CN117703720A - Multistage regulation compressed air energy storage system that draws water - Google Patents
Multistage regulation compressed air energy storage system that draws water Download PDFInfo
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- CN117703720A CN117703720A CN202410061248.2A CN202410061248A CN117703720A CN 117703720 A CN117703720 A CN 117703720A CN 202410061248 A CN202410061248 A CN 202410061248A CN 117703720 A CN117703720 A CN 117703720A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 155
- 238000004146 energy storage Methods 0.000 title claims abstract description 67
- 238000005086 pumping Methods 0.000 claims abstract description 25
- 230000001105 regulatory effect Effects 0.000 claims description 35
- 230000005611 electricity Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 12
- 108010066114 cabin-2 Proteins 0.000 description 9
- 108010066057 cabin-1 Proteins 0.000 description 7
- 238000010248 power generation Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012546 transfer 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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Abstract
The invention relates to a multistage-adjusting water pumping compressed air energy storage system, which comprises a water pumping energy storage unit and a compressed air energy storage unit, wherein the water pumping energy storage unit comprises a first water-gas co-volume cabin (1), a second water-gas co-volume cabin (2), a third water-gas co-volume cabin (3), a second water pump water turbine set (13), a fourth water pump water turbine set (15) and a reservoir (18), the first water-gas co-volume cabin (1), the second water-gas co-volume cabin (2) and the third water-gas co-volume cabin (3) are sequentially communicated through air pipelines, and the first water-gas co-volume cabin (1), the second water-gas co-volume cabin (2) and the third water-gas co-volume cabin (3) are also communicated with the reservoir (18) through waterway pipelines, and the second water pump water turbine set (13) and the fourth water pump water turbine set (15) are used for pumping water during energy storage.
Description
Technical Field
The invention relates to the technical field of energy storage, in particular to a multistage-adjusting water pumping compressed air energy storage system.
Background
Due to the continuous consumption of fossil energy, new energy development and utilization are continuously sought. Wind power and photovoltaic power generation are widely applied new energy utilization technologies at present, but have randomness and volatility, and can bring huge impact to a power grid, so that the safe operation of the power grid is seriously affected.
The large-scale energy storage is an important way for establishing a novel power system and ensuring the safe operation of a power grid, and the pumped storage power generation and the compressed air energy storage are two common energy storage modes at present, but the effects of the two modes are not ideal.
It should be noted that the information disclosed in the background section of the present invention is only for increasing the understanding of the general background of the present invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art. The statements are to be understood as merely provide background information related to the present application and may not necessarily constitute prior art.
Disclosure of Invention
The embodiment of the invention provides a multistage regulating water pumping compressed air energy storage system.
According to one aspect of the invention, the multistage regulation pumping compressed air energy storage system comprises a pumping energy storage unit and a compressed air energy storage unit, wherein the pumping energy storage unit comprises a first water-gas co-volume cabin, a second water-gas co-volume cabin, a third water-gas co-volume cabin, a second water pump water turbine unit, a fourth water pump water turbine unit and a reservoir, the first water-gas co-volume cabin, the second water-gas co-volume cabin and the third water-gas co-volume cabin are sequentially communicated through an air pipeline, a first regulating valve is arranged on an air pipeline between the first water-gas co-volume cabin and the second water-gas co-volume cabin, a third regulating valve is arranged on an air pipeline between the second water-gas co-volume cabin and the third water-gas co-volume cabin, and air pressure intercommunication among the first water-gas co-volume cabin, the second water-gas co-volume cabin, the third water-gas co-volume cabin and the reservoir is realized through the first regulating valve and the third regulating valve;
the first water-gas co-container, the second water-gas co-container and the third water-gas co-container are also communicated with the reservoir through a waterway pipeline, a first stop valve is arranged on the waterway pipeline between the first water-gas co-container and the reservoir, a second stop valve is arranged on the waterway pipeline between the second water-gas co-container and the reservoir, a third stop valve is arranged on the waterway pipeline between the third water-gas co-container and the reservoir, and waterway intercommunication among the first water-gas co-container, the second water-gas co-container, the third water-gas co-container and the reservoir is realized through the first stop valve, the second stop valve and the third stop valve;
the second water pump turbine set and the fourth water pump turbine set are used for pumping water by a water pump during energy storage, and valves of the first stop valve, the second stop valve and the third stop valve are opened during energy storage, and the fourth water pump turbine set works for pumping water; when the energy is released, the valves of the first stop valve, the second stop valve and the third stop valve are opened, and the second water pump turbine unit and the fourth water pump turbine unit work to generate electricity.
