Wind generating set cover body comprising polydicyclopentadiene shell and wind driven generator

Abstract

The wind generating set cover body comprises a polydicyclopentadiene shell, the wind generating set cover body is used for at least partially shielding the wind generating set, and the wind generating set cover body comprises the shell and a framework. The shell is a polydicyclopentadiene shell, and the shell comprises a plurality of shell modules. The framework is a metal framework and comprises a plurality of beams, and the beams are connected to form a criss-cross grid type framework. The connecting structure between the beams is at least one of welding connection, bolt connection or rivet connection. At least part of the shell modules in the multiple shell modules are bonded with the multiple beams. At least part of the shell modules are connected with the beams through bolts or rivets.

Description

Technical Field

[0001] This application relates to the technical field of wind turbines, and particularly to a wind turbine nacelle cover and a wind turbine including a poly (dicyclopentadiene) shell. Background Art

[0002] The wind turbine nacelle cover (including the fairing and the nacelle cover) is an external protection structure of a large wind turbine. As an important component of the wind turbine, it shelters various internal devices and electrical components of the wind turbine, enabling the wind turbine to operate normally in harsh weather conditions and protecting the internal devices and staff from external environmental factors such as wind, snow, rain, smoke, and ultraviolet radiation.

[0003] Based on the load-bearing requirements of the wind turbine, its nacelle cover is usually required to be light in weight, high in strength, and large in load-bearing capacity. Currently, the nacelle covers of wind turbines are basically made of composite materials such as glass fiber and resin, and a small number of nacelle covers are made of metal materials.

[0004] The wind turbine nacelle made of composite materials such as glass fiber is difficult to recycle after reaching its design life, and it is easy to generate a large amount of solid waste that is difficult to handle, seriously polluting the environment. The production process of composite materials such as glass fiber has a low degree of automation and relies heavily on manual production, making it difficult to form modular production of its nacelle and the production process is likely to cause harm to the physical health of workers.

[0005] Due to the increasing single-unit capacity of wind turbines, the single-unit volume is also becoming larger and larger. However, road and railway transportation are easily restricted by road conditions such as excessive height and width, making transportation very difficult and costly.

[0006] The wind turbine nacelle made of metal materials has good stiffness, but its weight is large, making it difficult to meet the weight requirements of the nacelle for large wind turbines. Utility Model Content

[0007] In view of the state of the above-mentioned prior art, this application is made. The purpose of this application is to provide a wind turbine nacelle cover including a poly (dicyclopentadiene) shell to improve the comprehensive performance of the wind turbine nacelle cover.

[0008] This application also provides a wind turbine including the above-mentioned wind turbine nacelle cover with a poly (dicyclopentadiene) shell.

[0009] This application provides a wind turbine nacelle cover including a poly (dicyclopentadiene) shell for at least partially sheltering a wind turbine, which includes a shell and a framework.

[0010] The shell is a poly (dicyclopentadiene) shell, and the shell includes a plurality of shell modules.

[0011] The framework is a metal framework, and the framework includes a plurality of beams. The plurality of beams are connected to form a criss-cross grid-shaped framework. The connection structure between the beams is at least one of welded connection, bolt connection, or rivet connection.

[0012] At least some of the plurality of outer shell modules are adhesively bonded to the plurality of beams.

[0013] At least some of the plurality of outer shell modules are bolt-connected or rivet-connected to the plurality of beams.

[0014] In at least one possible embodiment, the framework integrally forms a cubic structure.

[0015] The plurality of beams include main beams, side beams, auxiliary beams, and secondary beams.

[0016] The main beams are disposed around at least a partial circumferential region of the framework.

[0017] The side beams are disposed in the edge regions of the outer shell modules.

[0018] The auxiliary beams are disposed around at least a partial circumferential region of the framework, and the auxiliary beams are spaced apart from the main beams. The cross-sectional dimension of the main beams is larger than the cross-sectional dimension of the auxiliary beams.

