CN215950769U

CN215950769U - Leak source repairing device for pipeline

Info

Publication number: CN215950769U
Application number: CN202121695420.8U
Authority: CN
Inventors: 李伟; 高东海; 张龙
Original assignee: Daqing Haotian Xinda Technology Co ltd
Current assignee: Daqing Haotian Xinda Technology Co ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2022-03-04
Anticipated expiration: 2031-07-23

Abstract

The utility model provides a leak point repairing device for a pipeline. Relates to the technical field of oilfield pipeline repair. The outer side of the inner pipe is sleeved with an expansion pipe, a small-upper-small-lower-large conical hole in the bottom of an inner hole of the expansion pipe is matched and connected with a bottom conical head of the inner pipe, a strip-shaped seam with uniform distribution is formed in the bottom of the expansion pipe, a locking nut is arranged on the upper end face of the expansion pipe, a base plate is arranged at the lower end face of the locking nut in the outer side of the expansion pipe in a sleeved mode, a sealing ring is arranged on the lower portion of the base plate, the upper end of the locking nut is in threaded connection with the inner pipe, and the top of the inner pipe is connected with a ball valve through a conversion joint. The utility model has the following beneficial effects: through setting up the carbide strip as the cutting edge, bore the leakage point, utilize the expand tube to expand, through the sealing washer with the sealed stifled death of leakage point, set up ball valve and crossover sub coupling hose with the liquid drainage of operation in-process outflow to the assigned position, the liquid of leaking is not arranged outward during the operation, the non-staining environment, can not splash and assault the injury operating personnel yet.

Description

Leak source repairing device for pipeline

The technical field is as follows:

the utility model relates to the technical field of oilfield pipeline repair, in particular to a leak point repairing device for a pipeline.

Background art:

the oil gas pipeline is mainly used for conveying fluid media such as oil, gas and water, the oil gas pipeline is influenced by corrosion, scouring and vibration of the fluid media in the process of conveying the fluid media, the pipeline can be perforated, and the problem of fluid media leakage can be caused.

The utility model has the following contents:

in order to solve the problems, the utility model provides a leak point repairing device for a pipeline.

The technical scheme of the utility model is as follows: the utility model provides a leak source repair device for pipeline, includes the inner tube, and the inner tube outside cover has the expand tube, and the big end down's of taper hole and the bottom conical head cooperation of inner tube of expand tube hole bottom are connected, and the bar seam that has the equipartition is opened to the bottom of expand tube, and the expand tube up end is equipped with lock nut, and lock nut cover is equipped with the backing plate at the lower terminal surface lower extreme in the expand tube outside, and the backing plate lower part is equipped with the sealing washer, lock nut upper end threaded connection inner tube, and the ball valve is connected through crossover sub at the inner tube top.

The excircle of the lower end of the expanding tube is in a conical shape with a large upper part and a small lower part, and hard alloy strips are embedded in the same side surface of a strip-shaped seam of the conical section.

The adapter comprises an upper section pipe and a lower section pipe, wherein the upper section pipe and the lower section pipe are connected together through a bearing, a retainer ring and a sealing element to form a sealing structure capable of rotating mutually.

The top excircle cutting of inner tube is square head structure.

The inner pipe and the expanding pipe are connected through a sliding flat key.

The utility model has the following beneficial effects: through setting up the carbide strip as the cutting edge, bore the leakage point, utilize the expand tube to expand, through the sealing washer with the sealed stifled death of leakage point, set up ball valve and crossover sub coupling hose with the liquid drainage of operation in-process outflow to the assigned position, the liquid of leaking is not arranged outward during the operation, the non-staining environment, can not splash and assault the injury operating personnel yet.

Description of the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a bottom view of the expansion tube of the present invention;

FIG. 3 is a schematic structural view of the adapter of the present invention.

In the figure, 1-an inner pipe, 2-an expansion pipe, 3-a locking nut, 4-a backing plate, 5-a sealing ring, 6-a sliding flat key, 7-a strip seam, 8-a hard alloy strip, 9-a square head, 10-a conversion joint, 11-a ball valve, 12-an upper pipe and 13-a lower pipe.

The specific implementation mode is as follows:

the utility model will be further described with reference to the accompanying drawings in which:

shown by fig. 1 with fig. 2 ~ 3, a leak source repair device for pipeline, including inner tube 1, 1 outside cover of inner tube has expand tube 2, the big end down's of the big end up taper hole of 2 hole bottoms of expand tube is connected with the bottom conical head cooperation of inner tube 1, open the bottom of expand tube 2 has the bar seam 7 of equipartition, 2 up end of expand tube are equipped with lock nut 3, 3 covers of lock nut are equipped with backing plate 4 at the lower terminal surface lower extreme in the 2 outsides of expand tube 4, 4 lower parts of backing plate are equipped with sealing washer 5, 3 upper end threaded connection inner tubes 1 of lock nut, 1 top in inner tube is through crossover sub 10 connection ball valve 11.

