CN220813928U - Combined underwater pipeline connecting vertical shaft - Google Patents
Combined underwater pipeline connecting vertical shaft Download PDFInfo
- Publication number
- CN220813928U CN220813928U CN202322433180.XU CN202322433180U CN220813928U CN 220813928 U CN220813928 U CN 220813928U CN 202322433180 U CN202322433180 U CN 202322433180U CN 220813928 U CN220813928 U CN 220813928U
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- pipeline
- shaft
- sealing
- lower shaft
- sealing ring
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- 238000007789 sealing Methods 0.000 claims abstract description 65
- 239000003566 sealing material Substances 0.000 claims abstract description 18
- 238000005260 corrosion Methods 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 25
- 238000003466 welding Methods 0.000 abstract description 8
- 230000000903 blocking effect Effects 0.000 abstract description 5
- 239000003292 glue Substances 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 230000007306 turnover Effects 0.000 abstract description 4
- 230000000149 penetrating effect Effects 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The utility model provides a combined underwater pipeline connecting vertical shaft, and belongs to the technical field of underwater pipeline connecting vertical shafts. The combined underwater pipeline connecting vertical shaft comprises an upper shaft, a lower shaft and a bottom sealing structure, wherein the upper shaft and the lower shaft are spliced, and the bottom sealing structure comprises a sealing groove, a sealing ring, an inlet and outlet hole and a pipeline sealing ring. According to the utility model, a sealing ring is arranged in the inner cavity of the sealing groove by arranging the bottom sealing structure, then the upper shaft and the lower shaft are spliced, sealing materials are filled in the sealing groove again, and the inner side of the sealing groove is provided with the glue injection hole as a water blocking supplementary measure; then pass business turn over hole and accurate location with first pipeline and second pipeline back, cup joint the shutoff of pipeline sealing washer between first pipeline, second pipeline and business turn over hole and block water, solved the problem of the required welding space when the submarine pipeline of wide-angle is connected with the pipeline of directly laying the submarine section, be particularly useful for strong permeable stratum, combination formula shaft simple structure, the installation, demolish conveniently.
Description
Technical Field
The utility model relates to the field of underwater pipeline connecting shafts, in particular to a combined underwater pipeline connecting shaft.
Background
The offshore directional drilling crossing pipeline is normally installed obliquely downwards under water and the seabed, the submarine direct laying sections of pipelines are connected in an elastic pipeline laying mode, the elastic laying transition mode is only suitable for the directional drilling crossing pipeline installed obliquely at a small angle, and the submarine directional drilling crossing pipeline installed at a large angle cannot be connected in an elastic laying mode.
For the directional drilling pipeline installed at a large angle, the pipeline is required to be welded with the inclined pipeline and the pipeline laid on the seabed directly in a bend connection mode, and for the pipeline welding under water, a dry environment suitable for pipeline welding is required. For stratum with strong water permeability on the sea bottom, seawater can pass through the permeable layer at the bottom of the cofferdam, and the water discharge is large and can not be implemented almost. If steel sheet piles are adopted for blocking water, the steel sheet piles need to penetrate through the permeable layer, and if large backfill stones are encountered, the construction difficulty is high; and the outer protective layer of the built pipeline can be damaged in the process of inserting and driving the steel sheet piles.
Disclosure of utility model
In order to remedy the above-mentioned drawbacks, the present utility model provides a modular underwater pipeline connection shaft that overcomes or at least partially solves the above-mentioned technical problems.
The utility model is realized in the following way:
The utility model provides a combined underwater pipeline connecting vertical shaft, which comprises an upper shaft, a lower shaft and a back cover structure, wherein the upper shaft and the lower shaft are spliced, and the back cover structure comprises
The sealing groove is formed at the joint of the upper shaft and the lower shaft;
the sealing ring is arranged in the inner cavity of the sealing groove;
The access holes are symmetrically formed at the joints of the side walls of the upper shaft and the lower shaft, and a first pipeline and a second pipeline are respectively inserted into the two access holes;
And the pipeline sealing ring is filled among the first pipeline, the second pipeline and the inlet and outlet holes.
In a preferred embodiment, the pipe seal is made of a flexible sealing material.
In a preferred embodiment, a connecting elbow is welded between the first pipe and the second pipe.
In a preferred embodiment, the connecting bend is provided with a corrosion-resistant coating at the weld.
In a preferred embodiment, a sealing material is filled between the lower wellbore and the connecting elbow to form a conduit support.
In a preferred embodiment, the sealing groove is filled with a sealing material.
