Cabin cover and wind generating set

Abstract

The utility model provides a cabin cover and a wind generating set, the cabin cover comprises a cover main body and a cover top cover plate, a top plate of the cover main body comprises a top plate main body and an opening formed in the top plate main body, and the opening is a reserved mounting opening for mounting a turning tool; the cover top cover plate covers the opening, the opening is formed in the top plate of the cover body, so that the cover top cover plate can selectively cover the opening, the cover top cover plate can be detached from the top plate before a turning tool needs to be used or a wind generating set is operated and maintained, and due to the fact that the area occupied by the cover top cover plate is smaller than that of the top plate, the cover top cover plate can be detached from the top plate. And the opening difficulty of the opening is greatly reduced, so that the blade mounting difficulty is reduced.

Description

Technical Field

[0001] This disclosure pertains to the field of wind power generation technology, and particularly relates to a nacelle cover and a wind turbine generator set. Background Technology

[0002] As the generating capacity of wind turbine generators in the wind power industry increases, so does the diameter of the rotors, making it increasingly difficult to achieve integral rotor installation. In the installation of high-power units, single-blade installation is becoming more widely used, and turning gears are indispensable for the installation and maintenance of the nacelle rotors. Furthermore, considering transportation costs, current nacelle covers are typically installed in sections. After the nacelle is installed but before the turning gear is moved, sections corresponding to the turning gear are usually pre-installed, and then the corresponding sections are hoisted and installed in place after the turning gear is moved. However, due to the large size of the turning gear in existing technology, pre-installing sections often results in an excessively large opening area for the nacelle cover, reducing the rigidity of the nacelle cover itself and affecting the safety of the unit installation. Utility Model Content

[0003] The main objective of this disclosure is to provide a nacelle cover and a wind turbine generator set that can meet the requirements for lifting and maintaining the rotor using a turning gear.

[0004] To achieve the above objectives, this disclosure provides the following technical solution:

[0005] In one aspect, this disclosure provides a nacelle cover suitable for wind turbine generator sets. The nacelle cover includes a cover body and a top cover plate. The top plate of the cover body includes a top plate body and an opening disposed on the top plate body. The opening is a reserved installation port for the installation of a turning tool. The top cover plate covers the opening.

[0006] In an exemplary embodiment of this disclosure, the top plate further includes a raised flange extending upward from the circumferential edge of the opening. The raised flange is provided with a first flange hole. The top cover includes a cover body and an inwardly turned flange disposed on the cover body and matching the raised flange. The inwardly turned flange extends from the cover body into the inner cavity of the cover body and is provided with a second flange hole aligned with the first flange hole. The top cover is connected to the opening through the first flange hole and the second flange hole.

[0007] Optionally, the nacelle cover further includes a hinge connecting one side of the raised flange and the corresponding side of the top cover plate, such that the top cover plate is rotatably connected to the raised flange via the hinge.

[0008] Specifically, the opening is located on the end of the top plate away from the impeller, the hinge is located on one side of the top cover in a first direction, the side being oriented towards the impeller of the wind turbine generator, the top surface of the top cover extends smoothly downward from one side along the first direction towards the other side, and the top surface of the top cover extends smoothly downward from the middle towards both sides in a second direction, the first direction being perpendicular to the second direction.

[0009] Furthermore, the hinge is a hinged hinge, and there are at least two hinges, which are spaced apart on one side of the top cover plate.

[0010] In another exemplary embodiment of this disclosure, the top cover plate further includes reinforcing ribs disposed on the bottom surface of the top cover plate, and the inward flanges are spaced apart on the outer side of the reinforcing ribs.

[0011] Optionally, the joint between the inward-facing flange and the raised flange is sealed.

[0012] Specifically, the top cover also includes a lifting lug assembly, which is disposed on the cover body.

[0013] Furthermore, the top plate also includes a tail piece, which is disposed on both sides of the top cover plate along the second direction. The top cover plate is located above the tail piece, and the seam between the edge of the top cover plate and the tail piece is sealed.

[0014] In another aspect, this disclosure provides a wind turbine generator set, the wind turbine generator set including a tower and a nacelle cover disposed on top of the tower as described above.

[0015] The nacelle cover and wind turbine generator provided in this disclosure have at least the following beneficial effects: by setting an opening on the top plate of the cover body, the top cover can selectively cover the opening. Before the turning gear is needed or before the wind turbine generator is operated and maintained, the top cover can be removed from the top plate. Since the top cover occupies a smaller area than the top plate, the difficulty of opening the opening is greatly reduced, and the difficulty of blade installation is reduced. Attached Figure Description

[0016] The above and / or other objects and advantages of this disclosure will become clearer from the following description of embodiments taken in conjunction with the accompanying drawings, in which:

[0017] Figure 1 This is a structural diagram showing the combined state of the top plate and the top cover plate of the cabin canopy, provided as an exemplary embodiment of this disclosure.

