Method for installing a wind turbine in rainy weather

Abstract

The present disclosure relates to a wind turbine installation method in rainy days, which comprises: covering the opening of the to-be-installed part with a rainproof device, and installing a hoisting part on the to-be-installed part; hoisting the to-be-installed part to a preset position through the hoisting part, wherein the preset position is adjacent to the to-be-connected surface of the connected part; removing the rainproof device of the connected part at the to-be-connected surface, or removing the rainproof devices of the to-be-installed part and the connected part at the respective to-be-connected surfaces, and installing the to-be-installed part on the connected part. The technical solution provided by the present disclosure can realize construction in rainy days, reduce the scene of wind turbine assembly stagnation in rainy days, and improve the assembly efficiency.

Description

Technical Field

[0001] This disclosure relates to the technical field of clean energy assembly, and in particular to a method for installing a wind turbine in rainy weather. Background Technology

[0002] A wind turbine is a device that converts wind energy into electrical energy. It captures the kinetic energy of the wind through its blades, converts it into the mechanical energy of the wind turbine shaft, and then the generator converts the mechanical energy into electrical energy.

[0003] Most existing wind turbines are installed in rainless weather to avoid equipment failure caused by rain during construction. However, this also leads to low installation efficiency and the inability to complete the construction on time. Summary of the Invention

[0004] The purpose of this disclosure is to provide a method for installing wind turbines in rainy weather, which enables construction in rainy weather, reduces the occurrence of wind turbine assembly shutdowns in rainy weather, and improves assembly efficiency.

[0005] According to the present disclosure, a method for installing a wind turbine in rainy weather includes: covering the opening of the component to be installed with a rainproof device and installing a lifting device on the component; lifting the component to be installed to a preset position using the lifting device, the preset position being a position adjacent to the surface to be connected of a component; removing the rainproof device on the surface to be connected of the component, or removing the rainproof devices on the components to be installed and the components to be connected at their respective surfaces, and installing the component to be installed on the component to be connected.

[0006] Optionally, after installing the lifting device on the part to be installed, the method further includes: installing a rainproof device at the connection between the lifting device and the part to be installed.

[0007] Optionally, when the component to be installed is a bottom tower section and the component to be connected is a base ring, the method is as follows: cover the openings at both ends of the bottom tower section with rainproof devices; install lifting devices at both ends of the bottom tower section and install rainproof devices at the connection points between the lifting devices and the two ends of the bottom tower section; hoist the bottom tower section to directly above the base ring using the lifting devices, making the bottom tower section approximately vertical; remove the rainproof devices at the bottom end of the bottom tower section and the lifting devices connected to the bottom end of the bottom tower section, as well as the rainproof devices on the base ring; with the assistance of the lifting devices at the top end of the bottom tower section, install the bottom tower section onto the base ring.

[0008] Optionally, before hoisting the bottom section of the tower to directly above the foundation ring using the hoisting device, the method further includes: covering the flanges and bolts of the foundation ring with rainproof devices; installing rainproof devices on electrical equipment; and moving the electrical equipment with rainproof devices into the foundation ring.

[0009] Optionally, removing the rainproof device at the bottom of the bottom section of the tower includes: maintaining the connection between the rainproof device at the bottom of the bottom section of the tower and the bottom section of the tower; opening the rainproof device at the bottom of the bottom section of the tower to expose the surface to be connected at the opening at the bottom of the bottom section of the tower; unfolding the rainproof device at the bottom of the bottom section of the tower to the ground and covering the foundation ring and electrical equipment; correspondingly, when the rainproof device at the bottom of the bottom section of the tower is unfolded to the ground and covers the foundation ring and electrical equipment, removing the rainproof device on the foundation ring and the electrical equipment.

[0010] Optionally, when the component to be installed is a middle section tower and the component to be connected is a bottom section tower, the method is as follows: cover the openings at both ends of the middle section tower with rainproof devices; install lifting components at both ends of the middle section tower and install rainproof devices at the connection points between the lifting components and the two ends of the middle section tower; hoist the middle section tower directly above the bottom section tower using the lifting components, making the middle section tower approximately vertical; remove the rainproof devices at the bottom end of the middle section tower and the lifting components connected to the bottom end of the middle section tower, as well as the rainproof devices at the top end of the bottom section tower; with the assistance of the lifting components at the top end of the middle section tower, install the middle section tower at the top end of the bottom section tower.

