Rotary embarkation device

Abstract

The invention relates to a rotary embarkation device which is arranged on a jacket mechanism of an offshore booster station, the bottom of the rotary embarkation device is connected with a lower jacket, the top of the rotary embarkation device is connected with a jacket platform, and the lower jacket comprises a frame body and main legs arranged at the bottom of the frame body. The rotary embarkation device comprises a spiral connecting mechanism and a spiral stair arranged on the spiral connecting mechanism, the spiral connecting mechanism comprises a plurality of transverse pipes, a plurality of vertical pipes and a plurality of connecting assemblies, one ends of the transverse pipes are fixedly connected with the main legs, and the other ends of the transverse pipes are fixedly connected with the vertical pipes; the height of the transverse pipes rises spirally along the frame body, a connecting assembly is connected between any two adjacent vertical pipes, the connecting assemblies are provided with embarkation openings for workers to go in and out, the bottom of the spiral staircase is fixedly connected with the transverse pipes, one side of the spiral staircase is fixedly connected with the lower jacket, and the other side of the spiral staircase is fixedly connected with the upper jacket. And the other side is fixedly connected with the vertical pipe and the connecting assembly respectively.

Description

Technical Field

[0001] The present invention relates to the field of offshore wind power generation, and particularly to a rotary boarding device. Background Art

[0002] The offshore booster station is the core facility of an offshore wind farm, undertaking important tasks such as electric energy collection, voltage boosting, and power transmission. The jacket structure of the offshore booster station includes a jacket platform, a lower jacket, and a steel pipe pile foundation, as shown in the attached drawings Figure 3 As shown, among them, the lower jacket includes a frame body and main legs. In recent years, with the tightening of nearshore wind farm site resources, the development of offshore wind power has gradually moved towards the "deep sea and far sea", making the offshore distance of the offshore booster station farther and farther, and also making the operation and maintenance difficulty of the offshore booster station higher and higher.

[0003] During the operation and maintenance process of the offshore booster station, it is necessary for staff to take an operation and maintenance ship to reach the lower jacket of the offshore booster station and enter the jacket platform from the lower jacket. In order to facilitate the staff to board the offshore booster station from the operation and maintenance ship, a climbing ladder is usually set on the lower jacket.

[0004] There are two structures for traditional climbing ladders. One is the top-leaning climbing ladder set on the main leg. In order to meet the berthing requirements of the operation and maintenance ship at different water levels, the overall structure is set to be relatively slender, with a small impact force that it can withstand, and the structure is easily damaged. Moreover, the top-leaning climbing ladder is usually in the form of a straight ladder, making it difficult for maintenance personnel to climb, with low convenience and safety. The other is the side-leaning climbing ladder set between two main legs. Its boarding points are relatively few, making it difficult to meet the boarding requirements of the operation and maintenance ship at different water levels. Moreover, there is no tight fit between the side of the operation and maintenance ship and the lower jacket, usually with a gap of 300 - 500 mm, which is greatly affected by the reciprocating waves, greatly reducing the boarding safety, and having a high requirement for the marine environment, and it can only be carried out when the sea surface is relatively stable. Summary of the Invention

[0005] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a rotary boarding device that can provide multiple boarding points, meet the boarding operations at different water levels, ensure the convenience of maintenance personnel boarding, and improve the boarding safety of maintenance personnel.

[0006] To achieve the above object, the present invention provides a rotary boarding device which is arranged on the jacket structure of an offshore booster station. The bottom of the rotary boarding device is connected to the lower jacket, and the top is connected to the jacket platform. The lower jacket includes a frame body and main legs arranged at the bottom of the frame body. The rotary boarding device includes a spiral connection mechanism and a rotary staircase arranged on the spiral connection mechanism. The spiral connection mechanism includes a plurality of horizontal pipes, a plurality of vertical pipes and a plurality of connection components. One end of the horizontal pipe is fixedly connected to the main leg, and the other end is fixedly connected to the vertical pipe. The heights of the plurality of horizontal pipes all spiral upward along the frame body. A connection component is connected between any two adjacent vertical pipes. A boarding opening for staff to enter and exit is provided on the connection component. The bottom of the rotary staircase is fixedly connected to the horizontal pipe. One side of the rotary staircase is fixedly connected to the lower jacket, and the other side is fixedly connected to the vertical pipe and the connection component respectively.

