SU1409350A1 - Plant for cleaning tubes - Google Patents

Abstract

The invention relates to the technique of washing and cleaning pipes and provides an increase in the quality of cleaning and reliability of operation when an emergency stop of a cleaning piston in a pipe. The installation contained (it was installed on the bed catchers with seals in the washing heads. In the first head there was a cleaning piston with cuffs and a means of fixing the extreme position) 1 and a cleaning piston. The installation has a means of creating a water hammer in the working area, installed on the washing fluid supply system from the side of the second cleaning head, which interacts with the washing seat switching mechanism. This solution ensures reliable operation of the installation during an emergency stop of the cleaning piston in the pipe. 4 il. with

Description

her

po

ate

The invention relates to the technique of washing and cleaning long pipes and can be used in the oil, gas, chemical, and oil refining industries, as well as in repair facilities and in machine building.

The purpose of the invention is to improve the quality of cleaning and the operation of the emergency stop of the cleaning piston in the pipe.

FIG. 1 shows the installation of a, l pipe cleaning, general view; in fig. 2 - the same, top view; in fig. 3 - the node in FIG. one; in fig. 4 — node II in FIG. one.

The installation contains an internal oqiiCTKH unit 1 and washing unit, an external washing and cleaning unit 2, and the internal cleaning and washing unit 1 consists of a frame 3, a rail track 4, and a left-hand part 5 of the washing unit 1, including a drive in the form of a cylinder 6, the first washing head 7 with sealing elecritis 8. In the washing head 7 there is a piston 9 for cleaning in} the inside of the pipe surface. The left part 5 of the washing unit 1 further comprises a pipeline 10 for supplying the washing liquid, means for fixing the leftmost position of the piston, for example, the limit switch 11, the washing head 7 is placed on the frame 12 of the carriage 13 moving along the axis of the pipe 14. In the opening of the washing head 7 there is an extension Part 15 is a safety device for orientation of the pipe when installed in the head 7, providing fixation of pipes from different initial positions. Adjusting the height of the frame 12 of the carriage 13 depending on the diameter of the pipes is carried out by an adjusting screw 16. The pipeline 10 supplies the washing liquid to the internal cavity of the pipe. The washing head 7 is supplied to the pipe end and withdrawn by the pneumatic cylinder 6. The opposite end of the pipe is fixed in the washing and cleaning unit of the inner surface 1, it is provided by the right side 17 of the washing unit 1 consisting of a washing head 18 with a seal 1 m with an element 19 of a pipe bend 20, a swivel 21 of a tilting lever 22. Rotate the washing head 18 relative to the frame of the carriage 24, the head is supplied to the end of the pipe 14 and its discharge is carried out by the pneumonia

ten

20

25

thirty

40 45 hl

93502

Pindrom 23. The supply of washing liquid into the internal cavity is made roughly through a swivel 21 and a pipe bend 20.

In the opening of the washing head 18 there is also an expanding part 25 having a similar purpose as in the head 7. A special tool for cleaning the inner surface of the pipe, which is a piston 9, is made of an elastic material, for example rubber with corrugations on the outer surface, and can be moved inside the pipe reciprocally by the action of a washing liquid. Switching the flow of fluid to change the direction of movement of the piston of the axle is controlled by, for example, a limit switch 11 located in the unit 5, as well as means for creating a hydraulic shock and switch 27 for moving the fluid flow installed in the hydraulic system for supplying fluid. The means for moving the pipe 14 comprises transport supports 28 having rollers 29 which are installed with the possibility of adjusting their angle of inclination relative to the axis of the pipe being processed.

When leaving the inner wash unit 1, the tube 14 is clamped by the device 30, which prevents the tube 14 from slipping when moving to the outer wash unit 2 and cleaning. The device 30 is made, for example, in the form of a roller mounted on a pneumatic cylinder rod (not shown).

The external washing chamber 2 is equipped with brushes for cleaning the outer surface of the pipe and nozzles for supplying washing liquid.

The installation is also equipped with an accumulator 31, which is intended for accumulating and automatically alternating movement of pipes, dumping carts 32 of clean pipes and a pump installation 33 for supplying detergent solution 34 to nodes 1 and 2. The stop 35 is intended to fix the end of the cleaning process and issue a command the dumper 32.

35

The process of cleaning and washing pipes as follows.

