Offshore wind turbine maintenance platform and its use

Abstract

The present disclosure provides an offshore wind turbine maintenance platform and a method of use, which belongs to the field of marine platform technology. The support platform in the offshore wind turbine maintenance platform has a tower strip receiving groove extending from the edge of the support platform to the middle of the support platform, and the wind turbine tower is received in the sleeve strip receiving groove. The side of the tower strip receiving groove close to the first surface is then closed by the offshore wind turbine support deck component, and the wind turbine tower is located in the columnar tower clamping space of the offshore wind turbine support deck component. The support platform and the offshore wind turbine support deck component both support the wind turbine tower, offset the horizontal moment brought by the operation of the wind turbine tower crane, reduce the possibility of deformation, and increase the service life. The distance between the wind turbine tower and the support platform is small, and the crane boom section reduces the possibility of deformation of the tower due to horizontal moment, effectively reducing the use cost of the offshore wind turbine and extending the service life of the offshore wind turbine.

Description

Technical Field

[0001] The present disclosure relates to the technical field of offshore platforms, and in particular to an offshore wind turbine maintenance platform and a method for using the platform. Background Art

[0002] An offshore wind turbine is a common wind power generation device. An offshore wind turbine comprises at least a wind turbine tower whose bottom is supported on the seabed, and an installation room and blades at the top of the wind turbine tower. Workers can enter the interior of the offshore wind turbine tower to perform maintenance or replace parts of the offshore wind turbine.

[0003] When an offshore wind turbine needs maintenance or parts replacement, workers need to enter the sea area where the offshore wind turbine is located from the platform or hull, and then use the crane equipped with the offshore wind turbine to lift the workers or parts that need to be replaced to the top of the offshore wind turbine for maintenance or parts replacement. However, since there is a certain distance between the wind turbine tower of the offshore wind turbine and the platform or ship where the workers are located, the crane of the offshore wind turbine needs to be equipped with a longer boom to lift the workers or parts, which increases the cost of using the offshore wind turbine; and when the offshore wind turbine lifts the workers or parts, the wind turbine tower of the offshore wind turbine will also be subject to a large horizontal moment. The long-term existence of the horizontal moment is likely to affect the verticality and stability of the wind turbine tower and thus affect the service life of the offshore wind turbine. Summary of the invention

[0004] The embodiment of the present disclosure provides an offshore wind turbine maintenance platform and a method of use, which can reduce the use cost of offshore wind turbines and extend the service life of offshore wind turbines. The technical solution is as follows:

[0005] The embodiment of the present disclosure provides an offshore wind turbine maintenance platform, the offshore wind turbine maintenance platform includes pile legs, a support platform and an offshore wind turbine support deck component, the offshore wind turbine maintenance platform includes a plurality of pile legs parallel to each other, the plurality of pile legs can be movably inserted on the support platform at intervals from each other, the support platform has a first surface and a second surface which are both parallel to a horizontal plane and opposite to each other, the support platform has a tower strip receiving groove, the tower strip receiving groove extends from the edge of the support platform to the middle of the support platform, and the tower strip receiving groove connects the first surface and the second surface,

[0006] The offshore wind turbine support deck component is used to close or open the side of the tower strip-shaped receiving groove close to the first surface, and when the offshore wind turbine support deck component closes the side of the tower strip-shaped receiving groove close to the first surface, the offshore wind turbine support deck component has a columnar tower clamping space.

[0007] Optionally, the offshore wind turbine support deck component includes a control component and a support plate component both connected to the support platform, and the control component is used to drive the support plate assembly to close or open the tower strip-shaped receiving groove.

[0008] Optionally, the support plate assembly includes a first rotating plate and a second rotating plate, the first rotating plate and the second rotating plate are both hinged to the support platform, the rotation center lines of the first rotating plate and the second rotating plate are parallel to each other and are parallel to the length direction of the tower strip-shaped accommodating groove, the first rotating plate has a first semicircular groove on the side close to the second rotating plate, and the second rotating plate has a second semicircular groove opposite to the first semicircular groove on the side close to the first rotating plate, and the first semicircular groove and the second semicircular groove are closed to form the tower clamping space.

