Non-supplementary fuel type liquefied air energy storage power generation system

A technology of liquefied air and power generation systems, which is applied in the direction of machines/engines, steam engine devices, mechanical equipment, etc., can solve the problems of low system efficiency and no practical value, and achieve the effect of improving cycle efficiency, good business prospects, and wide application range

Pending Publication Date: 2018-07-03
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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AI Technical Summary

Problems solved by technology

Japan has also actively carried out research on liquefied air energy storage technology in recent years, such as Mitsubishi and Hitachi, etc., but because the system efficiency is too low, it does not have much practical value

Method used

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  • Non-supplementary fuel type liquefied air energy storage power generation system

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Embodiment Construction

[0024] The present invention is a non-supplementary combustion type liquefied air energy storage power generation system. The system includes a liquefied air system, a power generation system and a thermal storage system. The combination of these three systems achieves the purpose of the present invention. Wind power is used as the driving energy to drive the air compressor to work. After the clean air is compressed by the air compressor A, it is cooled to normal temperature by the heat exchanger A and then enters the air compressor B. After being further compressed, it is cooled to normal temperature by the heat exchanger B. The high-pressure air enters the GM refrigerator to further cool down and liquefy through the throttle valve, and the liquid air reaches the storage tank for storage; when the power consumption peaks, the liquid air is drawn out, and after being pressurized by the cryopump, it is first heated in the vaporization heat exchanger. Then, after exchanging heat ...

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Abstract

The invention discloses a non-supplementary fuel type liquefied air energy storage power generation system. The power generation system comprises a liquefied air system, a power generation system anda heat storage system. According to the power generation system, air compressors are driven by the wind power, and clean air is compressed through the air compressor A, enters the air compressor B after being cooled to the normal temperature through a heat exchanger A, and then is cooled to the normal temperature through a heat exchanger B after being further compressed; high-pressure air enters aGM refrigerator to be further cooled and is liquefied by a throttling valve, and the liquid air reaches the storage tank for storage; during an electricity peak, after the liquid air is led out and pressurized by a low-temperature pump, firstly, the liquid air is heated and gasified in the gasified heat exchanger, is subjected to heat exchange with a high-temperature medium from a heat accumulator in a heat exchanger C, then enters a turbine A to do work, then enters a turbine B to do work after being heated by a heat exchanger D, and finally enters a turbine C to do work after being heated by a heat exchanger E so as to drive a generator to generate electricity. Being a novel energy storage power generation technology, the novel energy storage power generation technology does not need fossil fuel as a supplement and has a good application prospect.

Description

technical field [0001] The invention relates to a novel liquefied air energy storage and power generation system, especially a non-supplementary combustion type liquefied air energy storage power generation system, which does not require fossil fuels as a supplement in the whole process, and belongs to the technical field of green energy. Background technique [0002] The depletion of fossil energy and the deteriorating environment have become important bottlenecks restricting the development of the global economy and society. In order to solve this problem, in addition to extensively saving energy and improving the efficiency of fossil energy utilization, large-scale development and utilization of renewable energy has become an important choice and inevitable trend of global energy development. Wind energy and solar energy are the most widely distributed and abundant in the world, and they are the focus of the development and utilization of renewable energy. Wind power is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D15/10F01K27/02
CPCF01D15/10F01K27/02
Inventor 谢英柏薛晓东
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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