CN213574465U

CN213574465U - Offshore wind turbine complete machine installation tower with rotation and motion compensation capabilities

Info

Publication number: CN213574465U
Application number: CN202022254373.5U
Authority: CN
Inventors: 徐立新; 王金光; 江锋; 李星群; 刘建成; 何力; 易志金
Original assignee: China Merchants Deep Sea Equipment Research Institute Sanya Co ltd; China Merchants Marine Equipment Research Institute Co ltd
Current assignee: China Merchants Deep Sea Equipment Research Institute Sanya Co ltd; China Merchants Marine Equipment Research Institute Co ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-06-29
Anticipated expiration: 2030-10-12

Abstract

The utility model discloses an offshore wind turbine complete machine installation pylon with gyration and motion compensation ability can satisfy loading, transportation and the installation of a plurality of whole fans. The complete machine mounting tower comprises a base, a rotating device and a mounting rack; a base is arranged at the bottom in the mounting rack, and a rotating device is arranged on the base; the mounting frame freely rotates relative to the ship body, the mounting frame comprises a supporting frame, a pile gripper, a horizontal motion compensation system and a vertical motion compensation system, and the mounting frame performs six-degree-of-freedom motion compensation on the whole fan in the mounting process through the integrated horizontal motion compensation system and the integrated vertical motion compensation system. The utility model discloses the device is applicable to the whole transportation of marine fan of different grade type and installation, also can be applied to the operation of disassembling of decommissioning fan.

Description

Offshore wind turbine complete machine installation tower with rotation and motion compensation capabilities

Technical Field

The utility model relates to an offshore wind turbine complete machine erection tower with gyration and motion compensation ability.

Background

At present, the installation of the offshore wind turbine comprises a split installation mode and an integral installation mode.

The split installation is usually completed by using a self-elevating wind power installation platform, and pile legs of the platform lift a ship body to form a stable operation surface to implement the installation of parts or components. The pile inserting and pile pulling operation before and after the platform is hoisted has high requirements on sea condition and seabed geology. The self-elevating wind power installation mode has limited operation water depth due to the limitation of the length of the pile leg.

The whole installation is mainly realized by a heavy lift ship, and the ship body does not have the transportation function, so that the transportation ship is required to assist in the installation operation. The integral installation of offshore wind turbines places high demands on the lifting height and the lifting weight of the crane on the traditional heavy lift vessel, so that the capital expenditure for the construction or lease of the heavy lift vessel is large. When the crane ship is integrally installed, the hoisting point of the crane ship is very high, and the hoisting point moves violently in the waves, so that the window period of operation is short.

The offshore wind power technology is developing towards large-scale, high-power and deep open sea, the overall weight of the offshore high-power 15MW wind turbine under development can be increased to 2000 tons or even more, the diameter of the wind wheel reaches 240m, and undoubtedly, a lot of challenges are provided for the transportation and installation mode of the traditional wind turbine. The offshore wind power market has a pressing need for safe, economical and reliable installation techniques and equipment to meet the needs of future developments.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an offshore wind turbine complete machine installation tower with rotation and motion compensation capabilities, which comprises a base, a rotation device and an installation frame; a base is arranged at the bottom in the mounting rack, and a rotating device is arranged on the base; the mounting frame freely rotates relative to the ship body, the mounting frame comprises a supporting frame, a pile gripper, a horizontal motion compensation system and a vertical motion compensation system, and the mounting frame performs six-degree-of-freedom motion compensation on the whole fan in the mounting process through the integrated horizontal motion compensation system and the integrated vertical motion compensation system.

Furthermore, the mounting tower has a rotation function and is used for adjusting the placement position of the fan on the deck. When the wind turbine is loaded on a wharf or installed on the sea, the fan is uploaded to a deck or installed on a fan base by the mounting frame; during transportation, the mounting frame adjusts the placement position of the fan on the deck, so that the adverse effect of the weight of the fan on the overall strength of the ship body is reduced; the bottom of the supporting frame is provided with a device which is locked and fixed with the deck.

Furthermore, the horizontal motion compensation system consists of an upper positioning jacket, a lower positioning jacket and a limiting cable; a clamp is fixedly arranged in each of the upper positioning jacket and the lower positioning jacket, and a hydraulic cylinder is arranged on each of the upper positioning jacket and the lower positioning jacket; the top of the limiting cable is connected to the top cross rod of the supporting frame, and the bottom of the limiting cable is connected to the lower positioning clamping sleeve; the upper positioning jacket and the lower positioning jacket are linked to work together to realize the motion compensation function for the translation and rotation of the whole fan.

