CN214660666U - Photovoltaic, photo-thermal, heat-storage and heat-management power generation system - Google Patents

Photovoltaic, photo-thermal, heat-storage and heat-management power generation system Download PDF

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CN214660666U
CN214660666U CN202121156575.4U CN202121156575U CN214660666U CN 214660666 U CN214660666 U CN 214660666U CN 202121156575 U CN202121156575 U CN 202121156575U CN 214660666 U CN214660666 U CN 214660666U
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power generation
temperature
communicated
inlet
generation system
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李红智
高炜
姚明宇
李晓照
张纯
张旭伟
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Xian Thermal Power Research Institute Co Ltd
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Xian Thermal Power Research Institute Co Ltd
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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
    • 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
    • Y02E10/50—Photovoltaic [PV] energy

Abstract

The utility model discloses a photovoltaic, light and heat, heat-retaining and thermal management's power generation system, this system include fused salt heat-retaining system, supercritical CO2Brayton cycle photo-thermal power generation system, photovoltaic power generation system, cold storage and cooling system. The system combines a photovoltaic power generation system and a photo-thermal power generation system, and adopts light with low cost and relatively high technical maturityThe photovoltaic power generation system is combined with a thermal energy storage and thermal power generation system to serve as a photovoltaic power generation regulation and supplement power supply system, so that the investment cost of the power generation system can be kept low, the stability of power output can be realized, meanwhile, a cold storage technology is adopted, high-temperature cooling water at high ambient temperature in the daytime is stored, wind cooling is carried out when the ambient temperature at night is lowered to be low, the self-consumption power for cooling is saved, and the efficiency of the photovoltaic and photo-thermal system and the comprehensive overall power generation efficiency are further improved.

Description

Photovoltaic, photo-thermal, heat-storage and heat-management power generation system
Technical Field
The utility model relates to a power generation system, concretely relates to power generation system of photovoltaic, light and heat, heat-retaining and heat management.
Background
Under the large background of energy shortage and environmental crisis, increasing attention is paid to improving energy utilization rate. Solar energy is an inexhaustible clean energy, and in the current stage, the technology of solar photovoltaic is relatively mature, the application is photovoltaic, but the energy storage is difficult to solve. However, the photovoltaic power generation system is difficult to store energy, the current mature photovoltaic energy storage matching mode is still battery energy storage, but the manufacturing cost of the battery energy storage is always too high, meanwhile, accidents such as fire disasters are difficult to avoid, and for large-scale energy storage requirements of power plants at such power levels, various types of battery energy storage are difficult to popularize at present. In addition, although the theoretical efficiency of photovoltaic power generation is high, the efficiency of the solar photovoltaic panel linearly decreases with an increase in temperature, and therefore the solar photovoltaic panel must be cooled. Meanwhile, as the theoretical thermal efficiency of the solar photo-thermal power generation is high during high-temperature heat collection, and the problem of uneven solar time distribution can be solved by using cheaper heat storage and energy storage in theory, the photo-thermal power generation is also increasingly emphasized.
However, solar thermal power generation has the difficulty that the cost is too high and the popularization is difficult, on the other hand, the price of photovoltaic power generation is reduced to be very low after years of development, and the state gradually reduces the price of electricity for the photovoltaic power generation. If the two can be combined together, a part of photovoltaic power generation systems which are cheap and have relatively high technical maturity are adopted, and then the thermal energy storage and thermal power generation systems are combined to serve as the regulation and supplement power supply systems for photovoltaic power generation, so that the relatively low investment cost of the power generation systems can be maintained, and the stability of power output can be realized. Meanwhile, since the photothermal power generation system itself needs to be equipped with a cooling system, the cooling of the photothermal power generation system and the cooling of the photovoltaic power generation system can be designed together, which can further make the system compact and save costs.
On the other hand, the supercritical brayton cycle is currently the most advantageous form of cycle among the many thermodynamic cycles. The novel supercritical working medium (carbon dioxide, helium, dinitrogen oxide and the like) has the inherent advantages of high energy density, high heat transfer efficiency, simple system and the like, can greatly improve the heat-work conversion efficiency, reduces the equipment volume and has very high economical efficiency.
