A multi-section climbing unit suitable for offshore wind power single pile foundation

Abstract

The utility model relates to the technical field of ladder stander, provide a kind of multi-section climbing unit suitable for offshore wind power single-pile foundation, including ship berthing component, straight ladder stander, intermediate buffer platform, transverse support pipe, ring ladder, outer platform and the several circle beams of being set from top to bottom in the outer wall of offshore wind power single-pile foundation, and circle beam is fixedly connected with offshore wind power single-pile foundation;Ship berthing component, straight ladder stander, intermediate buffer platform, ring ladder and outer platform are all fixed on circle beam by transverse support pipe;Ship berthing component includes two parallelly arranged steel pipes;Straight ladder stander is arranged between two parallelly arranged steel pipes, and the starting end of straight ladder stander is at a certain height from mean sea level, and vertically extends to one end of intermediate buffer platform;Ring ladder is the structure of ascending along offshore wind power single-pile foundation ring in the sea, ascending with certain inclination from intermediate buffer platform along the outer wall of offshore wind power single-pile foundation, and terminal connects outer platform.It reduces personnel fatigue, and improves anti-falling security simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of ladder technology, and in particular to a multi-segment climbing unit suitable for offshore wind power monopile foundations. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] As of 2023, the cumulative installed capacity of offshore wind power worldwide has exceeded 60GW. Large-diameter monopile foundations are the preferred form of support structure for offshore wind power, accounting for more than 80% of the market share. They are especially suitable for sea areas with a water depth of less than 30 meters and stable seabed geological conditions.

[0004] Monopile foundations typically require a ladder system for maintenance personnel to climb to different platforms for equipment repair, inspection, and emergency operations. Traditional solutions often employ a vertical ladder structure, where a straight ladder is installed directly from the bottom of the berthing component along the outer wall of the pile to the top platform. However, this design has significant drawbacks in practical applications:

[0005] Poor climbing safety: Straight ladders often have a vertical height of tens of meters, and continuous climbing can easily lead to fatigue. In addition, there is a lack of intermediate buffer platforms for high-altitude operations, resulting in a high risk of falling.

[0006] Low space utilization: The straight ladder is attached to one side of the pile, and the ladder body is narrow, which cannot meet the needs of temporary tool storage and personnel avoidance, resulting in low equipment transportation efficiency.

[0007] The path planning is limited: the straight ladder only provides a one-way vertical passage. If multiple pieces of equipment at different heights of the pile need to be inspected, it is necessary to go up and down repeatedly, resulting in low work efficiency. Utility Model Content

[0008] To address the shortcomings of existing technologies, this utility model provides a multi-segment climbing unit suitable for offshore wind turbine monopile foundations. Through a composite path design of "straight ladder + intermediate buffer platform + circular ladder", the traditional single straight ladder is decomposed into multiple climbing units. The intermediate buffer platform provides a physical buffer, and the circular ladder rises in a circular manner along the pile body of the offshore wind turbine monopile foundation, reducing the vertical height of a single climb and reducing personnel fatigue. At the same time, the circular structure forms a natural gripping guardrail, improving fall safety.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] The first aspect of this utility model provides a multi-segment climbing unit suitable for offshore wind power monopile foundations, including a mooring component, a straight climbing ladder, an intermediate buffer platform, a transverse support pipe, a ring ladder, an outer platform, and several ring beams fitted from top to bottom on the outer wall of the offshore wind power monopile foundation, and the ring beams are fixedly connected to the offshore wind power monopile foundation.

[0011] The berthing component is fixed to the ring beam via connecting pipes, the intermediate buffer platform is fixed to the ring beam via connecting pipes and transverse support pipes, and the annular ladder and outer platform are both fixed to the ring beam via transverse support pipes.

[0012] The berthing component includes two parallel steel pipes;

[0013] The straight ladder is set between two parallel steel pipes and is fixedly connected to the steel pipes. The starting end of the straight ladder is at a certain height above the average sea level and extends vertically upward to one end of the intermediate buffer platform.

[0014] The ring ladder is a structure that rises in a ring from the outer wall of the offshore wind turbine monopile foundation. It rises at a certain angle from the middle buffer platform along the outer wall of the offshore wind turbine monopile foundation and connects to the outer platform at the end.

[0015] Furthermore, several longitudinal support pipes are evenly arranged on the outer side of the offshore wind turbine monopile foundation. The central axis of the longitudinal support pipes is parallel to the central axis of the offshore wind turbine monopile foundation, and each longitudinal support pipe runs through all the ring beams.

[0016] Furthermore, the starting end of the straight ladder is 2-3 meters above the average sea level.

[0017] Furthermore, the inner diameter of the intermediate buffer platform matches the outer diameter of the ring beam.

[0018] Furthermore, the surface of the intermediate buffer platform is covered with an anti-slip grating.

[0019] Furthermore, the intermediate buffer platform rises at an angle of 30-40° along the outer wall of the offshore wind turbine monopile foundation.

