RU188240U1 - FIRE-FIGHTING SPRAY DEVICE - Google Patents

Abstract

The utility model relates to fire fighting equipment, in particular to powder fire extinguishing agents, and can be used to eliminate fire sources in rooms. A spray device of fire extinguishing equipment, including a deflector, a bell and a spray nozzle, made in the form of a glass with a cavity for supplying a fire extinguishing substance and spray windows made in front of the nozzle of the nozzle, and the bell is made in the form of a four-sided truncated pyramid, the long side is rectangular the base is arranged parallel to the horizontal line of the fire front level, the area of the spray windows of the nozzle-nozzle is performed in a proportion equal to the ratio of the lengths of the sides of the base of the truncated pyramid, the large spray windows are directed to the sides of the long sides of the base of the truncated pyramid, and the small spray windows are directed to the sides of the short sides of the base The truncated pyramid. The technical result of the utility model is to increase the width, and the supply force of the jet of fire extinguishing substance on the fire extinguishing area but. 2 ill.

Description

The utility model relates to fire fighting equipment, in particular to powder fire extinguishing media, and can be used to eliminate foci of fire in rooms.

A carbon dioxide extinguisher exhaust device is known, including a spray device containing nozzles installed in a socket opening in which a grate with conical holes is fixed (see description to USSR author's certificate No. 1319869 A62C 31/14, publ. 30.06.87).

The disadvantage of this device is the low width and power of the jet at a high flow rate of the extinguishing agent in the fire extinguishing area.

A spray device of fire extinguishing means is known, including a deflector and a spray nozzle made in the form of a glass with a cavity for supplying a fire extinguishing substance and spray windows made in the front of the nozzle body, spray windows are made in the form of at least two through grooves in the side wall and the bottom of the glass, while the deflector is equipped with a bell and made together with it and the spray nozzle in one piece (see the description of the patent of the Russian Federation No. 68327, IPC ⁵ A62C 31/05, published on November 27, 2007).

The disadvantage of this type of device is the relatively low width, strength and range of the jet with a large flow rate of the extinguishing agent in the fire extinguishing area.

The technical result is to increase the width and power of the jet of extinguishing agent in the area of extinguishing a fire.

The present technical result is achieved in a spray device of a fire extinguishing device, including a deflector, a bell and a spray nozzle, made in the form of a glass with a cavity for supplying a fire extinguishing substance and spray windows made in the front of the spray nozzle body, and the bell is made in the form of a quadrilateral truncated pyramid, the long side of the rectangular base is parallel to the horizontal line of the level of the fire front, the area of the spray windows of the nozzle-nozzle operate in a proportion equal to the ratio of the lengths of sides of the base of a truncated pyramid, large windows spray is directed to the side of long sides of the base of a truncated pyramid, and small windows spray is directed toward the short side of the base truncated pyramid.

Distinctive features are:

a bell, performed in the form of a four-sided truncated pyramid - allows you to evenly distribute the substance across the width and increase the width, range and power of the jet;

the long side of the rectangular base is placed parallel to the horizontal line of the level of the front of the fire - which allows you to increase the area of extinguishing the fire and the uniform vertical spraying rate of the substance over the area of the fire

the area of the spray windows of the spray nozzle is performed in a proportion equal to the ratio of the lengths of the sides of the base of the truncated pyramid, large spray windows are directed to the sides of the long sides of the base of the truncated pyramid, and small spray windows are directed to the sides of the short sides of the base of the truncated pyramid - this allows you to evenly distribute the substance across the width and increase the range and power of the jet, as well as reduce the turbulence of the flow in the socket.

Comparison of the proposed solution with an analogue and prototype did not allow to identify in them the features that distinguish the claimed solution, which allows us to conclude that the criterion of "novelty".

The claimed utility model is illustrated:

in FIG. 1 shows a longitudinal section through a spray device of a fire extinguishing means, FIG. 2 is a view A from FIG. one.

The spray device of the fire extinguishing means includes a deflector 1 with a bell 2, a spray nozzle 3, made in the form of a glass 3 with a cavity 4 for supplying a fire extinguishing agent. The glass 3 is equipped with spray windows small 5 and large 6, made in front of the spray nozzle. The bell 2 is made in the form of a truncated rectangular pyramid with side planes with short sides of the base 7, with side planes with long sides of the base 8.

The deflector 1 the bell 2, the spray nozzle 3 with the spray windows 5 and 6 are made in one piece in one piece.

The spray device of the fire extinguishing means operates as follows.

Fire extinguishing agent, for example, carbon dioxide from a cylinder under pressure enters the nozzle 3. Through small spray windows 5 in the form of holes, a fire extinguishing jet of carbon dioxide is ejected along the lateral planes of a truncated pyramid 7 with short sides of the socket base 2. A fire extinguishing jet is ejected through large spray windows 6 carbon dioxide along the lateral planes of the truncated pyramid 8 with the long sides of the base of the socket 2. Due to the proportionality of the areas of the spray windows 5 and 6 with the sides of the bases 7 8, the side surfaces of a truncated pyramid, the total flow of extinguishing jet of carbon dioxide will have a laminar flow with an increased power supply. In any expanding stream of a fire extinguishing jet, spiral turbulence will develop due to interference. The presence of a rectangular volume of a truncated pyramid will impede the development of turbulence while maintaining the fire extinguishing jet while maintaining the width and feed force.

The maximum effect of the spray device of the fire extinguishing means is achieved when the long side of the rectangular base of the bell 2 is installed parallel to the horizontal line of the level of the fire front due to the vertical uniform intensity of the spraying of the substance over the extinction area.

Information sources

1. Description to USSR author's certificate No. 1319869 A62C 31/14, publ. 06/30/87.

2. Description to the patent of the Russian Federation No. 68327, IPC ⁵ А62С 31/05, publ. November 27, 2007

Claims (1)

Spray device of fire extinguishing means, including a deflector, a bell and a spray nozzle, made in the form of a glass with a cavity for supplying a fire extinguishing substance and spray windows made in the front of the spray nozzle body, characterized in that the bell is made in the form of a quadrilateral truncated pyramid, the long side a rectangular base is placed parallel to the horizontal line of the level of the front of the fire, the area of the spray windows of the atomizer nozzle is performed in a proportion equal to relative lengths of sides of the base of a truncated pyramid, large windows spray is directed to the side of long sides of the base of a truncated pyramid, and small windows spray is directed toward the short side of the base truncated pyramid.

Images