Self-elevating operation and maintenance platform

Abstract

The utility model relates to a self-elevating operation and maintenance platform. The self-elevating operation and maintenance platform comprises the platform body, the lifting pile legs, the fixing assembly and the extending assembly, the height of the platform body is adjusted through the lifting pile legs, the fixing assembly is driven by the extending assembly to extend out of the outer side of the edge of the platform body, and the self-elevating operation and maintenance platform can be adjusted under the condition that the position of the operation and maintenance platform is not moved. And the positions of the fixing assemblies are flexibly adjusted, so that the operation and maintenance platform and the offshore foundation are mutually fixed, and the convenience and operability of fixing the operation and maintenance platform are improved. Moreover, the extending assembly is arranged on the surface, back to the sea level, of the platform body, so that the extending assembly is easy to observe and operate, the speed and success rate of connection with the offshore foundation in the complex and shaking wave environment can be improved, and meanwhile mechanical maintenance is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore foundation operation and maintenance, in particular to a self-elevating operation and maintenance platform. Background Art

[0002] Currently, there are two options for offshore foundation maintenance, such as replacing and repairing large components on floating wind turbine foundations. One is to tow the turbine back to the dock for repair and replacement, or to utilize an operation and maintenance platform to perform replacement and repair directly at the turbine's operating area by berthing.

[0003] The first option incurs unnecessary time and financial costs, making it unsuitable for the operation and maintenance of large-scale floating offshore wind farms. The second option, due to the relative motion between the operation and maintenance platform and the foundation caused by waves during operation and maintenance, results in inefficient replacement or maintenance of large components and poses safety risks. Furthermore, due to the diverse forms and sizes of floating wind turbine foundations, direct berthing operation and maintenance becomes more difficult when the wind turbines and towers are a certain distance from the outer edge of the platform. This, to a certain extent, limits the applicability of the operation and maintenance platform and hinders the diversification of offshore foundation types.

[0004] Therefore, it is necessary to develop a new type of self-elevating operation and maintenance platform to improve some of the above-mentioned problems existing in related technologies. Utility Model Content

[0005] The purpose of the utility model is to provide a self-elevating operation and maintenance platform, which can enable the operation and maintenance platform to be firmly connected to an offshore foundation under certain wind and wave conditions, so as to improve the efficiency and safety of operation and maintenance work.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] The self-elevating operation and maintenance platform provided by the present invention includes: a platform body, lifting legs, a fixing assembly and an extension assembly; the lifting legs are arranged on the platform body and are used to adjust the platform height; the fixing assembly is used to fix the platform body to an offshore foundation to resist wave loads; the extension assembly is connected to the fixing assembly and is used to drive the fixing assembly to extend out of the edge of the platform body.

[0008] Optionally, the extending assembly includes a first driving member, and the fixing assembly is connected to the first driving member, wherein the first driving member is arranged on a surface of the platform body facing away from the sea level, and the fixing assembly faces the sea level.

[0009] Optionally, the extending assembly further includes a second driving member, and the first driving member and the fixing assembly are connected to the same side of the second driving member.

[0010] Optionally, the extending assembly further includes a second driving member, and the fixing assembly is connected to the first driving member via the second driving member, wherein the moving direction of the second driving member is perpendicular to the moving direction of the first driving member.

[0011] Optionally, the extending component includes a first driving member, which is in the shape of a plate and can be movably placed on a side edge of the platform body.

[0012] Optionally, the extension assembly further includes a second driving member, and a track of the second driving member is laid on the first driving member.

[0013] Optionally, the fixing assembly includes at least two fitting grooves, and the fitting grooves are respectively arranged in a one-to-one correspondence with different second driving members for respectively nesting the columns of the offshore foundation.

[0014] Optionally, the fixing assembly further includes a reinforcing portion, which is disposed at the opening of the fitting groove. The reinforcing portion is cylindrical, and the internal space of the reinforcing portion is connected to the fitting groove.

[0015] Optionally, the end of the reinforcement portion is provided with a tapered structure.

[0016] The utility model provides a method for connecting offshore foundations, comprising the following steps:

[0017] Towing the operation and maintenance platform to the vicinity of the offshore foundation;

[0018] Lift the platform body by raising and lowering the pile legs;

[0019] Extending the fixing assembly from the platform body by extending the assembly and moving the fixing assembly to above the columns of the offshore foundation;

[0020] The platform body is lowered by the lifting legs so that the fixing assembly is connected to the columns of the offshore foundation.

