Offshore wind power operation and maintenance protection device

Abstract

The utility model relates to the technical field of wind power operation and maintenance, and disclose a kind of offshore wind power operation and maintenance protection device, including connecting mechanism, the connecting mechanism rear end is fixedly provided with multiple connecting blocks, the connecting mechanism is connected to offshore wind power equipment by multiple connecting blocks, the connecting mechanism front end is connected to operation and maintenance ship, the inside both sides position of the connecting mechanism front end is fixedly provided with adjustable protection mechanism;The adjustable protection mechanism includes protection frame, multiple opening positions in the protection frame are rotatably provided with connecting shaft, two between multiple connecting shaft vertical direction are fixedly connected, multiple connecting shaft front end are fixedly provided with adjustable rotating plate, and the side of three in the upper of multiple adjustable rotating plate is fixedly provided with first fixed column.The device is stable and safe, bilateral protection expands windproof range, adapts to offshore environment, convenient to operate, high strength, good stability, easy to maintain, prolong service life.

Description

Technical Field

[0001] This utility model relates to the field of wind power operation and maintenance technology, specifically to a protective device for offshore wind power operation and maintenance. Background Technology

[0002] With the booming development of the offshore wind power industry, the operation and maintenance of offshore wind turbines has become increasingly important. The complex and harsh marine environment, with strong winds and waves, presents numerous challenges to wind power operation and maintenance. Ensuring safety is paramount during the transfer of maintenance personnel from maintenance vessels to the offshore wind turbines.

[0003] Currently, common connection channel structures on the market have significant shortcomings when facing different operating conditions. During the normal operation of wind turbines, continuous strong winds acting on the connection channel generate substantial wind loads. This not only leads to fatigue damage to the channel structure, affecting its service life, but may also adversely affect the stability of the wind turbine itself due to severe vibrations, such as increasing the additional bending moment of the tower. Furthermore, during maintenance operations, the lack of effective wind protection measures makes maintenance personnel highly susceptible to interference from strong winds when passing through the channel, posing a risk of being blown off the structure. Strong winds also hinder maintenance personnel's operations, reduce work efficiency, and seriously threaten their personal safety.

[0004] Therefore, there is an urgent practical need to develop an offshore wind power operation and maintenance protection device that can flexibly adjust its wind resistance performance according to operating conditions. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides an offshore wind power operation and maintenance protection device to solve the problems mentioned in the background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an offshore wind power operation and maintenance protection device, including a connecting mechanism, a plurality of connecting blocks are fixedly arranged at the rear end of the connecting mechanism, the connecting mechanism is connected to the offshore wind power equipment through the plurality of connecting blocks, the front end of the connecting mechanism is connected to the operation and maintenance vessel, and adjustable protection mechanisms are fixedly arranged on both sides of the front end of the connecting mechanism.

[0007] The adjustable protective mechanism includes a protective frame. Connecting shafts are rotatably mounted at multiple openings inside the protective frame. Two vertically aligned connecting shafts are fixedly connected to each other. Adjustable rotating plates are fixedly mounted at the front ends of each connecting shaft. First fixing posts are fixedly mounted on one side of the three upper adjustable rotating plates. A second fixing post is fixedly mounted at the rear end of the protective frame near the first fixing post. A carabiner is snapped into the interior of the second fixing post. A limiting wire is installed inside the carabiner, and the limiting wire passes through the interior of the multiple first fixing posts.

[0008] Furthermore, a limiting turntable is rotatably provided at one front end of the protective frame, and the other end of the limiting steel wire is wound inside the limiting turntable.

[0009] Furthermore, a rotating frame is fixedly installed on one side of the limiting turntable, and a retractable rotating handle is rotatably installed at the lower end of the rotating frame. A limiting hole is opened through the protective frame near the position of the retractable rotating handle, and the retractable rotating handle is inserted into the interior of the limiting hole after being extended.

[0010] Furthermore, the connecting mechanism includes a vertical support frame, and side guardrails are fixedly installed on the upper end of the vertical support frame near the front ends on both sides. The two adjustable protective mechanisms are respectively welded and installed between the two side guardrails.

[0011] Furthermore, multiple maintenance steps are fixedly installed at the upper end of the vertical support frame near the front side, and an upper connecting platform is fixedly installed at the upper end of the vertical support frame near the rear side.

