SU1609896A1 - Device for cleaning hole filter - Google Patents

Abstract

The invention relates to water supply and to the structural embodiment of a device for cleaning water intake filters. The purpose of the invention is to increase the reliability and intensification of cleaning. The device comprises a housing 1, in the lower part of which there are holes 2, below which is placed a partition 3, which is a reflector for the hydrodynamic flow. An inductor 5 is placed in the upper part of the case. It is connected to a generator of current pulses using a cable-cable 6. The inductor is made in the form of a metal plate enclosed in an insulating casing. In the housing, under the inductor, there is an element for pressure transfer, made in the form of a piston 7 of a dielectric material, in the upper part of which there is a plate 8 of highly conductive material. The piston is pressed against the inductor 5 by means of a spring 9. In the upper part of the housing, on its side surface, a valve 11 is installed to release air. Packers 12 and 13 are also placed on the side surface of the case, and a fairing 16 is connected to the lower part of the case. 1 Cp. F-crystals, 1 sludge.

Description

torus 5 - connected to a current pulse generator using a cable-cable 6. The inductor is made in the form of a 5-metal plate enclosed in an insulating casing, 3 housing under the inductor is placed an element for transmitting pressure, which is in the form of a dielectric piston 7, the upper part of which is installed

plate 8 of highly conductive material. The piston is pressed against the inductor 5 by means of a spring 9. At the top

part of the housing on its side surface mounted valve 1 for air release. Packers 12 and 13 are also placed on the side surface of the case, and a fairing 16 is attached to the lower part of the case. 1 Cp f-ly, 1 ill.

The invention relates to water supply, namely to devices for cleaning water well filters. The purpose of the invention is to improve reliability and intensify cleaning.

The drawing shows a device for cleaning filters Schvazkin, longitudinal section.

The device comprises a housing 1 in the form of a cylindrical pipe, the diameter of which is 10-2.0 mm smaller than the diameter of the well. In their part, the body is made with slit holes 2, under which the partition wall 3 is placed, with a reflector for hydrodynamic flow. In the upper part of the housing, under the cover 4, an inductor 5 is placed, connected to a current pulse generator, installed on the ground (not shown), using a cable-cable 6, on which the device is lowered into the well. The inductor 5 is made in the form of a metal plate enclosed in an insulating casing.

3, housing 1, under the inductor 5, is placed a pressure transfer element made in the form of a piston 7 of a dielectric material, in the upper part of which a plate 8 of highly conductive material is mounted.

The piston 7 is pressed against the inductor 5 by means of 9, supported on the ring 10. In the upper part of the housing 1, a valve 11 is installed on its side surface to release air when the device is lowered into the well below the water level.

Pa of the side surface of the housing in its upper and lower parts are also installed on the flanges of the packers 12 and the Packer 12 is connected to the compressor installed on the ground (not shown) by means of the hose 14, and the packer 13 is connected to the packer 12 by means of the bypass hose 15. Device has a fairing 16 connected. with housing 1 at its bottom.

The device works as follows.

The device is lowered onto the cable-cable 6 into the well and installed in the upper part of the filter. Compressed air is supplied to the packers 12 and 13 by means of a hose 14 from the compressor, as a result of which they are inflated and pressed against the filter, which provides sealing of the filter section being processed.

When the generator and current pulses are turned on, cable 6 is applied to inductor 5 by a high voltage current pulse, while eddy currents are induced in the metal plate 8 of the piston 7, and their interaction with the current of the inductor 5 leads to significant (up to 300 KPa) pressures. Under the action of these forces, the piston 7 rapidly moves downward, displacing the liquid from the housing 1 through the openings 2. Under the action of a high pressure flow, the filter section between the packers 12 and 13 causes the destruction of the mudcake and the aquifer of the filter adjacent to the filter. The reciprocating movement of the piston 7 is effected by the action of the spring 9. After applying several high voltage pulses to the inductor 5, the compressed air from the packers 12 and 13 is exhausted, the device on the cable 6 is lowered below and the next section of filter is flushed. In this way, the well filter is washed at intervals of the entire length. The proposed device provides for the creation of high-pressure water jets, the pressure of which reaches 15 20 l-ffla, which leads to the effective destruction and erosion of clogging deposits at. the absence of hydraulic, mechanical or pneumatic energy sources and drive systems.

Claims (2)

1. An apparatus for cleaning well filters, comprising a housing, an inductor disposed therein and a pressure transmission element dp, characterized in that, in order to increase reliability and intensification Editor A.Lezhnina Compiled by L.Nakhmetova Tehred L.Oliynyk Order 3710 Circulation 568 VISHI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, 4/5 Raushsk Nab. Production and publishing plant Patent, Uzhgorod, st. Gagarin, 101 cleaning element, the pressure transmission element is designed as a spring-loaded piston housed in the housing under the inductor mounted to the upper part of the body, which is made with openings in the lower part. 2. The device according to claim 1, characterized in that it is provided with a valve for air release and packers placed on the side surface of the housing, as well as a flow window connected to the housing in its lower part, with this inductor made in the form of a metal plate enclosed in an insulating jacket. Proofreader M.Sharoish Subscription