A new wind turbine nacelle cover structure for wind turbine generator sets

Abstract

The present invention discloses a novel wind turbine nacelle cover structure for a wind turbine generator set, comprising a bottom plate assembly, a front plate assembly, a left side panel assembly, a right side panel assembly, a rear plate assembly, and a top plate assembly. The bottom plate assembly, the front plate assembly, the left side panel assembly, the right side panel assembly, the rear plate assembly, and the top plate assembly all include peripheral side beams, and modularly assembled panels are inserted into the peripheral side beams. The panels of the front plate assembly, the left side panel assembly, the right side panel assembly, and the rear plate assembly are each assembled from a plurality of single-layer panel modules assembled in sequence, while the panel of the top plate assembly is assembled from a plurality of double-layer panel modules assembled in sequence. The present invention not only meets the basic material requirements of existing nacelles, but also effectively solves the problem of the difficulty in recycling fiberglass nacelles; it can effectively reduce mold costs, thereby reducing the production cost of the nacelle cover; and it can adopt a modular assembly method, which facilitates on-site hoisting, commissioning, and assembly requirements while also reducing transportation costs.

Description

Technical Field

[0001] The invention relates to a novel wind turbine nacelle cover structure for a wind turbine generator set, belonging to the technical field of wind power generation. Background Art

[0002] As a crucial component of a wind turbine, the wind turbine nacelle serves as its primary protective element. When operating in harsh weather conditions, it ensures the proper functioning of the turbine, protecting internal equipment and personnel from external environmental factors such as wind, rain, snow, salt spray, and ultraviolet radiation. To ensure 20 years of proper operation in these conditions, the nacelle must be high-quality and highly reliable. Nacelles are large in size and require numerous accessories, with complex models often requiring dozens of components.

[0003] Fiberglass, with its high strength and corrosion resistance, is widely used in wind turbine nacelles. The production of fiberglass products relies on the support of large molds, so fiberglass molding molds are key equipment in the nacelle molding process. With the continuous development of the economy and society, the pace of innovation in wind power equipment is accelerating. The time it takes to bring a new product to market has been shortened from seven or eight years to approximately three years, and nacelles are also facing the need for rapid upgrades. Fiberglass molding molds are one-piece molding, and a single mold can generally only be used for one product, preventing the use of multiple products. The high mold costs also increase the production cost of nacelles.

[0004] Furthermore, the production process of FRP products produces irritating gases, volatile organic compounds, and wastewater, which, if not properly handled, can pollute the environment. The glue and glass fiber used in FRP production can have harmful effects on the health of workers. Glue is flammable, and the production process is also hazardous. FRP recycling technology lacks established technology, and currently, it is primarily disposed of through landfills and incineration. FRP takes a very long time to decompose, up to hundreds of years, causing lasting damage to the environment. Incineration also produces toxic fumes.

[0005] The fiberglass cabin cover is formed in one piece, is huge in size and has low transportation efficiency.

[0006] Wind power is a clean energy source, yet its equipment is manufactured using environmentally unfriendly materials, a significant drawback. Therefore, the industry urgently needs an environmentally friendly, recyclable, and cost-effective alternative to fiberglass for nacelles, addressing the inconveniences and drawbacks of existing fiberglass nacelles. Summary of the Invention

[0007] In view of the deficiencies in the background technology, the present invention provides a new wind turbine nacelle cover structure for a wind turbine generator set, which not only meets the basic material requirements of existing nacelle covers, but also effectively solves the problem of difficulty in recycling fiberglass nacelle covers; it can effectively reduce mold costs, thereby reducing the production cost of nacelle covers; it can adopt a modular assembly method to meet the construction requirements of various links such as on-site lifting, debugging and assembly, and can also effectively reduce transportation costs.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0009] A novel wind turbine nacelle cover structure for a wind turbine generator set includes a bottom plate assembly, a front plate assembly, a left side panel assembly, a right side panel assembly, a rear panel assembly, and a top panel assembly;

[0010] The front panel assembly, the left side panel assembly, the right side panel assembly, and the rear panel assembly are connected to the top of the bottom panel assembly by bolts, and the top panel assembly is connected to the top of the front panel assembly, the left side panel assembly, the right side panel assembly, and the rear panel assembly by bolts; the front panel assembly, the left side panel assembly, the right side panel assembly, and the rear panel assembly are fixedly connected to each other by snap-fit ​​T-bolts.