[0012] Furthermore, multiple reinforcing frames are fixedly installed inside the vertical support frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This offshore wind power operation and maintenance protection device, through the adjustable protective mechanism to activate the windproof effect during the operation and maintenance phase, and through the cooperation of the protective frame and the adjustable rotating plate, effectively blocks strong winds from attacking operation and maintenance personnel, reduces the risk of operation and maintenance personnel being blown off by the wind when passing through the connecting mechanism, provides reliable safety protection for operation and maintenance personnel, and strongly ensures the safe conduct of operation and maintenance operations.

[0015] 2. This offshore wind power operation and maintenance protection device cancels the wind protection effect when the wind power equipment is operating normally. The adjustable plate limit is canceled, allowing the wind to pass through more smoothly. This greatly reduces the wind force on the device, reduces the impact of wind load on the device structure, effectively avoids fatigue damage to the structure caused by long-term exposure to large wind loads, extends the service life of the device, and improves the stability of the device in non-operation and maintenance state. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the adjustable protective mechanism of this utility model;

[0019] Figure 4 This utility model Figure 2 Enlarged view of point A;

[0020] Figure 5 This utility model Figure 3 Enlarged diagram of point B.

[0021] In the diagram: 1. Adjustable protective mechanism; 2. Connecting mechanism; 3. Connecting block; 101. Protective frame; 102. Adjustable rotating plate; 103. First fixed column; 104. Limiting steel wire; 105. Limiting turntable; 106. Connecting shaft; 107. Rotating frame; 108. Limiting hole; 109. Telescopic rotating handle; 110. Second fixed column; 111. Carabiner; 201. Vertical support frame; 202. Upper connecting platform; 203. Maintenance ladder; 204. Side guardrail; 205. Reinforcing frame. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please refer to the following: Figures 1-5 This utility model provides a technical solution: an offshore wind power operation and maintenance protection device, including a connecting mechanism 2. Multiple connecting blocks 3 are fixedly installed at the rear end of the connecting mechanism 2. The connecting blocks 3 are made of high-strength alloy steel and have a size of 150mm×100mm×80mm. They are connected to the tower flange of the offshore wind power equipment by M20 high-strength bolts. The tensile bearing capacity of each connecting block 3 is not less than 200kN. The connecting mechanism 2 is connected to the offshore wind power equipment through multiple connecting blocks 3. The front end of the connecting mechanism 2 is connected to the operation and maintenance vessel. Adjustable protection mechanisms 1 are fixedly installed on both sides of the front end of the connecting mechanism 2.

[0024] Specifically, connecting block 3 is made of high-strength alloy steel and connected by high-strength bolts, ensuring a stable connection between connecting mechanism 2 and offshore wind power equipment, and can withstand longitudinal and lateral loads generated during operation and maintenance. Adjustable protective mechanisms 1 are set on both sides, forming windproof barriers from both sides of the channel, providing comprehensive protection for the safety of operation and maintenance personnel. The high-strength material and reasonable size design of connecting block 3 ensure the reliability and safety of the connection, and the dual-sided setting of adjustable protective mechanisms 1 expands the wind protection range.

[0025] The adjustable protective mechanism 1 includes a protective frame 101, which is made of corrosion-resistant aluminum alloy with a cross-sectional dimension of 80mm × 60mm and a wall thickness of 5mm. Multiple openings inside the protective frame 101 are rotatably equipped with connecting shafts 106, which are made of 45# steel with a diameter of 20mm and a length of 100mm. Two vertically aligned connecting shafts 106 are fixedly connected to each other by welding, with a welding strength not lower than that of the base material. Adjustable rotating plates 102 are fixedly installed at the front ends of each connecting shaft 106. The adjustable rotating plates 102 are made of glass fiber reinforced plastic with a thickness of 8mm and dimensions of 500mm × 300mm. Multiple adjustable rotating plates... The plate 102 has three first fixing posts 103 fixedly installed on its upper side. The first fixing posts 103 have a diameter of 15mm and a height of 30mm. The protective frame 101 has a second fixing post 110 fixedly installed at the rear end of the side near the first fixing posts 103. The second fixing post 110 has a carabiner 111 snapped into it. The carabiner 111 is made of stainless steel and has a load-bearing capacity of not less than 50kN. The carabiner 111 has a limiting wire 104 installed inside it. The limiting wire 104 is made of 304 stainless steel, has a diameter of 5mm, and a breaking strength of not less than 100kN. The limiting wire 104 passes through the interior of the multiple first fixing posts 103.

