CN213040075U

CN213040075U - Temporary plugging device for sea pipe

Info

Publication number: CN213040075U
Application number: CN202021872415.5U
Authority: CN
Inventors: 齐兵兵; 曲有杰; 徐桐; 齐芳芳
Original assignee: Shenzhen Offshore Oil Engineering Underwater Technology Co ltd
Current assignee: Cnooc Shenzhen Ocean Engineering Technology Service Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-04-23
Anticipated expiration: 2030-08-31

Abstract

The utility model relates to a temporary leaking stoppage device for a submarine pipeline, which comprises a pipe clamp detachably sleeved on the submarine pipeline, a positioning structure arranged on the pipe clamp to position a leakage opening on the submarine pipeline, a leaking stoppage structure arranged in the positioning structure to stop the leakage opening, and a pushing mechanism which can reciprocate towards the direction of the leakage opening and is arranged on the positioning structure to push the leaking stoppage structure into the leakage opening for leaking stoppage; the positioning structure is arranged in a hollow mode, and an observation port for observing the leakage stopping operation of the leakage stopping structure is arranged on the positioning structure; and the pipe clamp is provided with a positioning hole for positioning the leakage port and communicated with the positioning structure. The temporary plugging device for the marine pipe has the advantages of good plugging effect, visual and controllable operation mode and capability of saving a large amount of economic cost for maintenance of the marine pipe.

Description

Temporary plugging device for sea pipe

Technical Field

The utility model relates to a sea pipe maintenance technology, more specifically say, relate to an interim plugging device of sea pipe.

Background

Since the last 80 s offshore oil production, submarine pipelines were laid. Subsea pipelines are generally designed to have a life of about 30 years. In recent years, accidents of sea pipe damage are more frequent due to the long design and construction age of sea pipes, corrosion of pipelines, dragging of trawlers, falling of heavy objects and the like. Once the sea pipe is damaged, the sea pipe brings huge threats to the production of marine environment and oil and gas fields.

The main manifestation of corrosion damage to the marine vessel is the creation of a small circular hole at the surface of the marine vessel. Aiming at the sudden damage accident of the marine pipeline, the repair needs sufficient preparation work, including making a maintenance technical scheme, locking related equipment resources according to the scheme and the like. These preparation operations are time consuming and the sea pipe can only be shut down and wait during the preparation. The long-time production stoppage of the sea pipe causes huge loss of the oil-gas platform. At present, a temporary plugging tool for a marine pipe exists in China, and a tool for performing temporary plugging from the inside exists, but the plugging effect is not good, and more tools exist in the marine pipe, so that the internal medium conveying is influenced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in that, a modified temporary plugging device for submarine pipelines is provided.

The utility model provides a technical scheme that its technical problem adopted is: constructing a temporary leaking stoppage device for a submarine pipeline, which comprises a pipe clamp detachably sleeved on the submarine pipeline, a positioning structure arranged on the pipe clamp to position a leaking port on the submarine pipeline, a leaking stoppage structure arranged in the positioning structure to stop the leaking port, and a pushing mechanism which can reciprocate towards the direction of the leaking port and is arranged on the positioning structure to push the leaking stoppage structure into the leaking port to stop the leaking;

the positioning structure is arranged in a hollow mode, and an observation port for observing the leakage stopping operation of the leakage stopping structure is arranged on the positioning structure;

and the pipe clamp is provided with a positioning hole for positioning the leakage port and communicated with the positioning structure.

Preferably, the pushing mechanism includes a push rod disposed on the positioning structure and capable of pushing towards the leakage port, and a pressing plate disposed in the positioning structure and connected to one end of the push rod to press the leakage blocking structure into the leakage port.

Preferably, the locating structure comprises a hollow cylindrical body;

the observation port is arranged on the cylindrical body;

the push rod penetrates into the cylindrical body from the top of the cylindrical body.

Preferably, the cylindrical body comprises a top wall and a side wall arranged on the top wall and extending downwards;

the push rod penetrates into the cylindrical body from the top wall;

an opening communicated with the positioning hole is formed in one end, far away from the top wall, of the cylindrical body.

Preferably, one end of the push rod, which is far away from the pressing sheet, is provided with a screw rod which is connected with external equipment so that the external equipment drives the push rod to rotate or an operator operates the screw rod to drive the push rod to rotate;

the screw is in threaded connection with the push rod.

