TLP fan capable of reducing vibration amplitude

Abstract

The utility model relates to the technical field of TLP draught fans, and discloses a TLP draught fan capable of reducing vibration amplitude, a wind driven generator is fixedly installed at the top of a main stand column, tension tendons are fixedly installed on the lower surfaces of the three end portions of a base, a balance weight column is arranged under the main stand column, and the balance weight column is fixedly installed on the top of the main stand column. Inclined pull anchors are evenly arranged at the top end of the balance weight column in the circumferential direction of the axis of the balance weight column, horizontal pull anchors are evenly arranged at the bottom end of the balance weight column in the circumferential direction of the axis of the balance weight column, and flow guide assemblies are arranged on the portions, located between the base and the inclined pull anchors, of the tension tendons in an array mode. Downward pulling force is applied to the inclined pulling anchor and the horizontal pulling anchor, so that the upper half part of the tension tendon is further tightened, and the impact effect of water flow is resisted; under the impact effect of water flow, the rotating ring and the lantern ring deviate relative to the fixing sleeve, meanwhile, the rotating ring and the fins rotate, the impact effect of the water flow on the tension tendons is reduced, and therefore the purpose of reducing the vibration amplitude of the tension tendons under the impact of the water flow is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of TLP fans, in particular to a TLP fan capable of reducing vibration amplitude. Background Art

[0002] TLP is a tension leg platform. It is semi-compliant and semi-rigid. The buoyancy generated by its structure is much greater than gravity. After offsetting gravity, the net buoyancy of the platform is balanced with the total pre-tension of the tension tendons. The tension tendons are always straightened and taut under the action of a large pre-tension, thus ensuring that the motion response of the platform in the vertical plane (such as heave and pitch) is small, similar to a rigid system.

[0003] The Chinese patent with application date: 2023-08-31 and announcement number: CN220764626U discloses a stable mooring system suitable for a TLP platform floating wind turbine in shallow waters, including a first suction anchor, a second suction anchor, a first tension mooring and a second tension mooring. The first suction anchor is fixed to the seabed and is located directly below the TLP platform floating wind turbine. There are multiple second suction anchors, and the number of the second suction anchors is consistent with the number of columns of the TLP platform floating wind turbine and corresponds one to one. The multiple second suction anchors are respectively fixed to the seabed and distributed around the first suction anchor in a circumferential direction. The first tension mooring and the second tension mooring are respectively connected to the columns of each TLP platform floating wind turbine. The multiple first tension moorings are gathered to the first suction anchor in a gathered shape and connected to the first suction anchor. The multiple second tension moorings are dispersedly arranged around the TLP platform floating wind turbine and are respectively connected to the multiple second suction anchors in a one-to-one correspondence. The utility model can effectively solve the problem that lightweight and low-cost TLP platform floating wind turbines cannot be applied to shallow waters.

[0004] In this technical solution, the stability of the tension leg platform is increased by cooperating with the first tension mooring and the second tension mooring. However, under the impact of water flow, the first tension mooring and the second tension mooring may shake, which may easily cause fatigue damage to the tension mooring and reduce its service life. Further improvements can be made. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a TLP fan with reduced vibration amplitude, which has the advantages of reducing the vibration amplitude of the tension tendon under the impact of water flow, and solves the problem of the tension tendon shaking under the impact of water flow.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose of reducing the vibration amplitude of tension tendons under the impact of water flow, the utility model provides the following technical solutions: a TLP wind turbine with reduced vibration amplitude, comprising a main column and three auxiliary columns, the three auxiliary columns are evenly arranged circumferentially with the main column as the center, the bottom of the main column and the bottom of the three auxiliary columns are fixedly installed through a base, a wind turbine is fixedly installed on the top of the main column, tension tendons are fixedly installed on the lower surfaces of the three ends of the base, and the other end of the tension tendons is installed on the seabed, a counterweight column is arranged directly below the main column, and the top of the counterweight column is evenly provided with inclined anchors along the circumference of its axis, and the other end of the inclined anchor is fixedly installed on the tension tendons, and the bottom of the counterweight column is evenly provided with horizontal anchors along the circumference of its axis, and the other end of the horizontal anchor is connected to the tension tendons, and a guide assembly is provided on the partial array of the tension tendons located between the base and the inclined anchors.