[0011] The bottom plate assembly, front plate assembly, left side panel assembly, right side panel assembly, rear plate assembly and top plate assembly all include side beams forming a circle, and the circle side beams are inserted with compartment panels made of modular splicing; the compartment panels of the front plate assembly, left side panel assembly, right side panel assembly and rear plate assembly are all made up of multiple single-layer compartment panel modules spliced ​​in sequence, and the compartment panels of the top plate assembly are made up of multiple double-layer compartment panel modules spliced ​​in sequence.

[0012] Furthermore, the single-layer panel module is provided with a single-layer panel male end and a single-layer panel female end on both sides along the length direction. The single-layer panel male end and the single-layer panel female end are both located on the side close to the inner cavity of the cabin cover. Adjacent single-layer panel modules are interlocked by splicing the single-layer panel male end and the single-layer panel female end. A sealed cavity is formed at the joint, and the cavity is filled with sealant; a connecting plate is provided on the side of the single-layer panel male end.

[0013] Furthermore, the double-layer box panel module is provided with a double-layer box panel male end and a double-layer box panel female end on both sides along the length direction, an interlocking groove is provided above the double-layer box panel male end, and an interlocking protrusion is provided above the double-layer box panel female end. The interlocking groove and the interlocking protrusion are located on the side away from the inner cavity of the cabin cover; the double-layer box panel male end and the double-layer box panel female end between adjacent double-layer box panel modules cooperate to form an interlock, and the interlocking protrusion cooperates with the interlocking groove to form an interlock.

[0014] Furthermore, a strip-shaped protrusion is provided on the upper surface of the double-layer cabin panel module, and the strip-shaped protrusion is arranged along the length direction of the double-layer cabin panel module, and the length of the strip-shaped protrusion is smaller than the length of the double-layer cabin panel module; an inner surface notch is provided in the lower surface of the double-layer cabin panel module.

[0015] Furthermore, the floor assembly includes a symmetrically arranged left floor assembly and a right floor assembly, and the inner ends of the left floor assembly and the right floor assembly are connected by bolts; the left floor assembly and the right floor assembly both include side beams forming a circle, and the box plates are installed in the circle side beams, and adjacent side beams are connected and fixed by reinforcing angle pieces, and the side beams are provided with plug-in slots for installing the box plates; a reinforcing cross beam is installed on the inner surface of the box plate.

[0016] Furthermore, the front plate assembly is arranged at a certain angle to the bottom plate assembly, and the front plate assembly consists of two parts that are symmetrically arranged on the left and right. The left and right parts of the front plate assembly both include side beams forming a circle, and the box plate is installed in the circle side beams, and the inner surface of the box plate is installed with a reinforcing cross beam; a center circle is provided in the middle of the front plate assembly.

[0017] Furthermore, the left side panel assembly and the right side panel assembly are symmetrically arranged, and both the left side panel assembly and the right side panel assembly are composed of two parts, the upper and lower parts. Both structures include side beams forming a circle, and the box plates are installed in the circle side beams. A reinforcing cross beam is installed on the inner surface of the upper structure box plate, and two reinforcing cross beams are installed on the inner surface of the lower structure box plate.

[0018] Furthermore, the rear plate assembly is arranged in parallel with the front plate assembly, and the rear plate assembly includes side beams forming a circle, a box plate is installed in the circle side beams, and a reinforcing cross beam is installed on the inner surface of the box plate; two observation windows are provided on the rear plate assembly.

[0019] Furthermore, the top plate assembly is assembled from five small assemblies, namely top plate assembly 1, top plate assembly 2, top plate assembly 3, top plate assembly 4 and top plate assembly 5. Each small assembly includes four peripheral beams, and the four peripheral beams are inserted with box plates, and reinforcing cross beams are installed on the inner surface of the box plates.

