Bidirectional flow channel floating fan gas-liquid linkage ballast balancing device

Abstract

The utility model discloses a floating fan gas-liquid linkage ballast balancing device with a bidirectional flow channel, which mainly comprises a gas-liquid linkage ballast cylinder and an annular mounting frame, and the gas-liquid linkage ballast cylinder comprises a central gas-liquid linkage ballast cylinder and an outer side gas-liquid linkage ballast cylinder; the gas-liquid linkage ballast cylinder is mainly composed of a cylinder, a plurality of sealing partition plates are arranged in the cylinder in the axial direction, the sealing partition plates divide a plurality of sealing cabins in the cylinder, a compression bin is formed between the bottommost sealing partition plate and the movable cover plate, and a compression air bag is installed in the compression bin. An electronic water inlet valve and an electronic drain valve are mounted on the inner wall of the sealed cabin; an air pipe is installed on the top face of the cylinder, and the output end of the air pump extends to each sealed cabin and the compression cabin through an air supply pipe. According to the device, gas and liquid can be dynamically adjusted through the sealed cabin, so that the position of the generator set on the sea surface is dynamically adjusted through mutual cooperation of the outer side gas-liquid linkage ballast cylinder and the center gas-liquid linkage ballast cylinder, impact of wind power and sea waves is effectively reduced, and the resistance of the device to the sea waves is remarkably improved.

Description

Technical Field

[0001] This utility model belongs to the field of gas-liquid linkage ballast balance technology, and particularly relates to a two-way flow channel floating fan gas-liquid linkage ballast balance device. Background Technology

[0002] Offshore wind farms possess abundant wind resources and vast development areas. Therefore, as high-quality onshore wind farm resources become increasingly exhausted, major wind turbine manufacturers worldwide are shifting their development focus to offshore. Compared to onshore wind farm construction, offshore wind farms face multiple loads such as wind, waves, and currents, resulting in more complex environmental conditions, greater technological development difficulties, and many new challenges. For deep-sea wind turbines, floating turbines are typically used to reduce installation costs.

[0003] In existing technologies, floating wind turbines are susceptible to the coupling effect of wind, waves, and currents in deep-sea environments, leading to frequent fatigue damage to the foundation structure. Industry statistics show that a single wind turbine experiences downtime exceeding 300 hours annually due to wave impact. Traditional ballast systems employ unidirectional injection and drainage regulation, resulting in a response lag exceeding 2 minutes, making it difficult to adapt to real-time wave frequency changes (0.5-2Hz). Traditional ballast systems often fail to effectively cope with complex sea conditions, leading to insufficient turbine stability. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a floating wind turbine gas-liquid linkage ballast balancing device with reasonable structure and good effect of bidirectional flow channel. This device can realize dynamic pressure balance of ballast tank, thereby improving the floating wind turbine's resistance to sea waves, reducing its impact from wind and sea wave impact, and significantly improving its survivability under extreme sea conditions.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] The bidirectional flow channel floating fan gas-liquid linkage ballast balance device mainly consists of a gas-liquid linkage ballast cylinder and an annular mounting frame. The gas-liquid linkage ballast cylinder includes a central gas-liquid linkage ballast cylinder and outer gas-liquid linkage ballast cylinders. The outer gas-liquid linkage ballast cylinders are evenly distributed along the circumference of the annular mounting frame, while the central gas-liquid linkage ballast cylinder is located at the center of the annular mounting frame. The gas-liquid linkage ballast cylinder is mainly composed of a cylindrical tube, with a sealed top and a movable cover plate on the bottom. Multiple sealing baffles are arranged axially inside, isolating multiple sealed chambers within the cylindrical tube. A compression chamber is formed between the sealing partition and the movable cover plate, and a compression airbag is installed inside the compression chamber. An electronic water inlet valve and an electronic drain valve are installed on the inner wall of the sealed chamber, and a drain pump is installed inside the sealed chamber, which is connected to the electronic drain valve. An air pipe is installed on the top surface of the cylindrical tube, with a waterproof cover plate at the upper end of the air pipe and an air pump installed at the lower end of the air pipe. The output end of the air pump extends to each sealed chamber and the compression chamber through an air supply pipe. An electronic air supply valve is arranged in each sealed chamber, and an emergency electronic valve is arranged in the compression chamber and connected to the compression airbag.

