Floating fan foundation, floating fan, typhoon protection method and wind power generation method

Abstract

The present invention discloses a floating fan foundation, a floating fan, a typhoon protection method and a wind power generation method. The floating fan foundation includes a tower foundation, a plurality of floats installed around the tower foundation, and a telescopic expansion mechanism, each float corresponds to one telescopic expansion mechanism, the telescopic expansion mechanism includes a hydraulic jack and a folding hinge, both ends of the hydraulic jack are hinged to the tower foundation and the float respectively, the folding hinge includes a plurality of mutually hinged folding arms, and both ends of the folding hinge are hinged to the tower foundation and the float respectively. The floating fan foundation provided by the present invention can improve the connection stability between the float and the tower foundation through the folding hinge, and can realize the deployment and expansion of the float through the extension and contraction of the hydraulic jack, which can meet the demands of typhoon protection while reducing the redundancy of the floating fan foundation and reducing the manufacturing cost of the wind power generation unit, compared with the conventional floating foundation.

Description

[Technical field]

[0001] The present invention relates to the technical field of floating fan foundation, and more particularly to a floating fan foundation, a floating fan, a typhoon protection method and a wind power generation method. This application claims priority from the following Chinese patents, the entire contents of which are incorporated herein by reference: Application number:202210157608.X Application date: February 21, 2022 Name of invention: Floating fan foundation, floating fan, typhoon protection method and wind power generation method [Background technology]

[0002] China's coastal areas are rich in wind resources, but are also areas where typhoons occur frequently, and the blades, cabinets and foundations of wind power generation units may be destroyed by typhoons with high wind speeds and sudden changes in wind direction. Therefore, wind power generation units are usually forcibly protected against typhoons by strengthening the strength of the floating foundation and fan structure, but this method makes the structural design of the wind power generation unit too redundant, and increases the manufacturing cost of the wind power generation unit.

[0003] Therefore, how to reduce the manufacturing cost of wind power generation units while meeting the demand for typhoon protection is a technical problem that must be solved by those skilled in the art. Summary of the Invention [Problem to be solved by the invention]

[0004] SUMMARY OF THE PRESENT EMBODIMENT The objective of the present invention is to provide a floating fan foundation for reducing the manufacturing cost of a wind power unit on the premise of meeting the demand for typhoon protection. [Means for solving the problem]

[0005] To achieve the above objectives, the present invention provides a floating fan foundation, including: Tower foundation, a plurality of floats disposed around the tower foundation; A telescopic extension mechanism, each of the floats corresponds to one telescopic extension mechanism, the telescopic extension mechanism includes a hydraulic jack and a folding hinge, both ends of the hydraulic jack are hingedly connected to the tower foundation and the float respectively, the folding hinge includes a plurality of mutually hinged folding arms, and both ends of the folding hinge are hingedly connected to the tower foundation and the float respectively.

[0006] Preferably, the floating fan foundation further comprises a controller for receiving weather information, the controller being electrically connected to the hydraulic jack.

[0007] Preferably, the floating fan foundation further includes an inclinometer capable of detecting the inclination angle of the fan, a wind speed measuring radar capable of detecting wind speed, and a floating sonar measuring device capable of detecting wave height, and the inclinometer, the wind speed measuring radar and the floating sonar measuring device are all electrically connected to the controller.

[0008] Preferably, the floating fan foundation further comprises a water pump for increasing ballast water for the float.

[0009] A floating fan, comprising: a tower; a fan installed on the tower; and a floating fan foundation according to any one of the above claims, wherein the tower is installed on the floating fan foundation.

[0010] Preferably, in the floating fan, the tower is a lifting structure.

[0011] Preferably, in the floating fan, the lifting structure includes a lifting drive gear installed on the tower base, and the tower is provided with lifting teeth on the outer periphery thereof, which can be fitted with the lifting drive gear.

[0012] Preferably, in the floating fan, the fan includes a hub and a blade installed on the hub, the blade including a first blade segment connected to the hub and a second blade segment rotatably connected to the first blade segment.

