DD299704A7 - FIRE LOESCHER - Google Patents

Abstract

The invention relates to a fire extinguisher for military facilities, especially for rocket launch containers. The aim of the invention is to ensure a constant readiness for use in a variety of cases during the entire life. The object of the invention is to provide a maintenance-free fire extinguisher in which the extinguishing agent stored without pressure and the pressurization of the valve only in use. This is achieved according to the invention in that the prechamber merging into the cylinder space and the channel leading to the standpipe via a check valve are staggered and the extinguishing agent tank is connected to the spray nozzle via a channel, an annular channel, a lantern and an outlet channel. The cylinder chamber is closed by a screw plug with throttle bore.

Description

For this 1 page drawing

Field of application of the invention

The invention relates to a fire extinguisher for military equipment, especially for rocket launch containers.

Characteristic of the known technical solutions

There are known fire extinguishing systems in which to eject the extinguishing agent gases or compressed air in pressure-resistant

Containers are kept ready.

The compressed gas can also be produced by chemical means and, as described in DD-PS 3302, while maintaining a

constant pressure in the extinguishing agent container used to dispense the extinguishing agent.

The compressed gas generated by a cartridge flows through an opening in the extinguishing agent container and pushes the extinguishing agent from the riser pipe wherein the excess gas is discharged through a valve to the outside.

The disadvantage is that leaks frequently occur in the pressure-resistant containers and the associated high-pressure fittings, the storage of the pressure-gas-generating cartridged chemical substances requires special treatment and

Ensuring the functionality over the entire service life regular replacement of the fire extinguishers are necessary.

In GB-PS 2134780 a protection system is described, especially for storage containers for explosive and combustible materials, in which a spray line installed in the container is coupled to an extinguishing agent connection equipped with an electrovalve.

The disadvantage is that in this case leaks may occur because the extinguishing agent is constantly under operating pressure.

In GP 269 540/6 a quick-opening valve is described, in which a piston valve is arranged in a housing, which is mounted in a packing shaft closes the passage of the medium. By igniting a Pyropatrone the piston is displaced, so that so that the shaft releases the flow for the medium.

The disadvantage is that by the constant pressure of the medium, in the fitting, leaks are possible, which make the functionality in question especially in long-term storage.

Object of the invention

The aim of the invention is to ensure a constant readiness for use in a variety of applications during the entire life.

Essence of the invention

Dertrfindung the object of the invention is to provide a maintenance-free fire extinguisher in which the extinguishing agent stored without pressure and the pressurization of the valve only in use.

According to the invention this is achieved in that the opening into the cylinder chamber prechamber and the check valve leading to the standpipe leading channel are arranged offset and the extinguishing agent tank is connected via a channel, an annular channel, a lantern and an outlet channel with the spray nozzle. The cylinder chamber is closed by a screw plug with throttle bore, in which a pin is guided to indicate the operational readiness

 In use, the pressure of the ignited Pyropatrone the spool is pressed into the right end position, so that the pressurized gas flows through the channel, the check valve and the standpipe in the extinguishing agent container and the extinguishing agent through the channel, the annular channel and Laverne in the through the piston shaft released outlet channel and thus in the spray can.

embodiment

The invention will be explained in more detail on an exemplary embodiment.

The accompanying drawing shows the extinguisher in longitudinal section. The fire extinguisher consists of the fitting 6 and the

Extinguishing agent container 8, which are tightly interconnected.

In the fitting 6, a piston slide 3 is movably arranged, the rod in a double PTFE

Stuffing box packing 15 with lantern 11 stores. The spray nozzle 13 is designed so that they simultaneously as a pressure screw

is provided for the stuffing box seal 15 is. The piston de? Piston slide 3 is provided with Nutnn in which

Sealing rings 19 are introduced and is guided in the cylinder space 14. The opening / closing space 14 opens into the pre-chamber 2, into which

the Pyropatrone 1 is screwed.

Offset to the prechamber 2, the cylinder chamber 14 via a channel 4 and a built-in check valve 16 with the Standpipe 5 of the extinguishing agent container 8 connected. The cylinder space 14 is penetrated by a plug 17 with bore 18

completed, in which a pin 20 is led to indicate the operational readiness.

From the extinguishing agent container 8, a channel 9 leads to the annular channel 10, via the lantern 11 and the outlet channel 12 with the Spray nozzle 13 is connected. In the case of use, the pyropatron 1 is ignited electrically. The resulting pressurized gas flows into the pre-chamber 2 and

moves the spool 3 in the right end position. The connection cylinder chamber 14-channel 4 is free and the

Gas pressure opens the check valve 16, so that the compressed gas flows through the standpipe 5 in the extinguishing agent tank 8. With the displacement of the spool 3 and its rod to the right and thus from the stuffing box 15

pressed, so that the connection ring channel 10-lantern 11-outlet channel 12 has also been opened. Due to the Brtzzeitlichen opening offset between pressure gas inlet and extinguishing agent outlet arises in the pressure vessel oin kurzzeitiger

Pressure accumulation, which ensures a safe atomization of the extinguishing agent. The extinguishing agent 7 is from the extinguishing agent tank 8 through the channel 9 in the annular channel 10, from there through the holes of the Lantern 11 is pressed into the outlet channel 12 and finally into the spray nozzle 13. The check valve 16 prevents the reflux of the compressed gas into the cylinder chamber fourteenth By guided on the spool 3 in the bore 18 pin, it is displayed whether the fire extinguisher is empty or ready. In a version with hanging extinguishing agent tank, the standpipe 5 is formed as a riser pipe; lying down Execution, the standpipe is unwound by 90 ° upwards. The arrangement of the Pyropatronenaufnahme also depends on the installation position of the Pyrofeuerlöschers and therefore can

be designed according to the locality.

Claims (2)

1. Fire extinguisher consisting of an extinguishing agent tank and a fitting in which a drivable by a pyro-piston piston valve movably disposed in a cylinder space and
whose rod is sealed by packages, characterized in that in the
The channel (4) via a check valve (16) with the standpipe (5) of the extinguishing agent container (8) and this via the channel (9), the Ring channel (10), the lantern (11) and the outlet channel (12) with the
Spray nozzle (13) is connected. 2. Fire extinguisher according to item 1, characterized in that the cylinder space (14) by a
Closing screw (17) with bore (18) is completed, in which a pin (20) is guided.