Temporary reinforcing device and method suitable for land wind turbine generator

Abstract

The invention discloses a temporary reinforcing device and method suitable for a land wind turbine generator. The temporary reinforcing device comprises a mooring unit, an anchoring unit and an auxiliary lifting unit. The cable tying unit comprises a main cable, a hook-and-loop fastener, an auxiliary cable, a tying cable and an auxiliary lifting cable. The two ends of the main cable can be wound into a telescopic rope loop in a slipknot tying mode. One end of each mooring rope is tied to the main mooring rope, and the other end of each mooring rope is tied to the corresponding anchoring unit; one end of each auxiliary lifting cable is tied to the main cable, and the other end of each auxiliary lifting cable bypasses the corresponding auxiliary lifting unit; the secondary piece of the hook-and-loop fastener is fixed on the main cable, and the primary piece of the hook-and-loop fastener is fixed on the secondary cable; and the other end of the auxiliary cable is connected with the other end of the main cable through the master slice of the magic tape. According to the design, convenience of quick mounting and dismounting and reliability and effectiveness under the extreme weather condition are considered, and the emergency reinforcement requirement of the wind power plant in the face of natural disasters such as typhoon is met.

Description

Technical Field

[0001] The present invention relates to the technical field of onshore wind power, and in particular to a temporary reinforcement device and method suitable for onshore wind turbines. Background Art

[0002] Onshore wind farms have become the main form of wind energy development due to their relatively low construction costs and high technological maturity. However, the stability and safety of wind farms are key issues in their operation, especially under extreme weather conditions such as typhoons. The strong winds brought by typhoons may cause serious damage to wind power facilities, resulting in huge economic losses and safety hazards.

[0003] Existing wind farm reinforcement measures usually include grouting reinforcement on the outside of the tower and adding trusses to the outside of the tower, but these measures often require complex construction processes and large-scale machinery and equipment, which are not only costly, but also have a long construction period and are not conducive to rapid response to extreme weather events. In addition, these reinforcement measures may increase the operating burden of wind turbines during non-typhoon seasons and affect their efficiency. Summary of the invention

[0004] The first purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art and provide a temporary reinforcement device suitable for onshore wind turbines, which aims to achieve rapid installation before the arrival of extreme weather such as typhoons through innovative design, enhance the structural stability of wind turbines, and resist strong winds. At the same time, the device can be quickly dismantled after a typhoon to restore the normal operation of the wind turbines without the need for large-scale equipment support, significantly reducing the cost and time of reinforcement and improving the operational efficiency and safety of wind farms.

[0005] A second objective of the present invention is to provide a temporary reinforcement method suitable for onshore wind turbines.

[0006] The third object of the present invention is to provide a temporary reinforcement and dismantling method suitable for onshore wind turbines.

[0007] The first object of the present invention is achieved through the following technical solutions: a temporary reinforcement device suitable for onshore wind turbines, comprising a mooring unit, an anchoring unit and an auxiliary lifting unit; the mooring unit comprises a main cable, a Velcro, an auxiliary cable, a mooring and an auxiliary lifting cable; the two ends of the main cable can be wound into a retractable rope loop by tying a slipknot, and the rope loop can be tightly attached to the outer wall of the tower of the wind turbine by pulling the tightening end of the main cable, and the slipknot can be unfastened by pulling the slipknot release end of the main cable; there are multiple mooring cables, one end of each mooring cable is tied to the main cable, and the other end is tied to the corresponding anchoring unit, and the tower of the wind turbine can be tightened by tensioning the mooring cable The cylinder provides temporary stability; there are multiple auxiliary lifting cables, one end of each auxiliary lifting cable is tied to the main cable, and the other end is passed around the corresponding auxiliary lifting unit. The auxiliary lifting unit is temporarily placed on the railing of the wind turbine cabin, and the rope loop of the main cable can be lifted to a preset height by pulling the auxiliary lifting cable at the cabin position of the wind turbine; the Velcro molecules and mother pieces, whose child pieces are fixed on the main cable, and whose mother pieces are fixed on the auxiliary cable, are used to provide support for the rope loop when lifting the rope loop formed by the main cable, so as to prevent the slipknot from loosening; one end of the auxiliary cable is connected to one end of the main cable, and the other end is connected to the other end of the main cable through the mother piece of Velcro.