[0007] Further, the rotary staircase includes a plurality of staircase components and a plurality of rest platforms. A support component fixedly connected to the horizontal pipe is arranged at the bottom of the rest platform. A staircase component is connected between any two adjacent rest platforms. One side of the staircase component is fixedly connected to the lower jacket, and the other side is fixedly connected to the vertical pipe and the connection component respectively.

[0008] Further, the rotary boarding device further includes an auxiliary structure. The auxiliary structure includes a protective railing and a boarding railing. A protective railing is arranged on one side of the staircase component close to the lower jacket. A boarding railing is arranged on one side of the staircase component close to the connection component. A boarding opening identical to that of the connection component is provided on the boarding railing. Protective railings are arranged on both sides of the rest platform.

[0009] Further, the auxiliary structure further includes a handrail. A handrail is arranged at the boarding opening of the connection component.

[0010] Further, the auxiliary structure further includes a semi-circular rubber fender. The semi-circular rubber fender is arranged on the vertical pipe.

[0011] Further, the auxiliary structure further includes a mooring bitt. The mooring bitt is arranged on the vertical pipe.

[0012] As described above, the rotary jacking and boarding device involved in the present invention has the following beneficial effects:

[0013] By setting up a spiral connection mechanism and a rotary boarding device, among which the horizontal pipe, vertical pipe and connection components can provide a relatively large overall structural stiffness for the spiral connection mechanism, greatly improving the impact resistance, avoiding damage to the rotary abutment boarding device during operation, and increasing the overall service life; the boarding openings on the connection components can provide multiple boarding points for the staff, meeting the docking requirements of the maintenance ship at different water levels and facilitating the boarding operation at different water levels; at the same time, the spiral connection mechanism can also greatly shorten the boarding distance of the staff, reducing the requirements for the marine environment, enabling the maintenance work of the jacket structure to have strong adaptability to the marine environment, and changing the traditional boarding method of the staff, providing effective guarantee for the safety and convenience of the staff to board. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG. is a schematic structural view of the rotary boarding device in the present invention.

[0015] Figure 2 FIG. is an installation schematic view of the rotary boarding device in the present invention.

[0016] Figure 3 FIG. is a schematic structural view of the jacket structure.

[0017] DESCRIPTION OF THE REFERENCE NUMERALS IN THE DRAWINGS

[0018] 1. Spiral connection mechanism, 101. Horizontal pipe, 102. Vertical pipe, 103. Connection component, 131. Boarding opening, 2. Rotary staircase, 201. Staircase component, 202. Rest platform, 203. Support component, 3. Jacket structure, 301. Jacket platform, 302. Lower jacket, 321. Frame main body, 322. Main leg, 303. Steel pipe pile foundation. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following further describes in detail the specific embodiments of the present invention with reference to the drawings. These embodiments are only used to illustrate the present invention and are not intended to limit the present invention.