[0018] Figure 2 for Figure 1A partial structural diagram of the top panel of the cabin canopy.

[0019] Figure 3 for Figure 1 The first-view structural diagram of the top cover plate in the middle.

[0020] Figure 4 for Figure 1 The second-view structural diagram of the top cover plate in the middle.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Top slab; 2. Top cover plate;

[0023] 3. Hinges; 4. Structural reinforcement pads;

[0024] 11. Main body of the roof slab; 12. Opening;

[0025] 13. Raised flange; 14. Tail section;

[0026] 21. Cover plate body; 22. Inward flange;

[0027] 23. Reinforcing ribs; 24. Lifting lug assembly. Detailed Implementation

[0028] Example embodiments will now be described more fully with reference to the accompanying drawings. However, it should not be construed that the embodiments of this disclosure are limited to those described herein. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed descriptions will be omitted.

[0029] In one aspect, this disclosure provides a wind turbine generator set, which includes a tower, an impeller, and a generator. The tower supports the impeller and the generator, wherein the impeller is connected to the rotor of the generator via a shaft so that the rotation of the impeller drives the generator to generate electricity.

[0030] To improve the safety of wind turbine generators, a nacelle cover is usually installed on the top of the tower, and the generator cover is located inside the nacelle cover. Currently, the top plate of the nacelle cover is an integral structure. When it is necessary to hoist the blades, hoisting tools such as hand hoists are required to lift the bulky nacelle cover, and then a turning process is carried out, which results in high hoisting costs.

[0031] Reference Figure 1 This disclosure provides a nacelle cover suitable for wind turbine generator sets. The nacelle cover includes a cover body and a top cover plate 2. The top plate 1 of the cover body includes a top plate body 11 and an opening 12 disposed on the top plate body 11. The opening 12 is a reserved installation port for the installation of turning gears. The top cover plate 2 covers the opening 12.

[0032] This disclosure provides an opening 12 on the top plate 1 of the main body of the cover, so that the top cover 2 can selectively cover the opening 12. Before the turning gear is needed or before the wind turbine generator is operated and maintained, the top cover 2 can be removed from the top plate 1. Since the top cover 2 occupies a smaller area than the top plate 1, the difficulty of opening the opening is greatly reduced.

[0033] Reference Figure 2 To improve the sealing performance of the top cover 2 and prevent external debris from entering the cabin through the opening 12, the top plate 1 also includes a raised flange 13. The raised flange 13 extends upward from the circumferential edge of the opening 12 to form a raised rib structure, facilitating a close fit with the top cover 2 and making a sealed arrangement between the top cover 2 and the top plate 1 possible. Furthermore, by providing the upwardly protruding flange 13 at the circumferential edge of the opening 12, external rainwater can be effectively prevented from entering the cabin cavity through the gap between the top cover 2 and the top plate 1, thereby improving the safety and reliability of the cabin cover to a certain extent. Moreover, by providing the raised flange 13 at the circumferential edge of the opening 12, the structural rigidity at the opening 12 of the cabin cover is improved.

[0034] In this embodiment, the top cover plate 2 includes a cover plate body 21 and an inward flange 22 disposed on the cover plate body 21 and matched with the raised flange 13. The inward flange 22 extends from the cover plate body 21 into the inner cavity of the cover body. The inward flange 22 is disposed on the outer peripheral edge of the top cover plate 2 and protrudes downward from the lower surface of the top cover plate 2, so as to facilitate contact with the circumferential edge of the opening 12, making it possible to seal between the top cover plate 2 and the top plate 1.

[0035] This disclosure provides a raised flange 13 protruding upward from the circumferential edge of the opening 12 and an inwardly protruding flange 22 protruding downward from the circumferential edge of the top cover plate 2, so that the inwardly protruding flange 22 and the raised flange 13 can be mated, thereby sealing the top cover plate 2 onto the top plate 1.

[0036] As an example, the raised flange 13 is provided with a first flange hole, the inward flange 22 is provided with a second flange hole that is aligned with the first flange hole, and the top cover plate 2 is connected to the opening 12 through the first flange hole and the second flange hole.

[0037] As an example, after the blade is hoisted or after the wind turbine is maintained, the top cover plate 2 can be placed at the opening 12. The position of the top cover plate 2 is adjusted so that the first flange hole and the second flange hole are aligned. Then, the fasteners are passed through the first flange hole and the second flange hole at the same time and tightened. At this time, the top cover plate 2 can reliably cover the opening 12.

[0038] When maintenance of the wind turbine generator is required, the fasteners can be removed from the top cover plate 2, at which point the top cover plate 2 can be removed from the top plate 1, but this is not the only option.

