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Liquid compressed air energy storage method and system capable of utilizing exhaust steam waste heat of air cooling unit

A technology of compressed air energy storage and air-cooling units, which is applied in steam applications, mechanical equipment, steam engine devices, etc., can solve problems such as less research, and achieve the effects of reducing power consumption, improving energy conversion efficiency, and promoting consumption

Pending Publication Date: 2022-02-18
XIAN THERMAL POWER RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing liquid air energy storage technology is mainly combined with renewable energy power generation systems, and there are few studies on the combination with thermal power unit systems

Method used

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  • Liquid compressed air energy storage method and system capable of utilizing exhaust steam waste heat of air cooling unit

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings.

[0033] see figure 1 , the liquid compressed air energy storage system for utilizing the waste heat of the exhaust steam of the air-cooling unit, including the cylinder 24 of the air-cooling unit. The steam of the unit cylinder 24 is connected to the air-cooled exhaust steam through the pipeline and utilizes the heat storage heat exchanger 5;

[0034] The steam extraction uses the thermal medium outlet of the heat storage heat exchanger 10 to connect the steam extraction with the high-temperature working medium storage tank 7, and the steam extraction uses the working medium of the high-temperature working medium storage tank 7 as a heat source through the pipeline connection. Energy heat exchanger 9, steam extraction uses energy release heat exchanger 9, the outlet of the working medium after heat release is connected to steam extraction and low-temperature working me...

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Abstract

The invention discloses a liquid compressed air energy storage method and system for utilizing exhaust steam waste heat of an air cooling unit. The system makes full use of effective mass-heat energy flow of a thermal power generating unit, electric energy consumption in an existing energy storage process is reduced through flow optimization, gradient utilization and storage of energy are achieved, energy utilization efficiency is improved, the overall energy conversion efficiency of energy storage implementation is improved, and efficient coupling application of an energy storage technology and a thermal power generating unit is achieved.

Description

technical field [0001] The invention belongs to the field of steam turbine power generation, and in particular relates to a liquid compressed air energy storage method and system for utilizing exhaust steam waste heat of an air-cooling unit. Background technique [0002] At present, renewable energy sources such as wind power and photovoltaic power generation are rapidly emerging, but the intermittent and random nature of renewable energy will have a great impact on the power grid, which will also seriously restrict its further development and the safety and stability of the entire power grid. [0003] Energy storage facilities can provide smooth power generation output, shave peaks and fill valleys, and realize the coordinated development between intermittent renewable energy sources and the grid. Further, through the addition of energy storage facilities on the power generation side, multiple functions such as enhancing unit regulation capabilities, effectively supporting ...

Claims

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Application Information

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IPC IPC(8): F01K13/00F01K3/00F01K3/06F01K17/02F01K17/04F01K25/10F01D15/08F01D15/10
CPCF01K13/00F01K17/02F01K17/04F01K3/006F01K3/06F01K25/10F01D15/08F01D15/10
Inventor 高庆屈杰居文平马汀山荆涛陈胜利朱蓬勃
Owner XIAN THERMAL POWER RES INST CO LTD