[0013] A typhoon protection method is applied to the floating fan foundation described in any one of the preceding claims, and includes the following steps: S1: In the floating fan, during a typhoon, the telescopic rod of the hydraulic jack extends and the folding hinge unfolds, thereby increasing the distance between the float and the tower foundation.

[0014] Preferably, the typhoon protection method further includes a step before step S1 below. SAI: Receives weather information and controls the extension and retraction operation of the hydraulic jack according to the weather information.

[0015] Preferably, in the typhoon protection method, the SAI includes: SAI-1: Measures the fan inclination angle using an inclinometer, wind speed using an anemometer radar, and wave height using a floating sonar measuring device. SAI-2: When the fan tilt angle exceeds a tilt angle threshold, the wind speed exceeds a wind speed threshold, and / or the wave height exceeds a wave height threshold, the controller sends a deployment command. SAI-3: When the hydraulic jack receives the deployment command, the telescopic rod of the hydraulic jack extends.

[0016] A wind power generation method, comprising the typhoon protection method according to any one of the preceding claims. Effect of the Invention

[0017] When the floating fan foundation of the present invention is used, a number of floats are installed on the outer periphery of the tower foundation, both ends of the hydraulic jack are hingedly connected to the tower foundation and the float, and the folding hinge includes folding arms hingedly connected to each other, and both ends of the folding hinge are hingedly connected to the tower foundation and the float, so that when there is no typhoon, the fan retracts the telescopic rod of the hydraulic jack, which drives the float to move to a position close to the tower foundation, and the float moves to a position close to the tower foundation, so that the folding arms of the folding hinge are folded together, thereby reducing the area of ​​the floating fan foundation at the water line, and further reducing the wave load on the floating fan foundation, thereby improving the stability of the floating fan foundation. When a typhoon approaches, the telescopic rod of the hydraulic jack is extended, which drives the float to move away from the tower foundation, and the float moves away from the tower foundation, causing the folding arms of the folding hinge to unfold, thereby increasing the recovery torque of the floating fan foundation and improving the stability of the floating fan foundation. As described above, the floating fan foundation provided by the present invention improves the connection stability between the float and the tower foundation through the folding hinge, and can realize the deployment and expansion of the float through the expansion and contraction of the hydraulic jack, which meets the demand for typhoon protection while reducing the redundancy of the floating fan foundation and reducing the manufacturing cost of the wind power unit compared with the conventional floating foundation. [Brief description of the drawings]

[0018] In order to more clearly describe the embodiments of the present invention or the technical solutions of the prior art, the following briefly introduces the drawings necessary for the description of the embodiments or the prior art. Of course, the drawings used in the following description are only a part of the embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without creative efforts.

[0019] [Figure 1] FIG. 2 is a schematic diagram of the structure of the floating fan foundation of an embodiment of the present invention during non-typhoon conditions. [Diagram 2]FIG. 2 is a schematic diagram of the upper surface structure of the floating fan foundation of an embodiment of the present invention during non-typhoon conditions; [Diagram 3] FIG. 2 is a schematic diagram of the structure of a floating fan according to an embodiment of the present invention during non-typhoon conditions; [Figure 4] FIG. 1 is a schematic diagram of the structure of the floating fan foundation of an embodiment of the present invention during a typhoon. [Diagram 5] FIG. 2 is a schematic diagram of the upper surface structure of the floating fan foundation of an embodiment of the present invention during a typhoon. [Figure 6] FIG. 2 is a schematic diagram of the structure of a floating fan according to an embodiment of the present invention during a typhoon. [Figure 7] FIG. 2 is a schematic diagram of a tower structure according to an embodiment of the present invention. [Figure 8] 1 is a schematic diagram of a structure of a float according to an embodiment of the present invention. [Figure 9] FIG. 13 is a schematic diagram of the structure of another floating fan according to an embodiment of the present invention during a typhoon. [Figure 10] 1 is a schematic diagram of the flow of a typhoon protection method according to an embodiment of the present invention. [Figure 11] FIG. 1 is a schematic diagram showing a detailed flow of procedure SA1 in an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] As mentioned above, the main objective of the present invention is to provide a floating fan foundation to reduce the manufacturing cost of wind power generation units on the premise of meeting the demands of typhoon protection.

