Cabin cover of wind turbine generator and transporting and assembling method of cabin cover

Abstract

The cabin cover comprises a top plate, a side plate, a front plate, a rear plate and a bottom plate which respectively comprise a plurality of plate blocks, and the adjacent plate blocks are connected through flange connecting parts which are bent inwards respectively; wherein the top plate comprises a boss plate located at the front end, the boss plate comprises a boss part used for containing a gearbox cooling system and a bearing part used for supporting the boss part and connected with an adjacent plate, the transverse width of the boss part is smaller than the overall transverse width of the bearing part, and the boss plate is connected to the side plates and the front plate in the mode that the boss part faces upwards. Such that the nacelle cover is configured in a first configuration for field assembly; the boss plate is connected to the side plates and the front plate in a manner that the boss part faces downwards, so that the nacelle cover is constructed into a second configuration suitable for transportation, and the height of the nacelle cover in the second configuration does not exceed 4.3 meters. The cabin cover has great advantages in the aspects of transportation efficiency, cost and environmental protection.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and in particular to a nacelle cover of a wind turbine generator set and a method for transporting and assembling the nacelle cover. Background Art

[0002] Chinese laws and regulations stipulate that the height of vehicles transporting on highways must not exceed 5 meters. Furthermore, the load capacity of trucks and cranes also restricts the overall transportation and lifting of wind turbines. To meet these requirements, specialized transport equipment is required to transport the wind turbine on a lower platform between the front and rear wheels of trucks with multiple axles. To address the transportation challenges of large turbine nacelles, manufacturers often design split-piece or multi-piece nacelles, switching between high and low configurations to meet height restrictions. Another approach involves designing a removable, high-profile portion of the nacelle that can be removed and transported separately, or placed inside the nacelle during transport. To address weight restrictions, OEMs often ship wind turbines in separate pieces. This means the transmission components, such as the gearbox, main shaft, and main bearings, are transported separately and lifted separately. With this method of transportation, the nacelle panels housing the transmission components can only be assembled after the transmission components have been lifted separately.

[0003] Therefore, the current solution for handling the transportation of the nacelle cover requires protective treatment of the nacelle cover after the higher part is removed, and it is necessary to solve the storage space problem of the removed part during transportation, which will affect transportation efficiency and increase transportation costs. Summary of the Invention

[0004] The Summary of the Invention introduces a series of simplified concepts that will be further described in the Detailed Description of the Invention. The Summary of the Invention is not intended to limit the key features and essential features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0005] In order to at least partially solve the above problems, the present invention provides a nacelle cover of a wind turbine generator set, comprising a top panel, side panels, a front panel, a rear panel and a bottom panel, wherein the top panel, the side panels, the front panel, the rear panel and the bottom panel respectively include a plurality of panels, and adjacent panels are connected by flange connection portions that are respectively bent inward; wherein, the top panel includes a boss panel located at the front end, the boss panel includes a boss portion for accommodating a gearbox cooling system and a bearing portion for supporting the boss portion and connected to adjacent panels, the lateral width of the boss portion is smaller than the overall lateral width of the bearing portion, the boss panel is connected to the side panels and the front panel in a manner that the boss portion is upward, so that the nacelle cover is constructed in a first configuration for on-site assembly; the boss panel is connected to the side panels and the front panel in a manner that the boss portion is downward, so that the nacelle cover is constructed in a second configuration suitable for transportation, and the height of the nacelle cover in the second configuration does not exceed 4.3 meters.

[0006] Furthermore, the bearing portion includes a first section and a second section extending outward from the bottom ends of the left and right sides of the boss portion to be flush with the side panels on the left and right sides, and the bottom ends and top ends of the sides of the first section and the second section are respectively provided with side flange connection parts and bolt connection interfaces, and the boss plate is connected to the top side flange connection part of the side panel through the side flange connection part to form a first configuration; the boss plate is connected to the top side flange connection part of the side panel through the bolt connection interface to form a second configuration.

[0007] Furthermore, the bearing portion also includes a third section extending backward a certain distance from the bottom end of the rear side edge of the boss portion, and the rear end face of the third section is provided with a rear end flange connection portion. In the first configuration, the boss plate is connected to the front end flange connection portion of the adjacent plate of the top plate through the rear end flange connection portion.

[0008] Furthermore, in the second configuration, the boss plate is connected to a corresponding portion of a front flange connection portion of an adjacent plate of the top plate through a portion of the rear flange connection portion located at a side edge.