Disclosure of Invention
In order to overcome the problems existing in the prior art, the utility model aims to realize solar power generation's energy storage under the prerequisite of maintaining lower investment cost, provide a photovoltaic, light and heat, heat-retaining and thermal management's power generation system.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a photovoltaic, photo-thermal, heat storage and thermal management power generation system comprises a molten salt heat storage system and supercritical CO2The system comprises a Brayton cycle photo-thermal power generation system, a photovoltaic power generation system and a cold storage and cooling system;
the molten salt heat storage system comprises a heat collector 1-1, a high-temperature molten salt tank 1-2, a low-temperature molten salt tank 1-3 and a molten salt pump 1-4, wherein an outlet of the heat collector 1-1 is communicated with an inlet of the high-temperature molten salt tank 1-2, and an outlet of the high-temperature molten salt tank 1-2 is communicated with supercritical CO2A fused salt side inlet of a fused salt heat exchanger 2-1 of the Brayton cycle photo-thermal power generation system is communicated, a fused salt side outlet of the fused salt heat exchanger 2-1 is communicated with an inlet of a low-temperature fused salt tank 1-3, an outlet of the low-temperature fused salt tank 1-3 is communicated with an inlet of a fused salt pump 1-4, and an outlet of the fused salt pump 1-4 is communicated with an inlet of a heat collector 1-1;
the supercritical CO2The Brayton cycle photo-thermal power generation system comprises a fused salt heat exchanger 2-1 and CO22-2 parts of turbine, 2-3 parts of high-temperature heat regenerator, 2-4 parts of low-temperature heat regenerator, 2-5 parts of recompressor, 2-6 parts of precooler, 2-7 parts of main compressor and 2-1 parts of molten salt heat exchanger2Side outlet with CO2Inlet of turbine 2-2 is connected to CO2An outlet of the turbine 2-2 is communicated with a hot side inlet of the high-temperature heat regenerator 2-3, a hot side outlet of the high-temperature heat regenerator 2-3 is communicated with a hot side inlet of the low-temperature heat regenerator 2-4, a hot side outlet of the low-temperature heat regenerator 2-4 is divided into two paths, one path is communicated with an inlet of a recompressor 2-5, the other path is communicated with a hot side inlet of a precooler 2-6, a hot side outlet of the precooler 2-6 is communicated with an inlet of a main compressor 2-7, an outlet of the main compressor 2-7 is communicated with a cooling inlet of the low-temperature heat regenerator 2-4, a cold side outlet of the low-temperature heat regenerator 2-4 is communicated with a cooling inlet of the high-temperature heat regenerator 2-3 after being converged with an outlet of the recompressor 2-5, and a cold side outlet of the high-temperature heat regenerator 2-3 is communicated with CO of the molten salt heat exchanger 2-1.2The side inlets are communicated;
the cold storage and cooling system comprises a high-temperature water storage tank 4-1, an air-cooled cooling tower 4-2, a low-temperature water storage tank 4-3 and a water pump 4-4, wherein an outlet of the high-temperature water storage tank 4-1 is communicated with an inlet of the air-cooled cooling tower 4-2, an outlet of the air-cooled cooling tower 4-2 is communicated with an inlet of the low-temperature water storage tank 4-3, an outlet of the low-temperature water storage tank 4-3 is communicated with an inlet of the water pump 4-4, an outlet of the water pump 4-4 is divided into two paths, one path is communicated with a cold-side inlet of the precooler 2-6, the other path is communicated with a cooling water inlet of the photovoltaic power generation system, and a cold-side outlet of the precooler 2-6 and a cooling water outlet of the photovoltaic power generation system are communicated with an inlet of the high-temperature water storage tank 4-1 after being converged.