[0021] The technical solutions of 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. Of course, the embodiments described herein are only a part of the embodiments of the present invention, and are not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are the subject of protection of the present invention.

[0022] As shown in FIGS. 1 to 11 , an embodiment of the present invention discloses a floating fan foundation, which includes a tower foundation 100 , a float 200 and a telescopic extension mechanism 300 .

[0023] Among them, there are multiple floats 200, and the multiple floats 200 are installed around the tower foundation 100, and each float 200 corresponds to one telescopic expansion mechanism 300, and the telescopic expansion mechanism 300 includes a hydraulic jack 301 and a foldable hinge 302, both ends of which are hingedly connected to the tower foundation 100 and the float 200 respectively, and the foldable hinge 302 includes a plurality of mutually hinged folding arms, and both ends of the foldable hinge 302 are hingedly connected to the tower foundation 100 and the float 200 respectively.

[0024] When using the floating fan foundation of the present invention, a number of floats 200 are installed around the outer periphery of the tower foundation 100, both ends of the hydraulic jack 301 are hinged to the tower foundation 100 and the floats 200, respectively, and the folding hinge 302 includes folding arms hinged to each other, and both ends of the folding hinge 302 are hinged to the tower foundation 100 and the floats 200, respectively, so that when there is no typhoon, the fan 500 can be easily moved by the oil. When the telescopic rod of the hydraulic jack 301 is retracted, the telescopic rod of the hydraulic jack 301 drives the float 200 to move to a position close to the tower foundation 100, and the float 200 moves to a position close to the tower foundation 100, so that the folding arms of the folding hinge 302 are folded together, the area of ​​the floating fan foundation at the water line surface is reduced, and the wave load on the floating fan foundation is further reduced, and the stability of the floating fan foundation is improved. When a typhoon approaches, the telescopic rod of the hydraulic jack 301 is extended, and the telescopic rod of the hydraulic jack 301 drives the float 200 to move to a position away from the tower foundation 100, and the float 200 moves to a position away from the tower foundation 100, so that the folding arms of the folding hinge 302 are unfolded, and the recovery torque of the floating fan foundation is increased, and the stability of the floating fan foundation is improved. As described above, the floating fan foundation provided by the present invention improves the connection stability between the float 200 and the tower foundation 100 through the folding hinge 302, and the float 200 can be deployed and extended through the telescopic rod of the hydraulic jack 301. Compared with the conventional floating foundation, it can meet the demands of typhoon protection while reducing the redundancy of the floating fan foundation and lower the manufacturing costs of the wind power unit.

[0025] It should be noted that each telescopic extension mechanism 300 may have one hydraulic jack 301 and one folding hinge 302, or multiple hydraulic jacks 301 and / or multiple folding hinges 302, and any quantity that meets the usage requirements is within the scope of the protection of the present invention. Optionally, as shown in Figures 4 to 6, in the embodiment of the present invention, there are two hydraulic jacks 301, and the telescopic rod of the hydraulic jack 301 is installed at an angle to the axis of the tower foundation 100, and there is one folding hinge 302. Thus, when a typhoon comes, the hydraulic jack 301 pushes the float 200 away from the tower foundation 100, and a stable triangular support structure is formed through the one folding hinge 302 and the two hydraulic jacks 301, which further enhances the stability of the floating fan foundation during a typhoon.

[0026] In addition, the floating fan foundation further includes a controller for receiving weather information, which is electrically connected to the hydraulic jack 301, receives weather information through the controller, and controls the extension and retraction operation of the hydraulic jack 301 according to the weather information.

