CN216143374U

CN216143374U - Plugging device of pipeline under water

Info

Publication number: CN216143374U
Application number: CN202122070519.5U
Authority: CN
Inventors: 刘锦; 丁玉江; 简树明; 赵盛杰; 熊成龙; 张润; 沈凤群; 岳宏斌; 娄毅博; 李旭
Original assignee: Huaneng Lancang River Hydropower Co Ltd
Current assignee: Huaneng Lancang River Hydropower Co Ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-03-29
Anticipated expiration: 2031-08-30

Abstract

The embodiment of the utility model discloses a plugging device of an underwater pipeline, which comprises a plugging cover body, a first detachable connecting piece and a second detachable connecting piece, wherein the second detachable connecting piece is matched with the first detachable connecting piece; the first connecting piece setting of dismantling is in pipeline under water, and the connecting piece setting still is equipped with the flat pressure valve at the shutoff lid in the shutoff lid can be dismantled to the second. When the plugging device is installed, the flat pressure valve is closed, and then the first detachable connecting piece and the second detachable connecting piece are stably connected, so that the plugging cover body can be buckled on the pipe orifice of the underwater pipeline; when dismantling plugging device, open the flat pressure valve, then with first can dismantle connect and can dismantle the connecting piece separation with the second, just can lift the shutoff apron off to not only make loading and unloading operation simple more swift, shortened during the staff is at underwater operation, reduced the safety risk of staff at underwater operation, the shutoff board can used repeatedly moreover, has reduced the cost of shutoff pipeline.

Description

Plugging device of pipeline under water

Technical Field

The utility model relates to the technical field of pipeline construction, in particular to a plugging device for an underwater pipeline.

Background

Pipeline plugging is a very important project in pipeline maintenance. Particularly, the plugging of underwater or submarine pipelines is difficult, which is a great problem in pipeline maintenance.

In the prior art, the traditional plugging method is to weld a plugging plate at the pipe orifice of an underwater pipeline and cut off the plugging plate after maintenance is completed, so that the operation is complex, the working time of workers under water is increased, the safety risk of the workers in underwater operation is improved, the plugging plate cannot be reused, and the cost for plugging the pipeline is improved.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the utility model provides a plugging device for an underwater pipeline, so as to solve the problems that the traditional plugging device is complex in operation, the underwater working time of workers is increased, the safety risk of the workers in underwater operation is improved, a plugging plate cannot be reused, and the cost for plugging the pipeline is increased.

The embodiment of the utility model provides a plugging device for an underwater pipeline, which comprises a plugging cover body, a first detachable connecting piece and a second detachable connecting piece, wherein the second detachable connecting piece is matched with the first detachable connecting piece;

the first connecting piece setting of dismantling is in the pipeline under water, the connecting piece setting is dismantled to the second is in the shutoff lid, still be equipped with the flat pressure valve on the shutoff lid.

Specifically, the first detachable connecting piece comprises an anchoring rod fixed in the underwater pipeline, and the anchoring rod is arranged along the radial direction of the underwater pipeline;

the detachable second connecting piece comprises a screw and a hook part arranged at one end of the screw, a screw hole is formed in the plugging cover body, and the other end of the screw is in threaded connection with the screw hole.

Specifically, one side of the blocking cover body, which is close to the hook portion, is provided with a blocking sleeve.

Specifically, the radial sectional area of the plugging cover body is larger than that of the plugging sleeve.

Specifically, the vertical distance between the edge of the plugging sleeve and the edge of the plugging cover body is 10 cm.

Specifically, a first sealing element is arranged between the edge of the plugging cover body and the edge of the plugging sleeve.

Specifically, a second sealing element is arranged at the joint of the screw rod and the screw hole.

Specifically, the first sealing element and the second sealing element are rubber gaskets.

