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Device and method used for testing flame height of lithium battery combustion

A technology of combustion flame and flame height, which is applied in the field of devices for testing the combustion flame height of lithium batteries, can solve the problems of large toxic and harmful smoke, reduce visibility, and affect the direct measurement of the combustion flame height of lithium batteries, and achieves a simple test method. Effect

Inactive Publication Date: 2017-03-08
SHANGHAI FIRE RES INST OF THE MIN OF PUBLIC SECURITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the combustion process of lithium batteries, a large amount of toxic and harmful smoke will be generated, which will greatly reduce the visibility and seriously affect the direct measurement of the combustion flame height of lithium batteries.

Method used

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  • Device and method used for testing flame height of lithium battery combustion
  • Device and method used for testing flame height of lithium battery combustion

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Embodiment Construction

[0028] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0029] see figure 1 and figure 2 , a test device for testing the combustion flame height of a lithium battery according to the present invention, comprising: a test box 1, an air inlet 2, an air outlet 3, a lithium battery 4, a heater 5, an anemometer 6, a gas collecting hood 7, an exhaust Smoke pipe 8, filter 9, valve 10, air extraction pump 11, scrubbing tank 12, camera 13.

[0030] Wherein, the air inlet 2 is arranged at the bottom corner of the test box, the air outlet 3 is arranged at the top corner of the test box, and both the air inlet and the air outlet are provided with an anemometer 6 . The camera is set outside the test room, with the lens facing the lithium battery; the gas collection hood of the smoke exhaust system is set inside ...

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Abstract

The invention discloses a device and a method used for testing the flame height of lithium battery combustion. The device comprises a test box, a heating device, a camera and a smoke evacuating device. An air inlet is arranged in a corner at the bottom of the test box. An air outlet is arranged in a corner at the top of the test box. Anemometers are arranged at the air inlet and the air outlet. The camera is arranged outside a test room and a lens faces a lithium battery. A gas collecting cover of the smoke evacuating device is arranged in the test box and faces the lithium battery. During combustion, the lithium battery is arranged on the heater. After the combustion is finished, an air extracting pump is opened to evacuate smoke. A combustion video of the lithium battery is converted into an image and the image is subjected to image processing by the Matlab software. Thus, the flame height of the lithium battery combustion is obtained.

Description

technical field [0001] The invention relates to the technical field of combustion testing, in particular to a device and method for testing the combustion flame height of a lithium battery. Background technique [0002] From 2009 to 2015, the state successively issued a series of documents such as the "Notice on Carrying out the Demonstration and Promotion of Energy-Saving and New Energy Vehicle Pilot Work", and electric vehicles have become a strategic emerging industry that my country has focused on cultivating. However, during the application and promotion of electric vehicles, a series of fire accidents occurred, such as the fire accident of an electric taxi in Hangzhou in 2011, the spontaneous combustion accident of an electric bus in Shenzhen in 2015, and the fire accident of an electric vehicle charging in Norway in 2016. After investigation, it was found that most of the fires in electric vehicles are related to their power lithium batteries. Therefore, to understand...

Claims

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Application Information

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IPC IPC(8): G01B11/02
CPCG01B11/022
Inventor 张永丰张磊黄昊曹丽英李跃伟华万仁胡成
Owner SHANGHAI FIRE RES INST OF THE MIN OF PUBLIC SECURITY
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