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Title:
FIRE PREVENTION AND CONTROL SYSTEM FOR LITHIUM ION BATTERY PREFABRICATED CONTAINER AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/016765
Kind Code:
A1
Abstract:
A fire prevention and control system for a lithium ion battery prefabricated container and a control method therefor. The system comprises a control assembly, an air inlet and exhaust device, and a fire extinguishing device; each battery energy storage cabinet (12) is provided with an air inlet (15), an air exhaust port (14), and a liquid nitrogen spraying device (16), and is internally provided with a lithium ion battery cluster (13); the air inlet and exhaust device comprises a nitrogen storage tank (21), an output end of the nitrogen storage tank (21) is communicated with each air inlet (15), and each air exhaust port (14) is connected to an input end of the nitrogen storage tank (21); the fire extinguishing device comprises a liquid nitrogen storage tank (23), and the liquid nitrogen storage tank (23) has an output end connected to each liquid nitrogen spraying device (16), and an input end connected to a nitrogen generator (22); the control assembly comprises a controller (41) and a plurality of detection devices (45), and each detection device (45) is correspondingly provided in the battery energy storage cabinet (12) and used for monitoring a fire condition; and the controller is connected to the liquid nitrogen storage tank (23), the liquid nitrogen spraying devices (16), the nitrogen storage tank (21), an exhaust assembly (25), and an air inlet assembly (24). The system not only performs cooling during normal operation of the lithium ion battery cluster (13), but also performs efficient fire extinguishing prevention and control on same, and the mutual conversion of nitrogen and liquid nitrogen enables the efficiency of the system to be higher.

Inventors:
ZHANG GUOWEI (CN)
LI ZHENG (CN)
SUN YINAN (CN)
LI HUAXIANG (CN)
GUO DONG (CN)
ZHANG ZHIWEI (CN)
YAN SU (CN)
HUANG JUNBIN (CN)
Application Number:
PCT/CN2020/133309
Publication Date:
January 27, 2022
Filing Date:
December 02, 2020
Export Citation:
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Assignee:
UNIV CHINA MINING (CN)
International Classes:
A62C3/16; A62C5/00; A62C31/00; A62C35/02; H01M10/0525
Foreign References:
CN111803831A2020-10-23
CN110270032A2019-09-24
CN205564903U2016-09-07
CN206134879U2017-04-26
CN108087721A2018-05-29
CN110090374A2019-08-06
CN105449307A2016-03-30
JP2008251263A2008-10-16
Attorney, Agent or Firm:
BEIJING HUAIHAI INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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