RU1780772C - Device for extinguishing fire in metal tank - Google Patents

Abstract

The invention relates to the extinguishing of burning tanks, mainly to metal tanks for storing oil and oil products. The purpose of the invention is to reduce the time to extinguish a fire. In the event of a fire in a metal tank and the formation of air pockets to the wall of a burning tank, the charge irrigation through the nozzle is connected on the irrigated wall of a metal tank. The movement of the device continues until the second row of probes of the device comes into contact with the tank wall, which stops the device and sends a signal to turn on nozzles with a fire extinguisher coming through the pipeline to extinguish a fire in a metal tank. 2 ill.

Description

The invention relates to the extinguishing of burning tanks, mainly to metal tanks for storing oil and oil products.

A device for extinguishing a fire in a metal tank is known, comprising a foam generator, a pressure line, a locking element made in the form of racks with grips and an airtight shutter including an elastic membrane and a cover with a pusher.

A prototype of the invention is a device for supplying an extinguishing agent under pressure, containing a pressure line with a foam generator. attached to the hatch of a metal tank.

The disadvantage of this device is that the fire extinguishing system is mounted in advance, for example, during installation or

reconstruction of the reserve reserve, which is associated with a rise in the cost of tank equipment. In addition, this system may not be used for the entire duration of the tank. In a fire, the roof of the metal tank in many cases quickly burns out, collapses into the tank and pinches in it with a skew, resulting in air pockets. For these reasons, and also because of the deformation of the roof of the upper part of the metal tank from high temperature and blast wave, the fire extinguishing system often does not work. In this connection, in emergency cases, there are no practical methods for creating a hatch in metal tanks. When extinguishing a fire, it is necessary to cut holes manually by volunteers, which leads to mortal risk and a delay in starting fire extinguishing.

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substance into the burning cavity of the metal reservoir.

The aim of the invention is to reduce the time to extinguish a fire.

The indicated goal is achieved by that. that the charge irrigated through the nozzle, UKZ (elongated cumulative charge) is supplied and fixed on the irrigated wall of the metal tank using the first stage of the probes of the device, then the hatch is cut out by explosion, after which the fire-extinguishing substance is sprayed under pressure in the internal cavity of the metal tank automatically from the signal of the second system of probes that are triggered by touching the wall of the burning metal tank. The fire extinguishing agent supply unit is equipped with two-row probes located at different levels, the end of the first row of probes is fixed along the perimeter of the UKZ with magnets and electrical switches that are activated when the device touches the wall of a burning metal tank, and the second row of probes is made There is a function about the start of an automatic stop of the device and the signaling of the extinguishing agent.

From the second stage of the probes, the extinguishing agent is sprayed with nozzles under pressure in a metal reservoir, as a result of which the contents of the metal reservoir cease to burn.

In FIG. 1 and 2 show an inventive device.

The fire extinguishing device in the metal reservoir 1 comprises a housing 2 on which nozzles 3 for supplying a fire extinguishing agent and nozzles 4 for irrigation are mounted. The probes 5 and magnets b are installed in the housing, having a horizontal stroke in the housing 2 due to spring systems 7. A UKZ 8 is mounted on the housing, which is driven by the detonator 9. One or several probes of the second row 10 serve as an automatic stop switch and alarms for spraying extinguishing agent. Irrigation fluid is supplied through pipe 11, extinguishing agent through pipe 12. The power supply system is carried out via cable 13.

The device operates as follows.

In the event of a fire in the metal tank and the formation of air pockets, the device is led to the metal tank 1. Nozzles 4 irrigate UKZ 8 and the walls of the metal tank with the liquid coming through the pipe 11. When the probes 5 touch the wall of the burning tank 1, magnets 6 are activated.

ensuring the stationary position of the device, with the simultaneous inclusion of the detonator 9. -UKZ forming with a cumulative jet 8 cuts the hatch in the wall of the metal tank 1. The movement of the device continues until the probes 10 are in contact with the wall of the metal tank 1, which leads to a signal to turn on the nozzles 3 with a fire extinguisher entering the pipe 12

to extinguish a fire in the metal tank 1, and stop the device. The power supply system is carried out via cable 13.

The present invention reduces

fire fighting time, reduces the cost of the equipment of the metal tank, improves the conditions and safety of firefighters. In addition, the proposed device is mobile and can repeatedly

used

Claims (1)

The device for extinguishing a fire in a metal tank containing a node extinguishing agent supply with nozzles located in the central part of the assembly, characterized in that, in order to reduce the time to extinguish the fire, the extinguishing agent supply assembly further comprises irrigation nozzles and cumules -. an active charge with a detonator, switches installed around the perimeter of the assembly, spring-loaded electromagnets, probes installed at different levels with the ability to interact with the wall of the tank, while the probes placed on one of the levels are mechanically connected to the switches for supplying the extinguishing agent, and the probes mounted on the other level mechanically coupled to switches electrically coupled to the detonator and electromagnets. //