According to the plugging device for the underwater pipeline, provided by the embodiment of the utility model, when the plugging device is installed, the flat pressure valve is closed, and then the first detachable connecting piece and the second detachable connecting piece are stably connected, so that the plugging cover body can be buckled on the pipe orifice of the underwater pipeline; when dismantling plugging device, open the flat pressure valve, make the water pressure in the pipeline and the outer water pressure of pipeline keep balance, then will first can dismantle connect and can dismantle the connecting piece separation with the second, just can lift the shutoff apron off to not only make loading and unloading operation simple more swift, shortened during the staff is at underwater operation, reduced the safety risk of staff at underwater operation, the shutoff board can used repeatedly moreover, reduced the cost of shutoff pipeline.

Drawings

The following drawings of the utility model are included to provide a further understanding of the utility model as a part of the examples. The drawings illustrate embodiments of the utility model and, together with the description, serve to explain the principles of the utility model.

In the drawings:

fig. 1 is a block diagram of an apparatus for plugging an underwater pipeline according to an alternative embodiment of the present invention.

Description of reference numerals:

1-a plugging cover body, 2-a plugging sleeve, 3-an underwater pipeline, 4-a first detachable connecting piece, 5-a second detachable connecting piece, 501-a screw rod, 502-a hook part, 6-a first sealing piece, 7-a second sealing piece and 8-a flat pressure valve.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the utility model.

It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the utility model. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art.

As shown in fig. 1, an embodiment of the present invention provides an underwater pipeline plugging device, which includes a plugging cover 1, a first detachable connecting member 4, and a second detachable connecting member 5 adapted to the first detachable connecting member 4; the first connecting piece 4 of dismantling sets up in pipeline 3 under water, and the connecting piece 5 setting is dismantled at shutoff lid 1 to the second, still is equipped with flat pressure valve 8 on the shutoff lid 1.

Wherein, the shutoff lid 1 can adopt the pipe plug to pass through the lid, specifically, shutoff lid 1 includes apron and the lateral wall of being connected with the apron edge. When the plugging cover body 1 is buckled at the pipe orifice of the underwater pipeline 3, the side wall is wrapped outside the underwater pipeline 3 to increase the sealing property. The shape of shutoff lid matches with the shape and the size of mouth of a pipe department, and this embodiment does not do the strict limitation.

In specific application, when any water taking front valve is not arranged or is damaged and an underwater pipeline 3 to be repaired needs to be plugged, the flat pressure valve 8 is closed, and then the first detachable connecting piece 4 and the second detachable connecting piece 5 are stably connected, so that the plugging cover body 1 can be buckled on the pipe orifice of the underwater pipeline 3; when dismantling plugging device, open flat pressure valve 8 earlier, make the water pressure in the pipeline and the outer water pressure of pipeline keep balance, the pressure differential has been eliminated like this, thereby be convenient for shutoff lid 1 lift off, then with first can dismantle connect 4 and can dismantle the separation of connecting piece 5 with the second, just can lift off the shutoff apron, thereby not only make loading and unloading operation simple more swift, shortened during the staff is under water, the safety risk of staff operation under water has been reduced, and the shutoff board can used repeatedly, the cost of shutoff pipeline has been reduced.

In the above embodiment, as shown in fig. 1, the first detachable connector 4 comprises an anchor rod fixed in the underwater pipeline 3, the anchor rod being arranged in a radial direction of the underwater pipeline 3; the second detachable connecting piece 5 comprises a screw 501 and a hook 502 arranged at one end of the screw 501, a screw hole is arranged on the plugging cover body 1, and the other end of the screw 501 is in threaded connection with the screw hole.

The anchor rod can be fixed in the underwater pipeline 3 by welding, and other fixing modes can be adopted, and the embodiment is not strictly limited.

