SU1692686A1 - Device for cleaning of internal surface of pipe lines from depositions - Google Patents

Abstract

The invention should be used in hydromechanization for cleaning pipelines from silting, for example, in hydraulic pressure transport of rocks. The purpose of the invention is to improve the quality and productivity of cleaning due to additional turbulence in the working environment by ensuring the random rotation of the cleaning elements relative to their axes. When a section of the silted pipeline 1 is silted up with rock particles 13 from the charging pipe 6, the volume body 11 is squeezed when the valve 7 is opened into the overflow chamber 10, where body 11 is picked up by the pressure flow of water from pipeline 3 pumped from the main pipeline 1 by pump 2 The main flow of the main pipeline 1 When meeting with particles 13, the volume body 11, which has eroding channels 12, rotates around its axis, blurs the silting section with a flowing stream, weighing and transferring it into the vertex The pipeline section is 1 particles of 13 breeds. 1 il. cl

Description

The invention relates to cleaning and can be used in hydromechanization for cleaning pipelines from siltation, for example, during pressure hydraulic transportation of rocks.

The purpose of the invention is to improve the quality and productivity of cleaning due to additional turbulization of the working environment. : · '· ·: ·.

The drawing shows a diagram of a device for cleaning pipelines.

The device contains a main pipe 1 for providing pressure transportation of the pulp pumped by the pump 2, a bypass pipe 3 with valves 4 and 5 for bypassing a part of the liquid phase from the pipe 1, a charging pipe 6 with a valve 7, a removable locking cover 8 and a spring 9 attached to it. placed between the valves 4 and 5 and connected by the pump to the pipeline 3, the chamber 10 for pre-fabricated volumetric spherical. bodies 11 with through channels non-intersecting inside the body 11 channels 12. Particle 13 denotes · molecular species

The device operates as follows.

During siltation of a site (during soil hydrotransport) in a trunk pipeline 1 by particles 13 of rock from a pre-charged charging pipeline 6 by several volumetric bodies 11 (with a density lower than the density of water made, for example, of wood, plastic, etc.) with uniformly distributed on the surface of the through channels non-intersecting inside the body 12, they are squeezed out in a metered way (depending on the siltation power) when the valve 7 is opened using a spring 9, mounted on a removable locking cover 8, which blocks the piping 6 on the outside of its end, the volumetric bodies 11 into the bypass chamber 10. Then, by closing the valve 7 on the charging pipe 6 and opening the valves 4 and 5 on the bypass pipe 3 in series, part of the water or pulp from the main pipe 1 is passed into pipeline 3, squeezing the volumetric body 11 from the chamber 10 into the pipeline 1, where the body 11 is picked up and moved by the main stream of water or pulp in the pipeline 1 under the pressure of the pump 2. Moreover, the movement of the volumetric body 11 is carried out as due to excess phenomenon at its front surface, and due to the difference in pressure created Mykh suspended in the water body 11 in the cross section of duct 1 and issuing from the channels 12 of the body 11 of water jets. When meeting on a silted section of the pipeline 1 of the body 11 with rock particles 13, water jets flowing through the channels 12 of the body 11 having an additional dynamic pressure are expelled from the zone of the silted section of the rock particles 13 due to the rotation of the body 11 around its axis and the difference in water pressure along the section of the pipeline 1. Particles 13 of rocks are weighed and carried away in the upper section of the pipeline 1 until the erosion of the silted area is completely eroded.

At the beginning of the erosion of the silted area, the valves 4 and 5 are closed. Subsequent cases of siltation of pipeline 1 are eliminated in the same way: by dosing into the pipeline 1 from the charging pipeline 6 through the bypass chamber 10 of the following volumetric bodies 11 located in the pipeline 6 until the charging batch of bodies 11 is completely withdrawn from it.

Volumetric bodies 11 (as they exit the main pipeline 1) are returned to the place of the charging pipeline 6. Then, a batch of volumetric bodies 11 is laid inside the pipeline 6 and again lock the chamber 10 with a removable cover 8 using a spring 9.

Technical and economic advantages of the device compared to the well-known are as follows.

The specific energy consumption for erosion and the movement of silted rocks in the pipeline is reduced due to additional erosion energy, i.e. additional dynamic pressure of the jets flowing from the openings of the bulk heat fluids in the silted section, due to the concentration of the erosion flow energy in the upper layers along the cross-section of the pipeline, and due to the additional energy of rotation of the voluminous bodies on the silted section and reduced hydraulic losses during erosion of the silted section of the pipeline.

Pipeline wear due to redistribution during erosion of the silted portion of rock particles in the upper layers along the cross section of the pipeline is reduced.

There is a possibility of emergency elimination of silted sections of the pipeline and bringing them to the nominal mode of hydrotransport without technological downtime.

Claims (1)

Claim A device for cleaning the inner surface of pipelines from deposits, made in the form of a spherical body with through channels, characterized in that, in order to improve the quality and productivity of cleaning, the spherical body is made of material with positive buoyancy, and the channels are made disjoint.