[0026] Specifically, the corrosion-resistant aluminum alloy material of the protective frame 101 can adapt to the high salt spray environment at sea. The material and size of the connecting shaft 106 ensure the flexible rotation of the adjustable rotating plate 102. The material of the adjustable rotating plate 102 is lightweight and high-strength, facilitating rotation and effectively preventing wind damage. The high strength and corrosion resistance of the limiting steel wire 104 can stably pull the adjustable rotating plate 102, and the carabiner 111 facilitates the replacement of the limiting steel wire 104. The reasonable selection of materials and sizes for each component ensures that the adjustable protective mechanism 1 can effectively prevent wind damage, adapt to harsh marine environments, and facilitate maintenance and replacement, thus extending the service life of the device.

[0027] A limiting turntable 105 is rotatably installed on one front side of the protective frame 101. The limiting turntable 105 has a diameter of 120mm and a thickness of 20mm and is made of ductile iron. The other end of the limiting steel wire 104 is wound inside the limiting turntable 105, with no less than 3 turns to ensure a stable connection. A rotating frame 107 is fixedly installed on one side of the limiting turntable 105. The rotating frame 107 has a length of 200mm, is made of seamless steel pipe, and has a diameter of 30mm. A retractable rotating handle 109 is rotatably installed at the lower end of the rotating frame 107. The retractable rotating handle 109 is made of ABS engineering plastic and its length can be adjusted within the range of 300-500mm. A limiting hole 108 is opened through the protective frame 101 near the position of the retractable rotating handle 109. The limiting hole 108 has a diameter of 25mm and a depth of 30mm. When the retractable rotating handle 109 is extended, it is snapped into the interior of the limiting hole 108.

[0028] Specifically, the material and dimensions of the limiting turntable 105 ensure its stability when winding the limiting steel wire 104. The design of the rotating frame 107 and the retractable rotating handle 109 facilitates the operator's application of force, and the retractable function adapts to the usage needs of different operators. The cooperation between the limiting hole 108 and the retractable rotating handle 109 reliably fixes the limiting turntable 105, preventing it from rotating in a windproof state. Operation is convenient and labor-saving; the cooperation between the retractable rotating handle 109 and the limiting hole 108 makes the fixation in a windproof state more reliable, improving the operational safety of the device.

[0029] The connecting mechanism 2 includes a vertical support frame 201, which is made of Q355B low-alloy high-strength structural steel with a cross-section of 200mm×200mm square steel pipe and a wall thickness of 10mm. Side guardrails 204 are fixedly installed on both sides of the upper end of the vertical support frame 201 near the front. The side guardrails 204 are 1200mm high, with a horizontal bar spacing of 300mm, and are made of 50mm diameter round steel pipe. Two adjustable protective mechanisms 1 are welded between the two side guardrails 204, with a welding height of not less than 8mm. Multiple [unclear - possibly referring to a specific type of protective mechanism] are fixedly installed on the upper end of the vertical support frame 201 near the front. Maintenance staircase 203 is 600mm wide, with a step height of 200mm and a step width of 300mm. It is made of patterned steel plate with a thickness of 6mm. An upper connecting platform 202 is fixedly installed at the upper end of the vertical support frame 201 near the rear side. The upper connecting platform 202 is 2000mm×1500mm in size and is made of patterned steel plate with a thickness of 8mm. The edge is equipped with a guardrail with a height of 1100mm. Multiple reinforcing frames 205 are fixedly installed inside the vertical support frame 201. The reinforcing frames 205 are made of Q235 steel and are arranged in a cross structure, and are welded to the vertical support frame 201.

[0030] Specifically, the material and dimensions of the vertical support frame 201 ensure the overall strength and stability of the connecting mechanism 2, enabling it to withstand the weight of maintenance personnel and equipment. The height and spacing of the side guardrails 204 comply with safety regulations, providing lateral protection for personnel. The dimensions and material of the maintenance ladder 203 ensure safe passage for personnel, while the checkered steel plate provides anti-slip properties. The upper connecting platform 202 provides space for personnel to operate and transition, and the cross-shaped structure of the reinforcing frame 205 further enhances the deformation resistance of the vertical support frame 201. The connecting mechanism 2 has high overall structural strength and good stability, providing safe passage and operating space for maintenance personnel. The reinforcing frame 205 improves the device's resistance to wind loads and deformation, adapting to complex marine environmental conditions.

