CN216429700U - Waste heat cascade utilization system based on compressed air energy storage - Google Patents
Waste heat cascade utilization system based on compressed air energy storage Download PDFInfo
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- CN216429700U CN216429700U CN202123017234.1U CN202123017234U CN216429700U CN 216429700 U CN216429700 U CN 216429700U CN 202123017234 U CN202123017234 U CN 202123017234U CN 216429700 U CN216429700 U CN 216429700U
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- 238000004146 energy storage Methods 0.000 title claims abstract description 38
- 239000002918 waste heat Substances 0.000 title claims abstract description 27
- 238000005338 heat storage Methods 0.000 claims abstract description 93
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 2
- 239000001569 carbon dioxide Substances 0.000 abstract description 2
- 230000002427 irreversible effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 238000007906 compression Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 241001453233 Doodia media Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000012423 maintenance Methods 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
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
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- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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Abstract
The utility model belongs to the technical field of energy storage, in particular to a waste heat cascade utilization system based on compressed air energy storage, which comprises a compressed air energy storage module, a solar heat collection module and a cascade heat storage utilization module, wherein the integrated solar heat collection module is used for heating turbine inlet air, thereby solving the problem of limited air temperature in an adiabatic compressed air energy storage system, ensuring the high-efficiency operation of the system, respectively storing waste heat of different grades in different heat storage tanks according to the quality of the waste heat through the cascade heat storage utilization module, reducing the irreversible energy loss caused when high-temperature fluid and low-temperature fluid are mixed, effectively improving the comprehensive efficiency of the system by fully utilizing the different waste heat, fully utilizing the renewable energy sources and waste heat resources such as wind, light and the like, simultaneously outputting heat energy and electric energy, providing heat energy of different grades, and meeting the diversified demands of users, clean and environment-friendly, no carbon dioxide is discharged, and the method is beneficial to realizing the double-carbon target in China.
Description
Technical Field
The utility model belongs to the technical field of the energy storage, specifically be a waste heat cascade utilization system based on compressed air energy storage.
Background
In recent years, the global warming problem has gradually attracted the attention of the international society, china is the world with the largest energy consumption and greenhouse gas emission, and in order to cope with climate change, china proposes that "carbon peak reaching" is realized in 2030, strives for "carbon neutralization" before 2060, and vigorously develops renewable energy, which is an important way for realizing the goal of "double carbon", however, renewable energy is affected by day and night conversion, weather change and the like, has obvious characteristics of discontinuity, large volatility and the like, cannot obtain stable energy output, compressed air energy storage is widely concerned due to high reliability, low maintenance cost and wide working condition regulation capacity, advanced adiabatic compressed air energy storage preheats turbine inlet air through compressed heat generated in an energy storage stage, fossil fuel is not required to be combusted, zero carbon emission can be realized, but only the recovered compressed heat is used for preheating air, the temperature is difficult to reach the same level as that of a traditional CAES system, so that the generated electric energy is limited, and the requirement of a user can not be met.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a waste heat cascade utilization system based on compressed air energy storage possesses comprehensive energy utilization rate height, and the system is safe, stable, the high-efficient advantage of moving, has solved the inconvenient recycle of unnecessary heat among the current system, the extravagant problem of energy.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: a waste heat cascade utilization system based on compressed air energy storage comprises a compressed air energy storage module, a solar heat collection module and a cascade heat storage utilization module;
the compressed air energy storage module comprises a motor, a primary compressor, a first intercooler, a secondary compressor, a second intercooler, a tertiary compressor, a third intercooler, an air storage tank, a first regenerator, a second regenerator, a primary turbine, a third regenerator, a fourth regenerator, a secondary turbine and a generator, and the motor, the primary compressor, the first intercooler, the secondary compressor, the second intercooler, the tertiary compressor, the third intercooler, the air storage tank, the first regenerator, the second regenerator, the primary turbine, the third regenerator, the fourth regenerator, the secondary turbine and the generator are sequentially connected;
the solar heat collection module comprises a cold tank, a solar heat collector and an intermediate-temperature heat storage tank, the cold tank, the solar heat collector and the intermediate-temperature heat storage tank are sequentially communicated, and one end of the cold tank is communicated with the first intercooler, the second intercooler and the third intercooler;
the cascade heat storage utilization module comprises a high-temperature heat storage tank, a low-temperature heat storage tank, a hot user and a heat pump, one end of the high-temperature heat storage tank is communicated with the second heat regenerator and the fourth heat regenerator, the first heat regenerator is communicated with one end of the third heat regenerator, the low-temperature heat storage tank is communicated with the heat pump, and one end of the high-temperature heat storage tank is connected with the hot user.