[0019] The secondary beams are disposed around at least a partial circumferential region of the framework, and the plane in which the secondary beams are located is perpendicular to the plane in which the main beams are located.

[0020] In at least one possible embodiment, the cross-sectional dimension of the main beams is larger than the cross-sectional dimensions of the side beams and the secondary beams.

[0021] In at least one possible embodiment, the thickness of the outer shell module is 2 to 10 millimeters.

[0022] In at least one possible embodiment, at least some of the outer shell modules have the same shape and size to facilitate modular production and repair and replacement.

[0023] In at least one possible embodiment, the outer shell is a cuboid outer shell, which includes an upper cover, two side plates, a bottom plate, a front plate, and a tail plate.

[0024] In at least one possible embodiment, at least some of the edges of the outer shell modules form edge bending portions.

[0025] The edge bending portions extend towards the inner side of the wind turbine generator housing.

[0026] At least some of the edge bending portions overlap with the side surfaces of the beams to pass through the bolts or the rivets, thereby connecting the outer shell and the framework.

[0027] In at least one possible implementation, the wind turbine cover including the polydicyclopentadiene housing further includes a connecting member,

[0028] At least a partial region of the connecting member overlaps with the edge bending portion,

[0029] At least a part of the connecting member and the beam are respectively disposed on two side surfaces of the edge bending portion, and the overlapping connecting member, the edge bending portion and the beam are connected by bolts or rivets.

[0030] In at least one possible implementation, at least a part of the edge bending portions of two adjacent housing modules are respectively disposed on two side surfaces of a beam; or, one or two edge bending portions that are fitted together are clamped by two beams,

[0031] The edge bending portion and the beam that are fitted and disposed are connected by bolts or rivets.

[0032] This application also provides a wind turbine, which includes:

[0033] A wind turbine; and the above-mentioned wind turbine cover including a polydicyclopentadiene housing,

[0034] The wind turbine cover at least partially shields the wind turbine.

[0035] The wind turbine cover including a polydicyclopentadiene housing and the wind turbine provided by this application use polydicyclopentadiene as the main material of the housing of the cover. Compared with the wind turbine cover made of traditional composite materials such as glass fiber, it has better environmental protection performance, smaller density, excellent toughness and impact resistance. Combining the housing of polydicyclopentadiene material with a metal skeleton can improve the strength and stiffness of the wind turbine cover, so that the wind turbine cover meets the strength and stiffness requirements of its working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic structural diagram of a wind turbine cover according to an embodiment of this application.

[0037] Figure 2 It is a schematic structural diagram of a skeleton according to an embodiment of this application.

[0038] Figure 3 It is a schematic structural diagram of another wind turbine cover according to an embodiment of this application.

[0039] Figure 4 It is a schematic internal structural diagram of a wind turbine cover according to an embodiment of this application.

[0040] Figure 5 Schematic diagram of the connection structure between the first housing and the skeleton according to an embodiment of the present application.

[0041] Figure 6 Schematic diagram of the connection structure between the second housing and the skeleton according to an embodiment of the present application.

[0042] Figure 7 Schematic diagram of the connection structure between the third housing and the skeleton according to an embodiment of the present application.

[0043] Figure 8 Schematic diagram of the connection structure between the fourth housing and the skeleton according to an embodiment of the present application.

[0044] Figure 9 Schematic diagram of the connection structure between the fifth housing and the skeleton according to an embodiment of the present application.

[0045] Figure 10 Schematic diagram of the welded connection structure of the skeleton according to an embodiment of the present application.

[0046] Description of reference numerals

[0047] 100 Housing

[0048] 110 Housing module

[0049] 111 Edge bending part

[0050] 112 Protruding clamping part

[0051] 200 Skeleton

[0052] 210 Beam

[0053] 211 Main beam

[0054] 212 Side beam

[0055] 213 Auxiliary beam

[0056] 214 Secondary beam

[0057] 300 Connector

[0058] 400 Rivet

[0059] 500 Weld seam Detailed implementation manners

[0060] The exemplary embodiments of the present application will be described below with reference to the accompanying drawings. It should be understood that these specific descriptions are only used to teach those skilled in the art how to implement the present application, rather than to exhaust all possible ways of the present application, nor to limit the scope of the present application.

