A container-type combined structure of wind power generation blades and tower and an assembly method thereof

Abstract

A container-type combined structure and a combined method of wind turbine blades and towers, wherein the combined structure includes multiple sets of wind turbine blades and multiple sets of wind turbine towers, each set of wind turbine towers has tower sections that are sequentially connected according to size, and at least a portion of the blade bodies of the multiple sets of wind turbine blades are stacked on top of each other to form a transport body with the connected wind turbine towers, and transport end frames are provided at both ends of the transport body. The present invention also includes a container-type combined method of wind turbine blades and towers. On the one hand, the present invention designs the structures of wind turbine towers and blade bodies so that they can be stacked and assembled in the most compact manner, which can greatly improve space utilization and realize sea and land transportation in the form of containers; on the other hand, by making a reasonable spatial layout of tower sections and wind turbine blades, multiple sets of wind turbine towers and wind turbine blades can be transported at one time, avoiding multiple round trips for transportation, and greatly improving transportation efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of wind power blades, and in particular to a container-type combined structure of a wind power blade and a tower and an assembly method. Background Art

[0002] The existing wind power tower is generally divided into multiple tower sections. After the tower sections are manufactured in the factory, they are directly transported to the site by a transport vehicle and assembled into a tower. The existing transportation method usually places each tower section directly in the carriage of the transport vehicle for transportation. In addition, some tower structures cannot allow all tower sections to be stacked up. They need to be spread out for transportation, which greatly increases the floor space. Only one set of tower can be transported at a time, which greatly reduces the transportation efficiency. In addition, the existing tower and wind power blades are basically transported separately, and both are large in size, so it is impossible to use container transportation, and the existing methods all lead to high transportation costs.

[0003] CN 114458526 A discloses a wind turbine blade that can be loaded into a container. The blade and the tower are loaded into the container at the same time. However, this method has the following disadvantages: (1) an additional container is required for transportation, which greatly increases the transportation cost and transportation weight; (2) a container can only load at most two sets of towers and two sets of blades, resulting in low transportation efficiency. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and provide a container-type combined structure and an assembly method of wind turbine blades and towers with compact combined structure, high space utilization, high transportation efficiency and low transportation cost.

[0005] The technical solution of the present invention is:

[0006] A container-type combined structure of wind turbine blades and towers comprises multiple sets of wind turbine blades and multiple sets of wind turbine towers. The tower sections of each set of wind turbine towers are sequentially socketed according to size. At least a part of the blade bodies of the multiple sets of wind turbine blades are stacked on each other to form a transport body with the socketed wind turbine towers. Transport end frames are provided at both ends of the transport body.

[0007] Furthermore, a notch is provided on the flange of the tower section.

[0008] Furthermore, the number of the wind turbine blades and wind turbine towers includes at least three sets.

[0009] Furthermore, each set of wind turbine towers is a segmented structure, the size of each tower section is reduced in sequence to achieve socket connection, and is covered by the tower section with the largest size; and the flanges of adjacent tower sections located in the same direction are in contact and close together through the notch to form a serial structure; the notch is an arc-shaped structure.

[0010] Furthermore, each set of wind turbine blades includes three blade bodies, and the blade bodies include blade plates, skins, and blade frames arranged therebetween; the blade plates are planar structures, and an arc structure is formed between the skins and the blade frames, and the blade plates extend outward, and the extended parts are not covered by the skins and the blade frames.

[0011] Furthermore, when the two blade bodies are stacked upside down, the arc structure of one blade body is inverted on the extended side of the blade plate of the other blade body, so that the upper and lower surfaces formed by the two blade bodies stacked upside down are both horizontal planes.

[0012] Furthermore, side panels are provided on both sides of the transport body, the side panels are blade bodies, and the blade horizontal surfaces of the blade bodies are arranged outwards.

[0013] Furthermore, the transport end frame is provided with corner pieces; a container structure is formed between the transport end frame, the side panels and the transport body, and meets the container transport dimensions.

[0014] Furthermore, the wind turbine tower is a prism structure; the transport end frame includes longitudinal columns and cross beams arranged between the longitudinal columns, the upper end of the longitudinal column extends a portion along the cross beam, the end of the extended portion is provided with a top angle piece, the bottom surface of the longitudinal column is provided with a bottom angle piece, and a reinforcement structure is provided between the longitudinal column and the cross beam.