[0009] Optionally, the control component includes a first telescopic cylinder and a second telescopic cylinder which are coplanar, and the first telescopic cylinder and the second telescopic cylinder are located on both sides of the strip-shaped receiving groove of the tower, and the two ends of the first telescopic cylinder are respectively hinged to the support platform and the first rotating plate, and the two ends of the second telescopic cylinder are respectively hinged to the support platform and the second rotating plate, and the rotation plane of the first telescopic cylinder is perpendicular to the rotation center line of the first rotating plate.

[0010] Optionally, the offshore wind turbine support deck component further includes a limiting assembly, and the limiting assembly is used to limit the relative displacement of the first rotating plate with respect to the second rotating plate.

[0011] Optionally, the limiting assembly includes a connecting plate and a connecting pin, one end of the connecting plate is connected to the first rotating plate, the other end of the connecting plate presses the second rotating plate, and the connecting pin connects the second rotating plate and the connecting plate.

[0012] Optionally, the support platform is in a rectangular parallelepiped shape, the number of the legs is four, and the four legs are distributed at the four corners of the support platform.

[0013] Optionally, the offshore wind turbine maintenance platform further includes a control component, which is used to control the movement speed of the support platform and to measure the opening of the tower strip receiving groove and the distance between the tower strip receiving groove and the wind turbine tower of the offshore wind turbine maintenance platform.

[0014] The embodiment of the present disclosure provides a method for using an offshore wind turbine maintenance platform. The offshore wind turbine maintenance platform is implemented by the offshore wind turbine maintenance platform as described above. The method for using the offshore wind turbine maintenance platform includes:

[0015] Moving the support platform in the offshore wind turbine maintenance platform at sea;

[0016] The offshore wind turbine support deck component in the offshore wind turbine maintenance platform opens the tower strip receiving groove on the support platform;

[0017] Adjusting the position of the support platform until the opening of the tower strip receiving groove faces the wind turbine tower of the offshore wind turbine;

[0018] Driving the support platform to approach the wind turbine tower so that the wind turbine tower enters the tower strip-shaped receiving groove;

[0019] The offshore wind turbine support deck component closes the tower strip receiving groove close to the first surface, and the wind turbine tower is located in the columnar tower clamping space of the offshore wind turbine support deck component.

[0020] Optionally, the support platform is driven close to the wind turbine tower at a speed of 0.5 km / h to 1 km / h so that the wind turbine tower enters the tower strip-shaped receiving groove.

[0021] The beneficial effects brought by the technical solution provided by the embodiments of the present disclosure include at least:

[0022] The multiple pile legs and support platform in the offshore wind turbine maintenance platform can realize the drift and positioning functions of the offshore wind turbine maintenance platform at sea. The support platform has a first surface and a second surface that are both parallel to the horizontal plane and opposite to each other, and the support platform has a tower strip receiving groove extending from the edge of the support platform to the middle of the support platform, and the tower strip receiving groove connects the first surface and the second surface, so that the wind turbine tower of the offshore wind turbine can be received in the sleeve strip receiving groove, so that the wind turbine tower can be located in the middle of the support platform. The side of the tower strip receiving groove close to the first surface is then closed by the offshore wind turbine support deck component, and the wind turbine tower is located in the columnar tower clamping space of the offshore wind turbine support deck component, then the tower clamping space and the offshore wind turbine support deck component can support the tower, then when the crane equipped with the offshore wind turbine is working, the support platform and the offshore wind turbine support deck component can support the wind turbine tower, offset part of the horizontal moment of the wind turbine tower, thereby reducing the possibility of deformation of the wind turbine tower, and improving the service life of the wind turbine tower, thereby improving the service life of the offshore wind turbine; and the wind turbine tower is located in the middle of the support platform, and the distance between the wind turbine tower and the support platform is small, so there is no need to configure the wind turbine tower with a crane with a long boom to lift the staff or parts, which can reduce the preparation cost of the offshore wind turbine, and at the same time, the crane boom is short, and the horizontal moment applied by the crane itself on the wind turbine tower will also be small, further reducing the possibility of deformation of the tower due to the horizontal moment, effectively reducing the use cost of the offshore wind turbine and extending the service life of the offshore wind turbine. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 is a schematic diagram of the use status of the offshore wind turbine maintenance platform provided by an embodiment of the present disclosure;

