Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for achieving 34B-grade local fire extinguishing by controlling particle size of hexafluoropropane fog drops

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

Inactive Publication Date: 2013-08-14
刘连喜 +14
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for achieving 34B-grade local fire extinguishing by controlling particle size of hexafluoropropane fog drops
  • Method for achieving 34B-grade local fire extinguishing by controlling particle size of hexafluoropropane fog drops
  • Method for achieving 34B-grade local fire extinguishing by controlling particle size of hexafluoropropane fog drops

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025]In May 2012, under normal outdoor conditions, 15 times of 34B level fire extinguishing tests were carried out according to the number of nozzles, nozzles, installation height (height from oil surface to nozzle), and filling pressure. 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. A suspended hexafluoropropane fire extinguishing device (Hangzhou Fire Fighting Equipment Co., Ltd., model XQLW6 / 4) is used. The dosage of hexafluoropropane is 4kg. A standard atomizing nozzle is used. The nozzle is circular with a diameter of 21mm and the nozzle is equilateral 3 There are 3 rotating cores evenly distributed in the angular shape, the distance from the center of the rotating co...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Volumeaaaaaaaaaa
Login to View More

Abstract

The invention provides a method for achieving 34B-grade local fire extinguishing by controlling the particle sizes of hexafluoropropane fog drops. The method defines the particle size control on the hexafluoropropane fog drops as a key condition for the fire extinguishing by a hexafluoropropane local fire extinguishing system. The method provided by the invention is high in fire extinguishing success rate, good in fire extinguishing effect and wide in application range and application prospect, fills in the blank of application and research of fire extinguishing by hexafluoropropane at home and abroad, and lays a foundation for large-scale popularization and application of the hexafluoropropane for local fire extinguishing.

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 34B 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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): A62C35/02
Inventor 刘连喜董海斌高云升盛彦锋马建琴卢政强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 刘连喜