SU612028A1 - Hydraulic pulser - Google Patents

Description

I

The invention relates to the field of mining, in particular to hydraulic impulses used in coal stripping with water.

A hydraulic impulse is known, which includes a barrel with a nozzle, a water hammer chamber, a ram ankk and an impact piper. The hydropercussion chamber of the hygroimsator is equipped with diaphragm valves and is divided by a partition into two cavities communicating with the cavities of the membrane valves C11.

The disadvantage of the known impulse is low destructive power.

The closest in technical essence and sufficient result is a hydropulse, which includes a shock pipeline, a pneumohydroaccumulator, trunks with Nsh adkami of different diameters, a two-seat valve, made in the form of a plate, a pneumohydraulic actuator and a charge pipe - &.

KU t2.

The aim of the invention is to increase the efficiency of destruction of the field of fossil by a pulsed jet and to simplify the design of the hydroplating apparatus.

This is achieved by the fact that the interstach of the dish / saddle seat is combined with the impact pipeline.

In the drawing, a hydraulic diagram of a hydraulic drive is shown.

The impulse includes impact pipe 1, pneumohydraulic accumulator tor 2, barrels with nozzles 3 and 4 of different diameters, two-seat valve 5 with piston 6, seats 7 and 8 of different diameters, with the diameter of the saddle 8 bopy of the diameter of the saddle 7, but less than the diameter of the piston, charge tube 9, gas cavity 1O with a separating diaphragm 11 and valve 12.

Works pulse as follows,

Claims (1)

In the initial position, the valve 12 is completely closed and when water is supplied to the input of the hydraulic pulsator in the impact pipe 1 and cavity 13, the same pressure is established. As a result, valve 5 occupies the uppermost position, since the diameter of the piston 6 is larger than the diameter of the seat 8, B 3Tt) M valve positions, water from pipe 1 is discharged into the atmosphere through nozzle 4, which has a diameter greater than that of nozzle 3, the impulse is activated by opening the valve 12, the pressure of water in cavity 13 decreases by the amount of pressure loss B of tube 9, and the valve Pan 5 pushes s to the extreme position under the influence of water pressure on the upper torns of the piston and valve. B as a result of overlapping the barrel with a nozzle 4 of a larger diameter and connecting the pipeline 1 with the nozzle, 3 of a smaller diameter drastically reduces the flow of water in pipeline 1, which leads to a hydraulic shock, Vrznitsha, at the same time, the pressure surge wave propagates to the pneumohydroaccumulator 2, from which it Reflects in the form of a normal pressure vessel and returns to valve 5. During the movement of these waves, a high pressure of a hydraulic shock remains in the wellbore and a high-pressure pulse jet flows out of the nozzle 3. At the same time, the pressure in the cavity 13 rises due to the influx of high pressure water from the impact pipe-slug through the tube 9 into it. At the same time, the inflow of water into the cavity 13 exceeds the water from it through the valve 12, which causes the latter to have a higher hydraulic resistance than the hydraulic pressure - with a charge tube resistance. As a result, the volume of the cavity 1O decreases, and the pressure in it is psi, to the MOMeHiy of the arrival of the reflected waves of normal pressure from the pneumohydroaccum fiSTcpa 2 to kp & 5 the cavity 13 is charged with a pressure greater than the pressure in the reflected wave. Therefore, when it arrives at the reflected water valve 5, it moves to the extreme upper position and closes the water access to the barrel with the nozzle 1 3 and connects the pipeline 1 with the nozzle 4. Water flow through the pipeline increases and a pressure pressure wave arises that spreads towards the pneumohydroaccumulator 2, During the movement of this wave to the pneumogadacoupulator 2 and returning it to valve 5 as a wave, the normal pressure cavity 13 is discharged through valve 12 and tube 9. From the receiver and to valve 5 of the reflected wave of the normal The pressure that exceeds the residual pressure in the cavity 13, the valve 5 perebrasyvaets to the lowermost position, which leads again to the appearance of a hydraulic shock in the pipe 1. Further gidroimpulsatora work cycle is repeated. The claims Gidroimpulsat, vklkechayuschy percussion conduit pnevmogidroakkumul torus trunks with nozzles of different diameters, double seat valve vtopnenny as plates, membrane pnevmogidrsnprivod and the charging tube, characterized in that, in order to increase the efficiency degradation of minerals pulse jet and simplify design, the space between seats is combined with a shock duct. Sources of information taken into account during the examination: 1. Author's certificate No. 354136, class, Е 21 С 45/00, 1972, 2, Copyright certificate № 137776, КЛ, Е 21 С 25/60, 1969, Chuchcha Chuchula ..