[0025] Figure 2 is another schematic diagram of the use state of the offshore wind turbine maintenance platform provided by the embodiment of the present disclosure;

[0026] Figure 3 It is a schematic diagram of the cooperation between the first rotating plate and the second rotating plate and the tower strip receiving groove provided by the embodiment of the present disclosure;

[0027] Figure 4 It is a flow chart of a method for using the offshore wind turbine maintenance platform provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0028] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0029] For ease of understanding, here is provided Figure 1 To explain, Figure 1 is a schematic diagram of the use status of the offshore wind turbine maintenance platform provided by the embodiment of the present disclosure, with reference to Figure 1 It can be seen that the embodiment of the present disclosure provides an offshore wind turbine maintenance platform, which includes pile legs 1, a support platform 2 and an offshore wind turbine support deck component 3. The offshore wind turbine maintenance platform includes a plurality of pile legs 1 parallel to each other, and the plurality of pile legs 1 can be movably inserted on the support platform 2 at intervals from each other. The support platform 2 has a first surface 21 and a second surface 22 that are both parallel to the horizontal plane and opposite to each other. The support platform 2 has a tower strip-shaped receiving groove 23, which extends from the edge of the support platform 2 to the middle of the support platform 2, and the tower strip-shaped receiving groove 23 connects the first surface 21 and the second surface 22.

[0030] The offshore wind turbine support deck component 3 is used to close or open the side of the tower strip-shaped receiving groove 23 close to the first surface 21, and when the offshore wind turbine support deck component 3 closes the side of the tower strip-shaped receiving groove 23 close to the first surface 21, the offshore wind turbine support deck component 3 has a columnar tower clamping space 4.

[0031] The multiple pile legs 1 and the support platform 2 in the offshore wind turbine maintenance platform can realize the drift and positioning functions of the offshore wind turbine maintenance platform at sea. The support platform 2 has a first surface 21 and a second surface 22 that are both parallel to the horizontal plane and opposite to each other, and the support platform 2 has a tower strip receiving groove 23 extending from the edge of the support platform 2 to the middle of the support platform 2, and the tower strip receiving groove 23 connects the first surface 21 and the second surface 22, so that the wind turbine tower 100 of the offshore wind turbine can be accommodated in the sleeve strip receiving groove, so that the wind turbine tower 100 can be located in the middle of the support platform 2. The offshore wind turbine support deck component 3 is used to close the side of the tower strip receiving groove 23 close to the first surface 21, and the wind turbine tower 100 is located in the columnar tower clamping space 4 of the offshore wind turbine support deck component 3. The tower clamping space 4 and the offshore wind turbine support deck component 3 can support the tower. When the crane 200 configured for the offshore wind turbine is working, the support platform 2 and the offshore wind turbine support deck component 3 can support the wind turbine tower 100, offsetting part of the horizontal moment applied to the wind turbine tower 100, thereby reducing the possibility of deformation of the wind turbine tower 100 and improving the wind turbine tower. The service life of the wind turbine tower 100 is prolonged, thereby improving the service life of the offshore wind turbine; and the wind turbine tower 100 is located in the middle of the supporting platform 2, and the distance between the wind turbine tower 100 and the supporting platform 2 is relatively small. Therefore, there is no need to configure the wind turbine tower 100 with a crane 200 with a relatively long boom to lift the staff or parts, which can reduce the preparation cost of the offshore wind turbine. At the same time, the boom of the crane 200 is relatively short, and the horizontal moment applied by the crane 200 itself to the wind turbine tower 100 will also be relatively small, which further reduces the possibility of deformation of the tower due to the horizontal moment, effectively reduces the use cost of the offshore wind turbine and extends the service life of the offshore wind turbine.

[0032] It should be noted that one side of the tower strip-shaped receiving groove 23, and the semi-enclosed line obtained by the intersection of the side wall of the tower strip-shaped receiving groove 23 and the first surface 21, and the side of the closed tower strip-shaped receiving groove 23 refers to the offshore wind turbine support deck component 3 covering the semi-enclosed line obtained by the intersection of the side wall of the tower strip-shaped receiving groove 23 and the first surface 21.

