CN220483507U - Submarine mooring tensioner - Google Patents
Submarine mooring tensioner Download PDFInfo
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- CN220483507U CN220483507U CN202322139400.8U CN202322139400U CN220483507U CN 220483507 U CN220483507 U CN 220483507U CN 202322139400 U CN202322139400 U CN 202322139400U CN 220483507 U CN220483507 U CN 220483507U
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- 238000005299 abrasion Methods 0.000 description 3
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Abstract
The utility model relates to the technical field of mooring tensioners, in particular to a submarine mooring tensioner which comprises a frame, wherein the frame comprises a mounting base and a bucket-shaped groove body, wherein the mounting base is used for being arranged on a seabed and preventing overturning and sedimentation; the chain guide block is erected and fixed in the bucket-shaped groove body, and the locking pin is limited in the bucket-shaped groove body and can move relative to the chain guide block; a chain passing channel for the external anchor chain to pass through is formed between the outer walls of the locking pin and the chain guide block and the inner wall of the bucket-shaped groove body, and the external anchor chain can be clamped between the locking pin and the chain guide block or can normally pass through the locking pin and the chain guide block within the caliber range of the chain passing channel. The utility model overcomes the defect of complicated locking operation action of the existing tensioner, can be installed and fixed on the sea bottom, adjusts the tension of the anchor chain between the fan and the tugboat, has reasonable design and reliable performance, and has simple and reliable locking operation.
Description
Technical Field
The utility model relates to the technical field of mooring tensioners, in particular to a submarine mooring tensioner.
Background
For the previous years, offshore wind farms have typically been built in relatively shallow water close to the land. In recent years, offshore wind power has come into the spotlight worldwide, and the current installed amount is continuously increasing, so that offshore space has become smaller and smaller. In order to realize further emission reduction, the trend of the offshore wind power to the deep sea has become great trend, along with the rapid development of the offshore wind power industry, the water depth of the offshore wind power field is continuously increased, the floating type offshore wind power has the advantages of being strong in adaptation to deep water conditions, being capable of better utilizing wind energy resources and the like, but the manufacturing cost of the floating type offshore wind power is much more expensive than that of a fixed type offshore wind power foundation, and the mooring system occupies a large cost proportion. The traditional ocean engineering mooring is mainly characterized in that a steel catenary and a fiber rope are used for tensioning and mooring, the catenary is used for mooring on the seabed, the whole weight is large, the fiber rope is used for mooring, the weight is light, but the fiber rope is required to be tensioned, the fiber rope is prevented from loosening, and the fiber rope is prevented from being worn and broken due to contact with the seabed, so that a tensioner is used for tensioning and locking the steel catenary or the fiber rope in the tensioning process.
The existing tensioners have different locking actions and structural designs on the anchor chain, and after the existing tensioners are locked by adopting the chain locking module, the operation of the upper pin and the lower pin of the chain locking module is performed by using an underwater robot or special underwater operation, so that the locking and unlocking actions are realized, the operation is complex, and the equipment cost investment is large.
Disclosure of Invention
The utility model aims to overcome the defect of complicated locking operation action of the existing tensioner and provides a submarine mooring tensioner. The utility model can be installed and fixed on the sea bottom, can adjust the tension of the anchor chain between the fan and the tugboat, has reasonable design and reliable performance, and is simple and reliable in locking and stopping.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a subsea mooring tensioner comprising a frame comprising a mounting base for positioning on the seabed and preventing roll-over settlement, and a bucket-shaped tank secured to the mounting base; the chain guide block is erected and fixed in the bucket-shaped groove body, and the locking pin is limited in the bucket-shaped groove body and can move relative to the chain guide block; a chain passing channel for the external anchor chain to pass through is formed between the outer walls of the locking pin and the chain guide block and the inner wall of the bucket-shaped groove body, and the external anchor chain can be clamped between the locking pin and the chain guide block or can normally pass through the locking pin and the chain guide block within the caliber range of the chain passing channel.
The two ends of the external anchor chain are respectively connected with the sea tug and the floating wind power platform, the external anchor chain passes through the chain passage, and the caliber range of the chain passage is changed through the relative movement of the locking pin relative to the chain guide block, so that the locking and unlocking of the external anchor chain are realized, the tension of the external anchor chain can be controlled, and the external anchor chain maintains the tension through the utility model. The device has the greatest advantages that the device can continuously maintain stable tension, the unilateral locking design can effectively ensure the impact of ocean wave current load, and the stability of the structure is greatly improved.
