CN112780375A - Compressed air energy storage system coupled with thermal power plant and using method thereof - Google Patents
Compressed air energy storage system coupled with thermal power plant and using method thereof Download PDFInfo
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- CN112780375A CN112780375A CN202110247004.XA CN202110247004A CN112780375A CN 112780375 A CN112780375 A CN 112780375A CN 202110247004 A CN202110247004 A CN 202110247004A CN 112780375 A CN112780375 A CN 112780375A
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- 238000004146 energy storage Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 238000007906 compression Methods 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 14
- 230000006835 compression Effects 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 9
- 238000010248 power generation Methods 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 7
- 238000009833 condensation Methods 0.000 claims description 6
- 230000005494 condensation Effects 0.000 claims description 6
- 239000002699 waste material Substances 0.000 claims description 6
- 239000002826 coolant Substances 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 238000005338 heat storage Methods 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 230000005611 electricity Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 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
- 230000008676 import Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B23/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01B23/10—Adaptations for driving, or combinations with, electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/08—Adaptations for driving, or combinations with, pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/006—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for driven by steam engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/02—Pumping installations or systems specially adapted for elastic fluids having reservoirs
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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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- Engineering & Computer Science (AREA)
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- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention discloses a compressed air energy storage system coupled with a thermal power plant and a using method thereof, wherein the compressed air energy storage system comprises thermal equipment and a compressed air energy storage system of the thermal power plant: a steam outlet of thermal equipment of the thermal power plant is connected with a compressor driving steam turbine of the compressed air energy storage system; the compressed air energy storage system comprises a compressor, a compressor driving steam turbine, a heat exchange system, an air storage chamber, an air expander and a generator, wherein an air inlet of the compressor is communicated with air, the compressor driving steam turbine is connected with the compressor, and the compressor driving steam turbine is used for driving the compressor to compress air; the air outlet of the compressor is connected with the air inlet of the air storage chamber through the heat exchange system, and the air storage chamber is used for storing compressed air; an air outlet of the air storage chamber is connected with an air inlet of an air expander through a heat exchange system, and the expander is connected with a generator; the invention has the advantages of large adjusting range and high response speed.
Description
Technical Field
The invention belongs to the technical field of energy storage, and particularly relates to a compressed air energy storage system coupled with a thermal power plant and a using method thereof.
Background
In recent years, the installed capacity of new energy power generation such as wind power generation, photovoltaic power generation and the like is rapidly increased. The installed scale of new energy in partial regions far exceeds the local absorption capacity, and the problems of wind and light abandonment are serious. In order to improve the utilization rate of new energy power generation and reduce wind abandonment and light abandonment, the flexibility of a power grid in a thermal power generating unit needs to be further improved. The adjustment range of the thermal power generating unit is generally 50-100% due to the requirement of the combustion stability of the coal-fired boiler. In the current commercialized large-scale energy storage technology, only the compressed air energy storage technology can realize energy storage with high capacity, low cost and long time.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a compressed air energy storage system coupled with a thermal power plant and a using method thereof, and aims to improve the flexibility of a conventional thermal power unit and the peak regulation capacity.
In order to achieve the above object, the present invention provides a compressed air energy storage system coupled to a thermal power plant, comprising thermal power plant equipment and a compressed air energy storage system:
the compressed air energy storage system comprises a compressor, a compressor driving steam turbine, a heat exchange system, an air storage chamber, an air expander and a generator, wherein an air inlet of the compressor is communicated with air, the compressor driving steam turbine is connected with the compressor, and the compressor driving steam turbine is used for driving the compressor to compress air; the air outlet of the compressor is connected with the air inlet of the air storage chamber through the heat exchange system, and the air storage chamber is used for storing compressed air; an air outlet of the air storage chamber is connected with an air inlet of the air expander through a heat exchange system, and the expander is connected with a generator; and a steam outlet of the thermal power plant thermal equipment is connected with a compressor driving steam turbine of the compressed air energy storage system.
Further, the compressor is multistage compressor, sets up heat transfer heat-retaining system and retrieves compression heat after every level compression, and the compressor that adjacent setting passes through heat transfer system and connects, heat transfer system's cooling medium import and the condensate outlet of condensate tank are connected, heat transfer system's cooling medium export and the access connection of oxygen-eliminating device, heat transfer system is used for retrieving the compression heat that compression process produced.
Furthermore, the cooling working medium adopted by the heat exchange system is condensed water of the thermal power plant, and the temperature of the condensed water after heat exchange is increased and enters a deaerator of the thermal power plant.