[0061] Embodiments of the present application provide a wind turbine nacelle cover (hereinafter, sometimes simply referred to as "wind turbine nacelle cover") including a polydicyclopentadiene (PDCPD) outer shell, for at least partially shielding a wind turbine. In particular, the wind turbine nacelle cover can be a nacelle cover or a fairing of a wind turbine. Hereinafter, a possible structure of the wind turbine nacelle cover will be shown taking the nacelle cover as an example.

[0062] As Figure 1 and Figure 3 shown, the wind turbine nacelle cover can include an outer shell 100 and a skeleton 200. The outer shell 100 can be a polydicyclopentadiene (PDCPD) outer shell, and the outer shell 100 can include a plurality of outer shell modules 110. The shapes and sizes of at least some of the outer shell modules 110 can be the same to facilitate the modular production and repair and replacement of the outer shell modules 110. Exemplarily, the outer shell 100 can be a cuboid outer shell, which can include an upper cover, two side plates, a bottom plate, a front plate and a tail plate, and each part can include at least one outer shell module 110. In another example, when the wind turbine nacelle cover is a fairing, the outer shell 100 and the skeleton 200 can also be of other shapes. For example, the outer shell 100 can include a partial sphere or a partial ellipsoid.

[0063] Preferably, the thickness of the outer shell module 110 can be 2 to 10 millimeters. More preferably, the thickness of the outer shell module 110 can be 4 to 5 millimeters. The thickness of the foregoing outer shell module 110 can meet the strength requirements of the wind turbine and make the total weight of the outer shell 100 relatively light. It can be understood that the thicknesses of the various parts of the outer shell 100 are not exactly the same, and the thickness of the above-mentioned outer shell module 110 can be the average thickness. Larger thicknesses can be adopted for some positions of the outer shell 100 or some of the outer shell modules 110 due to local stress and other reasons.

[0064] As Figure 2 and Figure 4 shown, the skeleton 200 can be a metal skeleton, especially a steel (carbon steel) skeleton. The skeleton 200 can include a plurality of beams 210. The plurality of beams 210 can be connected to form a criss-cross grid-like structure, that is, the skeleton 200 can be a grid-like skeleton. The connection structure between the beams 210 can be at least one of a welded connection, a bolt connection or a rivet connection. That is, two or more beams 210 can be connected using one of the above connection structures, or a combination of the above multiple connection structures can be used for connection.

[0065] Exemplarily, as Figure 10 shown, the plurality of skeletons 210 can be connected in a welded connection form, and weld seams 500 can be formed between the welded skeletons 210.

[0066] Preferably, the overall framework 200 can form a square framework (including a quasi-square framework). It can be understood that the specific material, model, parameters, etc. of the beams 210 can be determined according to the specific requirements of the wind turbine. Exemplarily, multiple beams 210 can include rectangular square tubes of 100*50*5 and 70*50*3. It can be understood that using a metal framework compensates for the relatively low strength and stiffness of the polydicyclopentadiene shell, enabling the overall performance of the wind turbine cover to meet the requirements.

[0067] At least some of the multiple housing modules 110 can be bonded to the multiple beams 210. Preferably, bonding connections are formed at all positions where the housing 100 fits with the framework 200, so that the housing 100 and the framework 200 are firmly connected. The housing 100 and the framework 200 can also be connected using bolts or rivets, that is, at least some of the multiple housing modules 110 can be connected to the multiple beams 210 using bolts or rivets.

