CN216843391U - Submarine pipeline limiting anchor chain system with initial laying function - Google Patents
Submarine pipeline limiting anchor chain system with initial laying function Download PDFInfo
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- CN216843391U CN216843391U CN202120361974.8U CN202120361974U CN216843391U CN 216843391 U CN216843391 U CN 216843391U CN 202120361974 U CN202120361974 U CN 202120361974U CN 216843391 U CN216843391 U CN 216843391U
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Abstract
The utility model discloses a spacing anchor chain system of submarine pipeline with originated function of laying, including the system wholly, the system wholly comprises anchor chain device and the originated hook in deep water. The anchor chain device comprises a main reinforcing ring, a special end ring, a large-outer-diameter end ring, a small-outer-diameter end ring, a common chain ring and a shackle, wherein the special end ring is arranged at one end of the main reinforcing ring, the large-outer-diameter end ring is arranged at one end of the special end ring, the small-outer-diameter end ring is arranged at one end of the large-outer-diameter end ring, the common chain ring is arranged at one end of the small-outer-diameter end ring, and the small-outer-diameter end ring, the large-outer-diameter end ring, the special end ring and the shackle are sequentially arranged at the other end of the common end ring to form a complete chain; the deepwater starting hook consists of a main hook body, a chain seal pin and a connecting auxiliary cable. The submarine pipeline limiting anchor chain system with the initial laying function can provide 300 tons of limiting tension by arranging the anchor chain device, and has the characteristic of large limiting tension; the effect of quick and reliable underwater connection can be achieved by arranging the deepwater starting hook.
Description
Technical Field
The utility model relates to a deep water seabed riser engineering technical field specifically is a spacing anchor chain system of submarine pipeline with originated function of laying.
Background
With the continued development of deep sea oil and gas development, Steel Catenary Risers (SCRs) have become a form of deep water riser in widespread use. It has been applied to a variety of marine platforms such as TLP platforms, semi-submersible platforms, FPSOs and the like. Under the action of the environments such as ship motion, ocean wave current and the like, a large axial load exists on the horizontal section of the SCR seabed, if the pipe soil action of a riser horizontal section is weak or the length of the horizontal section is insufficient due to the arrangement of underwater facilities, the axial tension of the bottom of the riser under extreme sea conditions can drive a submarine pipeline and end facilities to move in a one-way mode towards the motion direction of a floating platform, so that the integrity and even damage of a connector and a jumper pipe are influenced, and leakage and other problems are caused, so that the axial displacement of the pipeline of the SCR seabed section needs to be limited.
The prior art has the following defects or problems:
1. the prior art has the problem of weak limiting capability;
2. the prior art has the problems of slow underwater connection, insecure connection and single function.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's weak point, provide a spacing anchor chain system of submarine pipeline with originated function of laying to reach spacing ability big, connect reliable and fast's purpose under water.
In order to achieve the above object, the utility model provides a following technical scheme: the submarine pipeline limiting anchor chain system with the initial laying function comprises a whole system, wherein the whole system is composed of a deepwater initial hook and an anchor chain device, the anchor chain device comprises a main reinforcing ring, a special end ring, a large-outer-diameter end ring, a small-outer-diameter end ring, a common chain ring and a shackle, the special end ring is arranged at one end of the main reinforcing ring, the large-outer-diameter end ring is arranged at one end of the special end ring, the small-outer-diameter end ring is arranged at one end of the large-outer-diameter end ring, the common chain ring is arranged at one end of the small-outer-diameter end ring, the shackle is arranged on one side, away from the special end ring, of the main reinforcing ring, and a pipeline terminal is arranged at one end of the shackle.
As the utility model discloses an preferred technical scheme, the originated hook of deep water comprises the main coupler body, chain dowel, connection auxiliary cable, the chain dowel comprises round pin handle, round pin axle, oversleeve, round pin handle one end is provided with the oversleeve, be provided with the round pin axle in the oversleeve, connect auxiliary cable and constitute by needle, hawser, solid fixed ring, needle one end is provided with the hawser, hawser one end is provided with solid fixed ring.