Further, the device also comprises a mooring rope, one end of the mooring rope is connected with the locking pin, the other end of the mooring rope is used for being connected with the external tug, and the locking pin is pulled by the external tug through the mooring rope and moves in the bucket-type groove body relative to the guide chain block. It should be noted that, the end of the locking pin may be provided with a fixing hole for fixing the mooring rope; the external tugboat is pulled to pull the locking pin away from the guide chain block, so that the caliber range of the chain passing channel is enlarged, the external anchor chain can normally pass at the moment, the length and the tension of the anchor chains at the left side and the right side of the marine wind power platform can be adjusted until the length and the tension of the anchor chains are adjusted to a proper range, and the active extension and the shortening of the anchor chains between the marine wind power platform and the tugboat can be realized, so that the tension can be adjusted more flexibly.
Further, the installation base is a ship-shaped plane bottom plate which can be used for preventing overturning and sedimentation. The utility model is placed on the seabed, so that after enough gravity is ensured to sink into the seabed, the whole installation base cannot move at will, and the settlement risks of sand, silt or sand and the like possibly existing on the seabed need to be overcome, the ship-shaped plane bottom plate can be ensured to be firmly arranged on the seabed, and the peripheral side of the ship-shaped plane bottom plate is provided with an outwards extending inclined plane, so that even if displacement is dragged, the ship-shaped plane bottom plate has a certain buffering effect, rollover or overturning phenomenon is not easy to occur under strong dragging, the structure design is stabilized, the installation base surface is large enough, and the stability of the structure are ensured.
Furthermore, a connecting pin is further arranged on one side of the mounting base. The connecting pin is used for connecting another external anchor chain and connecting and fixing the mounting base with a fixed anchor in the seabed, so that the position of the tensioner is limited, and a better tensioning effect is achieved.
Further, the inner wall of one side of the bucket-shaped groove body is an inclined plane, a shielding beam which is positioned above the inclined plane and protrudes out of the opening of the bucket-shaped groove body is further arranged on the bucket-shaped groove body, and the locking pin is limited between the shielding beam and the bottom of the bucket-shaped groove body and one side surface of the locking pin contacts and moves on the inclined plane.
Further, the chain guide block is an arc-shaped chain guide block, one side of the arc-shaped chain guide block, which is contacted with an external anchor chain, is provided with a chain guide groove, and the chain passing channel is a U-shaped channel with one end with a changeable caliber range along with the movement of the locking pin.
Further, the locking pin is a wedge-shaped locking pin, the small caliber end of the wedge-shaped locking pin faces the bottom of the bucket-shaped groove body, one side, in contact with the inclined plane, of the locking pin is a plane, and a plurality of protruding blocks used for clamping the external anchor chain link are arranged on one side, in contact with the external anchor chain, of the locking pin.
It should be noted that the locking principle of the present utility model is: the locking pin adopts a wedge-shaped structure, the caliber range of the chain passing channel can be reduced to be fixedly clamped with the external anchor chain along with the movement of the wedge-shaped locking pin, and when the external anchor chain is pulled from the side of the floating wind power platform after the external anchor chain is worn, the wedge-shaped locking pin gradually moves towards the bottom of the bucket-shaped groove body under the pulling of the external anchor chain until the external anchor chain is clamped, so that automatic locking is realized; when the external anchor chain is pulled from the tug side in the opposite direction, the lug of the wedge-shaped locking pin is gradually far away from the bottom of the bucket-shaped groove body under the friction of the external anchor chain, so that the clamping limit of the external anchor chain is released, automatic unlocking is realized, and because the locking pin has gravity, in order to reduce the tension load of pulling the external anchor chain on the tug side, the better automatic unlocking is realized, and the locking pin is actively pulled away from the bottom of the bucket-shaped groove body through the mooring rope, so that the locking of the external anchor chain is released, the friction and abrasion of the locking pin and the external anchor chain can be reduced, and the service life is prolonged. Under the action of ocean wave load, the utility model can continuously keep stable tension action, an external anchor chain can have proper tension action in the transmission process, and can ensure the impact of the ocean wave load.
Further, the distance between two adjacent lugs is greater than one link length of the outer anchor chain. In this way, the lugs can better snap into the links of the outer anchor chain to achieve a grip.
As a preferable scheme, the inclined plane is provided with an arc boss which is integrally formed with the inclined plane and the surface of which is flush with the surface of the inclined plane.