Preferably, the leakage stoppage structure comprises a plugging plug plugged into the leakage port to perform leakage stoppage.

Preferably, the plug is an elastomeric plug.

Preferably, the plug is in a conical frustum shape.

Preferably, the pipe strap includes the first pipe strap body that is the tile form, be the tile form and with the first pipe strap concatenation and the fixed sea pipe's of cooperation second pipe strap body.

Preferably, the pipe clamp further comprises a connecting assembly detachably connecting the first pipe clamp body and the second pipe clamp body.

Implement the utility model discloses an interim plugging device of sea pipe has following beneficial effect: when the temporary plugging device for the sea pipe is used, the pipe clamp can be detachably sleeved on the sea pipe and the positioning structure is positioned at the leakage opening on the sea pipe, and then the plugging structure is pushed into the leakage opening for plugging by the pushing mechanism in the positioning structure in a reciprocating motion towards the direction of the leakage opening. The temporary plugging device for the marine pipe can quickly plug the leakage port, realize temporary reproduction of the marine pipe, reduce the production stop time of the marine pipe and reduce the economic loss when the work is carried out for the permanent repair of the subsequent marine pipe. The temporary plugging device for the marine pipe has the advantages of good plugging effect, visual and controllable operation mode and capability of saving a large amount of economic cost for maintenance of the marine pipe.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

FIG. 1 is a schematic view showing the state of the leakage port on the sea pipe of the present invention;

fig. 2 is a schematic view of the state of the temporary plugging device for a sea pipe of the present invention;

FIG. 3 is a side view of the temporary plugging device for sea pipes shown in FIG. 2;

FIG. 4 is a top view of the temporary plugging device for sea pipes shown in FIG. 2;

FIG. 5 is a schematic view of the temporary plugging device for sea pipes shown in FIG. 2 before the plugging structure for plugging the sea pipes is pushed;

fig. 6 is a schematic view of the temporary sea pipe plugging device shown in fig. 2 after the plugging structure for plugging the sea pipe is pushed.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 and 2 show some preferred embodiments of the temporary plugging device for sea pipes of the present invention. This interim plugging device of sea pipe is applicable to the sea pipe and corrodes the interim leaking stoppage that the damage accident of leaking the mouth appears in the sea pipe that leads to appearing leaking the mouth or other reasons and leading to, and its applicable deep water field that is less than 300 meters, it can be installed fast by the diver under water to the accurate control to the installation, and can implement the stroke that runs through the leaking stoppage, accurate control leaking stoppage structure. The temporary plugging device for the marine pipe can quickly plug the leakage port, realize temporary reproduction of the marine pipe, reduce the production stop time of the marine pipe and reduce the economic loss when the work is carried out for the permanent repair of the subsequent marine pipe. The temporary plugging device for the marine pipe has the advantages of good plugging effect, visual and controllable operation mode and capability of saving a large amount of economic cost for maintenance of the marine pipe.

As shown in fig. 2 to 4, further, in some embodiments, the temporary plugging device for sea pipes may include a pipe clamp 10, a positioning structure 20, a plugging structure 30, and a pushing mechanism 40. The pipe clamp 10 can be sleeved on the sea pipe 100 and can be detachably connected with the sea pipe 100. The positioning structure 20 can be disposed on the pipe clamp 10, and the positioning structure 20 can be used to position the leakage port 20 on the sea pipe 100. The plugging structure 30 can be disposed in the positioning structure 20, and can be used to plug the leakage hole 20 on the sea pipe 100. The pushing mechanism 40 is disposed on the positioning structure 20 and capable of reciprocating toward the leakage opening 101, and is used for pushing the plugging structure 30 into the leakage opening 101 to plug the leakage opening 101. In some embodiments, the leak 101 may be a circular through hole.

