Modular semi-submersible floating foundation of offshore wind turbine generator

Abstract

The utility model provides a modularized semi-submersible floating foundation of an offshore wind turbine generator, which relates to the technical field of offshore wind turbine generators and comprises a triangular plate frame and a second shell. The supporting frame is welded and mounted on the upper surface of the triangular plate frame; the buffering mechanisms are arranged at the three ends of the triangular plate frame and used for buffering the triangular plate frame and the supporting frame; the floating barrel is mounted on the surface of the outer side of the buffer mechanism; the adjusting mechanism is connected with the floating barrel and used for adjusting the deepwater degree of the triangular plate frame and the supporting frame. The impact column in the buffer mechanism is slidably mounted in the impact shell, the spring sleeved on the outer side surface of the impact column is mounted in the impact shell, a secondary buffer effect can be achieved for the device, a negative pressure cavity formed by the piston and the inner cavity of the impact shell has a primary buffer effect, and the device can abut against large typhoon and ocean current. Therefore, the normal operation of the device is ensured.

Description

Technical Field

[0001] This utility model relates to the field of offshore wind power technology, specifically to a modular semi-submersible floating foundation for offshore wind turbines. Background Technology

[0002] Offshore wind turbines refer to wind turbine generators installed in the ocean or coastal areas. They utilize offshore wind resources to generate electricity. According to relevant statistics, there are currently more than 30 floating wind turbine concepts worldwide, which can be basically divided into the following types: semi-submersible floating foundation, single-column floating foundation, barge floating foundation, and hybrid concepts.

[0003] The aforementioned semi-submersible floating foundations often suffer from the following drawbacks: In the ocean, typhoons and ocean currents are unavoidable. Existing semi-submersible floating foundations have a rigid connection between the bottom and the seabed, which poses a risk of breakage under strong typhoons or currents, thus affecting the stability of the device. Therefore, a modular semi-submersible floating foundation for offshore wind turbines is needed to solve these problems. Utility Model Content

[0004] This invention provides a modular semi-submersible floating foundation for offshore wind turbines, which solves the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] An embodiment of this utility model provides a modular semi-submersible floating foundation for offshore wind turbines, comprising:

[0007] Triangular disc frame and housing 2;

[0008] A support frame, which is welded and mounted on the upper surface of the triangular disc frame;

[0009] A buffer mechanism is provided at three ends of the triangular disk frame to buffer the triangular disk frame and the support frame.

[0010] A float bucket, which is mounted on the outer surface of the buffer mechanism;

[0011] An adjustment mechanism, connected to the float bucket, is used to adjust the depth of the triangular disc frame and the support frame.

[0012] Furthermore, the buffer mechanism includes a housing, which is welded to the three end surfaces of the triangular disc frame. Float buckets are symmetrically installed on the outer surface of the housing. Rollers are rotatably installed on the inner surface of the housing. A punch shell is welded to the inner surface of the housing. A punch column is slidably installed in the inner cavity of the punch shell, and a spring is installed in the inner cavity of the punch shell.

[0013] The above technical solution can provide a buffering effect for the device.

[0014] Furthermore, a limiting plate and a piston are respectively installed at one end of the punch, the limiting plate and the inner cavity of the punch shell form a negative pressure cavity, a sliding shell is installed through the lower surface of the first shell, a sliding column is slidably installed in the inner cavity of the sliding shell, a steel belt is installed at the other end of the punch, passes through the first roller and is installed at one end of the sliding column, and a steel rope is installed at the other end of the sliding column.

[0015] The above technical solution can divide the force of the steel rope into two parts for buffering.

[0016] Furthermore, two rollers are rotatably mounted on the inner surface of the housing, and the two rollers are symmetrically arranged.

[0017] The above technical solution improves the sensitivity of the punch in sliding within the punch shell.

[0018] Furthermore, the spring is sleeved on the outer side of the punch, one end of the spring is welded to the upper surface of the limiting plate, and the other end is welded to the protruding surface of the inner cavity of the punch shell. Two steel strips are provided, and one end of each steel strip is installed on the sliding column.

[0019] The above technical solution can prevent the spring and the punch from detaching from the punch shell.

[0020] Furthermore, the adjustment mechanism includes a storage tray, and the interior of the second housing is provided with a first chamber and a second chamber. The storage tray is rotatably installed inside the first chamber of the second housing, and a motor is installed inside the second chamber of the second housing. The working end of the motor is located in the first chamber of the second housing and is fixedly installed with the storage tray.

[0021] The above technical solution can achieve the effect of adjustment of the device.

[0022] Furthermore, the surface of the storage tray is wound with steel rope, and a counterweight is installed on the lower surface of the second housing.

