Underwater construction device of offshore wind turbine foundation

Abstract

The utility model relates to an underwater construction device of an offshore wind turbine foundation, the underwater construction device is used for being installed on the offshore wind turbine foundation, the underwater construction device comprises a bottom sealing plate, a steel casing, an arc-shaped steel beam and a connecting piece, the bottom sealing plate is provided with a through hole, and the bottom sealing plate is arranged on the offshore wind turbine foundation in a sleeved mode. The steel casing comprises an inner cavity and two opposite side edge plates, the side edge plates are fixedly arranged on the bottom sealing plate, the inner cavity can be formed by the bottom sealing plate and the two side edge plates, the arc-shaped steel beam comprises an arc-shaped part and two connecting parts arranged on the two sides of the arc-shaped part, the inner concave surface of the arc-shaped part is attached to the offshore wind turbine foundation, and the inner concave surface of the arc-shaped part abuts against the offshore wind turbine foundation. The connecting part is fixedly connected to the side plates, and a connecting piece is arranged on the connecting part and used for connecting the arc-shaped steel beams of the two side plates.

Description

Technical Field

[0001] This utility model relates to the field of offshore wind power technology, specifically to an underwater construction device for offshore wind turbine foundations. Background Technology

[0002] During the construction and operation of offshore wind turbine foundations, due to their inherent characteristics, the foundations located in the splash zone and water level fluctuation zone are highly susceptible to external factors such as wind, waves, and currents. Despite various protective measures implemented during design and construction, the surface coating of the foundation in these zones inevitably suffers localized damage, and even structural damage is common. Therefore, divers frequently need to descend underwater to repair, cut, and weld the surface coating in these splash and water level fluctuation zones. However, divers in these zones are highly vulnerable to interference and influence from waves and weather. On one hand, divers are easily impacted by waves, compromising their safety; on the other hand, underwater construction is difficult, inefficient, and time-consuming, while the quality of repairs is difficult to guarantee. Utility Model Content

[0003] In view of the deficiencies of the prior art described above, the technical problem to be solved by this utility model is to provide an underwater construction device for offshore wind turbine foundations, which can create a dry and safe underwater construction environment, and facilitate workers to carry out repair work in the splash zone and water level fluctuation zone.

[0004] To achieve the above objectives, this utility model provides an underwater construction device for offshore wind turbine foundations, used for installation on offshore wind turbine foundations. The underwater construction device includes a bottom sealing plate, a steel casing, an arc-shaped steel beam, and connectors. The bottom sealing plate has a through hole and is fitted onto the offshore wind turbine foundation. The steel casing includes an inner cavity and two oppositely arranged side plates. The side plates are fixedly mounted on the bottom sealing plate, and the bottom sealing plate and the two side plates can form an inner cavity. The arc-shaped steel beam includes an arc-shaped portion and two connecting portions arranged on both sides of the arc-shaped portion. The concave surface of the arc-shaped portion abuts against the offshore wind turbine foundation. The connecting portions are fixedly connected to the side plates, and connectors are provided on the connecting portions for connecting the arc-shaped steel beams of the two side plates.

[0005] Furthermore, a ladder is provided on the steel casing.

[0006] Furthermore, a submersible pump is installed in the cavity formed by the bottom sealing plate and the two side plates.

[0007] Furthermore, the side plate is provided with lifting lugs for lifting.

[0008] Furthermore, the connecting part of the arc-shaped steel beam is welded to the side plate.

[0009] Furthermore, a rubber pad layer is provided on the concave surface of the arc-shaped portion of the arc-shaped steel beam.

[0010] Furthermore, bolt holes are provided on both connecting parts of the arc-shaped steel beam, and the connecting component includes high-strength bolts for connecting the two arc-shaped steel beams.

[0011] Furthermore, two arc-shaped steel beams are provided on the side plate, and the two arc-shaped steel beams are respectively provided on the upper and lower sides of the side plate.

[0012] As described above, the underwater construction device for offshore wind turbine foundations involved in this utility model has the following beneficial effects:

[0013] By installing a bottom sealing plate and a steel casing, an inner cavity that is closed at the bottom and open at the top can be formed on the basis of the offshore wind turbine, which can create a dry and safe underwater construction environment, making it easier for workers to carry out repair work in the splash zone and water level fluctuation zone. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the underwater construction device in this utility model.