Preferably, both ends of the air storage tank are fixedly provided with a throttle valve.
By adopting the scheme, the stability of the air flowing through the air storage tank is improved by the throttle valve.
Preferably, the cold tank, the medium-temperature heat storage tank, the high-temperature heat storage tank and the compressed air energy storage module are connected, and the low-temperature heat storage tank and the hot user connection end are both fixedly provided with a first control valve and a circulating pump.
By adopting the scheme, the opening and closing control is convenient, the power output is convenient, and the circulation is carried out.
Preferably, a second control valve and a heat collection circulating pump are respectively and fixedly mounted in the middle position where the cold tank is connected with the solar heat collector.
By adopting the scheme, the heat storage medium of the cold tank can enter the solar heat collector to absorb heat and raise the temperature conveniently.
Preferably, one end of the medium-temperature heat storage tank is communicated with the first regenerator and the third regenerator, and the first intercooler, the second intercooler and the third intercooler are respectively communicated with the high-temperature heat storage tank.
By adopting the scheme, the heat exchange of the heat storage medium in the medium-temperature heat storage tank is facilitated, and the heat storage medium is conveniently injected into the high-temperature heat storage tank for storage.
Preferably, one end of the medium-temperature heat storage tank, one end of the high-temperature heat storage tank, one end of the second heat regenerator and one end of the fourth heat regenerator are communicated with the heat consumer, and the heat consumer and one end of the heat pump are communicated with the cold tank.
By adopting the scheme, heat energy with different grades can be provided for the heat user conveniently.
Preferably, the motor is in driving connection with the first-stage compressor, the second-stage compressor and the third-stage compressor.
By adopting the scheme, the primary compressor, the secondary compressor and the tertiary compressor are convenient to drive, so that the compressed air energy storage module works.
Preferably, the electric motor is in driving connection with the primary turbine and the secondary turbine.
By adopting the scheme, the motor is convenient to drive, and the mechanical energy output by the primary turbine and the secondary turbine is converted into heat energy.
(III) advantageous effects
Compared with the prior art, the utility model provides a waste heat cascade utilization system based on compressed air energy storage possesses following beneficial effect:
the utility model discloses an integrated solar energy collection module, be used for heating turbine entry air, the problem that air temperature is restricted among the adiabatic compressed air energy storage system has been solved, guarantee the high-efficient operation of system, utilize the module through the step heat-retaining, according to the height of waste heat quality, store different grades of waste heat respectively in different heat storage tanks, the irreversible energy loss that causes when having reduced high-low fluid and mixing, and through carrying out make full use of with different waste heat, the system's comprehensive efficiency has effectively been improved, make full use of wind, renewable energy such as light and waste heat resource, but simultaneous output heat energy and electric energy, and provide different grades of heat energy, satisfy user's diversified demand, clean environmental protection, no carbon dioxide discharges, help the realization of china's "two carbon" target.