[0011] Optionally, when the component to be installed is the top section of the tower and the component to be connected is the middle section of the tower, the method is as follows: cover the openings at both ends of the top section of the tower with rainproof devices; install lifting devices at both ends of the top section of the tower and install rainproof devices at the connection points between the lifting devices and the two ends of the top section of the tower; hoist the top section of the tower directly above the middle section of the tower using the lifting devices, and make the top section of the tower approximately vertical; remove the rainproof devices at the bottom of the top section of the tower and the lifting devices connected to the bottom of the top section of the tower, and remove the rainproof devices at the top of the middle section of the tower; with the assistance of the lifting devices at the top of the top section of the tower, install the top section of the tower at the top of the middle section of the tower.

[0012] Optionally, after installing the top section of the tower at the top of the middle section of the tower, the method further includes: determining whether the nacelle is installed in sections; if the nacelle is installed in sections: covering the top opening and end opening of the nacelle with rainproof devices, installing a hoisting device on the nacelle, and installing a rainproof device at the connection between the hoisting device and the nacelle; hoisting the nacelle to the top of the top section of the tower using the hoisting device installed on the nacelle; removing the rainproof device at the top of the top section of the tower, and installing the nacelle at the top of the top section of the tower; waiting for rain-free conditions, removing the remaining rainproof devices on the nacelle, hoisting the drive chain into the nacelle, and hoisting the nacelle cover to the top of the nacelle, thus completing the nacelle installation.

[0013] Optionally, if the nacelle is installed as a whole: cover the end opening of the nacelle with a rainproof device, install a hoisting device on the nacelle, and install a rainproof device at the connection between the hoisting device and the nacelle; hoist the nacelle to the top of the top section of the tower using the hoisting device installed on the nacelle; remove the rainproof device at the top of the top section of the tower, and install the nacelle at the top of the top section of the tower to complete the nacelle installation.

[0014] Optionally, when the component to be installed is a wheel hub and the component to be connected is an engine nacelle, the method is as follows: cover the openings on the three pitch surfaces of the wheel hub with rainproof devices, install a lifting device on the wheel hub, and install a rainproof device at the connection between the lifting device and the wheel hub; lift the wheel hub to one end of the engine nacelle using the lifting device; remove the rainproof device at the end opening of the engine nacelle, and install the wheel hub on the engine nacelle.

[0015] Optionally, after the hub is installed on the nacelle, the method is as follows: cover the blade root flange and double-ended studs with rainproof devices, and install a lifting device on the blade; lift the blade to one of the pitch surfaces of the hub using the lifting device installed on the blade; remove the rainproof devices on the blade and the corresponding rainproof devices on the pitch surfaces, and install the blade on the hub.

[0016] In summary, this disclosure addresses the issue of rainwater seeping into the connecting surfaces of the components before assembly, preventing malfunctions caused by rainwater infiltration. Specifically, it involves installing rainproof devices on the surfaces of the components to be installed during the previous assembly stage, or reserving rainproof devices for the components to be installed on the connecting surfaces during the subsequent assembly stage. Furthermore, covering the openings of the components to be installed with rainproof devices prevents rainwater from entering during hoisting. Finally, the rainproof devices on the connecting surfaces are removed after the components are hoisted to a position adjacent to the connecting surfaces of the components. These steps significantly reduce the risk of rainwater ingress, enabling construction in rainy weather, minimizing wind turbine assembly downtime during rain, improving assembly efficiency, and filling a gap in wind power assembly technology for rainy weather conditions. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A flowchart is shown of a method for installing a wind turbine in rainy weather according to an embodiment of the present disclosure;

[0019] Figure 2 A schematic diagram of the hoisting of the bottom section of the tower according to an embodiment of the present disclosure is shown;

[0020] Figure 3 A schematic diagram of the installation of the bottom section of the tower and the foundation ring according to an embodiment of the present disclosure is shown;

[0021] Figure 4 It shows Figure 3 Enlarged view of some of the structures in the image;

[0022] Figure 5 A front view schematic diagram of a base ring according to an embodiment of the present disclosure is shown;

[0023] Figure 6 A top view schematic diagram of an electrical device installed into a base ring according to an embodiment of the present disclosure is shown;

[0024] Figure 7 A schematic diagram of the tower after installation according to an embodiment of the present disclosure is shown;

[0025] Figure 8 A schematic diagram of a cabin hoisting operation according to an embodiment of the present disclosure is shown;

[0026] Figure 9 A schematic diagram of the installation of the nacelle and top tower section according to an embodiment of the present disclosure is shown;

[0027] Figure 10 A schematic diagram of a wheel hub according to an embodiment of the present disclosure is shown;

[0028] Figure 11 A schematic diagram of a wind turbine generator after installation is shown according to an embodiment of the present disclosure.