As another preferable scheme, the inclined plane is embedded with a roller with the roller surface being flush with the surface of the inclined plane.
In order to further reduce friction and abrasion of the locking pin and an external anchor chain and reduce tensile load required to be provided for unlocking, the utility model designs the inclined plane to be an arc boss or a roller, and both designs are designed to reduce friction force, so that the tensile load required to be pulled up is reduced, and thus, the unlocking difficulty can be reduced and the unlocking efficiency can be improved.
Compared with the prior art, the utility model has the beneficial effects that:
(1) The external anchor chain is kept in tension by the utility model, the two ends of the external anchor chain are respectively connected with the sea tug and the floating wind power platform, the external anchor chain passes through the chain passage, and the caliber range of the chain passage is changed by the relative movement of the locking pin relative to the chain guide block, so that the locking and unlocking of the external anchor chain are realized, and the tension of the external anchor chain can be controlled.
(2) Under the action of ocean wave load, the utility model can continuously keep stable tension action, an external anchor chain can have proper tension action in the transmission process, and can ensure the impact of the ocean wave load.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a top view of the present utility model;
FIG. 3 is an internal schematic view of the present utility model when locked;
fig. 4 is an internal schematic view of the utility model when unlocked.
The graphic indicia are illustrated as follows:
the cable guide device comprises a frame 1, a mounting base 11, a connecting pin 111, an inclined plane 121, a shielding beam 123, a bucket-shaped groove body 12, a chain guide block 2, a locking pin 3, a protruding block 31, a 4-chain passing channel 4 and a 5-mooring rope.
Detailed Description
The utility model is further described below in connection with the following detailed description. Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the utility model, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the utility model correspond to the same or similar components; in the description of the present utility model, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present utility model and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.
Example 1
As shown in fig. 1, a subsea mooring tensioner comprises a frame 1, the frame 1 comprising a mounting base 11 for being placed on the seabed and preventing roll-over settlement, and a bucket-shaped tank 12 fixed to the mounting base 11; the chain guide block 2 is erected and fixed in the bucket-shaped groove body 12, and the locking pin 3 is limited in the bucket-shaped groove body 12 and can move relative to the chain guide block 2; a chain passing channel 4 for the external anchor chain to pass through is formed between the locking pin 3 and the outer wall of the chain guide block 2 and the inner wall of the bucket-shaped groove body 12, and the external anchor chain can be clamped between the locking pin 3 and the chain guide block 2 or can normally pass through the locking pin 3 and the chain guide block 2 within the caliber range of the chain passing channel 4.
As shown in fig. 1, in this embodiment, the bucket-shaped tank 12 has a tank shape with an opening on the top side and a hollow interior on the side.
It should be noted that, the two ends of the external anchor chain are respectively connected with the sea tug and the floating wind power platform, the external anchor chain passes through the chain passage 4, and the caliber range of the chain passage 4 is changed by the relative movement of the locking pin 3 relative to the chain guide block 2, so that the locking and unlocking of the external anchor chain are realized, the tension of the external anchor chain can be controlled, and the external anchor chain maintains the tension through the device of the embodiment. The device of the embodiment has the greatest advantages that the device can continuously keep stable tension effect, the unilateral locking design can effectively ensure the impact of ocean wave current load, and the stability of the structure is greatly improved.
As shown in fig. 3 and 4, the rope hoist further comprises a mooring rope 5 having one end connected to the locking pin 3 and the other end for connecting to the external tug, and the locking pin 3 is pulled by the external tug through the mooring rope 5 and moves in the bucket groove 12 relative to the chain guide block 2. The end of the locking pin 3 may be provided with a fixing hole for fixing the mooring line 5; the locking pin 3 is pulled to be far away from the chain guide block 2 through the traction of the external tugboat, so that the caliber range of the chain passing channel 4 is enlarged, the external anchor chain can normally pass at the moment, the length and the tension of the anchor chains at the left side and the right side can be adjusted at the moment until the length and the tension of the anchor chains are adjusted to the proper range, and the active extension and the shortening of the anchor chains between the offshore wind power platform and the tugboat can be realized, so that the tension can be adjusted more flexibly.
