Offshore wind power jacket assembly type general assembly tool

Abstract

The application discloses a kind of offshore wind power jacket assembly type general assembly tool, comprising: several tool assemblies, for providing support for offshore wind power jacket, wherein the several tool assemblies are stacked in the direction perpendicular to ground in the way of detachable connection to each other to form a three-dimensional frame structure;Several cantilevered platforms are set in the one-to-one corresponding manner at the four top corner positions of the three-dimensional frame structure, for abutting contact to the offshore wind power jacket to provide support for it;Displacement monitoring alarm component is set on the cantilevered platform, for collecting displacement data generated by offshore wind power jacket during assembly process;Wherein, the cantilevered platform is configured to be able to adjust its length according to the displacement data working state.The core frame structure of the present application is segmented, connected by high-strength bolts, has high efficiency of assembly and disassembly, and is convenient for on-site transfer, storage and turnover.

Description

Technical Field

[0001] This invention relates to the field of auxiliary tooling technology, and more particularly to a prefabricated assembly tooling for offshore wind turbine jacket structures. Background Technology

[0002] With the increasing severity of global energy and environmental issues, offshore wind power, due to its lack of land occupation and fewer restrictions related to landscape, noise, and electromagnetic waves, has been listed as a key development industry by the state and has become a research hotspot in the engineering field. As the demand for green energy grows stronger, my country's wind power industry has developed rapidly. Offshore wind power has economies of scale and is located near power load centers, resulting in high utilization rates. Therefore, offshore wind power, as a major clean energy source, is receiving increasing attention and its development momentum is rapid. During the assembly of the jacket foundation, auxiliary tooling is usually required to support it. In existing technologies, all the overall assembly tooling for the jacket foundation is welded together. The tooling is manufactured into unit components and then connected by welding, improving the overall structural strength. The currently used tooling is a general-purpose cuboid structure, used only for auxiliary support and reinforcement during the segmented assembly of the jacket foundation. Steel plates are placed at the bottom of the tooling and welded to the outriggers to ensure the overall stability of the tooling. The aforementioned tooling has the following drawbacks: ① Difficulty in transferring and storing the tooling: As an integral structure, if the height of the jacket section is too high, it is inconvenient to move it out from inside the jacket; moreover, the transfer and storage occupy a lot of three-dimensional space, affecting the production layout of other workstations in the plant. ② High frequency of material replacement at the bottom of the tooling: The bottom legs are connected to the base plate by welding, and after the seam is cut, the bottom steel plate is inconvenient to reuse. ③ Simple tooling performance: Currently, the tooling is only used for auxiliary support and reinforcement during the segment assembly process of the jacket. There is still much room for development in terms of tooling quality and precision control, and safety control.

[0003] Therefore, this application aims to provide an assembly tooling for offshore wind turbine jackets that can overcome the above-mentioned defects. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an assembly tooling for offshore wind turbine jackets.

[0005] The objective of this invention is achieved through the following technical solution: A prefabricated assembly tooling for offshore wind turbine jackets, comprising: a plurality of tooling components for providing support for the offshore wind turbine jacket, wherein the plurality of tooling components are stacked and assembled in a detachably connected manner in a direction perpendicular to the ground to form a three-dimensional frame structure; a plurality of cantilevered platforms, which are arranged in a one-to-one correspondence at the four apex positions of the three-dimensional frame structure for abutting against and contacting the offshore wind turbine jacket to provide support; a displacement monitoring and alarm component, disposed on the cantilevered platforms, for collecting displacement data generated by the offshore wind turbine jacket during the assembly process; wherein the cantilevered platforms are configured to adjust their length according to the displacement data.

[0006] Preferably, the cantilever extension platform includes a fixed platform and a telescopic platform, the telescopic platform being able to slide relative to the fixed platform, and the displacement monitoring and alarm component being disposed on the telescopic platform, wherein when the difference between the displacement data collected by the displacement monitoring and alarm component and a set value is greater than a set threshold, the telescopic platform moves relative to the fixed platform.