Furthermore, the limiting cable is used for adjusting the initial positions of the upper positioning jacket and the lower positioning jacket and is used for maintaining the synchronous vertical movement of the upper positioning jacket and the lower positioning jacket and the fan in the installation process of the fan. Thereby selecting the optimal control point according to the conditions of the fan model, the wharf height, the tide and the like; in the process of lifting and lowering the fan, the limiting cable drives the upper positioning jacket and the lower positioning jacket to keep synchronous with the vertical movement of the fan, so that the mutual interference of a vertical movement compensation system and a horizontal movement compensation system caused by the friction force generated by the relative movement between the positioning jacket and the tower barrel is avoided.

Furthermore, the supporting frame comprises vertical supporting legs, a cross rod, a structural supporting rod, an operating platform and a hanging bracket; the structural support rods are fixed between the cross rods, the operating platform and the hanging supports, so that the mounting rack is stable; the sliding grooves arranged on the vertical supporting legs limit the vertical travelling route of the positioning jacket and also provide structural support for horizontal motion compensation of the positioning jacket; the operating platform provides ample space for arranging the vertical motion compensation system; the suspension support suspends the steel wire rope connecting the vertical motion compensation system and the pile gripper to play a role in guiding, and the reduction of the arrangement height of the suspension support is favorable for improving the stability of the fan installation vessel.

Furthermore, a hydraulic device is arranged on the pile gripper and connected with the control system, and the pile gripper adjusts the pressure of the clamp through the hydraulic device and resists the vertical load of the fan by utilizing the friction force between the clamp and the tower barrel. The pile gripper is connected with a steel wire rope, and the vertical motion compensation system actively controls the vertical motion of the fan through a traction steel wire rope.

Furthermore, the pile gripper and the clamps of the upper and lower positioning jackets adopt a multi-block structural design and can be matched with fan tower cylinders with different diameters.

Furthermore, the pile embracing device can be used as an independent device to realize the pile embracing function, and can also be assembled into an integrated device with a lower positioning jacket, so that the pile embracing device shares one set of clamp and has the functions of pile embracing and horizontal motion compensation.

Furthermore, the complete machine mounting tower can be applied to the disassembly operation of the offshore decommissioning fan.

Furthermore, the clamp of the pile gripper, the upper positioning jacket and the lower positioning jacket adopts a multi-block structural design and is matched with the diameters of different fan tower cylinders.

Compared with the prior art, the utility model, beneficial effect as follows:

the advantages of the installation of the tower slewing function are as follows: the wharf high-efficiency loading fan; the utilization rate of the deck is greatly improved; the fan installation vessel can transport a plurality of fans simultaneously. Advantages of the motion compensation function of the installation tower: the active vertical and horizontal motion compensation systems act together, so that the mounting precision is improved, and an auxiliary tool is avoided; the lifting mode of the traditional crane ship is replaced, the limitation of lifting height is cancelled, the position of a motion control point on a tower drum is low, the crane can be applied to fans with different heights, particularly future high-power fans, the crane can adapt to installation operation under the condition of high sea conditions, and the installation operation window period can be further expanded. The utility model discloses installation pylon can realize marine fan safe economy and efficient transportation and installation, has shortened wind-powered electricity generation field construction cycle, reduces wind-powered electricity generation field development cost.

Drawings

Fig. 1 is a structural diagram of the present invention.

Fig. 2 is the schematic view of the utility model discloses carry two offshore wind turbines.

Fig. 3 is a schematic view of the rotation process of the installation tower of the present invention.

In the figure: 1. the pile driving device comprises a mounting frame, 2 parts of a base, 3 parts of a rotating device, 4 parts of a supporting frame, 5 parts of a vertical motion compensation system, 6 parts of a horizontal motion compensation system, 6-1 parts of an upper positioning jacket, 6-2 parts of a lower positioning jacket, 6-3 parts of a limiting cable, 7 parts of a pile gripper, 11 parts of a vertical supporting leg, 12 parts of a cross bar, 13 parts of a structural supporting rod, 14 parts of a suspension bracket, 15 parts of an operation platform, 16 parts of a sliding chute, 21 parts of a steel wire rope, 22 parts of a hoop, 23 parts of a hydraulic cylinder and 31 parts of a fan.

