CN115681098A - Non-afterburning compressed air energy storage system with external heat source introduced - Google Patents
Non-afterburning compressed air energy storage system with external heat source introduced Download PDFInfo
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- 238000005338 heat storage Methods 0.000 claims abstract description 42
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 150000003839 salts Chemical class 0.000 claims description 18
- 230000017525 heat dissipation Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 abstract description 14
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- 238000011084 recovery Methods 0.000 abstract description 4
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
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- 230000005611 electricity Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
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- 239000003345 natural gas Substances 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
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- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 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 discloses a non-afterburning compressed air energy storage system introducing an external heat source, which comprises wind power generation equipment, a transformer, a motor and a generator. The system also comprises a compressed air unit, a high-temperature heat storage unit and a low-temperature heat storage unit; the wind power generation equipment, the transformer, the motor, the compressed air unit and the generator are electrically connected in sequence, and the output of the generator is connected to the grid; the compressed air unit is respectively connected with the high-temperature heat storage unit and the low-temperature heat storage unit through pipelines. The invention adopts the scheme of multi-stage compression and heat recovery, improves the air storage capacity and the circulation efficiency of the compressed air energy storage system, and simultaneously reduces the requirement of compressed air energy storage fuel and the emission of greenhouse gases.
Description
Technical Field
The invention relates to the technical field of compressed air energy storage, in particular to a non-afterburning type compressed air energy storage system introducing an external heat source.
Background
In recent years, the wind power capacity of the world has increased rapidly in recent years, and the recent trend of wind energy development foresees a new interest point in the field of energy storage, namely, the wind power capacity is no longer used as a method for converting base load power into peak power, but is mainly used for reducing wind power fluctuation. Fluctuations in wind power output require spare storage capacity to ensure output at peak demand.
The stored energy represents an alternative wind balancing strategy. Among other things, low fuel consumption of compressed air energy storage is particularly attractive during periods of high natural gas prices, either in living or in turbulence. The compressed air balance wind power is a potential large-scale energy storage application field which is already acknowledged, and the fuel consumption of the compressed air energy storage is less than half of that of a single-cycle fuel consumption of a gas engine, so that the value can be well maintained to cope with the fluctuation of the natural gas price.
Recently, with the soaring price of fossil fuels such as fuel oil and natural gas, the related industrial cost with fuel demand is further increased, the emission rate of greenhouse gases with compressed air energy storage is low, the demand on fuel is relatively low, and the device is particularly suitable for areas with abundant wind power and is very suitable for balancing the fluctuation of wind power output. Based on this, improve current adiabatic compressed air energy storage technology, further promote compressed air circulation efficiency and reduce carbon and discharge, have important meaning.
The existing compressed air energy storage technology is mainly divided into 2 types, namely, the first traditional compressed air energy storage technology; the second new type of compressed air energy storing technology is non-complementary combustion compressed air energy storing system. In the traditional compression energy storage, in the electricity utilization valley, air is compressed and stored in an air storage chamber, so that electric energy is converted into internal energy of the air to be stored; during the peak of electricity utilization, high-pressure air is released from the air storage chamber, enters the combustion chamber to be combusted together with fuel, and then drives the turbine to generate electricity. It is unanimous with traditional compressed air energy storage, novel compressed air energy storage technique also divide into the three process that charges, stores and discharge, and the difference is that this part heat in compression and the cooling process has been retrieved to novel compressed air energy storage, utilizes the energy heating who stores in the heat accumulator in the charging process to get into the mode improvement generating capacity of air in the expander to improve system's circulation efficiency. The purposes of reducing carbon dioxide emission and improving the system efficiency are achieved.
The disadvantages of the prior art are summarized as follows: traditional compressed air energy storage circulation inefficiency, need more fuel burning, release a certain amount of greenhouse gas, traditional compressed air energy storage of comparing, novel (non-afterburning) compressed air energy storage is in compression and cooling process, will retrieve the heat, certain circulation efficiency has been improved and certain carbon emission has been reduced, but along with the improvement of compressor and steam turbine system, under the background of stricter carbon emission restriction, to the circulation efficiency of compressed air energy storage, the storage capacity, the fuel demand, higher requirement has been proposed, it is indispensable to improve current compressed air energy storage technique.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a non-afterburning compressed air energy storage system introducing an external heat source.
