RU27638U1 - FIRE FIGHTING COMPLEX OF UNDERGROUND FIRE EXTINGUISHING COMBINED FOAM - Google Patents

Abstract

A fire fighting complex for extinguishing underground fires with combined foam, including an underground nitrogen energy complex, a foam generator and compressed inert gas blowing agent solution supply pipelines, characterized in that the nitrogen complex is additionally equipped with a nitrogen-refrigerant mixer made with 114B2 refrigerant storage tanks located on the mine carriage platform and having a folding fire hose for the delivery of freon to the mixer with gaseous nitrogen and in the operator-controlled mode to the mixing chamber with a solution of foaming agent fed into it a dosing pump with the direction of the finished mixture in collapsible downhole foam generator disposed in the area of emergency site proemnoy guide tube in the body of insulating a jumper installed in mines shaft.

Description

FIRE FIGHTING COMPLEX OF UNDERGROUND FIRE EXTINGUISHING COMBINED FOAM

The utility model relates to mining and can be used to localize and extinguish underground fires in remote places.

A device for implementing the method is known, which includes an injection pipe into a fried section having an inert foam water collector prepared by mixing a foaming solution and liquid nitrogen, while the displacement takes place directly in the fired section (ed. Certificate USSR No. 1286790, class E 21 F 5 / 00.1985).

A disadvantage of the known device is the lack of a nitrogen-chladonic installation with displacement units in its kit to produce foam of a combined composition.

The purpose of the utility model is to increase the efficiency and safety of localization and extinguishing of underground fires in remote places by creating a combined phlegmatizing foam and its implementation through a pipe channel into an isolated space.

This is achieved by the fact that the fire complex is additionally equipped with a nitrogen-chladone installation with a folding fire hose, incorporating a mixing device with gaseous nitrogen and in the operator-controlled mode of supplying it to a displacement chamber with a foaming solution supplied to it by a metering pump with a direction to a downhole foam generator located in the area of the emergency section behind the opening guide pipe in the body of the insulating bridge installed in the mine workings of the mine.

E 21 F 5/00

combined phlegmatizing foam with a metering pump increasing the efficiency of mining and rescue operations in coal mines.

The figure shows the technological layout of the fire-fighting complex for extinguishing an underground fire in an isolated space of a mine with the following, it is the reference designation of technological equipment: 1- nitrogen-chladone generator; 2- platform of the block of reservoirs of lshdnoy nitrogen of the complex of nitrogen energy KAE-1; 3 platform of the production evaporator of the KAE-1 complex; 4- fire hose (pipeline) for the delivery of freon mixture with a mixing chamber 6; 5 - a pipeline for supplying a foaming agent solution; 7- metering pump; 8 - metered foaming agent solution; 9- mixing chamber of a nitrogen-chladone mixture and a foaming agent solution; 10- opening pipe of the insulating jumper 11; 12- folding downhole foam generator of combined foam.

Fire-fighting complex to extinguish an underground fire works as follows.

To extinguish an underground fire in the mine, a temporary insulating jumper 11 is installed, in which an opening pipe 10 is provided for introducing a foam generator 12 into the isolated space of the collapsible borehole, which is introduced through the body of the jumper 11 during the work according to the technological diagram of the fire fighting complex. When the Freon 114B2 is supplied under excess pressure from the cylinders on the generator installation platform 1, the mixture enters the mixing chamber 6, where it is actively mixed with gaseous nitrogen supplied from the production evaporator 3 of the KAE-1 nitrogen energy complex. The finished combined composition is transported to the jumper 11, where it enters the mixing chamber 9 with a foaming solution, which is pumped by the metering pump 7 and pre-prepared in a mine trolley, for example, using a slurry submersible pump with pneumatic drive ШПНП-1 (not shown). The prepared combined nitrogen-freon foam falls over the jumper 11,

creates a foam plug and, accumulating, is transported to the zone of the fire.

The design of the foam generator 12 folding with the spring-loaded guides of the foam generator grid 12 allows, with a small opening pipe 10, to feed into the isolated space a well-sufficient foam generator 12.

The combination in the nitrogen inert foam of Freon 114B2 provides a phlegmatizing essence that stops flame burning.

The proposed technical solution of the fire complex allows to increase the efficiency and safety of mine rescue operations during the elimination of underground fires in mines.

(- R.V.Dikova / B.V. Chubarov

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V.V.Myachin A.E. Chuprikov A.S. Golik S.A. Sharov

Claims (1)

A fire fighting complex for extinguishing underground fires with combined foam, including an underground nitrogen energy complex, a foam generator and compressed inert gas blowing agent solution supply pipelines, characterized in that the nitrogen complex is additionally equipped with a nitrogen-refrigerant mixer made with 114B2 refrigerant storage tanks located on the mine carriage platform and having a folding fire hose for supplying freon to the mixer with gaseous nitrogen and in the operator-controlled mode into the mixing chamber with a solution of foaming agent fed into it a dosing pump with the direction of the finished mixture in collapsible downhole foam generator disposed in the area of emergency site proemnoy guide tube in the body of insulating a jumper installed in mines shaft.