The operation method of the photovoltaic, photothermal, heat storage and heat management power generation system mainly comprises the steps that in the day with sufficient sunlight, the photovoltaic power generation system generates power, the molten salt heat storage system stores heat, low-temperature molten salt in the low-temperature molten salt tank 1-3 is conveyed to the heat collector 1-1 through the molten salt pump 1-4, and the heat absorbed in the heat collector 1-1 is changed into high-temperature molten salt which is then stored in the high-temperature molten salt tank 1-2 for use when needed. Meanwhile, the cold storage and cooling system conveys cooling water for the photovoltaic power generation system, low-temperature cooling water stored in the low-temperature water storage tank 4-3 is conveyed to the photovoltaic power generation system by the water pump 4-4 for cooling, and after heat emitted by the photovoltaic power generation system is absorbed, high-temperature cooling water enters the high-temperature water storage tank 4-1 for storage;
supercritical CO in the absence of sunlight at night2The Brayton cycle photo-thermal power generation system starts to operate and outputs electric energy, the high-temperature molten salt tank 1-2 is opened at first, high-temperature molten salt in the high-temperature molten salt tank 1-2 enters the molten salt heat exchanger 2-1 to release heat at the molten salt side, low-temperature molten salt after heat release returns to the low-temperature molten salt tank 1-3 to be stored, and meanwhile high-pressure supercritical CO is stored in the low-temperature molten salt tank 1-322-1CO entering a molten salt heat exchanger2Side heat absorption, high temperature and high pressure supercritical CO2Into CO2Turbine 2-2 does work, low pressure CO after doing work2Enters the hot side of the high-temperature regenerator 2-3 to release heat, then enters the hot side of the low-temperature regenerator 2-4 to continue releasing heat, and then CO2Is divided into two paths, one path enters a re-compressor 2-5 to be directly pressurized, the other path enters a precooler 2-6 to be cooled, and cooled CO2Then enters the main compressor 2-7 to be pressurized, and high-pressure CO is obtained2Enters the cold side of a low-temperature heat regenerator 2-4 to absorb heat, and then is mixed with high-pressure CO discharged from a recompressor 2-52Converging, entering a cold side of a high-temperature heat regenerator 2-3 to absorb heat, and then entering a molten salt heat exchanger 2-1 to cool and absorb heat to complete the whole cycle; meanwhile, the cold storage and cooling system is supercritical CO2The Brayton cycle photo-thermal power generation system conveys cooling water and cools the cooling water in the high-temperature water storage tank 4-1, and the low-temperature cooling water stored in the low-temperature water storage tank 4-3 is conveyed to the water side of the precooler 2-6 by the water pump 4-4 to absorb CO2After the heat is emitted, high-temperature cooling water enters the high-temperature water storage tank 4-1, the high-temperature cooling water in the high-temperature water storage tank 4-1 enters the air-cooled cooling tower 4-2 to be cooled, and then returns to the low-temperature water storage tank 4-3 to be stored;
when the photovoltaic power generation system is short of power supply and the fused salt heat storage system has stored heat, the photovoltaic power generation system and the supercritical CO2The Brayton cycle photo-thermal power generation system operates simultaneously to output electric energy, and at the moment, the cold storage and cooling system is a photovoltaic power generation system and supercritical CO2The Brayton cycle photo-thermal power generation system simultaneously provides low-temperature cooling water, and the photovoltaic power generation system and the supercritical CO2The operation flow of the Brayton cycle photo-thermal power generation system is the same as that of the independent operation。
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model relates to a photovoltaic, light and heat, the power generation system of heat-retaining and heat management, combine photovoltaic power generation system and light and heat power generation system, adopt the photovoltaic power generation system that the partial low price and technical maturity are relatively higher, reunion heat energy storage and thermal power generation system are as photovoltaic power generation's regulation and supplementary power supply system, then both can maintain than lower power generation system investment cost, can realize power output's stability again, and simultaneously, cold storage technique has still been adopted, the high temperature cooling water storage when environmental temperature is higher daytime, wait night environmental temperature to carry out wind-force cooling again when lower, save the cooling and further improved photovoltaic and light and heat system own efficiency and synthesize whole generating efficiency with the power consumption.