[0007] Preferably, the displacement monitoring and alarm component includes an alarm and several displacement sensors. The displacement sensors are arranged on the telescopic platform in a one-to-one correspondence, and the alarm is arranged on the tooling component. When the difference between the displacement data collected by any displacement sensor and a set value is greater than a set threshold, the alarm is triggered to generate an alarm.

[0008] Preferably, the fixed platform is provided with a sliding cavity, the telescopic platform is provided with a sliding rod, the sliding cavity is provided with a hydraulic telescopic rod, the sliding rod is nested in the sliding cavity and connected to the hydraulic telescopic rod, wherein the tooling assembly is provided with a control module, the control module is communicatively connected to the hydraulic telescopic rod, and when the difference between the displacement data collected by the displacement sensor and the set value is greater than the set threshold, the control module can control the hydraulic telescopic rod corresponding to the displacement sensor to extend or shorten.

[0009] Preferably, the fixed platform is provided with a placement cavity, and the placement cavity is provided with a tensioned steel mesh connected to the telescopic platform, so that the tensioned steel mesh can move synchronously with the telescopic platform.

[0010] Preferably, the tooling assembly includes columns, crossbeams, and reinforcing beams. The columns are arranged perpendicular to the ground, and adjacent columns are connected and fixed by two crossbeams and two reinforcing beams, so that the entire tooling assembly presents a rectangular or square three-dimensional structure.

[0011] Preferably, the crossbeam is provided with a steel plate and a guardrail.

[0012] The present invention has the following advantages: (1) The core frame structure is made in sections and connected by high-strength bolts, which makes loading and unloading efficient and convenient for on-site transfer, storage and turnover.

[0013] (2) The cantilevered platform serves as a pedestrian passage for the assembly and welding of the guide frame, reducing the frequency of high-altitude operations and lowering the risks associated with high-altitude operations.

[0014] (3) Set up a displacement monitoring alarm component. When the displacement exceeds the limit, an early warning will be issued and the deviation will be corrected in time to ensure the dimensional accuracy of the guide frame.

[0015] (4) Set up walkways and platforms, guardrails, and special ladder cages to ensure safe, stable and controllable on-site construction operations.

[0016] (5) The quality and precision control is extremely significant: the total station measurement and displacement alarm components are used together to measure and control the process of jacket assembly on site. The whole process is monitored before, during and after the process to fully ensure the accuracy of jacket assembly and reduce the risk of quality rework.

