Device and method for testing fire extinguishing and cooling efficiency of lithium battery fire extinguishing agent in limited space

By designing an experimental device to test the fire extinguishing and cooling efficiency of lithium battery fire extinguishing agents in confined spaces, the difficult problem of evaluating the fire extinguishing effectiveness and cooling effect of fire extinguishing agents was solved, efficient fire extinguishing and cooling of lithium battery fires was achieved, and the research and development of fire extinguishing agents was promoted.

CN120629491APending Publication Date: 2025-09-12UNIV OF SCI & TECH OF CHINA
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Patent Information

Application Number
CN202510852790.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-24
Publication Date
2025-09-12

AI Technical Summary

Technical Problem

Existing technologies make it difficult to effectively evaluate the fire extinguishing efficiency and cooling effect of fire extinguishing agents on lithium battery fires, resulting in slow progress in the research and development of lithium battery fire extinguishing agents.

Method used

An experimental device for testing the fire extinguishing and cooling efficiency of lithium battery fire extinguishing agents in confined spaces was designed. It included a fire extinguishing bottle, a cooling bottle, a heating device, a smoke detector, a temperature acquisition device, a pressure sensor, and a data acquisition system. The fire extinguishing and cooling performance of the fire extinguishing agent was evaluated through experimental methods.

Benefits of technology

It has achieved real-time measurement and evaluation of fire extinguishing agents in confined spaces, screened out the optimal fire extinguishing agent, met the needs of efficient fire extinguishing and cooling of lithium battery fires, and promoted the research and development of fire extinguishing agents.

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Abstract

The invention discloses an experimental device and an experimental method for testing fire extinguishing and cooling efficiency of a lithium battery fire extinguishing agent in a limited space in the field of fire extinguishing agent performance research. The experimental device comprises a conveying pipeline, a fire extinguishing bottle, a cooling bottle, a test box, a heating device, a smoke detector, a fire alarm controller, a temperature acquisition device, a pressure sensor, a camera system and a data acquisition system. The data acquisition system controls the fire alarm controller to close the fire extinguishing bottle and starts the cooling bottle to spray a corresponding fire extinguishing agent to the lithium battery after the fire extinguishing bottle sprays and when the conveying pressure is zero, the fire extinguishing time used for fire extinguishing is calculated, and the surface temperature of the lithium battery after the cooling bottle sprays and when the conveying pressure is zero is also acquired. The experimental device can be used for exploring the fire extinguishing effect and the cooling effect of the fire extinguishing agent respectively, experimental support is provided for evaluating the lithium battery fire extinguishing efficiency of the fire extinguishing agent in a limited space, and therefore the fire extinguishing agent capable of meeting the efficient fire extinguishing and cooling requirements of lithium battery fire disasters can be researched and developed early.
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