Furthermore, the air expansion machine is set to be a multi-stage air expansion machine, the air expansion machines which are adjacently arranged are connected through a heat exchange system, a heating working medium inlet of the heat exchange system is connected with an air suction opening of the high-pressure heater, a heating working medium outlet of the heat exchange system is connected with an inlet of the deaerator, and the heat exchange system is used for heating compressed air in the air storage chamber.
Further, the adjacent air expanders are connected to the same generator; and the heating working medium of the heat exchanger adopts a high-pressure heater of a steam turbine of the thermal power plant to extract steam, and the heat-exchanged heating working medium is introduced into a deaerator of the thermal power plant.
Further, when the compressor driving turbine is a condensing turbine, a waste steam outlet of the compressor driving turbine is connected with an air inlet of a condenser; and when the compressor driving steam turbine is a back pressure steam turbine, a waste steam outlet of the compressor driving steam turbine is connected with a gas supply pipe network.
Further, the steam output from the steam outlet of the thermal power plant may be main steam of a boiler, reheat steam of the boiler, or extracted steam of a high-pressure heater.
Further, the gas storage chamber is a waste mine hole, a salt cavern, an underground cave or a ground gas storage tank group.
Furthermore, the compressed air energy storage system coupled with the thermal power plant can enable the adjusting range of the thermal power plant to reach 10% -100%.
When the thermal power plant is in deep peak shaving, the thermodynamic equipment of the thermal power plant leads steam into the compressor to drive the steam turbine to do work, and exhausted steam after doing work is discharged into the condenser; air enters the compressor from an air inlet of the compressor, the compressor drives the steam turbine to drive the compressor to compress the air, high-temperature compressed air is obtained, the compressor is connected with the air storage chamber through a heat exchange system, a cooling working medium inlet of the heat exchange system is connected with an outlet of a condensation water tank, low-temperature condensed water in the condensation water tank is introduced into the heat exchange system, the high-temperature compressed air and the low-temperature condensed water exchange heat in the heat exchange system, the compressed air after heat exchange is introduced into the air storage chamber to be stored, and the condensed water after heat exchange is introduced into the oxygen remover; when the peak generates electricity, high-pressure air in the air storage chamber is introduced into the heat exchange system, a heating working medium inlet of the heat exchange system is connected with a steam extraction port of the high-pressure heater, high-temperature steam is introduced into the heat exchange system, compressed air and the high-temperature steam exchange heat in the heat exchange system, condensed water after the heat of the steam is released is introduced into the deaerator, the compressed air after the temperature is increased is introduced into the air expander, and the air expander does work to drive the generator to generate electricity.
Compared with the prior art, the compressed air energy storage system has the advantages of large installed capacity, low construction and operation cost and long operation time, the compressed air energy storage system is coupled with a thermal power plant thermodynamic system, large-scale energy storage with high efficiency and low cost can be realized, the flexibility of a thermal power unit is greatly improved by coupling the compressed air energy storage system, and the compressed air energy storage system is applied to the thermal power plant, so that the flexibility of the thermal power plant is improved.
The heat exchange system in the compressed air energy storage system cools the compressed air and recovers the compression heat, the existing condensed water system of the thermal power plant is adopted to cool the compressed air, and the recovered compression heat enters the existing deaerator of the thermal power plant through the condensed water, so that the utilization of the compression heat is realized.
According to the invention, the compressed air energy storage system is coupled with the thermal power plant, so that the flexibility and the peak regulation capability of the conventional thermal power unit are obviously improved, the regulation range of the thermal power unit can be increased from 50-100% to 10-100%, when the thermal power unit participates in the peak regulation of a power grid, higher peak regulation income can be obtained, the flexibility of the thermal power unit is improved, the flexibility refers to the load change range of the thermal power unit, the larger the change range is, the better the flexibility is, and when the thermal power unit participates in the peak regulation of the power grid, the higher peak regulation income can be obtained.
Drawings
FIG. 1 is a schematic diagram of a preferred compressed air energy storage system coupled to a thermal power plant.
In the drawings: 1 is a compressor; 2 is compressor driving turbine; 3 is the boiler reheater outlet; 4 is a condenser; 5 is a heat exchange system; 6 is a condensation water tank; 7 is a deaerator; 8 is a steam extraction port of the high-pressure heater; 9 is an air storage chamber; 10 is an air expander; the generator 11 is a generator.
Detailed Description
The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which some embodiments of the invention are shown.