In some embodiments, the pipe clamp 10 may include a first pipe clamp body 11 and a second pipe clamp body 12, which are each tile-shaped, and the first pipe clamp body 11 and the second pipe clamp body 12 are spliced together and may form a cylindrical structure inside. The radial dimension of the first pipe clamp body 11 can be matched with the radial dimension of the sea pipe 100, and the first pipe clamp body can be sleeved on the periphery of the sea pipe 100, and two opposite sides of the first pipe clamp body 11 can extend outwards to form a first outer flange. The pipe clamp 10 can be provided with a positioning hole 111, and the positioning hole 111 can be provided on the first pipe clamp body 11, although it is understood that in other embodiments, the positioning hole 111 can be not limited to be provided on the first pipe clamp body 11, and can be provided on the second pipe clamp body 12. The radial dimension of the second pipe clamp body 12 can be matched with the radial dimension of the sea pipe 100, and the second pipe clamp body can be sleeved on the periphery of the sea pipe 100, and two opposite sides of the second pipe clamp body 12 can respectively extend outwards to form second outer flanges. In some embodiments, the pipe clamp 10 may further include a connection assembly 13. The connecting members 13 may be two sets, the two sets of connecting members 13 may be disposed on two opposite sides of the pipe clamp 10, and the connecting members 13 may be used to connect the first pipe clamp body 11 and the second pipe clamp body 12. In some embodiments, the connecting assembly 13 may include a bolt and a nut. When the first pipe clamp body 11 and the second pipe clamp body 12 are sleeved on the sea pipe 100 and spliced with each other, the first outer flange is overlapped with the second outer flange, the bolt can be arranged on the first outer flange and the second outer flange of the first pipe clamp body 11 and the second pipe clamp body 12 in a penetrating manner, and the nut can be sleeved on a section of the bolt penetrating out of the first outer flange and the second outer flange, so that the first pipe clamp body 11 and the second pipe clamp body 12 are connected and fixed.

Further, in some embodiments, the positioning structure 20 may be disposed on the first pipe clamp body 11, and specifically, in some embodiments, the positioning structure 20 may be formed as an integral structure with the first pipe clamp body 11 by injection molding or casting. In some embodiments, the positioning structure 20 may be a hollow structure, and in particular, the positioning structure 20 may include a hollow cylindrical body. The hollow cylindrical body can be correspondingly disposed at the positioning hole 111 of the first pipe clamp body 11, and is communicated with the positioning hole 111. The cylindrical body may include a top wall 21 and a side wall 22, the cylindrical body may be cylindrical, the top wall 21 may be circular, and the side wall 22 may be disposed on the top wall 21 and extend downward. The positioning structure 20 can be provided with an observation port 221, the whole process of the leaking stoppage process can be visible through the observation port 221, and a diver can observe the proceeding of the leaking stoppage operation of the leaking stoppage structure 30 in real time. In some embodiments, the viewing port 221 may be provided on the cylindrical body, in particular, on a side wall of the cylindrical body 21, for easy viewing by a diver. In some embodiments, an end of the cylindrical body away from the top wall 21 may be provided with an opening, which may communicate with the positioning hole 111, which may facilitate the leakage blocking structure 30 to block the leakage port 101.

Further, in some embodiments, the plugging structure 30 may be a plug, the plug may be quickly and firmly plugged at the leakage port 101, the plug is an elastic plug, and may be made of an elastic material, specifically, in some embodiments, the plug may be made of a high temperature nylon material, and may be quickly machined by a lathe, so as to improve the field construction efficiency; the nylon material has certain elasticity, increases leakproofness. In some embodiments, the plug may be in the shape of a cone frustum, which may not fall into the interior of the marine vessel 100 while ensuring that plugging is achieved, and may facilitate control of its insertion depth into the marine vessel 100.

Further, in some embodiments, the pushing mechanism 40 may include a push rod 41 and a pressing sheet 42, the push rod 41 may be disposed on the positioning structure 20, and specifically, the push rod 41 may penetrate into the cylindrical body from the top wall 21 of the cylindrical body in a direction perpendicular to the top wall 21 of the cylindrical body, and may be pushed toward the leakage port 101. The pressing plate 42 can be disposed in the positioning structure 20, specifically, it can be disposed in the cylindrical body, and it can be connected to one end of the push rod 41. In some embodiments, the pressing tab 42 may be curved, and may be made of a steel plate. The pressure plate 42 can be pressed onto the plug in order to press the plug into the leakage opening 101. In some embodiments, the push rod 41 may be screwed to the top wall of the cylindrical body, in some embodiments, a screw 411 may be disposed at an end of the push rod 41 away from the pressing plate 42, the screw 411 may be screwed to the push rod 41, and the screw 411 may be used to connect with an external device, so that the external device may drive the push rod 41 to rotate. In some embodiments, the threaded rod 411 may be a bolt, which may be coupled to a wrench. In some embodiments, the screw 411 can be operated by an operator, and the operator can operate the screw 411 to drive the entire push rod 41 to rotate without connecting to an external device, so as to achieve the reciprocating motion toward the leakage port 101. The installation progress can be controlled by rotating the push rod, and the installation process and the result of the temporary plugging plug can be accurately controlled.