The purpose of the invention is realized by the following technical scheme:
a non-afterburning compressed air energy storage system for introducing an external heat source comprises a wind power generation device, a transformer, an electric motor and a generator. The system also comprises a compressed air unit, a high-temperature heat storage unit and a low-temperature heat storage unit; the wind power generation equipment, the transformer, the motor, the compressed air unit and the generator are electrically connected in sequence, and the output of the generator is connected to the grid; the compressed air unit is respectively connected with the high-temperature heat storage unit and the low-temperature heat storage unit through pipelines.
Further, the compressed air unit includes a multi-stage compressor, a plurality of cooling devices, a pressure vessel, a multi-stage expander, a plurality of reheaters, a plurality of heat exchangers, and a turbine; the multistage compressor is connected through a pipeline, the output end of the motor is connected with the input end of the multistage compressor, the output end of the multistage compressor is connected with the input end of a pressure container, the output end of the pressure container is connected with the input end of a multistage expander through a first heat exchanger, and the output end of the multistage expander is connected with the input end of the turbine through a second heat exchanger; a plurality of cooling devices are arranged on a connecting pipeline between the multistage compressor and the pressure container at intervals; a plurality of reheaters are installed at intervals on the connecting pipe between the multistage expanders.
Further, the high-temperature heat storage unit comprises a plurality of first heat conduction pipes, a photo-thermal system and a high-temperature heat storage tank, and the high-temperature heat storage tank is respectively connected with the photo-thermal system; the photothermal system input is connected with the cooling device through a first heat pipe, and the photothermal system output is connected with the reheater and the first heat exchanger through the first heat pipe respectively.
Further, the photo-thermal system comprises a heat collecting pipe, a molten salt pump and a light condenser; one end of the heat collecting pipe is connected with the heat conducting pipe, and the other end of the heat collecting pipe is connected with the high-temperature heat storage tank; the molten salt pump is arranged on the heat conduction pipe; the condenser is arranged on the heat collecting pipe.
Further, the low-temperature heat storage unit comprises a low-temperature heat storage tank, a radiating pipe and a plurality of second heat conduction pipes; two ends of the low-temperature heat storage tank are respectively connected with a radiating pipe; the input end of the radiating pipe is connected with the cooling device through a second heat conduction pipe, and the output end of the radiating pipe is respectively connected with the reheater and the first heat exchange through the second heat conduction pipe.
Further, the compressed air unit further comprises a pressure reducing valve, and the pressure reducing valve is arranged on a connecting pipeline between the pressure container and the first heat exchanger.
Furthermore, the non-afterburning compressed air energy storage system capable of introducing the external heat source further comprises a water vapor circulation unit, wherein one end of the water vapor circulation unit is connected with the transformer, and the other end of the water vapor circulation unit is connected with the second heat exchanger.
Further, the water vapor circulation unit comprises a steam generating device, a water pump and a plurality of third heat conduction pipes; the steam generating device is connected with the transformer through a cable; the steam generating device is connected with the second heat exchanger through a plurality of third heat conduction pipes to form a closed loop; the water pump is arranged on the third heat conduction pipe.
Further, the multistage compressor comprises a first-stage compressor, a second-stage compressor and a third-stage compressor which are sequentially connected; the primary compressor is provided with an air inlet.
Further, an exhaust gas outlet is arranged on the turbine.
The invention has the beneficial effects that:
(1) The system belongs to a non-afterburning compressed air energy storage system introducing an external heat source, adopts a scheme of multi-stage compression and heat recovery, improves the air storage capacity and the circulation efficiency of the compressed air energy storage system, and reduces the demand of compressed air energy storage fuel and the emission of greenhouse gases.