[0007] The outer side wall of the outer gas-hydraulic linkage ballast cylinder is equipped with an installation block, a traction chain is installed on the outer side wall of the installation block, and a resistance spring is arranged inside the installation block; the fixed end of the resistance spring is fixed to the bottom surface inside the installation block, the movable end of the resistance spring is connected to the head end of the traction chain, and an anchor stone is arranged at the end of the traction chain.

[0008] Four outer gas-hydraulic ballast cylinders are evenly distributed on the lower surface of the circumference of the annular mounting frame, and a central gas-hydraulic ballast cylinder is installed at the center of the annular mounting frame.

[0009] The central gas-liquid linkage ballast cylinder is installed at the center of the annular mounting frame via a reinforced bracket.

[0010] The electronic water inlet valve and electronic water outlet valve are located at the top and bottom of the sealed chamber.

[0011] Five sealing baffles are evenly arranged from top to bottom inside the cylindrical tube, and the sealing baffles isolate five sealed chambers inside the cylindrical tube.

[0012] To address the problems existing in current offshore floating wind turbine applications, the inventors designed a bidirectional flow channel floating wind turbine gas-liquid linkage ballast balancing device, mainly composed of a gas-liquid linkage ballast cylinder and an annular mounting frame. The gas-liquid linkage ballast cylinder includes a central gas-liquid linkage ballast cylinder and outer gas-liquid linkage ballast cylinders; the outer gas-liquid linkage ballast cylinders are evenly distributed along the circumference of the annular mounting frame, and the central gas-liquid linkage ballast cylinder is located at the center of the annular mounting frame; the gas-liquid linkage ballast cylinder is mainly composed of a cylindrical tube, with a sealed top surface and a movable cover plate on the bottom surface, and multiple sealing baffles arranged axially inside. The cylindrical structure is divided into multiple sealed chambers. A compression chamber is formed between the lowest sealed partition and the movable cover, and a compression airbag is installed within the compression chamber. Electronic water inlet valves and electronic drain valves are installed on the inner walls of the sealed chambers, and a drain pump is installed inside each chamber, connected to the electronic drain valves. An air pipe is installed on the top surface of the cylindrical structure, with a waterproof cover at the upper end and an air pump at the lower end. The output of the air pump extends to each sealed chamber and the compression chamber via an air supply pipe. An electronic air supply valve is installed in each sealed chamber, and an emergency electronic valve is installed in the compression chamber, connecting to the compression airbag. This device dynamically adjusts the gas and liquid levels within the multiple sealed chambers of the gas-hydraulic linkage ballast cylinder. This allows for dynamic adjustment of the generator set's position on the sea surface using the coordinated operation of the outer and central gas-hydraulic linkage ballast cylinders, effectively reducing the impact of wind and waves and significantly improving the device's resistance to sea waves. In the event of an accident, the deployed compressed air bladder provides temporary buoyancy, preventing the device from failing to rise if the outer pneumatic-hydraulic ballast cylinder is damaged. The air supply pipe, electronic water inlet valve, and electronic drain valve serve as bidirectional flow channels for air and water within the pneumatic-hydraulic ballast cylinder, enhancing the overall dynamic response capability of both the outer and central pneumatic-hydraulic ballast cylinders. Furthermore, mounting blocks and traction chains can be installed on the outer wall of the outer pneumatic-hydraulic ballast cylinder. Internal resistance springs mitigate the instantaneous strain on the device from waves, thus reducing the pressure exerted by the waves. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the bidirectional flow channel floating fan gas-liquid linkage ballast balance device of this utility model.

