SU442858A1 - Device for cleaning the internal surface of pipelines - Google Patents

Description

one

The invention relates to the field of cleaning ventilation ducts.

A device for cleaning the internal surface of pipelines is known, comprising a housing with supports, mechanical cleaning elements, jet nozzles and a pipeline for supplying the working agent under pressure.

In order to provide a reciprocating movement of the device along the pipeline being cleaned, the proposed device for cleaning the dusky surface of the pipelines is equipped with a working agent flow switch, and the internal cavity of the reactive nozzle is separated by two solid chambers into two chambers, with the jet nozzle performing the role of support.

The mechanical cleaning element of the device is made in the form of a driving drum with cable segments attached to its outer surface along a helical line.

FIG. 1 shows the proposed device in longitudinal section; pas figs. 2 is a section along A-A in FIG. I; in fig. 3 is a section along BB in FIG. one; in fig. 4 shows a section along B-B in FIG. one.

The proposed device contains a sealed housing 1 with supports 2, mechanical cleaning elements, jet nozzles 3 and

pipe 4 for supplying the working agent under pressure.

The internal cavity of the jet nozzle is divided by a continuous partition 5 into two chambers 6 with outlets 7, each of which is connected to the switch 8 of the working agent flow through the distributing and distributing collectors 9 and 10 and the valve 11, while the jet nozzle acts as a support.

The conduit 4 is connected to the housing 1 by means of a turning device 12, which serves to prevent it from turning around its axis. The mechanical cleaning element is designed as a disposed

inside the movable head 13 of the drive drum 14 with cable segments 15 fixed on its outer surface along a helical line. The drum 14 is driven by the actuator 16 via the power supply cable 17.

The device works as follows. The device is introduced into the pipeline to clean it from dust (mainly with a compacted solid surface crust).

and compressed air is supplied through a conduit 4 connected by means of a turning device 12 to the housing 1. The latter through the valve 11 and the distributing manifold 9 flows through pipelines 18 and taps 7 into

jet nozzle 3.

3

The device is transported in the pipeline 19 due to the reactive force of air exiting at an angle from the openings of the nozzles 3 of the housing 1.

Simultaneously with the supply of compressed air into the housing, the movable head 13 and the drum 14 with cable sections 15 are actuated. The latter are scraped off and the dust that has settled around the perimeter of the conduit 19, which, together with the air, is removed by the fan and sent to the dust collector, is stirred up.

Then, the actuator 16 is turned off, and the valve 11 is switched to the supply of compressed air into the cavity of the nozzle chamber 3, and due to the reactive force, the device moves in the direction of the duct connector.

The proposed device is versatile, easy to manufacture and reliable in operation.

Subject invention

Claims (2)

1. A device for cleaning the internal surface of pipelines, comprising a housing with supports, mechanical cleaning elements, jet nozzles and a pipeline for supplying a working agent to a node with pressure, characterized in that, in order to ensure the reciprocating movement of the device along the pipeline being cleaned, it is equipped with a working agent flow switch, and the internal cavity of the jet nozzle is divided by a solid partition into two chambers, each of which communicates with a flow switch, wherein the jet packing acts as a support. 2. The device according to claim 1, characterized in that the mechanical cleaning element is made in the form of a non-drive drum with a fixed smoke line on its outer surface along a helix line with cable sections. I will air s / rolled W3 l BUT. FIG 2