CN212840083U - Plugging device for abandoning submarine pipeline - Google Patents
Plugging device for abandoning submarine pipeline Download PDFInfo
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- CN212840083U CN212840083U CN202021164524.1U CN202021164524U CN212840083U CN 212840083 U CN212840083 U CN 212840083U CN 202021164524 U CN202021164524 U CN 202021164524U CN 212840083 U CN212840083 U CN 212840083U
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- plugging
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- submarine pipeline
- sealing
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Abstract
The utility model discloses a plugging device for abandoning submarine pipeline, it is installed in the tip of abandoning submarine pipeline, and this plugging device includes: the elastic sealing device comprises a sealing barrel, a sealing plate body, an elastic barrel and a plurality of bolts, wherein one axial end part of the sealing barrel is combined with one side surface of the sealing plate body, the elastic barrel is sleeved on the outer side surface of the sealing barrel, a plurality of screw holes penetrating through the barrel wall are uniformly formed in the barrel wall of the sealing barrel along the circumferential direction, the plurality of bolts are correspondingly screwed in the plurality of screw holes, the length of a thread section of each bolt is larger than the thickness of the barrel wall of the sealing barrel, and the end part of the thread section can prop against the elastic barrel. Therefore, the plugging device does not need welding operation, is convenient to install, and can effectively prevent residual oil or chemical agent in the abandoned submarine pipeline from leaking to pollute seawater after installation.
Description
Technical Field
The utility model belongs to the technical field of the ocean engineering structure, especially, relate to a plugging device for abandoning submarine pipeline.
Background
After years of development of ocean engineering, part of offshore facilities lose the value of further development or the facility body cannot meet the requirement of further development, so that the part of offshore facilities losing the development value can only be recovered and abandoned. The abandoning of the submarine pipeline is an important link in the whole life cycle of the submarine pipeline, and before the submarine pipeline is abandoned, in order to avoid the pollution of residual oil or chemical agents in the submarine pipeline to the environment, the whole submarine pipeline system is generally subjected to operations of discharging, cleaning, collecting and the like so as to remove the residual oil, natural gas, chemical agents and the like in the submarine pipeline system. The method comprises the steps of cleaning the submarine pipeline by using an external pump to deliver fresh water as power and adding a cleaning agent into a cleaning ball, recycling the cleaning liquid after cleaning, cutting the vertical pipes at the two ends of the submarine pipeline from expansion bends by a diver by using an underwater cutting machine after the cleaned submarine pipeline is free from obvious oil stains through appearance inspection, hoisting the vertical pipes at the platform end along with a guide pipe frame, and performing pipe collection operation on the horizontal pipeline by using a pipe laying reverse method. The cut part of the submarine pipeline and the cut part of the riser still have the hidden trouble of residual oil or chemical agent leakage, and the end parts of the submarine pipeline and the cut part of the riser need to be plugged by adopting plugging facilities.
In order to solve the problem of quick plugging for abandoning a submarine pipeline, how to design a plugging device convenient for operation and installation has become one of the important problems to be solved in the technical field of marine engineering structures, which are required for safely and effectively treating and abandoning the submarine pipeline.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the technical scheme is how to provide a plugging device which can be quickly and simply installed at the end part of a abandoned submarine pipeline in the process of abandoning the submarine pipeline so as to effectively prevent residual oil or chemical agents in the pipeline from leaking into seawater to pollute the environment.
In order to solve the above technical problem, the present technical solution provides a plugging device for abandoning a submarine pipeline, which is installed at an end of the submarine pipeline, the plugging device comprising: the elastic sealing device comprises a sealing barrel, a sealing plate body, an elastic barrel and a plurality of bolts, wherein one axial end part of the sealing barrel is combined with one side surface of the sealing plate body, the elastic barrel is sleeved on the outer side surface of the sealing barrel, a plurality of screw holes penetrating through the barrel wall are uniformly formed in the barrel wall of the sealing barrel along the circumferential direction, the plurality of bolts are correspondingly screwed in the plurality of screw holes, the length of a thread section of each bolt is larger than the thickness of the barrel wall of the sealing barrel, and the end part of the thread section can prop against the elastic barrel. Therefore, the plugging device in the technical scheme does not need operations such as welding, only needs to enable one end of the plugging plate body to face the end part of the abandoned submarine pipeline and place the plugging plate body into the end part of the abandoned submarine pipeline, can be quickly, simply and fixedly installed in the end part of the abandoned submarine pipeline by adjusting the screwing depth of the bolts, and can effectively prevent residual oil or chemical agents in the abandoned submarine pipeline from leaking and polluting seawater.