Fig. 1 is a schematic composition diagram of a preferred embodiment of a compressed air energy storage system coupled to a thermal power plant, including thermal equipment and a compressed air energy storage system of the thermal power plant, wherein the compressed air energy storage system includes a compressor 1, a compressor driving turbine 2, a heat exchange system 5, an air storage chamber 9, an air expander 10, and a generator 11; the thermal power plant comprises a boiler reheater outlet 3, a condenser 4, a condensation water tank 6, a deaerator 7 and a high-pressure heater steam extraction port 8.
The compressor 1 can be provided with a multi-stage compressor according to actual needs; the air expander 10 can be provided with a plurality of stages of air expanders according to actual needs; in the preferred embodiment of the invention, the number of stages of the multistage compressor is 2-8, and a heat exchange and heat storage system is arranged after each stage of compression to recover compression heat, so that the efficiency is improved. In another preferred embodiment of the invention, a heat exchange system is arranged between stages of the multistage expansion machine to heat the compressed air entering the compressor, so that the power generation efficiency is improved; the number of stages of the multistage expander is 2-4.
In the present example, the boiler reheater outlet 3 is connected to a compressor drive turbine 2 of a compressed air energy storage system, the air inlet of the compressor 1 is connected to air, the compressor drive turbine 2 is connected to the compressor 1, and the compressor drive turbine 2 drives the compressor 1 to compress air; an air outlet of the compressor 1 is connected with an air inlet of an air storage chamber through a hot side of the heat exchange system 5, and the air storage chamber 9 is used for storing compressed air; an air outlet of the air storage chamber 9 is connected with an air inlet of an air expander 10 through a cold side of the heat exchange system 5, and the air expander 10 is connected with a generator 11 to drive the generator 11 to generate electricity.
In the embodiment, two stages of compressors are arranged, the two stages of compressors are connected through the hot side of a heat exchange system, a compressed air outlet of the last stage of compressor 1 is connected with a hot side inlet of the heat exchange system 5, a hot side outlet of the heat exchange system 5 is connected with a gas storage chamber 5 through a pipeline, a cooling working medium inlet of the heat exchange system 5 is connected with a condensed water outlet of a condensed water tank 6, and a cooling working medium outlet of the heat exchange system 5 is connected with an inlet of a deaerator 7; the cooling working medium adopted by the heat exchange system 5 is condensed water of a thermal power plant, and the cooling working medium after heat exchange is introduced into a deaerator 7 of the thermal power plant; the liquid water in the deaerator enters a boiler in a thermal power plant to be heated into steam.
In the embodiment, two stages of air expanders are arranged, the two stages of air expanders are connected through the cold side of the heat exchange system 5, a compressed air outlet of the air storage chamber 9 is connected with a cold side inlet of the heat exchange system 5 through a pipeline, and a cold side outlet of the heat exchange system 5 is connected with a compressed air inlet of the first stage of air expander;
furthermore, the two-stage air expansion machines are connected to the same generator, the heating working medium of the heat exchange system 5 adopts a high-pressure heater of a steam turbine of the thermal power plant to extract steam, and the heating working medium after heat exchange is introduced into a deaerator 7 of the thermal power plant.
In the embodiment, the compressor driving turbine 2 adopts a condensing turbine, and a waste steam outlet of the compressor driving turbine is connected with an air inlet of the condenser 4.
The compressor driving turbine 2 may also be a back pressure turbine, and when a back pressure turbine is used, the exhaust steam outlet of the compressor driving turbine is connected to the air supply pipe network.
In the example, the thermal power plant drives the compressor to drive the turbine 2 by using the reheat steam of the boiler, and the steam can also be the main steam of the boiler or the extraction steam of the high-pressure heater.
Preferably, the gas storage chamber is a waste mine hole, a salt cavern, an underground cave or a ground gas storage tank group.
A compressed air energy storage system coupled with a thermal power plant is characterized in that when energy storage and peak load regulation are carried out, redundant partial reheated steam is introduced into a compressor driving turbine 2 of the compressed air energy storage system from a boiler reheater outlet 3 to do work, the compressor driving turbine 2 drives a two-stage compressor to compress air, high-temperature compressed air obtained after compression is introduced into a hot side of a heat exchange system 5, condensed water of the thermal power plant is introduced into a condensed water tank 6, low-temperature condensed water in the condensed water tank 6 enters a cold side of the heat exchange system 5 under the driving of a condensed water pump, high-temperature compressed air and low-temperature condensed water of the thermal power plant exchange heat, the compressed air after heat exchange is introduced into a gas storage chamber to be stored, and the condensed water after heat exchange enters a deaerator 7 of; partial reheated steam is introduced into the compressor driving steam turbine 2 to do work to drive the compressor 1 to compress air, so that the steam quantity entering the power generation steam turbine of the thermal power plant is reduced, the power generation power of the generator can be reduced, and energy storage peak regulation is realized.
