Deep sea floating type wind power tension leg platform mooring device

Abstract

The invention provides a deep sea floating type wind power tension leg platform mooring device which comprises a top connector, a steel cable and a bottom connector, the top connector comprises a clamping device, a middle column, a supporting device and a support structure, the interior of the clamping device is connected with the upper portion of the middle column in a locking mode, the lower portion of the clamping device is connected with the supporting device, the supporting device is connected with the support structure, and the steel cable is connected with the bottom connector. The support structure is connected to the tension leg platform. The top of the middle column is connected with the installation cable, the bottom of the middle column is connected with one side of the steel cable, the other side of the steel cable is connected with the bottom connector, and the bottom connector is connected with the seabed anchoring part. The device is simple in structure and light in weight, meets the use requirements of platform mooring, and has the characteristics of low cost and easiness in batch production.

Description

Technical Field

[0001] The present invention relates to the technical field of mooring systems, and in particular to a mooring device for a deep-sea floating wind power tension leg platform. Background Art

[0002] With the rapid development of my country's offshore wind power industry, the engineering of floating wind turbine technology has received unprecedented attention in my country, and the comprehensive promotion of offshore wind power parity demonstration and large-scale development has entered an important stage. According to the offshore wind power plans of various provinces approved by the state, the total amount of offshore wind power exceeds 300 million kilowatts, but the offshore space resources are limited, of which more than 90% are conventional deep-sea wind power projects. However, due to technical limitations, the cost of deep-sea wind power is still relatively high, and more than 30% of the cost of deep-sea floating wind power comes from the platform. The tension leg platform is adapted to the application of wind power technology and is expected to become the mainstream structural type. The mooring device is an important part of the platform. The mooring device of the tension leg platform mainly includes two parts: connectors and tendons.

[0003] Traditional floating oil and gas production tension leg platforms are large in size, and the mooring device bears a large load. The tendons in the mooring device are in the form of steel pipes. The top connector uses a toothed engagement method to clamp the tendons, and the metal and rubber composite materials provide flexible unit support, which can not only bear tension but also achieve horizontal swing. The bottom connector is a rotary lock mechanism, and the middle connection of the steel pipe uses a special pipe connector. Deep-sea floating wind power tension leg platforms are different from traditional oil production platforms in terms of water depth, carrying capacity, safety performance, and usage scenarios. In addition, wind power has batch characteristics. The mooring device of traditional platforms is complex in structure and expensive. It is difficult for users to accept the application of traditional tension leg platform mooring devices to floating wind power, and it is not conducive to the low-cost promotion of floating wind power. Therefore, there is an urgent need to develop simple and low-cost deep-sea floating wind power tension leg platform mooring devices. Summary of the invention

[0004] According to the technical problems raised above, a deep sea floating wind power tension leg platform mooring device is provided. The invention has a simple structure and light weight, meets the requirements of platform mooring, and has the characteristics of low cost and easy mass production.

[0005] The technical means adopted by the present invention are as follows:

[0006] A mooring device for a deep-sea floating wind power tension leg platform comprises: a top connector, a steel cable and a bottom connector, wherein the top connector comprises a clamp, a center column, a supporting device and a support structure, wherein the interior of the clamp is locked and connected to the top of the center column, the bottom of the clamp is connected to the supporting device, the supporting device is connected to the support structure, and the support structure is connected to the tension leg platform; the top of the center column is connected to the installation cable, the bottom of the center column is connected to one side of the steel cable, the other side of the steel cable is connected to the bottom connector, and the bottom connector is connected to a seabed anchor.

[0007] Further, the clamp comprises a tile, a support ring, a push rod, a snap ring, a top cover and a bracket, wherein the top cover is mounted on the top of the support ring, the bottom of the support ring is connected to the flange of the supporting device, an internal accommodating chamber is formed between the upper part of the support ring and the top cover, and the tile and the snap ring are located in the accommodating chamber;

[0008] The bracket is installed above the top cover, the push rod is connected to the bracket, and the lower part of the push rod is inserted into the accommodating chamber and connected to the snap ring. A groove is opened above the tile, and the snap ring is fitted and connected in the groove. The lower part of the tile is fit-connected with the support ring. The inner wall of the tile is provided with inner teeth, and the outer wall of the center column is provided with latching teeth. The inner teeth are used to cooperate with the latching teeth. By pushing the push rod downward or pulling it upward, the snap ring moves downward or upward, thereby pushing the tile toward the axis to engage with the latching teeth on the outer wall of the center column, or pulling the tile to slide along the support ring in the direction away from the center column, so as to realize the separation of the tile from the center column.