[0020] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In addition, in the description of the present invention, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0023] See Figures 1 to 3 , the present invention provides a rotary boarding device, which is arranged on the jacket structure 3 of an offshore booster station. The bottom of the rotary boarding device is connected to the lower jacket 302, and the top is connected to the jacket platform 301. The lower jacket 302 includes a frame body 321 and main legs 322 arranged at the bottom of the frame body 321. The rotary boarding device includes a screw connection mechanism 1 and a rotary staircase 2 arranged on the screw connection mechanism 1. The screw connection mechanism 1 includes a plurality of horizontal pipes 101, a plurality of vertical pipes 102, and a plurality of connection components 103. One end of the horizontal pipe 101 is fixedly connected to the main leg 322, and the other end is fixedly connected to the vertical pipe 102. The heights of the plurality of horizontal pipes 101 all rise spirally along the frame body 321. A connection component 103 is connected between any two adjacent vertical pipes 102. A boarding opening 131 for staff to enter and exit is provided on the connection component 103. Preferably, a plurality of boarding openings 131 are provided on the connection component 103; the bottom of the rotary staircase 2 is fixedly connected to the horizontal pipe 101, one side of the rotary staircase 2 is fixedly connected to the lower jacket 302, and the other side is fixedly connected to the vertical pipe 102 and the connection component 103 respectively.

[0024] The basic working principle of the rotary docking boarding device involved in the present invention is as follows: When maintenance and operation are required at the offshore booster station and the staff take the maintenance ship to reach the offshore booster station, since the rotary docking boarding device is arranged on the jacket structure 3, a part of the rotary docking boarding device is located below the sea level and another part is located above the sea level. The rotary docking boarding device provides multiple boarding points for the staff through the boarding openings 131 on the connection assembly 103. The staff can enter the rotary docking boarding device, that is, enter the spiral staircase 2, from the appropriate boarding opening 131 according to the actual height of the sea level, and enter the jacket platform 301 through the spiral staircase 2 for maintenance operations, meeting the docking requirements of the maintenance ship at different water levels, facilitating the boarding operations of the staff at different water levels. Moreover, through the spiral connection mechanism 1, the staff can directly board from the boarding openings 131 on the connection assembly 103, greatly shortening the boarding distance. Even in a harsh marine environment, the staff can complete the boarding, enabling the maintenance work of the jacket structure 3 to have strong adaptability to the marine environment and improving the boarding safety of the staff.

[0025] See Figures 1 to 3 , the following further illustrates the present invention with a specific embodiment:

[0026] In this embodiment, see Figure 1 and Figure 2 As a preferred design, the spiral staircase 2 includes a plurality of staircase components 201 and a plurality of landing platforms 202. The bottom of the landing platform 202 is provided with a support assembly 203 fixedly connected to the horizontal pipe 101. Any two adjacent landing platforms 202 are connected by a staircase component 201. One side of the staircase component 201 is fixedly connected to the lower jacket 302, and the other side is respectively fixedly connected to the vertical pipe 102 and the connection assembly 103. Preferably, the staircase component 201 is set as an inclined ladder.

[0027] In this embodiment, see Figure 1 and Figure 2 As a preferred design, the rotary boarding device further includes an auxiliary structure. The auxiliary structure includes a protective railing and a boarding railing. A protective railing is provided on the side of the staircase component 201 close to the lower jacket 302, and a boarding railing is provided on the side of the staircase component 201 close to the connection assembly 103. The boarding railing is provided with the same boarding openings 131 as the connection assembly 103, which can facilitate the staff to board. Protective railings are provided on both sides of the landing platform 202, which can ensure the safety of the staff during boarding.

[0028] In this embodiment, see Figure 1 and Figure 2, as a preferred design, the auxiliary structure further includes a handrail. A handrail is provided at the boarding opening 131 of the connecting assembly 103. The handrail is welded and fixed at the boarding opening 131, which can further enhance the safety of the staff during boarding operations.

[0029] In this embodiment, referring to Figure 1 and Figure 2 , as a preferred design, the auxiliary structure further includes a semi-circular rubber fender. The semi-circular rubber fender is arranged on the vertical pipe 102. Preferably, the arrangement direction of the semi-circular rubber fender is perpendicular to the boarding direction of the staff, and the semi-circular rubber fender is arranged at intervals with the connecting assembly 103, which can play a buffering role when the operation and maintenance ship docks, and avoid damage to the screw connection mechanism 1 by the operation and maintenance ship.