Drawings
Fig. 1 is a schematic structural diagram of the system of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings:
as shown in figure 1, the photovoltaic, photothermal, heat storage and heat management power generation system comprises a molten salt heat storage system and supercritical CO2The system comprises a Brayton cycle photo-thermal power generation system, a photovoltaic power generation system and a cold storage and cooling system;
the molten salt heat storage system comprises a heat collector 1-1, a high-temperature molten salt tank 1-2, a low-temperature molten salt tank 1-3 and a molten salt pump 1-4, wherein an outlet of the heat collector 1-1 is communicated with an inlet of the high-temperature molten salt tank 1-2, an outlet of the high-temperature molten salt tank 1-2 is communicated with a molten salt side inlet of a molten salt heat exchanger 2-1, a molten salt side outlet of the molten salt heat exchanger 2-1 is communicated with an inlet of the low-temperature molten salt tank 1-3, an outlet of the low-temperature molten salt tank 1-3 is communicated with an inlet of the molten salt pump 1-4, and an outlet of the molten salt pump 1-4 is communicated with an inlet of the heat collector 1-1;
the supercritical CO2The Brayton cycle photo-thermal power generation system comprises a fused salt heat exchanger 2-1 and CO2Turbine 2-2, high temperature heat regenerator 2-3, low temperature heat regenerator 2-4, recompressor 2-5, precooler 2-6 and main compressor 2-CO of molten salt heat exchanger 2-12Side outlet with CO2Inlet of turbine 2-2 is connected to CO2An outlet of the turbine 2-2 is communicated with a hot side inlet of the high-temperature heat regenerator 2-3, a hot side outlet of the high-temperature heat regenerator 2-3 is communicated with a hot side inlet of the low-temperature heat regenerator 2-4, a hot side outlet of the low-temperature heat regenerator 2-4 is divided into two paths, one path is communicated with an inlet of a recompressor 2-5, the other path is communicated with a hot side inlet of a precooler 2-6, a hot side outlet of the precooler 2-6 is communicated with an inlet of a main compressor 2-7, an outlet of the main compressor 2-7 is communicated with a cooling inlet of the low-temperature heat regenerator 2-4, a cold side outlet of the low-temperature heat regenerator 2-4 is communicated with a cooling inlet of the high-temperature heat regenerator 2-3 after being converged with an outlet of the recompressor 2-5, and a cold side outlet of the high-temperature heat regenerator 2-3 is communicated with CO of the molten salt heat exchanger 2-1.2The side inlets are communicated;
the cold storage and cooling system comprises a high-temperature water storage tank 4-1, an air-cooled cooling tower 4-2, a low-temperature water storage tank 4-3 and a water pump 4-4, wherein an outlet of the high-temperature water storage tank 4-1 is communicated with an inlet of the air-cooled cooling tower 4-2, an outlet of the air-cooled cooling tower 4-2 is communicated with an inlet of the low-temperature water storage tank 4-3, an outlet of the low-temperature water storage tank 4-3 is communicated with an inlet of the water pump 4-4, an outlet of the water pump 4-4 is divided into two paths, one path is communicated with a cold-side inlet of the precooler 2-6, the other path is communicated with a cooling water inlet of the photovoltaic panel 3, and a cold-side outlet of the precooler 2-6 and a cooling water outlet of the photovoltaic panel 3 are communicated with an inlet of the high-temperature water storage tank 4-1 after being converged.
As a preferred embodiment of the present invention, the photovoltaic power generation system is composed of a plurality of photovoltaic panels 3 connected in parallel.
As a preferred embodiment of the present invention, the supercritical CO2The inlet pressure of the main compressor 2-7 in the Brayton cycle photo-thermal power generation system is 7.2 MPa-8.0 MPa, the outlet pressure is 24 MPa-30 MPa, the power consumption of the main compressor 2-7 in the pressure range is minimum, and simultaneously CO is generated2Turbine 2-2 has sufficient pressure drop space so that the system is thermally efficient.