[0009] Furthermore, a limiting structure is provided on the support ring for limiting the sliding of the tile in a direction away from the center column.

[0010] Further, the limiting structure includes an inclined surface on the inner wall of the support ring and an inclined surface on the outer wall of the tile, the inclined surface on the inner wall of the support ring includes a first inclined surface and a second inclined surface, the inclined surface on the outer wall of the tile includes a third inclined surface and a fourth inclined surface, the third inclined surface is in contact with the first inclined surface, and the fourth inclined surface is in contact with the second inclined surface;

[0011] The first inclined surface is located obliquely above the second inclined surface, the second inclined surface is lower than the first inclined surface, and a bending groove is formed at the connection between the first inclined surface and the second inclined surface;

[0012] The third inclined plane is located obliquely above the fourth inclined plane, the fourth inclined plane is lower than the third inclined plane, and a bending protrusion is formed at the connection between the third inclined plane and the fourth inclined plane;

[0013] When the tile slides upward along the inclined surface of the support ring, the bending protrusion is used to engage with the bending groove to limit the sliding of the tile.

[0014] Furthermore, the tile and the support ring are both in a conical structure.

[0015] Furthermore, the groove of the tile is in a U-shaped structure, the inner wall of the groove on one side close to the center column is a downwardly inclined slope 1, and the other side wall away from the center column is a bent V-shaped structure, and the tip of the V-shaped structure faces the slope 1;

[0016] One side of the retaining ring has a second bevel and the other side has a V-shaped hook structure. The second bevel is in contact with the first bevel and slides along the first bevel to push the tile downward toward the axis. The V-shaped hook structure is used to cooperate with the bent V-shaped structure to pull the tile upward, and the bent V-shaped structure is used to limit the upward pulling of the V-shaped hook structure.

[0017] Furthermore, the push rod, the clamping ring and the bracket are provided in three groups and are evenly distributed in the circumferential direction.

[0018] Furthermore, the supporting device adopts a middle through-hole rotary thrust bearing type, which is used to achieve ±15° swing relative to the vertical direction and horizontal rotation; the supporting device includes a thrust bearing, which has a through hole in the middle, and the center column passes through the bottom of the through hole and is connected to the steel cable.

[0019] Further, the bottom connector includes a support, an upper hinge shaft, a lower hinge shaft and two H-shaped connecting pieces, and the upper hinge shaft and the lower hinge shaft are connected by a connecting rod;

[0020] The upper hinge shaft is connected to the lower part of the H-shaped connecting piece located above, and the upper part of the H-shaped connecting piece is connected to the lower end of the steel cable through the ear shaft;

[0021] The lower hinge shaft is connected to the upper part of the H-shaped connecting piece located below, the lower part of the H-shaped connecting piece is connected to the support, and the support is welded to the seabed anchor.

[0022] Furthermore, the steel cable is a whole pre-tensioned steel cable, or is formed by connecting multiple steel cables; the upper and lower ends of the tension steel cable are cast with joints, and the upper and lower joints are respectively connected to the top connector and the bottom connector through ear shafts.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] 1. The deep-sea floating wind power tension leg platform mooring device provided by the present invention relies on the push rod and its own weight to clamp the top connector during installation, and the type is simple.

[0025] 2. The deep-sea floating wind power tension leg platform mooring device provided by the present invention uses tension steel cables to connect tendons, which is simpler and lighter than the traditional platform that uses steel pipes with complex underwater joints in the length direction.

[0026] 3. The deep-sea floating wind power tension leg platform mooring device provided by the present invention has flexible steel cables, which will be twisted and deformed during transportation and installation. The supporting device of the top connector adopts a slewing thrust bearing type and is used in conjunction with the upper and lower cross hinges of the bottom connector, which can fully release the torsional stress and deformation of the steel cable. This is also the biggest difference between this device and other tension leg platform mooring devices.

[0027] Based on the above reasons, the present invention can be widely promoted in the fields of deep sea floating wind power tension leg platform mooring system and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0029] Figure 1 This is an installation diagram of the mooring device of the deep sea floating wind power tension leg platform of the present invention.

[0030] Figure 2 It is a stereoscopic diagram of the mooring device of the deep sea floating wind power tension leg platform of the present invention.

[0031] Figure 3 This is a cross-sectional view of the top connector of the present invention.

[0032] Figure 4 It is a side view of the top connector of the present invention.

[0033] Figure 5 It is a schematic diagram of the clamping tile of the clamper of the present invention and the center column.