[0033] Figure 2 is another schematic diagram of the use state of the offshore wind turbine maintenance platform provided by the embodiment of the present disclosure, with reference to Figure 2 It can be known that, when the offshore wind turbine support deck component 3 opens the tower strip receiving groove 23 , the wind turbine tower 100 can enter the interior of the tower strip receiving groove 23 from the opening of the tower strip receiving groove 23 . Figure 1 and Figure 2 Also shown is a crane 200 disposed on the wind turbine tower 100 .

[0034] Optionally, the support platform 2 is in a rectangular parallelepiped shape, the number of the legs 1 is four, and the four legs 1 are distributed at the four corners of the support platform 2 .

[0035] When the number of the support platform 2 and the pile legs 1 is within the above range, the pile legs 1 can provide good support to the support platform 2, and the support platform 2 is also easy to prepare, thereby effectively controlling the preparation cost of the offshore wind turbine maintenance platform.

[0036] It should be noted that when the support platform 2 is in a rectangular parallelepiped shape, the two surfaces of the support platform 2 parallel to the horizontal plane are the first surface 21 and the second surface 22, respectively, the tower strip receiving groove 23 can extend from one side of the support platform 2 to the middle of the support platform 2, and the intersection of the two diagonals of the first surface 21 of the support platform 2 is located in the tower strip receiving groove 23. This structure can ensure that the wind turbine tower 100 is relatively stable and the wind turbine tower 100 is well supported.

[0037] In an implementation provided by the present disclosure, the intersection of two diagonals of the first surface 21 of the support platform 2 may be located on the axis of the tower clamping space 4. The center of gravity of the support platform 2 and the wind turbine tower 100 is relatively stable, which can reduce the horizontal moments from different directions on the wind turbine tower 100.

[0038] Exemplarily, the tower strip-shaped receiving groove 23 may be a symmetrical structure, and the symmetry axis of the tower strip-shaped receiving groove 23 is on the symmetry plane of the supporting platform 2 in the shape of a rectangular parallelepiped.

[0039] This can ensure that the center of gravity of the support platform 2 and the wind turbine tower 100 is relatively stable, thereby reducing the horizontal moment from the support platform 2 that the wind turbine tower 100 is subjected to.

[0040] Optionally, the projection of the tower strip receiving groove 23 on the plane where the first surface 21 is located can be U-shaped or a rectangle with one side open. The tower strip receiving groove 23 is easy to prepare and facilitate the entry of the wind turbine tower 100.

[0041] In an implementation provided by the present disclosure, the opening of the tower strip receiving groove 23 near the edge of the support platform 2 may be trumpet-shaped, and the width of the tower strip receiving groove 23 decreases in the direction from the edge of the support platform 2 to the middle of the support platform 2. This can facilitate the wind turbine tower 100 to enter the interior of the tower strip receiving groove 23.

[0042] Optionally, the offshore wind turbine support deck component 3 includes a control component 31 and a support plate component 32 both connected to the support platform 2 , and the control component 31 is used to drive the support plate component 32 to close or open the tower strip-shaped receiving groove 23 .

[0043] The offshore wind turbine support deck component 3 includes a control component 31 and a support plate component 32 connected to the support platform 2, and the control component 31 is used to drive the support plate component 32 to close or open the tower strip receiving groove 23, which can improve the automation level of the offshore wind power maintenance platform and reduce labor costs.

[0044] It should be noted that in other implementations provided in the present disclosure, the offshore wind turbine support deck component 3 can also be configured to include only the support plate assembly 32, and the support plate assembly 32 can be manually controlled to close and open the tower strip receiving groove 23, and the present disclosure does not impose any restrictions on this.

[0045] Exemplarily, the support plate assembly 32 includes a first rotating plate 321 and a second rotating plate 322, both of which are hinged to the support platform 2, and the rotation center lines of the first rotating plate 321 and the second rotating plate 322 are parallel to each other and are parallel to the length direction of the tower strip-shaped accommodating groove 23, and the first rotating plate 321 has a first semicircular groove 3211 on the side close to the second rotating plate 322, and the second rotating plate 322 has a second semicircular groove 3221 opposite to the first semicircular groove 3211 on the side close to the first rotating plate 321, and the first semicircular groove 3211 and the second semicircular groove 3221 are closed to form a tower clamping space 4.