[0009] Preferably, two tension tendons are fixedly mounted on the lower surface of each end of the base.

[0010] Preferably, three groups of U-shaped holes 1 are opened in the circular array on the upper half of the counterweight column, and three groups of U-shaped holes 2 are opened in the circular array on the lower half of the counterweight column. Both the U-shaped holes 1 and 2 are U-shaped, the U-shaped hole 1 is inclined, and the U-shaped hole 2 is horizontal. The inclined anchor passes through the inside of the U-shaped hole 1, and the two ends of the inclined anchor are fixedly installed on the surfaces of the two tension tendons. The horizontal anchor passes through the inside of the U-shaped hole 2, and the two ends of the horizontal anchor are fixedly installed on the surfaces of the two tension tendons.

[0011] Preferably, the guide assembly includes a fixed sleeve fixedly installed on the outside of the tension tendon, sealing rings are fixedly installed on both ends of the fixed sleeve, a ring is provided on the outside of the fixed sleeve, springs are arranged in an array between the outer wall of the fixed sleeve and the inner wall of the ring, a swivel is provided on the outside of the ring, and fins are arranged in an array on the circumferential surface of the swivel.

[0012] Preferably, the outer side of the spring is provided with sleeve one and sleeve two, one end of sleeve one is fixedly mounted on the outer wall of the fixed sleeve, the other end of sleeve one is inserted into sleeve two, and the end of sleeve two away from sleeve one is fixedly mounted on the inner wall of the ring.

[0013] Preferably, the fins are spiral-shaped.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a TLP fan with reduced vibration amplitude, which has the following beneficial effects:

[0016] The TLP fan with reduced vibration amplitude applies downward pulling force to the inclined anchor and the horizontal anchor through the weight of the counterweight column, and then applies pulling force toward the central axis of the counterweight column to the tension tendon through the inclined anchor and the horizontal anchor, so that the upper part of the tension tendon is further tightened to resist the impact of the water flow; under the impact of the water flow, the swivel and the sleeve are offset relative to the fixed sleeve, and the swivel and the fin rotate at the same time, and when the fin rotates, the water flow flows upward or downward, reducing the impact effect of the water flow on the tension tendon. Thus, the purpose of reducing the vibration amplitude of the tension tendon under the impact of the water flow is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a TLP fan for reducing vibration amplitude proposed by the utility model;

[0018] Figure 2 This is a three-dimensional structural schematic diagram of a base and tension tendons of a TLP fan for reducing vibration amplitude proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of a three-dimensional assembly structure of a counterweight column, an inclined anchor, and a horizontal anchor of a TLP fan for reducing vibration amplitude proposed by the utility model;

[0020] Figure 4 This is a schematic diagram of a three-dimensional cross-section structure of a counterweight column of a TLP fan for reducing vibration amplitude proposed by the utility model;

[0021] Figure 5 This is a schematic diagram of a three-dimensional exploded structure of a guide assembly of a TLP fan for reducing vibration amplitude proposed by the utility model;

[0022] Figure 6 This is a schematic diagram of the three-dimensional structure of a guide assembly of a TLP fan for reducing vibration amplitude proposed by the utility model.