[0029] Explanation of reference numerals in the attached figures:

[0030] 10. Lifting components; 20. Rainproof devices;

[0031] 100, Foundation ring; 200, Bottom section of tower; 300, Electrical equipment; 400, Middle section of tower; 500, Top section of tower; 600, Nacelle; 700, Hub; 710, Pitch surface; 800, Blade. Detailed Implementation

[0032] A wind turbine is a device that converts wind energy into electrical energy. It captures the kinetic energy of the wind through its blades, converts it into the mechanical energy of the turbine shaft, and then the generator converts the mechanical energy into electrical energy. A wind turbine is typically assembled from a foundation ring, electrical equipment, a base section of the tower, at least one section of the middle tower, a top section of the tower, a nacelle, a hub, and blades.

[0033] Considering the potential risks of failure during wind turbine installation in rainy weather, such as rain damaging electrical equipment, tower flanges, and water damage during nacelle installation, most existing wind turbine installations are currently carried out in dry weather. However, with the rapid expansion of the international market, especially in Southeast Asia or regions with a high proportion of rainy seasons, installation can only be done in dry weather. This results in low efficiency and downtime during installation, severely impacting installation efficiency and often preventing timely completion of construction operations.

[0034] Based on this, this disclosure provides a method for installing wind turbines in rainy weather. By taking rainproof measures for the opening areas of each device to be installed and connected, the risk of failure during installation in rainy weather can be avoided. This enables construction in rainy weather, reduces the scenario of wind turbine assembly being halted in rainy weather, improves assembly efficiency, and fills the gap in wind power assembly technology in rainy weather.

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this disclosure, but not all embodiments.

[0036] Figure 1 This disclosure includes a flowchart of a method for installing a wind turbine in rainy weather. (Reference) Figure 1 This disclosure provides a method for installing a wind turbine in rainy weather, which may include the following steps:

[0037] S01. Cover the opening of the part to be installed with a rainproof device and install the lifting device 10 on the part to be installed.

[0038] Specifically, the components in a wind turbine can be divided into installed parts awaiting connection and parts ready for installation, based on their installation sequence. Before hoisting, the openings on the parts awaiting installation are covered with rainproof devices to prevent rainwater from entering and causing turbine failure. Simultaneously, hoisting components 10 are installed on the parts awaiting installation, facilitating hoisting and installation operations. This allows for construction work to be carried out even in rainy weather, improving installation efficiency.

[0039] It should be noted that, as defined in this disclosure, the component to be installed and the component to be connected refer to the component that needs to be installed during a certain installation step, and the component to be connected to the component to be installed.

[0040] The openings defined in this disclosure refer to openings that are easily accessible to rain during the installation of the component, based on its hoisting posture. These openings can be all openings or only some openings of the component. For example, openings can be at both ends of each tower section, the top opening of the cabin, the end opening of the cabin, and the openings at the three pitch surfaces of the hub. The hoisting component 10 can be equipped with different hoisting components depending on the component being installed; these can be slings, a combination of slings and a turning hoist, or other slings. For ease of understanding, detailed explanations will follow in conjunction with specific installation steps.

[0041] S02. The component to be installed is hoisted to a preset position using the hoisting component 10. The preset position is the position of the surface to be connected adjacent to the component to be connected.

[0042] Specifically, the preset position for hoisting the component to be installed can be determined based on the connection location between the component to be installed and the component being connected. For example, when the component to be installed needs to be connected to the component on the top surface of the component being connected, the preset position can be directly above or nearly directly above the top surface of the component to be connected. When the component to be installed needs to be connected to the component on the side of the component being connected, the preset position can be on the side of the component to be connected.

[0043] S03. Remove the rainproof device on the surface to be connected of the connected part, or remove the rainproof device on the respective surfaces to be connected of the part to be installed and the connected part, and install the part to be installed on the connected part.