[0039] This disclosure allows the top cover 2 to be detachably connected to the top plate 1 using fasteners, which satisfies the disassembly and assembly requirements of the top cover 2, and the top cover 2 can be installed at the opening 12 multiple times.

[0040] Under normal circumstances, the top cover 2 seals and closes at the opening 12 of the top plate 1, preventing rainwater or external debris from entering the cabin cavity through the gap between the top cover 2 and the top plate 1, thus improving the reliability of the cabin cover.

[0041] In this embodiment, the nacelle cover also includes a hinge 3, which connects one side of the raised flange 13 and the corresponding side of the top cover 2. This allows the top cover 2 to be flipped and connected to the raised flange 13 via the hinge 3. This configuration satisfies the opening and closing requirements of the top cover 2, and the top cover 2 can remain connected to the top plate 1. After the top cover 2 leaves the opening 12 of the top plate 1, it prevents the top cover 2 from accidentally slipping off the top plate 1, thereby improving the reliability of the top cover 2. In addition, since the top cover 2 is reliably connected to the top plate 1 via the hinge 3, when the operation and maintenance of the wind turbine requires opening the top cover 2, there is no need to use lifting equipment to lift the top cover 2, thus significantly reducing lifting costs.

[0042] As an example, the opening 12 is rectangular, the hinge 3 is located on one side of the top cover plate 2 in the first direction, one side is used to face the impeller of the wind turbine generator set, the top surface of the top cover plate 2 extends smoothly downward from one side along the first direction to the other side, and the top surface of the top cover plate 2 extends smoothly downward from the middle to both sides in the second direction, the first direction is perpendicular to the second direction.

[0043] return Figure 1 In this embodiment, the first direction is parallel to the extension direction of the wind turbine generator shaft, but is not limited thereto. The opening 12 is located on the side of the top plate 1 facing away from the impeller. The opening 12 can be located at the seam of the top plate 1, which can meet the requirements for use as a turning opening while also meeting the requirement of transporting multiple nacelle covers in one vehicle, thus improving economic efficiency. The side of the nacelle cover 2 facing the impeller is hinged to the top plate 1, but is not limited thereto.

[0044] To prevent rainwater from accumulating on the top of the canopy, the top plate 1 is designed to extend downwards and outwards from the center along the direction of rotation, and also extends downwards and outwards from the center perpendicular to the direction of rotation, thereby reducing the probability of rainwater accumulating on the top plate 1. Furthermore, the canopy cover 2 extends downwards and outwards from the hinge side, thus preventing rainwater from accumulating on the canopy cover 2. Furthermore, the canopy cover 2 extends downwards and outwards from the center in a direction perpendicular to the direction of rotation, thus greatly reducing the possibility of rainwater accumulating on the top surface of the canopy cover 2.

[0045] The above embodiment is described with the opening 12 being rectangular as an example, but it is not limited thereto. The opening 12 can also be set to a circle or an ellipse as needed, but it is not limited thereto.

[0046] As an example, hinge 3 is a hinged hinge, and there are at least two hinges 3. At least two hinges 3 are spaced apart on one side of the top cover plate 2. This arrangement further improves the reliability of the connection between the top cover plate 2 and the top plate 1, and greatly reduces the risk of the top cover plate 2 falling off accidentally even when the top cover plate 2 is in the open state.

[0047] To improve the connection reliability of hinge 3, structural reinforcing pads 4 are provided at both ends of the hinge to improve the structural strength of hinge 3, thereby ensuring that the top cover plate 2 is reliably connected to the top plate 1.

[0048] Reference Figure 3 To improve the structural strength of the top cover plate 2, the top cover plate 2 may also include reinforcing ribs 23. The reinforcing ribs 23 are disposed on the bottom surface of the top cover plate 2 and are spaced apart on the inner side of the inward-turning flange 22. This arrangement of the reinforcing ribs 23 provides excellent support. The reinforcing ribs 23 are spaced apart from the inward-turning flange 22, so that they do not obstruct the connection when the inward-turning flange 22 and the raised flange 13 are joined.

[0049] Reference Figure 4 Furthermore, the dome cover 2 also includes lifting lugs 24, which are disposed on the cover body 21. The lifting lugs 24 facilitate the hoisting of the dome cover 2 to the top of the cabin and its installation on the top plate 1. As an example, there can be two lifting lugs 24, which are spaced apart on the cover body 21. This facilitates the flipping or balance control of the dome cover 2 during hoisting, but is not a limitation thereof.

[0050] Continue to refer to Figure 1 and Figure 2The top plate 1 also includes a tail section 14, which is disposed on both sides of the top cover plate 2 along the second direction. The top cover plate 2 is located above the tail section 14, and the seam between the edge of the top cover plate 2 and the tail section 14 is sealed. In this embodiment, by disposing the tail section 14 below the top cover plate 2, rainwater flowing down from the top cover plate 2 can continue to flow downward through the tail section 14, preventing rainwater accumulation. Furthermore, the sealed arrangement between the tail section 14 and the top cover plate 2 effectively prevents rainwater from entering the inner cavity of the cabin cover.

