SU1443886A1 - Fire-fighting installation - Google Patents

Abstract

The invention relates to fire fighting equipment and makes it possible to increase the reliability of the installation and increase the jet delivery range. The installation includes a tank 1, a pipe 2 for supplying water, systems 3 and 4 for supplying a combustible mixture and evacuating gases, respectively, an ignition device 5 and a pipe 6 with a movable valve 7 for draining water. The installation contains an additional tank 8, made in the form of a body of rotation, and a pipeline 9 connected to it. In addition, the installation has nozzles 10 and additional controls 12 and 13. 2 3. Clause files, 4 ill.

Description

Mixture

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The invention relates to fire fighting equipment and is intended to supply a fire extinguishing agent to a fire zone.

The aim of the invention is to increase the reliability of the installation.

FIG. 1 schematically shows the fire protection installation; in fig. 2 - protective protrusion of the movable valve (callout I); in fig. 3 - rib of the locking organ; in fig. 4 - installation of the ring in the pipe (callout II).

The installation consists of a tank 1 for water and a combustible mixture, a nozzle 2 for supplying water, a system 3 for supplying a combustible mixture and a gas outlet 4, an ignition device 5 and a nozzle 6 with a movable valve 7 for draining water. In the upper part of the tank 1 there is an additional tank 8 for the combustible mixture, made in the form of a body of rotation. The pipe 9 is connected to an additional tank 8. The valve 7 has a housing 10 connected to the nozzle 11, and control bodies 12 and 13 connected hydraulically to the cavity 14. A protective lip 15 is provided on the side of the inlet fluid flow, and the nozzles 11 are fitted with The nozzle is concentric with the ring 16. On the pipe 9 there is a throttling valve 17. The ribs 18 of the locking member 7 are located in its flow part. The combustible mixture supply system 3 is connected to the nozzle 19 of the tank 1 and has a check valve 20 and a shut-off member 21. The shut-off member 22 is installed on the nozzle 2 for supplying water, and there is a shut-off member 23 on the gas outlet 4 combustible mixture.

The installation works as follows.

Opening the closure body 22 through the nozzle 2 fills the tank 1 to a predetermined level A, while the closure body 23 is open. After the tank 1 is filled with water, the locking bodies 22 and 23 are closed. Then, opening the shut-off element 21, the combustible mixture is supplied to the additional tank 8 and the cavity 24 of the tank 1 to a predetermined pressure and using the ignition device 5, which is switched on continuously for the time of the unit operation, ignites the combustible mixture in the additional tank 8. In this case the fire jet from the additional tank 8 is ejected into the cavity 24 of the tank 1, the combustible mixture in it is ignited, which instantly burns out due to the jet ignition in the explosive mode, and in the cavity 24 a high-pressure zone of burnt gases is formed partially maintained by the arrival of new portions of the combustible mixture and their combustion during the displacement cycle.

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At the same time, when supplying the combustible mixture, the control body 12 is opened, and the control body 13 is closed, the compressed air is vented from the cavity 14, and the movable valve 7 is moved to the extreme position by the flow of water. The water from the tank 1 is ejected from the nozzle 11 under the action of high pressure of the burnt gases in the cavity 24.

Next, open the stop valve 22 to supply water to the container 1 and the cycle of operation of the installation is repeated.

At the end of the work, the shut-off body 21 for supplying the combustible mixture is closed, the ignition device 5 is turned off, the shut-off body 23 is opened to release the burning gases and the control body 12 connecting the cavity 14 to the atmosphere is closed, the control body 13 is opened by supplying compressed air to valve 14 14 to close it, while the movable valve 7 is moved to the left end position. The supply of combustible mixture to the system 3 is stopped, the water supply to the shut-off organ 22 is shut off, the ignition device 5 is de-energized, and the installation is switched to standby mode.

Thus, the reliability of the proposed installation is enhanced by the stable ignition of the combustible mixture, which contributes to the effective extinguishing of fires.

Claims (3)

1. An anti-fire installation containing a tank for water and a combustible mixture, a water inlet, a combustible mixture and gas exhaust system installed in the upper part of the tank, a pilot device and a water outlet with a movable valve, characterized in that increase the reliability of operation, it is equipped with an additional tank located in the upper part of the tank and connected to it, made in the form of a body of rotation, and the ignition device is installed in an additional tank, while the additional tank is Nena additional conduit to the fuel mixture feed system. 2. Installation under item 1, characterized in that it has controls for a movable valve, and in the valve there is a cavity that is hydraulically connected to the controls. 3. Installation on PP. 1 and 2, characterized in that, in order to increase the jet delivery range, it is provided with a ring concentrically mounted in the water discharge pipe. 6-5 Fig.z w FIG.