In some embodiments, an eleventh stop valve is disposed above the first water-gas co-compartment, a twelfth stop valve is disposed above the second water-gas co-compartment, and a thirteenth stop valve is disposed above the third water-gas co-compartment.
In some embodiments, the compressed air energy storage unit comprises an energy storage subunit, the energy storage subunit comprises a first compressor, a second compressor, a third compressor, a first heat exchanger, a second heat exchanger, a third heat exchanger, a first water pump water turbine unit, a second water vapor co-tank, a hot water tank and an air storage tank, when the compressed air energy storage unit stores energy, the first compressor, the second compressor and the third compressor compress air, the first water pump water turbine unit pumps water to the second water vapor co-tank, the water is sent into the first heat exchanger, the second heat exchanger and the third heat exchanger, the water after heat exchange is stored in the hot water tank, and the gas after compressed heat exchange is stored in the air storage tank.
In some embodiments, the compressed air energy storage unit comprises an energy release subunit, the energy release subunit comprises a fourth heat exchanger, an expander generator set, a third water pump water turbine set, a hot water tank and an air storage tank, and when energy is released, compressed air in the air storage tank exchanges heat with water pumped from the hot water tank through the third water pump water turbine set in the fourth heat exchanger to drive the expander generator set to generate electricity.
Other features of the present disclosure and its advantages will become apparent from the following detailed description of exemplary embodiments of the disclosure, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
fig. 1 is a schematic structural diagram of an embodiment of a multi-stage regulated pumped-compressed-air energy storage system provided by the present invention.
In the figure:
1. a first water-gas co-compartment; 2. a second water-gas co-tank; 3. a third water-gas co-compartment; 4. a first compressor; 5. a first heat exchanger; 6. a second compressor; 7. a second heat exchanger; 8. a third compressor; 9. a third heat exchanger; 10. a fourth heat exchanger; 11. an expander generator set; 12. a first water pump turbine unit; 13. the second water pump turbine unit; 14. a third pump turbine set; 15. a fourth pump turbine unit; 16. a hot water tank; 17. a gas storage tank; 18. a reservoir; 19. an electric control device; 20. a first regulating valve; 21. a second regulating valve; 22. a third regulating valve; 23. a fourth regulating valve; 24. a first stop valve; 25. a second shut-off valve; 26. a third stop valve; 27. a fourth shut-off valve; 28. a fifth shut-off valve; 29. a sixth shut-off valve; 30. a fifth regulating valve; 31. a seventh stop valve; 32. an eighth shutoff valve; 33. a ninth shut-off valve; 34. a tenth shut-off valve; 35. an eleventh stop valve; 36. a twelfth stop valve; 37. a thirteenth shut-off valve; 38. a sixth regulating valve; 39. and a seventh regulating valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it is to be understood that the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate an orientation or
The positional relationship is based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the scope of protection of the present invention.
As shown in fig. 1, in one embodiment of the multi-stage regulated pumped-compressed air energy storage system provided by the present invention, the multi-stage regulated pumped-compressed air energy storage system is designed to be a combination of multi-stage pumped-storage and multi-stage compressed air storage.
The pumped storage unit comprises a first water-gas co-container 1, a second water-gas co-container 2, a third water-gas co-container 3, a second water pump water turbine unit 13, a fourth water pump water turbine unit 15 and a reservoir 18. The first water-gas co-container cabin 1, the second water-gas co-container cabin 2 and the third water-gas co-container cabin 3 are sequentially communicated through an air pipeline. A first regulating valve 20 is arranged on an air pipeline between the first water-gas co-container 1 and the second water-gas co-container 2, and a third regulating valve 22 is arranged on an air pipeline between the second water-gas co-container 2 and the third water-gas co-container 3. Through the first regulating valve 20 and the third regulating valve 22, the air pressure intercommunication and regulation among the first water-air co-container 1, the second water-air co-container 2, the third water-air co-container 3 and the reservoir 18 can be realized.