[0021] Compared with the related art, the present invention has the following beneficial effects:

[0022] 1. The utility model combines the method of adjusting the height of the platform body by lifting the pile legs and driving the fixing assembly to extend to the outside of the edge of the platform body by the extension assembly. This can achieve the flexible adjustment of the position of the fixing assembly without moving the position of the operation and maintenance platform, so that the operation and maintenance platform and the offshore foundation are fixed to each other, which is conducive to improving the convenience and operability of fixing the operation and maintenance platform.

[0023] 2. The utility model arranges the extension assembly on the surface of the platform body facing away from the sea level, so that the extension assembly is easy to observe and operate, which is beneficial to improving the speed and success rate of connection with the offshore foundation in a complex and shaking wave environment, and at the same time, it is also convenient for mechanical maintenance.

[0024] 3. The utility model sets at least two engaging grooves through the fixing assembly, which are used to respectively nest the columns of the offshore foundation, so that there are at least two positions between the operation and maintenance platform and the offshore foundation that are engaged, effectively preventing the operation and maintenance platform from swinging when affected by waves.

[0025] 4. The utility model arranges at least two interlocking grooves in a one-to-one correspondence on different second driving members, so that the interlocking grooves can move freely in a direction perpendicular to the moving direction of the first driving member. After the operation and maintenance platform approaches the offshore foundation, the distance between the two interlocking members can be adjusted according to the size of the offshore foundation to match offshore foundations of various sizes for operation and maintenance work.

[0026] 5. The utility model sets at least two interlocking grooves on the second driving member respectively, and then lays the track of the second driving member on the plate-shaped first driving member, so that the first driving member can drive at least two interlocking grooves at the same time when it moves, which is beneficial to improve the consistency and synchronization of the movement between the interlocking grooves. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural diagram of a self-elevating operation and maintenance platform in an embodiment of the present utility model;

[0028] Figure 2 for Figure 1 An enlarged view of the location of the fixing assembly is shown;

[0029] Figure 3 for Figure 2 The schematic diagram of the positions of the fitting protrusions and fitting grooves shown;

[0030] Figure 4 for Figure 3 A left side view of the engaging protrusion and the engaging groove shown;

[0031] Figure 5 This is a schematic structural diagram of a self-elevating operation and maintenance platform in the second embodiment of the present utility model.

[0032] Reference numerals:

[0033] 1. Platform body; 101. Deck; 2. Offshore foundation; 201. Column; 3. Fixing assembly; 301. Fitting groove; 302. Fitting protrusion; 303. Reinforcement; 4. Lifting legs; 5. Extension assembly; 501. First drive member; 502. Second drive member; 6. Second track; 7. Crane. DETAILED DESCRIPTION

[0034] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0035] Figure 1 It is a structural schematic diagram of the self-elevating operation and maintenance platform in an embodiment of the utility model.

[0036] The present invention provides a self-elevating operation and maintenance platform. Figure 1 The operation and maintenance platform includes: a platform body 1, lifting legs 4, a fixing assembly 3 and an extension assembly 5; the lifting legs 4 are arranged on the platform body 1 and are used to adjust the platform height; the fixing assembly 3 is used to fix the platform body 1 to the offshore foundation 2 to resist wave loads; the extension assembly 5 is connected to the fixing assembly 3 and is used to drive the fixing assembly 3 to extend out of the edge of the platform body 1.

[0037] In some specific embodiments, referring to Figure 1 The lifting legs 4 are arranged at the bottom of the platform body 1, and the platform body 1 is lifted to a predetermined working height by inserting the lifting legs 4 below into the seabed.

[0038] In some specific embodiments, the fixing assembly 3 may include a chimeric structure, a detachable fastener, a clamp connection structure or a mooring structure, etc., which is not limited in the present invention.

[0039] In some specific embodiments, referring to Figure 1 The extending component 5 can translate in the horizontal direction to drive the fixing component 3 to extend out of the edge of the platform body 1.

[0040] In some specific embodiments, referring to Figure 1 The edge of the platform body 1 is straight, and the moving direction of the extending component 5 is perpendicular to the edge of the platform body 1.

[0041] Figure 2 for Figure 1 An enlarged view of the location of the fixing assembly is shown.

[0042] In some embodiments of the present invention, reference Figure 2 The extending component 5 includes a first driving member 501 , which is in the shape of a plate and can be movably placed on one side edge of the platform body 1 .

[0043] In some specific embodiments, referring to Figure 2The deck 101 of the platform body 1 is rectangular in shape, the first driving member 501 is in the shape of a rectangular plate, and the first driving member 501 covers one side edge of the upper surface of the deck 101 of the platform body 1.

[0044] In some specific embodiments, referring to Figure 1 and Figure 2 The length of the first driving member 501 is close to the width value of the deck 101 of the platform body 1, and the first track of the first driving member 501 is arranged on both side edges of the deck 101 of the platform body 1 in the width direction.