As another implementation of the technical solution, the shape of the transverse cross section of the plugging cylinder and the shape of the plugging plate body correspond to the shape of the pipe body for abandoning the submarine pipeline. Therefore, the plugging device can plug various shapes of abandoned submarine pipelines.
As another implementation of the technical solution, the abandoned submarine pipeline is a circular pipe, the outer diameter of the end of the plugging cylinder combined with the plugging plate is smaller than the diameter of the plugging plate, so that an annular extending edge is formed on the outer side of the end of the plugging cylinder combined with the plugging plate, one end of the elastic cylinder facing the plugging plate is connected with the extending edge, and the outer diameter of one end of the elastic cylinder facing the plugging plate is equal to the diameter of the plugging plate. The elastic cylinder body is combined with the plugging cylinder body and the plugging plate body simultaneously, so that the combined integral structure is firmer and more reliable, the bottom of the plugging device is formed by the whole plugging plate body, and the outside of the plugging device is not provided with a protruding combining part, so that the smoothness of the plugging device which is sent into the end part of the abandoned submarine pipeline can be ensured.
In another embodiment of the present invention, the inclination of the cylinder wall of the plugging cylinder from the end connected to the plugging plate to the other end is 1: 7. Therefore, the end with the smaller outer diameter of the plugging device in the shape of a circular truncated cone is conveniently placed into the end part of the abandoned submarine pipeline, and the plugging device gradually seals the end part of the abandoned submarine pipeline along with the depth of the placing and delivering process.
In another embodiment of the present invention, the wall of the elastic tube has a uniform thickness.
As another implementation of the technical scheme, the thickness of the cylinder wall of the elastic cylinder body can also be gradually reduced from one end of the connected extending edge to the other end. Therefore, the application of the raw materials for manufacturing the elastic cylinder body can be saved, and the manufacturing cost is reduced.
In another embodiment of the present invention, the plurality of screw holes are formed along the circumferential direction of the wall of the sealing cylinder on the same transverse cross section of the sealing cylinder, and the distance from the screw holes to the end of the sealing cylinder far away from the sealing plate is 1/4 to 1/3 of the axial length of the sealing cylinder. Thus, the body part of the plugging device can be placed in the end part of the abandoned submarine pipeline, and the firmness and the sealing performance of the plugging device can be ensured.
As another implementation of the technical scheme, the elastic cylinder body is made of ethylene propylene diene monomer. Thus, the elasticity and corrosion resistance of the elastic cylinder can be ensured.
As another implementation of the technical scheme, the plugging cylinder body and the plugging plate body are both made of high-strength ship plates. This ensures the structural strength of the occluding device main body.
As another implementation of the technical scheme, the side face of the blocking plate body combined with the blocking cylinder body is provided with a handle. Thus, the installation operation of the plugging device can be facilitated.
Drawings
Fig. 1 is a structural diagram of the plugging device for abandoning the submarine pipeline of the present invention, which is overlooked obliquely above;
fig. 2 is a structural diagram of the combined plugging cylinder and the plugging plate in the utility model, which is overlooked obliquely above;
fig. 3 is a partial side sectional view of the plugging cylinder according to the present invention with a slope.
Symbolic illustration in the drawings:
1 plugging device for abandoning submarine pipeline; 2, blocking the cylinder body; 3 blocking the plate body; 4, an elastic cylinder body; 5, bolts; 6, a screw hole; 7 extending the edge; 8 handles.
Detailed Description
The following detailed description and technical contents of the present invention are described with reference to the drawings, but the drawings are only for reference and illustration and are not intended to limit the present invention.
