Automatic fire extinguishing system for offshore wind turbines

Abstract

To provide an automatic fire extinguishing device for an offshore wind turbine generator in which a fire extinguishing cabinet is stably fixed. [Solution] An automatic fire extinguishing system for an offshore wind turbine generator comprises a support pillar, a generator assembly mounted on the top of which a slide groove is formed on the side of the support pillar, a slide sheet 4 is connected to the inside of the slide groove for limited sliding, a base plate 5 is fixedly connected to the side of the slide sheet, and an automatic fire extinguishing cabinet is mounted on the top of the base plate. A worm 8 is movably inserted into the side of the support pillar, a one-way threaded rod 9 is rotatably connected inside the slide groove, and a worm gear 10 is fitted to the bottom of the outer surface of the one-way threaded rod. An extension plate is fixedly connected to the side of the support pillar, a semicircular rack is fixedly connected to the top of the extension plate, and a two-way threaded rod is movably mounted inside the base plate.

Description

[Technical Field]

[0001] The present invention relates to the field of firefighting equipment technology, and more particularly to an automatic fire extinguishing device for offshore wind turbines. [Background technology]

[0002] Offshore wind turbines are devices that convert wind energy into electrical energy. They are the core components of offshore wind farms and are used in shallow waters. Generally, the base of the turbine is fixed to the seabed by pile driving, and an automatic fire extinguishing system must be installed to ensure the safety of the turbine.

[0003] Because offshore wind turbines are located far from land, the fire extinguishing system must be inspected regularly to ensure its normal operation. Since inspections require workers to climb to the top of the masts, which is dangerous and reduces the efficiency of inspections by workers in high-altitude environments, automatic fire extinguishing systems for offshore wind turbines have been proposed. Summary of the Invention [Problem to be solved by the invention]

[0004] In response to the deficiencies of the prior art, the present invention provides an automatic fire extinguishing device for offshore wind turbines to solve the technical problems that inspections require workers to climb to the top of the support tower, which is dangerous and reduces the efficiency of inspections by workers in high-altitude environments. [Means for solving the problem]

[0005] To achieve the above object, the present invention provides a technical solution for an automatic fire extinguishing device for an offshore wind turbine equipped with a support pillar, in which a generator assembly is installed at the top of the support pillar, a sliding groove is installed on the side of the support pillar, a sliding sheet is connected to the inside of the sliding groove so as to be able to slide within it, a base plate is fixedly connected to the side of the sliding sheet, an automatic fire extinguishing cabinet is installed on the top of the base plate, a worm is movably inserted on the side of the support pillar, a one-way threaded rod is rotatably connected to the inside of the sliding groove, an extension plate is fixedly connected to the side of the support pillar, a semicircular rack is fixedly connected to the top of the extension plate, a two-way threaded rod is movably installed inside the base plate, a gear is fixedly fitted to the middle of the two-way threaded rod, the sliding sheet is screwed onto the outer surface of the one-way threaded rod, and a worm gear is fixedly fitted to the lower part of the outer surface of the one-way threaded rod, and the worm gear is meshed with the worm.

[0006] Preferably, the sliding seat is provided with a ball slidably connected to the inner cavity of the sliding groove, which reduces the movement resistance between the sliding seat and the sliding groove by rolling friction instead of sliding friction, and the multi-point contact design of the ball evenly distributes the vertical load, avoiding stress concentration at one point and extending the structural life of the sliding groove.

[0007] Preferably, a turntable is fixedly connected to one end of the worm that passes through the support post. The turntable has a lever arm that is longer to reduce the operating torque requirements, and a non-slip surface design to prevent slippage during manual rotation. An electric drive interface may be additionally installed on the turntable to realize automatic lift control through motor drive, thereby satisfying the requirement for remote operation.

[0008] Preferably, the semicircular rack is movably inserted under the bottom plate and is meshed with a gear. The arc-shaped structure of the semicircular rack allows the gear to mesh continuously during the rotation of the bottom plate, thereby avoiding the risk of the gear coming off. The segmented tooth surface design limits the rotation angle range of the bottom plate and prevents excessive shaking of the automatic fire extinguishing cabinet.