[0044] Specifically, the openings of the components to be installed with the aforementioned rainproof device are not, or are all, located on the surfaces to be connected in this step. Therefore, it is necessary to first determine whether there is a rainproof device on the surfaces to be connected, and remove any existing rainproof devices on these surfaces to avoid obstructing subsequent installation operations. Next, the component to be installed is mounted on the component to be connected according to the position of the surfaces to be connected. It should be noted that "removal" as defined in this disclosure can include removing the rainproof device from the corresponding component, that is, completely separating the rainproof device from the corresponding component; it can also include removing the portion of the rainproof device located on the surface to be connected to ensure unobstructed connection, while still maintaining the connection between the rainproof device and the corresponding component. In other words, the rainproof device can only be partially removed, not completely removed.

[0045] Correspondingly, when the splicing position of the component to be installed with the component to be connected is located on the top surface of the component to be connected, the above-mentioned preset position is preferably directly above. In this way, when the rainproof device of the component to be connected is removed from the surface to be connected, the component to be installed directly above can block the opening on the surface to be connected of the component to be connected, so as to further reduce the problem of rainwater entering and causing failure.

[0046] It is worth mentioning that this disclosure addresses the issue of rainwater seeping into the connecting surfaces of the components before assembly, preventing failure during subsequent assembly when the components are not yet installed. Specifically, by installing rainproof devices on the surfaces of the components to be connected, or by reserving rainproof devices for the components to be installed on the connecting surfaces during the next assembly phase, this disclosure prevents rainwater from entering the components before installation. Furthermore, rainproof devices cover the openings of the components to be installed, preventing rainwater from entering during hoisting. Finally, the rainproof devices are removed from the connecting surfaces after the components are hoisted to a position adjacent to the connecting surfaces of the components. These steps significantly reduce the risk of rainwater ingress, enabling construction in rainy weather, minimizing wind turbine assembly downtime during rain, improving assembly efficiency, and filling a gap in wind power assembly technology for rainy weather.

[0047] Furthermore, after installing the lifting device on the part to be installed, a rainproof device can be installed at the connection between the lifting device and the part to be installed, thereby preventing rainwater from entering the part to be installed through the connection between the lifting device and the part to be installed during the lifting process, thus improving the waterproof effect.

[0048] It should be noted that the rainproof devices in this disclosure may be at least the same or all different. They are mainly set according to the specific rainproof location, and are sufficient to cover the corresponding opening or the parts to be rainproofed. The specific structure is not specifically limited in this disclosure.

[0049] Taking the base ring 100 as the connected component and the bottom section of the tower 200 as the component to be installed as an example, the above method is as follows:

[0050] like Figure 2 As shown, the two ends of the bottom tower section 200 can be covered with rainproof devices 20. Lifting components 10 are then installed at both ends of the bottom tower section 200, and rainproof devices 20 are installed at the connection points between the lifting components 10 and the bottom tower section 200. This prevents rainwater from entering the bottom tower section 200 from the openings at both ends and from the connection points between the bottom tower section 200 and the lifting components 10. Then, as... Figure 3 and Figure 4 As shown, the bottom tower section 200 is hoisted directly above the foundation ring 100 using the hoisting device 10, ensuring the bottom tower section 200 is approximately vertical. Next, the rainproof device 20 at the bottom of the bottom tower section 200 and the hoisting device 10 connected to the bottom of the bottom tower section 200 are removed, as are the rainproof devices 20 on the foundation ring 100. Finally, with the assistance of the hoisting device 10 at the top of the bottom tower section 200, the bottom tower section 200 is installed onto the foundation ring 100.

[0051] For example, the rainproof devices 20 installed at the openings at both ends of the bottom section tower 200 can be mushroom-shaped covers, and sleeve-type rainproof devices 20 can be used at the connection points between the lifting component 10 and the two ends of the bottom section tower 200. The rainproof device 20 at the top of the bottom section tower 200 can be an adjustable rainproof device 20. For instance, during hoisting, the rainproof device can be flush with the corresponding opening, and after hoisting, it can be adjusted so that the middle of the rainproof device protrudes to form a conical structure, thereby preventing rainwater from accumulating on the rainproof device 20 at the top and causing seepage and leakage.

[0052] After the bottom section tower 200 is installed on the foundation ring 100, the lifting component 10 connected to the top of the bottom section tower 200 is removed, while the rainproof device at the top of the bottom section tower 200 is retained.

[0053] like Figure 5 and Figure 6 As shown, before the bottom tower section 200 is hoisted directly above the foundation ring 100 using the hoisting device 10, a rainproof device can be installed on the flange and bolts of the foundation ring 100 to prevent the silicone sealant on the flange of the foundation ring 100 from failing due to rain, and the bolts from corroding and breaking. For example, the rainproof device for protecting the foundation ring 100 from rain can be an arc-shaped protective cover installed on the foundation ring 100.

