CN117145716A - Power generation system coupling light energy and nuclear energy - Google Patents
Power generation system coupling light energy and nuclear energy Download PDFInfo
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- CN117145716A CN117145716A CN202311140409.9A CN202311140409A CN117145716A CN 117145716 A CN117145716 A CN 117145716A CN 202311140409 A CN202311140409 A CN 202311140409A CN 117145716 A CN117145716 A CN 117145716A
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- 238000010248 power generation Methods 0.000 title claims abstract description 67
- 230000008878 coupling Effects 0.000 title claims abstract description 15
- 238000010168 coupling process Methods 0.000 title claims abstract description 15
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 15
- 239000002131 composite material Substances 0.000 claims abstract description 11
- 150000003839 salts Chemical class 0.000 claims description 28
- 230000003287 optical effect Effects 0.000 claims description 22
- 150000001875 compounds Chemical class 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 2
- 238000005338 heat storage Methods 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000000498 cooling water Substances 0.000 description 5
- 238000005286 illumination Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- XLYOFNOQVPJJNP-ZSJDYOACSA-N Heavy water Chemical compound [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003758 nuclear fuel Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D5/00—Arrangements of reactor and engine in which reactor-produced heat is converted into mechanical energy
- G21D5/04—Reactor and engine not structurally combined
-
- 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
-
- 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
-
- 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
- F01K13/02—Controlling, e.g. stopping or starting
-
- 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
- F01K21/00—Steam engine plants not otherwise provided for
-
- 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
-
- 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
- F03G6/098—Components, parts or details
-
- 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
Abstract
The invention discloses a power generation system for coupling light energy and nuclear energy, which comprises a nuclear energy power generation thermodynamic subsystem and a light energy subsystem, wherein the nuclear energy power generation thermodynamic subsystem comprises a reactor, a steam generator, a high-temperature heat exchanger, a composite steam turbine and a high-pressure heater which are sequentially connected, the light energy subsystem is further connected between the high-temperature heat exchanger and the composite steam turbine, the steam generator is used for converting nuclear energy transferred by the reactor into steam and transferring the steam to the high-temperature heat exchanger, the composite steam turbine is used for converting heat transferred by the high-temperature heat exchanger into mechanical energy required by power generation, and the light energy subsystem is used for receiving residual heat energy of the composite steam turbine and converging light heat energy of the composite steam turbine to the steam generator. The solar photo-thermal heat storage system and the nuclear power generation system are coupled, and the novel thermal power generation system is constructed, so that the temperature and pressure of main steam can be increased, and the power generation efficiency of the thermal system can be improved.
Description
Technical Field
The invention belongs to the field of power systems, and particularly relates to a power generation system for coupling light energy and nuclear energy.
Background
The secondary loop of the nuclear power generation thermodynamic subsystem is an important component in a nuclear power station and is used for converting heat energy of high-temperature and high-pressure steam generated in the nuclear reactor into mechanical energy and then driving a generator to generate electricity. In the loop, the main steam is saturated steam, the temperature and the pressure are low, so that the heat energy utilization rate of the thermal power generation system of the nuclear power station is low, the heat energy utilization rate is only about 30%, and the power generation efficiency is far lower than that of a coal-fired thermal power plant.
Meanwhile, the solar photo-thermal system serving as clean energy is unstable in heat generation, and the heat generation temperature of the solar photo-thermal system is continuously changed along with the change of outdoor irradiance. Therefore, in general, the photo-thermal power generation system needs to be configured with a large number of heat storage devices to ensure that the photo-thermal system can normally generate power when the illumination resources are insufficient, so that the overall investment of the photo-thermal power generation system is intangibly caused, and the stable operation of the photo-thermal power generation system cannot be ensured.
Disclosure of Invention
The invention overcomes the defects, couples the nuclear power generation and the photo-thermal system, and on one hand, improves the steam temperature and pressure at the outlet of the steam generator of the nuclear power generation system by using the photo-thermal system so as to improve the power generation efficiency of the turbine unit and reduce the manufacturing cost of the turbine. And meanwhile, the heat generated by the photo-thermal is used for further heating the two-loop circulating water before entering the high-pressure heater, so that the steam extraction of the high-pressure cylinder is reduced, and the power generation efficiency and the power generation capacity of the steam turbine are further improved. And when the system is operated, even if the illumination resources are insufficient, the system can still normally and stably operate by means of nuclear energy.