[0008] Preferably, the main cable is a fiber cable.

[0009] Preferably, the anchoring unit is a steel pile barrel structure, which can be driven into the soil layer by a pile driver, and a steel ring is provided at the top to fix the mooring cable.

[0010] Preferably, the auxiliary lifting unit is a pulley assembly, through which the auxiliary lifting cable can be retracted, stretched and released.

[0011] The second object of the present invention is achieved through the following technical solution: a temporary reinforcement method applicable to onshore wind turbines, which is implemented based on the above-mentioned temporary reinforcement device, and the specific process is as follows:

[0012] 1) Anchor unit installation: Use a pile driver to drive the anchor unit into the soil at a preset point;

[0013] 2) Main cable slipknot knotting and Velcro pasting: The main cable is wrapped around the tower, and both ends are tied with slipknots to form a retractable rope loop. The rope loop is reduced by contracting the tightened end of the main cable, and the secondary rope is pasted to the main cable with Velcro;

[0014] 3) Installation of auxiliary lifting unit: Install the auxiliary lifting unit on the top railing of the cabin to facilitate the lifting rope loop;

[0015] 4) Lowering the auxiliary lifting cable and connecting the mooring cable: lower the auxiliary lifting cable from the nacelle to the ground through the auxiliary lifting unit and connect it to the rope loop of the main cable. The connection position should make the slipknot buckle bear the least force. At the same time, connect one end of the mooring cable to the main cable according to the tower diameter so that the connection position is evenly distributed on the outer diameter of the tower.

[0016] 5) Lift the main cable loop to the predetermined position: by pulling the auxiliary lifting cable at the nacelle position, the main cable loop is raised to the predetermined position;

[0017] 6) Tighten the main cable loop: After the main cable loop reaches the predetermined position, tighten the main cable's tightening end to shrink the loop until it is close to the tower's outer wall, adjust the remaining mooring positions to make the main cable loop as horizontal as possible, and tighten the main cable's tightening end to the steel ring of the corresponding anchor unit by applying tension, and finally wrap the main cable's slipknot release end around the tower and fix it at the bottom of the tower;

[0018] 7) Tensioning and fixing of mooring cables: After the tensioning end of the main cable is fixed, the mooring cables are also tensioned and anchored on the corresponding anchoring units;

[0019] 8) Removal of auxiliary lifting unit and fixing of auxiliary lifting cable: After the mooring unit is fixed, remove the auxiliary lifting unit at the cabin railing and tie the auxiliary lifting cable to the railing; at this point, the temporary reinforcement of the onshore wind turbine is completed.

[0020] Preferably, in step 7), the mooring cable is tensioned and anchored in a symmetric cross-shaped pattern.

[0021] The third object of the present invention is achieved by the following technical solution: a temporary reinforcement and removal method applicable to onshore wind turbines. The specific process of the temporary reinforcement completed by the above method is as follows:

[0022] 1) Unbuttoning the slipknot: Release the slipknot release end of the main cable on the ground and pull it hard to release the slipknot. At this time, the rope loop of the main cable will loosen and detach from the outer wall of the tower;

[0023] 2) Release the auxiliary lifting cable: By untying the cable tie point at the cabin railing, lowering the auxiliary lifting cable, lowering the rope loop of the main cable to the ground, and retrieving the corresponding mooring cable, the temporary reinforcement and dismantling is completed.

[0024] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0025] The present invention is a temporary reinforcement measure. It can be quickly installed before a typhoon and quickly dismantled after a typhoon without the aid of large equipment. It can efficiently respond to environmental changes, does not affect the normal power generation of wind turbines, and effectively improves the revenue of wind farms.

[0026] The present invention provides stable support for the tower by applying pre-tightening force to the cables, and can be flexibly arranged in single or multi-layers according to the site. Compared with traditional fixed trusses or concrete outer wall reinforcement methods, the requirements for the site are lower and the adaptability is stronger.

[0027] The materials used in the present invention can be reused, the cost is low, and the temporary reinforcement has good economic efficiency.

[0028] The temporary reinforcement device of the present invention can carry out efficient temporary reinforcement construction of the tower of an onshore wind turbine generator set, and effectively improve the wind resistance level of the tower.