[0054] In addition, after installing a rainproof device 20 on the electrical equipment 300, the electrical equipment with the rainproof device 20 can be moved to the area surrounded by the base ring 100. It can be hoisted or transported by other means to avoid the risk of short circuit in the cabinet and burnout of the wiring caused by rain on the electrical equipment 300.

[0055] To further prevent rainwater from entering the electrical equipment 300 through the gap between the bottom tower section 200 and the foundation ring 100 during the installation of the bottom tower section 200, this disclosure further optimizes the aforementioned rainproof device 20 at the bottom of the bottom tower section 200.

[0056] Specifically, such as Figure 3 and Figure 4 As shown, the steps of removing the rainproof device 20 at the bottom of the bottom section tower 200 specifically include: maintaining the connection between the rainproof device 20 at the bottom of the bottom section tower 200 and the bottom section tower 200; opening the rainproof device 20 at the bottom of the bottom section tower 200 and making it extend outward in a funnel shape, exposing the surface to be connected at the opening at the bottom of the bottom section tower 200; extending the bottom edge of the rainproof device at the bottom of the bottom section tower 200 to the ground, and covering the base ring 100 and electrical equipment 300. Accordingly, after the rainproof device at the bottom of the bottom section tower 200 is extended to the ground and covers the base ring 100 and electrical equipment 300, the rainproof device on the base ring 100 and electrical equipment 300 is removed. This reduces the possibility of rainwater entering the electrical equipment 300 through the gap between the bottom section tower 200 and the base ring 100 during the installation of the bottom section tower 200, ensuring equipment safety.

[0057] For example, when the bottom section tower 200 is hoisted directly above the foundation ring 100, the bottom rainproof device of the bottom section tower 200 can be opened first. When the bottom section tower 200 falls to a distance of about one meter from the foundation ring 100, the bottom rainproof device 20 of the bottom section tower 200 can be manually unfolded to the ground. The rainproof devices 20 on the foundation ring 100 and the electrical equipment 300 can be removed. Silicone is applied to the flange on the foundation ring 100 and the bolts are pre-tightened.

[0058] like Figure 7 As shown, the tower of a wind turbine is usually made up of multiple sections spliced ​​together. For ease of understanding, each section of the wind turbine tower can be defined according to its positional relationship as the bottom section tower 200, the top section tower 500, and at least one middle section tower 400.

[0059] Taking the installation method where the connected component is the bottom tower section 200 and the component to be installed is the middle tower section 400 as an example, the above method will be illustrated again. The specific method is as follows: First, cover the openings at both ends of the middle tower section 400 with rainproof devices 20. Install lifting devices 10 at both ends of the middle tower section 400, and install rainproof devices 20 at the connection points between the lifting devices 10 and the two ends of the middle tower section 400. Then, use the lifting devices 10 to hoist the middle tower section 400 directly above the bottom tower section 200, making the middle tower section 400 approximately vertical. Next, remove the rainproof devices 20 at the bottom of the middle tower section 400 and the lifting devices 10 connected to the bottom of the middle tower section 400, as well as the rainproof devices 20 at the top of the bottom tower section 200. Finally, with the assistance of the lifting devices 10 at the top of the middle tower section 400, install the middle tower section 400 at the top of the bottom tower section 200.

[0060] After the middle section tower 400 is installed on the bottom section tower 200, the hoisting component 10 connected to the top of the middle section tower 400 is removed, while the rainproof device 20 at the top of the bottom section tower 200 is retained.

[0061] Taking the installation method where the connected component is the middle section tower 200 and the component to be installed is the top section tower 500 as an example, the above method will be illustrated again. The specific method is as follows: First, cover the openings at both ends of the top section tower 500 with rainproof devices 20. Install lifting components 10 at both ends of the top section tower 500, and install rainproof devices 20 at the connection points between the lifting components 10 and the two ends of the top section tower 500. Then, using the lifting components 10 connected to the top section tower 500, hoist the top section tower 500 directly above the middle section tower 400, making the top section tower 500 approximately vertical. Next, remove the rainproof devices 20 at the bottom of the top section tower 500 and the lifting components 10 connected to the bottom of the top section tower 500, as well as the rainproof devices at the top of the middle section tower. Finally, with the assistance of the hoisting device 10 at the top of the top section tower 500, the top section tower 500 is installed at the top of the middle section tower 200.

