SU1258516A1 - Arrangement for cleaning the cavity of pipeline - Google Patents

Description

The invention relates to the cleaning of hollow articles by devices moving along pipes from the inside, and can be used in land improvement for cleaning horizontal drainage systems as well as in public utilities.

The purpose of the invention is to increase the reliability and simplify the design of the device.

Pa, Figs. 1 and 2 depict a device in a pipeline with different operating modes} in Fig. 3 and 4, means for transporting pulp, a longitudinal section, in positions corresponding to the modes of operation of the device shown in Figs. 1 and 2; on fig.Z - section aa on fig.Z} on fig.b - section bb in figure 4.

The device for cleaning the cavity of the pipeline has a nozzle nozzle 1 connected to a means for supplying a working agent (not shown) with a hose 2, and means 3 for transporting the pulp, having (Fig. 3) a power cylinder consisting of a fixed part — a hollow plunger 5; Installed on a rigid insert 6 connecting the ends of the hose 2 through the holes 7 in the rigid insert 6. The moving part 5 of the cylinder cooperates with the spring 8, abutting against the thrust washer 9. Under the action of the spring 8, the plunger 5 is pushed into the sleeve 4.

In a staggered order, flexible plates 10 and 11 are installed around the axis of the system, each of which is curved in an arc in the center plane. The slots formed between the petals 10 of the outer row are covered by the petals 11 of the inner row, since the width of the petal 11 is not less than the width of the gap between the petals 10 at the apex of the arc.

One end of the plate 10 and 11 is attached to the sleeve 4, and the other to the plunger 5. Fastening is provided by rings 12. Each row of plates can be made either from separate plates or in the form of a cylinder, in the middle of which there are slots. .

The device works as follows.

The device is introduced into the pipeline, with the rows of bent plates overlapping the cross section of the pipeline. Then through the hose 2 to the nozzle nozzle 1 serves working agent under pressure. Through the openings 7 of the rigid insert 6, the working agent enters the cavity of the sleeve 4, and the plunger 5, overcoming the resistance of the springs 8, moves to the right. At the same time (figure 4)

the plates 10 and 11 are rectified, the diameter of the device is reduced and it is transferred through the pipeline forward under the action of the reaction force of the jets emanating from the nozzle nozzle 1,

erosion and destruction of sediment in the cavity of the pipeline (figure 2).

After the nozzles of the nozzle 1 are advanced along the pipeline for the length of the section to be washed, the supply of the working agent is stopped. In this case (fig. 3), the plunger 5 under the action of the spring 8 is displaced into the sleeve 4, and the plates 10 and 11 again take a curved shape, overlapping the cross section of the pipeline. The device is then removed from the pipeline, while the means 3 for transporting the pulp removes

In the cavity of the pipeline being cleaned, high-consistency pulp together with large and medium sediment particles, and plastics, which are tight to the pipeline walls, form a layer of sediments adhering to the walls (Fig. 1).

The use of the invention allows to increase the reliability of the device due to the absence of articulated joints and to simplify its design by reducing the number of parts. The assembly of the device and its technical maintenance is also simplified.

12 3g

U / /// V //// A /////// ////// l / ////// l

U / ////// ///// 7 /////// 7 / // f Figure 1

U

 ,but

Fig.Z

7 6 C

/ 7

5 Yu Y2

Y ///// M /,

77U / U, / X7 ////// 7 / 7L

i

 SSSS: SS

/ vy C xW / vvwy v% vi

; 2222Z; i /: i: 2 / 2v f v v

5 Yu Y2

8B

Y ///// M /,

Y / // / W ff

r

 / Wt f jWU

b yssssss

Y ((

/////// 7 ////// 7 ///////.

: //; / X; / / 2

f

Y ((

f

/

12

Figm

A-A

FIG. five

Compiled by E. Strugalskm Editor Oh, Golovach Tehred L. Serdyukova Proofreader 0. Lugova

Order 5060/9. Circulation 571 Subscription

VNKIPI State Committee of the USSR

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

Production and printing enterprise, F, Uzhgorod, st. Project, 4

FIG. 6

Claims (1)

A DEVICE FOR CLEANING THE PIPELINE CAVITY, comprising a nozzle nozzle connected by a hose to the supply agent of the working agent, and means for conveying the pulp, including a power cylinder, the working cavity of which is in communication with the hose cavity, and the movable part interacts with the return spring, and elements associated with the cylinder overlap of the cross-section of the pipeline, characterized in that, in order to increase reliability and simplify the design, the elements for overlapping the cross-section of the pipeline are made in the form of at least in at least two rows in a checkerboard pattern around the axis of the device of flexible plates, each of which is curved in an arc in the diametrical plane, and the width of the plates of the inner row is not less than the width of the gap between the plates of the outer row at the top of the arc, this plate is connected at one end to the fixed part of the power cylinder, and the other with its moving part. ^ / 77/77 // /////// ^ / l 1 2 3? Figure 1 9IS89 1258516 2