Remote aqueous film-forming foam fire extinguishing device

Abstract

The invention relates to the technical field of fire fighting equipment, in particular to a remote aqueous film-forming foam fire extinguishing device. The remote aqueous film-forming foam fire extinguishing device is characterized in that water and foam stock solution are not mixed in a foam stock solution storage tank, the concentration of the foam stock solution in the storage tank is not changed, the later foam generation effect is improved, the concentration of foam generated in the later foam spraying process is prevented from being reduced, the fire extinguishing effect of foam fire extinguishing equipment is improved, and practicability is improved; The remote aqueous film-forming foam fire extinguishing device comprises a storage tank, a first connecting pipe, a second connecting pipe, a feeding pipe, a first mounting seat, a first communicating pipe, a water inlet pipe, a proportional mixer, a support, a second communicating pipe, a liquid outlet pipe, a floating plate, a ventilation pipe and a water drainage mechanism, a cavity is formed in the storage tank, the first connecting pipe is mounted on the storage tank and communicates with the cavity, the second connecting pipe is mounted on the storage tank and communicates with the cavity, the feeding pipe is mounted on the storage tank and communicates with the cavity, the first mounting seat is mounted on the second connecting pipe, and the first communicating pipe is mounted on the first mounting seat and communicates with the cavity.

Description

technical field [0001] The invention relates to the technical field of fire fighting equipment, in particular to a remote aqueous film-forming foam fire extinguishing device. Background technique [0002] Aqueous film-forming foam fire extinguishing agent (AFFF for short) is an environmentally friendly film-forming foam fire extinguishing agent, which is mainly formulated with fluorosurfactant and foaming agent. It is a light yellow transparent liquid. Put out the fire of non-polarity or hydrocarbon fuel after mixing with water through foam tank (foam proportion mixing device) according to the ratio concentration of 3% and 6%. It can be used in combination with compatible dry powder fire extinguishing agents, and can be used with most expanded foams in the fire fighting process. During the fire extinguishing process, the water precipitated from the foam layer of the aqueous film-forming foam liquid can form a layer of water film with good sealing performance on the surface ...

AI Technical Summary

Problems solved by technology

It can be used in conjunction with a compatible dry powder fire extinguishing agent; during the use of the existing foam stock solution storage tank, by adding water to the tank, the foam stock solution in the tank is squeezed into the proportioning mixer, resulting in the foam stock solution storage tank. The concentration gradually decreases, resulting in poor bubble effect in the later stage, which affects the effect of fire extinguishing

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