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A distributed energy supply compressed gas energy storage system

A compressed gas and energy storage system technology, which is applied in the field of energy storage technology and distributed energy supply, can solve the problems of inability to flexibly respond to changes and limitations of different energy demands, improve storage and utilization efficiency, strengthen energy supply capabilities, and realize The effect of recycling

Active Publication Date: 2017-01-25
INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The energy storage efficiency of these systems is high (50%-70%), but they are mainly based on power supply, so they cannot flexibly respond to changes in human demand for different energies (electricity, heat, cold), and are limited in practical applications.

Method used

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  • A distributed energy supply compressed gas energy storage system

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Embodiment Construction

[0037] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0038] Such as figure 1 As shown, the distributed energy supply compressed gas energy storage system of the present invention consists of a water storage tank 1, a switch valve 2 at the water supply end of the electrolysis equipment, a check valve 3 at the water supply end of the electrolysis equipment, a filter 4 at the water supply end of the electrolysis equipment, and an electrolysis equipment 5, Hydrogen and oxygen separator 6, hydrogen and oxygen filter 7, oxygen c...

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Abstract

The invention relates to a distributive energy supply compressed gas energy storage system. According to the system, in the energy storage stage, surplus electric power is utilized for finishing water electrolysis, methane preparing, carbon dioxide, methane and air compressing and underground storing, and thermal storage in the air compressing process. In the energy releasing stage, an underground gas storage system provides sufficient methane, carbon dioxide and air, an electrolysis water system and a methane preparing system provide a high-temperature heat source for a carbon dioxide energy releasing system and an air energy releasing system, and it is guaranteed that the carbon dioxide energy releasing system and the air energy releasing system can provide sufficient electric energy. Heat generated in the air compressing process and methane combustion heat are used for heat supplying, and heat of different grades can be provided according to the heat grade differences of users. Air expanded through the air energy releasing system provides the cooling capacity for the users.

Description

technical field [0001] The present invention relates to the field of energy storage technology and distributed energy supply technology. Specifically, it is a technology that integrates electrolysis of water, preparation of methane, underground storage and utilization of methane, carbon dioxide and air, and uses surplus electric energy or renewable energy As the main energy source, it is a multi-functional energy storage system that can supply electricity, heat and cold. Background technique [0002] Energy storage technology is an important method to reduce energy waste and improve energy utilization efficiency. Among the various energy storage technologies with relatively mature technology at present, compressed gas energy storage technology is considered to be a physical energy storage technology with high efficiency, good economy and long service life. In addition to the efficient storage and utilization of energy, compressed gas energy storage technology is considered ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01K25/10F02C6/00F02C6/18C25B1/04C07C9/04C07C1/12B65D88/76F24D11/00F25B23/00
CPCB65D88/76C07C1/12C25B1/04F01K25/103F02C6/00F02C6/18F24D11/002F25B23/00C07C9/04Y02A20/00Y02E60/36
Inventor 张远杨科洪慧白井艳徐建中
Owner INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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