RU1788283C - Method for self-laying of flexible pipeline - Google Patents

Abstract

Usage: mining depot, the elimination of accidents in mine workings. SUMMARY OF THE INVENTION: One end of a flexible conduit is connected to a pneumatic energy source. Flexible gas is supplied under pressure. The overpressure moves the free end. At the same time, the flexible tubing is rotated about the longitudinal axis. 1 ill.

Description

The invention relates to methods for laying flexible pipelines and can be used in the mining industry to eliminate accidents in mine workings.

: There is a known method of self-laying a flexible pipeline, including folding from one end of the pipeline, connecting the other end to a gas supply source under pressure and unwinding the flexible pipe by supplying gas under pressure into the longitudinal pockets, wherein the pipe is rolled by rotating the free end inside the pipeline with the formation of a torus.

The method is implemented as follows.

Under the action of the excess pressure of the gas supplied to the longitudinal pockets, a force arises directed along the pipeline, the pipe rolled up in the form of a torus, is unwound and laid along the horizontal production. Simultaneously with the gas supply inside the longitudinal pockets, a fire extinguishing substance is fed into the production through the internal cavity of the pipeline. After the entire pipeline is continued

After working out, the next pipeline, rolled up in the form of a torus, is delivered to its free end, with the help of a flexible hose and fittings, the cavities of the pockets of both pipelines are connected and laying is continued in a similar way.

The disadvantage of this method is the limited scope and low reliability of the method. This is due to. that the length of the pipeline being laid is limited (from several meters to several tens of meters) due to the need to fold it. into a torus with an external diameter equal to the diameter of the pipeline. This method of laying will not allow to build up the pipeline after laying one pipe, rolled into a torus, without the presence of people in the mine. In addition, when laying the pipeline in this way in cluttered mine workings, the likelihood of stopping the translational movement of the pipeline as a result of meeting it with an obstacle is high.

A known method of self-laying a ventilation pipe, taken as a prototype, including delivery to the pipe fan in a cassette, connecting

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connecting the cartridge to the source of pneumatic energy, turning inside out, fixing one end of the pipeline on the pipe and securing the other in the cartridge, orienting the flexible pipe in the direction of the gasket path., supplying pneumatic energy inside the pipe.

The method is implemented as follows. Under the pressure exerted by the source of pneumatic energy, a longitudinal force arises in the pipeline, which causes the pipeline to turn inside out and run along the production soil. After the flexible pipeline is self-laid to a predetermined length, its non-turned part is cut off at the nozzle and fixed on it. After that, fresh air or extinguishing agent is supplied through the pipeline. The remaining air between the turned and not turned parts of the pipeline is removed through special channels.

The disadvantage of this method is the limited scope and low reliability of the method. When laying the pipeline in this way in cluttered mine workings, the likelihood of stopping the translational movement of the pipeline as a result of meeting it with obstacles, especially having a height of more than half the diameter of the pipeline, is high.

The aim of the invention is to increase the reliability of self-piping in a cluttered space.

This goal is achieved due to the fact that in the method of self-laying a flexible pipeline, comprising connecting one of its ends to a pneumatic energy source, supplying gas under pressure to the flexible pipe and moving its free end under the influence of excessive gas pressure, the flexible pipe is rotated around its longitudinal axis one temporarily with the movement of its free end. ....

. The essence of the proposed method is as follows. The pipeline assembled in the cassette is delivered to a pneumatic energy source, placed inside the nozzle, and rigidly fixed in it using a bracket. Latrubok is connected to a source of pneumatic energy. One end of the pipeline is turned inside out and fixed on the nozzle, then gas is supplied to the nozzle by pressure. Under the action of the excess gas pressure created by the pneumatic energy source, a longitudinal force arises in the pipeline,

which causes the pipeline to turn inside out, exit the cassette and run through the soil of a mine. At the same time, the pipeline is rotated around its longitudinal axis. If obstacles are encountered along the pipeline path, then having reached them, the pipeline will stop or slow down its forward movement. At the same time, the pipeline will continue to rotate around its axis, as a result of which its end in contact with the obstacle will move in the vertical plane with the obstacle until the obstacle is circumvented and further progressive movement becomes possible. After the entire pipeline assembled in the cartridge has been laid for production, if necessary, it is possible to continue laying the pipeline. To do this, turn off the pneumatic energy source, disconnect the end of the pipeline laid by the production line from the cartridge, replace the empty cartridge with a new one with the pipe laid in it, the end of which is connected to the free end of the pipe laid by the production line and again supply gas under pressure.

After self-laying to a predetermined length of the flexible pipe, its non-turned part is cut off at the nozzle and fixed on it. Then, fresh air or extinguishing agent is fed into the pipeline through the nozzle. .., ..--.

The proposed method of self-laying can be implemented using the device shown in the drawing.

The device contains a pneumatic energy source 1, for example, a fan, with a pipe 2 connected with a clamp 4 to one end of a pipeline 3 made of waterproof material, the other end of which is connected to a storage device 5 made in the form of a cartridge placed and rigidly fixed with brackets 9 inside the nozzle 2 in such a way that between the walls of the nozzle of the 2nd cartridge 5 there remains an annular slot 6 for the passage of air into the pipe 3. For rotation of the nozzle 2 with the drive 5, the drive 7 serves. The channel 8 serves to remove spirit from the space between the inverted and uninverted shell of the pipeline 3 through the holes 10.

The device operates as follows.,

Under the action of the excess gas pressure generated by the source of pneumatic energy 1, a linear force arises in the pipe 3, which causes the pipe 3 to turn inside out

soil mining. Simultaneously with the gas supply into the pipeline 3, the drive 7 rotates around the longitudinal axis of the pipe 2 with the cartridge 5 and pipe 3, which allows the free end of the pipe 3 in case of obstruction to move along it in a vertical plane and thus bypass these tstv. After self-laying for a predetermined length of the flexible conduit 3, its non-turned part is cut off at the nozzle 2, fixed on it and air is supplied into it. The air remaining between the inverted and non-inverted parts of the shell of the pipeline 3 is removed through channels 8, which communicate with the annular space of the pipeline 3 by means of the openings 10, under the action of the overpressure created by the pneumatic energy source 1.

The advantage of the proposed method of self-laying of a flexible pipeline is to increase the reliability of self-laying due to the possibility of overcoming obstacles as a result of the simultaneous movement of the laid pipeline in

Claims (1)

two planes x. With this self-laying method, the pipeline can at any time be used to supply air or extinguishing agent through it. Claims A method of self-laying a flexible pipeline, comprising connecting one of its ends to a pneumatic energy source, supplying gas under pressure inside the flexible pipe and moving its free end under the influence of excessive gas pressure, characterized in that, in order to increase the reliability of self-laying of the flexible pipe in a cluttered mining space , the flexible conduit is rotated around its longitudinal axis simultaneously with the movement of its free end.