RU1803157C - Device for remote fighting of fire - Google Patents

Abstract

Usage: in fire fighting equipment for extinguishing fires in hard-to-reach places. The purpose of the invention is to increase operational capabilities. SUMMARY OF THE INVENTION: the device consists of a source, a sealed chamber, a cassette with a pipe and a cassette with a hose, an aqueous solution of a foaming agent, a pressure valve, a spray, flexible connections and a grid. Cassettes are connected to the camera via a quick-detachable connection. The end of the pipeline is turned inside out and secured with a clamp on the outlet pipe of the chamber to form an end. The end of the pipeline is connected by a flexible connection to the spray gun, which together with the valve is located at the end of the hose, and the end of the hose is connected to the foaming agent water supply system. The valve consists of a piston with a spring located on its stem. When an aqueous solution of the blowing agent is applied to the mesh, foam is formed. The pipeline is arranged in layers in the form of a coil in a cassette. The hose is placed in the cartridge in the form of a coil I with the possibility of movement in one plane in the direction of the pipeline. 5 ill. eat C

Description

The invention relates to fire fighting equipment and can be used to extinguish fires in hard-to-reach places of public utilities, for example: in deadlock workings of coal mines, in ship holds, in chemical and oil refineries, etc.

The aim of the invention is to improve operational capabilities by increasing the pipeline laying distance.

. In FIG. 1 shows a General view of the device; Fig. 2 - assembly A in Fig. 1 in Fig. 3 - the moment of movement of the hose; Fig. 4 shows the moment of foam production; Fig. 5 is a pressure valve with flexible clips.

A device for remote fire extinguishing consists of a source of pneumatic energy 1, for example, a local ventilation fan, a sealed chamber 2, for example, made of sheet iron or flexible airtight material, to which cassettes 3 with ventilation duct 4 and cassette 5 are connected, for example, made of an elastic material in the form of a high-pressure hose used in hydraulic fasteners used in the cleaning faces of coal mines, an foaming solution system 7 rotary valve, pressure valve 8, atomizer 9, flexible connections 10 and 1 T mesh, cassettes 3 and 5 are connected to chamber 2 by means of a quick-disconnect co00 O С)

with

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unity, for example bolted. The end 12 of the ventilation pipe 4 is turned inside out and secured, for example, with a quick-release clamp 14 on the outlet pipe 13 of the chamber 2 with the formation of the end face 15. End

16 of the conduit 4 by flexible connections 10 is connected. To the atomizer 9, which together with the pressure valve 8 is located at the end

17 of the hose 6, and the end 18 of the hose 6 is connected to the system 7. supply of an aqueous solution of a foaming agent. The pressure valve 8, for example, consists of a piston 19, on the stem of which a spring 20 is located. When an aqueous solution of a foaming agent is supplied

. foam 21 forms on the net. Pipeline 4

located in layers in the form of a coil in the cartridge 3. The hose 6 is placed in the cartridge 5 in the form of a coil. with the possibility of movement in the cartridge in the same plane in the direction of the pipe 4. The pressure valve 8 for installation in the axis of the pipe 4 is equipped with flexible clips 22 fixed along the perimeter inside the pipeline 4. The cassette 5 is, for example, made of plastic or lightweight metal (aluminum) to move the hose 6 in the cassette 5 in one plane.

The device operates as follows,

At a safe distance from the burning site, located in an inaccessible place, for example, in a dead-end mine, a pneumatic energy source 1 is installed, to which a sealed chamber 2 is connected. A cassette 3c is connected to the sealed chamber 2 by a pipe 4, the end of which 12 extends through the outlet pipe 13 and is fixed to the latter with a clamp 14, towards the end 16

. of the pipe 4 in which the mesh 11 is located, flexible connections 10 are connected, after which a cassette 5 with a hose 6 is connected to the chamber 2. Then, an aqueous foaming solution supply system 7 is connected to the end 18 of the hose. When the pneumatic energy source 1 is turned on, the air flow is directed to the chamber 2, passes through the outlet pipe 13 and acts on the end face 15 of the pipeline 4. Under the action of excessive pressure applied to the surface of the end face 15, a force arises directed towards the fire source (Fig. not shown). Under the influence of this force, the pipe 4 at the end 15 turns inside out, is removed from the cassette 3 and laid to the center of the fire. After laying the pipeline 4 at a distance equal to half the length from the installation site of the device to be installed to the fire, the hose 6 begins to move, which is flexible