[0023] In the figure: 1. main column; 2. auxiliary column; 3. base; 4. wind turbine; 5. tension tendon; 6. counterweight column; 7. inclined anchor; 8. horizontal anchor; 9. guide assembly; 601. U-shaped hole one; 602. U-shaped hole two; 901. fixing sleeve; 902. sealing ring; 903. sleeve ring; 904. spring; 905. swivel; 906. fin; 907. sleeve one; 908. sleeve two. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 6 A TLP wind turbine for reducing vibration amplitude comprises a main column 1 and three auxiliary columns 2. The three auxiliary columns 2 are evenly arranged around the main column 1. The bottom of the main column 1 and the bottom of the three auxiliary columns 2 are fixedly installed through a base 3. A wind turbine 4 is fixedly installed on the top of the main column 1. Tension tendons 5 are fixedly installed on the lower surface of the three ends of the base 3. The other end of the tension tendons 5 is installed on the seabed. Two tension tendons 5 are fixedly installed on the lower surface of each end of the base 3. A counterweight column 6 is arranged directly below the main column 1. The top of the counterweight column 6 is evenly arranged with inclined anchors 7 along the circumference of its axis. The other end of the inclined anchor 7 is fixedly installed on the tension tendon 5. The bottom of the counterweight column 6 is evenly arranged with horizontal anchors 8 along the circumference of its axis. The other end of the horizontal anchor 8 is connected to the tension tendon 5. A flow guide assembly 9 is arranged on the partial array of the tension tendons 5 located between the base 3 and the inclined anchor 7. The weight of the counterweight column 6 applies downward pulling force to the inclined anchor 7 and the horizontal anchor 8, and then the inclined anchor 7 and the horizontal anchor 8 apply pulling force to the tension tendon 5 toward the central axis of the counterweight column 6, so that the upper part of the tension tendon 5 is further tightened to resist the impact of the water flow.

[0026] See also Figure 4 The upper half of the counterweight column 6 is provided with three groups of U-shaped holes 1 601 in an array, and the lower half of the counterweight column 6 is provided with three groups of U-shaped holes 2 602 in an array. The U-shaped holes 1 601 and 602 are both U-shaped, the U-shaped holes 1 601 are inclined, and the U-shaped holes 2 602 are horizontal. The inclined anchor 7 passes through the inside of the U-shaped hole 1 601, and the two ends of the inclined anchor 7 are fixedly installed on the surface of the two tension tendons 5. The horizontal anchor 8 passes through the inside of the U-shaped hole 2 602, and the two ends of the horizontal anchor 8 are fixedly installed on the surface of the two tension tendons 5. Thus, the inclined anchor 7 and the horizontal anchor 8 can slide relative to the counterweight column 6, and the inclined anchor 7 and the horizontal anchor 8 are divided into two strands by the counterweight column 6. When assembling, the two strands of the inclined anchor 7 and the horizontal anchor 8 can be kept equal in length after being connected to the two tension tendons 5.

[0027] See also Figure 5-Figure 6The flow guide assembly 9 includes a fixed sleeve 901 fixedly installed on the outside of the tension tendon 5, a sealing ring 902 is fixedly installed at both ends of the fixed sleeve 901, a collar 903 is sleeved on the outside of the fixed sleeve 901, a spring 904 is arranged in an array between the outer wall of the fixed sleeve 901 and the inner wall of the collar 903, a swivel 905 is sleeved on the outside of the collar 903, and fins 906 are arranged in an array on the circumferential surface of the swivel 905. Through the elasticity of the spring 904, when the water flow impacts the swivel 905, the swivel 905 and the collar 903 can be offset relative to the fixed sleeve 901. And through the setting of the fin 906, under the impact of the water flow, the swivel 905 can rotate relative to the collar 903. The fin 906 is spiral. Under the impact of the water flow, the fin 906 and the swivel 905 rotate, and the water flow flows upward or downward. The outer side of the spring 904 is sleeved with a sleeve 1 907 and a sleeve 2 908, one end of the sleeve 1 907 is fixedly mounted on the outer wall of the fixed sleeve 901, the other end of the sleeve 1 907 is inserted into the inside of the sleeve 2 908, and the end of the sleeve 2 908 away from the sleeve 1 907 is fixedly mounted on the inner wall of the collar 903. The gap between the fixed sleeve 901 and the collar 903 is sealed by the sealing ring 902, and the spring 904 is protected from the outside by the sleeve 1 907 and the sleeve 2 908 to prevent the spring 904 from being corroded by seawater.