[0009] Preferably, a clamp plate is threaded onto the outer surface of the two-way threaded rod, and a slot is provided on the side of the automatic fire extinguishing cabinet, with the clamp plate engaging the slot. When the two-way threaded rod rotates, the clamp plates on both sides move toward or away from each other synchronously via the reverse thread. The wedge-shaped ends of the clamp plates interact with the inclined surfaces of the slots to automatically correct any installation deviations, achieving accurate positioning and mechanical locking of the automatic fire extinguishing cabinet.

[0010] Preferably, a positioning ring is fixedly connected to the bottom of the side of the automatic fire extinguishing cabinet, a positioning rod is fixedly connected to the upper edge of the bottom plate, and the positioning ring is movably fitted to the outer surface of the positioning rod. The clearance between the positioning ring and the positioning rod can absorb the vibration energy of the generator and suppress horizontal shaking of the automatic fire extinguishing cabinet. The conical guide structure facilitates quick alignment and installation and, together with the snap-on structure, forms a double anti-fall mechanism. [Effects of the Invention]

[0011] Compared with the prior art, the present invention provides an automatic fire extinguishing device for offshore wind turbines, and has the following beneficial effects:

[0012] This automatic fire extinguishing system for offshore wind turbines uses a worm and worm gear to rotate the one-way threaded rod, causing the sliding plate to slide in one direction along the sliding groove, allowing the base plate and automatic fire extinguishing cabinet to rise and fall smoothly. This allows workers to adjust the equipment height on the ground and avoid the risks of working at height. As the base plate moves, the semicircular rack engages with the gear, causing the two-way threaded rod to rotate synchronously, automatically switching the locking state of the automatic fire extinguishing cabinet and simplifying the installation and removal steps during maintenance. The lifting mechanism and locking mechanism are mechanically linked, ensuring the fire extinguishing cabinet remains stable and fixed during lifting and lowering, preventing accidental falls and improving maintenance work efficiency and equipment operation safety. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 1 is a schematic diagram of the overall structure of an automatic fire extinguishing device for an offshore wind turbine generator according to the present invention. [Figure 2] FIG. 2 is a schematic diagram of the connection structure inside the support pillar of the automatic fire extinguishing device for an offshore wind turbine generator according to the present invention. [Figure 3] FIG. 3 is a schematic diagram of the connection structure between the bottom plate and the automatic fire extinguishing cabinet in the automatic fire extinguishing device for an offshore wind turbine generator according to the present invention. [Figure 4] FIG. 4 is a schematic diagram of the structure inside the bottom plate of the automatic fire extinguishing device for an offshore wind turbine generator according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0014] The technical solutions in the embodiments of the present invention will be described below clearly and completely with reference to the drawings of the embodiments of the present invention, but it is clear that the described embodiments are only some of the embodiments of the present invention and not all of the embodiments. All other embodiments that can be obtained by those skilled in the art based on the embodiments of the present invention without any creative ingenuity fall within the scope of protection of the present invention.

[0015] As shown in Figures 1 and 2, the present invention provides a technical solution for an automatic fire extinguishing device for an offshore wind turbine, which comprises a support 1, a generator assembly 2 provided at the top of the support 1, a sliding groove 3 provided on the side of the support 1, a sliding sheet 4 connected inside the sliding groove 3 so as to be able to slide with limited movement, a base plate 5 fixedly connected to the side of the sliding sheet 4, and an automatic fire extinguishing cabinet 6 provided on the top of the base plate 5, a worm 8 movably inserted on the side of the support 1, and a one-way screw rod 9 rotatably connected inside the sliding groove 3.

