SU1258514A1 - Arrangement for pulsed cleaning of the internal surface of pipeline - Google Patents

Description

The invention relates to the cleaning of pipes with devices moving along the pipes from the inside using a pneumatic or hydraulic actuator, and can be used in the energy and chemical industry, as well as in communal services and land reclamation.

The purpose of the invention is to increase productivity, reliability and quality of cleaning.

FIG. 1 shows the proposed device, a longitudinal section; in fig. 2 shows section A-A in FIG. one,

The device for pulsed cleaning of the inner surface of the pipeline has a housing 1 with inclined reactive nozzles 2 located evenly around the circumference with the center n-a of the device axis. The housing is connected to the thread with the nozzle 3 for supplying the working ax. Outside the pipe 3 between the thrust collar 4 and the body

1 is mounted for rotation of a jet jet interrupter made in the form of a ring 5 having at least two symmetric reaction nozzles b arranged tangentially to the cross-sectional plane and communicated with an annular groove 7 made inside the ring 5 and (or) outside the nozzle 3 The groove 7 is communicated by channels 8 with the cavity of the nozzle 3. Due to the location (the burning of the jet nozzles 6 in the diametral plane of the rings 5, the latter does not experience the continuation of the shearing forces from the flow of the working agent through it, which increases the reliability of the nozzle and simplifies its manufacture. The outer diameter of the ring 5 is smaller than the diagonal circle passing through the points formed by the intersection of the working agent jets flowing from nozzles 2 and 6. Outside the housing 1 can be hard the reflector tO of the working agent jets emanating from the reactive nozzles 6 fixed by screw 9. The working surface of the reflector to, made in the form of a side surface of a truncated cone, allows, if necessary, directing the jets of the working agent from the nozzles 6 under any Adan angle to the surface of the pipeline being cleaned, which prevents, for example, the joints of municipal and melioration pipelines from paspjnueHHH are radial

S

0

five

0

five

0

S

0

five

jets working agent and increases the traction force of the device.

The device works as follows.

The working agent is fed through the nozzle 3 into the internal cavity of the housing 1 and flows out of it through the reactive inclined nozzles 2, due to which the device is connected with the pulling force, and the jets of the working agent clean the sediment from the walls of the pipeline. At the same time, the working agent from the cavity of the nozzle 3 through the channels 8 enters the rings, a groove 7, from which it flows out through the jet nozzles, 6, while the ring 5 communicates the torque around its axis, resulting in jets of the working agent flowing out of the jet nozzles 6 , alternately intersect all the jets of the working agent emanating from the reactive inclined nozzles 2, thus ensuring the pulsed nature of the effect of the jets of the nozzles 2 on the sediments. At the time of intersection of the trajectories of the jets of the working agent It changes its initial direction, but the pulling force of the nozzle does not change, due to the fact that the impulse of the working agent jets is not created by mechanical alternating throttling of all the input sections of the reactive inclined nozzles 2, but by means of hydraulic alternating interaction with them jets of a working agent emanating from the rotation of the clicked ring 5 outside the internal cavity of the device, in the latter a more favorable hydraulic mode is achieved, as a result of which the pressure loss is reduced working agent and, as a result, its performance increases.

In the case of using a reflector tO in the device, the working agent jets emanating from the jet nozzles 6 in the intervals between the intersection tix, the worker’s jets, the agent from the nozzles 2, alternately interact with the reflector to, they are directed at a given angle to the surface of the pipeline being cleaned and perform the role of preliminary cleaning, at the same time increasing the pulling force of the nozzle.

The use of the invention improves the performance and reliability of the device, and also improves the quality of cleaning.

6

Compiled by E.Strugalsky Editor O.Golovach Tekhredl.Serdyukova Corrector O.Lugova

Order 5060/9 Circulation 571 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing department, Uzhgorod, st. Project, 4

fpite. 2

Claims (2)

1. DEVICE FOR PULSED CLEANING OF THE INTERNAL SURFACE OF A PIPELINE, comprising a hollow body with reactive inclined nozzles, the outlet openings of which are evenly spaced around a center on the axis of the device, a pipe connected to the housing for connecting the working agent supply hose and a jet breaker, t h “a reactive FTCSSCT П ^ * ⁶⁰ outlet openings on the ring from the tangential plane of the transverse wall of the nozzle, in order to increase productivity, reliability and quality of cleaning, the jet stream interrupter is designed as rotationally mounted on the nozzle behind the nozzle nozzles in the section and channels into for the passage of the working agent to the tangential nozzles. 2. The device pop. ^ characterized in that a reflector is fixed to the housing with a working surface in the form of a lateral surface of a truncated cone for interaction with jets flowing from the nozzles of the ring. Figure 1 ι