[0027] It should be understood that the above weather information may be weather forecast information from a land weather forecast center. The controller controls the extension and retraction of the hydraulic jack 301 in advance according to the weather information. If the weather forecast information indicates a typhoon warning, the controller extends the hydraulic jack 301 and pushes the float 200 to extend it to the outer periphery of the tower foundation 100, that is, actively controls the telescopic extension mechanism 300 according to the weather forecast information from the land weather forecast center. Or, the weather information is real-time weather information detected by a measuring device, and if the real-time weather information indicates a typhoon state, the controller extends the hydraulic jack 301 and pushes the float 200 to extend it to the outer periphery of the tower foundation 100, that is, passively controls the telescopic extension mechanism 300 according to the real-time weather information.

[0028] Preferably, the floating fan foundation of the present invention passively controls the telescopic expansion mechanism 300 according to real-time weather information, and the floating fan foundation further includes an inclinometer capable of detecting the inclination angle of the fan, a wind speed measuring radar capable of detecting the wind speed, and a floating sonar measuring device capable of detecting the wave height, and the inclinometer, the wind speed measuring radar and the floating sonar measuring device are all electrically connected to a controller, so that the detected information such as the fan inclination angle, the wind speed and the wave height can be transmitted to the controller. When the inclination angle of the fan exceeds the inclination angle threshold, the wind speed exceeds the wind speed threshold and / or the wave height exceeds the wave height threshold, the controller will send a deployment command, and when the hydraulic jack 301 receives the deployment command, the telescopic rod of the hydraulic jack 301 will be extended and the folding hinge 302 will be deployed, thereby increasing the recovery torque of the floating fan foundation and improving the stability of the floating fan.

[0029] The present invention does not limit the above threshold values ​​of the inclination angle, the wind speed and the wave height, and any values ​​that meet the requirements for use are the subject of protection of the present invention. Optionally, the threshold value of the inclination angle in the embodiment of the present invention is 15°, the threshold value of the wind speed is 117km / h, and the threshold value of the wave height is 14m.

[0030] In addition, the floating fan foundation further includes a water pump, which increases the ballast water of the float 200 through the water pump, lowers the center of gravity of the floating fan foundation, and improves the typhoon protection of the floating fan foundation.

[0031] In addition, the present invention further discloses a floating fan, which includes a tower 400, a fan 500 installed on the tower 400, and the floating fan foundation described in any one of the above, and the tower 400 is installed on the floating fan foundation, thereby supporting the tower 400 through the floating fan foundation. Since the floating fan includes the floating fan foundation described in any one of the above, it also has the technical effects possessed by the floating fan foundation, which will not be further described here.

[0032] In addition, the tower 400 has a lifting structure, and during a typhoon, the lifting tower 400 can lower the center of gravity of the floating fan, thereby improving the floating fan's ability to defend against the typhoon.

[0033] It should be understood that the above-mentioned lifting structure may be a screw-nut transmission, a gear-rack transmission, a slide rail transmission, or other transmission methods, and any transmission methods that meet the requirements for use are within the scope of the present invention. Optionally, the embodiments of the present invention provide a specific lifting structure.

[0034] 7, the lifting structure includes a lifting drive gear 101 installed on a tower base 100, and a tower 400 has a lifting tooth 401 on its outer periphery that can be fitted with the lifting drive gear 101, so that the tower 400 is driven to rise and fall through the lifting drive gear 101. During a typhoon, the lifting structure can lower the center of gravity of the floating fan, improving its defense against the typhoon.

[0035] It should be understood that the lifting teeth 401 can be provided by installing parts such as a rack or a toothed belt on the outer periphery of the tower 400, or by directly machining a toothed groove on the outer periphery of the tower 400, and any structure that can be fitted into the lifting drive gear 101 to achieve lifting is within the scope of the present invention. In addition, in order to improve the stability of lifting, there are a plurality of lifting drive gears 101, and the plurality of lifting drive gears 101 are arranged in a circular array along the center of the tower base 100.