10 connected to the end of the pipeline 4. Simultaneously with the beginning of the movement of the hose 6, the system 7 for supplying an aqueous solution of a foaming agent and

the overpressure cure is directed through a hose 6 to a pressure valve 8. Under the influence of excess pressure of the foaming agent solution applied to the end surface

0 piston 19, there is a force in the direction of movement of the pipe 4. This force tends to move the piston 19, however, this is counteracted by the spring 20, designed for a certain excess

5 pressure. At the same time, due to the placement of the hose 6 in the form of a coil and due to the fact that the hose is placed in the cartridge with the possibility of movement in the cartridge in one plane in the direction of the pipeline.

0, it was possible to use the elastic force arising when high pressure water was applied to the hose 6 of the foaming agent for the hose 6, because the hose 6 was pressurized, as if

5 the spring is compressed; The use of this effect for laying the hose 6 is only possible if the condition is created that ensures the movement of the hose 6 in the direction of the pipe 4. This is achieved by the fact that the movement of the hose 6 in the direction of the water supply system 7 of the foaming agent is limited to the bottom of the cartridge 5, and the side walls cassettes 5 exclude it

5 (of the hose) moving in their direction, then the hose 6, under the action of the above-mentioned force, moves in the direction of the pipe 4. In turn, the presence of the sign in the claimed set of signs — the cassette with the hose is installed along the axis of the outlet pipe, made it possible to orient the forces moving pipeline 4 and hose 6 in one direction.

After laying pipe 4 at a given length of mesh 11. This will be outside the end 16 of pipe 4, with the hose 6 completely running inside pipe 4 to its entire length. Simultaneously with the end of the pipeline 4 and hose

0 6 increase the overpressure of the aqueous blowing agent solution by increasing the pressure developed by the blowing agent supply system 7. As a result, the spring 20 is compressed and the piston 19 moves towards the nozzle 9 by a certain distance sufficient for the foaming agent solution to pass, and the latter enters the nozzle 9. Under the influence of excessive pressure, the aqueous solution of the foaming agent from the nozzle 9 is last sent to the mesh 11. On the grid 11, under the influence of the air flow supplied by the pneumatic energy source 1 through the pipe 4, foam 21 is generated, which is supplied to the fire site and extinguished. In this case, the flow rate of the foaming solution in the claimed technical solution is much less in comparison with the prototype device, since only a certain amount of this solution, necessary for generating foam 21, is supplied through the hose 6. Moreover, the amount of this solution is significantly less than if it was supplied by pipe 4, the cross section of which is much larger than the cross section of the hose. 6.

To increase the efficiency of generating foam 21 on the grid 11, the pressure valve 8 is fixed on the axis of the pipe 1. This allowed us to eliminate the influence of deformations of the final section of the pipe 4 and the mass of the end of the valve 6 on the location of the atomizer 9. This ensures uniform washing of the foam with an aqueous solution the surface of the mesh 4, thereby increasing the efficiency of the formation of foam 21 onto the mesh 11.

The advantage of the claimed device is the increase in operational

opportunities by increasing the distance of laying the pipeline and hose, as well as the possibility of ventilating the output longer than when using the prototype device.

Claims (1)

SUMMARY OF THE INVENTION A device for remote fire extinguishing, comprising a pressure valve, a pneumatic energy source connected to an airtight chamber, to which cassettes are connected arranged in the form of a hose coil and a ventilation pipe, one end of which is secured along the {5 meter of the chamber outlet pipe, and free equipped with a net and connected around the perimeter by flexible connections to the end of the hose on which the sprayer is mounted, and the opposite end of the hose is connected to the water solution supply system a foaming agent, characterized in that, in order to improve operational capabilities by increasing the distance of laying the pipeline, a pressure valve is installed between the sprayer and the end of the hose connected to the supply system of the aqueous solution of the foaming agent, mounted on the muffled end of the cartridge with the possibility of elastic interaction with him, and the cartridge is installed along the axis of the outlet pipe.