[0034] Figure 6 It is a schematic diagram of the clamp tile of the present invention being separated from the center column.

[0035] Figure 7 It is a schematic structural diagram of the support device and the bracket structure of the present invention.

[0036] Figure 8 It is a cross-sectional view of the support device and the bracket structure of the present invention.

[0037] In the figure: 1. top connector; 2. steel cable; 3. bottom connector; 31. upper hinge; 32. connecting rod; 33. lower hinge; 34. H-shaped connector; 35. support; 4. clamp; 41. tile; 42. support ring; 43. push rod; 44. snap ring; 45. top cover; 46. bracket; 47. first inclined plane; 48. second inclined plane; 49. third inclined plane; 410. fourth inclined plane; 5. middle column; 6. supporting device; 7. bracket structure. DETAILED DESCRIPTION

[0038] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0041] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be clear that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0042] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0043] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0044] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0045] The present invention provides a deep sea floating wind power tension leg platform mooring device, which meets the platform mooring function requirements and realizes low cost and batch replication. The present invention is used for the deep sea floating wind power tension leg platform mooring system.

[0046] The device of the present invention comprises a top connector 1, a steel cable 2, and a bottom connector 3. Figure 1-8 shown.

[0047] The top connector 1 includes four parts: a clamp 4, a center column 5, a support device 6 and a support structure 7. The center column 5 is connected to the installation cable and the tension steel cable 2 through a trunnion at the top and bottom. The inside of the clamp 4 is locked and connected to the top of the center column 5, the bottom of the clamp 4 is connected to the support device 6, the support device 6 is connected to the support structure 7, and the support structure 7 is connected to the tension leg platform; the top of the center column 5 is connected to the installation cable, the bottom of the center column 5 is connected to one side of the steel cable 2, the other side of the steel cable 2 is connected to the bottom connector 3, and the bottom connector 3 is connected to the seabed anchor.

[0048] The clamp 4 includes a tile 41, a support ring 42, a push rod 43, a clamping ring 44, a top cover 45 and a bracket 46. The top cover 45 is installed on the top of the support ring 42, and the bottom of the support ring 42 is connected to the flange of the supporting device 6 thereunder. It is connected to the flange of the supporting device 6, and an internal accommodating chamber is formed between the upper part of the support ring 42 and the top cover 45, and the tile 41 and the snap ring 44 are located in the accommodating chamber; the bracket 46 is installed on the top of the top cover 45, the push rod 43 is connected to the bracket 46, and the lower part of the push rod 43 is inserted into the accommodating chamber and connected with the snap ring 44, a groove is opened on the upper part of the tile 41, and the snap ring 44 is matched and connected in the groove, and the lower part of the tile 41 is fitly connected with the support ring 42, the inner wall of the tile 41 is provided with internal teeth, and the outer wall of the center column 5 is provided with latching teeth, and the inner teeth are used to cooperate with the latching teeth, and the snap ring 44 is moved downward or upward by pushing the push rod 43 downward or pulling upward, thereby pushing the tile 41 toward the axis to engage with the latching teeth on the outer wall of the center column 5, or pulling the tile 41 to slide along the support ring 42 in the direction away from the center column 5.

[0049] The support ring 42 is provided with a limiting structure for limiting the sliding of the tile 41 in the direction away from the center column 5. The limiting structure includes an inclined surface on the inner wall of the support ring 42 and an inclined surface on the outer wall of the tile 41. The inclined surface on the inner wall of the support ring 42 includes a first inclined surface 47 and a second inclined surface 48 (the first inclined surface 47 and the second inclined surface 48 can be circumferential inclined surfaces), and the inclined surface on the outer wall of the tile 41 includes a third inclined surface 49 and a fourth inclined surface 410 (the third inclined surface 49 and the fourth inclined surface 410 can be circumferential inclined surfaces). The third inclined surface 49 is in contact with the first inclined surface 47, and the fourth inclined surface 410 is in contact with the second inclined surface 48. The first inclined surface 47 is in contact with the first inclined surface 47. At an oblique upper portion of the second inclined surface 48, the second inclined surface 48 is lower than the first inclined surface 47, and a bending groove (which may be a circular groove) is formed at the connection between the first inclined surface 47 and the second inclined surface 48; the third inclined surface 49 is located at an oblique upper portion of the fourth inclined surface 410, the fourth inclined surface 410 is lower than the third inclined surface 49, and a bending protrusion (which may be a circular protrusion) is formed at the connection between the third inclined surface 49 and the fourth inclined surface 410; when the tile 41 slides upward along the inclined surface of the support ring 42, the bending protrusion is used to engage with the bending groove to limit the sliding of the tile 41.