[0015] Figure 2 This is a top view of the underwater construction device of this utility model.

[0016] Figure 3 This is a cross-sectional view of the underwater construction device of this utility model.

[0017] Explanation of icon numbers

[0018] 1. Bottom sealing plate; 101. Through hole; 2. Steel casing; 201. Inner cavity; 202. Side plate; 203. Lifting lug; 3. Curved steel beam; 301. Curved part; 302. Connecting part; 4. Connecting piece; 5. Ladder; 6. Submersible pump. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. These embodiments are only used to illustrate this utility model and are not intended to limit it.

[0020] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] See Figures 1 to 3This utility model provides an underwater construction device for offshore wind turbine foundations, used for installation on offshore wind turbine foundations. The underwater construction device includes a bottom sealing plate 1, a steel casing 2, an arc-shaped steel beam 3, and connecting parts 4. The bottom sealing plate 1 has a through hole 101 and is fitted onto the offshore wind turbine foundation. Preferably, the positions of the bottom sealing plate 1 and the steel casing 2 can be flexibly set according to the position of the sea surface splash zone and the water level fluctuation zone, and a part of the steel casing 2 is located below the sea level, while the other part is located above the sea level. The steel casing 2 includes an inner cavity 201 and two oppositely arranged side plates 202. Preferably, the side plates 202 are semi-circular in shape. The side plates 202 are fixedly mounted on the bottom sealing plate 1, and the bottom sealing plate 1 and the two side plates 202 can form a [missing information - likely a shape or structure]. The inner cavity 201, specifically, is formed by the sides of two side plates 202 joining together and forming an inner cavity 201 that is closed at the bottom and open at the top with the bottom sealing plate 1. Preferably, a sealing structure for preventing seawater from entering is provided at the side joint of the two side plates 202. The arc-shaped steel beam 3 includes an arc-shaped part 301 and two connecting parts 302 provided on both sides of the arc-shaped part 301. The concave surface of the arc-shaped part 301 abuts against the offshore wind turbine foundation. The connecting parts 302 are fixedly connected to the side plates 202, and a connector 4 is provided on the connecting parts 302. The connector 4 is used to connect the arc-shaped steel beams 3 of the two side plates 202. Specifically, the two connecting parts 302 of one arc-shaped steel beam 3 are respectively connected to the two connecting parts 302 of the other arc-shaped steel beam 3 through the connector 4.

[0024] The basic working principle of the underwater construction device for offshore wind turbine foundations involved in this utility model is as follows: by setting a bottom sealing plate 1 and a steel casing 2, the bottom sealing plate 1 can be fitted onto the offshore wind turbine foundation through the through hole 101. The sides of the two side plates 202 are joined together and form an inner cavity 201 with the bottom closed and the top open with the bottom sealing plate 1. Workers can enter the inner cavity 201 to carry out repair work on the offshore wind turbine foundation, avoiding interference and influence from waves, weather, etc.

[0025] See Figures 1 to 3 The present invention will be further described below with reference to a specific embodiment:

[0026] In this embodiment, see Figure 1 As a preferred design, a ladder 5 is provided on the steel casing 2 to facilitate workers to enter and exit the inner cavity 201 formed by the bottom sealing plate 1 and the steel casing 2.

[0027] In this embodiment, see Figure 1 As a preferred design, a submersible pump 6 is installed in the inner cavity 201 formed by the bottom sealing plate 1 and the two side plates 202. When water enters the inner cavity 201, the submersible pump 6 can ensure that the water is discharged from the inner cavity 201 in a timely manner, so as to maintain a dry construction environment in the inner cavity 201.

[0028] In this embodiment, see Figure 1 As a preferred design, the side plate 202 is provided with lifting lugs 203 for lifting. When installing the side plate 202 on the offshore wind turbine foundation, the side plate 202 can be lifted to the position where the operation is required by the lifting lugs 203 and then installed, which improves the convenience of installing the side plate 202.