As shown in fig. 5 and 6, when the temporary plugging device for the marine pipe is used for underwater operation, the diameter of a leakage port 101 of the marine pipe 100 is checked and measured, and the temporary plugging block is rapidly processed according to the diameter, is in a cylindrical shape, and has two larger end faces and one smaller end face; a small end of the plugging plug is plugged into the leakage port; the first pipe clamp body 11 is placed to the leakage port, and the state of blocking can be observed in real time through the observation port; and (3) lowering the second pipe clamp body 12 to a specified position, and fastening the first pipe clamp body 11 and the second pipe clamp body 12 through bolts. The diver drives the screw rod 411 of push rod 41 one end through the spanner, drives whole push rod 41 rotatory, because fixed plate nut 4 welded fastening is at the fixed plate, push rod 41 reciprocates owing to the rotation, drives preforming 42 then, extrudees the shutoff stopper into leakage port 101, observes the stroke of shutoff stopper in real time through viewing aperture 211, reaches the predetermined degree of depth, stops the operation. The temporary plugging of the leakage port 101 is realized by the plugging plug, and the temporary reproduction of the sea pipe 100 is realized.

It is to be understood that the foregoing examples merely represent preferred embodiments of the present invention, and that the description thereof is more specific and detailed, but not intended to limit the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. The temporary plugging device for the marine pipe is characterized by comprising a pipe clamp (10) detachably sleeved on the marine pipe (100), a positioning structure (20) arranged on the pipe clamp (10) and used for positioning a leakage opening (101) in the marine pipe (100), a plugging structure (30) arranged in the positioning structure (20) and used for plugging the leakage opening (101), and a pushing mechanism (40) which can reciprocate towards the direction of the leakage opening (101) and is arranged on the positioning structure (20) and used for pushing the plugging structure (30) into the leakage opening (101) to perform plugging;

the positioning structure (20) is arranged in a hollow mode, and an observation port (221) for observing the leakage stoppage operation of the leakage stoppage structure (30) is formed in the positioning structure (20);

and the pipe clamp (10) is provided with a positioning hole (111) for positioning the leakage port (101) and communicated with the positioning structure (20).

2. Temporary leak stopping device for marine pipes according to claim 1, wherein the pushing mechanism (40) comprises a push rod (41) disposed on the positioning structure (20) and capable of pushing towards the leak opening (101), and a pressing plate (42) disposed in the positioning structure (20) and connected to one end of the push rod (41) to press the leak stopping structure (30) into the leak opening (101).

3. Temporary sea pipe plugging device according to claim 2, wherein said positioning structure (20) comprises a hollow cylindrical body;

the observation port (221) is arranged on the cylindrical body;

the push rod (41) penetrates into the cylindrical body from the top of the cylindrical body.

4. Temporary sea pipe plugging device according to claim 3, wherein said cylindrical body comprises a top wall (21), and a side wall (22) provided on said top wall (21) and extending downward;

the push rod (41) penetrates into the cylindrical body from the top wall (21);

an opening communicated with the positioning hole (111) is formed in one end, far away from the top wall (21), of the cylindrical body.

5. The temporary leakage stopping device for the marine pipe as claimed in claim 2, wherein a screw (411) connected with an external device is arranged at one end of the push rod (41) far away from the pressing sheet (42) so that the push rod (41) is driven to rotate by the external device or an operator can drive the push rod (41) to rotate;

the screw rod (411) is in threaded connection with the push rod (41).

6. Temporary sea pipe plugging device according to claim 1, wherein said plugging structure (30) comprises a plugging plug plugged into said leak opening (101) for plugging.

7. Temporary sea pipe plugging device according to claim 6, wherein the plugging plug is an elastic plug.

8. The temporary plugging device for the sea pipe according to claim 6, wherein the plugging block is in a cone frustum shape.

9. Temporary plugging device for sea pipes according to claim 1, wherein the pipe clamp (10) comprises a first pipe clamp body (11) in a tile shape, and a second pipe clamp body (12) in a tile shape, which is spliced with the first pipe clamp (10) and is matched with and fixes the sea pipes.

10. Temporary sea pipe plugging device according to claim 9, wherein said pipe clamp (10) further comprises a connection assembly (13) for detachably connecting said first pipe clamp body (11) and said second pipe clamp body (12).