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The method of local fire extinguishing by controlling the droplet size of hexafluoropropane to reach 8b level

A technology of hexafluoropropane and droplet size, which is applied in fire rescue and other fields, and achieves the effects of broad application prospects, high success rate of fire extinguishing, and wide application range

Inactive Publication Date: 2015-10-28
高云升 +14
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It can be seen from the above that there is no standard or specification for hexafluoropropane, and it is urgent to fill this gap to ensure the reasonable application of the system and better performance of fire extinguishing

Method used

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  • The method of local fire extinguishing by controlling the droplet size of hexafluoropropane to reach 8b level
  • The method of local fire extinguishing by controlling the droplet size of hexafluoropropane to reach 8b level
  • The method of local fire extinguishing by controlling the droplet size of hexafluoropropane to reach 8b level

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Embodiment Construction

[0025]In May 2012, under normal outdoor conditions, according to different nozzle numbers, nozzle numbers, installation heights (height from oil surface to nozzles), and filling pressure, 8B level fire extinguishing tests were carried out 15 times, and the test conditions all met GB4351.1-2005 And the standard of Class B fire test and local application fire extinguishing test in GA602-2006, that is, the wind speed is not greater than 3m / s, there is no bad weather such as rain, snow or hail, the ambient temperature is -40°C-55°C, and the relative humidity is 45%-75%, atmospheric pressure 86KPa-106KPa. Use a suspended hexafluoropropane fire extinguishing device (Hangzhou Fire Fighting Equipment Co., Ltd., model XQLW1 / 0.5), the amount of hexafluoropropane is 0.5kg, and a standard atomizing nozzle is used. The nozzle is circular, with a diameter of 21mm, and the nozzle is equilateral There are 3 rotating cores evenly distributed in a triangle shape, the distance from the center of...

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Abstract

The invention provides a method for achieving 8B-level local fire extinguishment by controlling the particle size of hexafluoropropane fog drops. Controlling the particle size of the hexafluoropropane fog drops is the key condition for extinguishing fire of a hexafluoropropane local fire-extinguishing system. The method is high in fire-extinguishing success rate, good in fire-extinguishing effect, and wide in application range and application prospect, fills up the application and research blank of hexafluoropropane fire extinguishment at home and abroad, and lays the foundation in largely popularizing and using hexafluoropropane for carrying out local fire extinguishment.

Description

technical field [0001] The invention belongs to the technical field of fire protection, in particular to a method for local fire extinguishing by controlling the droplet size of hexafluoropropane to reach 8B level. Background technique [0002] At present, except for the carbon dioxide system, other known gas fire extinguishing systems can only be applied in the way of total flooding, and the research work on finding a gas system that can be used as a local application like the carbon dioxide fire extinguishing system has not yet been systematically carried out. [0003] Industrial developed countries have an earlier history of applying gas fire extinguishing systems. Carbon dioxide fire extinguishing systems began to be used in the world in the 1920s, and halon fire extinguishing systems began to be used in the 1960s. The fire extinguishing agents used in early gas fire extinguishing systems in my country were mainly carbon tetrachloride and carbon dioxide. Since 1964, my ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62C31/02
Inventor 高云升刘连喜卢政强盛彦锋马建琴董海斌严洪周军冯松厉华根黄胜利王晓宇吴小松姚建军严孝忠
Owner 高云升