[0020] Furthermore, drainage holes are opened on the bottom side beam of the front plate assembly, drainage holes are opened on the bottom side beams of the upper and lower assemblies of the left side surround assembly, drainage holes are opened on the bottom side beams of the upper and lower assemblies of the right side surround assembly, and drainage holes are opened on the bottom side beam of the rear plate assembly.

[0021] After adopting the above technical solution, the present invention has the following advantages compared with the prior art:

[0022] The new nacelle cover is made of high-strength aluminum alloy, featuring lightweight, high strength, easy processing, chemical corrosion resistance, salt spray resistance, and high recycling value. It not only meets the basic material requirements of existing nacelle covers, but also effectively solves the recycling problem of fiberglass nacelle covers.

[0023] The new nacelle cover has a flexible design concept and can realize design solutions of different specifications and sizes. The molds and profiles are highly versatile, which effectively reduces mold costs and thus reduces the production cost of the nacelle cover.

[0024] The new nacelle uses a unique modular assembly method, which features high manufacturing precision and a short production cycle, meeting the requirements of on-site hoisting, commissioning, and assembly. The modular design facilitates automated and large-scale production, effectively reducing labor intensity, improving labor efficiency, and also effectively lowering transportation costs.

[0025] The new cabin cover is more environmentally friendly. After reaching the end of its service life, the aluminum alloy can be recycled and reused, and the recovery rate and residual value are very high.

[0026] The present invention is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural stereogram of the present invention;

[0028] Figure 2 It is a structural stereogram of the present invention along another direction;

[0029] Figure 3 1. It is a structural diagram of the base plate assembly;

[0030] Figure 4 1. It is a structural diagram of the front panel assembly;

[0031] Figure 5 It is a structural diagram of the left side panel assembly;

[0032] Figure 6 1. It is a structural diagram of the rear plate assembly;

[0033] Figure 7 1. It is a structural diagram of the top plate assembly;

[0034] Figure 8 This is a schematic diagram of the opening of the drainage hole;

[0035] Figure 9 It is a structural diagram of a single-layer compartment panel module;

[0036] Figure 10 This is a schematic diagram of the connection nodes of the single-layer compartment panel module

[0037] Figure 11 It is a structural diagram of the double-deck compartment panel module;

[0038] Figure 12 is a cross-sectional schematic diagram of a double-deck compartment panel module;

[0039] Figure 13 It is a schematic diagram of the connection nodes of the double-compartment panel module.

[0040] In the figure, 1-bottom plate assembly left, 2-bottom plate assembly right, 3-front plate assembly, 4-left side panel assembly, 5-right side panel assembly, 6-rear plate assembly, 7-top plate assembly, 701-top plate assembly one, 702-top plate assembly two, 703-top plate assembly three, 704-top plate assembly four, 705-top plate assembly five, 8-side beam, 9-carriage plate, 901-single-layer carriage plate module, 902-single-layer carriage plate male end , 903-single-layer box panel female end, 904-connecting plate, 905-double-layer box panel module, 906-strip protrusion, 907-inner notch, 908-double-layer box panel male end, 909-double-layer box panel female end, 9010-interlocking groove, 9011-interlocking protrusion, 10-reinforcement beam, 11-wind tower mounting hole, 12-center circle, 13-drainage hole, 14-window, 15-maintenance entrance and exit. DETAILED DESCRIPTION

[0041] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0042] like Figures 1-13 As shown together, the present invention provides a novel wind turbine nacelle cover structure for a wind turbine generator set, comprising a bottom plate assembly, a front plate assembly 3, a left side panel assembly 4, a right side panel assembly 5, a rear plate assembly 6 and a top plate assembly 7.

[0043] The front plate assembly 3, the left side panel assembly 4, the right side panel assembly 5 and the rear plate assembly 6 are connected to the top of the bottom plate assembly by bolts, and the top plate assembly 7 is connected to the top of the front plate assembly 3, the left side panel assembly 4, the right side panel assembly 5 and the rear plate assembly 6 by bolts; the front plate assembly 3, the left side panel assembly 4, the right side panel assembly 5 and the rear plate assembly 6 are stably fixed between adjacent assemblies by snap-fit ​​T-bolts.