[0046] The support assembly is configured as a first rotating plate 321 and a second rotating plate 322 located on both sides of the tower strip receiving groove 23, and the rotation center lines of the first rotating plate 321 and the second rotating plate 322 are parallel to the length direction of the tower strip receiving groove 23, and the first rotating plate 321 and the second rotating plate 322 can be closed with each other during the rotation process, and the first semicircular groove 3211 and the second semicircular groove 3221 respectively located on the first rotating plate 321 and the second rotating plate 322 are closed to form a tower clamping space 4. In this structure, when the first rotating plate 321 and the second rotating plate 322 are opened, they will not affect the wind turbine tower 100 from entering the tower strip receiving groove 23, and when they are closed, the first semicircular groove 3211 and the second semicircular groove 3221 can naturally form the tower clamping space 4, and support the wind turbine tower 100 in the tower clamping space 4, which is convenient for clamping and supporting the wind turbine tower 100.

[0047] Exemplarily, the side wall of the tower strip-shaped receiving groove 23 includes a first partial surface 231 and a second partial surface 232 which are parallel to each other. The first rotating plate 321 and the first hinge axis 3212 of the support platform 2, and the second hinge axis 3222 of the second rotating plate 322 and the support platform 2 can be arranged on the first surface 21 and parallel to the first partial surface 231, and the projection of the first hinge axis 3212 on the horizontal plane coincides with the projection of the first partial surface 231 on the horizontal plane, and the projection of the second hinge axis 3222 on the horizontal plane coincides with the projection of the second partial surface 232 on the horizontal plane.

[0048] The first hinge shaft 3212 and the second hinge shaft 3222 adopt the above structure, and the first rotating plate 321 and the second rotating plate 322 have a large rotation range, which can realize a structure in which one side wall of the first rotating plate 321 and the first part surface 231, and one side wall of the second rotating plate 322 and the second part surface 232 are completely fitted (the first rotating plate 321 and the second rotating plate 322 are closed at this time), so the first rotating plate 321 and the second rotating plate 322 can be supported by the support platform 2 in the closed state, thereby improving the use stability of the support plate assembly 32. When the first rotating plate 321 and the second rotating plate 322 are opened to the maximum extent, the projections of the first rotating plate 321 and the second rotating plate 322 on the horizontal plane have no overlapping area with the tower strip receiving groove 23, ensuring that the wind turbine tower 100 will not be blocked from entering the tower strip receiving groove 23.

[0049] Optionally, the control component 31 includes a first telescopic cylinder 311 and a second telescopic cylinder 312 which are coplanar, and the first telescopic cylinder 311 and the second telescopic cylinder 312 are located on both sides of the tower strip-shaped receiving groove 23, and the two ends of the first telescopic cylinder 311 are respectively hinged to the support platform 2 and the first rotating plate 321, and the two ends of the second telescopic cylinder 312 are respectively hinged to the support platform 2 and the second rotating plate 322, and the rotation plane of the first telescopic cylinder 311 is perpendicular to the rotation center line of the first rotating plate 321.

[0050] The control component 31 is configured to include a first telescopic cylinder 311 and a second telescopic cylinder 312, and both ends of the first telescopic cylinder 311 and the second telescopic cylinder 312 are respectively hinged to the support platform 2 and the first rotating plate 321 and the second rotating plate 322. When the first telescopic cylinder 311 and the second telescopic cylinder 312 are telescoped, they can drive the first rotating plate 321 and the second rotating plate 322 to rotate, so as to achieve stable closing and opening between the first rotating plate 321 and the second rotating plate 322. In addition, the rotation planes of the first telescopic cylinder 311 and the second telescopic cylinder 312 are perpendicular to the rotation center line of the first rotating plate 321, and the transmission of the acting force between the first telescopic cylinder 311 and the second telescopic cylinder 312 and the corresponding rotating plates is relatively stable, which can improve the closing and opening efficiency of the first rotating plate 321 and the second rotating plate 322.

[0051] Figure 3 Schematic diagram of the coordination between the first rotating plate and the second rotating plate and the tower strip receiving groove provided by the embodiment of the present disclosure, with reference to Figure 3 It can be seen that when the first rotating plate 321 and the second rotating plate 322 are closed, the first rotating plate 321 and the second rotating plate 322 can be stably supported by the tower strip receiving groove 23. In this structure, the tower strip receiving groove 23 itself can provide a certain limit effect for the first rotating plate 321 and the second rotating plate 322, thereby improving the stability of the first rotating plate 321 and the second rotating plate 322 in the closed state.