Detailed Description

In order to deepen the understanding of the present invention, the following detailed description of the specific implementation method of the present invention is provided with the accompanying drawings, and this embodiment is only used for explaining the present invention, and does not constitute the limitation to the protection scope of the present invention.

As shown in figure 1, the offshore wind turbine complete machine installation tower with rotation and motion compensation capabilities is composed of an installation frame 1, a base 2 and a rotation device 3, wherein the rotation device 3 is an existing conventional device. The mounting frame 1 comprises a supporting frame 4, a vertical motion compensation system 5, a horizontal motion compensation system 6 and a pile gripper 7. The supporting frame 4 consists of vertical supporting legs 11, a cross bar 12, a structural supporting rod 13, a hanging bracket 14 and an operating platform 15; a plurality of cross rods 12 are arranged on the four vertical supporting legs 11 from bottom to top; the upper cross bar 12, the lower cross bar 12, the cross bar 12 and the operating platform 15, and the cross bar 12 and the suspension bracket 14 are fixedly connected by structural support rods 13; the structure supporting rods 13 are crossed; a horizontal motion compensation system 6 is arranged on the vertical supporting leg 11, a vertical motion compensation system 5 is installed on the operating platform 15, and a suspension bracket 14 is arranged above the pile gripper 7. The horizontal motion compensation system 6 comprises an upper positioning jacket 6-1, a lower positioning jacket 6-2 and a limiting cable 6-3; the upper positioning clamping sleeve 6-1 and the lower positioning clamping sleeve 6-2 are respectively provided with a hoop 22, a hydraulic cylinder 23 and a control system, so that the contact with the tower barrel is realized and the horizontal movement of a contact point is controlled. Control systems are known in the art for controlling computers and the like. The upper and lower positioning clamping sleeves are connected with the sliding groove 16 on the vertical supporting leg 11 in a sliding way through a sliding plate, and the sliding plate is provided with a sliding rail matched with the sliding groove 16. The top of the limiting cable 6-3 is connected with a top cross bar 12 of a supporting frame 11, and the bottom is connected with the lower positioning jacket 6-2. The pile embracing device 7 is provided with a hydraulic device, a clamp 22 and a control system, the hydraulic device is connected with the control system, the pile embracing device 7 and the lower positioning jacket 6-2 share one set of the clamp 22, and the hydraulic device is started to lock the fan. The wire rope 21 connects the vertical motion compensation system 5 and the pile gripper 7 via the suspension bracket 14. The clamp of the pile gripper 7 and the positioning jacket adopts a multi-block structural design to match tower barrels with different diameters. The pile gripper 7 adjusts the clamp pressure through a configured hydraulic device, so that the friction force between the clamp and the tower drum is ensured to be enough to resist the dynamic load of the fan.

As shown in fig. 2, the whole offshore wind turbine installation tower of the preferred embodiment of the present invention carries two offshore wind turbines, and the pile gripper 7 adjusts the pressure between the multi-block clamp 22 and the wind turbine 31 tower through the hydraulic device and the control system until the friction force is enough to maintain the synchronous motion between the two. The wire rope 21 connects the pile gripper 7 and the vertical motion compensation system 5 via the suspension bracket 14, the vertical motion compensation system 5 being conventional equipment, typically including a hydraulic unit and a control system, etc. The vertical motion compensation system 5 controls the vertical motion of the fan 31. The horizontal motion compensation system 6 is composed of an upper positioning jacket and a lower positioning jacket. The upper and lower positioning jackets actively adjust the horizontal position and the torsion angle of the hoop 22 through respective configuration of a plurality of hydraulic cylinders 23, and the upper and lower positioning jackets operate in a linkage manner to control the horizontal position, the axial direction and the torsion angle of the fan. The two groups of clamping sleeves are actively controlled by the control system, so that the rotation of the fan can be compensated besides the translation of the fan, and the installation accuracy under multiple degrees of freedom is met.

As shown in fig. 3, the utility model discloses the marine wind turbine complete machine installation pylon gyration process schematic diagram of preferred example, because slewer 3's effect, mounting bracket 1 can freely revolve around base 2, can accomplish the pier of a plurality of fans in proper order and load or marine installation. The following describes specific implementation steps by taking the installation operation of the offshore wind turbine as an example.