[0009] Furthermore, the boss portion includes a first portion for arranging the gearbox cooling system and a second portion covering the gearbox cooling system from above, and the first portion and the second portion are connected to each other through respective flange connection portions to jointly form the exhaust port.

[0010] Furthermore, the first part includes a guide plate extending downward from front to rear, and the guide plate is provided with an exhaust hole. The guide plate and the inner surface of the second part together form an exhaust channel, so that the hot air discharged from the exhaust hole flows out of the exhaust port through the exhaust channel.

[0011] Furthermore, the first portion and the bearing portion are integrally formed.

[0012] Furthermore, the inner and outer surfaces of the boss plate are both waterproofed.

[0013] The present invention also provides a method for transporting and assembling the above-mentioned nacelle cover, comprising:

[0014] sequentially joining adjacent panels of the top panel, the side panels, the front panel, the rear panel, and the bottom panel, wherein the boss panel of the top panel is connected to the side panels and the front panel with the boss portion facing downward to form a nacelle cover of the second configuration;

[0015] Transporting the second configuration nacelle to the unit assembly site;

[0016] At least a portion of the top panel including the boss panel is removed from the nacelle cover, the unit components inside the nacelle cover are assembled and the nacelle cover is assembled, so that the boss panel is connected to the side panel and the front panel in a manner that the boss portion faces upward to form a nacelle cover in a first configuration.

[0017] Furthermore, the step of connecting the boss plate of the top plate to the side plates and the front plate with the boss portion facing downward to form the nacelle cover of the second configuration comprises:

[0018] The boss plate is connected to the top flange connection part of the side plate through the bolt connection interface at the top end of the side edge of its bearing part, and is connected to the plate of the top plate adjacent to the boss plate through the part of the flange connection part at the rear end of its bearing part located at the side.

[0019] When the cabin cover of the present invention is in the transport configuration, the opening can be covered by the flipped-over installed boss plate, thereby solving the problem of height limitation and avoiding the need to arrange a separate transport space for the boss plate. Moreover, by waterproofing the inner and outer surfaces of the boss plate, the boss plate itself can provide protection and sealing effects, thereby eliminating or at least reducing the use of protective materials such as waterproof felt and plastic sheets, and having great advantages in terms of transportation efficiency, cost and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following drawings of the present invention are hereby incorporated into the present invention for understanding the present invention. The drawings show embodiments of the present invention and their descriptions, and are used to explain the device and principle of the present invention. In the drawings,

[0021] Figure 1 is a schematic diagram of the three-dimensional structure of a nacelle cover according to an embodiment of the present invention;

[0022] Figure 2 Schematic diagram of the exploded structure of a nacelle cover according to an embodiment of the present invention;

[0023] Figure 3A front view of a first configuration nacelle cover according to an embodiment of the present invention;

[0024] Figure 4 A front view of a second configuration nacelle cover according to an embodiment of the present invention;

[0025] Figure 5a This is a schematic diagram of the installation of a first configuration nacelle cover according to an embodiment of the present invention;

[0026] Figure 5b This is a schematic diagram of the installation of a second configuration nacelle cover according to an embodiment of the present invention;

[0027] Figure 6 A schematic diagram comparing a first configuration and a second configuration of a nacelle cover according to an embodiment of the present invention;

[0028] Figure 7 Schematic diagram of the three-dimensional structure of the boss plate of the nacelle cover according to an embodiment of the present invention;

[0029] Figure 8 It is a schematic three-dimensional structural diagram of the bearing portion and the first portion of the boss portion of the boss plate of the nacelle cover according to an embodiment of the present invention.

[0030] The symbols in the accompanying drawings represent the following:

[0031] 1. Top plate; 11. Boss plate; 111. Boss portion; 1111. First portion; 1111a. Guide plate; 1111b. Exhaust hole; 1112. Second portion; 1113. Exhaust port; 112. Carrying portion; 1121. First section; 1122. Second section; 1123. Third section;

[0032] 2. Side panels;

[0033] 3. Front panel;

[0034] 4. Back panel;