[0028] During operation, the weight of the counterweight column 6 applies downward tension to the inclined anchor 7 and the horizontal anchor 8, and then the inclined anchor 7 and the horizontal anchor 8 apply tension to the tension tendon 5 toward the central axis of the counterweight column 6, so that the upper part of the tension tendon 5 is further tightened to resist the impact of the water flow;

[0029] Under the impact of water flow, the swivel 905 and the ring 903 are offset relative to the fixed sleeve 901, and the swivel 905 and the fin 906 rotate at the same time. When the fin 906 rotates, the water flows upward or downward, reducing the impact effect of the water flow on the tension tendon 5.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A TLP wind turbine for reducing vibration amplitude, comprising a main column (1) and three auxiliary columns (2), wherein the three auxiliary columns (2) are evenly arranged circumferentially around the main column (1), the bottom of the main column (1) and the bottoms of the three auxiliary columns (2) are fixedly installed through a base (3), and a wind turbine (4) is fixedly installed on the top of the main column (1), characterized in that: Tension tendons (5) are fixedly mounted on the lower surfaces of the three ends of the base (3), and the other ends of the tension tendons (5) are mounted on the seabed. A counterweight column (6) is arranged directly below the main column (1), and inclined anchors (7) are evenly arranged at the top of the counterweight column (6) along the circumference of its axis, and the other ends of the inclined anchors (7) are fixedly mounted on the tension tendons (5). Horizontal anchors (8) are evenly arranged at the bottom of the counterweight column (6) along the circumference of its axis, and the other ends of the horizontal anchors (8) are connected to the tension tendons (5). A flow guide assembly (9) is arranged on the partial array of the tension tendons (5) located between the base (3) and the inclined anchors (7).

2. A TLP blower with reduced vibration amplitude according to claim 1, characterized in that: Two tension tendons (5) are fixedly mounted on the lower surface of each end of the base (3).

3. A TLP blower with reduced vibration amplitude according to claim 2, characterized in that: The upper circumferential surface array of the counterweight column (6) is provided with three groups of U-shaped holes (601), and the lower circumferential surface array of the counterweight column (6) is provided with three groups of U-shaped holes (602). The U-shaped holes (601) and the U-shaped holes (602) are both U-shaped. The U-shaped hole (601) is inclined, and the U-shaped hole (602) is horizontal. The inclined anchor (7) passes through the inside of the U-shaped hole (601), and the two ends of the inclined anchor (7) are fixedly mounted on the surfaces of the two tension tendons (5). The horizontal anchor (8) passes through the inside of the U-shaped hole (602), and the two ends of the horizontal anchor (8) are fixedly mounted on the surfaces of the two tension tendons (5).

4. A TLP blower with reduced vibration amplitude according to claim 1, characterized in that: The flow guide assembly (9) comprises a fixed sleeve (901) fixedly mounted on the outside of the tension tendon (5), sealing rings (902) fixedly mounted on both ends of the fixed sleeve (901), a collar (903) being mounted on the outside of the fixed sleeve (901), springs (904) being arranged in an array between the outer wall of the fixed sleeve (901) and the inner wall of the collar (903), a swivel (905) being mounted on the outer wall of the collar (903), and fins (906) being arranged in an array on the circumferential surface of the swivel (905).

5. A TLP blower with reduced vibration amplitude according to claim 4, characterized in that: The outer side of the spring (904) is provided with a sleeve one (907) and a sleeve two (908); one end of the sleeve one (907) is fixedly mounted on the outer wall of the fixed sleeve (901); the other end of the sleeve one (907) is inserted into the inside of the sleeve two (908); and the end of the sleeve two (908) away from the sleeve one (907) is fixedly mounted on the inner wall of the collar (903).

6. A TLP blower with reduced vibration amplitude according to claim 4, characterized in that: The fin (906) is spiral-shaped.

Images