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Spray nozzle

A water mist sprinkler and sprinkler body technology, which is applied in fire rescue and other directions, can solve the problems of mandrel, spring, nozzle hole of sprinkler body being easily blocked by insects, sandstorm, electric leakage, etc., and achieve the effect of improving resistance to water ingress and impurity clogging.

Inactive Publication Date: 2013-05-15
浙江港龙消防机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the leakage and electric shock accidents caused by dripping water and direct-current continuous water vector of conventional water mist nozzles at the beginning and end of spraying and low water pressure; the mandrel and spring, nozzle body, and nozzle holes are easily blocked by insects and sandstorms

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0021] The water mist nozzle consists of a nozzle body (4), a nozzle (5), a mandrel (1), a spring (3), an O-ring (2), a cone filter (6), a copper gasket (7), a lock Tightly buckle (8) to form. Both sides of the cone-shaped filter are lined with copper gaskets, which are installed at the inlet of the water inlet channel of the nozzle body and fastened by a locking buckle; the O-shaped sealing ring is set in the sealing groove of the mandrel; the mandrel is pushed by the spring to move to the water inlet, Make the O-ring contact with the top surface of the abdominal cavity of the nozzle body to keep the sealing state. The mandrel sleeve is fitted with a spring in the nozzle inlet hole. Normally, under the thrust of the spring, the mandrel contacts the O-shaped sealing ring with the top surface of the abdominal cavity of the nozzle body, so that the water mist nozzle is kept in a closed and sealed state. At the beginning of spraying, because the water pressure of the pipe netwo...

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PUM

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Abstract

The invention relates to a spray nozzle. The spray nozzle is in a hexagonal prism shape; a tapered filter screen is arranged on a water inlet and compressed by a fastener, an O-shaped sealing ring is sleeved on the upper part of a mandrel, a spring is sleeved on the lower side of the mandrel, and the mandrel is assembled between a spray nozzle body and a nozzle, is pushed to open by pressure of inlet water, closed and sealed under the spring force. Water is decomposed into 300mu m-500mu m mists under work pressure, and the spray nozzle sprays water mists according to a preset atomization angle, has an effective spray distance of 5 meters and belongs to the field of firefighting. Water flowing and dripping hazards and a short effective spraying distance problem of a conventional spray nozzle during an initial spraying period and an ending period are solved. The spray nozzle has the capability preventing harmful gases, insects and dust from entering pipelines and valves; the spray nozzle consists of the mandrel, the spray nozzle body, the spring, the nozzle, the O-shaped sealing ring, a red copper gasket, the tapered filter screen and the fastener; and the spray nozzle has a wide application prospect in electric power, chemical industry, metallurgy, highway tunnels, wine cellars and the like.

Description

technical field [0001] The invention relates to a device used in the fire protection industry. The atomization and spraying is started when the inlet pressure reaches a predetermined value, and the water flow is decomposed into 300um-500um droplets and sprayed out according to the predetermined atomization angle. When the spraying is stopped, It can be closed quickly to prevent dripping water damage; the effective spray distance is up to 5m, which belongs to the field of fire extinguishing, fire control and fire prevention. Background technique [0002] The current national standard GB5135.5-2003 water mist nozzle does not have the ability to start the atomization spray at constant pressure and stop the ability to quickly close the seal; at the beginning of spraying, the water pressure at the delivery pipe and the nozzle has not yet been established. Some water mist nozzles will continue to drip water, drain the remaining water in the pipe network, and cause water damage. Su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62C31/02
Inventor 俞伯良
Owner 浙江港龙消防机械有限公司
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