[0062] Regarding the installation method where the connected component is one of the middle tower sections 400 and the component to be installed is another middle tower section 400, the installation method can be referred to as the installation method where the connected component is the bottom tower section 200 and the component to be installed is the middle tower section 400, or the installation method where the connected component is the middle tower section 200 and the component to be installed is the top tower section 500. This disclosure will not elaborate further here.

[0063] It should be noted that after the top section of the tower 500 is installed, the hoisting component 10 connected to the top of the top section of the tower 500 should be removed, while the rainproof device 20 at the top of the top section of the tower 500 should be retained. If the nacelle 600 is not installed on the same day, or if the nacelle 600 is to be installed at a later date, the rainproof device 20 at the top of the top section of the tower 500 can be reinforced to prevent damage from strong winds or heavy rain and to avoid the rainproof measures from becoming ineffective.

[0064] Considering that there are two conventional installation methods for the nacelle 600: separate installation and overall installation, when installing the nacelle 600 after the top section tower 500 is installed at the top of the middle section tower 400, it is necessary to determine whether the nacelle 600 should be installed separately.

[0065] If the nacelle 600 is installed in sections, the specific installation method is as follows: First, cover the top and end openings of the nacelle 600's seat with rainproof devices 20. Install the lifting device 10 on the seat, and install rainproof devices at the connection between the lifting device 10 and the seat. Then, use the lifting device 10 installed on the seat to lift the seat directly above the top section tower 500. Next, remove the rainproof device at the top of the top section tower 500 and install the seat at the top of the top section tower 500. For example, the top of the seat usually has a lifting device window, and the lifting device 10 is connected to the inside of the lifting device window of the seat. Accordingly, the connection between the lifting device 10 and the seat is the lifting device window, and a rainproof device needs to be installed on the lifting device window when installing the lifting device 10. Furthermore, after installing the seat at the top of the top section tower 500, remove the lifting device 10 and close the lifting device window.

[0066] It should be noted that the end opening as defined in this disclosure refers to the opening used for connection with the hub 700. The top opening is the opening used for installing the shroud. Secondly, although the bottom of the shroud also has an opening communicating with the top tower section 500, considering that the bottom opening of the shroud is always directly below during the hoisting process, rainwater is unlikely to enter, so it is usually not treated with rain protection. Of course, for more reliable rain protection, a rainproof device 20 can also be used to cover the bottom opening of the shroud.

[0067] The subsequent hoisting of the hatch cover and drive train requires rain-free operation. Specifically, under rain-free conditions, the remaining rainproof devices 20 on the cabin will be removed, the drive train will be hoisted into the cabin, and the hatch cover will be hoisted to the top of the cabin to complete the connection of the engine room.

[0068] For example, the user can remove the remaining rain protection device 20 from inside the tower and transport it to the ground. Simultaneously, the drivetrain can be hoisted to save time. During drivetrain hoisting, a protective cover can be used to cover the main shaft flange of the drivetrain. The cover should be installed after the drivetrain is installed. If weather conditions or the hoisting schedule permits, the protective cover on the main shaft flange should be removed first; otherwise, a suitable working window must be waited for removal.

[0069] If the 600 cabin is installed as a whole, such as Figure 8 and Figure 9 As shown, the specific installation method is as follows: Cover the end opening of the nacelle 600 with a rainproof device 20, install the lifting device 10 on the nacelle 600, and install the rainproof device 20 at the connection between the lifting device 10 and the nacelle 600. Then, use the lifting device 10 installed on the nacelle 600 to lift the nacelle 600 directly above the top section tower 500. Next, remove the rainproof device at the top of the top section tower 500 and install the nacelle 600 at the top of the top section tower 500.

[0070] For example, the top of the nacelle 600 is typically equipped with a spreading window, and the lifting component 10 connects to the interior of the spreading window of the nacelle 600. Correspondingly, the connection point between the lifting component 10 and the nacelle is the spreading window. When installing the lifting component 10, a rainproof device needs to be installed on the spreading window to prevent rainwater from entering the interior of the nacelle 600 through the spreading window. Furthermore, after the nacelle 600 is installed at the top of the top section of the tower 500, the lifting component 10 is disassembled, and the spreading window is sealed to prevent rain leakage.