[0052] In other implementations provided by the present disclosure, the support plate assembly 32 may also only include a plate structure with a semicircular groove slidably disposed on the first surface 21 of the support platform 2, and the control assembly 31 may include a retractable motor or a retractable cylinder for controlling the movement of the plate structure, and the present disclosure does not limit this. The semicircular groove of the plate structure can cooperate with one end of the tower strip receiving groove 23 near the middle of the support platform 2 to clamp the wind turbine tower 100, and can also support the wind turbine tower 100.

[0053] Optionally, the offshore wind turbine support deck component 3 further includes a limiting assembly 33 , and the limiting assembly 33 is used to limit the relative displacement of the first rotating plate 321 relative to the second rotating plate 322 .

[0054] When the support plate assembly 32 is in a state of closing the tower strip-shaped receiving groove 23, the limit assembly 33 can limit and lock the first rotating plate 321 and the second rotating plate 322, thereby reducing the rotation or shaking of the first rotating plate 321 and the second rotating plate 322 due to external force, thereby ensuring that the support plate assembly 32 stably supports the wind turbine tower 100.

[0055] Optionally, the limiting assembly 33 includes a connecting plate 331 and a connecting pin 332 , one end of the connecting plate 331 is connected to the first rotating plate 321 , the other end of the connecting plate 331 presses the second rotating plate 322 , and the connecting pin 332 connects the second rotating plate 322 and the connecting plate 331 .

[0056] The connecting plate 331 can press the second rotating plate 322 , and achieve connection and fixation with the second rotating plate 322 through the connecting pin 332 , so as to achieve stable positioning of the first rotating plate 321 and the second rotating plate 322 .

[0057] In other implementations provided by the present disclosure, the limiting assembly 33 may also include a buckle-like structure, and the clamping member and the fixing member of the buckle may be respectively arranged on the first rotating plate 321 and the second rotating plate 322. The limiting of the first rotating plate 321 and the second rotating plate 322 can be achieved while facilitating disassembly and assembly.

[0058] Optionally, the offshore wind turbine maintenance platform further includes a control component 5 for controlling the moving speed of the support platform 2 and for measuring the opening of the tower strip receiving groove 23 and the distance between the tower strip receiving groove 23 and the wind turbine tower 100 .

[0059] The addition of the control component 5 can improve the automation level of the offshore wind turbine maintenance platform and improve the use stability of the offshore wind turbine maintenance platform.

[0060] For example, the controller may include a processor (not shown in the figure) and a displacement sensor 51. The processor may be disposed inside the support platform 2, and the displacement sensor 51 may be disposed near the opening of the tower strip receiving groove 23 and the first semicircular groove 3211 of the first rotating plate 321 and the second semicircular groove 3221 of the second rotating plate 322. The processor receives data from the displacement sensor 51 and controls the movement of the support platform 2.

[0061] The distance between the outer wall of the wind tower 100 and the tower strip receiving groove 23 and the first semicircular groove 3211 and the second semicircular groove 3221 can be judged more accurately. On the one hand, it can facilitate the control of the movement of the support platform 2 and ensure that the wind tower 100 can move stably in the tower strip receiving groove 23. On the other hand, after the support platform 2 completes the movement, when the first rotating plate 321 and the second rotating plate 322 are closed, the first semicircular groove 3211 and the second semicircular groove 3221 are closed, which can stably clamp and support the wind tower 100.

[0062] It should be noted that the offshore wind turbine maintenance platform also includes a lifting component connected between each pile leg and the support platform and a driving component connected to the support platform and used to drive the support platform to drift at sea, so as to realize the movement and lifting of the offshore wind turbine maintenance platform. The lifting component can be a hydraulic lifting component or a gear rack lifting component. This disclosure will not be repeated here. The processor can control the movement of the motor or telescopic cylinder used for driving.

