A Large Diffusion Angle Foam Fire Extinguishing Nozzle

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 particularly 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 a uniform foam form; the structure of the foam nozzle is required to make the sprayed foam uniformly distributed, and the foam mixture cannot be atomized. However, the foam nozzle in the prior art has a small diffusion angle and serious atomization. The foam mixture is not evenly distributed when sprayed, dense in the middle, and sparse on both sides. It cannot handle foam foaming and isolate the oil pool fire in time, which affects the fire extinguishing system. The effect of. [0003] Therefore, the existing technology has defects and needs to be further improved and developed. Summary of the invention [0004] The purpose of the present invention is to provi...

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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