[0035] 5. Base plate. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. The described embodiments are only preferred embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0037] It should be understood that, unless otherwise defined, the technical and scientific terms used herein have the same meanings as commonly understood by one skilled in the art in the art of the present invention. The terms used herein are intended solely to describe specific embodiments and are not intended to limit the present invention. Terms such as "part" and "member" may refer to either a single part or a combination of parts. The singular forms "a," "an," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. Ordinal numbers such as "first" and "second" are merely identifiers and do not convey any other meaning, such as a specific order. Furthermore, for example, the term "first part" does not by itself imply the presence of a "second part," nor does the term "second part" by itself imply the presence of a "first part." When used in this specification, the terms "comprising" and / or "including" specify the presence of the recited features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or combinations thereof. The terms "upper," "lower," "front," "back," "left," "right," "inner," "outer," "center," "vertical," "horizontal," and similar expressions are intended for illustrative purposes only and are not intended to be limiting. The terms "connect," "install," "connected," and "set" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; they can refer to mechanical or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal communication between two components. A person skilled in the art will understand the specific meanings of the above terms in the present invention. Features described in one embodiment herein may be applied to another embodiment, either alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0038] Hereinafter, specific embodiments of the present invention will be described in more detail with reference to the accompanying drawings. These drawings illustrate representative embodiments of the present invention and do not limit the present invention.

[0039] The present invention provides a nacelle cover for a wind turbine generator set. Figure 1-8As shown, the nacelle cover of the present invention includes a top panel 1, side panels 2, a front panel 3, a rear panel 4 and a bottom panel 5. The top panel 1, the side panels 2, the front panel 3, the rear panel 4 and the bottom panel 5 can respectively include a plurality of panels, and adjacent panels are connected by flange connections bent inward. The top panel 1 includes a boss panel 11 at the front end, the boss panel 11 includes a boss portion 111 for accommodating a gearbox cooling system and a bearing portion 112 for supporting the boss portion 111 and connected to adjacent panels. The transverse width of the boss portion 111 is less than the overall transverse width of the bearing portion 112. The boss panel 11 can be connected to the side panels 2 and the front panel 3 with the boss portion 111 facing upward, so that the nacelle cover is configured in a first configuration for on-site assembly. The boss panel 11 can also be connected to the side panels 2 and the front panel 3 with the boss portion 111 facing downward, so that the nacelle cover is configured in a second configuration suitable for transportation. The height of the nacelle cover in the second configuration does not exceed 4.3 meters, and is preferably about 4 meters. Each panel of the nacelle cover can be made of sandwich laminates or other fiber materials or resin materials, and embedded parts such as wire tubes, nuts, etc. can be provided as needed. Preferably, the top plate 1 is made of transparent material so that the internal structure of the nacelle cover and the unit structure can be observed from the outside.

[0040] Figure 3 The nacelle cover is shown in a first configuration, ie, a normal assembly configuration of the unit. The boss portion 111 of the boss plate 11 protrudes upward, meeting the space requirement of the gearbox heat exchanger. The assembly height of the nacelle cover in the first configuration is Ha. Figure 4 The nacelle cover is shown in the second configuration, i.e., the transport configuration. The boss portion 111 of the boss plate 11 protrudes downward. Since the lateral width of the boss portion 111 is smaller than the overall lateral width of the boss plate 11, the boss portion 111 is located inside the nacelle cover, thereby significantly reducing the overall height of the nacelle cover, thereby meeting the domestic road transport requirements. Figure 6 As shown, the assembled height of the nacelle cover in the second configuration is Hb. Based on legal regulations and transportation measurements, Hb should not exceed 4.3 meters, and is preferably approximately 4 meters. Since the boss portion 111 is located inside the nacelle cover in the first configuration, Ha can be adjusted based on the space requirements of the unit components. Ha - Hb is the height difference H between the first and second configurations of the nacelle cover.

[0041] To address transportation challenges, large wind turbine nacelles typically remove the higher or raised portion of the nacelle and place it separately or inside the nacelle during transport. Placing the nacelle inside the nacelle takes up significant space and requires additional packaging and protective treatment. Furthermore, removing the higher portion creates a large opening at the top of the nacelle. To protect the nacelle from external influences during transport, the opening is covered with a custom, rigidly supported waterproof felt or plastic sheeting. Because waterproof felt is significantly damaged during transport and storage, it is difficult to reuse. While reusable, plastic sheeting requires collection and transport from the site for reuse, impacting transport efficiency and increasing costs. In contrast, the nacelle cover of the present invention, even in its transport configuration, maintains its opening covered by a reversed, mounted raised plate. Furthermore, by waterproofing both the inner and outer surfaces of the raised plate, it provides both protection and sealing. This reduces the use of waterproof felt and plastic sheeting, offering significant cost and environmental advantages.

