Large-spreading-angle foam fire-extinguishing sprayer

Abstract

The invention belongs to the technical field of fire-extinguishing devices and discloses a large-spreading-angle foam fire-extinguishing sprayer. The fire-extinguishing sprayer comprises a barrel-shaped sprayer main body; a wedged nozzle is arranged at the outlet of the sprayer main body; wedged flow guide blocks are symmetrically arranged on the inner upper side face and inner lower side face of the outlet of the wedged nozzle; the cross sections of the wedged flow guide blocks are isosceles-triangle-shaped; the central lines of the wedged flow guide blocks are overlapped with the central line of the wedged nozzle; and flow stabilization plates are symmetrically arranged on the upper side face and lower side face of the outlet end of the wedged nozzle. The sprayer can be used for accurately processing foaming and isolating large fire of an oil pool, and has a large spreading angle.

Description

technical field [0001] The invention belongs to the technical field of fire fighting equipment, and in particular relates to a foam fire extinguishing nozzle with a large diffusion angle. Background technique [0002] When the foam nozzle is working, the foam mixture is dispersed, and the dispersed foam mixture is sprayed in the form of uniform foam; the structure of the foam nozzle is required to make the sprayed foam evenly distributed, and the foam mixture cannot be atomized. However, the diffusion angle of the foam nozzle in the prior art is small, the atomization is serious, and the distribution of the foam mixture is uneven when it is sprayed. effect. [0003] Therefore, there are defects in the prior art and need to be further improved and developed. Contents of the invention [0004] The object of the present invention is to provide a foam fire extinguishing nozzle with a large diffusion angle, which can timely and accurately handle foam foaming and isolate oil p...

AI Technical Summary

Problems solved by technology

However, the diffusion angle of the foam nozzle in the prior art is small, the atomization is serious, and the distribution of the foam mixture is uneven when it is sprayed, and it is dense in the middle and sparse on both sides. It cannot deal with foam foaming and isolation of the oil pool fire in time, which affects the fire extinguishing system. effect

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