SU1706732A1 - Device for cleaning external surface of pipelines - Google Patents

Abstract

The invention relates to equipment for building pipelines, in particular, devices for removing snow, ice and soils from the surface of pipes during welding of pipelines, and improves the quality and productivity of cleaning by cleaving and removing disparate cleaning products from the cleaning area. The rotor of the device is provided with parallel disks, and the cleaning elements are made in the form of a set of flat washers having angular grinding along the periphery and mounted for rotation on an axis fixed between the said rotor disks. 1 hp ff, 2 ill.

Description

The invention relates to equipment for pipeline construction, in particular, devices for removing snow, ice and soils from the surface of pipes during welding of pipelines.

The aim of the invention is to improve the quality and productivity of cleaning by cleaving and removing dissimilar cleaning products from the cleaning zone.

FIG. 1 shows a device for cleaning the external surface of pipelines, a general view; in fig. 2 — node I in FIG. one.

The device for cleaning the outer surface of the pipelines consists of a body including a frame 1 with two lower semi-bodies and two upper semi-bodies 2 fixing the drive hollow crown 3 in the anti-friction liners 4.

On axis x 5, in the drive-end crown 3, the disks 6 are mounted with the possibility of radial movement in the grooves, which are made with their center of gravity shifted to the side,

opposite to the fixing point of the cleaning elements 7. The latter are fixed on the fingers 8, which are provided with the disks b, and represent a set of flat washers with a sharpening along the periphery. To return the discs to the initial position, the device is equipped with flat return springs 9. Crown 3 and discs 6 have windows for passage through the device of the cleaned pipeline 10.

The device works as follows.

The pipe 10 is fed into the cavity of the drive hollow crown 3. When the motor is turned on by means of a V-belt transmission (Fig. 1, not shown), the rotation of the drive hollow crown 3 is transmitted. When the drive hollow crown 3 is rotated, fingers 5 communicate rotation of the disks 6. discs 6 in the direction opposite to the attachment point of the cleaning elements 7, and the presence of grooves in the discs

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b, the disks 6 are radially moved by the fingers 5 of the drive hollow rim 3. The cleaning elements 7 are pressed against the cleaned surface of the pipeline 10 and make a running motion along it. After the cleaning elements 7 interact with the surface being cleaned, the pipe 10 is moved in the axial direction. Thereby, the outer surface of the pipeline 10 is cleaned from snow, ice and pollution. At the same time, flat washers of cleaning elements 7 sharpened on the periphery split the layer of material being cleaned, thereby providing exfoliation of snow, ice and soil particles from the pipe 10 surface. with washers, crushed there by lateral conical surfaces of peripheral sharpening of adjacent washers.

When speeding the cleaning elements 7 on the surface of the pipeline 10, the first ones rotate at a high speed, which means they realize the throwing effect of the particles of the layer being cleaned, which falls into the zone formed by sharpening adjacent washers. For this, the drive hollow rim 3 is provided with cut-out windows (Fig. 1) in the attachment zone of the cleaning elements 7, through which the cleaned layer is removed from the cavity of the rim 3.

In addition, for the case if the layer to be cleaned is heterogeneous in its composition, free fastening is provided on the axles 8 of each of the washers, which allows self-regulation of the rotational speeds of each of them. For example, if in three adjacent triangular zones A, B, C (Fig. 2) there are particles of ice, soil, snow, respectively, then simultaneously with splitting and crushing of each of the cleaned beds, the self-regulation of the neighboring washers occurs, as it has the greatest adhesion to the material of the washers, while the throwing of the material and beyond the four considered washers is carried out with its speed of rotation of the cleaning elements for each component of the layer being cleaned.

Thus, during operation of the device, the cleaning elements 7 are run around the pipeline 10 simultaneously, cleaving and crushing the cleaned

layer and throwing of homogeneous and heterogeneous components of the layer being cleaned due to self-regulation of the speed of material throwing by washers.

After the end of the cleaning process by turning off the drive, the drive hollow rim 3 is stopped. Under the action of the return springs 9, the discs 6 return to their original position. A new conduit 10 is fed into the device cavity and the cleaning process is repeated.

The device has better performance compared with the prototype due to the provision of

removing dissimilar cleaned material from the rotor cavity during the cleaning process and increasing the service life of the cleaning elements (by replacing the friction effect of the cleaning elements with the rolling-in).

It was established experimentally that the angles of sharpening of the washers of the cleaning elements 7 along the periphery (the angle between the conical surfaces of the washers) provided that

Claims (2)

1. A device for cleaning the outer surface of pipelines, comprising a rotor including a drive hollow crown, in which sets of cleaning tools are mounted parallel to its longitudinal axis rotatably around their axes, characterized in that, in order to improve the quality and productivity of the cleaning process splitting and removal of dissimilar cleaning products from the cleaning zone, it additionally contains discs mounted in the hollow rim with the possibility of radial movement. the crown axis, and the set of cleaning tools is made in the form of flat washers, each of which has a double-sided symmetrical angular sharpening on the periphery, and is fixed rigidly in the disks between them. 2. The device according to claim 1, characterized in that the drive hollow crown and 5 disks have windows for removing cleaning products. Csj x cm CO G- CD O Gfo FIG. I