SU1333430A1 - Arrangement for cleaning internal surface of pipeline - Google Patents

Abstract

The invention relates to the cleaning of deposits from the internal surface of a pipeline and provides for an increase in the quality of cleaning. The device is moved along the pipeline by the flow of the working agent transported through the pipeline. The sediments are affected by jets emitting from the tangential nozzles 3, an annular jet with inclusions of solid deposits flowing out of the annular gap between the elastic partition 5 and the inner surface of the pipeline, as well as the brush 4 consisting of separate cable segments, each of which is located in two diametrically arranged holes 8, the rows of which are E1x are spiral-wound on the cylindrical part of the housing 1 and fixed on the axial cable 7. The cable sections have the possibility of buckling in the area inside the housing 1. For determining the location of the device in the piping is provided with a capsule with a radioactive isotope. 1 hp f-ly, 2 ill. 7 Pipeline iU S (О 00 00 00 4 00 Фuz.l

Description

The invention relates to the cleaning of devices moving along pipes from the inside, and can be used in land reclamation, public utilities, as well as in the oil and gas industry in the repair and construction of main pipelines.

The purpose of the invention is to improve the quality of cleaning.

Figure 1 shows the device, a longitudinal section; figure 2 - section aa in figure 1.

Internal cleaning device

the surface of the pipeline has a housing d inside the cup 1 and a bend of diluted 1 in the form of a hollow cup with a streamlined bottom 2, tangential nozzles 3 for rotating the device around its axis and a brush 4 attached to the cylindrical part of the cup that allows to improve the quality of the tips around the axial cable 7, the fit of the brushes 4 to the layer of deposits on the walls of the pipeline is compensated for, taking into account the change in the thickness of the deposit,

camp 5, located in front of the brush 4 in the direction of movement of the device.

I To improve the efficiency, the shape of the nozzles is dependent on the shape of the Laval nozzle, i.e. has a narrowing to the outlet, and the bottom of the glass from the inside is executed in the form of a conical dissector 6.

A cable 7 is placed along the axis of the device, and on a cylindrical part of the glass there are spiral rows of diametrically arranged holes 8. Brush 4 consists of individual segments of cable 9, each of which is passed through two diametrically arranged holes and is connected with an axial cable 7. Diameter the elastic partition 5 is smaller than the diameter of the brush 4, so that a gap is formed between the inner surface of the pipeline and the elastic partition.

To determine the location of the device in the pipeline, it may be equipped with a radioactive isotope capsule 10.

A pipe cleaner is introduced through a special hatch into the pipeline ahead, and after closing the hatch, water is let in. The pressure of the pipe cleaner moves forward and, at the same time, due to the effect of pressure on the spiral plane from the cable segments 9, and due to the reaction emanating along the tangential jet, the rotation occurs simultaneously with the translational motion. As a result, deposits are cleaned with a brush 4 and water jets. Wherein

25

thirty

35

40

45

50

55

stki.

Thus, the invention provides improved quality of cleaning the internal surface of the pipeline.

Claims (2)

1. A device for cleaning the inner surface of a pipeline, comprising a body in the form of a hollow glass with a streamlined bottom, tangential nozzles for rotating the device around its axis, mounted on a cylindrical part of the glass brush and an elastic partition placed in front of the brush in the direction of movement of the device, different. In addition, 4fo, in order to improve the quality of the cleaning, it has the cable axes of the device, on the cylindrical part of the glass are spirally arranged in a row of diametrically arranged holes, and the brush consists of separate cable segments, each of which is passed through two diametrically arranged holes and is connected with an axial cable, while the diameter of the elastic partition and smaller than the diameter of the brush to provide an annular gap between the surface of the pipeline and the partition, 2. The device according to claim 11, wherein the device is equipped with a capsule with a radioactive isotope to determine its location in the pipeline. the less dense dense layer is eroded by reactive-rotating jets, the medium density layer softens with the action of an annular jet flowing out of the annular gap between the elastic partition 5 and the inner surface of the pipeline and carrying the hardest particles of deposits destroyed by brushes that increase the effect of hydraulic jet. At the same time, the brushes are continuously washed. Due to the elastic buckling of the cable sections 9 inside the cup 1 and the bend of the diluted ones, which allows to improve the quality of the cleaning around the axial cable 7, the fit of the brushes 4 to the layer of deposits on the pipeline walls is compensated for, taking into account the change in the thickness of the deposit, five 0 five 0 five 0 five stki. Thus, the invention provides improved quality of cleaning the internal surface of the pipeline. Formula izbre shadow 1. A device for cleaning the inner surface of a pipeline, comprising a body in the form of a hollow glass with a streamlined bottom, tangential nozzles for rotating the device around its axis, mounted on a cylindrical part of the glass brush and an elastic partition placed in front of the brush in the direction of movement of the device, different. In addition, 4fo, in order to improve the quality of the cleaning, it has the cable axes of the device, on the cylindrical part of the glass are spirally arranged in a row of diametrically arranged holes, and the brush consists of separate cable segments, each of which is passed through two diametrically arranged holes and is connected with an axial cable, while the diameter of the elastic partition and smaller than the diameter of the brush to provide an annular gap between the surface of the pipeline and the partition, 2. The device according to claim 11, wherein the device is equipped with a capsule with a radioactive isotope to determine its location in the pipeline. Aa Editor M.Petrova Compiled by E. Strugalsky Tehred m, Hodanich Proofreader A. Zimokosov Order 3902/10 Circulation 540 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 FIG 2