Drawings
FIG. 1 is an overall system diagram of the present invention;
FIG. 2 is a system diagram of the present invention;
fig. 3 is a system diagram of the solar heat collection module of the present invention;
FIG. 4 is a system diagram of a compressed air energy storage module according to the present invention;
in the figure:
1. a compressed air energy storage module; 11. an electric motor; 12. a first stage compressor; 13. a first intercooler; 14. a secondary compressor; 15. a second intercooler; 16. a three-stage compressor; 17. a third intercooler; 18. a gas storage tank; 19. a first heat regenerator; 110. a second regenerator; 111. a first-stage turbine; 112. a third regenerator; 113. a fourth regenerator; 114. a secondary turbine; 115. a generator; 116. a throttle valve;
2. a solar heat collection module; 21. cooling the tank; 22. a solar heat collector; 23. a medium temperature heat storage tank; 24. a second control valve; 25. a heat collection circulating pump;
3. a cascade heat storage utilization module; 31. a high temperature heat storage tank; 32. a low temperature heat storage tank; 33. a heat pump; 34. a hot user;
4. a first control valve;
5. a circulation pump;
a. high grade heat energy; b. medium grade heat energy; c. low grade heat energy; d. air.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example one
A waste heat cascade utilization system based on compressed air energy storage comprises a compressed air energy storage module 1, a solar heat collection module 2 and a cascade heat storage utilization module 3;
the compressed air energy storage module 1 comprises a motor 11, a primary compressor 12, a first intercooler 13, a secondary compressor 14, a second intercooler 15, a tertiary compressor 16, a third intercooler 17, an air storage tank 18, a first regenerator 19, a second regenerator 110, a primary turbine 111, a third regenerator 112, a fourth regenerator 113, a secondary turbine 114 and a generator 115, wherein the motor 11, the primary compressor 12, the first intercooler 13, the secondary compressor 14, the second intercooler 15, the tertiary compressor 16, the third intercooler 17, the air storage tank 18, the first regenerator 19, the second regenerator 110, the primary turbine 111, the third regenerator 112, the fourth regenerator 113, the secondary turbine 114 and the generator 115 are connected in sequence;
the solar heat collection module 2 comprises a cold tank 21, a solar heat collector 22 and a medium-temperature heat storage tank 23, the cold tank 21, the solar heat collector 22 and the medium-temperature heat storage tank 23 are sequentially communicated, and one end of the cold tank 21 is communicated with the first intercooler 13, the second intercooler 15 and the third intercooler 17.
Both ends of the air tank 18 are fixedly provided with throttle valves 116.
A second control valve 24 and a heat collection circulating pump 25 are respectively and fixedly installed at the middle position of the connection between the cold tank 21 and the solar heat collector 22.
The motor 11 is in driving communication with the primary compressor 12, the secondary compressor 14, and the tertiary compressor 16.
Referring to fig. 1 to 4, in use, surplus electric power supplies power to the motor 11, the motor 11 is drivingly connected to the primary compressor 12, the secondary compressor 14 and the tertiary compressor 16, such that the primary compressor 12, the secondary compressor 14 and the tertiary compressor 16 operate, an exhaust end of the primary compressor 12 is connected to an intake end of the secondary compressor 14 through the first intercooler 13, an exhaust end of the secondary compressor 14 is connected to an intake end of the tertiary compressor 16 through the second intercooler 15, an exhaust end of the tertiary compressor 16 is communicated with the air storage tank 18 through the third intercooler 17 and the throttle valve 116, the air is compressed and stored in the air storage tank 18, the air storage tank 18 is connected to an intake end of the primary turbine 111 through the throttle valve 116, the first regenerator 19 and the second regenerator 110, an exhaust end of the primary turbine 111 is connected to the secondary turbine 114 through the third regenerator 112 and the fourth regenerator 113, the output ends of the primary turbine 111 and the secondary turbine 114 are connected with the driving of the generator 115, and the generator 115 outputs electric energy under the driving of the primary turbine 111 and the secondary turbine 114 to supply power to users.
The output end of the solar heat collector 22 is connected with the medium-temperature heat storage tank 23, the cold tank 21 contains heat storage media, and after heat absorption and temperature rise are carried out in the solar heat collector 22, medium-grade heat energy is stored in the medium-temperature heat storage tank 23 and can be used for preheating air at the inlet of a turbine, so that the problem that the air temperature in an adiabatic compressed air energy storage system is limited is solved.
Example two
The mode of thermal energy cascade utilization is increased on the basis of the first embodiment.