[0014] Figure 2 This is a bottom view of the structure of the bidirectional flow channel floating fan gas-liquid linkage ballast balance device of this utility model.

[0015] Figure 3 This is a schematic diagram of the outer gas-liquid linkage ballast cylinder part in the bidirectional flow channel floating fan gas-liquid linkage ballast balance device of this utility model.

[0016] Figure 4 This is a schematic diagram of the submerged state changes of the floating fan gas-liquid linkage ballast balance device with bidirectional flow channel of this utility model.

[0017] In the diagram: 100, Generating fan; 101, Circular mounting frame; 102, Reinforcing bracket; 200, Outer pneumatic-hydraulic ballast cylinder; 201, Central pneumatic-hydraulic ballast cylinder; 202, Sealing partition; 203, Sealed chamber; 204, Drain pump; 205, Electronic water inlet valve; 206, Electronic drain valve; 207, Air pump; 208, Air supply pipe; 209, Electronic air supply valve; 300, Mounting block; 301, Traction chain; 302, Resistance spring; 400, Air pipe; 401, Waterproof cover; 500, Compression chamber; 501, Compression airbag; 502, Movable cover; 503, Emergency electronic valve. Detailed Implementation

[0018] I. Basic Structure

[0019] like Figures 1 to 4 As shown, the bidirectional flow channel floating fan gas-liquid linkage ballast balance device of this utility model mainly consists of a gas-liquid linkage ballast cylinder and an annular mounting frame 101. Among them,

[0020] The gas-hydraulic linkage ballast cylinder includes a central gas-hydraulic linkage ballast cylinder 201 and outer gas-hydraulic linkage ballast cylinders 200; four outer gas-hydraulic linkage ballast cylinders are evenly distributed on the lower surface of the circumference of the annular mounting frame, and a central gas-hydraulic linkage ballast cylinder is installed at the center of the annular mounting frame through a reinforcing bracket 102.

[0021] The gas-hydraulic linkage ballast cylinder is mainly composed of a cylindrical tube. The top surface of the cylindrical tube is sealed, and the bottom surface is equipped with a movable cover plate 502. Five sealing partitions 202 are evenly arranged from top to bottom along the axial direction inside the cylindrical tube. The sealing partitions isolate five sealed chambers 203 inside the cylindrical tube. The lowermost sealing partition and the movable cover plate form a compression chamber 500. A compression airbag 501 is installed in the compression chamber. An electronic water inlet valve 205 and an electronic drain valve 206 are respectively installed on the upper and lower parts of the inner wall of the sealed chamber. A drain pump 204 is installed in the sealed chamber. The drain pump is connected to the electronic drain valve and is used to drain the water in the sealed chamber.

[0022] An air pipe 400 is installed on the top surface of the cylindrical tube. A waterproof cover plate 401 is installed at the upper end of the air pipe, and an air pump 207 is installed at the lower end of the air pipe. The output end of the air pump extends to each sealed chamber and compression chamber through an air supply pipe 208. An air supply electronic valve 209 is arranged in each sealed chamber. When the air pump is started, air is injected into each sealed chamber through the air supply electronic valve. An emergency electronic valve 503 is arranged in the compression chamber and connected to a compression airbag, so that the compression airbag is deployed at the bottom of the outer pneumatic-hydraulic linkage ballast cylinder to provide buoyancy support for the device. An installation block 300 is provided on the outer wall of the outer pneumatic-hydraulic linkage ballast cylinder. A traction chain 301 is installed on the outer wall of the installation block, and a resistance spring 302 is arranged inside the installation block. The fixed end of the resistance spring is fixed to the bottom surface inside the installation block, and the movable end of the resistance spring is connected to the head end of the traction chain. An anchor stone is arranged at the end of the traction chain.