(2) Be different from current compressed air energy storage, current compressed air energy storage system efficiency is not high, and this scheme introduces outside heat source at heat recovery's in-process, has laid the light and heat system promptly and has heated once more, wherein, uses thermal-collecting tube and spotlight ware, and the thermal-collecting tube adopts many times of inflection circuit, and the spotlight ware fully absorbs solar energy, further increases the heat of intraductal fused salt to make the system reach a higher cycle efficiency.
(3) Be different from current compressed air energy storage, current compressed air energy storage system is hardly accomplished to abandon completely and is fired with the fuel afterburning, and this system scheme has increased a steam generation device, and when illumination is not enough, can't obtain external heat source, utilizes unnecessary electric energy (millet price electricity), produces high temperature high pressure air flow through steam generation device and gets into the heat exchanger, further reduces the demand of fuel to reach the target of a "zero carbon".
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of the system architecture of the present invention;
in the drawings: 1-wind power plant, 2-transformer, 3-motor, 4-turbine, 5-generator, 6-pressure vessel, 7-first heat exchanger, 8-second heat exchanger, 9-first heat conduction pipe, 10-high temperature heat storage tank, 11-heat collection pipe, 12-molten salt pump, 13-low temperature heat storage tank, 14-heat dissipation pipe, 15-second heat conduction pipe, 16-pressure reducing valve, 17-steam generation device, 18-water pump, 19-third heat conduction pipe, 20-primary compressor, 21-secondary compressor, 22-tertiary compressor, 23-primary cooling device, 24-secondary cooling device, 25-post-cooling device, 26-primary expander, 27-secondary expander, 28-tertiary expander, 29-primary reheater, 30-secondary reheater.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In addition, the technical solutions in the embodiments may be combined with each other, but must be based on the realization of the technical solutions by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the technical solutions should be considered that the combination does not exist, and the technical solutions are not within the protection scope of the present invention.
As shown in fig. 1, a non-afterburning compressed air energy storage system, which introduces an external heat source, includes a wind power generation apparatus 1, a transformer 2, an electric motor 3, and an electric generator 5. The system also comprises a compressed air unit, a high-temperature heat storage unit and a low-temperature heat storage unit; the wind power generation equipment 1, the transformer 2, the motor 3, the compressed air unit and the generator 5 are electrically connected in sequence, and the output of the generator is connected to the grid; the compressed air unit is respectively connected with the high-temperature heat storage unit and the low-temperature heat storage unit through pipelines.
Further, the compressed air unit includes a multistage compressor, a plurality of cooling devices, a pressure vessel, a multistage expander, a plurality of reheaters, a plurality of heat exchangers, and a turbine 4; the multistage compressor is connected through a pipeline, the output end of the motor 3 is connected with the input end of the multistage compressor, the output end of the multistage compressor is connected with the input end of the pressure container 6, the output end of the pressure container 6 is connected with the input end of the multistage expander through the first heat exchanger 7, and the output end of the multistage expander is connected with the input end of the turbine 4 through the second heat exchanger 8; a plurality of cooling devices are arranged on a connecting pipeline between the multistage compressor and the pressure container 6 at intervals; a plurality of reheaters are installed at intervals on the connecting pipe between the multistage expanders.
The multistage compressor comprises a first-stage compressor 20, a second-stage compressor 21 and a third-stage compressor 22 which are connected in sequence; an air inlet is provided in the primary compressor 20. The plurality of cooling devices include a primary cooling device 23, a secondary cooling device 24, and a post-cooling device 25. The input end of the pressure container 6 is connected with a first-stage compressor 20, a first-stage cooling device 23, a second-stage compressor 21, a second-stage cooling device 24, a third-stage compressor 22 and a rear cooling device 25 in sequence.
The multistage expander comprises a primary expander 26, a secondary expander 27 and a tertiary expander 28, the reheater comprises a primary reheater 29 and a secondary reheater 30, and the output end of the pressure container 6 is sequentially connected with the first heat exchanger 7, the primary expander 26, the primary reheater 29, the secondary expander 27, the secondary reheater 30, the tertiary expander 28, the second heat exchanger 8 and the turbine 4.