The cascade heat storage utilization module 3 comprises a high-temperature heat storage tank 31, a low-temperature heat storage tank 32, a heat consumer 34 and a heat pump 33, one end of the high-temperature heat storage tank 31 is communicated with the second heat regenerator 110 and the fourth heat regenerator 113, one ends of the first heat regenerator 19 and the third heat regenerator 112 are communicated with the low-temperature heat storage tank 32, one end of the low-temperature heat storage tank 32 is communicated with the heat pump 33, and one ends of the high-temperature heat storage tank 31 and the heat pump 33 are both connected with the heat consumer 34.
The connection ends of the cold tank 21, the medium temperature heat storage tank 23 and the high temperature heat storage tank 31 with the compressed air energy storage module 1 and the connection ends of the low temperature heat storage tank 32 with the hot user 34 are all fixedly provided with a first control valve 4 and a circulating pump 5.
One end of the medium temperature heat storage tank 23 is communicated with the first regenerator 19 and the third regenerator 112, and the first intercooler 13, the second intercooler 15 and the third intercooler 17 are respectively communicated with the high temperature heat storage tank 31.
One end of the medium temperature heat storage tank 23, the high temperature heat storage tank 31, the second thermal regenerator 110 and the fourth thermal regenerator 113 is communicated with the hot user 34, and one end of the hot user 34 and one end of the heat pump 33 are communicated with the cold tank 21.
Referring to fig. 1 to 4, when surplus electric energy exists, the surplus electric energy supplies power to the motor 11 to drive the first-stage compressor 12, the second-stage compressor 14 and the third-stage compressor 16 to operate, air is compressed and cooled and then stored in the air storage tank 18, meanwhile, a heat storage medium stored in the cold tank 21 enters the first intercooler 13, the second intercooler 15 and the third intercooler 17 respectively to exchange heat with the air, and waste heat generated in the compression process is collected as high-grade heat energy and stored in the high-temperature heat storage tank 31.
When the electric energy is not enough to meet the user demand, the air storage tank 18 releases high-pressure air, the air enters the first heat regenerator 19 after being regulated to stable pressure by the throttle valve 116, is preheated by the heat storage medium from the intermediate-temperature heat storage tank 23, then enters the second heat regenerator 110, is further heated by the heat storage medium from the high-temperature heat storage tank 31 and then expands in the first-stage turbine 111 to do work and generate power, the air pressure after doing work is still higher, the air enters the second-stage turbine 114 to do work and generate power after being sequentially heated by the heat storage medium of the intermediate-temperature heat storage tank 23 and the heat storage medium of the high-temperature heat storage tank 31, and finally the air is exhausted to the atmosphere.
One part of the heat storage medium in the cold tank 21 is used for recovering compression waste heat, one part of the heat storage medium is used for absorbing heat in the solar heat collector 22, the heat storage medium absorbs solar radiation and then enters the medium-temperature heat storage tank 23 for storage, one part of the heat storage medium in the medium-temperature heat storage tank 23 is used for preheating high-pressure air, the heat storage medium with the reduced temperature enters the low-temperature heat storage tank 32 for storage, one part of the heat storage medium is used for providing medium-grade heat energy for a user and then returns to the cold tank 21 after heat exchange, one part of the heat storage medium in the high-temperature heat storage tank 31 is used for further heating turbine inlet air, the medium-grade heat energy is provided for the user after the temperature is reduced, the other part of the heat storage medium is used for providing high-grade heat energy for the user, the heat storage medium in the low-temperature heat storage tank 32 is used as a low-temperature heat source on one side of the heat pump 33 and returns to the cold tank 21 after the heat exchange, and heat supply backwater on the other side of the heat pump 33 is improved to the medium-grade heat supply for the user.