[0016] As shown in Figures 3 and 4, an extension plate 11 is fixedly connected to the side of the support 1, a semicircular rack 12 is fixedly connected to the top of the extension plate 11, a two-way screw rod 13 is movably installed inside the bottom plate 5, a gear 14 is fixedly fitted to the middle of the two-way screw rod 13, a sliding sheet 4 is screwed onto the outer surface of the one-way screw rod 9, a worm gear 10 is fixedly fitted to the lower part of the outer surface of the one-way screw rod 9, and the worm gear 10 is meshed with the worm 8.

[0017] Rotation of worm 8 rotates worm gear 10, which rotates one-way screw rod 9, causing slide sheet 4 to move vertically up and down along slide groove 3, thereby adjusting the height of automatic fire extinguishing cabinet 6. When semicircular rack 12 and gear 14 engage, two-way screw rod 13 rotates in accordance with changes in the rotation angle of bottom plate 5, and thread transmission moves clamp plate 15 laterally, completing the locking or unlocking of automatic fire extinguishing cabinet 6.

[0018] A ball is provided on the outside of the sliding sheet 4, slidably connected to the inner cavity of the sliding groove 3. The ball reduces the movement resistance between the sliding sheet 4 and the sliding groove 3 through rolling friction instead of sliding friction, and the multi-point contact design of the ball evenly distributes the vertical load, avoiding stress concentration at one point and extending the structural life of the sliding groove 3.

[0019] The turntable 7 is fixedly connected to one end of the worm 8 that passes through the support post 1. The turntable 7 has a longer lever arm to reduce the operating torque requirements, and its surface has an anti-slip pattern design to prevent slippage during manual rotation. An electric drive interface can be added to the turntable 7 to realize automatic lift control through motor driving, satisfying the requirement for remote operation.

[0020] The semicircular rack 12 is movably inserted into the bottom of the base plate 5, and is meshed with the gear 14. The arc-shaped structure of the semicircular rack 12 allows the gear 14 to mesh continuously during the rotation of the base plate 5, thereby avoiding the risk of the teeth coming off. The segmented tooth surface design limits the rotation angle range of the base plate 5 and prevents the automatic fire extinguishing cabinet 6 from shaking excessively.

[0021] A clamp plate 15 is threaded onto the outer surface of the two-way threaded rod 13, and a slot 16 is provided on the side of the automatic fire extinguishing cabinet 6, into which the clamp plate 15 is fitted. As the two-way threaded rod 13 rotates, the clamp plates 15 on both sides move toward or away from each other in sync via the reverse threads. The wedge-shaped ends of the clamp plates 15 work in conjunction with the inclined surfaces of the slots 16 to automatically correct any installation deviations, achieving accurate positioning and mechanical locking of the automatic fire extinguishing cabinet 6.

[0022] A positioning ring 17 is fixedly connected to the bottom of the side of the automatic fire extinguishing cabinet 6, and a positioning rod 18 is fixedly connected to the upper edge of the bottom plate 5, with the positioning ring 17 movably fitted onto the outer surface of the positioning rod 18. The clearance between the positioning ring 17 and the positioning rod 18 can absorb the vibration energy of the generator and suppress horizontal shaking of the automatic fire extinguishing cabinet 6, and its conical guide structure facilitates quick alignment and installation and, together with the snap-on structure, forms a double anti-fall mechanism.

[0023] In this invention, when the base plate 5 is lowered, the turntable 7 is rotated forward, which rotates the worm 8. The worm gear 10 then rotates the one-way threaded rod 9, causing the sliding sheet 4 to slide downward along the sliding groove 3. As the base plate is lowered, the semicircular rack 12 engages with the base plate 5, rotating the gear 14. The rotation of the gear 14 rotates the two-way threaded rod 13, which then slides the clamp plate 15 out of the slot 16, unlocking the automatic fire extinguishing cabinet 6. When the base plate 5 is raised, the turntable 7 is rotated backward, moving the base plate 5 away from the semicircular rack 12. This rotates the two-way threaded rod 13 in the opposite direction, causing the block to engage the slot 16, locking the automatic fire extinguishing cabinet 6. This achieves the effects of automatic locking and convenient installation and removal. The automatic fire extinguishing cabinet 6 can be raised and lowered, and inspection and replacement of the automatic fire extinguishing cabinet 6 can be performed without climbing the support 1, improving maintenance efficiency and reducing maintenance risks.