The invention is realized by the following technical scheme:
the utility model provides a power generation system of coupling light energy and nuclear energy, includes nuclear power generation thermodynamic subsystem and light energy subsystem, nuclear power generation thermodynamic subsystem includes reactor, steam generator, high temperature heat exchanger, compound steam turbine, the high pressure heater that connects gradually, still be connected with the light energy subsystem between high temperature heat exchanger and the compound steam turbine, the steam generator is used for converting the nuclear energy of reactor transmission into steam and transmits in high temperature heat exchanger, compound steam turbine is used for converting the heat of high temperature heat exchanger transmission into the required mechanical energy of electricity generation, light energy subsystem receives compound steam turbine surplus heat energy and merges the light heat energy of oneself to steam generator simultaneously.
Preferably, the composite steam turbine includes a high pressure steam turbine for receiving the main steam of the high temperature and high pressure of the steam generator, and extracting the reheat steam of the high pressure heater to increase the steam temperature and pressure in the high pressure steam turbine.
Preferably, the composite steam turbine further comprises a low-pressure steam turbine, the nuclear power generation thermodynamic subsystem further comprises a reheater, one end of the reheater is connected with the high-pressure steam turbine, and the other end of the reheater is connected with the low-pressure steam turbine.
Preferably, a low-pressure heater is also connected between the low-pressure turbine and the high-pressure heater.
Preferably, a condensing system is further arranged between the low-pressure heater and the low-pressure turbine.
Preferably, the condensing system comprises a condenser and a condensate pump which are connected, wherein the condenser is also connected with the low-pressure heater, and the condensate pump is also connected with the low-pressure steam turbine.
Preferably, a thermal deaerator for removing dissolved oxygen or insoluble gas in the water supply is also arranged between the low-pressure heater and the high-pressure heater.
Preferably, the optical energy subsystem comprises a low-temperature heat exchanger and a solar energy field which are connected, wherein the low-temperature heat exchanger is respectively connected with the thermal deaerator, the high-pressure heater, the high-temperature heat exchanger and the solar energy field, and one end of the solar energy field which is not connected with the low-temperature heat exchanger is also connected with the high-temperature heat exchanger.
Preferably, a high-temperature molten salt pump is further arranged between the solar mirror field and the high-temperature heat exchanger.
Preferably, both ends of the solar mirror field are also provided with molten salt storage tanks for storing solar heat.
Compared with the prior art, the power generation system for coupling light energy and nuclear energy has the following advantages and obvious effects:
1. the solar photo-thermal heat storage system and the nuclear power generation system are creatively coupled, and a novel thermal power generation system is constructed, so that the temperature and pressure of main steam can be increased, and the power generation efficiency of the thermal power system is further improved.
2. The invention utilizes the heat generated by the photo-thermal system to heat the backwater of the two loops, thereby reducing the steam extraction of the high-pressure cylinder and improving the generating capacity of the thermodynamic system.
3. When the illumination resource is poor, the invention constructs a stable thermodynamic system through the available nuclear energy of the nuclear power generation thermodynamic subsystem, avoids the defect of unstable photo-thermal power generation system, and reduces the expenditure of configuring a large number of heat storage devices of the photo-thermal power generation system.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a power generation system for coupling optical and nuclear energy according to the present invention;
the codes in the figure are respectively:
1-solar field, 2-high temperature molten salt pump, 3-molten salt storage tank, 4-low temperature heat exchanger, 5-low temperature molten salt pump, 6-reactor, 7-steam generator, 8-high temperature heat exchanger, 9-high pressure turbine, 10-reheater, 11-low pressure turbine, 12-condenser, 13-condensate pump, 14-low pressure heater, 15-thermal deaerator, 16-high pressure heater, 17-primary loop pump, 18-valve, 181-first valve, 182-second valve, 183-third valve, 184-fourth valve, 185-fifth valve, 186-sixth valve;
a-a drainage pipeline, b-a cooling water supply pipeline and c-a cooling water return pipeline.