[0023] The counterweight can be used to fix the device in place using the above technical solution.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] This invention utilizes a buffer mechanism where a plunger is slidably mounted within a casing. A spring fitted onto the outer surface of the plunger and installed within the casing provides a secondary buffering effect. The negative pressure chamber formed by the piston and the inner cavity of the casing provides a primary buffering effect, capable of withstanding strong typhoons and ocean currents. This ensures the normal operation of the device.

[0026] This invention uses a motor in the adjustment mechanism to drive the storage disc to rotate, causing the steel rope to wind around, which can achieve the effect of adjusting the device. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the structure of the float bucket of this utility model;

[0029] Figure 3 This is a schematic cross-sectional view of shell one and shell two of this utility model;

[0030] Figure 4 This is a utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Triangular plate holder; 2. Support frame;

[0033] 3. Buffer mechanism; 301. Housing 1; 302. Roller 1; 303. Punch shell; 304. Punch column; 305. Limiting plate; 306. Piston; 307. Negative pressure chamber; 308. Spring; 309. Steel belt; 310. Sliding shell; 311. Sliding column; 312. Steel rope;

[0034] 4. Float bucket;

[0035] 5. Adjustment mechanism; 51. Housing II; 52. Storage tray; 53. Motor; 54. Counterweight. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0037] like Figures 1 to 4 As shown, an embodiment of this utility model provides a modular semi-submersible floating foundation for offshore wind turbines, comprising:

[0038] Triangular disc holder 1 and housing 2 51;

[0039] Support frame 2 is welded and installed on the upper surface of the triangular disc frame 1;

[0040] The buffer mechanism 3 is set at the three ends of the triangular plate frame 1 and is used to buffer the triangular plate frame 1 and the support frame 2.

[0041] Float bucket 4 is installed on the outer surface of the buffer mechanism 3;

[0042] Adjustment mechanism 5 is connected to float bucket 4 and is used to adjust the depth of the triangular plate frame 1 and support frame 2.

[0043] The float bucket 4 is installed on the buffer mechanism 3 to keep the triangular disc frame 1 stable in seawater, while the support frame 2 is used to fix the wind turbine module.

[0044] like Figure 4 As shown, the buffer mechanism 3 includes a housing 301, which is welded to the three end surfaces of the triangular disc frame 1. Float buckets 4 are symmetrically installed on the outer surface of the housing 301. Rollers 302 are rotatably installed on the inner surface of the housing 301. A punch shell 303 is welded to the inner surface of the housing 301. A punch column 304 is slidably installed in the inner cavity of the punch shell 303. A spring 308 is installed in the inner cavity of the punch shell 303.

[0045] The triangular plate frame 1 has a housing 301 installed at each of its three ends. The spring 308 is in an extended state and always holds the punch 304 towards the bottom of the punch housing 303.

[0046] like Figure 3 and Figure 4 As shown, a limiting plate 305 and a piston 306 are respectively installed at one end of the punch 304. The limiting plate 305 and the inner cavity of the punch shell 303 form a negative pressure cavity 307. A sliding shell 310 is installed through the lower surface of the shell 301. A sliding column 311 is slidably installed in the inner cavity of the sliding shell 310. A steel belt 309 is installed at the other end of the punch 304, passes through the roller 302 and is installed at one end of the sliding column 311. A steel rope 312 is installed at the other end of the sliding column 311.

[0047] The negative pressure chamber 307 formed by the limiting plate 305 and the punch shell 303 is used in conjunction with the piston 306 to give the punch 304 a certain resistance when sliding upward. The shell 301 has a fully enclosed sealing type, in which the sliding column 311 slides in the sliding shell 310, which can ensure that the steel belt 309 slides normally in the sliding column 311, so that the steel rope 312 can move, allowing the entire device to play a buffering role and preventing seawater from entering. Sealing gaskets are installed at both ends of the sliding shell 310.

[0048] like Figure 4 As shown, two rollers 302 are rotatably mounted on the inner surface of the housing 301, and the two rollers 302 are symmetrically arranged.

[0049] The two rollers 302 can simultaneously cause the two steel belts 309 to slide, thus acting as force distributors.

[0050] like Figure 4As shown, the spring 308 is sleeved on the outer side of the punch 304. One end of the spring 308 is welded to the upper surface of the limiting piece 305, and the other end is welded to the protruding surface of the inner cavity of the punch shell 303.

[0051] Spring 308 acts as a buffer.

[0052] like Figure 4 As shown, there are two steel strips 309, and one end of each steel strip 309 is mounted on the sliding column 311.

[0053] The steel strip 309 serves as a force component for the steel rope 312.

