Novel centrifugal fine water mist spray head

Abstract

The invention discloses a novel centrifugal fine water mist spray head comprising a base and a spray nozzle body which is arranged on the base and is provided with a spray head hole, wherein a hollow cylindrical inner cavity is arranged inside the spray nozzle body; a conical surface is arranged at the top of the inner cavity; the spray head hole is arranged at the vertex of the conical surface; an atomizing core consisting of a core seat and a core body is arranged in the inner cavity; the core seat is in a runway shape and is in threaded connection with the inner cavity; the core body is arranged on the core seat and is cylindrical; a blind hole is arranged at the top of the core body; a first conical surface and at least two diversion trenches are arranged on the top surface of the core body along the periphery of the blind hole; the first conical surface is matched with the side wall of the conical surface of the inner cavity; the diversion trenches are arranged along the periphery of the blind hole in a staggered manner; one end of each diversion trench is communicated with the blind hole; and the other end of each diversion trench is communicated with the inner cavity. The invention has the advantages that: high-pressure water current can rotate in the atomizing core at higher speed; and the novel centrifugal fine water mist spray head is easier to thin the fine water mist, has better immersing effect, consumes less water and can use higher-grade water.

Description

technical field [0001] The invention relates to a nozzle used in a fire extinguishing system, in particular to a fine water mist nozzle. Background technique [0002] The water mist fire extinguishing system is a new type of automatic fire extinguishing system developed in recent years. It solves the protection problems of the fire hazard places of flammable liquids and the fire hazard places of cables and electrical appliances. The fire extinguishing effect of this nozzle is remarkable, the water loss after fire extinguishing is smaller than that of conventional nozzles, the structure is simple, and the equipment cost is lower than that of gas and foam fire extinguishing systems, and can be widely used in hydraulic stations, lubricating oil depots, turbine oil depots, Oil-immersed power transformers, diesel generator rooms, boiler rooms and other flammable liquid fire hazard places, as well as electrical fire hazard places such as cable tunnels, large cable rooms, computer...

AI Technical Summary

Problems solved by technology

The rotary nozzle includes a base and a nozzle body connected to each other. The high-pressure water enters from the base, rotates in the nozzle, enhances its turbulence intensity, and then sprays out from the small nozzle holes on the nozzle body to achieve the atomization effect. The water pressure is usually not high, the atomization effect is not good, and the water consumption is large; the collision nozzle includes a nozzle with a firing pin inside, and the water flow in the nozzle is crushed by collision to form an atomization effect, but this method will cause The wear and tear of the equipment, the water mist generated is unevenly distributed, the diffusion is not sufficient, and the atomization effect is limited

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