As shown in fig. 1 to 4, the mounting base 11 is a boat-type planar base plate that can be used to prevent roll-over settlement. The ship type plane bottom plate is placed on the seabed, so after guaranteeing that enough gravity sinks into the seabed, the whole installation base 11 can not move at will, and needs to overcome the settlement risk such as quicksand, silt or grit that the seabed probably exists, adopt ship type plane bottom plate to guarantee that it is firmly settled on the seabed, and ship type plane bottom plate week side has the inclined plane of outside extension, even under the condition that the displacement is towed, can have certain buffering broken thing effect, be difficult for taking place to turn on one's side or turn over the phenomenon under strong towing, stable structural design, the installation base face of sufficient size, guarantee the stationarity and the stability of structure.
As shown in fig. 2 to 4, a connection pin 111 is further provided at one side of the mounting base 11. The connecting pin 111 is used for connecting another external anchor chain and connecting and fixing the mounting base 11 with a fixed anchor in the seabed, limiting the position of the device of the embodiment, and playing a better tensioning effect.
As shown in fig. 3 and 4, the inner wall of one side of the bucket-shaped groove body 12 is an inclined surface 121, a shielding beam 123 which is positioned above the inclined surface 121 and protrudes out of the opening of the bucket-shaped groove body 12 is further arranged on the bucket-shaped groove body 12, and the locking pin 3 is limited between the shielding beam 123 and the bottom of the bucket-shaped groove body 12, and one side surface of the locking pin moves in contact with the inclined surface 121.
As shown in fig. 3 and 4, the chain guide block 2 is an arc-shaped chain guide block, one side of the arc-shaped chain guide block, which is in contact with an external anchor chain, is arc-shaped, and is provided with a chain guide groove 21, and the chain passing channel 4 is a U-shaped channel with one end having a variable caliber range along with the movement of the locking pin 3.
As shown in fig. 3 and 4, the locking pin 3 is a wedge-shaped locking pin, the small caliber end of the wedge-shaped locking pin faces the bottom of the bucket-shaped groove body 12, one side of the locking pin 3, which is contacted with the inclined plane 121, is a plane, and one side of the locking pin 3, which is contacted with the external anchor chain, is provided with a plurality of protruding blocks 31 for clamping the external anchor chain link.
In this embodiment, the distance between two adjacent lugs 31 is greater than one link length of the outer chain. In this way, the lugs 31 can better snap into the links of the outer anchor chain to achieve a clamping.
The locking principle of this embodiment is: the locking pin 3 adopts a wedge-shaped structure, the caliber range of the chain passing channel 4 can be reduced to be fixedly clamped with the external anchor chain along with the movement of the wedge-shaped locking pin, and after the external anchor chain is penetrated, the wedge-shaped locking pin gradually moves towards the bottom of the bucket-shaped groove body 12 under the pulling of the external anchor chain when the external anchor chain is pulled from the side of the floating wind power platform as shown in fig. 3 until the external anchor chain is clamped, so that automatic locking is realized; as shown in fig. 4, when the external anchor chain is pulled from the opposite direction of the tug side, the convex block 31 of the wedge-shaped locking pin gradually gets away from the bottom of the bucket-shaped groove body 12 under the friction of the external anchor chain, so that the clamping restriction on the external anchor chain is released, automatic unlocking is realized, and because the locking pin 3 has gravity, in order to reduce the tension load of pulling the external anchor chain from the tug side, the locking pin 3 is actively pulled away from the bottom of the bucket-shaped groove body 12 by the mooring rope 5, so that the locking of the external anchor chain is released, the friction and abrasion of the locking pin 3 and the external anchor chain can be reduced, and the service life is prolonged. Under the action of ocean wave load, the embodiment can continuously keep stable tension, an external anchor chain can have proper tension in the transmission process, the impact of the ocean wave load can be ensured, and the structure has a locking function under the condition of non-active release due to the unilateral self-locking design of the embodiment.
Example 2
This embodiment is similar to embodiment 1, except that in this embodiment:
as shown in fig. 3 and 4, an arc boss integrally formed with the inclined surface 121 and having a surface flush with the surface of the inclined surface 121 is provided on the inclined surface 121 of one side inner wall of the bucket-shaped groove body 12.
It should be noted that, in order to further reduce friction wear between the locking pin 3 and the external anchor chain, and also in order to reduce the tensile load required for unlocking, the inclined plane 121 is designed to be an arc boss mode so as to reduce the frictional force, thereby reducing the tensile load required for pulling up, and thus, not only the unlocking difficulty can be reduced, but also the unlocking efficiency can be improved.
Other structures and principles of this embodiment are the same as those of embodiment 1.