[0015] A container-type combination method of a wind power generation blade and a tower of the present invention comprises the following steps: the segmented tower sections of each set of wind power towers are sequentially connected according to their sizes, and then a plurality of wind power towers are combined along the length direction; at least two blade bodies are stacked up and down, and the upper and lower surfaces formed after the stacking are both horizontal planes, and the stacked blade bodies are placed on the upper part of the wind power tower to form a transport body; transport end frames are arranged at the front and rear ends of the transport body, and at least one blade body is arranged on both sides of the transport body as a side plate of the transport body; after the transport body, the transport end frames and the side plates are connected, a container structure is formed for overall transportation.

[0016] Beneficial effects of the present invention:

[0017] (1) By socketing the tower sections of each set of multiple wind turbine towers and stacking multiple sets of blade bodies to form a transport body, and using the blade bodies as side panels and providing transport end frames at the ends, the entire body can be transported in the form of a container without the need for additional containers. This can greatly improve space utilization and enable at least three sets of wind turbine towers and wind turbine blades to be transported at a time, greatly improving transport efficiency and reducing transport costs;

[0018] (2) By providing a notch on the flange, the connection between the tower sections can be made more compact, thereby increasing the number of power towers that can be transported, thereby improving transportation efficiency and reducing transportation costs;

[0019] (3) By setting the placement and direction of each wind turbine tower and each blade body, the compactness of the structure can be ensured, and the space utilization rate can be greatly improved, so that it can meet the container transportation standards in terms of height, width and length;

[0020] (4) By setting up a transport end frame structure, the transport subject can be transported in the form of a container;

[0021] (5) By using the blade body as the side plate, the characteristics of the blade body can be fully utilized to increase the number of items transported at one time, thereby improving transportation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention transported in the form of a container;

[0023] Figure 2 It is a schematic diagram of the socket structure of each set of wind power towers in an embodiment of the present invention;

[0024] Figure 3 It is a partial structural schematic diagram of a tower section according to an embodiment of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the upper and lower blade bodies stacked in an embodiment of the present invention;

[0026] Figure 5 It is a schematic diagram of the exploded structure of the overall combined transportation of an embodiment of the present invention.

[0027] Description of the accompanying drawings:

[0028] 1. Wind turbine tower; 2. Transport end frame; 3. Blade body; 10. Tower section; 11. Tower column; 12. Cross bar; 13. Short bar; 14. Flange; 21. Longitudinal column; 22. Cross beam; 23. Top angle piece; 24. Bottom angle piece; 25. Diagonal bar; 31. Blade; 32. Skin; 33. Arc section; 34. Plane section; 141. Notch. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] like Figure 1 and Figure 5 As shown: a container-type combined structure of wind turbine blades and towers, including multiple sets of wind turbine blades and multiple sets of wind turbine towers 1, each set of wind turbine towers 1 The tower sections 10 are sequentially connected according to size, and at least a part of the blade bodies 3 of the multiple sets of wind turbine blades are stacked on each other to form a transport body with the connected wind turbine towers 1; transport end frames 2 are provided at both ends of the transport body.

[0031] The above scheme has the following advantages: by sequentially connecting multiple sets of wind power towers, the occupied area can be greatly reduced; and multiple sets of wind power blades and multiple sets of wind power towers can be transported at the same time, which greatly improves the transportation efficiency.

[0032] This embodiment includes three sets of wind turbine towers 1 and three sets of wind turbine blades. Each of the three sets of wind turbine towers is a segmented tower section structure. The tower sections 10 are spliced ​​together to form a complete set of wind turbine tower structures, and the tower sections 10 are nested with each other for transportation. Each set of wind turbine blades includes three blade bodies 3, which is equivalent to nine blade bodies 3 that can be transported at one time in this embodiment. And a set of wind turbine towers 1 is installed corresponding to three blade bodies 3 to form a set of wind turbines. Through the combined structure of this embodiment, three sets of wind turbines can be transported to the destination at one time and assembled, and the transportation efficiency is extremely high.