The utility model provides a combined underwater pipeline connecting vertical shaft, which has the beneficial effects that:
1. By arranging the bottom sealing structure, a sealing ring is arranged in the inner cavity of the sealing groove, then the upper shaft and the lower shaft are spliced, sealing materials are filled in the sealing groove again, and glue injection holes are arranged on the inner side of the sealing groove and used as water blocking supplementary measures, so that the sealing performance is ensured, and water is prevented from penetrating; then pass business turn over hole and accurate location with first pipeline and second pipeline back, cup joint the shutoff of pipeline sealing washer between first pipeline, second pipeline and business turn over hole and block water, solved the problem of the required welding space when the submarine pipeline of wide-angle is connected with the pipeline of directly laying the submarine section, be particularly useful for strong permeable stratum, combination formula shaft simple structure, the installation, demolish conveniently.
2. Through setting up the connecting bend, go up pit shaft and down pit shaft installation and sealed after, with last pit shaft and lower pit shaft evacuation of water, go up pit shaft and lower pit shaft internal installation connecting bend to with connecting bend both ends respectively with first pipeline and second pipeline welded connection, and set up anticorrosive coating in connecting bend welded part, demolish last pit shaft afterwards, leave down the pit shaft and stay the seabed, and fill sealing material between pit shaft and connecting bend, form the pipeline support, guarantee pipeline stability at the submarine.
Drawings
For a clearer description of the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art;
FIG. 1 is a front exploded view of an embodiment of the present utility model;
FIG. 2 is a side view provided by an embodiment of the present utility model;
FIG. 3 is a top view of an embodiment of the present utility model;
FIG. 4 is a left side exploded view of an embodiment of the present utility model;
FIG. 5 is a right-side exploded view of an embodiment of the present utility model;
In the figure: 1. an upper wellbore; 2. descending a shaft; 3. a bottom sealing structure; 301. sealing grooves; 302. a seal ring; 303. an inlet and outlet hole; 304. a pipe seal ring; 4. a first pipe; 5. a second pipe; 6. and (5) connecting the bent pipe.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
Examples
Referring to fig. 1-5, the present utility model provides a technical solution: the combined underwater pipeline connecting vertical shaft comprises an upper shaft 1, a lower shaft 2 and a bottom sealing structure 3, wherein the upper shaft 1 and the lower shaft 2 are spliced to form a vertical shaft; the bottom sealing structure 3 comprises a sealing groove 301, a sealing ring 302, an inlet and outlet hole 303 and a pipeline sealing ring 304, wherein the sealing groove 301 is arranged at the joint of the upper shaft 1 and the lower shaft 2 and is used for installing the sealing ring 302, the sealing ring 302 is arranged in the inner cavity of the sealing groove 301 and is used for improving the tightness between the upper shaft 1 and the lower shaft 2, the pipeline sealing ring 304 is made of flexible sealing materials, and the sealing groove 301 is filled with sealing materials to ensure the sealing performance.
Referring to fig. 1 to 5, in a preferred embodiment, the access holes 303 are symmetrically formed at the joints of the side walls of the upper shaft 1 and the lower shaft 2, and are used for installing the first pipeline 4 and the second pipeline 5, the first pipeline 4 and the second pipeline 5 are respectively inserted into the two access holes 303, and the pipeline sealing rings 304 are filled between the first pipeline 4, the second pipeline 5 and the access holes 303, and are used for ensuring the tightness among the first pipeline 4, the second pipeline 5 and the access holes 303 and preventing water from penetrating into the well.
In a preferred embodiment, when in use, a sealing ring 302 is arranged in the inner cavity of the sealing groove 301, then the upper shaft 1 and the lower shaft 2 are spliced, sealing materials are filled in the sealing groove 301 again, and a glue injection hole is arranged on the inner side of the sealing groove 301, so that the sealing performance is ensured as a water blocking supplementary measure, and the infiltration of water is prevented; then after the first pipeline 4 and the second pipeline 5 pass through the inlet and outlet holes 303 and are accurately positioned, the pipeline sealing ring 304 is sleeved among the first pipeline 4, the second pipeline 5 and the inlet and outlet holes 303 to block water, and the pipeline sealing ring 304 is made of flexible sealing materials, so that the pipeline sealing ring can adapt to different surface shapes and can fill up tiny defects among surfaces, thereby providing better sealing effect, being beneficial to preventing water from penetrating and having good corrosion resistance.
Referring to fig. 1 to 5, in a preferred embodiment, a connecting elbow 6 is welded between the first pipe 4 and the second pipe 5, an anti-corrosion coating is arranged at the welding position of the connecting elbow 6 to prevent seawater corrosion, the service life of the pipe is prolonged, and a sealing material is filled between the lower shaft 2 and the connecting elbow 6 to form a pipe support, so that the stability of the pipe at the water bottom is ensured.
