tube reactor |
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| US3557568A (en) * | 1968-01-19 | 1971-01-26 | Babcock Atlantique Sa | Power generation apparatus |
| JPH06337181A (en) * | 1993-05-26 | 1994-12-06 | Hitachi Plant Eng & Constr Co Ltd | Air-conditioning facility |
| JP2004264261A (en) * | 2003-03-04 | 2004-09-24 | Kawasaki Heavy Ind Ltd | Nuclear fusion power generation system |
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