[0068] As Figure 2 shown, the multiple beams 210 of the framework 200 can include main beams 211, side beams 212, auxiliary beams 213, and secondary beams 214. Among them, the main beams 211 can be arranged around at least part of the circumferential area of the framework 200. The side beams 212 can be arranged in the edge area of the housing module 110. Especially when the housing 100 is a cube, the side beams 212 can be arranged on the edges of the cube housing. The auxiliary beams 213 can be arranged around at least part of the circumferential area of the framework 200, and the auxiliary beams 213 are arranged at intervals with the main beams 211. The cross-sectional dimension of the main beams 211 can be larger than that of the auxiliary beams 213. The secondary beams 214 can be arranged around at least part of the circumferential area of the framework 200, and the plane where the secondary beams 214 are located can be perpendicular to the plane where the main beams 211 are located. It can be understood that the circumferential direction of the framework 200 can include the circumferential direction along its length direction, the circumferential direction along its width direction, and the circumferential direction along its thickness direction. Here, only the relative positional relationship between the main beams 211, beams 213, and secondary beams 214 is defined.

[0069] Preferably, the cross-sectional dimension of the main beams 211 can be larger than the cross-sectional dimensions of the side beams 212, the auxiliary beams 213, and the secondary beams 214. It can be understood that the cross-sectional dimension here can include the cross-sectional area when the beam 210 is a rectangular tube, or the pipe diameter when the beam 210 is a circular tube, etc.

[0070] Furthermore, as Figure 5 and Figure 6As shown, an edge bending portion 111 can be formed at the edge of at least a part of the outer shell module 110, and the edge bending portion 111 can extend toward the inner side of the wind turbine housing. At least a part of the edge bending portion 111 can be attached to (overlap with) the side surface of the beam 210 for passing bolts or rivets to connect the outer shell module 110 and the edge bending portion 111, and thus the outer shell 100 and the skeleton 200 can be connected. Here, the setting direction of the bolts or rivets can be perpendicular to the plane of the edge bending portion 111.

[0071] Preferably, as Figure 5 shown, the edge bending portions 111 of at least a part of two adjacent outer shell modules 110 can be respectively arranged on two side surfaces of a beam 210. Alternatively, one or two edge bending portions 111 that are attached together are clamped by two beams 210. The attached edge bending portion 111 and the beam 210 are connected by bolts or rivets.

[0072] Preferably, as Figure 6 shown, the wind turbine housing can further include a connecting member 300, and at least a part of the connecting member 300 can overlap with the edge bending portion 111. At least a part of the connecting member 300 and the beam 210 can be respectively arranged on two side surfaces of the edge bending portion 111. The attached (or partially overlapped) connecting member 300, edge bending portion 111, and beam 210 can be connected by bolts or rivets. The connecting member 300 can be made of metal to improve the stability and stiffness of the connection structure, making the housing structure of the wind turbine more stable.

[0073] It can be understood that the above two connection methods between the outer shell module 110 and the beam 210 can tightly connect the outer shell 100 and the skeleton 200 to meet the working environment requirements of the wind turbine. Two adjacent outer shell modules 110 can also be connected by adhesive connection, bolt connection, and rivet connection. In particular, the edge bending portions 111 of two adjacent outer shell modules 110 can be connected by adhesive connection, bolt connection, and rivet connection. Two adjacent outer shell modules 110 can also form partial overlap, and the overlapped part can be connected by at least one of adhesive connection, bolt connection, and rivet connection.

[0074] Furthermore, the outer shell 100 and the skeleton 200 in this embodiment can also be connected by a variety of connection methods.

[0075] As Figure 7 shown, the outer shell module 110 in the lower left of Figure 7 can form two edge bending portions 111, and the two edge bending portions 111 can form a spacing to accommodate the beam 210. Located in Figure 7The outer shell module 110 in the lower right can be formed with an edge bending portion 111, which can be attached to an edge bending portion 111 (located on the right side) of the lower left outer shell module 110 mentioned above. The two connecting members 300 can be respectively abutted against the left edge bending portion of the lower left outer shell module and the edge bending portion of the lower right edge module. Then, bolts or rivets are used to penetrate the above structure in a direction perpendicular to the edge bending portion, thereby connecting the outer shell module 110 and the beam 210.