[0063] Figure 4 is a flow chart of the method for using the offshore wind turbine maintenance platform provided by the embodiment of the present disclosure, refer to Figure 4 It can be seen that the embodiment of the present disclosure provides a method for using an offshore wind turbine maintenance platform. The offshore wind turbine maintenance platform is implemented by using the above offshore wind turbine maintenance platform. The method for using the offshore wind turbine maintenance platform includes:

[0064] S101: Move a support platform in an offshore wind turbine maintenance platform at sea.

[0065] S102: The offshore wind turbine support deck component in the offshore wind turbine maintenance platform opens the tower strip receiving groove on the support platform.

[0066] S103: Adjust the position of the support platform until the opening of the tower strip receiving groove faces the wind turbine tower of the offshore wind turbine.

[0067] S104: driving the support platform to approach the wind turbine tower so that the wind turbine tower enters the tower strip receiving groove.

[0068] S105: The offshore wind turbine support deck component closes the tower strip receiving groove close to the first surface, and the wind turbine tower is located in the columnar tower clamping space of the offshore wind turbine support deck component.

[0069] The multiple pile legs and support platform in the offshore wind turbine maintenance platform can realize the drift and positioning functions of the offshore wind turbine maintenance platform at sea. The support platform has a first surface and a second surface that are both parallel to the horizontal plane and opposite to each other, and the support platform has a tower strip receiving groove extending from the edge of the support platform to the middle of the support platform, and the tower strip receiving groove connects the first surface and the second surface, so that the wind turbine tower of the offshore wind turbine can be received in the sleeve strip receiving groove, so that the wind turbine tower can be located in the middle of the support platform. The side of the tower strip receiving groove close to the first surface is then closed by the offshore wind turbine support deck component, and the wind turbine tower is located in the columnar tower clamping space of the offshore wind turbine support deck component, then the tower clamping space and the offshore wind turbine support deck component can support the tower, then when the crane equipped with the offshore wind turbine is working, the support platform and the offshore wind turbine support deck component can support the wind turbine tower, offset part of the horizontal moment of the wind turbine tower, thereby reducing the possibility of deformation of the wind turbine tower, and improving the service life of the wind turbine tower, thereby improving the service life of the offshore wind turbine; and the wind turbine tower is located in the middle of the support platform, and the distance between the wind turbine tower and the support platform is small, so there is no need to configure the wind turbine tower with a crane with a long boom to lift the staff or parts, which can reduce the preparation cost of the offshore wind turbine, and at the same time, the crane boom is short, and the horizontal moment applied by the crane itself on the wind turbine tower will also be small, further reducing the possibility of deformation of the tower due to the horizontal moment, effectively reducing the use cost of the offshore wind turbine and extending the service life of the offshore wind turbine.

[0070] Optionally, the support platform is driven close to the wind turbine tower at a speed of 0.5 km / h to 1 km / h so that the wind turbine tower enters the tower strip receiving groove.

[0071] The position of the support platform can be adjusted conveniently and the possibility of collision between the tower strip receiving groove of the support platform and the wind turbine tower can be reduced.

[0072] The above does not limit the present disclosure in any form. Although the present disclosure has been disclosed as above through the embodiments, it is not used to limit the present disclosure. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present disclosure. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present disclosure without departing from the content of the technical solution of the present disclosure still falls within the scope of the technical solution of the present disclosure.