As shown in fig. 1, for a specific embodiment of the plugging device for abandoning a submarine pipeline according to the present invention, the plugging device 1 for abandoning a submarine pipeline (hereinafter referred to as plugging device 1) is installed in the end of the submarine pipeline for plugging the submarine pipeline. The occlusion device 1 comprises: the sealing device comprises a sealing cylinder body 2, a sealing plate body 3, an elastic cylinder body 4 and a plurality of bolts 5, wherein one axial end part of the sealing cylinder body 2 is combined with one side surface of the sealing plate body 3, the combination mode can be welding combination, the elastic cylinder body 4 is sleeved on the outer side surface of the sealing cylinder body 2, a plurality of screw holes 6 penetrating through the cylinder wall are uniformly formed in the cylinder wall of the sealing cylinder body 2 along the circumferential direction, the bolts 5 are correspondingly screwed in the screw holes 6, the length of a thread section of each bolt 5 is larger than the thickness of the cylinder wall of the sealing cylinder body 2, the end part of the thread section can support the elastic cylinder body 4 by screwing the bolts 5, and the sealing device 1 is enabled to expand radially to seal. The shape of the transverse section of the plugging cylinder 2 and the shape of the plugging plate body 3 correspond to the shape of the pipe body of the abandoned submarine pipeline, so that the plugging device 1 can meet the requirements of plugging the abandoned submarine pipelines with various shapes. In the utility model discloses in, this elasticity barrel 4 can be made by the EPT rubber to this elasticity and the corrosion resistance that can ensure elasticity barrel 4, and this shutoff barrel 2 and shutoff plate body 3 can be made by the high strength ship board, in order to ensure the structural strength of 1 main parts of plugging device, nevertheless the utility model discloses the preparation material to elasticity barrel 4, shutoff barrel 2 and shutoff plate body 3 is not restricted.
As shown in fig. 1 and 2, the present embodiment will be described with respect to a pipeline in which a submarine pipeline is disposed in a cylindrical shape, the plugging cylinder 2 in a cylindrical shape, and the plugging plate 3 in a circular plate shape. More specifically, the outer diameter of the end portion of the plugging cylinder 2 joined to the plugging plate 3 is smaller than the diameter of the plugging plate 3, so that the plugging plate 3 has an annular extending edge 7 formed outside the end portion of the plugging cylinder 2 joined to the plugging plate 3, the end of the elastic cylinder 4 facing the plugging plate 3 is in contact with the extending edge 7, and the outer diameter of the end of the elastic cylinder 4 facing the plugging plate 3 is equal to the diameter of the plugging plate 3. The combination of the elastic cylinder 4, the blocking cylinder 2 and the blocking plate 3 can be adhesive or thermal bonding. The elastic cylinder 4 is combined with the plugging cylinder 2 and the plugging plate 3 at the same time, so that the combined integral structure is firmer and more reliable, the bottom of the plugging device 1 is formed by the whole plugging plate 3, and no convex combination part is arranged outside the plugging device 1, so that the smoothness of the plugging device 1 which is put into the end part of the abandoned submarine pipeline can be ensured.
As shown in fig. 3, in the present embodiment, the inclination of the cylinder wall of the plugging cylinder 2 from the end portion combined with the plugging plate body 3 to the other end portion is 1:7, the plurality of screw holes 6 are formed along the circumferential direction of the cylinder wall of the plugging cylinder 2 on the same transverse cross section of the plugging cylinder 2, and the distance from the screw holes 6 to the end portion of the plugging cylinder 2 far from the plugging plate body 3 is between 1/4 and 1/3 of the axial length of the plugging cylinder 2. Thus, the plugging device 1 with a truncated cone shape in appearance has one end with a smaller outer diameter which is convenient to be put into the end part of the abandoned submarine pipeline, the plugging device 1 gradually seals the end part of the abandoned submarine pipeline along with the deepening of the putting process, and a plurality of bolts 5 between 1/4 and 1/3 away from the outer end part of the plugging cylinder 2 are screwed to enable the plugging device 1 to expand radially along with the main body part of the plugging device 1 being put into the end part of the abandoned submarine pipeline, so that the firmness and the sealing performance of the plugging device 1 are ensured.
In this embodiment, the thickness of the wall of the elastic tube 4 may be uniform, but may also be gradually thinner from one end of the extending edge 7 to the other end. The gradually-thinned structure of the cylinder wall of the elastic cylinder body 4 can save the application of the raw materials for manufacturing the elastic cylinder body 4, thereby reducing the manufacturing cost.