1) After the fan installation vessel reaches a designated area, the target fan is transferred to the installation area by the rotary installation frame 1, and the bottom of the vertical supporting leg 11 of the supporting frame 4 is locked with a deck mechanical device.

2) And operating the fan installation ship to approach the fan foundation until the target fan is positioned above the fan foundation.

3) The vertical motion compensation system 5 lowers the steel wire rope 21 to enable the fan to gradually approach the fan foundation, and meanwhile, the limiting cable 6-3 is adjusted to ensure that the upper and lower positioning jackets and the fan synchronously descend; and when the distance between the bottom of the fan and the fan foundation is reduced to a set value, the motion compensation functions of the active vertical motion compensation system 5 and the active horizontal motion compensation system 6 are correspondingly started.

4) After the bottom of the fan is contacted with the fan foundation, the weight of the fan is gradually transferred to the base, the fan and the fan base are connected through the mounting bolts, and the fan mounting operation is completed.

And (5) repeating the steps 1) to 4) to finish the installation operation of the rest shipborne fans.

Claims

1. The utility model provides an offshore wind turbine complete machine erection tower with gyration and motion compensation ability which characterized in that: the complete machine mounting tower comprises a base, a rotating device and a mounting rack; a base is arranged at the bottom in the mounting rack, and a rotating device is arranged on the base; the mounting frame freely rotates relative to the ship body, the mounting frame comprises a supporting frame, a pile gripper, a horizontal motion compensation system and a vertical motion compensation system, and the mounting frame performs six-degree-of-freedom motion compensation on the whole fan in the mounting process through the integrated horizontal motion compensation system and the integrated vertical motion compensation system.

2. The offshore wind turbine complete installation tower with rotation and motion compensation capability of claim 1, wherein: the horizontal motion compensation system consists of an upper positioning jacket, a lower positioning jacket and a limiting cable; a clamp is fixedly arranged in each of the upper positioning jacket and the lower positioning jacket, and a hydraulic cylinder is arranged on each of the upper positioning jacket and the lower positioning jacket; the top of the limiting cable is connected to the top cross rod of the supporting frame, and the bottom of the limiting cable is connected to the lower positioning clamping sleeve; the upper positioning jacket and the lower positioning jacket are linked to work together to realize the motion compensation function for the translation and rotation of the whole fan.

3. The offshore wind turbine complete installation tower with rotation and motion compensation capability of claim 2, wherein: the limiting cable is used for adjusting the initial positions of the upper positioning jacket and the lower positioning jacket before the fan is loaded; the vertical positioning jacket is used for maintaining the synchronous vertical movement of the upper positioning jacket and the lower positioning jacket and the fan in the installation process of the fan.

4. The offshore wind turbine complete installation tower with rotation and motion compensation capability of claim 1, wherein: the supporting frame comprises vertical supporting legs, a cross rod, a structural supporting rod, an operating platform and a hanging bracket; the structural support rods are fixed between the cross rods, the operating platform and the hanging supports, so that the mounting rack is stable; the sliding grooves arranged on the vertical supporting legs limit the vertical advancing routes of the upper positioning jacket and the lower positioning jacket and provide structural support for realizing the horizontal motion compensation function; the suspension bracket plays a guiding role in a steel wire rope connecting the vertical motion compensation system and the pile gripper.

5. The offshore wind turbine complete installation tower with rotation and motion compensation capability of claim 1, wherein: the pile gripper is provided with a hydraulic device, the hydraulic device is connected with a control system, the clamp is adjusted through the hydraulic device and the control system to apply pressure, and the pile gripper and a fan are guaranteed to synchronously move by means of friction force between the clamp and a tower.

6. The offshore wind turbine complete installation tower with rotation and motion compensation capability of claim 1, wherein: the pile embracing device is used as an independent device to realize the pile embracing function, or is assembled into an integrated device together with a lower positioning jacket, shares the same set of hoop and has the functions of pile embracing and horizontal motion compensation.

7. The offshore wind turbine complete installation tower with rotation and motion compensation capability of claim 2, wherein: the hoop of the pile gripper, the upper positioning jacket and the lower positioning jacket adopts a multi-block structural design and is matched with the diameters of different fan tower drums.