SU1540837A1 - Powder extinguisher - Google Patents

Abstract

The invention makes it possible to increase the extinguishing efficiency due to the complete production of the powder. Comprehensiveness is achieved by making the membrane as part of a sphere with a thickening wall from a smaller base to a larger one. Along the outer diameter of the larger base, the membrane has slotted grooves. In this case, the membrane faces the bottom of the vessel and forms a gap with it, and the slotted part freely adjoins the vessel walls and rests on the travel stop. From a source of compressed gas, the latter enters the membrane cavity, where the gas flow splits: a part of the gas, reflected from the bottom of the vessel, rushes into the mass of the powder, and the other part is directed through the gap under the membrane and through the slotted grooves along the walls of the vessel, detaching the powder from the walls . Due to this, mechanical membrane loosening of the powder and its uniform fluidization by two directed compressed gas flows over the entire vessel volume occur. The fluidity of the powder rises and it rushes into the siphon and then flows through the nozzles into the fire. 2 Il.

Description

The invention relates to fire fighting equipment, in particular, to powder fire extinguishers, and can be used in various industries of the national economy in extinguishing fires.

The aim of the invention is to increase the quenching efficiency due to the complete production of the powder.

FIG. 1 shows the proposed amplifier; in fig. .2 - section A-A in FIG. one.

The powder fire extinguisher has a vessel 1 for extinguishing powder, a head 2 with a nozzle 3, a siphon 4 for outputting a powder jet, a source of 5 compressed gas a tube 6 for supplying gas, a membrane 7 made as part of a sphere with a thickening wall from a smaller base to a larger one has an outer diameter of a larger base slotted

grooves 8. The membrane 7 faces with a smaller base to the bottom of the vessel 1 and forms a gap 9 with it, and the spline part freely adjoins the walls of the vessel 1 and rests on the travel stop 10.

When assembling the fire extinguisher, the membrane 7 is crushed and passed through the throat of the vessel 1. Inside the vessel, the membrane expands and occupies the working position, pressing the slit part to the vessel walls and the stop 10, which prevents it from further lowering.

The fire extinguisher works as follows.

The compressed gas from source 5 through cu 6 is supplied to the cavity of membrane 7, where the gas stream splits: a part of the gas, reflected from the bottom of the vessel 1, is thrown inside the powder massif, another

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the part is guided through the gap 9 under the membrane 7 and through the slotted grooves 8 along the walls of the vessel 1, separating the powder from the walls. Under the action of compressed gas, the wall of the membrane 7 rises the higher, the closer it is to its center, mechanically acting and destroying the array of powder resting on the wall. In vessel 1, the membrane 7 is mechanically loosened and the fluid is evenly fluidized throughout the vessel, improves powder flow, increases the efficiency of powder ejection and thereby increases the effectiveness of extinguishing, as well as simplifies the operation of the fire extinguisher.

Claims (1)

Invention Formula Powder fire extinguisher containing receptacle for fire extinguishing powder, head its two directional flows of the U with a nozzle, siphon for the output of powdered compressed gas through the entire volume of the vessel. Flows, a source of compressed gas, a tube for the honor of the powder rises, and the fluidized powder rushes into the siphon 4, smoothly flows along the walls of the vessel 1 and the spherical surface of the membrane 7 to the end face and the membrane limiter, the difference the nozzle 3) which, in order to increase the effect on the fire center. The extinguishing efficiency due to the complete production of the powder, the membrane is made as part of a sphere freely installed gas supply, means for loosening and fluidizing the powder, made in the form of a membrane with a hole in the center in a vessel, the smaller base of which is exposed to an external impact on the fire extinguisher, which is in a state of waiting for use, three, vibrations, shocks that are transmitted to the powder massif and 20 are opposed to the bottom, an elastic membrane 7 is damped to the walls of the vessel and rests on the travel stop, at which the membrane is made with a thickening wall to a larger base having splined grooves in the outer diameter and installed with a gap relative to the bottom of the vessel. J / this additional load and prevents the powder from over-compacted. The use of the proposed fire extinguisher reduces the compactibility of the powder in the vessel, improves loosening and psev25 I / adding powder to the whole vessel volume, increasing the fluidity of the powder, increasing the completeness of powder ejection and thereby increasing the extinguishing efficiency, as well as simplifying the operation of the fire extinguisher. Invention Formula with a nozzle, a siphon for discharging powder jet, a source of compressed gas, a tube for and a membrane stop, characterized in that, in order to increase the extinguishing efficiency due to the complete discharge of gas, the means for loosening and fluidizing the powder, made in the form of membrane with a hole in the center In the vessel, the smaller base of which is facing the bottom, and the larger adjoins the vessel walls and rests on the travel stop, the membrane is made with a thickening wall to a larger base having splined grooves in the outer diameter and is installed with a gap relative to the bottom of the vessel. 20 25 I / eight FIG. g