[0071] Taking the installation method where the connected component is the engine compartment 600 and the component to be installed is the wheel hub 700 as an example, the above method will be illustrated again. (For reference...) Figure 9 and Figure 10 As shown, the specific method is as follows: First, cover the openings on the three pitch surfaces 710 of the hub 700 with rainproof devices. Install the lifting device 10 on the hub 700, and install the rainproof device 20 at the connection between the lifting device 10 and the hub 700. Then, lift the hub 700 to one end of the nacelle 600 located at the end opening using the lifting device 10 connected to the hub 700. Finally, remove the rainproof device at the end opening of the nacelle 600 and install the hub 700 on the nacelle 600. In this way, the hub 700 can be lifted in rainy weather, while avoiding the risk of short circuits and burnt-out wiring in the pitch electrical cabinet caused by rain on the pitch surfaces 710 of the hub 700.

[0072] For example, the connection between the lifting device 10 and the hub 700 can be located in the middle of the three pitch surfaces 710, and opposite to the opening connecting the hub 700 and the nacelle 600. In this way, when the hub 700 is lifted by the lifting device 10, the opening on the hub 700 for connecting to the nacelle 600 is directly below, making it difficult for rainwater to enter. This reduces the need for rainproof devices to be installed at the opening connecting the hub 700 and the nacelle 600. Of course, rainproof devices can also be installed at the opening connecting the hub 700 and the nacelle 600 to improve waterproofing.

[0073] like Figure 11 As shown, after the hub 700 is installed on the nacelle 600, the blade 800 can still be installed in rainy weather. Specifically, firstly, the blade root flange and double-ended studs of the blade 800 can be covered with rainproof devices 20, and then the lifting device 10 can be installed on the blade 800. Then, the blade 800 is lifted to one of the pitch surfaces 710 of the hub 700 using the lifting device 10 installed on the blade 800. Finally, the rainproof devices on the blade 800 and the corresponding pitch surface 710 are removed, and the blade 800 is installed on the hub 700. This allows the blade 800 to be installed in rainy conditions, while avoiding corrosion of the blade root flange and bolts due to rain, reducing the friction coefficient, and preventing the bolts from shearing.

[0074] For example, when removing the rainproof device on the pitch surface 710, a highly absorbent cloth can be used to wipe away any standing water on the flange and stud surfaces before tightening the mating bolts to prevent water stains from remaining.

[0075] The terms "upper" and "lower" used in this disclosure are used to describe the relative positional relationship of the various structures in the accompanying drawings. They are only for the purpose of clarity of description and are not intended to limit the scope of implementation of this disclosure. Changes or adjustments to the relative relationships without substantially altering the technical content should also be considered as part of the scope of implementation of this disclosure.

[0076] It should be noted that, in this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0077] Furthermore, in this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0078] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit them. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this disclosure.

Claims

1. A method for installing a wind turbine in rainy weather, characterized in that, The method includes: Cover the opening of the part to be installed with a rainproof device, and install the lifting device on the part to be installed; The component to be installed is hoisted to a preset position using the hoisting device. The preset position is the position of the surface to be connected adjacent to the component to be connected. Remove the rainproof device on the surface to be connected of the connected component, or remove the rainproof devices on the respective surfaces to be connected of the component to be installed and the connected component, and then install the component to be installed on the connected component.

2. The method for installing a wind turbine in rainy weather according to claim 1, characterized in that, After installing the lifting device on the component to be installed, the method further includes: A rainproof device is installed at the connection between the hoisting component and the component to be installed.

3. The method for installing a wind turbine in rainy weather according to claim 2, characterized in that, When the component to be installed is the bottom section of the tower and the component to be connected is the base ring, the method is as follows: Cover the openings at both ends of the bottom section of the tower with rainproof devices, install lifting components at both ends of the bottom section of the tower, and install rainproof devices at the connection between the lifting components and both ends of the bottom section of the tower. The bottom section of the tower is hoisted to the top of the foundation ring using the hoisting device, and the bottom section of the tower is made to be roughly vertical. Remove the rainproof device at the bottom end of the bottom section of the tower and the lifting component connected to the bottom end of the bottom section of the tower, and remove the rainproof device on the foundation ring; With the assistance of the hoisting device at the top of the bottom tower section, the bottom tower section is installed on the foundation ring.

4. The method for installing a wind turbine in rainy weather according to claim 3, characterized in that, Before hoisting the bottom section of the tower to directly above the foundation ring using the hoisting device, the method further includes: A rainproof device is installed over the flange and bolts of the base ring; Install rainproof devices on the electrical equipment and move the electrical equipment with rainproof devices into the base ring.