The first water-gas co-container cabin 1, the second water-gas co-container cabin 2 and the third water-gas co-container cabin 3 are also communicated with the reservoir 18 through waterway pipelines. A first stop valve 24 is arranged on the waterway pipeline between the first water-gas compatible cabin 1 and the reservoir 18. A second stop valve 25 is arranged on the waterway pipeline between the second water-gas co-container cabin 2 and the reservoir 18. A third stop valve 26 is arranged on the waterway pipeline between the third water-gas co-container cabin 3 and the reservoir 18. The first stop valve 24, the second stop valve 25 and the third stop valve 26 can realize the waterway intercommunication among the first water-gas co-tank 1, the second water-gas co-tank 2, the third water-gas co-tank 3 and the reservoir 18.
An eleventh stop valve 35 is arranged above the first water-gas co-container 1, a twelfth stop valve 36 is arranged above the second water-gas co-container 2, and a thirteenth stop valve 37 is arranged above the third water-gas co-container 3. Through eleventh stop valve 35, twelfth stop valve 36 and thirteenth stop valve 37, can realize that first aqueous vapor is held cabin 1, second aqueous vapor is held cabin 2 and third aqueous vapor is held cabin 3 respectively with the break-make of external atmosphere altogether, can realize the regulation of cabin internal pressure when corresponding stop valve closes.
The first water pump turbine set 12, the second water pump turbine set 13, the third water pump turbine set 14 and the fourth water pump turbine set 15 can pump water when energy storage can be achieved. During energy storage, the valves of the first stop valve 24, the second stop valve 25 and the third stop valve 26 in the pumped storage unit are opened, and the fourth water pump-turbine unit 15 works to pump water. When the energy is released, the valves of the first stop valve 24, the second stop valve 25, the third stop valve 26 and the seventh stop valve 31 in the pumped storage unit are opened, and the second water pump turbine unit 13 and the fourth water pump turbine unit 15 work to generate electricity. In the water pumping and energy releasing process, when the valves of the eleventh stop valve 35, the twelfth stop valve 36 and the thirteenth stop valve 37 are all opened, the first water-gas co-tank 1, the second water-gas co-tank 2 and the third water-gas co-tank 3 are changed into reservoirs, and the valves of the first stop valve 24, the second stop valve 25 and the third stop valve 26 are controlled to be opened and closed in different combinations, so that the conventional water pumping and energy releasing can be performed, the operation is simple, and the water pumping and energy releasing device is suitable for different power grade requirements.
The compressed air energy storage unit comprises an energy storage subunit and an energy release subunit.
The energy storage subunit comprises a first compressor 4, a second compressor 6, a third compressor 8, a first heat exchanger 5, a second heat exchanger 7, a third heat exchanger 9, a first water pump turbine unit 12, a second water-gas co-tank 2 and an air storage tank 17.
During energy storage, the first compressor 4, the second compressor 6 and the third compressor 8 compress air, the first water pump-turbine unit 12 pumps water to the second water-gas co-tank 2, the water enters the first heat exchanger 5, the second heat exchanger 7 and the third heat exchanger 9 through the fourth stop valve 27, the fifth stop valve 28 and the sixth stop valve 29, and the water quantity entering the heat exchangers can be adjusted through the opening degree of the valves. The water after heat exchange is stored in the hot water tank 16, and the gas after heat exchange by the final stage of compression is stored in the gas storage tank 17.