The utility model provides a surplus electric energy derives from low ebb electricity, surplus wind-powered electricity generation or surplus photoelectricity, and the heat storage medium is the conduction oil, and heat pump 33 is the water source heat pump, and high-grade heat energy derives from the compression waste heat that the compression process produced, and well grade heat energy derives from the heat storage medium of solar photothermal, heat pump heat production and second regenerator 110, the 113 exports of fourth regenerator, and low grade heat energy derives from the heat storage medium of first regenerator 19, the export of third regenerator 112.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a waste heat cascade utilization system based on compressed air energy storage which characterized in that: the solar energy-storage heat pump water heater comprises a compressed air energy storage module (1), a solar heat collection module (2) and a stepped heat storage utilization module (3);
the compressed air energy storage module (1) comprises a motor (11), a primary compressor (12), a first intercooler (13), a secondary compressor (14), a second intercooler (15), a tertiary compressor (16), a third intercooler (17), an air storage tank (18), a first regenerator (19), a second regenerator (110), a primary turbine (111), a third regenerator (112), a fourth regenerator (113), a secondary turbine (114) and a generator (115), and the motor (11), the primary compressor (12), the first intercooler (13), the secondary compressor (14), the second intercooler (15), the tertiary compressor (16), the third intercooler (17), the air storage tank (18), the first regenerator (19), the second regenerator (110), the primary turbine (111), The third heat regenerator (112), the fourth heat regenerator (113), the secondary turbine (114) and the generator (115) are connected in sequence;
the solar heat collection module (2) comprises a cold tank (21), a solar heat collector (22) and a medium-temperature heat storage tank (23), the cold tank (21), the solar heat collector (22) and the medium-temperature heat storage tank (23) are sequentially communicated, and one end of the cold tank (21) is communicated with the first intercooler (13), the second intercooler (15) and the third intercooler (17);
the step heat storage utilizes module (3) to include high temperature heat storage jar (31), low temperature heat storage jar (32), heat pump (33), hot user (34), just the one end of high temperature heat storage jar (31) with second heat regenerator (110) fourth heat regenerator (113) are linked together, first heat regenerator (19) with the one end of third heat regenerator (112) with low temperature heat storage jar (32) are linked together, the one end of low temperature heat storage jar (32) with heat pump (33) are linked together, just high temperature heat storage jar (31), the one end of heat pump (33) all with hot user (34) are connected.
2. The waste heat cascade utilization system based on compressed air energy storage according to claim 1, characterized in that: and throttle valves (116) are fixedly mounted at two ends of the air storage tank (18).
3. The waste heat cascade utilization system based on compressed air energy storage according to claim 1, characterized in that: the cold tank (21), medium temperature heat storage tank (23), high temperature heat storage tank (31) with compressed air energy storage module (1) link end and low temperature heat storage tank (32) with the equal fixed mounting of heat pump (33) link has first control valve (4) and circulating pump (5).
4. The waste heat cascade utilization system based on compressed air energy storage according to claim 1, characterized in that: and a second control valve (24) and a heat collection circulating pump (25) are respectively and fixedly installed in the middle position where the cold tank (21) is connected with the solar heat collector (22).
5. The waste heat cascade utilization system based on compressed air energy storage according to claim 1, characterized in that: one end of the medium-temperature heat storage tank (23) is communicated with the first heat regenerator (19) and the third heat regenerator (112), and the first intercooler (13), the second intercooler (15) and the third intercooler (17) are respectively communicated with the high-temperature heat storage tank (31).
6. The waste heat cascade utilization system based on compressed air energy storage according to claim 1, characterized in that: the medium temperature heat storage tank (23), the high temperature heat storage tank (31), the second regenerator (110) and the fourth regenerator (113) one end with heat pump (33) are linked together, just heat pump (33) with the one end of hot user (34) all with cold jar (21) are linked together.
7. The waste heat cascade utilization system based on compressed air energy storage according to claim 1, characterized in that: the motor (11) is in driving connection with the first-stage compressor (12), the second-stage compressor (14) and the third-stage compressor (16).
8. The waste heat cascade utilization system based on compressed air energy storage according to claim 1, characterized in that: the electric motor (11) is in driving connection with the primary turbine (111) and the secondary turbine (114).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117489569A (en) * | 2023-07-31 | 2024-02-02 | 九州绿能科技股份有限公司 | Compressed air energy storage system, control method and multi-stage heat storage tank |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117489569A (en) * | 2023-07-31 | 2024-02-02 | 九州绿能科技股份有限公司 | Compressed air energy storage system, control method and multi-stage heat storage tank |
| CN117489569B (en) * | 2023-07-31 | 2024-05-07 | 九州绿能科技股份有限公司 | Compressed air energy storage system, control method and multi-stage heat storage tank |
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