Embodiment one:
a power generation system for coupling optical energy and nuclear energy comprises an optical energy subsystem and a nuclear energy power generation thermodynamic subsystem. Specifically, as shown in fig. 1, the optical energy subsystem includes a solar mirror field 1, a molten salt storage tank 3 and a low-temperature molten salt pump 5 which are sequentially connected, and the low-temperature molten salt pump 5 is also connected with the solar mirror field 1 to form a thermal energy loop of the optical energy subsystem. The joint of the solar energy mirror field 1 and the fused salt storage tank 3 is also connected with a high-temperature fused salt pump 2 which transmits the high-temperature fused salt generated by the optical energy subsystem to the nuclear power generation thermodynamic subsystem.
Specifically, the solar mirror field 1: is an area composed of a large number of reflectors (collecting mirrors) for collecting sunlight for heat collection;
molten salt storage tank 3: the solar energy mirror field 1 is used for heating the light and heat concentrated by the solar energy mirror field 1 to a high temperature state through a fused salt medium and storing heat energy into the fused salt storage tank 3;
low temperature molten salt pump 5: for pumping the low temperature molten salt stored in the molten salt storage tank 3 to a thermal energy conversion system for reheating. Meanwhile, when the heat energy is insufficient, the low-temperature molten salt pump 5 pumps molten salt out of the storage tank and conveys the molten salt to the high-temperature molten salt pump 2, and the heat of the nuclear energy system is utilized for high-temperature heating.
High temperature molten salt pump 2: the system is used for conveying salt substances which are melted at high temperature in the molten salt storage tank 3 to the nuclear power generation thermodynamic subsystem so as to supply heat energy to the nuclear power generation thermodynamic subsystem.
The nuclear power generation thermodynamic subsystem comprises a reactor 6, a steam generator 7 and a primary loop pump 17 which are connected in sequence. Specifically, the reactor 6 is connected to a first inlet end 71 of the steam generator 7, and a first outlet end 72 of the steam generator 7 is connected to a primary loop pump 17 to form a first loop of the nuclear power generating thermal subsystem.
The nuclear fuel undergoes a controlled nuclear chain reaction in the reactor 6, producing a large amount of thermal energy which is used to heat the working fluid (water) in a circuit, the high temperature and high pressure working fluid in the circuit being in heat exchange relationship with the coolant (typically light or heavy water) in the reactor 6 via the heat transfer surfaces of the steam generator 7. In this way, the heat energy in the primary circuit is transferred to the steam generator, heating the water to high temperature and pressure steam.
The nuclear power generation thermodynamic subsystem further comprises a high-temperature heat exchanger 8, a composite steam turbine and a high-pressure heater 16 which are connected in sequence, wherein the composite steam turbine comprises a high-pressure steam turbine 9 and a low-pressure steam turbine 11. Specifically, the second outlet end 74 of the steam generator 7 is connected to the high-temperature heat exchanger 8, the high-pressure turbine 9, the high-pressure heater 16, and the second inlet end 73 of the steam generator 7 in this order, forming a second circuit.
Specifically, in the second circuit, the second outlet end 74 of the steam generator 7 is connected with the first inlet end 81 of the high-temperature heat exchanger 8 through a first valve 181, the first outlet end 82 of the high-temperature heat exchanger 8 is connected with the first inlet end 91 of the high-pressure turbine 9 through a third valve 183, and a second valve 182 is also connected between the first valve 181 and the third valve 183; the first outlet 93 of the high pressure turbine 9 is connected to the third end 163 of the high pressure heater 16, for extracting the steam in the high pressure heater 16 that can be used satisfactorily, and at the same time, the steam in the high pressure heater 16 can be transferred to the second inlet 73 of the steam generator 7 for recycling.
In correspondence with the above connection mode, the overall design is to make the high pressure turbine 9 drive a generator by using the expansion principle of the steam to generate electric energy through the transmitted steam. The method comprises the following steps: the steam generated by the steam generator 7 is transmitted to the high-pressure steam turbine 9 through the high-temperature heat exchanger 8, so that the high-pressure steam turbine 9 converts nuclear energy heat into mechanical energy for power generation; since the high-pressure turbine 9 can provide higher power output only when working under the environment of high temperature and high pressure, the connection part of the steam generator 7 and the high-temperature heat exchanger 8 is also connected with the high-pressure turbine 9 through the second valve 182, if the second valve 182 is opened, the steam in the steam generator 7 can be directly led to the high-pressure turbine 9.
