RU16666U1 - HIGH-PRESSURE INERT GAS GENERATOR - Google Patents

Abstract

A high-pressure inert gas generator, including elements of a device for generating inert gas by means of a gas generator with two separate high and low pressure gas flows, connecting each of the flows to an inhibited foam device, erecting a twin jumper with two partitions, a foaming device with a flow regulator and a device for supplying a layer of a hydrophobic emulsifier-concrete in the form of inert dust or powder, characterized in that directly in a pulverizer solution supply line from the fire line to the device for producing high-level foam of the low pressure line of the inert gas generator is equipped with a pulse flow meter for intermittently supplying the level of continuous generation of low-level foam through the soil of inclined mine workings, the feed pulse being remotely controlled.

Description

HIGH-PRESSURE INERT GAS GENERATOR

A useful generator model relates to mining and can be used to extinguish underground fires in inclined mine workings of a mine.

A device is known for extinguishing a fire, including a casing, a spraying agent of a foaming solution and a net, and in which a method for preparing a two-layer stream of foam of various multiplicity is implemented. Moreover, in the central part of the stream, foam of low multiplicity is placed, and foam of high multiplicity is formed along the perimeter of the stream (ed. Certificate. USSR # 1789239, class A 62 C 31/12, 1993).

It is also known to install a combined foam supply containing a foam generator and an air-blown foam barrel with a flat jet nozzle located beneath it. In this case, the resulting foam of medium multiplicity falls on a flat stream of low-level foam, through which it is transported through the air to the fire (ed. Certificate. USSR # 1 I08560I, class A 62 C 31/12, 1984).

A disadvantage of the known devices and the methods implemented therein is that it is difficult to transport the resulting puff foam along a cart or a tug in the cramped conditions of mine workings. In addition, these methods do not provide the necessary conditions for overlapping the cross section of the mine. For the simultaneous use, in addition to fire extinguishing properties, of another insulating functional foam.

There is a method of isolating and suppressing shzhar in inclined mine workings of a mine, which is a real mine; it is a useful model (RF Patent & 2086770, la.E 21 5/00, 1997).

As a disadvantage of the method is the insufficient range of transportation of the inert foam stream in the cramped conditions of the mine workings.

ifi 21 P 5/00

high-density foam on the mind of a continuous foam flow of low-level foam on the basis of mining.

The essence of the proposed utility model, which includes elements of inert gas generating devices of a gas generator with two separate gas flows of high and low pressure, respectively, connecting each stream from the device to form inhibited foam, erect a pair of bridges with double walls and a device for foaming with a regulator flow and fixture. for feeding a layer of a hydrophobic emulsifier - bentonite in the form of inert dust and powder, while directly into the pipeline a foaming agent conduit from the fire to the device receiving vysokokratnoy foam; shnii low pressure inert gas generator set pulse flowmeter .tsdya intermittent supply of the level of continuous generation of low expansion foam soil excavation inclined at what Shu1puls supply configured .distantsionnym control.

The whole set of distinguishing features of a useful business has a useful property, which is to reduce the resistance of the sides of a mine to an inert flow

foam with the possibility of pulsed supply of high-level foam from the distant safe approaches to the fire and with simultaneous overlapping of the foam stopper at the base of the inclined mine with horizontal development. In addition, the high-pressure gas flow increases the shenematic energy of the movement of the pillows from low-level foam and thereby increases its structure and mobility with the pulsed delivery of high-pressure foam from above, which makes it possible to increase its carrying capacity for its accumulation at the base of the ukiaon.

Figure 1 shows the installation. . on the platform of mine trolleys, the container and the container with a foaming agent were consumed, and Fig. 2 conventionally shows an inert gas generator with foaming devices and a pulse flow meter.