The utility model discloses the concrete working process of system does:
a photovoltaic, photo-thermal, heat storage and thermal management power generation system and an operation method thereof are disclosed, in the daytime of sufficient sunshine, a photovoltaic power generation system is mainly used for generating power, a molten salt heat storage system stores heat, low-temperature molten salt in a low-temperature molten salt tank 1-3 is conveyed to a heat collector 1-1 through a molten salt pump 1-4, and the heat is absorbed in the heat collector 1-1 to be changed into high-temperature molten salt which is then stored in a high-temperature molten salt tank 1-2 for use when needed. Meanwhile, the cold storage and cooling system conveys cooling water for the photovoltaic power generation system, the low-temperature cooling water stored in the low-temperature water storage tank 4-3 is conveyed to the photovoltaic power generation system by the water pump 4-4 for cooling, and after the heat emitted by the photovoltaic power generation system is absorbed, the high-temperature cooling water enters the high-temperature water storage tank 4-1 for storage.
Supercritical CO in the absence of sunlight at night2The Brayton cycle photo-thermal power generation system starts to operate and outputs electric energy, the high-temperature molten salt tank 1-2 is opened at first, high-temperature molten salt in the high-temperature molten salt tank 1-2 enters the molten salt heat exchanger 2-1 to release heat at the molten salt side, low-temperature molten salt after heat release returns to the low-temperature molten salt tank 1-3 to be stored, and meanwhile high-pressure supercritical CO is stored in the low-temperature molten salt tank 1-322-1CO entering a molten salt heat exchanger2Side heat absorption, high temperature and high pressure supercritical CO2Into CO2Turbine 2-2 does work, low pressure CO after doing work2Enters the hot side of the high-temperature regenerator 2-3 to release heat, then enters the hot side of the low-temperature regenerator 2-4 to continue releasing heat, and then CO2Is divided into two paths, one path enters a re-compressor 2-5 to be directly pressurized, the other path enters a precooler 2-6 to be cooled, and cooled CO2Then enters the main compressor 2-7 to be pressurized, and high-pressure CO is obtained2Enters the cold side of a low-temperature heat regenerator 2-4 to absorb heat, and then is mixed with high-pressure CO discharged from a recompressor 2-52Converging, entering a cold side of a high-temperature heat regenerator 2-3 to absorb heat, and then entering a molten salt heat exchanger 2-1 to cool and absorb heat to complete the whole cycle. Meanwhile, the cold storage and cooling system is supercritical CO2The Brayton cycle photo-thermal power generation system conveys cooling water and cools the cooling water in the high-temperature water storage tank 4-1, and the low-temperature cooling water stored in the low-temperature water storage tank 4-3 is conveyed to the water side of the precooler 2-6 by the water pump 4-4 to absorb CO2After the heat is radiated, the high-temperature cooling water enters the high-temperature water storage tank 4-1, the high-temperature cooling water in the high-temperature water storage tank 4-1 enters the air-cooled cooling tower 4-2 to be cooled, and then returns to the low-temperature water storage tank 4-3 to be stored.
When the photovoltaic power generation system is short of power supply and the fused salt heat storage system has stored heat, the photovoltaic power generation system and the supercritical CO2The Brayton cycle photo-thermal power generation system operates simultaneously to output electric energy, and at the moment, the cold storage and cooling system is a photovoltaic power generation system and supercritical CO2The Brayton cycle photo-thermal power generation system simultaneously provides low-temperature cooling water, and the photovoltaic power generation system and the supercritical CO2The operation flow of the Brayton cycle photo-thermal power generation system is the same as that of the independent operation.
But supercritical CO as shown in FIG. 12Other overall arrangement of brayton cycle power generation system do not influence the utility model discloses an use, the utility model discloses a content is also suitable for to other overall arrangements of supercritical cycle system, consequently the utility model provides a supercritical brayton cycle system is the supercritical brayton cycle system in the broad meaning, and not confine the drawing to the overall arrangement. For example, other supercritical brayton cycle systems may employ a multi-stage turbine system, or a turbine system with reheat, or may not employ a split recompression system, i.e., only a single main compressor, no recompressor, and combining two regenerators into one regenerator, etc.