[0029] The design of the temporary reinforcement device of the present invention takes into account the convenience of rapid installation and dismantling, as well as reliability and effectiveness under extreme weather conditions; by adopting modular design and lightweight and high-strength materials, the lightness and ease of operation of the device are ensured, while meeting the emergency reinforcement needs of wind farms in the face of natural disasters such as typhoons.

[0030] In short, the present invention aims to achieve rapid installation before the arrival of extreme weather such as typhoons through innovative design, enhance the structural stability of wind turbines, and resist strong winds. At the same time, the temporary reinforcement device can be quickly dismantled after the typhoon to restore the normal operation of the wind turbine without the need for large-scale equipment support, significantly reducing the cost and time of reinforcement and improving the operational efficiency and safety of wind farms. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a diagram showing the changes in the reinforcement process of the temporary reinforcement device.

[0032] Figure 2 This is a schematic diagram of the structure of the temporary reinforcement device.

[0033] Figure 3 A partial schematic diagram of the anchoring unit.

[0034] Figure 4 It is a structural schematic diagram of the mooring unit.

[0035] Figure 5 This is one of the partial enlarged views of the mooring unit.

[0036] Figure 6 This is the second partial enlarged view of the mooring unit.

[0037] Figure 7 This is a diagram of the variations of tying a slipknot. DETAILED DESCRIPTION

[0038] The present invention is further described in detail below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0039] Example 1

[0040] See also Figures 1 to 7 As shown, this embodiment discloses a temporary reinforcement device suitable for onshore wind turbines, including a mooring unit 1, an anchoring unit 2 and an auxiliary lifting unit 3; the mooring unit 1 is mainly composed of a polymer composite fiber material, and has the characteristics of high tensile strength and wear resistance. The entire mooring unit 1 includes a main cable 101, a Velcro 102, an auxiliary cable 103, a mooring cable 104 and an auxiliary lifting cable 106; the main cable 101 is a fiber cable, and its two ends can be wound into a retractable rope loop by tying a slipknot 105. By pulling the tightening end 1011 of the main cable 101, the rope loop can be tightly attached to the outer wall of the tower of the wind turbine, and by pulling the slipknot release end 1012 of the main cable 101, the slipknot 105 can be unfastened; there are multiple mooring cables 104, one end of each mooring cable 104 is tied to the main cable 101, and the other end is tied to the anchoring unit 2. By tensioning The mooring cable 104 can provide temporary stability for the tower of the wind turbine; there are multiple auxiliary lifting cables 106, one end of each auxiliary lifting cable 106 is tied to the main cable 101, and the other end is passed around the auxiliary lifting unit 3. The auxiliary lifting unit 3 is temporarily placed on the railing of the wind turbine cabin. By pulling (lowering) the auxiliary lifting cable 106 at the cabin position of the wind turbine, the rope loop of the main cable 101 can be lifted to a preset height; the Velcro 102 molecules and mother pieces, the child piece 1022 of which is fixed on the main cable 101, and the mother piece 1021 of which is fixed on the auxiliary cable 103, are used to provide certain support for the rope loop when lifting the rope loop formed by the main cable 101, so as to prevent the noose buckle 105 from loosening; one end of the auxiliary cable 103 is connected to one end of the main cable 101, and the other end is connected to the other end of the main cable 101 through the mother piece 1021 of the Velcro 102.

[0041] Preferably, the anchoring unit 2 is mainly made of metal material and belongs to a conventional steel pile barrel structure, which can be driven into the soil layer by a pile driver, and a steel ring 201 is provided at the top thereof to fix the mooring cable 104.

[0042] Preferably, the auxiliary lifting unit 3 is a pulley assembly, through which the auxiliary lifting unit 3 can realize the retraction, extension and release of the auxiliary lifting cable 106.