gas, made on the basis of VGIG-300, which contains a life of 3, for: supplying a high-pressure (0.3 Sha) vapor-gas stream to the device 4 for producing low-level foam 5 and located at

soil 6 directly behind the mesh partition 7. Line 8 of low pressure (0.03-0.02 Sha) is connected to the device 9 for the production of high-foam 10 and which is located inside the paired jumper II, directly behind the solid burnout, deck 12. For the operation of the generator 2 use kerosene coming from the supply tank 13 through the pipe 14 for burning in the pipe compressor of the generator 2. V. shost 15 with a foaming agent is connected through a pipe 16 through an automatic dispenser 17 with a fire pipe 18, The drainage of the foam generator solution to the generator foam ment carried by the diverter conduits 19 and 20. In the case in neobhodamosti Jshniyu 8 can be set flow controller 21, obespechivagatsy increasing gas pressure in the pipeline. A special device (not shown) is also installed for feeding a hydrophobic emulsifier into the low-level foam 5 through channels (not shown) made in the pipe shield 22. On the pipeline 20 for supplying the foaming solution from the fire pipe 18 to the device 9 for receiving an all-fold foam (foam generator) of a low line VSHG-300 generator installed pulse meter 23 for intermittent supply to the level of continuous generation of low-level foam through the soil of inclined mine workings, and ying with dastantsionnym control operator VPGG-ZOO.

Utility model VSHG-300 works as follows.

Kerosene is supplied from a supply tank 13 through a pipeline 14 to a waste gas in an inert gas generator 2. The hot inert gas is injected into a hot gas until a cooled vapor-gas mixture is formed with a pressure of 0.3 Mia and sent through line 3 to a device 4 located in the natshon mine I directly near the soil 6. At the same time, line 8 directs the flow of inert gas of low pressure (0.03-0.02 MPa) into the device 9, which is located inside the paired bridge II. From tank 15 through line 16 by means of an automatic

dispenser 17 serves a foaming fluid for mixing with the water of the fire pipe 18. The finished foam-forming mixture is supplied through lines 3 and 8 through pipelines 19 and 20. Due to the device 4, made, for example, in the form of a collector with a hole, a low-pressure multiple is formed. foam 5, which covers the soil 6 with a wide carpet and independently, due to the high mobility and kinetic energy of ejection from the device 4, flows down the slope of the mine I, the foaming device 9 using a mesh partition 7 generates t high-foam 10, which, being low-mobility, lies on top of low-foam 5 and is transported by it to the fire. In this case, the foam fills the entire remaining section of the inclined outlet I, forming a kind of foam stopper that impedes the penetration of fresh air enriched with 1 oxygen to the burning center. The continuous partition 12 of the steam jumper II prevents the penetration of foam into the active mine with equipment located in it. If necessary, when necessary, to improve the quality of high-pressure foam, to change the gas flow rate, a flow regulator 21 is installed in line 8, which can be performed , for example, in the form of an ejector atomizer. In order to ensure the immiscibility of the foam flows and to improve the itx kinetodanamic properties in the space between the 11th adjacent contacting surfaces of the high-pressure foam 10 and low-level foam 5, a layer of a hydrophobic emulsifier is placed, e.g. flow of low-level foam 5 by any known and adapted for this technical properties. This improves the transport parameters of the foam flow and its isolation properties. It is possible to supply bentonite powder, which is a stabilizer of the foam structure, improves the structure of the foam stream.

In order to increase the transportation distance, reduce the resistance of the lining of the mine working I, a pulse meter 23 is installed on the foam-forming agent supply line 20 to the high-foam foam receiving device 9, which

according to the set point, the operator renfshu provides an intermittent in time flow to the level of continuous generation of low-level foam; transported through the soil of the inclined mine I, the pulse in time can be changed from zero, depending on the transportation path. In this case, only the vapor-gas mixture is pumped into the upper part of the mine.

The proposed technical solution of the useful model VGMG-300 provides increased efficiency and safety, reduce the time it takes to expose a fire in a sloping mine during mining operations in coal mines.

Patent Lawyer Authors:

M.A. Chernova

A.F.Sin A.E. Chuprikov si - "-" t- A.S. Golik y). B.V. Chubarov

.G. Uldanov f V.A. Skritsky

Claims (1)

A high-pressure inert gas generator, including elements of a device for generating inert gas by means of a gas generator with two separate high and low pressure gas flows, connecting each of the flows to an inhibited foam device, erecting a twin jumper with two partitions, a foaming device with a flow regulator and a device for feeding a layer of a hydrophobic emulsifier-concrete in the form of inert dust or powder, characterized in that directly in a pulverizer solution supply line from the fire line to the device for producing high-level foam of the low pressure line of the inert gas generator is equipped with a pulse flow meter for intermittently supplying the level of continuous generation of low-level foam through the soil of inclined mine workings, the feed pulse being remotely controlled.