[0076] As Figure 8 shown, a protruding clamping portion 112 can also be formed in the middle of an outer shell module 110. The distance between two adjacent protruding clamping portions 112 can accommodate and clamp the beam 210. Bolts or rivets can penetrate the structure in a direction perpendicular to the protruding clamping portion 112 to connect the beam 210 and the outer shell module 110.

[0077] As Figure 9 shown, the rivet 410 or bolt can pass through the outer shell module 110 perpendicular (or approximately perpendicular) to the main plane of the outer shell module 110 and connect with the beam 210 inside it, thereby connecting the outer shell module 110 and the beam 210.

[0078] The embodiment of the present application also provides a wind turbine, which can include a wind turbine generator set and the wind turbine generator set cover including the above-mentioned polydicyclopentadiene outer shell. The wind turbine generator set cover at least partially shields the wind turbine generator set.

[0079] The following briefly introduces some advantages of using polydicyclopentadiene (PDCPD) to make the outer shell of the wind turbine generator set cover.

[0080] Polydicyclopentadiene has a small density, balanced stress in all directions, strong toughness and anti-impact load performance. The expected life of polydicyclopentadiene is more than 25 years. After its life expires, it can be processed again into powder and granulated, and can also be recycled as a filler for thermoplastics (such as polypropylene PP and polyethylene PE). Moreover, the outer shell made of polydicyclopentadiene can also be subjected to anaerobic pyrolysis to generate activated carbon and fuel oil; or generate alkane fuel gas and carbon black through low-temperature anaerobic catalytic pyrolysis. Or, the outer shell made of polydicyclopentadiene can also be used as a high-energy solid fuel for incineration in a waste power plant (the calorific value of the outer shell made of polydicyclopentadiene is about 1.5 times that of standard coal), and its combustion products are mainly carbon dioxide and water, with less additional pollution. Through the above various recycling methods, the outer shell made of polydicyclopentadiene can achieve 100% harmless recycling.

[0081] The outer shell module of poly(dicyclopentadiene) is suitable for mechanized automatic production, which can ensure product consistency and greatly improve production efficiency. During the production process of the outer shell module of poly(dicyclopentadiene), it is relatively unlikely to generate solid waste, waste gas, dust, etc. The impact on the physical health of workers in its production environment is significantly reduced compared to that of composite materials such as glass fiber, and the adverse impact on the environment is significantly reduced. During the production process, the total energy consumption of the poly(dicyclopentadiene) material throughout the production process is <5000 Kcal / kg (kcal per kilogram), which is approximately 1 / 2 of the energy consumption of polypropylene production. The carbon footprint of the poly(dicyclopentadiene) material is approximately 0.8 kg CO2 / kg (kilogram of carbon dioxide per kilogram), far lower than 2.5 kg CO2 / kg of the glass fiber material. Using poly(dicyclopentadiene) is a very effective means of carbon emission reduction. The production process of poly(dicyclopentadiene) material products has a full nitrogen closed-loop protection, and only a small amount of dicyclopentadiene (DCPD) remains on the surface of the product and will volatilize and release. The released dicyclopentadiene (DCPD) volatile matter is easily oxidized rapidly by the atmosphere and can be absorbed as an organic nutrient for plants.

[0082] The following briefly describes some beneficial effects of the above embodiments of the present application.

[0083] The wind turbine nacelle cover including a poly(dicyclopentadiene) outer shell and the wind turbine using poly(dicyclopentadiene) as the main material of the outer shell of the nacelle provided by the embodiments of the present application have more excellent environmental protection performance, smaller density, excellent toughness and impact resistance compared to the wind turbine nacelle covers made of traditional composite materials such as glass fiber. And the poly(dicyclopentadiene) outer shell can be manufactured modularly, is easy for automated production and is convenient for repairing damaged wind turbine nacelle covers. Moreover, the modularly produced outer shell modules can also save mold costs and transportation costs. Combining the outer shell of the poly(dicyclopentadiene) material with a metal skeleton can improve the strength and stiffness of the wind turbine nacelle cover.