[0042] According to an embodiment of the present invention, the bearing portion 112 includes a first section 1121, a second section 1122, and a third section 1123. The first section 1121 and the second section 1122 extend outward from the bottom ends of the left and right sides of the boss portion 111 to be flush with the left and right side panels 2. The bottom ends and top ends of the respective side panels are provided with side flange connections and bolt connection interfaces, respectively. The boss panel 11 is connected to the top flange connections of the side panels 2 via the side flange connections to form a first configuration. The boss panel 11 is connected to the top flange connections of the side panels 2 via the bolt connection interfaces to form a second configuration. The third section 1123 extends backward a certain distance from the bottom end of the rear side edge of the boss portion 111, and its rear end surface is provided with a rear end flange connection portion. In the first configuration, the boss panel 11 is connected to the front end flange connection portion of the adjacent panel of the top plate 1 through the rear end flange connection portion of the third section 1123; preferably, in the second configuration, the boss panel 11 is connected to the corresponding portion of the front end flange connection portion of the adjacent panel of the top plate 1 through the portion of the rear end flange connection portion of the third section 1123 located at the side, so as to improve the connection strength between the boss panel 11 and the adjacent panel of the cabin cover during transportation.

[0043] According to an embodiment of the present invention, Figure 7 and Figure 8As shown, the boss portion 111 includes a first portion 1111 for accommodating the gearbox cooling system and a second portion 1112 that covers the gearbox cooling system from above. The first and second portions 1111, 1112 are connected via respective flange connections, forming a rearward-facing exhaust port 1113 at the rear end of the boss portion 111. Preferably, the first portion 1111 and the bearing portion 112 are integrally formed, thereby simplifying the connection interface of the boss plate 11. Furthermore, the first portion 1111 includes a deflector 1111a extending downwardly and obliquely from front to rear. The deflector 1111a defines an exhaust hole 1111b. In the assembled configuration, the deflector 1111a is positioned above the gearbox heat exchanger, with the exhaust hole 1111b facing the direction of the heat exchanger's hot air flow. The deflector 1111a and the inner surface of the second portion 1112 together form an exhaust channel, allowing hot air discharged from the exhaust hole 1111b to flow out of the exhaust port 1113 through the exhaust channel. The second part 1112 covers the deflector 1111a from above and can also form a shielding protection for the gearbox heat exchanger and other unit components. Therefore, preferably, the top plate of the second part 1112 extends beyond the bottom edge of the boss portion 111 along the axis of the cabin cover, and the deflector 1111a is constructed to extend downward from front to rear, which also helps prevent rainwater from entering the interior of the cabin.

[0044] The present invention also provides a method for transporting and assembling the nacelle cover, comprising:

[0045] The adjacent panels of the top panel 1, the side panels 2, the front panel 3, the rear panel 4 and the bottom panel 5 are sequentially joined, wherein the boss panel 11 of the top panel 1 is connected to the side panels 2 and the front panel 3 with the boss portion 111 facing downward, to form a second configuration of the nacelle cover;

[0046] Transporting the second configuration nacelle to the unit assembly site;

[0047] At least a portion of the top panel 1 including the boss panel 11 is removed from the nacelle cover, the unit components inside the nacelle cover are assembled and the nacelle cover is assembled, so that the boss panel 11 is connected to the side panel 2 and the front panel 3 in a manner that the boss portion 111 is upward, forming a first configuration of the nacelle cover.

[0048] Preferably, the above-mentioned connection of the boss plate 11 of the top plate 1 to the side plate 2 and the front plate 3 with the boss portion 111 facing downward to form the nacelle cover of the second configuration includes:

[0049] The boss plate 11 is connected to the top flange connection part of the side plate 2 through the bolt connection interface at the top end of the side edge of its bearing part 112, and is connected to the plate adjacent to the boss plate 11 of the top plate 1 through the part of the flange connection part at the rear end of its bearing part 112 located at the side.

