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Coal-fired generator set coupling liquid compressed air energy storage peak regulation system and method

A technology for compressed air energy storage and generator sets, which is applied in the directions of machines/engines, mechanical equipment, steam engine installations, etc., can solve the problems of high operating cost and low energy storage efficiency, and achieves the goal of improving operating efficiency and improving the ability to regulate power output. Effect

Pending Publication Date: 2020-12-08
XIAN THERMAL POWER RES INST CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the overall energy storage efficiency of the conventional liquid compressed air energy storage system is low and the operating cost is high.

Method used

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  • Coal-fired generator set coupling liquid compressed air energy storage peak regulation system and method

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Embodiment Construction

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0030] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The invention relates to a coal-fired generator set coupling liquid compressed air energy storage peak regulation system and method. The coal-fired generator set coupling liquid compressed air energystorage peak regulation system comprises a coal-fired generator set, a first clutch-gear box, a second clutch-gear box and a liquid compressed air energy storage system, and a low-pressure cylinder inthe coal-fired generator set is connected with a first generator in the coal-fired generator set through the first clutch-gear box and connected with an air compressor in the liquid compressed air energy storage system through the second clutch-gear box. After being pressurized by the air compressor, air enters a refrigeration expander to expand and release heat, separation of liquid air and gaseous air is completed in a gas-liquid separation device, and the liquid air is stored in an air storage tank; and when the liquid compressed air energy storage system generates power outwards, liquid air is pressurized by a booster pump and heated by a heater and then enters an air expander to expand and do work to drive a second generator to generate power.

Description

【Technical field】 [0001] The invention belongs to the technical field of liquid compressed air energy storage, and relates to an energy storage peak regulation system and method, in particular to a liquid compressed air energy storage peak regulation system and method coupled with a coal-fired generator set. 【Background technique】 [0002] With the improvement of people's awareness of environmental protection and the necessity of sustainable development of the global economy, in recent years, wind power, photovoltaic and other renewable energy power generation has developed rapidly. However, there are contradictions between the characteristics of renewable energy such as large peak-to-valley difference between day and night and strong volatility, and the requirements for continuous and stable power grid operation. Energy storage technology can well bridge the characteristic differences between renewable energy power generation and the grid, and solve the bottleneck restricti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K7/22F01K11/02F01D15/10F01D15/08F04B35/02F04B41/02F01K1/04F01K3/14F01B23/10
CPCF01B23/10F01D15/08F01D15/10F01K1/04F01K3/14F01K7/22F01K11/02F04B35/006F04B41/02Y02E60/16
Inventor 王妍居文平马汀山吕凯张建元黄嘉驷林轶王东晔郑天帅刘学亮杨利
Owner XIAN THERMAL POWER RES INST CO LTD
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