Title:
ENERGY STORAGE DEVICE AND METHOD BASED ON CARBON DIOXIDE GAS-LIQUID PHASE CHANGE
Document Type and Number:
WIPO Patent Application WO/2022/166387
Kind Code:
A1
Abstract:
An energy storage device and method based on carbon dioxide gas-liquid phase change. The energy storage device based on carbon dioxide gas-liquid phase change comprises: a gas storage (100); a liquid storage tank (200); an energy storage assembly (300), the energy storage assembly (300) being arranged between the gas storage (100) and the liquid storage tank (200), and carbon dioxide being changed from a gas state to a liquid state through the energy storage assembly (300); an energy release assembly (400), the energy release assembly (400) being arranged between the gas storage (100) and the liquid storage tank (200), and the carbon dioxide being changed from the liquid state to the gas state through the energy release assembly (400); a heat exchange assembly (500), the energy storage assembly (300) and the energy release assembly (400) being both connected to the heat exchange assembly (500), and the heat exchange assembly (500) being capable of transferring some of the energy generated in the energy storage assembly (300) to the energy release assembly (400); and a heat recovery assembly, at least one of energy released when the carbon dioxide is changed from the gas state to the liquid state, energy released when the carbon dioxide is cooled before entering the gas storage (100), and energy released when a heat exchange medium is cooled being recovered by the heat recovery assembly and used for evaporation of the carbon dioxide. The device can reduce energy waste in storage and release processes and improve the energy utilization rate.
Inventors:
XIE YONGHUI (CN)
WANG QIN (CN)
SUN LEI (CN)
WANG YUQI (CN)
ZHANG DI (CN)
GUO YONGLIANG (CN)
WANG XIAOYONG (CN)
YANG FENG (CN)
WANG QIN (CN)
SUN LEI (CN)
WANG YUQI (CN)
ZHANG DI (CN)
GUO YONGLIANG (CN)
WANG XIAOYONG (CN)
YANG FENG (CN)
Application Number:
PCT/CN2021/136391
Publication Date:
August 11, 2022
Filing Date:
December 08, 2021
Export Citation:
Assignee:
EXA ENERGY TECH SHENZHEN CO LTD (CN)
International Classes:
F28D20/02; F01K25/00; F01K25/10; F24S20/00; F24S20/40; F25B9/00; F25B39/00; F25B41/00; F25B41/31; F28D20/00
Domestic Patent References:
| WO2015154894A1 | 2015-10-15 |
Foreign References:
| CN112985145A | 2021-06-18 | |||
| CN112985144A | 2021-06-18 | |||
| CN112985142A | 2021-06-18 | |||
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| CN112880451A | 2021-06-01 | |||
| CN104533556A | 2015-04-22 | |||
| CN111749743A | 2020-10-09 | |||
| CN109630220A | 2019-04-16 | |||
| CN206256940U | 2017-06-16 | |||
| CN103452612A | 2013-12-18 | |||
| CN110374838A | 2019-10-25 | |||
| CN109826682A | 2019-05-31 | |||
| CN108562081A | 2018-09-21 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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