[0050] The present invention has been described through the above embodiments, but it should be understood that the above embodiments are for illustrative and illustrative purposes only and are not intended to limit the present invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the above embodiments and that various variations and modifications may be made based on the teachings of the present invention, all of which fall within the scope of the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nacelle cover of a wind turbine generator set, characterized in that: The invention comprises a top plate (1), a side plate (2), a front plate (3), a rear plate (4) and a bottom plate (5), wherein the top plate (1), the side plate (2), the front plate (3), the rear plate (4) and the bottom plate (5) respectively comprise a plurality of plates, and adjacent plates are connected via flange connection portions that are bent inwards; wherein the top plate (1) comprises a boss plate (11) located at the front end, and the boss plate (11) comprises a boss portion (111) for accommodating a gearbox cooling system and a bearing portion (111) for supporting the boss portion (111) and connected to adjacent plates. 12), the lateral width of the boss portion (111) is smaller than the overall lateral width of the bearing portion (112), the boss plate (11) is connected to the side panels (2) and the front panel (3) in a manner that the boss portion (111) is upward, so that the cabin cover is constructed in a first configuration for on-site assembly; the boss plate (11) is connected to the side panels (2) and the front panel (3) in a manner that the boss portion (111) is downward, so that the cabin cover is constructed in a second configuration suitable for transportation, and the height of the cabin cover in the second configuration does not exceed 4.3 meters.

2. The nacelle cover according to claim 1, characterized in that: The bearing portion (112) comprises a first section (1121) and a second section (1122) extending outward from the bottom ends of the left and right sides of the boss portion (111) to be flush with the side panels (2) on the left and right sides, the bottom ends and top ends of the sides of the first section (1121) and the second section (1122) are respectively provided with side flange connection parts and bolt connection interfaces, the boss plate (11) is connected to the top side flange connection part of the side panel (2) through the side flange connection part to form a first configuration; the boss plate (11) is connected to the top side flange connection part of the side panel (2) through the bolt connection interface to form a second configuration.

3. The nacelle cover according to claim 2, characterized in that: The bearing portion (112) further comprises a third section (1123) extending backwards by a certain distance from the bottom end of the rear side edge of the boss portion (111), and a rear end surface of the third section (1123) is provided with a rear end flange connection portion. In a first configuration, the boss plate (11) is connected to the front end flange connection portion of an adjacent plate of the top plate (1) via the rear end flange connection portion.

4. The nacelle cover according to claim 3, characterized in that: In a second configuration, the boss plate (11) is connected to a corresponding portion of a front flange connection portion of an adjacent plate of the top plate (1) via a portion of the rear flange connection portion located at the side.

5. The nacelle cover according to claim 1, characterized in that: The boss portion (111) includes a first portion (1111) for arranging a gearbox cooling system and a second portion (1112) for covering the gearbox cooling system from above, wherein the first portion (1111) and the second portion (1112) are connected to each other via respective flange connection portions to jointly form an exhaust port (1113) facing rearward.

6. The nacelle cover according to claim 5, characterized in that: The first part (1111) comprises a guide plate (1111a) extending obliquely downward from front to rear, the guide plate (1111a) being provided with an exhaust hole (1111b), and the guide plate (1111a) and the inner surface of the second part (1112) together form an exhaust channel, so that hot air exhausted from the exhaust hole (1111b) flows out of the exhaust port (1113) via the exhaust channel.

7. The nacelle cover according to claim 6, characterized in that: The first part (1111) and the bearing part (112) are integrally formed.

8. The nacelle cover according to any one of claims 1 to 7, characterized in that: The inner and outer surfaces of the boss plate (11) are both waterproofed.

9. A method for transporting and assembling a nacelle cover according to any one of claims 1 to 8, characterized in that: include: The adjacent panels of the top panel (1), the side panel (2), the front panel (3), the rear panel (4) and the bottom panel (5) are sequentially spliced ​​together, wherein the boss panel (11) of the top panel (1) is connected to the side panel (2) and the front panel (3) with the boss portion (111) facing downward, so as to form a nacelle cover of a second configuration; transporting the second configuration nacelle cover to the unit assembly site; At least a portion of the top plate (1) including the boss plate (11) is removed from the nacelle cover, the unit components inside the nacelle cover are assembled and the nacelle cover is assembled, so that the boss plate (11) is connected to the side plate (2) and the front plate (3) in a manner that the boss portion (111) is upward, thereby forming a nacelle cover of a first configuration.

10. The method for transporting and assembling a nacelle cover according to claim 9, characterized in that: The cam plate (11) of the top plate (1) is connected to the side plate (2) and the front plate (3) in a manner that the cam portion (111) is downwardly oriented to form a nacelle cover of a second configuration, comprising: The boss plate (11) is connected to the top flange connection portion of the side plate (2) via a bolt connection interface at the top end of the side edge of its bearing portion (112), and is connected to a plate of the top plate (1) adjacent to the boss plate (11) via a portion of the flange connection portion at the rear end of its bearing portion (112) located at the side edge.

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