[0033] like Figure 2 and Figure 3 As shown: In this embodiment, each of the three sets of wind turbine towers 1 is composed of six tower sections 10, and each tower section is a prism structure, including four tower columns 11, and adjacent tower columns are connected with a plurality of cross bars 12 arranged at intervals up and down, and a truss structure is provided between adjacent cross bars. Short rods 13 are provided on the uppermost cross bar and the lowermost cross bar of each tower section, and a section is extended along the cross bar 12 at both ends of the tower column 11, and the extended section and the short rod 13 are provided with flanges 14 for connecting the upper and lower tower sections. The size of each tower section decreases from bottom to top. When connected, the small one is inserted into the large tower section and is finally covered by the largest tower section. Since the sleeve connection will be hindered by the adjacent flange 14, resulting in a large gap after the sleeve connection, thereby increasing the occupied space, the present embodiment sets a notch 141 on the flange 14, that is, the flanges 14 of the sleeved tower sections located in the same direction are all in close contact through the notch 141, and the notch 141 is an arc-shaped structure, which can make the flanges 14 of the tower sections closely contact each other to form a serial structure. In this way, the overall length of each set of wind power towers 1 after sleeve connection can be greatly reduced, so that the present invention can transport at least three sets of wind power towers 1 at a time, greatly improving the transportation efficiency.

[0034] In this embodiment, the notch 141 of the flange can be formed by removing at least two complete adjacent threaded holes to form an arc surface, and the remaining threaded holes are normally connected; or it can be formed by removing at least two adjacent threaded holes, and leaving half of each threaded hole and removing the other half to form an arc surface. It can be said that the setting of the notch of the present invention can achieve close contact between the tower section flanges of different sections without affecting the normal connection function of the flange.

[0035] like Figure 4As shown: In this embodiment, three sets of wind turbine blades include a total of nine blade bodies 3. The blade body 3 includes a blade plate 31, a skin 32 and a blade frame arranged therebetween, and the blade plate, the skin and the blade frame are all made of metal. The blade plate 31 is a planar structure, preferably a sandwich panel. An arc structure is formed between the skin and the blade frame, and the blade plate extends outward along the arc structure. The extended part is not covered by the skin and the blade frame, and the flat structure of the blade plate is still maintained. Therefore, the blade body of the present invention forms an arc segment 33 and a plane segment 34 as a whole through the design of the blade plate 31, the skin 32 and the blade frame. When the two blade bodies 3 are stacked up and down, the arc segment 33 of the first blade body is inverted on the plane segment 34 of the second blade body, that is, the arc segment of the first blade body is opposite to the plane segment of the second blade body, and at the same time, the plane segment of the first blade body is opposite to the arc segment of the second blade body, so that the upper and lower surfaces formed after the two blade bodies are stacked up and down are both horizontal planes, thereby greatly saving transportation space.

[0036] The blade skeleton is arranged along the length direction of the blade body 3, wrapped by the skin, and the height decreases step by step from one end to the other end, that is, the arc section of the arc segment 33 is the largest at one end of the blade body 3 and the smallest at the other end.

[0037] In this embodiment, the transport end frame 2 includes a longitudinal column 21 and a cross beam 22 arranged between the longitudinal columns. The upper end of the longitudinal column extends a portion along the cross beam, and the end of the extended portion is provided with a top corner piece 23. The bottom surface of the longitudinal column is provided with a bottom corner piece 24. Two inclined rods 25 are provided between the longitudinal column and the cross beam. The two inclined rods 25 form an X-shaped structure, and the lower end thereof is connected to the lower cross beam, and the upper end is connected to the two longitudinal columns 21. On the one hand, it plays a reinforcing role, and on the other hand, it can resist or connect the wind power tower to prevent it from shaking. A certain distance is set between the inclined rod 25 and the upper cross beam, and a certain distance is also set between the upper cross beam and the top corner piece 23, which can be used to place multiple blade bodies.