When the power is generated at a peak, high-pressure air in the air storage chamber 9 is introduced into a cold side of the heat exchange system 5, part of steam is introduced from a steam extraction port 8 of the high-pressure heater to enter a hot side of the heat exchange system 5, high-temperature steam exchanges heat with compressed air, the heat exchange system 5 is arranged at an inlet 10 of each stage of air expander, water after the steam releases heat and is condensed enters a deaerator 7 of a thermal power plant, and the heated compressed air enters two stages of air expanders to expand to do work to drive a generator 11 to generate power; the air expander 10 drives the generator 11 to generate electricity, and the generated power of the thermal power plant is increased.
It should be noted that the above description is only a part of the embodiments of the present invention, and equivalent changes made to the system described in the present invention are included in the protection scope of the present invention. Persons skilled in the art to which this invention pertains may substitute similar alternatives for the specific embodiments described, all without departing from the scope of the invention as defined by the claims.
Claims (10)
1. A compressed air energy storage system coupled with a thermal power plant, comprising thermal power plant thermal equipment and a compressed air energy storage system:
the compressed air energy storage system comprises a compressor (1), a compressor driving steam turbine (2), a heat exchange system (5), an air storage chamber (9), an air expander (10) and a generator (11), wherein an air inlet of the compressor (1) is communicated with air, the compressor driving steam turbine (2) is connected with the compressor (1), and the compressor driving steam turbine (2) is used for driving the compressor to compress air; an air outlet of the compressor (1) is connected with an air inlet of an air storage chamber through a heat exchange system (5), and the air storage chamber (9) is used for storing compressed air; an air outlet of the air storage chamber (9) is connected with an air inlet of the air expander (10) through a heat exchange system (5), and the expander (10) is connected with a generator (11); and a steam outlet of the thermal power plant thermal equipment is connected with a compressor driving steam turbine (2) of the compressed air energy storage system.
2. The compressed air energy storage system coupled with the thermal power plant as claimed in claim 1, wherein the compressor (1) is a multi-stage compressor, a heat exchange and heat storage system is arranged after each stage of compression to recover compression heat, the adjacently arranged compressors (1) are connected through a heat exchange system (5), a cooling working medium inlet of the heat exchange system (5) is connected with a condensed water outlet of a condensed water tank (6), a cooling working medium outlet of the heat exchange system (5) is connected with an inlet of a deaerator (9), and the heat exchange system (5) is used for recovering the compression heat generated in the compression process.
3. The compressed air energy storage system coupled with the thermal power plant as claimed in claim 2, wherein the cooling medium adopted by the heat exchange system (5) is condensed water of the thermal power plant, and the temperature of the condensed water after heat exchange is increased and enters a deaerator (7) of the thermal power plant.
4. The compressed air energy storage system coupled with the thermal power plant as claimed in claim 1, wherein the air expanders (10) are arranged as multi-stage air expanders, the adjacently arranged air expanders (10) are connected through a heat exchange system (5), a heating working medium inlet of the heat exchange system (5) is connected with a suction opening (8) of a high-pressure heater, a heating working medium outlet of the heat exchange system (5) is connected with an inlet of a deaerator (7), and the heat exchange system (5) is used for heating compressed air in an air storage chamber.
5. A compressed air energy storage system coupled to a thermal power plant according to claim 4, characterized in that said adjacent air expanders (10) are connected to the same generator; and the heating working medium of the heat exchanger (5) is extracted by a high-pressure heater of a steam turbine of the thermal power plant, and the heat-exchanged heating working medium is introduced into a deaerator (7) of the thermal power plant.
6. A compressed air energy storage system coupled with a thermal power plant according to claim 1, characterized in that when the compressor drive turbine (2) is a condensing turbine, the exhaust steam outlet of the compressor drive turbine (2) is connected with the air inlet of a condenser (4); when the compressor driving steam turbine (2) is a back pressure steam turbine, a steam exhaust outlet of the compressor driving steam turbine (2) is connected with a gas supply pipe network.
7. A compressed air energy storage system coupled with a thermal power plant according to claim 1, wherein the steam output from the steam outlet of the thermal equipment of the thermal power plant can be main steam of a boiler, reheat steam of the boiler or extraction steam of a high-pressure heater.