[0051] This disclosure effectively improves the sealing performance between the top cover plate 2 and the top plate 1 by providing tail pieces 14 on both sides of the top cover plate 2 along the second direction and sealing the tail pieces 14 with the top cover plate 2.

[0052] The inner side of the cover plate 2 provided in this disclosure is provided with reinforcing ribs 23, which gives the cover plate 2 good structural strength. The cover plate 2 is reliably connected to the top plate 1 by a butt joint between the inward-turning flange 22 and the raised flange 13 and fasteners. The butt joint between the raised flange 13 and the inward-turning flange 22 effectively improves the sealing performance at the joint between the cover plate 2 and the top plate 1. Furthermore, the raised flange 13 protrudes upward from the circumferential edge of the opening 12, acting as a reinforcing rib and increasing the structural rigidity at the opening 12.

[0053] Furthermore, the top cover 2 is rotatably connected to the top plate 1 via a hinge 3, facilitating the opening of the top cover 2. The hinge 3 ensures that the top cover 2 is reliably connected to the top plate 1, eliminating the need for hoisting fixtures and thus reducing hoisting costs. In addition, even when the top cover 2 is open, it effectively prevents the top cover 2 from slipping relative to the top plate 1, avoiding the risk of falling objects from height.

[0054] The nacelle canopy structure disclosed herein is simple and economical.

[0055] In the description of this disclosure, it should be understood that the terms “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure.

[0056] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0057] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a communication connection; 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.

[0058] The features, structures, or characteristics described in this disclosure can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the foregoing description to give a full understanding of embodiments of this disclosure. However, those skilled in the art will recognize that the technical solutions of this disclosure can be practiced without one or more of the specific details described, or other methods, components, materials, etc., can be employed. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring various aspects of this disclosure.

Claims

1. A nacelle cover suitable for wind turbine generator sets, characterized in that, The cabin cover includes: The cover body, the top plate (1) of the cover body includes a top plate body (11) and an opening (12) provided on the top plate body (11), the opening (12) being a reserved installation port for the installation of the turning tool; A top cover (2) covers the opening (12).

2. The nacelle canopy as described in claim 1, characterized in that, The top plate (1) also includes a raised flange (13), which extends upward from the circumferential edge of the opening (12). The raised flange (13) is provided with a first flange hole. The top cover plate (2) includes a cover plate body (21) and an inward flange (22) provided on the cover plate body (21) and matching the raised flange (13). The inward flange (22) extends from the cover plate body (21) into the inner cavity of the cover body. The inward flange (22) is provided with a second flange hole that is aligned with the first flange hole. The top cover plate (2) is connected to the opening (12) through the first flange hole and the second flange hole.

3. The nacelle canopy as described in claim 2, characterized in that, The nacelle cover also includes a hinge (3) that connects one side of the raised flange (13) and the corresponding side of the top cover plate (2), such that the top cover plate (2) is rotatably connected to the raised flange (13) via the hinge (3).

4. The nacelle canopy as described in claim 3, characterized in that, The opening (12) is located on one end of the top plate (1) away from the impeller. The hinge (3) is located on one side of the top cover plate (2) in a first direction. The one side is arranged facing the impeller of the wind turbine generator set. The top surface of the top cover plate (2) extends smoothly downward from one side along the first direction to the other side. The top surface of the top cover plate (2) extends smoothly downward from the middle to both sides in a second direction. The first direction is perpendicular to the second direction.

5. The nacelle canopy as described in claim 3, characterized in that, The hinge (3) is a hinged hinge, and there are at least two hinges (3), which are spaced apart on one side of the top cover plate (2).

6. The nacelle canopy as described in claim 2, characterized in that, The top cover plate (2) also includes reinforcing ribs (23), which are disposed on the bottom surface of the top cover plate (2), and the inward flanges (22) are disposed at intervals on the outside of the reinforcing ribs (23).

7. The nacelle canopy as described in claim 2, characterized in that, The joint between the inward flange (22) and the raised flange (13) is sealed.

8. The nacelle canopy as described in any one of claims 2-7, characterized in that, The top cover (2) also includes a lifting lug assembly (24), which is disposed on the cover body (21).

9. The nacelle canopy as described in claim 3, characterized in that, The top plate (1) also includes a tail piece (14), which is disposed on both sides of the top cover plate (2) along the second direction. The top cover plate (2) is located above the tail piece (14), and the seam between the edge of the top cover plate (2) and the tail piece (14) is sealed.

10. A wind turbine generator set, characterized in that, The wind turbine generator set includes a tower and a nacelle housing disposed on top of the tower as described in any one of claims 1-9.

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