[0044] The baseplate assembly is integrated with the wind turbine tower and the frame platform, primarily serving as an operating platform for routine inspections and maintenance of the turbine equipment. The baseplate assembly comprises a symmetrically arranged left baseplate assembly 1 and a right baseplate assembly 2, with their facing inward ends connected by bolts.

[0045] Both the left and right floor assemblies 1 and 2 include a peripheral edge beam 8, within which a car panel 9 is mounted. Adjacent edge beams 8 are connected and secured by reinforcing angle fittings. The edge beams 8 are provided with slots for mounting the car panels 9. The slots are designed to precisely mate with the car panels 9. During assembly, the car panels 9 are fitted into the slots, and then holes are punched and riveted into the edge beams 8 to secure them.

[0046] The floor assembly's deck 9 is constructed from 200mm-wide profiled panels, joined together at the male and female ends, with the splicing direction aligned with the profile extrusion direction. A reinforcing crossbeam 10 is installed on the interior of the deck 9 to increase the overall strength and compression resistance of the left and right floor assemblies. The left and right floor assemblies are the primary operating areas for maintenance and repair of wind turbine equipment, so their overall strength is paramount.

[0047] A wind tower mounting hole 11 is provided on the bottom plate assembly, through which the wind tower enters the interior of the nacelle.

[0048] The front panel assembly 3 is arranged at an angle to the bottom panel assembly and consists of two symmetrically positioned parts to facilitate assembly with the electromechanical equipment. Both the left and right parts of the front panel assembly 3 include a peripheral side beam 8, within which a box panel 9 is mounted, and within which a reinforcing crossbeam 10 is mounted.

[0049] A center circle 12 is provided in the middle of the front plate assembly 3 . The center circle 12 is the center of the fan blade shaft, and the blade shaft passes through the center circle 12 and enters the interior of the nacelle cover.

[0050] The left side panel assembly 4 and the right side panel assembly 5 are symmetrically arranged. The left side panel assembly 4 and the right side panel assembly 5 are composed of two parts, the upper and lower parts. Both structures include a side beam 8 forming a circle. A box plate 9 is installed in the circle side beam 8. A reinforcing cross beam 10 is installed on the inner surface of the upper structure box plate 9, and two reinforcing cross beams 10 are installed on the inner surface of the lower structure box plate 9.

[0051] Operational safety hanging points are installed on the front inner surfaces of the left side panel assembly 4 and the right side panel assembly 5. The safety hanging points serve as hanging points for safety belts when performing equipment maintenance on the front panel assembly 3 or blade maintenance.

[0052] The rear plate assembly 6 is arranged parallel to the front plate assembly 3 , and the rear plate assembly 6 includes a peripheral side beam 8 , a box plate 9 is installed in the peripheral side beam 8 , and a reinforcing cross beam 10 is installed on the inner surface of the box plate 9 .

[0053] Two observation windows 14 are provided on the rear plate assembly 6 .

[0054] The top plate assembly 7 is assembled from five small assemblies, namely top plate assembly 1 701, top plate assembly 2 702, top plate assembly 3 703, top plate assembly 4 704 and top plate assembly 5 705. Each small assembly includes four peripheral beams 8, and the four peripheral beams 8 are inserted with box plates 9, and the inner surface of the box plates 9 is installed with reinforcing cross beams 10.

[0055] The roof assembly 7 is designed as a whole to have a high middle and low sides structure, which is similar to the roof style of a tiled house.

[0056] A maintenance access 15 is provided on the deck 9 of roof assembly 1 (701), allowing easy access to the top of the nacelle via a ladder for maintenance. Skylight windows 14 are also provided on the deck 9 of roof assembly 2 (702), roof assembly 3 (703), and roof assembly 4 (704), facilitating maintenance and inspection. Safety hook points are provided on the outside of the roof assembly 7, allowing for secure attachment of the safety belt when exiting the cabin for maintenance.