The nuclear power generation thermodynamic subsystem further comprises a reheater 10 arranged between the high-pressure turbine 9 and the low-pressure turbine 11 and used for receiving the steam flowing out of the high-pressure turbine 9 and reheating the steam to raise the temperature. The reheated high-temperature steam flows back to the high-pressure turbine 9 from the first outlet 101 of the reheater 10, and flows out from the outlet 102 of the reheater 10 into the low-pressure turbine 11. At this time, the steam is further expanded in the low-pressure turbine to release the residual energy, and the low-pressure turbine 11 continues to convert the energy of the steam into mechanical energy and continues to drive the generator to generate electricity. And meanwhile, the water drain pipeline a is connected to the reheater 10 and is used for effectively removing condensed water in the reheater so as to ensure the normal operation of the reheater and improve the efficiency of the system.
The nuclear power generation thermodynamic subsystem further comprises a condensing system, a low-pressure heater 14 and a thermodynamic deaerator 15 which are sequentially connected with the low-pressure turbine 11. The thermal deaerator 15 is also connected to a high-pressure heater. Specifically, the condensing system comprises a condenser 12 and a condensate pump 13 which are connected, wherein a cooling water supply pipeline b and a cooling water return pipeline c are arranged on the condenser 12 and are used for connecting cooling water. The steam transmitted by the low-pressure turbine is cooled and then led to a low-pressure heater 14 through a condensate pump 13, and the low-pressure heater is connected with the low-pressure turbine 11 on one hand and is used for providing low-pressure conditions for the low-pressure turbine 11, and is connected with a thermal deaerator 15 on the other hand and is connected to the low-pressure turbine 11 again through the thermal deaerator 15, so that dissolved oxygen in water is removed, and corrosion and oxidation problems of equipment are reduced.
The thermal deaerator 15 is also connected with a high-pressure heater, and a sixth valve 186 is arranged at the connecting pipeline of the thermal deaerator 15 and is used for forming a nuclear energy loop of main steam through a high-pressure steam turbine, a low-pressure steam turbine, a cooling system and impurity removal when the thermal deaerator is closed; and meanwhile, a nuclear energy loop for recycling heat energy of main steam through a high-pressure turbine, a low-pressure turbine, a cooling system, impurity removal, high-temperature heating and a return steam generator can be formed by opening. More importantly, here, two ends of the sixth valve 186 are provided with the cryogenic heat exchanger 4 connected with the optical energy subsystem, one end of the sixth valve 186 is connected with the fourth end 44 of the cryogenic heat exchanger 4 through the fifth valve 185, the other end of the sixth valve 186 is connected with the third end 43 of the cryogenic heat exchanger 4 through the fourth valve 184, the second end 42 of the cryogenic heat exchanger 4 is also connected with the cryogenic molten salt pump 5 as output, and the thermal energy of the steam filtered by the thermal deaerator 15 in the nuclear energy system is introduced into the optical energy subsystem through the fourth end 44 of the cryogenic heat exchanger 4 or the third end 43 of the cryogenic heat exchanger 4, meanwhile, the first end 41 of the cryogenic heat exchanger 4 is connected with the second outlet end 84 of the high-temperature heat exchanger 8 to supplement energy when the optical energy is insufficient.
It should be added that the high-temperature molten salt pump 2 in the optical energy subsystem is connected to the second input end of the high-temperature heat exchanger 8 of the nuclear power generation thermodynamic subsystem, so as to be connected to the energy storage component of the optical energy subsystem to realize heat energy circulation. The cryogenic heat exchanger 4 here is completed to receive the low thermal energy from the nuclear energy and also to enter the high temperature heating of the optical energy subsystem for recycling the energy.
When the first loop of the nuclear power generation thermodynamic subsystem works, and when the illumination resource is poor, a stable thermodynamic system is built through the available nuclear energy of the nuclear power generation thermodynamic subsystem, so that the defect of instability of the photo-thermal power generation system is avoided, and the expenditure of configuring a large number of heat storage devices of the photo-thermal power generation system is reduced. When the power generation requirement is relatively large, the nuclear power generation thermodynamic subsystem and the optical energy subsystem work simultaneously, the heat generated by the optical heating system is utilized to heat the backwater of the two loops, the steam extraction of the high-pressure cylinder can be reduced, the power generation capacity of the thermodynamic system is improved, the temperature and the pressure of main steam are improved, the power generation efficiency of the thermodynamic system is improved, and the working pressure of the steam turbine can be reduced.
