Compressed air energy storage power generation system and method coupled with supercritical carbon dioxide cycle
A technology of compressed air energy storage and power generation system, which is applied to combined engines, machines/engines, heat storage equipment, etc., can solve the problems of difficulty in storage, insufficient utilization of energy for re-release power generation and utilization, and reduce infrastructure construction costs. , to achieve full utilization and improve the effect of cycle efficiency
Active Publication Date: 2021-06-08
DONGFANG TURBINE CO LTD
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Problems solved by technology
[0004] The purpose of the present invention is to provide a compressed air energy storage power generation system coupled with a supercritical carbon dioxide cycle to solve the problem that in the existing compressed air energy storage and utilization process, the storage is difficult and the energy utilization in the way of releasing power generation and utilization is not sufficient question
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[0038] See figure 1 In this embodiment, a compressed air energy storage power generation system coupled with a supercritical carbon dioxide cycle is provided, including an air compressor 1, a primary heat exchanger 2, and a high-pressure container 13 for storing gas; the primary heat exchanger 2 has The first channel S1 and the second channel S2, the first channel S1 is used as the hot end of the primary heat exchanger 2, and the second channel S2 is used as the cold end of the primary heat exchanger 2; the inlet of the air compressor 1 is connected to the air and the outlet It communicates with the first passage S1, and the outlet of the first passage S1 communicates with the inlet of the high-pressure container 13 to form a pressure storage passage L1. Optionally, the air compressor 1 is driven by abandoned wind, abandoned light or low electricity.
[0039] The energy storage power generation system also includes a secondary heat exchanger 5, a low-temperature heat storage ...
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The invention relates to the field of energy conversion, and aims to solve the problems of difficult storage and insufficient energy utilization in the way of re-releasing power generation and utilization in the existing compressed air energy storage and utilization process, and provides a compressed air storage system coupled with a supercritical carbon dioxide cycle. Power generation system and method. The system includes air compressor, primary heat exchanger and high-pressure container for gas storage; secondary heat exchanger, low-temperature heat storage tank and high-temperature heat storage tank; primary air turbine, intermediate heat exchanger and secondary air Turbine; S‑CO2 Turbine, S‑CO2 Regenerator, S‑CO2 Compressor and S‑CO2 Heat Source Heater. The air compressor compresses the air and stores the heat in the heat transfer medium, and stores the high-pressure air in the high-pressure container; when needed, the high-pressure air is released to heat and drive the air turbine to generate electricity. At the same time, the outlet gas in the S-CO2 cycle is used for the compressed air power generation channel The air in it is heated. The beneficial effect of the invention is that the energy storage of the compressed air is reasonable and the utilization rate of the re-released energy is high.
Description
technical field [0001] The invention relates to the field of energy conversion, in particular to a compressed air energy storage power generation system and method coupled with a supercritical carbon dioxide cycle. Background technique [0002] Compressed air energy storage can use excess electrical energy to compress air, and temporarily convert electrical energy into air compression / heat energy for storage, so that it can be released and converted into electrical energy when needed. [0003] In the storage and reuse of energy in the prior art, there are problems such as high difficulty in storage and insufficient utilization of energy in the way of re-release for power generation and utilization. Contents of the invention [0004] The purpose of the present invention is to provide a compressed air energy storage power generation system coupled with a supercritical carbon dioxide cycle to solve the problem that in the existing compressed air energy storage and utilization...
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IPC IPC(8): F04B41/02F01D13/02F01D15/10F01K23/10F01K25/10F28D20/00
CPCF01D13/02F01D15/10F01K23/10F01K25/103F04B41/02F28D20/0034F28D2020/0047F28D2020/0078F28D2020/0082Y02E60/14Y02E60/16
Inventor 袁晓旭张小波魏小龙覃小文杨佐卫张文祥张晓丹周帅李应超周刚涂霜
Owner DONGFANG TURBINE CO LTD