The energy release subunit comprises a fourth heat exchanger 10, an expander generator set 11, a third water pump-turbine set 14, a gas storage tank 17 and a hot water tank 16. When the energy is released, the second stop valve 25 and the ninth stop valve 33 are opened, and after the compressed air in the air storage tank 17 exchanges heat with the water in the hot water tank 16 conveyed to the fourth heat exchanger 10 through the third water pump water turbine unit 14, the expansion machine generator unit 11 is driven to generate electricity. The tenth shut-off valve 34 may be opened to allow water for heat exchange during this process to be transferred to the fourth heat exchanger 10 by increasing the head of the hot water tank 16 by the first pump-turbine set 12.
And the pumped storage and the compressed air storage are coupled to realize the function.
In the air energy storage process, a closed cabin mode can be adopted, the second regulating valve 21 is opened, and the second water vapor co-tank 2 is pressurized. When the first regulating valve 20 and the third regulating valve 22 are opened, the first water-gas co-container 1, the second water-gas co-container 2 and the third water-gas co-container 3 can be pressurized simultaneously, so that the compressed air storage power and capacity are increased, and the pressure can be provided for the pumped storage unit.
On the basis of the above, when there is a high pressure in the cabin, the fifth regulating valve 30 may be opened to directly transfer cold water to the hot water tank through the heat exchanger, and simultaneously the amount of water passing through the first heat exchanger 5 may be regulated by the variation of the opening degree of the fifth regulating valve 30. The same applies to the second heat exchanger 7 and the third heat exchanger 9. Therefore, investment of the water pump can be saved.
In the air energy storage process, when larger energy storage power is needed, the pumped storage can be opened, and the pressure of the closed second water-gas co-container cabin 2 is increased. On the basis, the second regulating valve 21 is opened to supplement air before the secondary compressor, so that the power consumption of the compressor can be increased.
In the water pumping and energy storage process, graded energy storage is adopted, a proper closed cabin is selected as an upper water tank, and meanwhile, the pressure in the cabin is also the adjustment of the water pressure by adjusting an eleventh stop valve 35, a twelfth stop valve 36 and a thirteenth stop valve 37, so that the first water pump and water turbine set 12 works in a high-efficiency area, and the water pumping and energy storage work in the highest efficiency is realized.
In the water pumping and energy releasing process, the pressure of the closed cabin generated by the early stage pressurizing can be utilized, and a proper water turbine is selected for power generation, so that different output powers can be regulated.
When one unit is damaged, the multi-stage energy storage system can normally operate through other units, and backup among the multiple units is realized.
The process can adjust the switch of different valves according to different requirements, and multistage adjustment is realized. Meanwhile, the multi-stage adjustment increases the flexibility and stability of the system, and when one device of the system fails, the system can work through other paths.
In the present invention:
the first compressor 4, the second compressor 6 and the third compressor 8 are used for driving compressed air by electric energy to realize energy storage.
The first heat exchanger 5, the second heat exchanger 7, the third heat exchanger 9 and the fourth heat exchanger 10 are used for realizing heat conversion of water and gas.
The first water-gas co-container cabin 1, the second water-gas co-container cabin 2 and the third water-gas co-container cabin 3 are used for storing compressed air and water, and valves are arranged above the first water-gas co-container cabin and can be communicated with and disconnected from outside air. Wherein, there is the difference in height between first aqueous vapor syntonic cabin 1, second aqueous vapor syntonic cabin 2 and the third aqueous vapor syntonic cabin 3.
The first water pump turbine unit 12 is mainly used for driving cold water to exchange heat with compressed air through the first heat exchanger 5, the second heat exchanger 7 and the third heat exchanger 9 as a water pump in the energy storage process, so that the air inlet temperature of the compressor is reduced. When the pressure of the second water-gas co-container cabin 2 is high, the second water-gas co-container cabin can be used as a water turbine to generate electricity.
The third water pump-turbine set 14 is mainly used as a water pump to drive hot water to exchange heat with compressed air through the fourth heat exchanger 10 in the energy release process, so as to increase the air inlet temperature of the expander. When the pressure of the hot water tank 16 is large, the power generation can be performed as a water turbine.
The second water pump turbine unit 13 and the fourth water pump turbine unit 15 pump water as water pumps in the energy storage process, and generate electricity as water turbines in the energy release process.