[0024] It should be noted that, as used herein, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another and do not necessarily require or imply that such an actual relationship or order exists between those entities or operations. Furthermore, the terms "comprise," "comprises," or any other variation thereof imply an inclusion that is not exclusive. Thus, a process, method, article, or facility that includes a set of elements includes not only those elements but also other elements not expressly listed or that are inherent in such process, method, article, or facility.

[0025] Although the embodiments of the present invention have been shown and described above, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments of the present invention without departing from the principles and spirit of the present invention, and that the scope of the present invention is limited by the appended claims and their equivalents. [Explanation of symbols]

[0026] 1 post 2. Generator Assembly 3 Slide groove 4 Slide Sheet 5 Bottom plate 6 Automatic Fire Extinguishing Cabinet 7 Turntable 8 Warm 9 One-way threaded rod 10 Worm Gear 11 Extension plate 12 Semicircular Rack 13 Two-way threaded rod 14 gears 15 Clamp plate 16 slots 17 Locating ring 18 Positioning rod

Claims

1. An automatic fire extinguishing device for an offshore wind turbine equipped with a support pillar, A generator assembly (2) is provided at the top of the support (1), A slide groove (3) is provided on the side of the support (1), A slide sheet (4) is connected to the inside of the slide groove (3) so as to be able to slide with limited movement. A bottom plate (5) is fixedly connected to the side of the slide sheet (4), An automatic fire extinguishing cabinet (6) is provided on the top of the bottom plate (5), A worm (8) is movably inserted into the side of the support (1), A one-way screw rod (9) is rotatably connected inside the slide groove (3); An extension plate (11) is fixedly connected to the side of the support (1), A semicircular rack (12) is fixedly connected to the upper part of the extension plate (11); A two-way screw rod (13) is movably provided inside the bottom plate (5); A gear (14) is fixedly fitted to the middle of the two-way screw rod (13), The slide seat (4) is screwed onto the outer surface of the one-way screw rod (9), A worm gear (10) is fixedly fitted to the lower part of the outer surface of the one-way threaded rod (9), The automatic fire extinguishing device for an offshore wind turbine generator is characterized in that the worm gear (10) is meshed and connected to a worm (8).

2. The automatic fire extinguishing device for an offshore wind turbine according to claim 1, An automatic fire extinguishing device for an offshore wind turbine generator, characterized in that a ball slidably connected to the inner cavity of the slide groove (3) is provided on the outside of the slide sheet (4).

3. The automatic fire extinguishing device for an offshore wind turbine according to claim 1, An automatic fire extinguishing device for an offshore wind turbine generator, characterized in that a rotating disk (7) is fixedly connected to one end of the worm (8) that penetrates the support column (1).

4. The automatic fire extinguishing device for an offshore wind turbine according to claim 1, The semicircular rack (12) is movably inserted into the lower part of the bottom plate (5), The automatic fire extinguishing device for an offshore wind turbine generator is characterized in that the semicircular rack (12) is meshed and connected to a gear (14).

5. The automatic fire extinguishing device for an offshore wind turbine according to claim 1, A clamp plate (15) is screwed onto the outer surface of the two-way screw rod (13), The automatic fire extinguishing cabinet (6) has a slot (16) on the side thereof; An automatic fire extinguishing device for an offshore wind turbine generator, characterized in that the clamp plate (15) is engaged inside a slot (16).

6. The automatic fire extinguishing device for an offshore wind turbine according to claim 1, A positioning ring (17) is fixedly connected to the bottom of the side of the automatic fire extinguishing cabinet (6); A positioning rod (18) is fixedly connected to the upper edge of the bottom plate (5); An automatic fire extinguishing device for an offshore wind turbine generator, characterized in that the positioning ring (17) is movably fitted to the outer surface of a positioning rod (18).

Images