In a preferred embodiment, after the upper shaft 1 and the lower shaft 2 are installed and sealed, water in the upper shaft 1 and the lower shaft 2 is drained, a connecting bent pipe 6 is installed in the upper shaft 1 and the lower shaft 2, two ends of the connecting bent pipe 6 are respectively welded with a first pipeline 4 and a second pipeline 5, an anti-corrosion coating is arranged at a welding position of the connecting bent pipe 6, the upper shaft 1 is removed, the lower shaft 2 is left on the sea floor, sealing materials are filled between the lower shaft 2 and the connecting bent pipe 6, a pipeline support is formed, and stability of the pipeline at the water bottom is guaranteed.
Specifically, the working process or working principle of the combined underwater pipeline connecting vertical shaft is as follows: when the sealing device is used, the sealing ring 302 is arranged in the inner cavity of the sealing groove 301, then the upper shaft 1 and the lower shaft 2 are spliced, sealing materials are filled in the sealing groove 301 again, and glue injection holes are arranged on the inner side of the sealing groove 301, so that the sealing performance is ensured as a water blocking supplementary measure, and water is prevented from penetrating; then after the first pipeline 4 and the second pipeline 5 pass through the inlet and outlet holes 303 and are accurately positioned, the pipeline sealing ring 304 is sleeved among the first pipeline 4, the second pipeline 5 and the inlet and outlet holes 303 to block water, and the pipeline sealing ring 304 is made of flexible sealing materials, so that the pipeline sealing ring can adapt to different surface shapes and can fill up tiny defects among surfaces, thereby providing better sealing effect, being beneficial to preventing water from penetrating and having good corrosion resistance.
After the upper shaft 1 and the lower shaft 2 are installed and sealed, water in the upper shaft 1 and the lower shaft 2 is drained, a connecting elbow 6 is installed in the upper shaft 1 and the lower shaft 2, two ends of the connecting elbow 6 are respectively welded with a first pipeline 4 and a second pipeline 5, an anti-corrosion coating is arranged at a welding position of the connecting elbow 6, the upper shaft 1 is removed, the lower shaft 2 is left on the sea floor, sealing materials are filled between the lower shaft 2 and the connecting elbow 6, a pipeline support is formed, and the stability of a pipeline at the water bottom is ensured. The problem of the required welding space when the submarine pipeline of wide-angle is connected with the pipeline of directly laying at submarine section has been solved, is particularly useful for strong permeable stratum, and combination formula shaft simple structure installs, demolishs conveniently.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (6)
1. The combined underwater pipeline connecting vertical shaft is characterized by comprising an upper shaft (1), a lower shaft (2) and a back cover structure (3), wherein the upper shaft (1) and the lower shaft (2) are spliced, and the back cover structure (3) comprises
The sealing groove (301), the sealing groove (301) is arranged at the joint of the upper shaft (1) and the lower shaft (2);
The sealing ring (302), the sealing ring (302) is installed in the inner cavity of the sealing groove (301);
the two inlet and outlet holes (303) are symmetrically formed at the joint of the side walls of the upper shaft (1) and the lower shaft (2), and a first pipeline (4) and a second pipeline (5) are respectively inserted into the two inlet and outlet holes (303);
And the pipeline sealing ring (304) is filled between the first pipeline (4), the second pipeline (5) and the inlet and outlet holes (303).
2. The modular underwater pipeline connection shaft of claim 1, wherein the pipeline sealing ring (304) is of flexible sealing material.
3. The combined underwater pipeline connection shaft according to claim 1, characterized in that a connection elbow (6) is welded between the first pipeline (4) and the second pipeline (5).
4. A modular underwater pipeline connection shaft as in claim 3, characterized in that the connection bend (6) is provided with an anti-corrosion coating at the weld.
5. The combined underwater pipeline connection shaft according to claim 1, characterized in that the sealing material is filled between the lower shaft (2) and the connection elbow (6) to form a pipeline support.
6. The modular underwater pipeline connection shaft as claimed in claim 1, characterized in that the sealing groove (301) is filled with sealing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322433180.XU CN220813928U (en) | 2023-09-08 | 2023-09-08 | Combined underwater pipeline connecting vertical shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322433180.XU CN220813928U (en) | 2023-09-08 | 2023-09-08 | Combined underwater pipeline connecting vertical shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220813928U true CN220813928U (en) | 2024-04-19 |
Family
ID=90672315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322433180.XU Active CN220813928U (en) | 2023-09-08 | 2023-09-08 | Combined underwater pipeline connecting vertical shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220813928U (en) |
-
2023
- 2023-09-08 CN CN202322433180.XU patent/CN220813928U/en active Active
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