Example 3
This embodiment is similar to embodiment 1, except that in this embodiment:
as shown in fig. 3 and 4, a roller with a roller surface flush with the surface of the inclined surface 121 is embedded on the inclined surface 121 of one side inner wall of the bucket-shaped groove body 12.
It should be noted that, in order to further reduce friction wear between the locking pin 3 and the external anchor chain, and also to reduce the tensile load required for unlocking, the inclined plane 121 is designed in a roller manner so as to reduce the frictional force, thereby reducing the tensile load required for pulling up, and thus, not only the unlocking difficulty can be reduced, but also the unlocking efficiency can be improved.
Other structures and principles of this embodiment are the same as those of embodiment 1.
It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.
Claims (10)
1. A subsea mooring tensioner, characterized by comprising a frame (1), the frame (1) comprising a mounting base (11) for resting on the seabed and preventing roll-over settlement, and a bucket-shaped tank (12) fixed to the mounting base (11); the chain guide block (2) is erected and fixed in the bucket-shaped groove body (12), and the locking pin (3) is limited in the bucket-shaped groove body (12) and can move relative to the chain guide block (2); a chain passing channel (4) for passing an external anchor chain is formed between the locking pin (3) and the outer wall of the chain guide block (2) and the inner wall of the bucket-shaped groove body (12), and the external anchor chain can be clamped between the locking pin (3) and the chain guide block (2) or can normally pass between the locking pin (3) and the chain guide block (2) within the caliber range of the chain passing channel (4).
2. A subsea mooring tensioner according to claim 1, further comprising a mooring line (5) connected at one end to the locking pin (3) and at the other end for connection to an external tug, the locking pin (3) being pulled by the external tug through the mooring line (5) and being moved in the bucket channel (12) relative to the chain guide block (2).
3. A subsea mooring tensioner according to claim 1 or 2, wherein the mounting base (11) is a boat-type planar floor which is operable to prevent roll-over settlement.
4. A subsea mooring tensioner according to claim 1 or 2, characterized in that one side of the mounting base (11) is further provided with a connecting pin (111).
5. A subsea mooring tensioner according to claim 1 or 2, characterized in that the inner wall of one side of the bucket-shaped tank body (12) is an inclined surface (121), a shielding beam (123) which is positioned above the inclined surface (121) and protrudes out of the opening of the bucket-shaped tank body (12) is further arranged on the bucket-shaped tank body (12), and the locking pin (3) is limited between the shielding beam (123) and the bottom of the bucket-shaped tank body (12) and one side surface thereof moves in contact on the inclined surface (121).
6. A subsea mooring tensioner according to claim 1 or 2, characterized in that the chain guide block (2) is an arc-shaped chain guide block, the side of the arc-shaped chain guide block contacting the external anchor chain is arc-shaped and provided with a chain guide groove (21), and the chain passage channel (4) is a U-shaped channel with one end having a variable caliber range along with the movement of the locking pin (3).
7. A subsea mooring tensioner according to claim 5, characterized in that the locking pin (3) is a wedge-shaped locking pin, the small bore end of the wedge-shaped locking pin is directed towards the bottom of the bucket channel (12), the side of the locking pin (3) in contact with the inclined surface (121) is a plane, and the side of the locking pin (3) in contact with the external anchor chain is provided with a number of projections (31) for clamping the external anchor chain link.
8. A subsea mooring tensioner according to claim 7, characterized in that the distance between two adjacent lugs (31) is larger than one link length of the outer anchor chain.
9. A subsea mooring tensioner according to claim 7, characterized in that the ramp (121) is provided with a circular arc boss integrally formed with the ramp (121) and having a surface flush with the surface of the ramp (121).
10. A subsea mooring tensioner according to claim 7, characterized in that the bevel (121) is embedded with rollers having a tread flush with the surface of the bevel (121).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322139400.8U CN220483507U (en) | 2023-08-09 | 2023-08-09 | Submarine mooring tensioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322139400.8U CN220483507U (en) | 2023-08-09 | 2023-08-09 | Submarine mooring tensioner |
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| Publication Number | Publication Date |
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| CN220483507U true CN220483507U (en) | 2024-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202322139400.8U Active CN220483507U (en) | 2023-08-09 | 2023-08-09 | Submarine mooring tensioner |
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| Country | Link |
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| CN (1) | CN220483507U (en) |
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2023
- 2023-08-09 CN CN202322139400.8U patent/CN220483507U/en active Active
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