[0054] like Figure 3 As shown, the adjustment mechanism 5 includes a storage tray 52. ​​The housing 51 has a first chamber and a second chamber. The storage tray 52 is rotatably installed inside the first chamber of the housing 51. The motor 53 is installed inside the second chamber of the housing 51. The working end of the motor 53 is fixedly installed in the first chamber of the housing 51 with the storage tray 52.

[0055] Motor 53 drives the storage tray 52 to rotate.

[0056] like Figure 3 As shown, the surface of the storage tray 52 is wrapped with steel rope 312, and a counterweight 54 is installed on the lower surface of the housing 51.

[0057] Motor 53 drives the storage tray 52 to rotate, causing the steel rope 312 to wrap around the storage tray 52, which lowers the entire device, and the counterweight 54 sinks to the seabed to prevent the device from moving.

[0058] Working principle: First, the entire device floats on the sea. The counterweight 54 sinks to the seabed to fix the entire device and prevent it from drifting. Then, the motor 53 drives the storage tray 52 to rotate, causing the steel cable 312 to wind around the storage tray 52, adjusting the depth of the device floating on the sea. When encountering typhoons or strong ocean currents, the steel cable 312 will generate tension, pulling the sliding column 311. The sliding column 311 pulls two steel belts 309. The two steel belts 309 slide in two rollers 302, thereby pulling the impact column 304. The impact column 304 slides in the impact shell 303. The spring 308 and the negative pressure chamber 307 will give the impact column 304 a reverse force, pulling the impact column 304 back to its original position, thus playing a buffering role.

Claims

1. A modular semi-submersible floating foundation for offshore wind turbines, characterized in that, include: Triangular disc holder (1) and housing two (51); Support frame (2), which is welded to the upper surface of the triangular disc frame (1); The buffer mechanism (3) is set at the three ends of the triangular disk frame (1) and is used to buffer the triangular disk frame (1) and the support frame (2). A float bucket (4) is installed on the outer surface of the buffer mechanism (3); Adjustment mechanism (5), which is connected to float bucket (4), is used to adjust the depth of the triangular plate frame (1) and support frame (2).

2. The modular semi-submersible floating foundation for offshore wind turbines according to claim 1, characterized in that, The buffer mechanism (3) includes a housing (301), which is welded to the three end surfaces of the triangular disc frame (1). Float buckets (4) are symmetrically installed on the outer side of the housing (301). A roller (302) is rotatably installed on the top of the inner cavity of the housing (301). A punch shell (303) is welded to the middle of the inner cavity of the housing (301). A punch column (304) is slidably installed in the inner cavity of the punch shell (303). A spring (308) is installed in the inner cavity of the punch shell (303).

3. The modular semi-submersible floating foundation for offshore wind turbines according to claim 2, characterized in that, One end of the punch (304) is respectively equipped with a limiting plate (305) and a piston (306). The limiting plate (305) and the inner cavity of the punch shell (303) form a negative pressure cavity (307). A sliding shell (310) is installed through the lower surface of the first shell (301). A sliding column (311) is slidably installed in the inner cavity of the sliding shell (310). A steel strip (309) is installed at the other end of the punch (304) and passes through the first roller (302) and is installed at one end of the sliding column (311). A steel rope (312) is installed at the other end of the sliding column (311).

4. The modular semi-submersible floating foundation for offshore wind turbines according to claim 2, characterized in that, Two rollers (302) are rotatably mounted on the inner surface of the housing (301), and the two rollers (302) are symmetrically arranged.

5. A modular semi-submersible floating foundation for offshore wind turbines according to claim 2, characterized in that, The spring (308) is sleeved on the outer side of the punch (304). One end of the spring (308) is welded to the upper surface of the limiting piece (305), and the other end is welded to the protruding surface of the inner cavity of the punch shell (303).

6. A modular semi-submersible floating foundation for offshore wind turbines according to claim 3, characterized in that, Two steel strips (309) are provided, and one end of each steel strip (309) is installed on a sliding column (311).

7. A modular semi-submersible floating foundation for offshore wind turbines according to claim 3, characterized in that, The adjustment mechanism (5) includes a storage tray (52). The second housing (51) has a first chamber and a second chamber. The storage tray (52) is rotatably installed inside the first chamber of the second housing (51). The motor (53) is installed inside the second chamber of the second housing (51). The working end of the motor (53) is fixedly installed in the first chamber of the second housing (51) with the storage tray (52).

8. A modular semi-submersible floating foundation for offshore wind turbines according to claim 7, characterized in that, The surface of the storage tray (52) is wrapped with steel rope (312), and a counterweight (54) is installed on the lower surface of the second housing (51).

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