[0020] Furthermore, the ladder frame of the circular ladder is made of segmented prefabricated arc-shaped steel components, with each segment having an arc length corresponding to a central angle of 30-45°, and is connected by bolts to form a continuous ring.

[0021] Furthermore, the spacing between the steps of the annular ladder is ≤250mm.

[0022] Furthermore, the inner side of the circular ladder is provided with an arc-shaped anti-slip tread.

[0023] Furthermore, an emergency cabin is installed on the outer platform.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] The present invention describes a multi-segment climbing unit suitable for offshore wind turbine monopile foundations. Through a composite path design of "straight ladder + intermediate buffer platform + circular ladder", the traditional single straight ladder is decomposed into multiple climbing units. The intermediate buffer platform provides a physical buffer, and the circular ladder rises in a circular manner along the pile body of the offshore wind turbine monopile foundation, reducing the vertical height of a single climb and reducing personnel fatigue. At the same time, the circular structure forms a natural gripping guardrail, improving fall safety. Attached Figure Description

[0026] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments and descriptions of this utility model are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0027] Figure 1 A three-dimensional structural diagram of the multi-segment climbing unit suitable for offshore wind power monopile foundations provided by this utility model;

[0028] Figure 2 A side view of the multi-segment climbing unit for offshore wind power monopile foundations provided by this utility model;

[0029] Figure 3 A top view of the multi-segment climbing unit for offshore wind power monopile foundations provided by this utility model. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0033] In this utility model, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various components or elements of this utility model and do not specifically refer to any component or element in this utility model. They should not be construed as limiting this utility model.

[0034] In this utility model, terms such as "fixed connection," "connected," and "joined" should be interpreted broadly, indicating a fixed connection, an integral connection, or a detachable connection; a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be determined according to the specific circumstances, and should not be construed as a limitation of this utility model.

[0035] Where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0036] This embodiment provides a multi-segment climbing unit suitable for offshore wind power monopile foundations.

[0037] This embodiment provides a multi-segment climbing unit suitable for offshore wind power monopile foundations, such as... Figure 1 and Figure 2 As shown, it includes: ring beam 1, berthing component 2, straight ladder 3, longitudinal support pipe 4, intermediate buffer platform 5, transverse support pipe 6, circular ladder 7, emergency cabin 8, outer platform 9, and connecting pipe 10.

[0038] like Figure 3 As shown, the ring beam 1 is fitted onto the outer wall of the offshore wind power monopile foundation 11. That is, several ring beams 1 are fitted onto the outer wall of the offshore wind power monopile foundation 11 from top to bottom, and the offshore wind power monopile foundation 11 and the ring beams 1 are fixedly connected. The two can also be integrally formed structures.

[0039] Several longitudinal support pipes 4 are evenly arranged on the outer side of the offshore wind power monopile foundation 11. The central axis of the longitudinal support pipes 4 is parallel to the central axis of the offshore wind power monopile foundation 11, and each longitudinal support pipe 4 passes through all the ring beams 1. The longitudinal support pipes 4 are fixedly connected to the ring beams 1, for example by welding, to play a fixing role.

[0040] The berthing component 2 includes two parallel steel pipes, with its central axis parallel to the central axis of the offshore wind power monopile foundation 11. The berthing component 2 is fixed to the ring beam 1 by a connecting pipe 10.

[0041] A straight ladder 3 is installed between two parallel steel pipes of the mooring component 2. The starting end of the straight ladder 3 is 2-3 meters above the average sea level and extends vertically upward to one end of the intermediate buffer platform 5.

[0042] The two sides of the straight ladder 3 are fixed to the mooring component 2 by connecting rods.

[0043] The intermediate buffer platform 5 extends circumferentially around the outer wall of the offshore wind turbine monopile foundation 11. The intermediate buffer platform 5 starts from the end of the straight ladder 3 and ends at the starting point of the ring ladder 7. The inner diameter of the intermediate buffer platform 5 matches the outer diameter of the ring beam 1. The intermediate buffer platform 5 is fixed by the transverse support pipe 6 and connecting pipe 10 that protrude outward from the ring beam 1.

[0044] The width of the intermediate buffer platform 5 is ≥1.2m, and the surface is covered with anti-slip grating.

[0045] The ring ladder 7 is a structure that rises in a ring from the offshore wind turbine monopile foundation 11. It rises from the middle buffer platform 5 along the outer wall of the offshore wind turbine monopile foundation 11 at an inclination angle of 30-40°, with a total climbing height of 8-12m, and connects to the outer platform 9 at the end.

[0046] The ladder frame of the circular ladder 7 is made of segmented prefabricated arc-shaped steel components. Each segment has an arc length corresponding to a central angle of 30-45°. They are connected by bolts to form a continuous ring. The step spacing of the circular ladder 7 is ≤250mm. The inner side is provided with an arc-shaped anti-slip tread. The circular ladder 7 is fixed to the ring beam 1 by the transverse support pipe 6.

