Air-foam fire extinguisher

A technology of air foam and foam fire extinguishing agent, which is applied in fire rescue and other directions, can solve the problems of casualties and property losses, the spraying distance is not far enough, and affects the efficiency of fire extinguishing, so as to reduce casualties and property losses, small foam, The effect of high fire extinguishing efficiency

Active Publication Date: 2009-03-11
QINGDAO LOUSHAN FIRE FIGHTING EQUIP FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The so-called air foam gun does not spray far enough when in use. At the fire scene, due to the high temperature, it is difficult for firefighters to approach the scene that shou

Method used

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  • Air-foam fire extinguisher
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  • Air-foam fire extinguisher

Examples

Experimental program
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Effect test

Embodiment 1

[0038] The "Dragon Hail" brand medium multiple ratio mixed foam generator produced by Qingdao Loushan Fire Fighting Equipment Factory in 2008, the pipe tooth joint buckle 1, double-ended external connection 2, double-ended wire connection 4, concentrator 5, liquid suction chamber 6 and The dispersion baffle 7 is all made of copper, the nozzle 9 and the suction joint 10 are made of copper, and the foaming cylinder 11 is made of stainless steel.

[0039] Model: PHZ-II

[0040] Working pressure range: 0.3-0.7Mpa,

[0041] Spray distance: ≤5.5M

[0042] Type of foam fire extinguishing agent: YEZ6%-HS type environment-friendly medium multiple foam fire extinguishing agent suitable for seawater or fresh water produced by Xinghua Suolong Fire Chemical Co., Ltd., Xinghua City, Jiangsu Province,

[0043] Foaming multiple: ≥50,

[0044] Flow rate: 5 liters / second.

[0045] After testing, using the same foam agent type, under the same working pressure, the spraying distance reaches m...

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Abstract

The invention discloses an air-foam fire extinguisher, comprising a double-head external connector (2), a liquid outlet control valve (3), a double-head joint (4), a collector (5), a liquid sucking chamber (6), a distributing baffle (7), a copper sleeve (8), a nozzle (9) and a foaming cylinder (11). A screen mesh (114) is fixed on the part of the circular cylinder (111) of foaming cylinder with a maximum inner diameter; the inner part of the nozzle (9) takes a shape of funnel, the outlet thereof faces the foaming cylinder (11) and the inlet thereof is embedded in the liquid sucking chamber (6) matching with the copper sleeve (8) and the distributing baffle (7); and the inner aperture shape of the cooper sleeve (8) is matched with the shape of the top of the distributing baffle. The outside of the liquid sucking chamber (6) is provided with a circular hole communicated with the inner part of the liquid sucking chamber. The fire extinguisher increases the flow rate greatly, the sprayed foam can reach father distance than the existing air foam nozzle, and the generated foam has better flame retardance with higher fire extinguishing efficiency. The fire extinguisher can further reduce injury and death of people and property loss, minimize the harm to fire personnel.

Description

technical field [0001] The invention relates to a portable fire extinguisher, in particular to an improvement in the structure of a backpack type air foam fire extinguisher. Background technique [0002] One of the methods for extinguishing fires in underground tunnels, coal mines, airports, underground oil depots, garages, ships, warships and limited spaces is to use an air foam fire extinguisher. The foam sprayed by this fire extinguishing tool is suitable for covering a large area of ​​water-insoluble flammable and combustible liquid. The so-called air foam fire extinguisher is a foam fire extinguishing agent mixed with water and air to produce foam, which covers the surface of the burning non-water-soluble flammable, combustible and dispersible liquid, so that it is isolated from the air containing oxygen that can support combustion, thus To extinguish the burning of non-water-miscible flammable, combustible and dispersible liquids. Said foam fire extinguishing agent h...

Claims

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Application Information

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IPC IPC(8): A62C15/00A62C17/00
Inventor 刘欣传纪玉环王铁林彭勤建杨学超江志信陈浩沈红伟程永军石新强纪明琇王萍邵尚建苏艳青王芳
Owner QINGDAO LOUSHAN FIRE FIGHTING EQUIP FACTORY
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