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Medium and low perssure fine water mist spray nozzle having porous liquid film jet mist throwing disk

A water mist nozzle and jet technology, which is used in spray devices, spray devices, fire rescue and other directions, can solve the problems of small spray impulse, short range, insufficient spray volume, etc., to save investment, reduce water pollution, and apply wide effect

Inactive Publication Date: 2008-07-16
韩铁夫
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a film jet with better atomization degree, large atomization flow rate, large impulse, long range and large spray angle in view of the shortcomings of the existing film jet spray, such as small impulse, short range and insufficient spray volume. Medium and low pressure water mist nozzles, in order to develop water mist fire extinguishing and replace the existing water spray and water sprinkler nozzles

Method used

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  • Medium and low perssure fine water mist spray nozzle having porous liquid film jet mist throwing disk
  • Medium and low perssure fine water mist spray nozzle having porous liquid film jet mist throwing disk
  • Medium and low perssure fine water mist spray nozzle having porous liquid film jet mist throwing disk

Examples

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Effect test

Embodiment 1

[0068] see figure 1 , 2, Embodiment 1 is a fine water mist nozzle using a porous liquid film jet band annular throwing mist disc and eye-shaped hole and swirl chamber. A filter 4 is installed at the central hole inlet of the shower head seat 1. The swirl chamber 2.3 on the nozzle body 2 and the main nozzle 2.0 of the swirl chamber are arranged in the central cavity of the nozzle seat, and 2 to 4 tangential grooves or tangential holes 2.4 are arranged on the wall of the swirl chamber, and the tangential grooves or tangential holes The outer generatrix of the hole is tangent to the circumference of the big end hole of the swirl chamber. A stuffy cover 3 is provided on the top of the swirl chamber. The nozzle body 2 is screwed on the outer fine lines of the nozzle seat with an internal thread and sealed with a sealing ring 5 . On the nozzle body 2, an annular groove 2.5 facing the end plane of the nozzle seat is provided. The inlet of the annular groove 2.5 communicates with t...

Embodiment 2

[0070] see Figure 3-11 , Embodiment 2 is a fine water mist nozzle with an annular throwing disc and a central jet chamber. This example image 3 The main structure shown is basically the same as that of Embodiment 1, in image 3 The ring-shaped mist throwing disc 1.1, film jet hole 1.2, nozzle body 2, eye-shaped hole 2.1 and figure 1 Same, plus the eye slots are also the same as the figure 1 The eye-shaped hole slot 2.2 in is the same, and the same part will not be described again. The difference is the stuffy cover 3 among the embodiment 1 (referring to figure 1 ) is replaced by the central jet chamber 6 and its inner mechanism or similar mechanism in the second embodiment. The central jet hole 6.0 is coaxially opposite to the main nozzle 2.0 of the swirl chamber of the nozzle body. The present embodiment sprinkler head is provided with the dustproof cover 8 that machine sheet or metal foil etc. are made, and the dustproof cover is loosely sleeved around the sprinkler ...

Embodiment 3

[0072] see Figure 12-14 , the present embodiment is a combined atomized fine water mist nozzle with a ring-shaped mist throwing disc that can be opened and sprayed at a constant pressure. Its structure is the same as the main body of embodiment 2 image 3 The structures are basically the same, and the same parts will not be described again. The difference is that two circles of eye-shaped holes are set on the nozzle body, and the second difference is that there are 2 to 4 pre-stage tangential swirls on the top surface of the central jet chamber 9 of the combined atomized fine water mist nozzle. Groove 9.1, central jet chamber cylindrical hole built-in constant pressure spring 10, constant pressure spring 10 supports the sealing disc 11 with small tail post. When there is no pressure or the pressure is very low, the sealing disc seals the entrance of the central hole of the nozzle seat, and the nozzle does not spray. When a certain pressure is reached, the sealing disc retre...

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Abstract

A middle-and low-pressure water atomizing nozzle with multi-hole liquid-film jet atomizing tray is composed of a nozzle holder with central hole and cavity and a nozzle body on said nozzle holder. A ring of jet holes are made on the hole wall of nozzle holder and / or the external wall of the cyclone chamber in nozzle body. The semi-umbrella shaped annular curved surface and the annular flat surface or inclined surface on the external wall of nozzle holder or nozzle body constitute a notch ring. Said annular curved surface forms an atomizing tray.

Description

technical field [0001] The invention relates to a fine water mist nozzle, in particular to a fine water mist nozzle capable of using a medium-low pressure water source and capable of large impulse and long-range spraying for wide-angle spraying, which is used in fire fighting or other spraying fields. Background technique [0002] Water mist fire extinguishing is a green and environmentally friendly fire-fighting technology with a wide range of uses, and the water mist nozzle is a key component of the water mist fire extinguishing system. Existing fine water mist nozzles with good fire extinguishing spray performance are mainly atomized by high-pressure small-hole circular jets or gas-liquid two fluids. There are very few single-fluid fine water mist nozzles that can use low-pressure water sources less than 1.21MPa, and the atomization degree is poor. The range is short, the impulse is small, the spray angle is small, the protection range is small, and the performance is not...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05B1/02A62C31/02
Inventor 韩铁夫
Owner 韩铁夫
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