The expander generator set 11 is used for performing expansion work to drive a generator to generate power in the energy release process.
The hot water tank 16 is used for storing water after heat exchange.
The air storage tank 17 is used for storing the compressed air after heat exchange.
The reservoir 18 is used for supplying water to the first water-gas compatible cabin 1, the second water-gas compatible cabin 2 and the third water-gas compatible cabin 3, and is used as a low-level reservoir.
The electric control device 19 is used for supplying power and consuming electricity, and simultaneously performs power control.
The first, second, third, fourth, fifth, sixth and seventh regulating valves 20, 21, 22, 23, 30, 38 and 39 are used to regulate the flow and pressure of the waterway and the gas circuit.
The first cut-off valve 24, the second cut-off valve 25, the third cut-off valve 26, the fourth cut-off valve 27, the fifth cut-off valve 28, the sixth cut-off valve 29, the seventh cut-off valve 31, the eighth cut-off valve 32, the ninth cut-off valve 33, the tenth cut-off valve 34, the eleventh cut-off valve 35, the twelfth cut-off valve 36, and the thirteenth cut-off valve 37 are switches for controlling the piping.
The invention provides an energy storage system capable of performing multistage adjustment and coupling of pumped storage and compressed air energy storage. On the basis of retaining the original functions of pumped storage and compressed air energy storage, the complementation between the pumped storage and the compressed air energy storage is increased, and on the other hand, gradient energy utilization is realized by adopting multistage regulation, so that the wider regulation range is realized, and the requirements under different application conditions are met. The design comprises a multi-stage air compressor, a multi-stage heat exchanger, a multi-stage water-gas co-container cabin, an air expander, a water pump-water turbine unit, electric control equipment, a gas storage tank, a water storage tank and the like.
The multistage pumping compressed air energy storage system provided by the invention can regulate the power generation power of the system by regulating the switch of different valves according to different power requirements, and can realize flexible control of the system. Meanwhile, the compressed air energy storage system can control the pressure in the water-gas co-containing cabin in the pumped storage system, and different electricity requirements are met.
By way of illustration of various embodiments of the multi-level regulated pumped compressed air energy storage system of the present invention, it can be seen that the multi-level regulated pumped compressed air energy storage system embodiments of the present invention have at least one or more of the following advantages:
1. compared with the traditional single energy storage system, the system adopting the combination of pumped storage and compressed air energy storage increases the capacity of a group of systems and widens the adjustment range of the energy storage capacity;
2. the pumped storage unit and the compressed air energy storage unit can be subjected to multistage adjustment, and the switch of different valves can be controlled, so that different pipelines of the system work, the multistage adjustment of the system is performed, different electricity requirements are met, and the flexibility of the system is improved;
3. the water-gas co-holding cabin in the pumped storage unit can realize the conversion between the water-gas co-holding cabin and the water reservoir through the switch of the valve. When the water-gas co-capacity cabin is used, the pressure in the cabin can be changed through the compressor to replace a water pump to provide power, and the output of different powers of the system can be realized. When the water storage tank is used as a water storage tank, the output of different powers is realized by adjusting the switch of different valves;
4. when one device fails, other paths can ensure the normal operation of the system, and backup among multiple units is realized.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same; while the invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications and equivalents of the features disclosed herein may be made to the specific embodiments of the invention or to parts of the features may be substituted without departing from the principles of the invention, and such modifications and equivalents are intended to be encompassed within the scope of the invention as claimed.