8. A compressed air energy storage system coupled to a thermal power plant according to claim 1, characterized in that the gas storage chamber (9) is a waste mine, salt cavern, underground cavern or ground gas storage tank group.
9. A compressed air energy storage system coupled with a thermal power plant according to claim 1, wherein the compressed air energy storage system coupled with the thermal power plant can achieve a regulation range of the thermal power plant of 10% to 100%.
10. A method for using a compressed air energy storage system coupled with a thermal power plant is characterized in that when deep peak shaving is performed, thermal equipment of the thermal power plant introduces steam into a compressor driving turbine (2) to do work, and exhaust steam after the work is done is discharged into a condenser (4); air enters the compressor from an air inlet of the compressor (1), the compressor drives a steam turbine (2) to drive the compressor (1) to compress the air, high-temperature compressed air is obtained, the compressor (1) is connected with an air storage chamber (9) through a heat exchange system (5), a cooling working medium inlet of the heat exchange system (5) is connected with an outlet of a condensation water tank (6), low-temperature condensed water in the condensation water tank (6) is introduced into the heat exchange system (5), the high-temperature compressed air and the low-temperature condensed water exchange heat in the heat exchange system (5), the compressed air after heat exchange is introduced into the air storage chamber (9) to be stored, and the condensed water after heat exchange is introduced into an oxygen remover (7); when the peak power generation, the high-pressure air in the air storage chamber (9) is introduced into the heat exchange system (5), a heating working medium inlet of the heat exchange system (5) is connected with a steam extraction port (8) of a high-pressure heater, the high-temperature steam is introduced into the heat exchange system (5), the compressed air and the high-temperature steam exchange heat in the heat exchange system, the condensed water after the heat release of the steam is introduced into the deaerator (7), the compressed air after the temperature rise is introduced into the air expander (10), and the air expander (10) does work to drive the generator (11) to generate power.
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| CN202110247004.XA CN112780375A (en) | 2021-03-05 | 2021-03-05 | Compressed air energy storage system coupled with thermal power plant and using method thereof |
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| CN202110247004.XA CN112780375A (en) | 2021-03-05 | 2021-03-05 | Compressed air energy storage system coupled with thermal power plant and using method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202586A (en) * | 2021-06-09 | 2021-08-03 | 中国科学院理化技术研究所 | Liquid air energy storage power generation system jointly operated with thermal power plant |
| CN113279829A (en) * | 2021-07-02 | 2021-08-20 | 浙江大学 | System and method for coupling compressed air energy storage and thermal power generation |
| CN113982891A (en) * | 2021-10-25 | 2022-01-28 | 西安交通大学 | Compressed air composite energy storage system for old thermal power plant boiler transformation and operation method thereof |
| CN114087046A (en) * | 2021-12-10 | 2022-02-25 | 西安西热锅炉环保工程有限公司 | Gravity compressed air energy storage system and method based on coal yard of thermal power plant |
| CN114215619A (en) * | 2021-09-24 | 2022-03-22 | 华能南京金陵发电有限公司 | Energy storage power generation system for enhancing deep peak regulation capability of coal-fired unit |
-
2021
- 2021-03-05 CN CN202110247004.XA patent/CN112780375A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202586A (en) * | 2021-06-09 | 2021-08-03 | 中国科学院理化技术研究所 | Liquid air energy storage power generation system jointly operated with thermal power plant |
| CN113279829A (en) * | 2021-07-02 | 2021-08-20 | 浙江大学 | System and method for coupling compressed air energy storage and thermal power generation |
| CN113279829B (en) * | 2021-07-02 | 2022-04-08 | 浙江大学 | System and method for coupling compressed air energy storage and thermal power generation |
| CN114215619A (en) * | 2021-09-24 | 2022-03-22 | 华能南京金陵发电有限公司 | Energy storage power generation system for enhancing deep peak regulation capability of coal-fired unit |
| CN113982891A (en) * | 2021-10-25 | 2022-01-28 | 西安交通大学 | Compressed air composite energy storage system for old thermal power plant boiler transformation and operation method thereof |
| CN113982891B (en) * | 2021-10-25 | 2022-12-30 | 西安交通大学 | Compressed air composite energy storage system for old thermal power plant boiler transformation and operation method thereof |
| CN114087046A (en) * | 2021-12-10 | 2022-02-25 | 西安西热锅炉环保工程有限公司 | Gravity compressed air energy storage system and method based on coal yard of thermal power plant |
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