From the accumulator 31, the pipe 14 enters the transport rollers 28, which at this moment are stationary in the node 1 of the internal washing and cleaning. Through the lever 21 and pipe elbow 20 with a switch. The piston presses the end switch, sends, switching the flow, under the action of pressure, the liquid moves to the place of origin, where in the case of a hundred it again appears hydraulically and the 1 SCL can repeat until

of the pneumatic cylinder 23, the washing head 13 is supplied to the end of the pipe and the right end of the pipe is sealed by means of the element 19.

Next, the left end of the pipe is sealed by means of the device 5. In this case, the head 7 moves along the axis of the pipe when exposed to the pneumatic cylinder 6, orients the pipe in JQ of the expanding part 15 of the head 7 and seals the element 8, which is, for example, a rubber ring . In the process of moving the pipe 14, when the unit 5 is subjected to it, from the axially displaced direction, the pipe is finally oriented and fixed in the heads 7 and 13. Before starting the operation, the piston 9 is in the first washing head 7. In 20, the internal cavity of the pipe is through line 10 under pressure, washing liquid is pushed, pushing and moving the piston 9 up to the stop into the bottom of the bore of the head 18. At that, the pressure in the hydraulic means of the transport supports

thirty

The system (pipeline 34) is increased and, by means of creating a hydraulic shock 26, the switch 27 for the movement of the fluid flow, which is a zolotnik, is activated. central distributor with electromagnets.

The flow reverses direction and pushes the piston 9 in the opposite direction to the washing head 7, where the limit switch 11 is activated, fixing the leftmost position of the piston and transmitting the signal to the fluid flow control switch 27. At the same time, the washing-cleaning cycle of the inner surface of the pipe is repeated.

In the event that when the piston moves from the first washing head with the limit switch to the second, it stops in the pipe, the pressure of the working fluid increases sharply, a hydraulic shock occurs in the cavity of the pipe. The hydraulic impacting means 26 is triggered if the pressure rises higher than the adjusted one, and the flow direction of the fluid is switched.

The fluid presses on the piston from the opposite side and moves it to the first washing head with the final

40

45

until the piston strikes the screw.

After cleaning the innermost part of the pipe, parts 5 and 17 are knocked down and, using transports 29, which turn on, radiate a rotational movement and go to ki 2, where glasses are cleaned and washed outside the pipe pipeline 34 from the pump novki 33.

After washing outwardly, the tube moves up to the stop.

29 and a dumper 32 on the rack for external inspection of flaw detection. The invention to improve the quality of the model and the operation of the device.

Claims (1)

Formula invented The cleaning unit is equipped with tubular seals installed on the beds, baths in the washing heads, of which the cuff is cleaned and the last position of the piston is cleaned in it, the washing supply system and the washing fluid supply mechanism connected with it so as to improve the quality of operation in the event of an accident when the cleaning porsch stops, it is additionally equipped with a hydraulic zone that is installed on the supply of washing liquid from the second washing head and joint Lowland switching the washing liquid. a switch. The piston presses on the end switch end, the last cp.i-battles, switching the flow, the piston under the pressure of the fluid, the conn moves to the initial stop where the hydraulic shock again occurs if it stops, and the SCLC can be repeated until then. vehicle support Q with 0 5 vehicle support legs 0 0 five until the piston punches the stopping point. After cleaning the inner surface of the pipe, parts 5 and 17 of the assembly are retracted and, with the help of transport rollers 29, which are turned on, the coarse receives a rotational-translational motion and is directed to the washing chamber 2, where the cleaning of the outer surface and washing pipes is carried out fluid supplied through the pipeline 34 from the pumping unit 33. After washing, the outer surface of the pipe moves to the stop 35-. 28 and the rollers 29 and the diverter 32 is applied to the rack for external inspection and inspection. The invention of positol is to improve the quality of the model and the nad- “I1) S1 of the operation of the device. Invention Formula A pipe cleaning unit containing pipe catchers with seals mounted on the frame, mounted in washing heads, one of which has a cleaning piston with cuffs and means for fixing in it the extreme position of the cleaning piston, the washing fluid supply system and the associated mechanism switching the supply of the washing liquid, which is associated with the fact that, in order to improve the quality of cleaning and reliability of operation when an emergency stop of the cleaning material in the pipe, it is additionally equipped with a means of creating a hydraulic impact in the working area, installed on the washing liquid supply system from the side of the second washing head and interacting with the switching mechanism of the washing liquid. J4 Sje ETNOG ES ES 29 Z8 OD J - flfflll Fig218 / 9 26 Compiled by A. Fomicheva Editor M. Nedoluzhenko Tehred L. Oliynyk Corrector M. Demchik Order 3437/11 Circulation 565 VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab, 4/5 mf ( 27 (needles Subscription