As the utility model discloses a preferred technical scheme, main coupler body and main beaded finish swing joint, main beaded finish and special end links fixed connection, special end links and major diameter end links fixed connection, major diameter end links and minor diameter end links fixed connection, minor diameter end links and ordinary chain ring fixed connection.
As the utility model discloses a preferred technical scheme, ordinary chain ring and little external diameter end links fixed connection, little external diameter end links and big external diameter end links fixed connection, big external diameter end links and special end links fixed connection, special end links and the fixed connection of breaking out, break out and pipeline termination fixed connection.
As the preferred technical proposal of the utility model, the main hook body is made of corrosion-resistant and high-strength materials.
As the utility model discloses a preferred technical scheme, the chain fitting pin comprises round pin handle, round pin axle, oversleeve, round pin handle and oversleeve fixed connection, the round pin axle cup joints with the oversleeve.
As the utility model discloses a preferred technical scheme, connect supplementary cable and constitute by threading needle, hawser, solid fixed ring, threading needle and hawser fixed connection, hawser and solid fixed ring fixed connection.
Compared with the prior art, the utility model provides a spacing anchor chain system of submarine pipeline with originated function of laying possesses following beneficial effect:
1. the submarine pipeline limiting anchor chain system with the initial laying function comprises an anchor chain device, a main reinforcing ring, a special end ring, a large-outer-diameter end ring, a small-outer-diameter end ring, a common chain ring and a shackle, wherein the anchor chain device comprises the main reinforcing ring, the special end ring, the large-outer-diameter end ring, the small-outer-diameter end ring, the common chain ring and the shackle; one end of the anchor chain device is connected with a pipeline terminal through a shackle, and the other end of the anchor chain device is connected with the fixed end of the suction pile through an initial hook pre-installed on the suction pile, so that initial tension can be provided for the pipeline terminal during initial laying, and the effect of providing 300-ton limit tension can be achieved;
2. the submarine pipeline limiting anchor chain system with the initial laying function is characterized in that the deepwater initial hook is composed of a main hook body, a chain seal pin and a connecting auxiliary cable, and the main hook body can bear 300 tons of tension and guarantee 30 years of underwater service life under 1500 m of water depth by means of structural design form, material selection, in-place strength and fatigue design method. The chain seal pin is designed to be easy to operate by an underwater robot, and the main reinforcing ring of the anchor chain can be prevented from being separated after being locked and sealed; the auxiliary connecting cable consists of a threading needle, a mooring rope and a fixing ring, can be operated by an underwater robot, assists the connection of the main reinforcing ring and the initial hook of the anchor chain device in the initial laying process, and can achieve the effect of quick and reliable underwater connection.
Drawings
FIG. 1 is a schematic view of the anchor chain device of the present invention;
FIG. 2 is a schematic view of the structure of the auxiliary connecting cable of the present invention;
FIG. 3 is a schematic view of the deep water starting hook of the present invention;
FIG. 4 is a schematic view of the chain seal pin structure of the present invention;
fig. 5 is a schematic view of the overall structure of the present invention.
In the figure: 1. a main hook body; 2. a primary reinforcing ring; 3. a special end ring; 4. a large outer diameter end ring; 5. a small outer diameter end ring; 6. a plain chain link; 7. shackle dismounting; 8. a pipeline termination; 9. threading a needle; 10. a cable; 11. connecting an auxiliary cable; 12. a fixing ring; 13. a pin shaft; 14. sleeving sleeves; 15. a pin handle; 16. chain seal pin; 17. the system is integrated; 18. a deepwater starting hook; 19. an anchor chain device.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, in this embodiment: the utility model provides a spacing anchor chain system of submarine pipeline with originated function of laying, including the whole 17 of system, the whole 17 of system comprises the originated hook 18 of deep water and anchor chain device 19, anchor chain device 19 includes main strengthening ring 2, special end ring 3, major diameter end ring 4, minor diameter end ring 5, ordinary chain ring 6 and shackle 7, main strengthening ring 2 one end is provided with special end ring 3, special end ring 3 one end is provided with major diameter end ring 4, major diameter end ring 4 one end is provided with minor diameter end ring 5, minor diameter end ring 5 one end is provided with ordinary chain ring 6, the special end ring 3 one side of keeping away from main strengthening ring 2 is provided with shackle 7, shackle 7 one end is provided with pipeline termination 8.