[0030] In this embodiment, referring to Figure 1 and Figure 2 , as a preferred design, the auxiliary structure further includes a bollard. The bollard is arranged on the vertical pipe 102. Preferably, the elevation of the bollard can be flexibly set according to the elevation of the actual boarding opening 131 when the staff boards, which is convenient for the mooring operation of the operation and maintenance ship.

[0031] As described above, the rotary top-leaning boarding device method involved in the present invention has the following beneficial effects:

[0032] By setting the screw connection mechanism 1 and the rotary staircase 2, wherein the horizontal pipe 101, the vertical pipe 102 and the connecting assembly 103 can provide greater overall structural stiffness for the screw connection mechanism 1, greatly improving the anti-impact ability, avoiding damage to the rotary top-leaning boarding device during operation, and improving the overall service life; the boarding openings 131 on the connecting assembly 103 can provide multiple boarding points for the staff, meeting the docking requirements of the operation and maintenance ship at different water levels and facilitating boarding operations at different water levels; at the same time, the screw connection mechanism 1 can also greatly shorten the boarding distance of the staff, reduce the requirements for the marine environment, enable the operation and maintenance work of the offshore booster station to have strong adaptability to the marine environment, and change the traditional boarding method of the staff, providing effective guarantees for the safety and convenience of the staff to board.

[0033] In summary, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0034] The above embodiments are only illustrative of the principles and effects of the present invention and are not used to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A rotary boarding device is provided on the jacket structure (3) of an offshore booster station. The bottom of the rotary boarding device is connected to the lower jacket (302), and the top is connected to the jacket platform (301). The lower jacket (302) includes a frame body (321) and main legs (322) provided at the bottom of the frame body (321), and is characterized in that: The rotary boarding device includes a spiral connection mechanism (1) and a spiral staircase (2) arranged on the spiral connection mechanism (1). The spiral connection mechanism (1) includes a plurality of horizontal pipes (101), a plurality of vertical pipes (102) and a plurality of connection components (103). One end of the horizontal pipe (101) is fixedly connected to the main leg (322), and the other end is fixedly connected to the vertical pipe (102). The heights of the plurality of horizontal pipes (101) increase spirally along the frame body (321). A connection component (103) is connected between any two adjacent vertical pipes (102). A boarding opening (131) for staff to enter and exit is formed on the connection component (103). The bottom of the spiral staircase (2) is fixedly connected to the horizontal pipe (101). One side of the spiral staircase (2) is fixedly connected to the lower jacket (302), and the other side is fixedly connected to the vertical pipe (102) and the connection component (103) respectively.

2. The rotary boarding device according to claim 1, wherein: The spiral staircase (2) includes a plurality of staircase components (201) and a plurality of landings (202). A support component (203) fixedly connected to the horizontal pipe (101) is arranged at the bottom of the landing (202). A staircase component (201) is connected between any two adjacent landings (202). One side of the staircase component (201) is fixedly connected to the lower jacket (302), and the other side is fixedly connected to the vertical pipe (102) and the connection component (103) respectively.

3. The rotary boarding device according to claim 2, wherein: The rotary boarding device further includes an auxiliary structure. The auxiliary structure includes a protective railing and a boarding railing. A protective railing is arranged on one side of the staircase component (201) close to the lower jacket (302). A boarding railing is arranged on one side of the staircase component (201) close to the connection component (103). A boarding opening (131) identical to that of the connection component (103) is formed on the boarding railing. Protective railings are arranged on both sides of the landing (202).

4. The rotary boarding device according to claim 3, wherein: The auxiliary structure further includes a handrail. A handrail is arranged at the boarding opening (131) of the connection component (103).

5. The rotary boarding device according to claim 4, characterized in that: The auxiliary structure further includes a semi-circular fender. The semi-circular fender is arranged on the vertical pipe (102).

6. The rotary boarding device according to claim 5, wherein: The auxiliary structure further includes a bollard. The bollard is arranged on the vertical pipe (102).

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