[0023] II. Working Principle

[0024] The bottom of the generator fan 100 is mounted on the central gas-hydraulic ballast cylinder. During operation, the height of the generator fan is adjusted to mitigate the impact of waves and wind on the device. Mounting blocks and traction chains can fix the generator fan's position, preventing movement. Simultaneously, resistance springs absorb some of the generator fan's sway caused by wave impacts, providing cushioning. In stable weather conditions, the air pump can be activated to inject air into each sealed chamber via the air supply electronic valve. Simultaneously, the drain pump and electronic water inlet valve drain moisture from the sealed chambers. Drainage within the sealed chambers must proceed from top to bottom, while water filling must proceed from bottom to top, ensuring the generator fan's center of gravity remains stable. The top-mounted sealed chamber provides redundant capacity to cope with the impact of waves of varying sizes. The air supply pipe, electronic water inlet valve, and electronic drain valve serve as bidirectional air and moisture flow channels within the outer gas-hydraulic ballast cylinder, enhancing the overall dynamic response capability of both the outer and central gas-hydraulic ballast cylinders. Air pipes and waterproof covers assist the air pump in providing ventilation when the device is submerged in water.

Claims

1. A floating windmill gas-liquid linkage ballast balancing device of a two-way flow channel, characterized in that It mainly consists of a gas-hydraulic ballast cylinder and an annular mounting frame. The gas-hydraulic ballast cylinder includes a central gas-hydraulic ballast cylinder and outer gas-hydraulic ballast cylinders. The outer gas-hydraulic ballast cylinders are evenly distributed along the circumference of the annular mounting frame, and the central gas-hydraulic ballast cylinder is located at the center of the annular mounting frame. The gas-hydraulic ballast cylinder is mainly composed of a cylindrical tube, with a sealed top and a movable cover plate at the bottom. Multiple sealing partitions are arranged axially inside, dividing the interior of the cylindrical tube into multiple sealed chambers. The bottommost sealing partition is connected to the movable cover plate. A compression chamber is formed between the movable cover plates, and a compression airbag is installed inside the compression chamber; an electronic water inlet valve and an electronic drain valve are installed on the inner wall of the sealed chamber, and a drain pump is installed inside the sealed chamber, which is connected to the electronic drain valve; an air pipe is installed on the top surface of the cylindrical tube, with a waterproof cover plate at the upper end of the air pipe and an air pump installed at the lower end of the air pipe. The output end of the air pump extends to each sealed chamber and the compression chamber through an air supply pipe. An air supply electronic valve is arranged in each sealed chamber, and an emergency electronic valve is arranged in the compression chamber and connected to the compression airbag.

2. The floating wind turbine hydro-pneumatic ballast balancing device according to claim 1, characterized in that: The outer side wall of the outer gas-liquid linkage ballast cylinder is provided with an installation block, a traction chain is installed on the outer side wall of the installation block, and a resistance spring is arranged inside the installation block; the fixed end of the resistance spring is fixed to the bottom surface inside the installation block, the movable end of the resistance spring is connected to the head end of the traction chain, and an anchor stone is arranged at the end of the traction chain.

3. The floating wind turbine hydro-pneumatic ballast balancing device according to claim 2, characterized in that: Four outer gas-hydraulic ballast cylinders are evenly distributed on the lower surface of the circumference of the annular mounting frame, and a central gas-hydraulic ballast cylinder is installed at the center of the annular mounting frame.

4. The floating wind turbine hydro-pneumatic ballast balancing device according to claim 3, characterized in that: The central gas-liquid linkage ballast cylinder is installed at the center of the annular mounting frame via a reinforced bracket.

5. The floating fan gas-liquid linkage ballast balance device according to claim 4, characterized in that: The electronic water inlet valve and electronic water outlet valve are located at the top and bottom of the sealed chamber, respectively.

6. The floating fan gas-liquid linkage ballast balance device according to claim 5, characterized in that: Five sealing partitions are evenly arranged from top to bottom inside the cylindrical tube, and the sealing partitions isolate five sealed chambers inside the cylindrical tube.

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