SU1466762A1 - Thrown fire-extinguisher for liquids - Google Patents

Abstract

The invention relates to fire fighting equipment and, in particular, to devices used to eliminate fires in tanks, and allows for an increase in fire extinguishing efficiency. The case with a flange 2 is screwed in by means of a choke 3 locking-starting device. The output 6 of the porn starter is connected to the collector 7 through the delay element 8. The collector has output channels. The mounting plates 10, made of a material with a shape memory effect, which enclose the housing 1 along a generatrix, are attached to the lower part of the housing 1. With each of the plates 10 interacts the corresponding float 11, made in the form of fire-resistant elastic sheath, communicated with the corresponding output channel 9 of the collector 7. 3 Il.

Description

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FIELD OF THE INVENTION The invention relates to fire fighting equipment, namely, devices used to eliminate fires in tanks, as well as in hard-to-reach places.

The purpose of the invention is to increase the efficiency of fire extinguishing.

FIG. 1 shows a side view of a fire extinguisher for a liquid; in fig. 2 - the same, top view; in fig. 3 - the same in the working position.

The throwing liquid fire extinguisher includes a housing 1 with a flange 2, into which a shut-off device is screwed in by means of a fitting 3. The shut-off device is made, for example, in the form of a three-way valve 4 with a tip 5 for charging a fire extinguisher. The output -6 three-way valve 4 is connected to the collector 7 through a delay element 8 installed between the collector and the three-way valve, for example a throttle washer. The collector has output channels 9 for fire extinguishing of its spring. Attached to the lower part of the housing 1 are mounting plates 10, made of a material having a shape memory effect, which enclose the housing along the pattern. Each of the plates 10 is associated with a corresponding float 11, made in the form of a fire-resistant elastic sheath 12, connected to the corresponding output channel 9 of the collector 7. Fixing plates 13 are attached to the mounting plates for more reliable mounting of the floats.

The fire extinguisher works as follows.

In the initial position, the housing 1 is loaded, for example, with a compressed inert gas, the shut-off device is closed. Floats made of fire-resistant elastic shells 12, in the folded state, are placed along the generatrix between the outer surface of the housing 1 and the fixing plates 13.

In the event of a fire, the valve is activated by the operator and the fire extinguisher is detonated.

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into the fire inside the tank. In this case, a fire extinguishing agent under pressure from the housing 1 through the shut-off device, delay element 8, collector 7 and channels 9 enters the shells 12. Delay element 8 provides the necessary delay time for the fire extinguishing agent to enter the shells 12. Under the action of temperature in the fire, the mounting plates 10 take the form, for example, linear, previously set before them in the fire extinguisher. At the same time, the shells 12 are released and, under the pressure of the extinguishing agent entering into them, increase in volume C, reducing the free volume of the reservoir. This drastically reduces the volume of the active combustion zone and the possible spread of the fire source, as well as prevents the extinguishing of the fire extinguishing agent and ensures the buoyancy of the device in the reservoir with the liquid. This facilitates the elimination of the fire in the reduced free volume of the tank with regular fire extinguishing agents and at the same time reduces the consumption of fire extinguishing agent for the elimination of the fire by 5

heat.

Claims (1)

Invention Formula  A drop-in fluid extinguisher containing a manifold with outlet channels connected to the housing by means of a shut-off device, mounting plates made of a material with a shape memory effect, attached to the lower part of the housing and enclosing it along the generatrix, and floats, each which interacts with an appropriate mounting plate, characterized in that, in order to increase the efficiency of fire extinguishing, it is equipped with a delay element installed between the starting and starting device and llektorom, and each of the floats formed as communicating with the respective outlet duct collector fireproof elastic shell. 7 7 / P FIG. 2 ten / Yu