[0057] Drain holes 13 are provided on the bottom side beams 8 of the front panel assembly 3, the bottom side beams 8 of both the upper and lower assemblies of the left side panel assembly 4, the bottom side beams 8 of both the upper and lower assemblies of the right side panel assembly 5, and the bottom side beams 8 of the rear panel assembly 6. Even if water seepage occurs in extreme weather conditions, the water will flow through the profile grooves, through the side beams 8, and out to the outside of the nacelle, ensuring the safety of the equipment inside the cabin.

[0058] The compartment panels 9 of the front panel assembly 3, the left side panel assembly 4, the right side panel assembly 5 and the rear panel assembly 6 are all assembled in sequence by a plurality of single-layer compartment panel modules 901, and the single-layer compartment panel modules 901 are made of high-strength aluminum alloy.

[0059] The single-layer panel module 901 is provided with a single-layer panel male end 902 and a single-layer panel female end 903 on both sides along the length direction. The single-layer panel male end 902 and the single-layer panel female end 903 are both located on the side close to the inner cavity of the cabin cover. Adjacent single-layer panel modules 901 are interlocked by splicing the single-layer panel male end 902 and the single-layer panel female end 903. A sealed cavity is formed at the splicing joint, and the cavity is filled with sealant to ensure the sealing between adjacent single-layer panel modules 901.

[0060] A connecting plate 904 is provided on the side of the male end 902 of the single-layer compartment plate. The function of the connecting plate 904 is to cooperate with the hexagonal bolts to fix the reinforcing beam 10 or other components.

[0061] The front panel assembly 3, the left side panel assembly 4, the right side panel assembly 5 and the compartment panel 9 of the rear panel assembly 6 are not maintenance work areas and only bear a certain wind pressure, so they are designed as a single-layer profile style. This design structure is used to achieve the overall lightweight and economical performance of the cabin cover.

[0062] The compartment panel 9 of the top panel assembly 7 is formed by sequentially splicing together a plurality of double-layer compartment panel modules 905 , and the double-layer compartment panel modules 905 are made of high-strength aluminum alloy.

[0063] The upper surface of the double-layer compartment panel module 905 is provided with a strip-shaped protrusion 906, which is arranged along the length direction of the double-layer compartment panel module 905. The length of the strip-shaped protrusion 906 is less than the length of the double-layer compartment panel module 905. The main functions of the strip-shaped protrusion 906 are to prevent slipping during operation and to strengthen the compartment panel 9.

[0064] An inner notch 907 is provided in the lower surface of the double-layer panel module 905 , and the inner notch 907 is used to cooperate with T-bolts to fix the reinforcing beam 10 or other components.

[0065] The double-layer panel module 905 is provided with a double-layer panel male end 908 and a double-layer panel female end 909 on both sides along the length direction. An interlocking groove 9010 is provided above the double-layer panel male end 908, and an interlocking protrusion 9011 is provided above the double-layer panel female end 909. The interlocking groove 9010 and the interlocking protrusion 9011 are located on the side away from the inner cavity of the cabin cover.

[0066] The double-layer panel male end 908 and the double-layer panel female end 909 between adjacent double-layer panel modules 905 cooperate to form an interlock, and the interlocking protrusion 9011 and the interlocking groove 9010 cooperate to form an interlock. Through multi-turn card slot assembly and splicing, it is ensured that the top plate assembly 7 has excellent sealing performance and overall stability.

[0067] The assembly and installation sequence of the nacelle cover of the present invention is:

[0068] (1) Assemble and fix the upper and lower parts of the left side panel assembly 4 to form the left side panel assembly 4;

[0069] (2) Assemble and fix the upper and lower parts of the right side assembly 5 to form the right side assembly 5;

[0070] (3) Combine and fix the left bottom plate assembly 1 and the left side panel assembly 4 to form an L-shaped left half side panel;

[0071] (4) Hoist the L-shaped left half side panel as a whole to the left side of the wind turbine platform, and connect and fix the left bottom plate assembly 1 and the left side panel assembly 4 to the left side of the wind tower platform body in sequence;

[0072] (5) Combine and fix the right bottom plate assembly 2 and the right side panel assembly 5 to form an L-shaped right half side panel;