The excircle of the lower end of the expanding tube 2 is in a conical shape with a large upper part and a small lower part, and a hard alloy strip 8 is embedded in the same side surface of a strip-shaped seam 7 of the conical section.

The adapter 10 comprises an upper section pipe 12 and a lower section pipe 13, the upper section pipe 12 and the lower section pipe 13 are connected together through a bearing, a retainer ring and a sealing element to form a sealing structure capable of rotating mutually, when the lower section pipe 13 rotates along with the inner pipe 1, the upper section pipe 12 can not rotate, and the situation that the hose connected to the upper part of the ball valve 11 is knotted and the cutoff influence is caused to be discharged outwards is prevented.

The top excircle of the inner pipe 1 is cut into a square head 9 structure.

The inner pipe 1 and the expansion pipe 2 are connected through a sliding flat key 6, so that the inner pipe 1 and the expansion pipe 2 can move up and down and cannot rotate mutually, when in actual use, the ball valve 11 is opened, the bottom of the expansion pipe 2 is pushed against the position of pipeline leakage, a tool is utilized to clamp the square head 9 of the inner pipe 1 to rotate, the inner pipe 1 and the expansion pipe 2 rotate, the conical hard alloy strip 8 at the front part of the expansion pipe 2 plays the role of a cutting edge, a hole is drilled at the pipeline leakage point, the expansion pipe 2 can extend into the pipeline, then the inner pipe 1 is fixed and cannot rotate, the locking nut 3 rotates, the locking nut 3 moves downwards, the inner pipe 1 moves upwards relative to the expansion pipe 2, the bottom of the expansion pipe 2 is opened, then the backing plate 4 presses the sealing ring 5 to seal the periphery of the leakage point, at the moment, the leaked liquid flows to a designated position through the soft pipe connected with the ball valve 11 to prevent the leakage from causing pollution, and after the sealing is completed, and closing the ball valve 11 to finish the repair operation.

The reaming of the expanding tube 2 can also cut off the corrosion part of the pipeline leak point accessory, thereby being beneficial to the positioning of the bottom of the expanding tube 2, improving the clamping force of the locking nut 3 and having better sealing performance of the sealing ring 5.

Through setting up the carbide strip as the cutting edge, bore the leakage point, utilize the expand tube to expand, through the sealing washer with the sealed stifled death of leakage point, set up ball valve and crossover sub coupling hose with the liquid drainage of operation in-process outflow to the assigned position, the liquid of leaking is not arranged outward during the operation, the non-staining environment, can not splash and assault the injury operating personnel yet.

Claims

1. The utility model provides a leak source repairing device for pipeline, includes inner tube (1), its characterized in that: the outer side of the inner pipe (1) is sleeved with an expansion pipe (2), a small-upper-small-lower-large conical hole in the bottom of an inner hole of the expansion pipe (2) is connected with a bottom conical head of the inner pipe (1) in a matched mode, uniformly distributed strip-shaped seams (7) are formed in the bottom of the expansion pipe (2), a locking nut (3) is arranged on the upper end face of the expansion pipe (2), a base plate (4) is arranged at the lower end face of the outer side of the expansion pipe (2) in a sleeved mode of the locking nut (3), a sealing ring (5) is arranged on the lower portion of the base plate (4), the upper end of the locking nut (3) is connected with the inner pipe (1) in a threaded mode, and the top of the inner pipe (1) is connected with a ball valve (11) through a conversion joint (10).

2. The leak point repairing apparatus for piping according to claim 1, wherein: the excircle of the lower end of the expanding tube (2) is in a conical shape with a large upper part and a small lower part, and a hard alloy strip (8) is embedded in the same side surface of the strip-shaped seam (7) of the conical section.

3. The leak point repairing apparatus for piping according to claim 1, wherein: the adapter (10) comprises an upper section pipe (12) and a lower section pipe (13), wherein the upper section pipe (12) and the lower section pipe (13) are connected together through a bearing, a retainer ring and a sealing element to form a sealing structure capable of rotating mutually.

4. The leak point repairing apparatus for piping according to claim 1, wherein: the top excircle of the inner pipe (1) is cut into a square head (9) structure.

5. The leak point repairing apparatus for piping according to claim 1, wherein: the inner pipe (1) and the expanding pipe (2) are connected through a sliding flat key (6).