[0036] As shown in FIG. 8, an anti-vibration plate 201 is installed at the bottom of the float, which can lower the center of gravity of the floating fan base through the anti-vibration plate 201, and further lower the center of gravity of the floating fan, thereby improving the floating fan's defense against typhoons.

[0037] As shown in FIG. 9, the fan 500 includes a hub 501 and blades 502 mounted on the hub 501. The blades 502 include a first blade segment 5021 connected to the hub 501 and a second blade segment 5022 rotatably connected to the first blade segment 5021. Thus, during a typhoon, the second blade segment 5022 can be rotated to overlap the first blade segment 5021 to reduce the overall length of the blades 502, thereby enhancing the typhoon defense power of the floating fan.

[0038] As shown in FIG. 10 to FIG. 11, the present invention further discloses a typhoon protection method, which is applied to the floating fan foundation described in any one of the above, and includes the following steps: S1: In the floating fan, during a typhoon, the telescopic rod of the hydraulic jack 301 extends and the foldable hinge 302 unfolds, thereby expanding the distance between the float 200 and the tower foundation 100, and further increasing the recovery torque of the floating fan foundation, thereby improving the stability of the floating fan foundation.

[0039] As described above, the typhoon protection method of the present invention increases the connection stability of the float 200 and the tower foundation 100 through the folding hinge 302, and the float 200 can be expanded and contracted by the expansion and contraction of the hydraulic jack 301. Compared with the conventional floating foundation, it not only meets the demands for typhoon protection, but also reduces the redundancy of the floating fan foundation and reduces the manufacturing costs of the wind power unit.

[0040] In addition, the typhoon protection method further includes an operation before step S1 below. SAI: Receives weather information and controls the extension and retraction operation of the hydraulic jack 301 according to the weather information, so as to adjust the recovery torque of the floating fan foundation according to the extension and retraction length of the hydraulic jack 301 during a typhoon, thereby improving the stability of the floating fan foundation.

[0041] It should be understood that the weather information received in the above procedure SAI may be weather forecast information from a land weather forecast center. When the weather forecast information indicates a typhoon warning, the hydraulic jack 301 extends and pushes the float 200 of the floating fan foundation to extend to the outer periphery of the tower foundation 100, that is, the telescopic expansion mechanism 300 is actively controlled according to the weather forecast information from the land weather forecast center. Or, the weather information is real-time weather information detected by a measuring device, and when the real-time weather information indicates a typhoon state, the hydraulic jack 301 extends and pushes the float 200 to extend to the outer periphery of the tower foundation 100, that is, the telescopic expansion mechanism 300 is passively controlled according to the real-time weather information. Optionally, the weather information received in the SAI of the typhoon protection method provided by the embodiment of the present invention is real-time weather information.

[0042] Specifically, the SAI includes: SAI-1: Measure the inclination angle of the fan 500 using an inclinometer, measure the wind speed using an anemometer radar, measure the wave height using a floating sonar measuring device, transmit the measured inclination angle, wind speed and wave height to the controller, and check whether each parameter exceeds the threshold through the controller, i.e., judge whether a typhoon is coming. SAI-2: When the inclination angle of the fan 500 exceeds the inclination angle threshold, the wind speed exceeds the wind speed threshold, and / or the wave height exceeds the wave height threshold, i.e., during a typhoon, the controller sends a deployment command and controls the extension of the telescopic rod of the hydraulic jack 301. SAI-3: When the hydraulic jack 301 receives a deployment command, the telescopic rod of the hydraulic jack 301 will extend, thereby increasing the restoring torque of the floating fan foundation and improving the stability of the floating fan foundation.

[0043] In addition, in the above procedure SAI-2, the controller may send a deployment command when the fan tilt angle, wind speed and wave height all exceed a threshold value, or the controller may send a deployment command when one or two of the fan tilt angle, wind speed and wave height exceed the corresponding threshold value. In actual applications, the judgment conditions may be changed according to actual needs.