[0084] It can be understood that in the present application, when the number of components or members is not specifically limited, the number can be one or more, and here the plurality means two or more. For the case where the number of components or members shown in the drawings and / or described in the specification is a specific number such as two, three, four, etc., this specific number is usually exemplary rather than restrictive, and it can be understood as a plurality, that is, two or more. However, this does not mean that the present application excludes the case of one.

[0085] It should be understood that the above embodiments are merely exemplary and are not used to limit the present application. Those skilled in the art can make various modifications and changes to the above embodiments under the teaching of the present application without departing from the scope of the present application.

Claims

1. A wind turbine nacelle cover including a poly dicyclopentadiene outer shell for at least partially shielding a wind turbine, characterized in that, It includes a housing and a framework, the housing is a poly (dicyclopentadiene) housing, and the housing includes a plurality of housing modules, the framework is a metal framework, the framework includes a plurality of beams, and the plurality of beams are connected to form a crisscross grid-shaped framework. The connection structure between the beams is at least one of welded connection, bolt connection or rivet connection, at least some of the plurality of housing modules are bonded to the plurality of beams, at least some of the plurality of housing modules are bolt-connected or riveted to the plurality of beams.

2. The wind turbine nacelle cover including a polydicyclopentadiene outer shell according to claim 1, characterized in that, The framework as a whole forms a cubic structure, the plurality of beams include main beams, side beams, auxiliary beams and secondary beams, the main beams are arranged around at least part of the circumferential area of the framework, the side beams are arranged in the edge area of the housing module, the auxiliary beams are arranged around at least part of the circumferential area of the framework, and the auxiliary beams are arranged at intervals with the main beams. The cross-sectional dimension of the main beam is larger than that of the auxiliary beam, the secondary beams are arranged around at least part of the circumferential area of the framework, and the plane where the secondary beams are located is perpendicular to the plane where the main beams are located.

3. The wind turbine nacelle cover including a polydicyclopentadiene outer shell according to claim 2, wherein, The cross-sectional dimension of the main beam is larger than the cross-sectional dimensions of the side beam and the secondary beam.

4. The wind turbine cover including a polydicyclopentadiene outer shell according to claim 1, characterized in that, The thickness of the housing module is 2 to 10 millimeters.

5. The wind turbine nacelle cover including a polydicyclopentadiene outer shell according to claim 1, characterized in that, At least some of the housing modules have the same shape and size to facilitate modular production and maintenance replacement.

6. The wind turbine nacelle housing including a polydicyclopentadiene outer shell according to claim 1, wherein, The housing is a cuboid housing, which includes an upper cover, two side plates, a bottom plate, a front plate and a tail plate.

7. The wind turbine nacelle housing including a polydicyclopentadiene outer shell according to claim 1, characterized in that, At least part of the edges of the housing modules form edge bending parts, the edge bending parts extend towards the inner side of the wind turbine generator housing, at least part of the edge bending parts overlap with the side surfaces of the beams to pass through the bolts or the rivets, so as to connect the housing and the framework.

8. The wind turbine nacelle cover including a polydicyclopentadiene outer shell according to claim 7, characterized in that, It further includes a connecting piece, at least part of the area of the connecting piece overlaps with the edge bending part, at least part of the connecting piece and the beam are respectively arranged on the two side surfaces of the edge bending part, and the connecting piece, the edge bending part and the beam that are arranged in a fitting manner are connected by bolts or rivets.

9. The wind turbine generator housing including a poly (dicyclopentadiene) housing according to claim 7, wherein, at least part of the edge bending parts of two adjacent housing modules are respectively arranged on the two side surfaces of a beam; or, one or two edge bending parts that are fitted together are clamped by two beams, the edge bending part and the beam that are arranged in a fitting manner are connected by bolts or rivets.

10. A wind turbine, characterized in that, It includes: a wind turbine generator; and the wind turbine generator housing including a poly (dicyclopentadiene) housing according to any one of claims 1 to 9, the wind turbine generator housing at least partially shields the wind turbine generator.

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