5. The method for installing a wind turbine in rainy weather according to claim 4, characterized in that, The rainproof device for removing the bottom section of the tower includes: Maintain the connection between the rainproof device at the bottom of the bottom section of the tower and the bottom section of the tower. Open the rainproof device at the bottom of the bottom section of the tower so that the surface to be connected at the opening at the bottom of the bottom section of the tower is exposed. Unfold the rainproof device at the bottom of the bottom section of the tower to the ground and cover the foundation ring and electrical equipment. Accordingly, when the rainproof device at the bottom end of the bottom section of the tower is deployed to the ground and covers the foundation ring and electrical equipment, the rainproof device on the foundation ring and the electrical equipment is removed.

6. The method for installing a wind turbine in rainy weather according to claim 2, characterized in that, When the component to be installed is the middle section of the tower and the component to be connected is the bottom section of the tower, the method is as follows: Cover the openings at both ends of the middle section of the tower with rainproof devices, install lifting components at both ends of the middle section of the tower, and install rainproof devices at the connection between the lifting components and both ends of the middle section of the tower. The middle section of the tower is hoisted to directly above the bottom section of the tower using the hoisting device, and the middle section of the tower is made to be roughly vertical. Remove the rainproof device at the bottom of the middle section of the tower and the hoisting components connected to the bottom of the middle section of the tower, and remove the rainproof device at the top of the bottom section of the tower; With the assistance of the hoisting device at the top of the middle section tower, the middle section tower is installed at the top of the bottom section tower.

7. The method for installing a wind turbine in rainy weather according to claim 2, characterized in that, When the component to be installed is the top section of the tower and the component to be connected is the middle section of the tower, the method is as follows: Cover the openings at both ends of the top section of the tower with rainproof devices, install lifting components at both ends of the top section of the tower, and install rainproof devices at the connection between the lifting components and both ends of the top section of the tower. The top section of the tower is hoisted to directly above the middle section of the tower using the hoisting device, and the top section of the tower is made to be roughly vertical. Remove the rainproof device at the bottom of the top section of the tower and the lifting components connected to the bottom of the top section of the tower, and remove the rainproof device at the top of the middle section of the tower. With the assistance of the hoisting device at the top of the top section of the tower, the top section of the tower is installed at the top of the middle section of the tower.

8. The method for installing a wind turbine in rainy weather according to claim 7, characterized in that, After installing the top section of the tower at the top of the middle section of the tower, the method further includes: Determine whether the engine bay is installed in separate sections; If the cabin is installed in separate sections: Cover the top and end openings of the cabin with rainproof devices, install lifting components on the cabin, and install rainproof devices at the connection between the lifting components and the cabin. The cabin is hoisted to the top of the top section of the tower using a hoisting device installed on the cabin. Remove the rainproof device at the top of the top section of the tower and install the cabin at the top of the top section of the tower; Once the weather is dry, remove the remaining rainproof devices from the cabin, hoist the drive chain into the cabin, and hoist the cabin cover to the top of the cabin to complete the cabin installation.

9. The method for installing a wind turbine in rainy weather according to claim 8, characterized in that, If the entire cabin is installed: Cover the end opening of the cabin with a rainproof device, install a hoisting device on the cabin, and install a rainproof device at the connection between the hoisting device and the cabin; The nacelle is hoisted to the top of the top section of the tower using a hoisting device installed on the nacelle; Remove the rainproof device at the top of the top section of the tower, and install the nacelle at the top of the top section of the tower to complete the nacelle installation.

10. The method for installing a wind turbine in rainy weather according to claim 2, characterized in that, When the component to be installed is a wheel hub and the component to be connected is an engine compartment, the method is as follows: Cover the openings on the three pitch surfaces of the hub with rainproof devices, install a lifting device on the hub, and install a rainproof device at the connection between the lifting device and the hub. The wheel hub is hoisted to one end of the engine compartment using the hoisting device; Remove the rainproof device at the end opening of the nacelle and install the wheel hub on the nacelle.

11. The method for installing a wind turbine in rainy weather according to claim 10, characterized in that, After the wheel hub is installed on the engine compartment, the method is as follows: Cover the blade root flange and double-ended studs with a rainproof device, and install lifting components on the blade; The blade is hoisted to one of the pitch surfaces of the hub using a hoisting device installed on the blade. Remove the rain protection devices on the blades and the corresponding rain protection devices on the pitch surfaces, and then install the blades on the hub.

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