RU219125U1 - REUSABLE PORTABLE FIRE EXTINGUISHING DEVICE - Google Patents

Abstract

The reusable portable fire extinguishing device refers to fire fighting technology, namely portable fire extinguishing devices and fire extinguishers. A reusable portable fire extinguishing device, consisting of a high-pressure metal cylinder with an extinguishing agent inside, an outlet flexible pipeline with a shut-off valve, characterized in that the device is additionally equipped with a sealed cover, in which a safety valve is installed to bleed excess pressure and there is a chamber in which a pyrotechnic cartridge is installed for injecting excess pressure in the cylinder, a check valve that prevents pressure from bleeding when replacing a used pyrotechnic cartridge, a shutter that includes a cartridge initiation mechanism consisting of a spring-loaded striker and a striker.

Description

The reusable portable fire extinguishing device refers to fire fighting technology, namely portable fire extinguishing devices and fire extinguishers.

A device used in fire fighting technology is known (patent for invention RU 2019216 C1). The essence of the invention: the fire extinguisher contains a knapsack tank, a hose, a supply container with a movable piston, exhaust and check valves, a jet nozzle, as well as powder pressure accumulators with means of initiation, a drain valve, a spring that returns the piston to its original position. In addition, a deflector is fixed along the axis of the nozzle on the guide, with the help of which the liquid jet is crushed and the impulse recoil force acting on the operator is reduced, and the ratio of the sectional area of the deflector blocking the jet to the area of the nozzle outlet is determined by the calculated expression, depending on the need for to some extent reduce the dynamic impact on the operator while maintaining the efficiency of fire extinguishing with a high-energy spray jet with a uniform distribution of liquid particles in the stream.

The disadvantages of the known device are the complexity of the design and the operational difficulties resulting from this during operation and maintenance, as well as the impossibility of ensuring a constant supply of the extinguishing agent.

Also known is a device related to fire fighting and agricultural equipment, which can be used to fight fires and spray plants (application for invention RU 109667 U1).

The device contains a knapsack tank connected by a hose to a hand pump having a hollow stem for fluid supply. The rod is connected to the sprinkler. The sprinkler contains a core with a conical tip. The core has radial holes for communication with the jet cavity. The tip has grooves communicated with the nozzle. The internal cavity of the jet has a conical section corresponding to the cone on the tip. The cavity of the jet is communicated through the grooves with the nozzle. The jet is connected to the core with a thread. There is a rubber ring for sealing. The liquid spray mode depends on the size of the gap between the cone and the jet section. This parameter is adjusted by screwing the jet on the core.

The disadvantage of this design is the need to use manual force for pumping when extinguishing a fire, as well as the complexity of this process.

The technical task of the proposed design is the creation of a quick-rechargeable fire extinguisher and the implementation of an automatic supply of an extinguishing agent by using a pyrotechnic cartridge to inject excess pressure into a container with an extinguishing agent.

The problem posed in the utility model is solved in a reusable portable fire extinguishing device, consisting of a metal cylinder, an extinguishing agent, a pipeline with a shut-off valve for supplying the extinguishing agent, a safety valve and a cover that provides for the installation of a pyrotechnic cartridge for injecting excess pressure in the cylinder.

The technical result of the application of the utility model is the implementation of the possibility of quick recharging of the fire extinguisher.

The proposed device is illustrated by the following figures.

In FIG. 1 shows a general view of the device: 1 - high-pressure cylinder, 2 - extinguishing agent, 3 - flexible pipeline, 4 - cover, 11 - shut-off valve.

In FIG. 2 shows a section of a cover and a shutter with a mechanism for initiating a pyrotechnic cartridge: 3 - a flexible pipeline, 5 - a pyrotechnic cartridge, 6 - a check valve, 7 - a shutter, 8 - a spring-loaded striker, 9 - a striker, 10 - a safety valve.

The device consists of a metal high-pressure cylinder 1, which contains an extinguishing agent 2, supplied from a tank through a flexible pipeline 3 with a shut-off valve 11. To seal the cylinder 1, a cover 4 is used, in which a safety valve 10 is installed to relieve excess pressure and a chamber is located, in which a pyrotechnic cartridge 5 is installed for injecting excess pressure in the cylinder 1, a check valve 6, which prevents the release of pressure when replacing the used pyrotechnic cartridge 5, a shutter 7, which includes the mechanism for initiating the pyrotechnic cartridge 5, consisting of a spring-loaded striker 8 and a striker 9.

The device works as follows. A pyrotechnic cartridge 5 is installed in the chamber on the cover 4, then the shutter 7 is screwed, after which, applying a mechanical action by hand to the drummer 9, the mechanical action is transmitted to the spring-loaded striker 8, which moves and hits the primer of the pyrotechnic cartridge 5. As a result, the combustion products rush down , increasing the pressure in front of the check valve 6 to a value exceeding the resistance of the compressed spring, the valve 6 opens, and the combustion products enter the internal cavity of the cylinder 1, where an excess pressure is created, as a result of which the extinguishing agent 2 begins to flow through the flexible pipeline 3 out to the extinguishing zone ignition.

Recharging the fire extinguisher is carried out as follows. Open cover 4, fill cylinder 1 with extinguishing agent and close cover 4. Then open shutter 7 and remove the used pyrotechnic cartridge 5, put a new pyrotechnic cartridge 5 in its place and close the shutter. The fire extinguisher is ready to go.

Claims (1)

A reusable portable fire extinguishing device, consisting of a high-pressure metal cylinder with an extinguishing agent inside, an outlet flexible pipeline with a shut-off valve, characterized in that the device is additionally equipped with a sealed cover, in which a safety valve is installed to bleed excess pressure and there is a chamber in which a pyrotechnic cartridge is installed for injecting excess pressure in the cylinder, a check valve that prevents pressure from bleeding when replacing a used pyrotechnic cartridge, a shutter that includes a cartridge initiation mechanism consisting of a spring-loaded striker and a striker.

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