[0043] Example 2

[0044] See also Figures 1 to 7 As shown, this embodiment discloses a temporary reinforcement method applicable to an onshore wind turbine generator set, which is implemented based on the temporary reinforcement device described in Example 1, and the specific process is as follows:

[0045] 1) Anchor unit installation: The anchor unit 2 is driven into the soil layer at a preset point by a pile driver;

[0046] 2) Main cable slipknot tying and Velcro pasting: The main cable 101 is wrapped around the tower, and both ends are tied with slipknots 105 to form a retractable rope loop. The rope loop is reduced by contracting the tightening end 1011 of the main cable 101, and the secondary rope 103 is pasted on the main cable 101 using Velcro 102;

[0047] 3) Installation of auxiliary lifting unit: Install the auxiliary lifting unit 3 on the top railing of the cabin to facilitate the lifting of the rope loop;

[0048] 4) Lowering the auxiliary lifting cable and connecting the mooring cable: lower the auxiliary lifting cable 106 from the nacelle position to the ground through the auxiliary lifting unit 3 and connect it to the rope loop of the main cable 101. The connection position should make the slipknot buckle 105 less stressed. At the same time, connect one end of the mooring cable 104 to the main cable 101 according to the tower diameter, so that the connection position is evenly distributed on the outer diameter of the tower;

[0049] 5) Lifting the main cable loop to a predetermined position: by pulling the auxiliary lifting cable 106 at the nacelle position, the loop of the main cable 101 rises to a predetermined position;

[0050] 6) Tighten the main cable loop: After the loop of the main cable 101 reaches the predetermined position, the tightening end 1011 of the main cable 101 is tightened to shrink the loop until it is close to the outer wall of the tower, and the positions of the remaining mooring cables are adjusted to make the loop of the main cable 101 as horizontal as possible. At the same time, the tightening end 1011 of the main cable 101 is tightened to the steel ring 201 of the corresponding anchor unit 2 by applying a certain tension force, and finally the slipknot release end 1012 of the main cable 101 is wrapped around the tower and fixed to the bottom of the tower;

[0051] 7) Tensioning and fixing of the mooring cable: After the tensioning end 1011 of the main cable 101 is fixed, the mooring cable 104 is also tensioned and anchored on the corresponding anchoring unit 2. The tensioning and anchoring of the mooring cable 104 is preferably symmetrical tensioning and anchoring in a cross shape;

[0052] 8) Removal of auxiliary lifting unit and fixing of auxiliary lifting cable: After the mooring unit 1 is fixed, the auxiliary lifting unit 3 at the cabin railing is removed, and the auxiliary lifting cable 106 is tied to the railing; at this point, the temporary reinforcement of the onshore wind turbine is completed.

[0053] Example 3

[0054] This embodiment discloses a temporary reinforcement and removal method applicable to an onshore wind turbine generator set. For the temporary reinforcement completed by the method described in Embodiment 2, the specific process is as follows:

[0055] 1) Unbuttoning the slipknot: On the ground, release the slipknot release end 1012 of the main cable 101 and pull it hard to release the slipknot 105. At this time, the rope loop of the main cable 101 will be loosened and separated from the outer wall of the tower;

[0056] 2) Release the auxiliary lifting cable: By untying the cable tie point at the cabin railing, lowering the auxiliary lifting cable 106, lowering the rope loop of the main cable 101 to the ground, and retrieving the corresponding mooring cable 104, the temporary reinforcement and dismantling is completed.

[0057] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A temporary reinforcement device suitable for onshore wind turbines, characterized in that: The invention comprises a mooring unit (1), an anchoring unit (2) and an auxiliary lifting unit (3); the mooring unit (1) comprises a main cable (101), a Velcro (102), a secondary cable (103), a mooring cable (104) and an auxiliary lifting cable (106); the two ends of the main cable (101) can be wound into a retractable rope loop by tying a slipknot (105), and the tensioning end (1011) of the main cable (101) can be pulled to The rope loop can be closely attached to the outer wall of the tower of the wind turbine generator set, and the slipknot buckle (105) can be unfastened by pulling the slipknot release end (1012) of the main cable (101); there are a plurality of mooring cables (104), one end of each mooring cable (104) is tied to the main cable (101), and the other end is tied to the corresponding anchor unit (2); by tensioning the mooring cable (104), temporary stability can be provided for the tower of the wind turbine generator set; the auxiliary lifting cable (101) 06), one end of each auxiliary lifting cable (106) is tied to the main cable (101), and the other end is passed through a corresponding auxiliary lifting unit (3), the auxiliary lifting unit (3) is temporarily placed on the cabin railing of the wind turbine, and the rope loop of the main cable (101) can be lifted to a preset height by pulling the auxiliary lifting cable (106) at the cabin position of the wind turbine; the Velcro (102) molecules and mother pieces, the child piece (1022) of which is fixed on the main cable (101), and the mother piece (1021) of which is fixed on the auxiliary cable (103), are used to provide support for the rope loop when lifting the rope loop formed by the main cable (101), so as to prevent the slipknot (105) from loosening; one end of the auxiliary cable (103) is connected to one end of the main cable (101), and the other end is connected to the other end of the main cable (101) through the mother piece (1021) of the Velcro (102).

