Multi-functional water mist spray gun

Abstract

The invention discloses a multi-functional water mist spray gun, which can be used for spraying direct current mist, diffused mist and foamy mist. The spray gun consists of a foam spray gun and a mist spray gun, and is provided with a direct current and diffusion adjusting mechanism. The multi-functional water mist spray gun belongs to the field of fire control, and is used for solving the problems of large loss of water current, large water supply hose thickness, large water-drop diameter and incapability of spraying mist, spraying foam and extinguishing fire for ultra-high buildings existing in the conventional fire-control water spray gun. The multi-functional water mist spray gun is provided with a rotatable water inlet joint, a switch handle, a flow control valve core, a three-way converting ball valve, the mist spray gun and a foam spray gun. High-pressure water current is converted into mist drops through the three-way converting ball valve, an atomizing conical core and the mist spray gun, and is applied to remote fire extinguishment and short-range protection; a foam liquid flows through a vortex device and is rotationally foamed, inflow air of an air sucking barrel is mixed with the foam liquid flow, and the mixture is foamed through a foaming screen for spraying; the rotatable water inlet joint can revolve, so that the problems of winding and tying of water bands are solved; and a casing is used for smashing for emergency rescue and disaster relief. The multi-functional water mist spray gun has wide application prospects in the filed of metallurgy, petrochemical industry, traffic, cooking industry and the like, and particularly has unique superiority in the protection of ultrahigh buildings.

Description

technical field [0001] The invention relates to a new type of multifunctional fine water mist spray gun used in the fire protection industry, which can spray direct current fine mist, diffuse fine mist, and foam fine mist. It controls the opening and stopping of spraying, and has the function of breaking door and window glass for emergency rescue. The water inlet hose joint can be rotated 360°. It belongs to the field of fire extinguishing, fire control, emergency rescue and protection. Background technique [0002] The existing fire water nozzle has a low rated working pressure of 0.35MPa, a relatively high flow rate of 450L / min, a water droplet diameter of >2.0mm, and a nominal diameter of the coupling of DN65. [0003] The fire water gun is made of aluminum alloy, which has poor high temperature resistance, low strength and weak corrosion resistance. [0004] The existing fire-fighting water gun has low working pressure and large diameter of the water supply interface...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that conventional fire water guns do not have the function of diffusion atomization and foam spray, the water demand is large, and the water supply hose is easy to be entangled and knotted, causing the water supply to be blocked or even interrupted; when a super high-rise building fires, when the original fixed water supply of the building When the fire extinguishing facilities fail or the water is not enough, the working pump and hose of the fire truck cannot be lai

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