Further, an exhaust gas outlet is provided on the turbine 4.
Further, the high-temperature heat storage unit comprises a plurality of first heat conduction pipes 9, a photo-thermal system and a high-temperature heat storage tank 10, and the high-temperature heat storage tank 10 is respectively connected with the photo-thermal system; the photo-thermal system input is connected with cooling device through first heat pipe 9, and the photo-thermal system output is connected with re-heater and first heat exchanger 7 respectively through first heat pipe 9.
Further, the photo-thermal system comprises a heat collecting pipe 11, a molten salt pump 12 and a condenser; one end of the heat collecting pipe 11 is connected with the heat conducting pipe 9, and the other end is connected with the high-temperature heat storage tank 10; the molten salt pump 12 is arranged on the heat conduction pipe 9; the condenser is arranged on the heat collecting pipe 11.
Further, the low-temperature heat storage unit comprises a low-temperature heat storage tank 13, a radiating pipe 14 and a plurality of second heat conducting pipes 15; two ends of the low-temperature heat storage tank 13 are respectively connected with a radiating pipe 14; the input end of the radiating pipe 14 is connected with the cooling device through a second heat conducting pipe 15, and the output end of the radiating pipe 14 is connected with the reheater and the first heat exchanger 7 through the second heat conducting pipe 15.
Further, the compressed air unit further comprises a pressure reducing valve 16, and the pressure reducing valve 16 is arranged on a connecting pipeline between the pressure container 6 and the first heat exchanger 7.
Furthermore, the non-afterburning compressed air energy storage system capable of introducing an external heat source further comprises a water vapor circulation unit, wherein one end of the water vapor circulation unit is connected with the transformer 2, and the other end of the water vapor circulation unit is connected with the second heat exchanger 8.
Further, the water vapor circulation unit comprises a steam generating device 17, a water pump 18 and a plurality of third heat conduction pipes 19; the steam generating device 17 is connected with the transformer 2 through a cable; the steam generating device 17 is connected with the second heat exchanger 8 through a plurality of third heat transfer pipes 19 to form a closed loop; the water pump is arranged on the third heat conduction pipe 19.
Wind power energy is stored in transmission attenuation, and power generation and grid connection are realized when wind power generation is in shortage. This system adopts high temperature fused salt as the heat carrier, catches the heat that produces in multistage compression and cooling process, further heats through light and heat system again, stores high temperature fused salt in high temperature heat accumulation jar, when the system expansion electricity generation, adds the heat of collecting again to the compressed air of release, and high temperature high-pressure gas is used for promoting the turbine and rotates, has increased steam generator simultaneously again, has further improved the circulation efficiency of compressed air energy storage and has restricted the carbon and discharged. Based on the characteristics of large-scale, long-time and quick response to output time of non-afterburning compressed air energy storage, the system is particularly suitable for areas with abundant wind power and is very suitable for balancing fluctuation of wind power output, so that the system combines wind power generation and compressed air energy storage to create a model for stably outputting wind power generation, and the demand on fuel can be eliminated in the model.
The system operation steps are as follows:
when the electric quantity is excessive or not at the peak value, the system is in a compression mode, wind power generation is carried out, the electric power is boosted through a transformer and then is used for driving a series of compressors through a motor, meanwhile, the compressors are connected with an intermediate cooling device and a tail end cooling device to reduce the temperature of compressed air, the compression efficiency is improved, meanwhile, heat generated in the compression and cooling processes is captured, and waste heat recovery is carried out in the whole compression cooling stage.
On one hand, the recovered heat passes through the heat collecting pipe, the recovered heat is further improved under the action of the light and heat absorbed by the condenser, the improved heat is stored in the high-temperature heat storage tank, and the stored heat is released to replace fuel to heat air recovered from the compressed air energy storage cave/pressure container in the power generation process, so that the requirement on natural gas is partially or completely eliminated; on the other hand, the air at normal temperature and normal pressure is compressed and cooled to be converted into air at low temperature and high pressure which is easy to store and is stored in the cave/pressure container.