[0045] Figure 5 This is a schematic structural diagram of a self-elevating operation and maintenance platform in the second embodiment of the present utility model.

[0046] In other specific embodiments, referring to Figure 5 The length of the first driving member 501 is close to the length value of the deck 101 of the platform body 1, and the first track of the first driving member 501 is arranged on both side edges of the deck 101 of the platform body 1 in the length direction.

[0047] In some embodiments of the present invention, reference Figure 2 The extending component 5 also includes a second driving member 502, and the fixing component 3 is connected to the first driving member 501 through the second driving member 502, wherein the moving direction of the second driving member 502 is perpendicular to the moving direction of the first driving member 501.

[0048] In some specific embodiments, the movement of the first driving member 501 and the second driving member 502 may be sliding or roller-type, etc., which is not limited in the present invention.

[0049] In some specific embodiments, referring to Figure 2 , the first driving member 501 moves along the length direction of the platform body 1, and the second driving member 502 moves along the width direction of the platform body 1.

[0050] In some embodiments of the present invention, reference Figure 2 The extending component 5 includes a first driving member 501, and the fixing component 3 is connected to the first driving member 501, wherein the first driving member 501 is arranged on the surface of the platform body 1 facing away from the sea level, and the fixing component 3 faces the sea level.

[0051] In some embodiments of the present invention, reference Figure 2 The extending component 5 further includes a second driving member 502 , and the first driving member 501 and the fixing component 3 are connected to the same side of the second driving member 502 .

[0052] In some specific embodiments, referring to Figure 2 , the first driving member 501 is connected to the upper surface of the deck 101 of the platform body 1, and the second driving member 502 is connected to the surface of the first driving member 501 facing away from the deck 101 of the platform body 1, that is, the second driving member 502 is connected to the upper surface of the first driving member 501.

[0053] In some specific embodiments, referring to Figure 2 The fixing assembly 3 is connected to the lower surface of the second driving member 502, the lifting leg 4 is lifted, and the extending assembly 5 is extended, so that the fixing assembly 3 moves to above the to-be-connected portion on the offshore foundation 2, and then the lifting leg 4 is lowered so that the fixing assembly 3 is connected to the to-be-connected portion on the offshore foundation 2.

[0054] In other specific embodiments, the fixing component 3 can be arranged on the upper surface of the second driving member 502. After the lifting legs 4 are lifted and the extending components 5 are extended, the fixing component 3 is moved to the bottom of the connection point on the offshore foundation 2. The lifting legs 4 continue to lift the fixing component 3 to connect to the connection point on the offshore foundation 2.

[0055] In some embodiments of the present invention, reference Figure 2 , the second track 6 of the second driving member 502 is laid on the first driving member 501.

[0056] In some specific embodiments, referring to Figure 2 The first driving member 501 is in the shape of a rectangular plate, and the second track 6 of the second driving member 502 is laid on the upper surface of the first driving member 501 along the length direction of the first driving member 501, so that when the first driving member 501 is extended out of the platform body 1, the second driving member 502 is driven by the second track 6 of the second driving member 502 to extend out of the edge of the deck 101 of the platform body 1.

[0057] In some specific embodiments, referring to Figure 2 The number of the second tracks 6 of the second driving member 502 is three, and the second tracks 6 of the second driving member 502 are evenly spaced apart from the first driving member 501 .

[0058] Figure 3 for Figure 2 Schematic diagram of the positions of the interlocking protrusions and the interlocking grooves shown.

[0059] In some embodiments of the present invention, reference Figure 2 and Figure 3The fixing assembly 3 includes at least two fitting grooves 301 , and the fitting grooves 301 are respectively arranged in different second driving members 502 for respectively nesting the columns 201 of the offshore foundation 2 .

[0060] In some specific embodiments, referring to Figure 2 and Figure 3 The two second driving members 502 can be movably arranged on the first driving member 501. According to the distance between the adjacent columns 201 of the offshore foundation 2, the distance between the two engaging grooves 301 is adjusted so that the engaging members are respectively engaged with the columns 201 in a one-to-one corresponding manner.

[0061] Figure 4 for Figure 3 The left side view of the mating protrusion and the mating groove is shown.

[0062] In some specific embodiments, referring to Figure 3 and Figure 4 The end of the column 201 of the offshore foundation 2 has an interlocking protrusion 302 that matches the shape of the interlocking groove 301. After the interlocking groove 301 moves to the top of the interlocking protrusion 302, the interlocking groove 301 is sleeved on the interlocking protrusion 302 by lowering the lifting leg 4.

[0063] In some other specific embodiments, the inner diameter of the fitting groove 301 is equal to the diameter of the column 201 , and the fitting groove 301 can be directly embedded in the end of the column 201 .