The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (3)

1. A photovoltaic, photo-thermal, heat storage and thermal management power generation system is characterized by comprising a molten salt heat storage system and supercritical CO2The system comprises a Brayton cycle photo-thermal power generation system, a photovoltaic power generation system and a cold storage and cooling system;
the molten salt heat storage system comprises a heat collector (1-1), a high-temperature molten salt tank (1-2), a low-temperature molten salt tank (1-3) and a molten salt pump (1-4), wherein an outlet of the heat collector (1-1) is communicated with an inlet of the high-temperature molten salt tank (1-2)The outlet of the high-temperature molten salt tank (1-2) and the supercritical CO2A fused salt side inlet of a fused salt heat exchanger (2-1) of the Brayton cycle photo-thermal power generation system is communicated, a fused salt side outlet of the fused salt heat exchanger (2-1) is communicated with an inlet of a low-temperature fused salt tank (1-3), an outlet of the low-temperature fused salt tank (1-3) is communicated with an inlet of a fused salt pump (1-4), and an outlet of the fused salt pump (1-4) is communicated with an inlet of a heat collector (1-1);
the supercritical CO2The Brayton cycle photo-thermal power generation system comprises a fused salt heat exchanger (2-1) and CO2Turbine (2-2), high-temperature heat regenerator (2-3), low-temperature heat regenerator (2-4), secondary compressor (2-5), precooler (2-6), main compressor (2-7), CO of molten salt heat exchanger (2-1)2Side outlet with CO2Inlet of turbine (2-2) is connected to CO2The outlet of the turbine (2-2) is communicated with the hot side inlet of the high temperature regenerator (2-3), the hot side outlet of the high temperature regenerator (2-3) is communicated with the hot side inlet of the low temperature regenerator (2-4), the hot side outlet of the low temperature regenerator (2-4) is divided into two paths, one path is communicated with the inlet of the recompressor (2-5), the other path is communicated with the hot side inlet of the precooler (2-6), the hot side outlet of the precooler (2-6) is communicated with the inlet of the main compressor (2-7), the outlet of the main compressor (2-7) is communicated with the cooling inlet of the low temperature regenerator (2-4), the cold side outlet of the low temperature regenerator (2-4) is communicated with the cooling inlet of the high temperature regenerator (2-3) after being converged with the outlet of the recompressor (2-5), the cold side outlet of the high-temperature heat regenerator (2-3) and CO of the molten salt heat exchanger (2-1)2The side inlets are communicated;
the cold storage and cooling system comprises a high-temperature water storage tank (4-1) and an air cooling tower (4-2), the water cooling system comprises a low-temperature water storage tank (4-3) and a water pump (4-4), wherein an outlet of the high-temperature water storage tank (4-1) is communicated with an inlet of an air cooling tower (4-2), an outlet of the air cooling tower (4-2) is communicated with an inlet of the low-temperature water storage tank (4-3), an outlet of the low-temperature water storage tank (4-3) is communicated with an inlet of the water pump (4-4), an outlet of the water pump (4-4) is divided into two paths, one path is communicated with a cold-side inlet of a precooler (2-6), the other path is communicated with a cooling water inlet of the photovoltaic power generation system, and a cold-side outlet of the precooler (2-6) and a cooling water outlet of the photovoltaic power generation system are communicated with an inlet of the high-temperature water storage tank (4-1) after being converged.
2. A photovoltaic, photothermal, thermal storage and management power generation system according to claim 1, characterized in that it consists of a plurality of photovoltaic panels (3) connected in parallel.
3. The photovoltaic, photothermal, thermal storage and thermal management power generation system of claim 1 wherein said supercritical CO2The inlet pressure of a main compressor (2-7) of the Brayton cycle photo-thermal power generation system is 7.2MPa to 8.0MPa, and the outlet pressure is 24MPa to 30 MPa.
CN202121156575.4U 2021-05-27 2021-05-27 Photovoltaic, photo-thermal, heat-storage and heat-management power generation system Active CN214660666U (en)

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