2. A temporary reinforcement device for an onshore wind turbine according to claim 1, characterized in that: The main cable (101) is a fiber cable.

3. A temporary reinforcement device for an onshore wind turbine according to claim 1, characterized in that: The anchoring unit (2) is a steel pile barrel structure that can be driven into the soil layer by a pile driver, and a steel ring (201) is provided at the top thereof for fixing the mooring cable (104).

4. A temporary reinforcement device for an onshore wind turbine according to claim 1, characterized in that: The auxiliary lifting unit (3) is a pulley assembly, and the auxiliary lifting cable (106) can be retracted, stretched and extended through the auxiliary lifting unit (3).

5. A temporary reinforcement method for onshore wind turbines, characterized in that: The temporary reinforcement device according to any one of claims 1 to 4 is implemented, and the specific process is as follows: 1) Anchor unit installation: The anchor unit (2) is driven into the soil layer at a preset point by a pile driver; 2) Main cable slipknot tying and Velcro pasting: The main cable (101) is wound around the tower, and both ends are tied with slipknots (105) to form a retractable rope loop. The rope loop is reduced by contracting the tightening end (1011) of the main cable (101), and the auxiliary rope (103) is pasted to the main cable (101) using Velcro (102); 3) Installation of auxiliary lifting unit: Install the auxiliary lifting unit (3) on the top railing of the cabin to facilitate the lifting of the rope loop; 4) Lowering the auxiliary lifting cable and connecting the mooring cable: lower the auxiliary lifting cable (106) from the nacelle position to the ground through the auxiliary lifting unit (3) and connect it to the rope loop of the main cable (101). The connection position should make the slipknot (105) bear the least force. At the same time, connect one end of the mooring cable (104) to the main cable (101) according to the tower diameter so that the connection position is evenly distributed on the tower outer diameter; 5) lifting the main cable loop to a predetermined position: by pulling the auxiliary lifting cable (106) at the nacelle position, the loop of the main cable (101) is raised to a predetermined position; 6) Tightening the main cable loop: After the loop of the main cable (101) reaches a predetermined position, the tensioning end (1011) of the main cable (101) is tightened to shrink the loop until it is close to the outer wall of the tower, and the positions of the remaining mooring cables are adjusted to make the loop of the main cable (101) as horizontal as possible. At the same time, the tensioning end (1011) of the main cable (101) is tightened to the steel ring (201) of the corresponding anchor unit (2) by applying tension, and finally the slipknot release end (1012) of the main cable (101) is wrapped around the tower and fixed to the bottom of the tower; 7) Tensioning and fixing the mooring cable: after the tensioning end (1011) of the main cable (101) is fixed, the mooring cable (104) is also tensioned and anchored on the corresponding anchoring unit (2); 8) Removal of the auxiliary lifting unit and fixing of the auxiliary lifting cable: After the mooring cable unit (1) is fixed, the auxiliary lifting unit (3) at the cabin railing is removed, and the auxiliary lifting cable (106) is tied to the railing; at this point, the temporary reinforcement of the onshore wind turbine is completed.

6. A temporary reinforcement method for onshore wind turbines according to claim 5, characterized in that: In step 7), the mooring cable (104) is tensioned and anchored in a symmetric cross-shaped pattern.

7. A temporary reinforcement and removal method for onshore wind turbines, characterized in that: Regarding the temporary reinforcement completed by the method described in claim 5, the specific process is as follows: 1) Unbuttoning the slipknot: On the ground, the slipknot release end (1012) of the main cable (101) is released and pulled hard to release the slipknot (105), at which time the rope loop of the main cable (101) is loosened and detached from the outer wall of the tower; 2) Release the auxiliary lifting cable: By untying the cable tie point at the cabin railing, lowering the auxiliary lifting cable (106), lowering the rope loop of the main cable (101) to the ground, and retrieving the corresponding mooring cable (104), the temporary reinforcement and dismantling is completed.

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