[0047] The outer platform 9 is fixed by the transverse support pipe 6 that can be extended outward from the ring beam 1.

[0048] An emergency cabin 8 is installed on the outer platform 9.

[0049] The straight climbing ladder 3, the intermediate buffer platform 5, and the circular ladder 7 form a composite climbing path. Two such composite climbing paths can be constructed on a single offshore wind turbine monopile foundation.

[0050] This embodiment provides a multi-segment climbing unit suitable for offshore wind power monopile foundations. Through a composite path design of "straight ladder + intermediate buffer platform + circular ladder", the traditional single straight ladder is decomposed into multiple climbing units. The intermediate buffer platform provides a physical buffer, and the circular ladder reduces the vertical height of a single climb by ascending in a circular manner along the pile body of the offshore wind power monopile foundation, reducing personnel fatigue. At the same time, the circular structure forms a natural gripping guardrail, improving fall safety.

[0051] This embodiment provides a multi-segment climbing unit suitable for offshore wind power monopile foundations. The intermediate buffer platform and the outer platform are arranged circumferentially around the offshore wind power monopile foundation piles, providing temporary equipment storage areas and personnel avoidance space, facilitating multi-point maintenance with tools. The connection nodes between the intermediate buffer platform and the outer platform and the ring ladder can be equipped with anchoring interfaces to facilitate the rapid installation of external equipment such as anemometers and corrosion monitoring modules.

[0052] This embodiment provides a multi-segment climbing unit suitable for offshore wind power monopile foundations. The circular ladder and the straight ladder are set with different work flow lines. The operation and maintenance personnel can choose the optimal path according to the location of the target platform to avoid unnecessary back and forth. For example, routine inspections can be carried out directly to the core equipment area of ​​the outer platform through the circular ladder, while the straight ladder provides a fast evacuation channel in emergency situations, realizing the diversion of functional scenarios.

[0053] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-segment climbing unit suitable for offshore wind power monopile foundations, characterized in that: It includes berthing components, straight ladders, intermediate buffer platforms, transverse support pipes, ring ladders, outer platforms, and several ring beams fitted from top to bottom on the outer wall of the offshore wind turbine monopile foundation, with the ring beams fixedly connected to the offshore wind turbine monopile foundation. The berthing component is fixed to the ring beam via connecting pipes, the intermediate buffer platform is fixed to the ring beam via connecting pipes and transverse support pipes, and the annular ladder and outer platform are both fixed to the ring beam via transverse support pipes. The berthing component includes two parallel steel pipes; The straight ladder is set between two parallel steel pipes and is fixedly connected to the steel pipes. The starting end of the straight ladder is at a certain height above the average sea level and extends vertically upward to one end of the intermediate buffer platform. The ring ladder is a structure that rises in a ring from the outer wall of the offshore wind turbine monopile foundation. It rises at a certain angle from the middle buffer platform along the outer wall of the offshore wind turbine monopile foundation and connects to the outer platform at the end.

2. The multi-segment climbing unit suitable for offshore wind power monopile foundations as described in claim 1, characterized in that: Several longitudinal support pipes are evenly arranged on the outside of the offshore wind turbine monopile foundation. The central axis of the longitudinal support pipes is parallel to the central axis of the offshore wind turbine monopile foundation, and each longitudinal support pipe runs through all the ring beams.

3. A multi-segment climbing unit suitable for offshore wind power monopile foundations as described in claim 1, characterized in that: The starting point of the straight ladder is 2-3 meters above the average sea level.

4. A multi-segment climbing unit suitable for offshore wind power monopile foundations as described in claim 1, characterized in that: The inner diameter of the intermediate buffer platform matches the outer diameter of the ring beam.

5. A multi-segment climbing unit suitable for offshore wind turbine monopile foundations as described in claim 1, characterized in that: The surface of the intermediate buffer platform is covered with anti-slip grating.

6. A multi-segment climbing unit suitable for offshore wind power monopile foundations as described in claim 1, characterized in that: The intermediate buffer platform rises at an angle of 30-40° along the outer wall of the coastal wind turbine monopile foundation.

7. A multi-segment climbing unit suitable for offshore wind power monopile foundations as described in claim 1, characterized in that: The ladder frame of the circular ladder is made of segmented prefabricated arc-shaped steel components, with each segment having an arc length corresponding to a central angle of 30-45°, and they are connected by bolts to form a continuous ring.

8. A multi-segment climbing unit suitable for offshore wind power monopile foundations as described in claim 1, characterized in that: The spacing between the steps of the circular ladder is ≤250mm.

9. A multi-segment climbing unit suitable for offshore wind power monopile foundations as described in claim 1, characterized in that: The inner side of the circular ladder is provided with an arc-shaped anti-slip tread.

10. A multi-segment climbing unit suitable for offshore wind power monopile foundations as described in claim 1, characterized in that: An emergency cabin is installed on the external platform.

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