[0073] (6) Hoist the L-shaped right half side panel as a whole to the right side of the wind turbine platform, and connect and fix the right bottom plate assembly 2 and the right side panel assembly 5 to the wind tower platform in sequence;

[0074] (7) Connect the bottom plate assembly left 1 and the bottom plate assembly right 2 with bolts to form the bottom plate assembly, and then connect the bottom assembly to the wind tower platform as a whole and fix them;

[0075] (8) Assemble and fix top plate assembly 1 701, top plate assembly 2 702, top plate assembly 3 703, top plate assembly 4 704 and top plate assembly 5 705 in sequence to form top plate assembly 7;

[0076] (9) Hoist the assembled top plate assembly 7 as a whole above the left side enclosure assembly 4 and the right side enclosure assembly 5, adjust it to a suitable position and fix it, and connect and fix the top plate assembly 7 to the wind tower platform;

[0077] (10) Assemble the left and right parts of the front panel assembly 3;

[0078] (11) Hoist the front plate assembly 3 as a whole and adjust it to the appropriate position, combine it with the bottom plate assembly left 1, bottom plate assembly right 2, and top plate assembly 7 into one and fix them, and connect and fix the front plate assembly 3 to the wind tower platform;

[0079] (12) The rear plate assembly 6 is hoisted as a whole and adjusted to a suitable position. It is combined with the bottom plate assembly left 1, the bottom plate assembly right 2, and the top plate assembly 7 and fixed together. The rear plate assembly 6 is connected and fixed to the wind tower platform.

[0080] The entire nacelle is assembled, primarily with bolts and slotted connections, making it easy to install, simple, safe, and reliable. It is transported in large pieces, resulting in higher efficiency.

[0081] The foregoing is an example of the best mode of carrying out the present invention. Any portion not described in detail herein is common knowledge within the skill of one of ordinary skill in the art. The scope of protection of the present invention is determined by the claims. Any equivalent transformation based on the technical teachings of the present invention is also within the scope of protection of the present invention.

Claims

1. A novel wind turbine nacelle structure for a wind turbine generator set, characterized by: The invention comprises a bottom plate assembly, a front plate assembly (3), a left side panel assembly (4), a right side panel assembly (5), a rear plate assembly (6) and a top plate assembly (7); the front plate assembly (3), the left side panel assembly (4), the right side panel assembly (5) and the rear plate assembly (6) are connected to the top of the bottom plate assembly by bolts, and the top plate assembly (7) is connected to the top of the front plate assembly (3), the left side panel assembly (4), the right side panel assembly (5) and the rear plate assembly (6) by bolts; the front plate assembly (3), the left side panel assembly (4), the right side panel assembly (5) and the rear plate assembly (6) are fixedly connected to each other by snap-fitting T-bolts. The bottom plate assembly, the front plate assembly (3), the left side panel assembly (4), the right side panel assembly (5), the rear plate assembly (6) and the top plate assembly (7) all include side beams (8) forming a circle, and a compartment plate (9) formed by modular splicing is inserted into the circle side beams (8); the compartment plates (9) of the front plate assembly (3), the left side panel assembly (4), the right side panel assembly (5) and the rear plate assembly (6) are all formed by sequentially splicing a plurality of single-layer compartment plate modules (901), and the compartment plate (9) of the top plate assembly (7) is formed by sequentially splicing a plurality of double-layer compartment plate modules (905); The top plate assembly (7) is assembled from five sub-assemblies, namely, top plate assembly 1 (701), top plate assembly 2 (702), top plate assembly 3 (703), top plate assembly 4 (704), and top plate assembly 5 (705). Each sub-assembly includes four peripheral beams (8), and compartment plates (9) are inserted into the four peripheral beams (8). A reinforcing crossbeam (10) is installed on the inner surface of the compartment plate (9). The single-layer panel module (901) is provided with a single-layer panel male end (902) and a single-layer panel female end (903) on both sides along the length direction. The single-layer panel male end (902) and the single-layer panel female end (903) are both located on a side close to the inner cavity of the cabin cover. Adjacent single-layer panel modules (901) are interlocked by splicing the single-layer panel male end (902) and the single-layer panel female end (903). A sealed cavity is formed at the splicing joint, and the cavity is filled with sealant. A connecting plate (904) is provided on the side of the single-layer panel male end (902). The double-layer panel module (905) is provided with a double-layer panel male end (908) and a double-layer panel female end (909) on both sides along the length direction, an interlocking groove (9010) is provided above the double-layer panel male end (908), and an interlocking protrusion (9011) is provided above the double-layer panel female end (909), and the interlocking groove (9010) and the interlocking protrusion (9011) are located on the side away from the inner cavity of the cabin cover; the double-layer panel male end (908) and the double-layer panel female end (909) between adjacent double-layer panel modules (905) cooperate to form an interlock, and the interlocking protrusion (9011) and the interlocking groove (9010) cooperate to form an interlock.