[0029] In this embodiment, see Figure 1 As a preferred design, the connecting part of the arc-shaped steel beam 3 is welded to the side plate 202. Welding facilitates the fixed connection of structures of different shapes and sizes and can improve the structural rigidity between the arc-shaped steel beam 3 and the side plate 202.

[0030] In this embodiment, see Figure 1 As a preferred design, a rubber pad is provided on the concave surface of the arc-shaped part 301 of the arc-shaped steel beam 3. When the concave surface of the arc-shaped part 301 of the arc-shaped steel beam 3 is in contact with the offshore wind turbine foundation, the rubber pad can reduce the wear of the arc-shaped part 301 on the offshore wind turbine foundation and play a certain protective role for the offshore wind turbine foundation.

[0031] In this embodiment, see Figure 1 As a preferred design, bolt holes are provided on both connecting parts 302 of the arc-shaped steel beam 3. The connecting piece 4 includes high-strength bolts for connecting the two arc-shaped steel beams 3. The arc-shaped steel beams 3 of the two side plates 202 are fixedly connected by high-strength bolts, which can improve the stability of the connection between the two arc-shaped steel beams 3.

[0032] In this embodiment, see Figure 1 As a preferred design, two arc-shaped steel beams 3 are provided on the side plate 202. The two arc-shaped steel beams 3 are respectively located on the upper and lower sides of the side plate 202, which can further improve the stability of the steel casing 2.

[0033] As can be seen from the above, the underwater construction device for offshore wind turbine foundations of this utility model has the following beneficial effects:

[0034] By setting up a bottom sealing plate 1 and a steel casing 2, an inner cavity 201 that is closed at the bottom and open at the top can be formed on the basis of the offshore wind turbine, which can create a dry and safe underwater construction environment, making it easier for workers to carry out repair work in the splash zone and water level fluctuation zone.

[0035] In summary, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0036] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. An underwater construction device for offshore wind turbine foundations, used for installation on offshore wind turbine foundations, characterized in that: The underwater construction device includes a bottom sealing plate (1), a steel casing (2), an arc-shaped steel beam (3), and a connector (4). The bottom sealing plate (1) has a through hole (101) and is fitted onto the offshore wind turbine foundation. The steel casing (2) includes an inner cavity (201) and two opposing side plates (202). The side plates (202) are fixedly mounted on the bottom sealing plate (1), and the bottom sealing plate (1) and the two side plates (202) can... An inner cavity (201) is formed. The arc-shaped steel beam (3) includes an arc-shaped part (301) and two connecting parts (302) provided on both sides of the arc-shaped part (301). The concave surface of the arc-shaped part (301) is attached to the offshore wind turbine foundation. The connecting parts (302) are fixedly connected to the side plate (202), and a connector (4) is provided on the connecting part (302). The connector (4) is used to connect the arc-shaped steel beam (3) of the two side plates (202).

2. The underwater construction device for offshore wind turbine foundations according to claim 1, characterized in that: A ladder (5) is provided on the steel casing (2).

3. The underwater construction device for offshore wind turbine foundations according to claim 1, characterized in that: A submersible pump (6) is installed in the cavity (201) formed by the bottom sealing plate (1) and the two side plates (202).

4. The underwater construction device for offshore wind turbine foundations according to claim 1, characterized in that: The side plate (202) is provided with lifting lugs (203) for lifting.

5. The underwater construction device for offshore wind turbine foundations according to claim 1, characterized in that: The connecting part of the arc-shaped steel beam (3) is welded to the side plate (202).

6. The underwater construction device for offshore wind turbine foundations according to claim 1, characterized in that: A rubber pad layer is provided on the concave surface of the arc-shaped part (301) of the arc-shaped steel beam (3).

7. The underwater construction device for offshore wind turbine foundations according to claim 1, characterized in that: Bolt holes are provided on both connecting parts (302) of the arc-shaped steel beam (3), and the connecting member (4) includes high-strength bolts for connecting the two arc-shaped steel beams (3).

8. The underwater construction device for offshore wind turbine foundations according to claim 1, characterized in that: Two arc-shaped steel beams (3) are provided on the side plate (202), and the two arc-shaped steel beams (3) are respectively provided on the upper and lower sides of the side plate (202).

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