SU1013002A1 - Apparatus for washing vessels - Google Patents

Abstract

1. A DEVICE FOR CLEANING THE INTERNAL SURFACE OF THE PIPELINE, containing a housing coaxially mounted on the shaft and connected with it, “-ESHETH I AM ATATLOTEHAMMY 6 | 1 WDYAGT (; improving the performance and quality of cleaning, the device contains an additional impeller mounted on the shaft so that it can rotate relative to it, the shaft between the impellers being made in the form of a knee, and the additional turbine is provided with a rim on which the cleaning tools are fixed 2. The device according to claim 1, that is, so that the rim is made spherical 00 00

Description

The invention relates to devices for cleaning the internal surface of pipelines.

A device for cleaning the inner surface of a pipeline is known, comprising a working body in the form of a metal brush connected to a turbine, a conical fairing, guide vanes and a screw head til. an impeller associated with it, on the shaft of which metal brushes and chisels made in the form of hook-shaped metal strips are successively fastened n each end of which is pivotally secured to the turbine shaft 21-ki

However, this device is ineffective with a large degree of clogging and blockage of the pipeline with thick deposits. As the velocity plot shows (Fig. 1), the cutting speed — the circumferential cutter speed on the pipeline axis — is zero, increased to the maximum at the walls. The cutting speed can be determined by the formula

VsixJR with "| s,

uj UJ is the angular velocity of the incisors, R is the radius of the incisor's distance from the axis of rotation, see

Due to the low cutting speed in the area near the axis of the pipeline, the performance of the device during the removal of large obstructions will also be insignificant.

The aim of the invention is to improve the performance of the device and the quality of cleaning.

This goal is achieved in that the device for cleaning the inner surface of the pipeline, comprising a housing coaxially mounted on the shaft and associated turbine and cleaning elements, comprises an additional turbine mounted aa rotatably with respect to the shaft, and the shaft between the turbines made in the form of a knee, and the additional impeller is equipped with a rim on which cleaning tools are attached, and is spherical.

FIG. 1 and 2 depict diagrams of a cutting speed distributor over a section of known and proposed pipelines, respectively ;; in fig. 3 - the proposed device, / cut.

The device body 1 with guide vanes 2 rests on the front and rear centering supports 3 and 4, which are angled to one another.

An impeller b is fixed on the straight part of the shaft 5, and a freely rotating impeller 7 on the knee of the shaft.

Cleaning elements - cutters 8 in the form of staples with sharp edges, notches, brushes 9 or other structures, in

depending on the hardness of the deposits, attached to the rim 10.

-. - The device works in the following way. The flow of the gas or liquid transported through the pipeline is directed by guide vanes 2 installed at a certain angle to the axis of the device.

Moreover, due to the resistance and pressure drop before and after the device, it also moves in the direction of the pipeline axis.

Due to the fact that the shaft 5 is out-}, filled in the form of a knee to the axis. The turbines intersect, the cleaning elements; The cops make a complex movement, cutting off the sediments that have accumulated in the Pipeline, while simultaneously clearing the part of the stream passing the S gap between the rim and the wall pipe. Shear contamination is carried away by the stream in front of the device. The pipelines present in the pipeline inhibit the forward movement of the device. As a result of this, the pressure drop before and after the device increases, which increases the turbine power and speed

cleaning up.

If pipeline contamination is negligible or absent, the rate of translational movement of the cleaning device increases, approaching the flow rate in the pipeline.

Economic efficiency from the application of the proposed device

 industry, due to the improved quality of cleaning pipelines and an increase in the performance of the device by 30-40% compared with the known device

for cleaning due to uniform distribution of the cutting speed of the cleaning elements over the cross section of the contaminated pipeline.

Vf.V

3 10 S Chig 3 7

Claims (2)

1 / DEVICE FOR CLEANING THE INTERNAL SURFACE OF THE PIPELINE, comprising a housing coaxially mounted on the shaft and connected with it a turbine, a breaker and cleaning tools, so that, in order to increase productivity and quality of cleaning, the device contains an additional turbine mounted on the shaft with the possibility of rotation relative to it, and the shaft in the area between the turbines is made in the form of a knee, and the additional turbine is equipped with a rim on which the cleaning tools are fixed. 2. The device according to π. 1, with the fact that the rim is spherical. 1