In the embodiment, the deepwater starting hook 18 comprises a main hook body 1, a chain seal pin 16 and an auxiliary connecting cable 11, the chain seal pin 16 comprises a pin handle 15, a pin shaft 13 and a sleeve 14, one end of the pin handle 15 is provided with the sleeve 14, the pin shaft 13 is arranged in the sleeve 14, the auxiliary connecting cable 11 comprises a needle 9, a cable 10 and a fixing ring 12, one end of the needle 9 is provided with the cable 10, and one end of the cable 10 is provided with the fixing ring 12; the underwater connection is quick and reliable; the main hook body 1 is movably connected with a main reinforcing ring 2, the main reinforcing ring 2 is fixedly connected with a special end ring 3, the special end ring 3 is fixedly connected with a large-outer-diameter end ring 4, the large-outer-diameter end ring 4 is fixedly connected with a small-outer-diameter end ring 5, and the small-outer-diameter end ring 5 is fixedly connected with a common end ring 6 to provide 300-ton limiting tension; the ordinary chain ring 6 is fixedly connected with the small-outer-diameter end ring 5, the small-outer-diameter end ring 5 is fixedly connected with the large-outer-diameter end ring 4, the large-outer-diameter end ring 4 is fixedly connected with the special end ring 3, the special end ring 3 is fixedly connected with the shackle 7, the shackle 7 is fixedly connected with the pipeline terminal 8, and initial tension can be provided for the pipeline terminal when initial laying is carried out; the main hook body 1 is made of corrosion-resistant and high-strength materials, can bear 300 tons of tension and simultaneously ensures 30-year underwater service life under the water depth of 1500 m; the chain seal pin 16 consists of a pin handle 15, a pin shaft 13 and a sleeve 14, the pin handle 15 is fixedly connected with the sleeve 14, the pin shaft 13 is sleeved with the sleeve 14, the underwater robot operation is easy, and the anchor chain main reinforcing ring 2 can be prevented from falling off after the chain seal; the auxiliary connecting cable 11 consists of a threading needle 9, a mooring rope 10 and a fixing ring 12, the threading needle 9 is fixedly connected with the mooring rope 10, the mooring rope 10 is fixedly connected with the fixing ring 12 and can be operated by an underwater robot, and the auxiliary starting laying process is assisted by the connection of the main reinforcing ring 2 of the anchor chain device 19 and the starting hook.
The utility model discloses a theory of operation and use flow: the anchor chain device 19 is internally and tightly connected with a main reinforcing ring 2, a special end ring 3, a large-outer-diameter end ring 4, a small-outer-diameter end ring 5, a common link 6 and a shackle 7, wherein one end of the main reinforcing ring is connected with a pipeline terminal 8 through the shackle 7, the other end of the main reinforcing ring is connected with a fixed end of a suction pile through an initial hook pre-installed on the suction pile, initial tension can be provided for the pipeline terminal 8 during initial laying, the effect of providing 300 tons of limiting tension can be achieved, the deep water initial hook 18 is composed of a main hook body 1, a chain locking pin 16 and a connecting auxiliary cable 11, the main hook body 1 is designed in a structural mode, selected in-place strength and fatigue design method, and can bear 300 tons of tension to guarantee 30 years of underwater service life under 1500 m water depth. The chain seal pin 16 is designed to be easy to operate by an underwater robot, and the anchor chain main reinforcing ring 2 can be prevented from falling off after being locked and sealed; the auxiliary connecting cable 11 consists of a threading needle 9, a mooring rope 10 and a fixing ring 12, can be operated by an underwater robot, assists the connection of the main reinforcing ring 2 of the anchor chain device 19 and the deepwater starting hook 18 in the initial laying process, and can achieve the effect of quick and reliable underwater connection.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a spacing anchor chain system of submarine pipeline with start function of laying which characterized in that: the deep water anchor chain device comprises a system whole body (17), the system whole body (17) is composed of a deep water starting hook (18) and an anchor chain device (19), the anchor chain device (19) comprises a main reinforcing ring (2), a special end ring (3), a large-outer-diameter end ring (4), a small-outer-diameter end ring (5), a common chain ring (6) and a shackle (7), the special end ring (3) is arranged at one end of the main reinforcing ring (2), the large-outer-diameter end ring (4) is arranged at one end of the special end ring (3), the small-outer-diameter end ring (5) is arranged at one end of the large-outer-diameter end ring (4), the common chain ring (6) is arranged at one end of the small-outer-diameter end ring (5), the shackle (7) is arranged on one side, far away from the special end ring (3) of the main reinforcing ring (2), and a pipeline terminal (8) is arranged at one end of the shackle (7).