Specifically, when the plugging device is installed, the flat pressure valve 8 is closed, the hook portion 502 of the screw 501 extends into the underwater pipeline 3 and hooks the anchoring rod, and then the plugging cover body 1 is rotated, so that the plugging cover body 1 moves towards the direction close to the pipe orifice along the screw 501 until the plugging cover body 1 covers the pipe orifice of the underwater pipeline 3, and thus the rotating plugging cover body is fixed at the pipe orifice through the matching of the screw 501 and the anchoring rod, and the quick plugging of the pipe orifice is completed. When the plugging device is detached, the flat pressure valve 8 is firstly opened, then the plugging cover body 1 is rotated, so that the plugging cover body 1 moves along the screw 501 to the direction away from the pipe orifice, the plugging cover body 1 is further away from the pipe orifice, and then the hook part 502 of the screw 501 is separated from the anchoring rod, so that the plugging device can be detached.

In this embodiment, the loading and unloading of the plugging cover 1 are realized by the cooperation of the hook part 502 and the anchoring rod, which not only has simple structure, easy manufacture and low cost, but also has firm connection, increases the connection stability, and has lighter weight and more convenient carrying.

Further, as shown in fig. 1, a plugging sleeve 2 is provided on a side of the plugging cover body 1 close to the hook portion 502, so that when the plugging cover body 1 covers the pipe orifice, the plugging sleeve 2 extends into the underwater pipeline 3, thereby improving the sealing performance of the plugging device.

Further, as shown in fig. 1, the radial sectional area of the plugging cover body 1 is larger than the radial sectional area of the plugging sleeve 2. Optionally, the vertical distance between the edge of the plugging sleeve 2 and the edge of the plugging cover 1 is 10cm, so that the plugging cover 1 can be adapted to pipelines with more sizes, and the adaptability of the plugging cover 1 can be improved.

Further, as shown in fig. 1, a first sealing member 6 is provided between the edge of the plugging cover body 1 and the edge of the plugging sleeve 2, so that the sealing performance of the region of the plugging cover body 1 other than the plugging sleeve is increased, and the sealing performance of the whole plugging cover body 1 is further enhanced.

Further, as shown in fig. 1, a second sealing member 7 is disposed at a joint of the screw 501 and the screw hole, so as to prevent liquid in the underwater pipeline 3 from leaking from the joint or external liquid from flowing into the pipeline through the joint, and to improve the sealing performance of the plugging cover 1.

In the above embodiment, the first sealing element 6 and the second sealing element 7 are rubber gaskets, and the rubber gaskets have good sealing performance and corrosion resistance to achieve a good sealing effect, and can be used for a long time, so that the service lives of the first sealing element 6 and the second sealing element 7 are prolonged.

The present invention has been illustrated by the above embodiments, but it should be understood that the above embodiments are for illustrative and descriptive purposes only and are not intended to limit the utility model to the scope of the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many variations and modifications may be made in accordance with the teachings of the present invention, which variations and modifications are within the scope of the present invention as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The plugging device for the underwater pipeline is characterized by comprising a plugging cover body, a first detachable connecting piece and a second detachable connecting piece matched with the first detachable connecting piece;

2. The device for plugging an underwater pipeline according to claim 1, wherein the first detachable connector comprises an anchoring rod fixed in the underwater pipeline, and the anchoring rod is arranged along the radial direction of the underwater pipeline;

3. The device for plugging an underwater pipeline according to claim 2, wherein a plugging sleeve is arranged on one side of the plugging cover body close to the hook part.

4. The device for plugging an underwater pipeline according to claim 3, wherein a radial sectional area of the plugging cover is larger than a radial sectional area of the plugging sleeve.

5. Plugging device for an underwater pipeline according to claim 4, characterised in that the vertical distance between the edge of the plugging sleeve and the edge of the plugging cover is 10 cm.

6. The device for plugging a submarine pipeline according to claim 4, wherein a first seal is provided between the edge of the plugging cover and the edge of the plugging sleeve.

7. The device for plugging an underwater pipeline according to claim 2, wherein a second sealing member is arranged at the joint of the screw rod and the screw hole.

8. The device for plugging a subsea pipeline according to claim 6 or 7, wherein said first and second sealing members are rubber gaskets.