When the electric quantity is in shortage or the electricity is needed, the system is in an expansion mode, low-temperature high-pressure air is extracted from the cave/pressure container and enters the heat exchanger, the expander and the reheater through the pressure reducing valve to gradually release compressed air, in the whole expansion process, the carried heat molten salt is extracted from the high-temperature heat storage tank by using the molten salt pump and enters the heat exchanger and the reheater, so that the extracted air flow reaches a high-temperature high-pressure state, the high-temperature high-pressure air flow drives the turbine to rotate, the internal energy of the air is converted into kinetic energy, and finally the kinetic energy is converted into electric energy through the generator and is connected to a grid for users to use. The molten salt temperature through the heat exchanger reduces, stores in passing through the cooling tube to the low temperature heat accumulation jar again, takes out from the low temperature heat accumulation jar through the molten salt pump at last and arrives in coolant and the heat exchanger to heat conduction circulation has been accomplished.
In order to further reduce carbon emission and approach the aim of 'zero carbon', when the light is insufficient and the heat provided by the photo-thermal system is insufficient to meet the heat required by the system during expanding power generation, the system is additionally provided with a technical route, part of power of the power is used for connecting a steam generating device through a transformer, when the recovered heat is insufficient to meet the high-temperature high-pressure air flow required by a turbine, the steam generating device is started to obtain high-temperature high-pressure steam to meet the energy required by the output of the turbine, and the high-temperature high-pressure steam is converted into liquid after heat is conducted and dissipated, and then a water pump is utilized to recover the liquid into the steam generating device through a pipeline, so that the aim of recycling water vapor is fulfilled.
Description of the drawings:
(1) The compressed air energy storage system adopts three-stage compression in the compression process, has fewer stages, and needs to introduce an external heat source through a heat collecting pipe and a condenser to improve the heat storage temperature so as to improve the work doing system, so that high-temperature molten salt is used as a heat carrier, such as: binary nitrate fused salt is adopted, and the working temperature is 500-565 ℃;
(2) The three-stage compressor is adopted for compression, the outlet temperature can reach about 300 degrees, heat is transferred to heat carrier molten salt through the coolant/heat exchanger, the highest temperature of the molten salt can reach about 565 degrees through the photo-thermal system, the efficiency of the compressor is about 87 percent, and the efficiency of the expansion machine is about 90 percent.
(3) Wherein the inlet pressure of the compressor is about 0.1MPa, the outlet pressure is about 5.5MPa, the compression ratios of the three-stage compressor are respectively 8.7, 7.2 and 2.2, the inlet temperature is 20 degrees, and the outlet temperature is 40 degrees; the pressure of the inlet of the expander is about 8MPa, the pressure of the outlet is about 0.4MPa, the expansion ratio of the three-stage expander is 4, the inlet temperature is 300 degrees, and the outlet temperature is 130 degrees.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A non-afterburning compressed air energy storage system introducing an external heat source comprises a wind power generation device (1), a transformer (2), a motor (3) and a generator (5), and is characterized by further comprising a compressed air unit, a high-temperature heat storage unit and a low-temperature heat storage unit; the wind power generation equipment (1), the transformer (2), the motor (3), the compressed air unit and the generator (5) are electrically connected in sequence, and the output of the generator is connected to the grid; the compressed air unit is respectively connected with the high-temperature heat storage unit and the low-temperature heat storage unit through pipelines.
