Compressed air energy storage system coupled with thermal power plant and use method of compressed air energy storage system

A technology of compressed air energy storage and compressed air, which can be used in steam engine installations, liquid variable capacity machinery, piston pumps, etc., and can solve the problems of abandoned light and wind.

Pending Publication Date: 2021-05-11
HUANENG CLEAN ENERGY RES INST +1
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The installed capacity of new energy in some areas has far exceeded the local consumption capacity, resulting in serious problems of curtailment of wind and light

Method used

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  • Compressed air energy storage system coupled with thermal power plant and use method of compressed air energy storage system

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, the content of which is to explain rather than limit the present invention.

[0021] figure 1 It is a schematic composition diagram of a preferred embodiment of a compressed air energy storage system coupled with a thermal power plant, including a thermal power plant thermal equipment and a compressed air energy storage system, wherein the compressed air energy storage system includes a compressor 1 and a compressor-driven steam turbine 2 , heat exchange system 5, gas storage chamber 9, air expander 10, generator 11; thermal power plant thermal equipment includes boiler reheater outlet 3, condenser 4, condensate water tank 6, deaerator 7, high pressure heater pump Steam port 8.

[0022] Compressor 1 can be provided with multi-stage compressors according to actual needs; air expander 10 can be provided with multi-stage air expanders according to ...

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Abstract

The invention discloses a compressed air energy storage system coupled with a thermal power plant and a using method of the compressed air energy storage system. The compressed air energy storage system comprises thermal power plant thermal equipment and a compressed air energy storage system body and is characterized in that 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 body; the compressed air energy storage system body comprises a compressor, the compressor driving steam turbine, a heat exchange system, an air storage chamber, an air expansion machine and a power generator, an air inlet of the compressor communicates with air, and the compressor driving steam turbine is connected with the compressor and used for driving the compressor to compress air; an air outlet of the compressor is connected with an air inlet of the air storage chamber through the heat exchange system, and the air storage chamber is used for storing compressed air; and an air outlet of the air storage chamber is connected with an air inlet of the air expansion machine through the heat exchange system, and the expansion machine is connected with the power generator. The compressed air energy storage system has the advantages that the adjustment range is large and the responding speed is quick.

Description

technical field [0001] The invention belongs to the technical field of energy storage, and in particular relates to a compressed air energy storage system coupled with a thermal power plant and an application method thereof. Background technique [0002] In recent years, the installed capacity of wind power, photovoltaic power generation and other new energy power generation has grown rapidly. The installed capacity of new energy in some areas has far exceeded the local consumption capacity, resulting in serious problems of curtailment of wind and light. In order to improve the utilization rate of new energy power generation and reduce the curtailment of wind and light, it is necessary to further improve the flexibility of the power grid in thermal power units. Limited by the requirements of combustion stability of coal-fired boilers, the adjustment range of thermal power units is generally 50% to 100%. Among the currently commercialized large-scale energy storage technolo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K27/00F01K13/00F01D15/08F01B23/10F04B41/02F04B35/00
CPCF01B23/10F01D15/08F01K13/00F01K27/00F04B35/006F04B41/02Y02E60/16
Inventor 文军裴杰徐若晨刘大为刘明义
Owner HUANENG CLEAN ENERGY RES INST
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