[0050] The tile 41 and the support ring 42 are both conical structures.

[0051] The groove of the tile 41 is a U-shaped structure, and the inner wall of the groove on one side close to the center column 5 is a downwardly inclined slope 1, and the other side wall away from the center column 5 is a bent V-shaped structure, and the tip of the V-shaped structure faces the slope 1; one side of the retaining ring 44 has a slope 2, and the other side has a V-shaped hook structure, and the slope 2 is in contact with the slope 1 and slides along the slope 1, which is used to push the tile 41 downward toward the axis; the V-shaped hook structure is used to cooperate with the bent V-shaped structure to pull the tile 41 upward to move, and at the same time, the bent V-shaped structure is used to limit the upward pulling of the V-shaped hook structure.

[0052] The push rod 43, the clamping ring 44 and the bracket 46 are provided in three groups and are evenly distributed in the circumferential direction.

[0053] Specifically, the clamp 4 pushes the tile 41 toward the axis through the push rod 43 to engage with the teeth on the outer wall of the center column 5. After engagement, the tension of the steel cable 2 and the weight of the tile 41 form a self-locking force at the engagement point. When it is necessary to disengage, the push rod 43 is pulled vertically upward, and the snap ring 44 at the bottom of the push rod 43 pulls the tile 41 to slide along the inclined surface of the support ring 42, completing the disengagement of the tile 41 from the center column 5.

[0054] The support device 6 adopts a middle through-hole slewing thrust bearing type, which supports the weight of the upper structure of the top connector 1 and bears the tension of the tension steel cable 2. The support device 6 includes a thrust bearing, and the middle of the thrust bearing is a through hole, which is convenient for the installation of the connecting parts. The center column 5 passes through the bottom of the through hole and is connected to the steel cable 2. The support device 6 can achieve ±15° swing relative to the vertical direction and can achieve horizontal rotation. The support device 6 is connected to the flange of the support structure 7, and the support structure 7 is welded to the tension leg platform.

[0055] The tension steel cable 2 is a whole pre-tensioned steel cable, and can also be formed by connecting multiple steel cables according to different water depths. The upper and lower cast joints of the steel cable are connected to the top connector 1 and the bottom connector 3 respectively through ear shafts.

[0056] The bottom connector 3 includes a support 35, upper and lower hinges and an H-shaped connector 34. The upper and lower cross hinges are connected so that the bottom connector 3 has two degrees of freedom in two directions. The support 35 of the bottom connector 3 is welded to the seabed anchor, and the H-shaped connector 34 is connected to the tension steel cable 2 through an ear shaft. Specifically, the upper hinge shaft 31 and the lower hinge shaft 33 are connected through a connecting rod 32, the upper hinge shaft 31 is connected to the lower part of the H-shaped connector 34 located above, and the upper part of the H-shaped connector 34 is connected to the lower end of the steel cable 2 through an ear shaft; the lower hinge shaft 33 is connected to the upper part of the H-shaped connector 34 located below, and the lower part of the H-shaped connector 34 is connected to the support 35.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A deep sea floating wind power tension leg platform mooring device, characterized in that: include: A top connector (1), a steel cable (2) and a bottom connector (3), wherein the top connector (1) comprises a clamp (4), a center column (5), a supporting device (6) and a support structure (7), wherein the interior of the clamp (4) is locked and connected to the top of the center column (5), the bottom of the clamp (4) is connected to the supporting device (6), the supporting device (6) is connected to the support structure (7), and the support structure (7) is connected to a tension leg platform; the top of the center column (5) is connected to the installation cable, the bottom of the center column (5) is connected to one side of the steel cable (2), the other side of the steel cable (2) is connected to the bottom connector (3), and the bottom connector (3) is connected to a seabed anchor.

2. The deep sea floating wind power tension leg platform mooring device according to claim 1 is characterized in that: The clamp (4) comprises a tile (41), a support ring (42), a push rod (43), a snap ring (44), a top cover (45) and a bracket (46), wherein the top cover (45) is mounted on the top of the support ring (42), the bottom of the support ring (42) is connected to the flange of the supporting device (6), an internal accommodating chamber is formed between the upper part of the support ring (42) and the top cover (45), and the tile (41) and the snap ring (44) are located in the accommodating chamber; The bracket (46) is installed above the top cover (45), the push rod (43) is connected to the bracket (46), and the lower part of the push rod (43) is inserted into the accommodating chamber and connected to the snap ring (44). A groove is opened above the tile (41), and the snap ring (44) is connected in the groove. The lower part of the tile (41) is closely connected to the support ring (42). The inner wall of the tile (41) is provided with internal teeth, and the outer wall of the middle column (5) is provided with latching teeth. The inner teeth are used to cooperate with the latching teeth. By pushing the push rod (43) downward or pulling it upward, the snap ring (44) is moved downward or upward, thereby pushing the tile (41) toward the axis to engage with the latching teeth on the outer wall of the middle column (5), or pulling the tile (41) to slide along the support ring (42) in the direction away from the middle column (5), so as to achieve the separation of the tile (41) from the middle column (5).