2. A non-afterburning compressed air energy storage system for the introduction of an external heat source as defined in claim 1, wherein the compressed air unit comprises a multi-stage compressor, a plurality of cooling devices, a pressure vessel, a multi-stage expander, a plurality of reheaters, a plurality of heat exchangers and a turbine (4); the multistage compressor is connected through a pipeline, the output end of the motor (3) is connected with the input end of the multistage compressor, the output end of the multistage compressor is connected with the input end of the pressure container (6), the output end of the pressure container (6) is connected with the input end of the multistage expander through the first heat exchanger (7), and the output end of the multistage expander is connected with the input end of the turbine (4) through the second heat exchanger (8); a plurality of cooling devices are arranged on a connecting pipeline between the multistage compressor and the pressure container (6) at intervals; a plurality of reheaters are installed at intervals on the connecting pipe between the multistage expanders.
3. A non-afterburning compressed air energy storage system for introducing external heat source as claimed in claim 1, wherein the high temperature heat storage unit comprises a plurality of first heat conduction pipes (9), a photothermal system and a high temperature heat storage tank (10), the high temperature heat storage tank (10) is connected with the photothermal system respectively; the input end of the photo-thermal system is connected with the cooling device through a first heat conduction pipe (9), and the output end of the photo-thermal system is connected with the reheater and the first heat exchanger (7) through the first heat conduction pipe (9) respectively.
4. A non-afterburning compressed air energy storage system for the introduction of an external heat source as claimed in claim 3, wherein the photothermal system comprises a collector tube (11), a molten salt pump (12) and a condenser; one end of a heat collecting pipe (11) is connected with the heat conducting pipe (9), and the other end of the heat collecting pipe is connected with the high-temperature heat storage tank (10); the molten salt pump (12) is arranged on the heat conduction pipe (9); the condenser is arranged on the heat collecting pipe (11).
5. A non-after-burning compressed air energy storage system for introducing an external heat source according to claim 1, wherein the low-temperature heat storage unit comprises a low-temperature heat storage tank (13), a heat dissipation pipe (14) and a plurality of second heat conduction pipes (15); two ends of the low-temperature heat storage tank (13) are respectively connected with a radiating pipe (14); the input ends of the radiating pipes (14) are connected with the cooling device through second heat conducting pipes (15), and the output ends of the radiating pipes (14) are respectively connected with the reheater and the first heat exchanger (7) through the second heat conducting pipes (15).
6. A non-afterburning compressed air energy storage system for the introduction of an external heat source as claimed in claim 2, wherein the compressed air unit further comprises a pressure reducing valve (16), the pressure reducing valve (16) being arranged on the connecting conduit between the pressure vessel (6) and the first heat exchanger (7).
7. A non-afterburning compressed air energy storage system for the introduction of an external heat source as claimed in claim 1, further comprising a water vapor circulation unit connected at one end to the transformer (2) and at the other end to a second heat exchanger (8).
8. A non-afterburning compressed air energy storage system for the introduction of an external heat source as claimed in claim 7, wherein the water vapor circulation unit comprises a steam generating device (17), a water pump (18) and a plurality of third heat conducting pipes (19); the steam generating device (17) is connected with the transformer (2) through a cable; the steam generating device (17) is connected with the second heat exchanger (8) through a plurality of third heat conduction pipes (19) to form a closed loop; the water pump is arranged on the third heat conduction pipe (19).
9. A non-afterburning compressed air energy storage system for the introduction of an external heat source as defined in claim 2, wherein the multi-stage compressor comprises a first stage compressor (20), a second stage compressor (21) and a third stage compressor (22) connected in series; an air inlet is arranged on the primary compressor (20).
10. A non-afterburning compressed air energy storage system for the introduction of an external heat source as claimed in claim 2, wherein the turbine (4) is provided with an exhaust outlet.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211293745.2A CN115681098A (en) | 2022-10-21 | 2022-10-21 | Non-afterburning compressed air energy storage system with external heat source introduced |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211293745.2A CN115681098A (en) | 2022-10-21 | 2022-10-21 | Non-afterburning compressed air energy storage system with external heat source introduced |
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| CN115681098A true CN115681098A (en) | 2023-02-03 |
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| CN202211293745.2A Pending CN115681098A (en) | 2022-10-21 | 2022-10-21 | Non-afterburning compressed air energy storage system with external heat source introduced |
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