[0017] (6) Technological leadership and brand effect: This tooling is the first of its kind in the country and represents the highest technical level of offshore wind power jacket construction. The application of this project will form a strong technical barrier and brand influence. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the prefabricated assembly tooling for offshore wind turbine jackets of the present invention. Figure 2 A top view of the assembled tooling for offshore wind turbine jackets; Figure 3 This is a connection diagram of each electronic module; Figure 4 This is a schematic diagram of the cantilever extension platform. Figure 5 This is a schematic diagram of the sliding cavity and the placement cavity; In the diagram, 1-tooling assembly, 2-cantilever extension platform, 3-displacement monitoring and alarm assembly, 4-guardrail, 1a-post, 1b-beam, 1c-reinforcing beam, 5-offshore wind power jacket, 6-steel plate, 2a-fixed platform, 2b-telescopic platform, 7-sliding cavity, 8-sliding rod, 9-placement cavity, 10-stretched steel mesh, 11-hydraulic telescopic rod, 3a-displacement sensor, 3b-alarm, 12-control module. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings. The scope of protection of the present invention is not limited to the following description: This fixture mainly consists of the following core modules: ① The core frame structure is made of H-beams and steel plates, with frame heights of 5m and 10m. The planar dimensions are determined based on the existing type of guide frame. ② The frames are connected by high-strength bolts, and the bottom legs and base plates are connected by high-strength bolts. ③ Cantilevered extension platforms are installed at the four top corners of the upper frame, serving as walkways for the assembly and welding of the guide frame closure joints. ④ Displacement monitoring and alarm components are installed at the four cardinal points of the fixture. When the displacement exceeds the limit, an early warning is issued to ensure timely correction and maintain the dimensional accuracy of the guide frame. ⑤ A walkway platform and guardrails are constructed on the upper frame to ensure safety during operation. A dedicated ladder cage is also provided for personnel access and the transfer of small tools. Several tooling components 1 are used to provide support for the offshore wind turbine jacket 5. These tooling components 1 are stacked and assembled in a detachable manner in a direction perpendicular to the ground to form a three-dimensional frame structure. Several cantilevered platforms 2 are positioned at the four corners of the three-dimensional frame structure in a one-to-one correspondence to provide support to the offshore wind turbine jacket 5. A displacement monitoring and alarm component 3 is installed on the cantilevered platforms 2 to collect displacement data generated during the assembly of the offshore wind turbine jacket 5. The cantilevered platforms 2 are configured to adjust their length based on the displacement data. The cantilevered platforms 2 include a fixed platform 2a and a telescopic platform 2b. The telescopic platform 2b can slide relative to the fixed platform 2b. The displacement monitoring and alarm component 3 is installed on the telescopic platform 2b. When the difference between the displacement data collected by the displacement monitoring and alarm component 3 and a set value exceeds a set threshold, the telescopic platform 2b moves relative to the fixed platform 2a. The displacement monitoring and alarm component 3 includes an alarm 3b and several displacement sensors 3a. The displacement sensors 3a are arranged in a one-to-one correspondence on the telescopic platform 2b, and the alarm 3b is mounted on the tooling component 1. When the difference between the displacement data collected by any displacement sensor 3a and a set value exceeds a set threshold, the alarm 3b is triggered. A sliding cavity 7 is provided on the fixed platform 2a, and a sliding rod 8 is provided on the telescopic platform 2b. A hydraulic telescopic rod 11 is installed in the sliding cavity 7, and the sliding rod 8 is nested within the sliding cavity 7 and connected to the hydraulic telescopic rod 11. A control module 12 is provided on the tooling component 1, and the control module 12 is communicatively connected to the hydraulic telescopic rod 11. When the difference between the displacement data collected by the displacement sensor 3a and the set value exceeds a set threshold, the control module 12 can control the hydraulic telescopic rod 11 corresponding to that displacement sensor 3a to extend or shorten. A placement cavity 9 is provided on the fixed platform 2a, and a tensioned steel mesh 10 connected to the telescopic platform 2b is provided in the placement cavity 9, so that the tensioned steel mesh 10 can move synchronously with the telescopic platform 2b.The tooling assembly 1 includes columns 1a, crossbeams 1b, and reinforcing beams 1c. The columns 1a are arranged perpendicular to the ground. Adjacent columns 1a are connected and fixed by two crossbeams 1b and two reinforcing beams 1c, so that the entire tooling assembly 1 has a rectangular or square three-dimensional structure. A steel plate 6 and a guardrail 4 are provided on the crossbeams 1b.

[0020] The specific implementation method is as follows: like Figures 1 to 5 As shown, this application provides an assembled assembly tooling for offshore wind turbine jackets, including several detachably connected tooling components 1, a cantilevered platform 2, a displacement monitoring and alarm component 3, and a guardrail 4. The tooling components 1 are three-dimensional frames formed from H-beams and steel plates. Each tooling component 1 can be designed to be 5 meters high, and the set height requirement can be achieved by stacking them vertically. The tooling components 1 are detachably connected to each other using high-strength bolts. In the prior art, all assembly tooling uses welded connections. The tooling is manufactured into unit components and then connected by welding, which improves the overall structural strength. However, since the tooling is an integral structure, if the jacket section height is too high, it is not convenient to move it out of the jacket; and transportation and storage occupy a lot of three-dimensional space, affecting the production layout of other workstations on site. This application solves the problem of the tooling being difficult to move and store by using detachable connections between the tooling components 1.

