CN2624972Y

CN2624972Y - Percussion type water-mist spray nozzle

Info

Publication number: CN2624972Y
Application number: CN 02258972
Authority: CN
Inventors: 张瑞虹
Original assignee: Xian Xinzhu Fire and Rescue Equipment Co Ltd
Current assignee: Xian Xinzhu Fire and Rescue Equipment Co Ltd
Priority date: 2002-11-26
Filing date: 2002-11-26
Publication date: 2004-07-14
Anticipated expiration: 2012-11-26

Abstract

The utility model belongs to a fire safety technology field, which relates to an impact water mist nozzle for fire fighting. The utility model comprises a nozzle body (1) and symmetrical holes (2) processed directly on the nozzle body (1), and is characterized in that: the nozzle body (1) is punched directly, and angles between the symmetrical holes (2) are between 40 degree and 70 degree, which makes the current flows through the holes necessary for impacting and not flows through any links where pressure loss may increased. When punching, the diameter of the orifice on the nozzle body is reduced, which makes the extinguishing agent of the nozzle produce higher speed under less pressure; narrower water particle is produced through the impact of water columns, which is water mist, to put out the fires of A, B and C.

Description

The impacting type fine mist spray head

The utility model belongs to the fire prevention field, relates to the impacting type fine mist spray head that a kind of fire-fighting fire extinguishing is used.

The technology that produces the water particulate with the bump principle is employed very early, and as the impacting type shower nozzle in water spray, the water sprinkling fire-distinguishing system, they are that water column is directly impinged upon on the dish that splashes that is provided with under the shower nozzle, by the bump of water with the dish that splashes, produce the water particulate.Make the water particulate that produces in this way, diameter is very big, and it is limited on the scope that fights a fire, and some occasion can not be used, and water consumption is also bigger, not only wastes water simultaneously but also can cause secondary pollution.

At present, it is the fine mist spray head that adopts the design of centrifugal atomizing formula principle that the device that produces thin water smoke also has a kind of, adopts the shower nozzle of this principle design, because water is to rely on to rotate at a high speed to produce water smoke, therefore the operating pressure of device is bigger, and the kinetic energy rejection of water is also bigger.Adopt the fine mist spray head of centrifugal atomizing formula principle design structurally need design guiding gutter so that make the water generates rotation, so structural design is complicated, processing link is more.

The purpose of this utility model is that a kind of improved impacting type fine mist spray head will be provided, and it can overcome the deficiency of above-mentioned technology effectively.

The purpose of this utility model is achieved in that at sprayer body (1) and goes up directly enforcement punching, makes current except that passing through the necessary pore of bump, without the link of any increase crushing; During punching, reduce the pore orifice diameter, make extinguishing chemical under less pressure, produce higher speed,, produce thinner water particulate, promptly thin water smoke by bump.

Compare with conventional art, the utility model has following advantage:

1, compare with conventional art, the thin water smoke water smoke diameter that this device produces is little, and water consumption is few, has enlarged than conventional art on the scope of fighting a fire, and can effectively be applied in A, B, C class fire, and traditional impacting type shower nozzle can not put out the category-B combustible liquid fire;

2, because this device need only stamped a pair of or one group of i.e. pore more than three on the sprayer body, so this apparatus structure is simple especially, easy to process, the pressure loss of device is little, operating pressure is little, has overcome former centrifugal spraying nozzle structure complexity, the shortcoming that the hydrodynamic(al) loss of energy is big.

The concrete structure of utility model is provided by following embodiment and accompanying drawing thereof.

Accompanying drawing is the schematic diagram of the impacting type fine mist spray head that provides according to the utility model

Below in conjunction with the working condition of description of drawings according to the concrete device that the utility model proposes.

(1) is sprayer body among the figure, and (2) are the symmetrical pore of processing on sprayer body (1).The profile of sprayer body (1) can be processed into various symmetric shapes according to the needs of device, and the processing of symmetrical pore (2) should be the center with the center of sprayer body (1), and symmetry is processed into a pair of or one group of i.e. symmetrical pore more than three.During shower nozzle work, the extinguishing chemical that water (pure water or interior additivated water) or gas mix with water enters sprayer body (1) and goes up a pair of or one group of i.e. symmetrical pore more than three, under certain operating pressure, water column by each hole clashes into mutually and produces thin water smoke (the water particle diameter 99% of generation is less than 400 μ m), with the thin water smoke of this class all kinds of fire of can putting out a fire to save life and property.Angle between the symmetry pore is between 40 °～70 °.

Claims

1, a kind of impacting type fine mist spray head is made up of sprayer body (1) and symmetrical pore (2), is primarily characterized in that this shower nozzle directly stamps symmetrical pore (2) on sprayer body (1).

2, impacting type fine mist spray head according to claim 1 is characterized in that symmetrical pore (2) can be a pair of or one group promptly more than three.

3, impacting type fine mist spray head according to claim 1 is characterized in that angle between each symmetrical pore (2) is between 40 °～70 °.