[0044] In addition, the present invention does not limit the above-mentioned threshold values ​​of the inclination angle, the threshold value of the wind speed and the threshold value of the wave height, and any values ​​that meet the requirements for use are the subject of protection of the present invention. Optionally, the threshold value of the inclination angle in the embodiment of the present invention is 15°, the threshold value of the wind speed is 117km / h, and the threshold value of the wave height is 14m.

[0045] In addition, the present invention further discloses a wind power generation method, which includes the typhoon protection method described in any one of the above, and combines all the technical effects of the typhoon protection method, and will not be further described herein.

[0046] The terms "first" and "second" in the present specification and claims and the above drawings are used to distinguish different objects, not to describe a particular order. Note that the terms "comprise" and "comprise" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or units may not be set out in the listed steps or units, and may include steps or units that are not listed.

[0047] Those skilled in the art can realize or use the present invention based on the above disclosed embodiments. Various modifications of these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to these embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. [Explanation of symbols]

[0048] 100: tower foundation, 101: lifting drive gear, 200: float, 201: anti-vibration plate, 300: telescopic extension mechanism, 301: hydraulic jack, 302: folding hinge, 400: tower, 401: lifting teeth, 500: fan, 501: hub, 502: blade, 5021: first blade division, 5022: second blade division

Claims

1. 1. A floating fan foundation, comprising: Tower foundation, a plurality of floats disposed around the tower foundation; A telescopic extension mechanism, each of said floats corresponds to one telescopic extension mechanism; The telescopic expansion mechanism includes a hydraulic jack and a folding hinge; Both ends of the hydraulic jack are hingedly connected to the tower foundation and the float, respectively; the folding hinge includes a plurality of mutually hinged folding arms; and The floating fan foundation, wherein both ends of the folding hinge are hingedly connected to the tower foundation and the float, respectively.

2. Further comprising a controller for receiving weather information; The floating fan foundation of claim 1 , wherein the controller is electrically connected to the hydraulic jack.

3. an inclinometer capable of detecting the inclination angle of the fan; A wind speed measuring radar capable of detecting wind speed; and a floating sonar measurement device capable of detecting wave height; The floating fan foundation of claim 2 , wherein said inclinometer, said wind speed measuring radar and said airborne sonar measurement device are all electrically connected to said controller.

4. The floating fan foundation of claim 1 , further comprising a water pump for augmenting ballast water for said float.

5. A floating fan, Tower and A fan installed on the tower; and a floating fan foundation according to any one of claims 1 to 4, The floating fan, wherein the tower is mounted on the floating fan foundation.

6. The floating fan foundation of claim 5, wherein the tower is a liftable structure.

7. The lifting structure includes a lifting drive gear installed on the tower base; The floating fan foundation according to claim 6, wherein the tower is provided on its outer periphery with elevating teeth that can be interlocked with the elevating drive gear.

8. The fan includes a hub. a vane mounted to the hub; the blade includes a first blade segment that connects to the hub; 6. The airborne fan of claim 5, further comprising a second blade segment pivotally connected to the first blade segment.

9. A typhoon protection method applied to the floating fan foundation according to any one of claims 1 to 4, comprising the following steps: S1: In the floating fan, during a typhoon, the telescopic rod of the hydraulic jack extends and the folding hinge unfolds, thereby increasing the distance between the float and the tower foundation.

10. The typhoon protection method according to claim 9, further comprising an operation before the following step S1. SAI: Receives weather information and controls the extension and retraction operation of the hydraulic jack according to the weather information.

11. The typhoon protection method of claim 10, wherein the SAI comprises: SAI-1: Measure the fan inclination angle using an inclinometer, measure wind speed using an anemometer radar, and measure wave height using a floating sonar measuring device; SAI-2: When the fan tilt angle exceeds a tilt angle threshold, the wind speed exceeds a wind speed threshold, and / or the wave height exceeds a wave height threshold, the controller sends a deployment command; SAI-3: When the hydraulic jack receives the deployment command, the telescopic rod of the hydraulic jack extends.

12. A wind power generation method comprising the typhoon protection method according to any one of claims 9 to 11.

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