[0021] Preferably, the tooling assembly 1 is welded together from 4 uprights 1a, 8 crossbeams 1b, and 8 reinforcing beams 1c. The uprights 1a are set perpendicular to the ground, and adjacent uprights 1a are connected and fixed by 2 crossbeams 1b and 2 reinforcing beams 1c, so that the entire tooling assembly 1 has a rectangular or square three-dimensional structure. A cantilevered platform 2 can be set on the topmost tooling assembly 1 of the offshore wind turbine jacket assembly. A cantilevered platform 2 can be set at each corner of the topmost tooling assembly 1. The cantilevered platform 2 can be connected to the offshore wind turbine jacket 5, serving as a pedestrian passage for the assembly and welding of the jacket closure joint, reducing the frequency of high-altitude operations and lowering the risks of high-altitude operations. A steel plate 6 can be laid on the crossbeams 1b at the top of the topmost tooling assembly 1 for pedestrian passage, facilitating the movement of construction personnel between the 4 cantilevered platforms 2. The top beam 1b of the top tooling assembly 1 can be equipped with a guardrail 4 to ensure safety during operation. The bottom tooling assembly 1 is connected and fixed to the ground by prefabricated bolts. The support legs and bottom support steel plate of tooling assembly 1 are disposable materials, thus solving the problem of low utilization rate of the bottom tooling. Understandably, to facilitate the movement of construction personnel, a ladder cage can be installed on tooling assembly 1 to lift personnel, materials, and machinery to the top tooling assembly.

[0022] Preferably, the cantilevered platform 2 includes a fixed platform 2a and a telescopic platform 2b. The fixed platform 2a is fixedly mounted on the tooling assembly 1 by welding or other means. The telescopic platform 2b is slidably mounted on the fixed platform 2a, and can slide relative to the fixed platform 2a, thereby controlling the contact and separation between the end of the telescopic platform 2b and the offshore wind turbine jacket 5. Specifically, the fixed platform 2a is provided with several sliding cavities 7, and the telescopic platform 2b is provided with several sliding rods 8, which can be nested in the sliding cavities 7. The fixed platform 2a is also provided with a placement cavity 9, in which a tensioned steel mesh 10 is placed. The tensioned steel mesh 10 can be connected to the telescopic platform 2b, and when the distance between the telescopic platform 2b and the fixed platform 2a increases, the tensioned steel mesh 10 can be pulled out to fill the gap between the telescopic platform 2b and the fixed platform 2a. Each sliding cavity 7 can be equipped with a hydraulic telescopic rod 11, which can be connected to the sliding rod 8. The hydraulic telescopic rod 11 can provide driving force for the movement of the telescopic platform 2b. During the assembly of the offshore wind turbine jacket 5, the telescopic platform 2a can abut against the offshore wind turbine jacket 5 to provide support, thereby ensuring the stability of the offshore wind turbine jacket 5 during the assembly process.

[0023] Preferably, the displacement monitoring and alarm component 3 includes four displacement sensors 3a and one alarm 3b. The alarm 3b is communicatively connected to the displacement sensors 3a, and triggers an alarm when the displacement data received by the alarm 3b from the displacement sensors 3a exceeds its set threshold. Each telescopic platform 2b has a displacement sensor 3a installed at its end that contacts the offshore wind turbine jacket 5, allowing the displacement generated during the installation of the offshore wind turbine jacket 5 to be collected. It is understood that the assembled offshore wind turbine jacket assembly also includes a control module 12 mounted on the tooling component 1. The control module 12 is communicatively connected to the hydraulic telescopic rod 11 and the displacement sensors 3a. The control module 12 can generate a control signal to extend or shorten the hydraulic telescopic rod 11 when the interpolation between the displacement data collected by the displacement sensors and the set value exceeds the set threshold. For example, when the displacement data exceeds the set value, the hydraulic telescopic rod 11 is controlled to extend to strengthen the support for the offshore wind turbine jacket 5. It is also understandable that, in order to further improve the installation quality, a total station can be used for measurement during the installation process, and the entire process can be monitored before, during and after the installation to fully ensure the assembly accuracy of the jacket structure and reduce the risk of quality rework.