3. The deep sea floating wind power tension leg platform mooring device according to claim 2 is characterized in that: The support ring (42) is provided with a limiting structure for limiting the sliding of the tile (41) in a direction away from the center column (5).

4. The deep sea floating wind power tension leg platform mooring device according to claim 3 is characterized in that: The limiting structure comprises an inclined surface on the inner wall of the support ring (42) and an inclined surface on the outer wall of the tile (41); the inclined surface on the inner wall of the support ring (42) comprises a first inclined surface (47) and a second inclined surface (48); the inclined surface on the outer wall of the tile (41) comprises a third inclined surface (49) and a fourth inclined surface (410); the third inclined surface (49) is in contact with the first inclined surface (47), and the fourth inclined surface (410) is in contact with the second inclined surface (48); The first inclined surface (47) is located obliquely above the second inclined surface (48), the second inclined surface (48) is lower than the first inclined surface (47), and a bending groove is formed at the connection between the first inclined surface (47) and the second inclined surface (48); The third inclined surface (49) is located obliquely above the fourth inclined surface (410), the fourth inclined surface (410) is lower than the third inclined surface (49), and a bent protrusion is formed at the connection between the third inclined surface (49) and the fourth inclined surface (410); When the tile (41) slides upward along the inclined surface of the support ring (42), the bending protrusion is used to engage with the bending groove to limit the sliding of the tile (41).

5. The deep sea floating wind power tension leg platform mooring device according to claim 2 is characterized in that: The tile (41) and the support ring (42) are both in a conical structure.

6. The deep sea floating wind power tension leg platform mooring device according to claim 2, characterized in that: The groove of the tile (41) is in a U-shaped structure, the inner wall of the groove on one side close to the center column (5) is a downwardly inclined slope, and the other side wall away from the center column (5) is a bent V-shaped structure, with the tip of the V-shaped structure facing the slope. One side of the clamping ring (44) has a second inclined surface and the other side has a V-shaped hook structure. The second inclined surface is in contact with the first inclined surface and slides along the first inclined surface to push the tile (41) downward toward the axis. The V-shaped hook structure is used to cooperate with the bent V-shaped structure to pull the tile (41) upward, and the bent V-shaped structure is used to limit the upward pulling of the V-shaped hook structure.

7. The deep sea floating wind power tension leg platform mooring device according to claim 2, characterized in that: The push rod (43), the clamping ring (44) and the bracket (46) are provided in three groups and are evenly distributed in the circumferential direction.

8. The deep sea floating wind power tension leg platform mooring device according to claim 1, characterized in that: The support device (6) adopts a middle through-hole rotary thrust bearing type, which is used to achieve ±15° swing relative to the vertical direction and horizontal rotation; the support device (6) includes a thrust bearing, and the middle of the thrust bearing has a through hole, and the center column (5) passes through the bottom of the through hole and is connected to the steel cable (2).

9. The deep sea floating wind power tension leg platform mooring device according to claim 1, characterized in that: The bottom connector (3) comprises a support (35), an upper hinge shaft (31), a lower hinge shaft (33) and two H-shaped connecting pieces (34), wherein the upper hinge shaft (31) and the lower hinge shaft (33) are connected via a connecting rod (32); The upper hinge shaft (31) is connected to the lower part of an H-shaped connecting piece (34) located above, and the upper part of the H-shaped connecting piece (34) is connected to the lower end of the steel cable (2) through an ear shaft; The lower hinge shaft (33) is connected to the upper part of an H-shaped connecting piece (34) located below, the lower part of the H-shaped connecting piece (34) is connected to a support (35), and the support (35) is welded to a seabed anchor.

10. The deep sea floating wind power tension leg platform mooring device according to claim 1, characterized in that: The steel cable (2) is a whole pre-tensioned steel cable, or is formed by connecting a plurality of steel cables; the upper and lower ends of the tension steel cable (2) are cast joints, and the upper and lower joints are respectively connected to the top connector (1) and the bottom connector (3) through ear shafts.

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