As shown in fig. 1, a handle 8 may be further installed on the side surface of the plugging plate 3 combined with the plugging cylinder 2, and the handle 8 may be a round steel handle and welded to the middle position of the plugging plate 3, so as to facilitate the installation and operation of the plugging device 1 by an operator.
To sum up, the utility model discloses a plugging device need not to carry out operations such as welding, can the shutoff in abandoning submarine pipeline's tip. In operation, one end of the plugging plate body faces the end of the abandoned submarine pipeline, the plugging device is sent into the end of the abandoned submarine pipeline, the plugging device can be quickly, simply and conveniently and fixedly installed in the end of the abandoned submarine pipeline by adjusting the screwing depth of the bolts, and the installed plugging device can effectively prevent residual oil or chemical agent in the abandoned submarine pipeline from leaking to pollute seawater.
Above only be the preferred embodiment of the utility model discloses a not be used for injecing the utility model discloses a patent range, other applications the utility model discloses an equivalent change that the patent design was done all should belong to the patent protection scope of the utility model.
Claims (10)
1. A plugging device for abandoning a submarine pipeline, the plugging device being installed at an end of the submarine pipeline, the plugging device comprising: the elastic sealing device comprises a sealing barrel, a sealing plate body, an elastic barrel and a plurality of bolts, wherein one end part of the sealing barrel in the axial direction is combined with one side surface of the sealing plate body, the elastic barrel is sleeved on the outer side surface of the sealing barrel, the elastic sealing device is characterized in that a plurality of screw holes penetrating through the barrel wall are uniformly formed in the barrel wall of the sealing barrel along the circumferential direction, the plurality of bolts are correspondingly and spirally arranged in the plurality of screw holes, the length of the thread section of each bolt is larger than the thickness of the barrel wall of the sealing barrel, and the end part of the thread section can prop against the.
2. The plugging device for abandoning a submarine pipeline according to claim 1, wherein the shape of the transverse cross-section of the plugging cylinder and the shape of the plugging plate correspond to the shape of the body of the submarine pipeline to be abandoned.
3. The plugging device according to claim 2, wherein the submarine pipeline is a circular pipe, the outer diameter of the end of the plugging cylinder combined with the plugging plate is smaller than the diameter of the plugging plate, so that an annular extending edge is formed on the plugging plate outside the end of the plugging cylinder combined with the plugging plate, the end of the elastic cylinder facing the plugging plate is connected with the extending edge, and the outer diameter of the end of the elastic cylinder facing the plugging plate is equal to the diameter of the plugging plate.
4. The plugging device for abandoning a submarine pipeline according to claim 3, wherein the inclination of the cylinder wall of the plugging cylinder from the end combined with the plugging plate body to the other end is 1: 7.
5. The plugging device for abandoning a submarine pipeline according to claim 4, wherein the wall of the elastic cylinder has an equal thickness.
6. The plugging device of claim 4, wherein the wall of the resilient cylinder tapers in thickness from one end to the other end of the wall that meets the extended rim.
7. The plugging device for abandoning a submarine pipeline according to claim 1, wherein the positions at which the screw holes are opened along the circumference of the cylindrical wall of the plugging cylinder are on the same transverse cross section of the plugging cylinder, and the distance from the screw holes to the end of the plugging cylinder far away from the plugging plate body is 1/4-1/3 of the axial length of the plugging cylinder.
8. The plugging device for abandoning a submarine pipeline according to claim 1, wherein the elastic cylinder is made of ethylene propylene diene monomer.
9. The plugging device for abandoning a submarine pipeline according to claim 1, wherein the plugging cylinder and the plugging plate body are made of high-strength ship plates.
10. The plugging device for abandoning submarine pipeline according to claim 1, wherein said plugging plate body is provided with a handle on the side surface combined with said plugging cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021164524.1U CN212840083U (en) | 2020-06-22 | 2020-06-22 | Plugging device for abandoning submarine pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021164524.1U CN212840083U (en) | 2020-06-22 | 2020-06-22 | Plugging device for abandoning submarine pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212840083U true CN212840083U (en) | 2021-03-30 |
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ID=75175689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021164524.1U Active CN212840083U (en) | 2020-06-22 | 2020-06-22 | Plugging device for abandoning submarine pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212840083U (en) |
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2020
- 2020-06-22 CN CN202021164524.1U patent/CN212840083U/en active Active
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