Claims (4)
1. The multistage regulation water pumping compressed air energy storage system is characterized by comprising a water pumping energy storage unit and a compressed air energy storage unit, wherein the water pumping energy storage unit comprises a first water-gas co-volume cabin (1), a second water-gas co-volume cabin (2), a third water-gas co-volume cabin (3), a second water pump water turbine unit (13), a fourth water pump water turbine unit (15) and a reservoir (18), the first water-gas co-volume cabin (1), the second water-gas co-volume cabin (2) and the third water-gas co-volume cabin (3) are sequentially communicated through an air pipeline, a first regulating valve (20) is arranged on an air pipeline between the first water-gas co-volume cabin (1) and the second water-gas co-volume cabin (2), a third regulating valve (22) is arranged on an air pipeline between the second water-gas co-volume cabin (2) and the third water-gas co-volume cabin (3), and the air pressure of the reservoir (18) is communicated through the first regulating valve (20) and the third regulating valve (22);
the first water-gas co-volume cabin (1), the second water-gas co-volume cabin (2) and the third water-gas co-volume cabin (3) are also communicated with the reservoir (18) through a waterway pipeline, a first stop valve (24) is arranged on the waterway pipeline between the first water-gas co-volume cabin (1) and the reservoir (18), a second stop valve (25) is arranged on the waterway pipeline between the second water-gas co-volume cabin (2) and the reservoir (18), a third stop valve (26) is arranged on the waterway pipeline between the third water-gas co-volume cabin (3) and the reservoir (18), and waterway intercommunication between the first water-gas co-volume cabin (1), the second water-gas co-volume cabin (2), the third water-gas co-volume cabin (3) and the reservoir (18) is realized through the first stop valve (24), the second stop valve (25) and the third stop valve (26);
the second water pump turbine unit (13) and the fourth water pump turbine unit (15) are used for pumping water by a water pump during energy storage, and when the energy is stored, the valves of the first stop valve (24), the second stop valve (25) and the third stop valve (26) are opened, and the fourth water pump turbine unit (15) works for pumping water; when energy is released, the valves of the first stop valve (24), the second stop valve (25) and the third stop valve (26) are opened, and the second water pump water turbine unit (13) and the fourth water pump water turbine unit (15) work to generate electricity.
2. The multi-stage regulation pumping compressed air energy storage system according to claim 1, wherein an eleventh stop valve (35) is arranged above the first water-gas co-tank (1), a twelfth stop valve (36) is arranged above the second water-gas co-tank (2), and a thirteenth stop valve (37) is arranged above the third water-gas co-tank (3).
3. The multi-stage regulation pumped compressed air energy storage system according to claim 1, wherein the compressed air energy storage unit comprises an energy storage subunit, the energy storage subunit comprises a first compressor (4), a second compressor (6), a third compressor (8), a first heat exchanger (5), a second heat exchanger (7), a third heat exchanger (9), a first water pump water turbine set (12), the second water vapor co-tank (2), a hot water tank (16) and an air storage tank (17), when the energy is stored, the first compressor (4), the second compressor (6) and the third compressor (8) compress the air, the first water pump water turbine set (12) pumps the water of the second water vapor co-tank (2), the water after heat exchange is sent into the first heat exchanger (5), the second heat exchanger (7) and the third heat exchanger (9), the water after heat exchange is stored in the hot water tank (16), and the compressed air is stored in the air storage tank (17).
4. The multistage-regulation water pumping compressed air energy storage system according to claim 1, wherein the compressed air energy storage unit comprises an energy release subunit, the energy release subunit comprises a fourth heat exchanger (10), an expander generator set (11), a third water pump water turbine set (14), a hot water tank (16) and a gas storage tank (17), and when energy is released, compressed air in the gas storage tank (17) exchanges heat with water pumped from the hot water tank (16) through the third water pump water turbine set (14) in the fourth heat exchanger (10) to drive the expander generator set (11) to generate electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410061248.2A CN117703720A (en) | 2024-01-16 | 2024-01-16 | Multistage regulation compressed air energy storage system that draws water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410061248.2A CN117703720A (en) | 2024-01-16 | 2024-01-16 | Multistage regulation compressed air energy storage system that draws water |
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| Publication Number | Publication Date |
|---|---|
| CN117703720A true CN117703720A (en) | 2024-03-15 |
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|---|---|---|---|
| CN202410061248.2A Pending CN117703720A (en) | 2024-01-16 | 2024-01-16 | Multistage regulation compressed air energy storage system that draws water |
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| CN (1) | CN117703720A (en) |
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- 2024-01-16 CN CN202410061248.2A patent/CN117703720A/en active Pending
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