Claims

1. An offshore wind turbine maintenance platform, characterized in that: The offshore wind turbine maintenance platform comprises a pile leg (1), a support platform (2) and an offshore wind turbine support deck component (3), wherein the offshore wind turbine maintenance platform comprises a plurality of pile legs (1) parallel to each other, wherein the plurality of pile legs (1) are movably inserted into the support platform (2) at intervals from each other, wherein the support platform (2) has a first surface (21) and a second surface (22) which are both parallel to a horizontal plane and opposite to each other, wherein the support platform (2) has a tower strip receiving groove (23), wherein the tower strip receiving groove (23) extends from an edge of the support platform (2) to a middle portion of the support platform (2), and wherein the tower strip receiving groove (23) is provided at a position adjacent to the support platform (2). The receiving groove (23) communicates with the first surface (21) and the second surface (22); the side wall of the tower strip receiving groove (23) includes a first partial surface (231) and a second partial surface (232) that are parallel to each other; the offshore wind turbine support deck component (3) is used to close or open a side of the tower strip receiving groove (23) close to the first surface (21); and when the offshore wind turbine support deck component (3) closes a side of the tower strip receiving groove (23) close to the first surface (21), the offshore wind turbine support deck component (3) has a columnar tower clamping space (4); The offshore wind turbine support deck component (3) comprises a control component (31), a support plate component (32) and a limit component (33), wherein the control component (31) and the support plate component (32) are both connected to the support platform (2), wherein the control component (31) is used to drive the support plate component (32) to close or open the tower strip-shaped receiving groove (23), wherein the support plate component (32) comprises a first rotating plate (321) and a second rotating plate (322), wherein the first rotating plate (321) and the second rotating plate (322) are both hinged to the support platform (2), wherein the rotation center lines of the first rotating plate (321) and the second rotating plate (322) are parallel to each other and are parallel to the length direction of the tower strip-shaped receiving groove (23), and the first rotating plate (321) has a first semicircular groove (3211) on a side close to the second rotating plate (322). ), the second rotating plate (322) has a second semicircular groove (3221) opposite to the first semicircular groove (3211) on one side close to the first rotating plate (321), the first semicircular groove (3211) and the second semicircular groove (3221) are closed to form the tower clamping space (4), the first rotating plate (321) and the first hinge axis (3212) of the support platform (2), and the second hinge axis (3222) of the second rotating plate (322) and the support platform (2) are both arranged on the first surface (21) and parallel to the first partial surface (231), the projection of the first hinge axis (3212) on the horizontal plane coincides with the projection of the first partial surface (231) on the horizontal plane, and the projection of the second hinge axis (3222) on the horizontal plane coincides with the projection of the second partial surface (232) on the horizontal plane, The control assembly (31) comprises a first telescopic cylinder (311) and a second telescopic cylinder (312) which are coplanar. The first telescopic cylinder (311) and the second telescopic cylinder (312) are located on both sides of the tower strip-shaped receiving groove (23). Two ends of the first telescopic cylinder (311) are respectively hinged to the support platform (2) and the first rotating plate (321). Two ends of the second telescopic cylinder (312) are respectively hinged to the support platform (2) and the second rotating plate (322). The rotation plane of the first telescopic cylinder (311) is perpendicular to the rotation center line of the first rotating plate (321). The limit assembly (33) comprises a connecting plate (331) and a connecting pin (332). One end of the connecting plate (331) is connected to the first rotating plate (321). The other end of the connecting plate (331) presses the second rotating plate (322). The connecting pin (332) connects the second rotating plate (322) and the connecting plate (331).

2. The offshore wind turbine maintenance platform according to claim 1, characterized in that: The support platform (2) is in the shape of a rectangular parallelepiped, the number of the legs (1) is four, and the four legs (1) are distributed at the four corners of the support platform (2).

3. The offshore wind turbine maintenance platform according to claim 1, characterized in that: The offshore wind turbine maintenance platform further comprises a control component (5), wherein the control component (5) is used to control the moving speed of the support platform (2) and to measure the opening of the tower strip receiving groove (23) and the distance between the tower strip receiving groove (23) and the wind turbine tower (100) of the offshore wind turbine maintenance platform.

4. A method for using an offshore wind turbine maintenance platform, characterized in that: The offshore wind turbine maintenance platform is implemented by the offshore wind turbine maintenance platform according to any one of claims 1 to 3, and the method for using the offshore wind turbine maintenance platform includes: Moving the support platform in the offshore wind turbine maintenance platform at sea; The offshore wind turbine support deck component in the offshore wind turbine maintenance platform opens the tower strip receiving groove on the support platform; Adjusting the position of the support platform until the opening of the tower strip receiving groove faces the wind turbine tower of the offshore wind turbine; Driving the support platform to approach the wind turbine tower so that the wind turbine tower enters the tower strip-shaped receiving groove; The offshore wind turbine support deck component closes the tower strip receiving groove close to the first surface, and the wind turbine tower is located in the columnar tower clamping space of the offshore wind turbine support deck component.

5. The method for using the offshore wind turbine maintenance platform according to claim 4, characterized in that: The support platform is driven close to the wind turbine tower at a speed of 0.5 km / h to 1 km / h so that the wind turbine tower enters the tower strip receiving groove.

Images