[0064] In some embodiments of the present invention, reference Figure 3 The fixing assembly 3 further includes a reinforcing portion 303 , which is disposed at the opening of the fitting groove 301 . The reinforcing portion 303 is cylindrical, and the internal space of the reinforcing portion 303 is connected to the fitting groove 301 .

[0065] In some specific embodiments, referring to Figure 4 The cross-sectional shape of the engaging groove 301 is the same as the cross-sectional shape and size of the hollow structure of the reinforcing portion 303 .

[0066] For example, referring to Figure 4 The hollow structures of the fitting groove 301 and the reinforcing portion 303 are both cylindrical or prismatic, and the axes of the hollow structures of the fitting groove 301 and the reinforcing portion 303 coincide with each other.

[0067] In some specific embodiments, a support member is arranged around the reinforcing portion 303. The support member can be a columnar part. The support member includes two ends, one end of which is connected to the second driving member 502, and the other end is connected to an end of the reinforcing portion 303 away from the mounting assembly.

[0068] In some specific embodiments, the support member is a linear columnar part, and the support member is inclined to the lower surface of the second driving member 502 .

[0069] In some embodiments of the present invention, reference Figure 4 The end of the reinforcement portion 303 is provided with a tapered structure.

[0070] In some embodiments of the present invention, reference Figure 4 The end of the engaging protrusion 302 on the column 201 of the offshore foundation 2 is provided with a conical structure.

[0071] In some embodiments of the present invention, a conical structure is provided at the end of the engaging groove 301 .

[0072] In some embodiments of the present invention, reference Figure 1 A crane 7 is provided on one side of the deck 101 of the platform body 1.

[0073] The present invention provides a method for connecting an offshore foundation. Figure 1 , including the following steps:

[0074] S01: Tow the operation and maintenance platform to the vicinity of offshore foundation 2;

[0075] S02: lifting the platform body 1 by lifting the pile legs 4;

[0076] S03: Extend the fixing assembly 3 from the platform body 1 through the extending assembly 5 and move it to above the column 201 of the offshore foundation 2;

[0077] S04: lowering the platform body 1 through the lifting legs 4 so that the fixing assembly 3 is connected to the columns 201 of the offshore foundation 2 .

[0078] In some specific embodiments, the self-elevating operation and maintenance platform can be moved to the vicinity of the offshore foundation 2 by self-propulsion or towing.

[0079] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. A self-elevating operation and maintenance platform, characterized in that: include: Platform entity (1); Lifting legs (4), provided on the platform body (1), for adjusting the platform height; A fixing assembly (3) for fixing the platform body (1) to an offshore foundation (2) to resist wave loads; The extending component (5) is connected to the fixing component (3) and is used to drive the fixing component (3) to extend out of the edge of the platform body (1).

2. The operation and maintenance platform according to claim 1, characterized in that: The extending assembly (5) comprises a first driving member (501), and the fixing assembly (3) is connected to the first driving member (501), wherein the first driving member (501) is arranged on a surface of the platform body (1) facing away from the sea level, and the fixing assembly (3) faces the sea level.

3. The operation and maintenance platform according to claim 2, characterized in that: The extending assembly (5) further comprises a second driving member (502), and the first driving member (501) and the fixing assembly (3) are connected to the same side of the second driving member (502).

4. The operation and maintenance platform according to claim 2, characterized in that: The extending assembly (5) further includes a second driving member (502), and the fixing assembly (3) is connected to the first driving member (501) via the second driving member (502), wherein the moving direction of the second driving member (502) is perpendicular to the moving direction of the first driving member (501).

5. The operation and maintenance platform according to claim 1, characterized in that: The extension assembly (5) comprises a first driving member (501), the first driving member (501) is plate-shaped, and the first driving member (501) can be movably placed on a side edge of the platform body (1).

6. The operation and maintenance platform according to claim 5, characterized in that: The extension assembly (5) further comprises a second driving member (502), wherein a track of the second driving member (502) is laid on the first driving member (501).

7. The operation and maintenance platform according to claim 4, characterized in that: The fixing assembly (3) comprises at least two engaging grooves (301), wherein the engaging grooves (301) are arranged in a one-to-one correspondence with different second driving members (502) and are used to respectively embed the columns (201) of the offshore foundation (2).

8. The operation and maintenance platform according to claim 7, characterized in that: The fixing assembly (3) further includes a reinforcing portion (303), which is arranged at the opening of the fitting groove (301). The reinforcing portion (303) is cylindrical, and the internal space of the reinforcing portion (303) is connected to the fitting groove (301).

9. The operation and maintenance platform according to claim 8, characterized in that: The end of the reinforcement portion (303) is provided with a tapered structure.

Images