2. A novel wind turbine nacelle cover structure for a wind turbine generator set according to claim 1, characterized in that: The upper surface of the double-layer compartment panel module (905) is provided with a strip-shaped protrusion (906), which is arranged along the length direction of the double-layer compartment panel module (905), and the length of the strip-shaped protrusion (906) is less than the length of the double-layer compartment panel module (905); the lower surface of the double-layer compartment panel module (905) is provided with an inner surface notch (907).

3. The novel wind turbine nacelle cover structure for a wind turbine generator set according to claim 1, characterized in that: The base plate assembly comprises a symmetrically arranged left base plate assembly (1) and a right base plate assembly (2), wherein the inner ends of the left base plate assembly (1) and the right base plate assembly (2) facing each other are connected by bolts; the left base plate assembly (1) and the right base plate assembly (2) each comprise a peripheral side beam (8), wherein a box plate (9) is installed in the peripheral side beam (8), and adjacent side beams (8) are connected and fixed by reinforcing angle pieces, and a plug-in slot for installing the box plate (9) is provided on the side beam (8); and a reinforcing cross beam (10) is installed on the inner surface of the box plate (9).

4. The novel wind turbine nacelle cover structure for a wind turbine generator set according to claim 1, characterized in that: The front plate assembly (3) is arranged at a certain angle to the bottom plate assembly. The front plate assembly (3) is composed of two parts that are symmetrically arranged on the left and right. The left and right parts of the front plate assembly (3) both include side beams (8) that form a circle. A box plate (9) is installed in the circle side beam (8). A reinforcing cross beam (10) is installed on the inner surface of the box plate (9). A center circle (12) is provided in the middle of the front plate assembly (3).

5. The novel wind turbine nacelle cover structure for a wind turbine generator set according to claim 1, characterized in that: The left side enclosure assembly (4) and the right side enclosure assembly (5) are symmetrically arranged. The left side enclosure assembly (4) and the right side enclosure assembly (5) are composed of two parts, an upper part and an lower part. The two parts of the structure include a side beam (8) that forms a circle. A box plate (9) is installed in the circle side beam (8). A reinforcing cross beam (10) is installed on the inner surface of the upper structure box plate (9), and two reinforcing cross beams (10) are installed on the inner surface of the lower structure box plate (9).

6. The novel wind turbine nacelle cover structure for a wind turbine generator set according to claim 1, characterized in that: The rear plate assembly (6) is arranged in parallel with the front plate assembly (3), and the rear plate assembly (6) includes a peripheral side beam (8), a box plate (9) is installed in the peripheral side beam (8), and a reinforcing cross beam (10) is installed on the inner surface of the box plate (9); two observation windows (14) are provided on the rear plate assembly (6).

7. The novel wind turbine nacelle cover structure for a wind turbine generator set according to claim 1, characterized in that: A drainage hole (13) is provided on the bottom side beam (8) of the front plate assembly (3), a drainage hole (13) is provided on the bottom side beams (8) of the upper and lower assemblies of the left side enclosure assembly (4), a drainage hole (13) is provided on the bottom side beams (8) of the upper and lower assemblies of the right side enclosure assembly (5), and a drainage hole (13) is provided on the bottom side beam (8) of the rear plate assembly (6).

Images