2. The subsea pipeline stop chain system with initial laying function as claimed in claim 1, wherein: the deepwater starting hook (18) is composed of a main hook body (1), a chain seal pin (16) and a connecting auxiliary cable (11), the chain seal pin (16) is composed of a pin handle (15), a pin shaft (13) and a sleeve (14), one end of the pin handle (15) is provided with the sleeve (14), the pin shaft (13) is arranged in the sleeve (14), the connecting auxiliary cable (11) is composed of a threading needle (9), a mooring rope (10) and a fixing ring (12), one end of the threading needle (9) is provided with the mooring rope (10), and one end of the mooring rope (10) is provided with the fixing ring (12).
3. The submarine pipeline spacing anchor chain system with initial laying function according to claim 2, wherein: the main hook body (1) is movably connected with a main reinforcing ring (2), the main reinforcing ring (2) is fixedly connected with a special end ring (3), the special end ring (3) is fixedly connected with a large-outer-diameter end ring (4), the large-outer-diameter end ring (4) is fixedly connected with a small-outer-diameter end ring (5), and the small-outer-diameter end ring (5) is fixedly connected with a common end ring (6).
4. The subsea pipeline stop chain system with initial laying function as claimed in claim 1, wherein: the common chain ring (6) is fixedly connected with the small-outer-diameter end ring (5), the small-outer-diameter end ring (5) is fixedly connected with the large-outer-diameter end ring (4), the large-outer-diameter end ring (4) is fixedly connected with the special end ring (3), the special end ring (3) is fixedly connected with the shackle (7), and the shackle (7) is fixedly connected with the pipeline terminal (8).
5. The submarine pipeline spacing anchor chain system with initial laying function according to claim 2, wherein: the main hook body (1) is made of corrosion-resistant and high-strength materials.
6. The submarine pipeline limiting anchor chain system with initial laying function according to claim 2, wherein: the chain seal pin (16) consists of a pin handle (15), a pin shaft (13) and a sleeve (14), the pin handle (15) is fixedly connected with the sleeve (14), and the pin shaft (13) is sleeved with the sleeve (14).
7. The submarine pipeline limiting anchor chain system with initial laying function according to claim 2, wherein: the auxiliary connecting cable (11) is composed of a threading needle (9), a mooring rope (10) and a fixing ring (12), the threading needle (9) is fixedly connected with the mooring rope (10), and the mooring rope (10) is fixedly connected with the fixing ring (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120361974.8U CN216843391U (en) | 2021-02-09 | 2021-02-09 | Submarine pipeline limiting anchor chain system with initial laying function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120361974.8U CN216843391U (en) | 2021-02-09 | 2021-02-09 | Submarine pipeline limiting anchor chain system with initial laying function |
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| Publication Number | Publication Date |
|---|---|
| CN216843391U true CN216843391U (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120361974.8U Active CN216843391U (en) | 2021-02-09 | 2021-02-09 | Submarine pipeline limiting anchor chain system with initial laying function |
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| Country | Link |
|---|---|
| CN (1) | CN216843391U (en) |
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2021
- 2021-02-09 CN CN202120361974.8U patent/CN216843391U/en active Active
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