[0031] Working Principle: This offshore wind power operation and maintenance protection device mainly consists of a connecting mechanism 2 and adjustable protection mechanisms 1 located on both sides of its front end. The rear end of the connecting mechanism 2 is securely connected to the offshore wind power equipment via multiple connecting blocks 3, while the front end is used to connect to the maintenance vessel. When maintenance personnel need to move to the offshore wind power equipment using this device, they first bring the maintenance vessel close to the connecting mechanism 2. At this time, the adjustable protection mechanism 1 begins to function, rotating the retractable rotary handle 109 and the rotating frame 107 to drive the limiting turntable 105 to rotate. The rotation of the limiting turntable 105 causes the limiting steel wire 104 to wind and contract. Since the limiting steel wire 104 passes through multiple first fixed posts 103, when the limiting steel wire 104 is taut, the retractable rotary handle 109 is rotated horizontally to insert it into the limiting hole 108. At this time, the limiting turntable 105 cannot rotate, and the adjustable rotating plate 102 is thus restricted inside the protective frame 101. In this state, the wind is blocked by the adjustable protective mechanism 1, providing a safe passage environment for maintenance personnel. They can safely pass through the maintenance ladder 203 in the connecting mechanism 2. After maintenance is completed, the limit handle is pulled out from the limit hole 108 and rotated in the opposite direction, releasing the limit wire 104 and allowing for a longer length, thus canceling the limit on the adjustable rotating plate 102. At this point, when the wind blows on the device again, the adjustable rotating plate 102 will not significantly obstruct the wind, greatly reducing the wind force on the device and improving its stability. After multiple maintenance operations, the limit wire 104 can be replaced by unfastening the carabiner 111 to prevent the wire's limiting effect from decreasing due to prolonged seawater corrosion.

[0032] The selection of various devices varies depending on the specific circumstances, and should be based on the actual needs and various parameters, taking into account the function and desired effect of the equipment.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protection device for offshore wind power operation and maintenance, comprising a connecting mechanism (2), characterized in that: The connecting mechanism (2) has multiple connecting blocks (3) fixedly installed at its rear end. The connecting mechanism (2) is connected to the offshore wind power equipment through the multiple connecting blocks (3). The connecting mechanism (2) is connected to the maintenance vessel at its front end. Adjustable protective mechanisms (1) are fixedly installed on both sides of the front end of the connecting mechanism (2). The adjustable protective mechanism (1) includes a protective frame (101). A connecting shaft (106) is rotatably provided at multiple opening positions inside the protective frame (101). Two of the multiple connecting shafts (106) are fixedly connected to each other in the vertical direction. An adjustable rotating plate (102) is fixedly provided at the front end of each of the multiple connecting shafts (106). A first fixing post (103) is fixedly provided on one side of the three upper adjustable rotating plates (102). A second fixing post (110) is fixedly provided at the rear end of the protective frame (101) near the first fixing post (103). A carabiner (111) is snapped into the second fixing post (110). A limiting wire (104) is provided inside the carabiner (111). The limiting wire (104) passes through the interior of the multiple first fixing posts (103).

2. The offshore wind power operation and maintenance protection device according to claim 1, characterized in that: The protective frame (101) has a limiting turntable (105) rotatably mounted on one front end, and the other end of the limiting wire (104) is wound around the inside of the limiting turntable (105).

3. The offshore wind power operation and maintenance protection device according to claim 2, characterized in that: A rotating frame (107) is fixedly installed on one side of the limiting turntable (105). A retractable rotating handle (109) is rotatably installed at the lower end of the rotating frame (107). A limiting hole (108) is opened through the protective frame (101) near the position of the retractable rotating handle (109). After the retractable rotating handle (109) is extended, it is engaged with the inside of the limiting hole (108).

4. The offshore wind power operation and maintenance protection device according to claim 1, characterized in that: The connecting mechanism (2) includes a vertical support frame (201), and side guardrails (204) are fixedly installed at the upper end of the vertical support frame (201) near the front end on both sides. The two adjustable protective mechanisms (1) are respectively welded between the two side guardrails (204).

5. The offshore wind power operation and maintenance protection device according to claim 4, characterized in that: Multiple maintenance steps (203) are fixedly installed at the upper end of the vertical support frame (201) near the front side, and an upper connecting platform (202) is fixedly installed at the upper end of the vertical support frame (201) near the rear side.

6. The offshore wind power operation and maintenance protection device according to claim 4, characterized in that: The vertical support frame (201) is internally fixed with multiple reinforcing frames (205).

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