RU2478437C1 - Gas-water fire-extinguishing system of kochetov - Google Patents

Abstract

FIELD: fire-prevention facilities.

SUBSTANCE: invention relates to fire fighting equipment. Gas-water fire-extinguishing system comprises a network of main and distribution pipelines with sprayers. The main and each of the distribution pipelines consists of pipelines supplying water and gas. Water supply to the main pipeline is carried out from the pneumatic tank through the pipeline. The gas is supplied through the pipeline from gas distribution station, which comprises cylinders with compressed gas and two gears. One of the gears regulates the gas pressure in the main pipeline, and the other is connected by the pipeline to the cover of the pneumatic tank to create water pressure in the main pipeline. To start the system the automatic microprocessor plant is provided, which is installed in the gas-supply line between the pipeline. The pipeline connects the cylinders with compressed gas. In front of the gears an automatic microprocessor plant is mounted, which is connected by the communication line to the sensors of fire detection. The sensors are mounted in the premises.

EFFECT: increased efficiency of fire-fighting through the insertion of the sprayer which eliminates turbulence of fire-extinguishing mixture flow.

1 cl, 5 dwg

Description

The invention relates to fire fighting equipment and can be used in industrial and civilian facilities with increased fire hazard for the localization of fires.

The closest object to the claimed technical essence is a fire extinguishing system containing a network of trunk and distribution pipelines with sprinklers installed on them, providing the required mode of supply of the extinguishing fluid to the fire source (RF patent No. 2415689, B05B 1/20 - prototype).

The disadvantage of the prototype is the inability to create the optimal flow structure.

EFFECT: increased fire extinguishing efficiency due to the introduction of an irrigator, which excludes turbulization of the flow of the fire extinguishing mixture.

This is achieved by the fact that in a gas-water fire extinguishing system containing a network of main and distribution pipelines with sprinklers installed on them, the main and each of the distribution pipelines consists of water and gas supply pipelines, while the water is supplied to the main pipeline from a pneumatic tank through a pipeline, and gas supply - through a pipeline from a gas distribution station, which includes compressed gas cylinders and two reducers, one of which regulates the gas pressure in the mag a trawl network, and the other is connected by a pipeline to the cover of a pneumatic tank to create water pressure in the main network, and an automatic microprocessor station is installed to start the system, installed in the gas supply line between the pipeline connecting the cylinders to the compressed gas and in front of the reducers, which is connected by a line communication with fire detection sensors installed in the room.

Figure 1 shows a diagram of a gas-water fire extinguishing system, figure 2 is a diagram of a spray.

The gas-water fire extinguishing system (Fig. 1) is designed for local extinguishing and localization of the fire source in the room and consists of a network of trunk 1 and distribution 2 pipelines with atomizers installed on them 5. Trunk 1 and each of distribution pipelines 2 consists of two pipelines: water supply 4 and gas 3, for example nitrogen. Water is supplied to the main pipeline 1 from a water tank 13 (pneumatic tank) through a pipe 14, and gas is supplied through a pipe 6 from a gas distribution station, which includes cylinders 7 with compressed gas and two reducers 11, one of which regulates the gas pressure in the main network 1, and the other is connected by a pipe 12 to the cover of the pneumatic (water) tank 13 to create water pressure in the main network 1, into which, in addition, molecules of non-combustible gas, for example nitrogen, diffuse, increasing the efficiency s fire extinguishing. To start the system, an automatic microprocessor station 10 is installed, which is installed in the gas supply line between the pipeline connecting the cylinders 7 to the compressed gas and in front of the reducers 11, which is connected by a communication line 9 to the fire detection sensors 8 installed in the room.

The sprayer is made pneumatic (Fig.2-5) and contains at least two air fittings 20 connected to the air chamber 25 formed by the base 15 and the upper plate 16 by means of gaskets 17 and having at least three slot nozzles 26. In the upper plate 16 are grooves 24, in which there are at least three feed tubes 23, the outlet openings 27 of which are located above the outlet openings of the slotted nozzles 26.

The feed tubes 23 are connected to the distributor 22 of the working fluid. The feed tubes 28 are closed by a lid 18 fixed to the top plate 16 of the atomizer. The base 15 and the upper plate 16 with the cover 18 are made in the form of circles. Gas-water fire extinguishing system operates as follows.

For uninterrupted and reliable operation of the main supply main network 1, the system includes a water supply 13 (pneumatic tank or water tank). The main network 1 is connected to distribution 2 pipelines with atomizers 5 installed for them for gas-water mixture. When the temperature rises during a fire in a production building, a fire detector 8 or other automatic fire detection and warning device (not shown) is activated, which starts an automatic microprocessor station 10, while the atomizer 5 fires and extinguishes, for example, nitrogen-water, the mixture enters center of fire. It is possible to start from a fire station by a signal received by a warning signal system.

Pneumatic sprayer operates as follows.

Gas is supplied to the pneumatic atomizer through at least two air fittings 20 to the air chamber 25, and the working fluid flows through the distributor 22 to the supply tubes 23. The working fluid flows out of the supply pipes 23 through the openings 27 and enters a flat air stream, flowing from the outlet holes of the slotted nozzles 26 for dispersing the working fluid. In this case, an airborne droplet is formed, directed in all directions. The flow rate of the working fluid and the dispersion of the spray are regulated by the installation of feeding tubes with different diameters of the outlet openings.

Claims (2)

1. A gas-water fire extinguishing system containing a network of main and distribution pipelines with atomizers installed on them, characterized in that the main and each of the distribution pipelines consist of water and gas supply pipelines, while the water is supplied to the main pipeline from a pneumatic tank through a pipeline, and gas supply - through a pipeline from a gas distribution station, which includes compressed gas cylinders and two reducers, one of which regulates the gas pressure in the gas sweeping network, and the other is connected by a pipeline to the cover of the pneumatic tank to create water pressure in the main network, and to start the system an automatic microprocessor station is installed, installed in the gas supply line between the pipeline connecting the cylinders with compressed gas and in front of the reducers, which is connected by a communication line with fire detection sensors installed in the room. 2. The gas-water fire extinguishing system according to claim 1, characterized in that the atomizer is pneumatic and contains a base with a lid, an air chamber with an air or gas supply, feed tubes for supplying liquid, while the gas is supplied through at least two air the nozzle connected to the air chamber formed by the base and the upper plate by means of gaskets, and having at least three slotted nozzles, and in the upper plate there are grooves in which there are at least three feeders s tubes, the outlets are located above the outlet openings of slotted nozzles, the feeding tubes are connected to the distributor of the working fluid and closed by a cover fixed on the top plate of the nebulizer, and the base and upper cover plate are in the form of circles.

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