[0024] The specific implementation method of this application is as follows: ① Fabrication of 5m and 10m high frames, fabrication of base plates, procurement and fabrication of bolts and other facilities. ② Simulation of the tooling plane position, after site clearing, laying of base plates, installation of the bottom 10m high frame, and reinforcement using high-strength bolts. ③ Installation of the middle layer frame, and reinforcement using high-strength bolts. ④ Installation of the top high frame (railings and walkways are pre-welded and installed), and reinforcement using high-strength bolts. ⑤ Installation of the cantilevered platform, displacement alarm components, and ladder cage. ⑥ Commissioning after overall acceptance.

[0025] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A prefabricated assembly tooling for offshore wind turbine jackets, characterized in that, include: A plurality of tooling components (1) are used to provide support for offshore wind turbine jacket (5), wherein the plurality of tooling components (1) are stacked and assembled in a manner that allows them to be detachably connected to each other in a direction perpendicular to the ground to form a three-dimensional frame structure. Several cantilevered platforms (2) are arranged in a one-to-one correspondence at the four apex positions of the three-dimensional frame structure to abut against and contact the offshore wind turbine jacket (5) to provide support for it; The displacement monitoring and alarm component (3) is installed on the cantilever extension platform (2) and is used to collect displacement data generated by the offshore wind power jacket (5) during the assembly process. The cantilever extension platform (2) is configured to adjust its length according to the displacement data.

2. The prefabricated assembly tooling for offshore wind turbine jackets according to claim 1, characterized in that, The cantilever extension platform (2) includes a fixed platform (2a) and a telescopic platform (2b). The telescopic platform (2b) is capable of sliding relative to the fixed platform (2b). The displacement monitoring alarm component (3) is disposed on the telescopic platform (2b). When the difference between the displacement data collected by the displacement monitoring alarm component (3) and the set value is greater than the set threshold, the telescopic platform (2b) moves relative to the fixed platform (2a).

3. The assembled assembly tooling for offshore wind turbine jackets according to claim 2, characterized in that, The displacement monitoring alarm component (3) includes an alarm (3b) and several displacement sensors (3a). The displacement sensors (3a) are arranged on the telescopic platform (2b) in a one-to-one correspondence manner. The alarm (3b) is arranged on the tooling component (1). When the difference between the displacement data collected by any displacement sensor (3a) and the set value is greater than the set threshold, the alarm (3b) is triggered to generate an alarm.

4. The prefabricated assembly tooling for offshore wind turbine jackets according to claim 3, characterized in that, The fixed platform (2a) is provided with a sliding cavity (7), the telescopic platform (2b) is provided with a sliding rod (8), the sliding cavity (7) is provided with a hydraulic telescopic rod (11), the sliding rod (8) is nested in the sliding cavity (7) and connected to the hydraulic telescopic rod (11), wherein the tooling assembly (1) is provided with a control module (12), the control module (12) is communicatively connected to the hydraulic telescopic rod (11), when the difference between the displacement data collected by the displacement sensor (3a) and the set value is greater than the set threshold, the control module (12) can control the hydraulic telescopic rod (11) corresponding to the displacement sensor (3a) to extend or shorten.

5. The prefabricated assembly tooling for offshore wind turbine jackets according to claim 4, characterized in that, The fixed platform (2a) is provided with a placement cavity (9), and a stretched steel mesh (10) connected to the telescopic platform (2b) is provided in the placement cavity (9), so that the stretched steel mesh (10) can move synchronously with the telescopic platform (2b).

6. The prefabricated assembly tooling for offshore wind turbine jackets according to claim 1, characterized in that, The tooling assembly (1) includes a column (1a), a crossbeam (1b), and a reinforcing beam (1c). The column (1a) is set perpendicular to the ground. Two adjacent columns (1a) are connected and fixed by two crossbeams (1b) and two reinforcing beams (1c), so that the entire tooling assembly (1) presents a rectangular or square three-dimensional structure.

7. The prefabricated assembly tooling for offshore wind turbine jackets according to claim 6, characterized in that, The crossbeam (1b) is provided with a steel plate (6) and a guardrail (4).

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