The process adopts a scheme that the photonuclear is matched with energy storage to improve steam quality, and the coupling steam supply of nuclear energy and new energy is realized. Meanwhile, a valve is arranged at the joint of the nuclear power generation thermodynamic subsystem and the optical energy subsystem, and the independent work of the nuclear power generation thermodynamic subsystem and the optical energy subsystem can be realized by controlling the opening and closing of the valve; after opening, co-operation can be achieved. When the device works together, the energy storage and photo-thermal conversion are adopted to improve the steam quality from the aspect of coupling nuclear energy and other clean energy sources for steam supply, and the device has important contribution to carbon emission reduction.
The above examples are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall within the protection scope of the present invention without departing from the design spirit of the present invention.
Claims (10)
1. The utility model provides a power generation system of coupling light energy and nuclear energy, its characterized in that includes nuclear energy power generation thermodynamic subsystem and light energy subsystem, nuclear energy power generation thermodynamic subsystem includes reactor, steam generator, high temperature heat exchanger, compound steam turbine, the high pressure heater that connects gradually, still be connected with the light energy subsystem between high temperature heat exchanger and the compound steam turbine, the steam generator is used for converting the nuclear energy of reactor transmission into steam and transmits in high temperature heat exchanger, the compound steam turbine is used for converting the heat of high temperature heat exchanger transmission into the required mechanical energy of electricity generation, light energy subsystem receives compound steam turbine surplus heat energy and merges self light heat energy simultaneously to steam generator.
2. The power generation system of claim 1, wherein the composite turbine comprises a high pressure turbine connected at one end to a high temperature heat exchanger and at the other end to a high pressure heater for receiving the high temperature and high pressure main steam from the steam generator and for extracting the reheat steam from the high pressure heater to increase the steam temperature and pressure in the high pressure turbine.
3. The power generation system of claim 2, wherein the composite turbine further comprises a low pressure turbine, and the nuclear power generation thermal subsystem further comprises a reheater, wherein one end of the reheater is connected to the high pressure turbine, and the other end of the reheater is connected to the low pressure turbine.
4. A power generation system coupling optical energy and nuclear energy according to claim 2 or 3, wherein a low pressure heater is further connected between the low pressure turbine and the high pressure heater.
5. The power generation system for coupling optical and nuclear energy of claim 4 wherein a condensing system is further provided between the low pressure heater and the low pressure turbine.
6. The power generation system of claim 5, wherein the condensing system comprises a condenser and a condensate pump connected, the condenser further connected to the low pressure heater, and the condensate pump further connected to the low pressure turbine.
7. The power generation system for coupling optical and nuclear energy of claim 4, wherein a thermal deaerator for removing dissolved oxygen or insoluble gases from the feedwater is further disposed between the low pressure heater and the high pressure heater.
8. The power generation system of claim 7, wherein the optical subsystem comprises a cryogenic heat exchanger and a solar farm connected, the cryogenic heat exchanger being connected to the thermal deoxygenator, the high pressure heater, the high temperature heat exchanger, and the solar farm, respectively, and the solar farm being connected to the high temperature heat exchanger at an end not connected to the cryogenic heat exchanger.
9. The power generation system of claim 8, wherein a high temperature molten salt pump is further disposed between the solar field and the high temperature heat exchanger.
10. The power generation system for coupling optical energy and nuclear energy of claim 9 wherein said solar field is further provided with molten salt storage tanks at both ends for storing solar heat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311140409.9A CN117145716A (en) | 2023-09-06 | 2023-09-06 | Power generation system coupling light energy and nuclear energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311140409.9A CN117145716A (en) | 2023-09-06 | 2023-09-06 | Power generation system coupling light energy and nuclear energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117145716A true CN117145716A (en) | 2023-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311140409.9A Pending CN117145716A (en) | 2023-09-06 | 2023-09-06 | Power generation system coupling light energy and nuclear energy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117145716A (en) |
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2023
- 2023-09-06 CN CN202311140409.9A patent/CN117145716A/en active Pending
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