[0038] like Figure 5 As shown: A container-type combination method of a wind power blade and a tower of the present invention comprises the following steps: six sections of tower sections 10 of each set of wind power tower 1 are sequentially connected according to size; multiple blade bodies 3 are stacked up and down, and the upper and lower surfaces formed after stacking are both horizontal planes, and are placed on the upper part of the wind power tower 1 after stacking to form a transportation main body; transportation end frames 2 are arranged at the front and rear ends of the transportation main body, and a blade body 3 is arranged on both sides of the transportation main body as a side plate of the transportation main body; after the transportation main body, the transportation end frames and the side plates are connected, a container structure is formed for overall transportation.

[0039] Specifically, since three sets of wind power towers 1 are provided in this embodiment, each set has six tower sections 10 connected together, and the three sets of wind power towers can be connected to form a whole through flanges 14 to prevent shaking between each other during transportation; the three sets can be arranged in the direction in which the set in the middle is arranged in the opposite direction to the wind power towers on both sides thereof, so as to facilitate alignment and connection between the flanges. It can be understood that the three sets of power generation tower sections can be placed in any direction and arranged side by side along the length direction. After being placed, their length direction does not exceed the container transportation size.

[0040] The blade bodies 3 are placed above the three sets of wind turbine towers 1. Since there are nine blade bodies 3 in total in this embodiment, it is preferred to place seven wind turbine blades 3 above the wind turbine tower 1, wherein six wind turbine blades 3 are stacked in pairs, so that the upper and lower surfaces formed by the two blade bodies stacked up and down are both horizontal planes. For example, in this embodiment, the wind turbine blades stacked in pairs are called blade stacking units, then three groups of blade stacking units are placed above the wind turbine tower, and a single blade body is placed above the three groups of blade stacking units, thereby completing the arrangement of seven wind turbine blades, and each adjacent two groups of blade stacking units are arranged in reverse, such as the first group and the third group are placed in the same direction, and the ends with the largest arc cross-section are arranged oppositely, while the second group located in the middle arranges the end with the smallest arc cross-section oppositely to the ends with the largest arc cross-section of the other two groups, and the topmost blade body and the adjacent group of blade stacking units are also arranged in reverse. This arrangement of the present invention can greatly improve the compactness of the stacking between blades and shorten the height space.

[0041] After the arrangement is completed, the seven blade bodies 3 and the three sets of wind turbine towers 1 form a transport body. Since side panels are set on both sides of the transport body to form a container transport mode, the remaining two blade bodies 3 are used as side panels in this embodiment, and the blade plates 31 of the blade bodies are set horizontally outward to ensure the flatness of the exterior so that it meets the container transport standard. In this way, a container structure is formed between the transport end frame, the side panels and the transport body, and the corner pieces on the transport end frame 2 are set so that the whole meets the container transport size, and can be transported by sea and land in the form of a container, greatly improving the convenience and efficiency of transportation.

[0042] It is understandable that there can be multiple ways of connecting the transport end frame, the side panels and the transport body, so that they can be connected as a whole for transportation to prevent shaking and falling off. For example, bolts are used to connect the side panels and the end frames, and the transport body and the end frames. The present invention does not specifically limit the connection method.

[0043] In summary, on the one hand, the present invention designs the structure of the wind turbine tower and the blade body so that they can be stacked and assembled in the most compact way, which can greatly improve space utilization and realize sea and land transportation in the form of containers; on the other hand, through reasonable spatial layout of tower sections and wind turbine blades, multiple sets of wind turbine towers and wind turbine blades can be transported at one time, avoiding multiple round trips for transportation, thereby greatly improving transportation efficiency.

Claims

1. A container-type combined structure of a wind turbine blade and a tower, characterized in that: The invention comprises a plurality of sets of wind turbine blades and a plurality of sets of wind turbine towers, wherein the wind turbine towers are of a prism structure; each set of wind turbine towers is of a segmented structure, wherein the size of each tower section is reduced in sequence to achieve sleeve connection, and is covered by the tower section of the largest size; a notch is arranged on the flange of the tower section, and each flange of the tower sections of adjacent sections located in the same direction are in contact and close contact through the notch to form a serial structure; at least a part of the blade bodies of the plurality of sets of wind turbine blades are stacked on each other to form a transport body with the sleeved wind turbine tower, and transport holes are arranged at both ends of the transport body The transport end frame; the blade body includes a blade plate, a skin and a blade frame arranged therebetween; the blade plate is a planar structure, and an arc structure is formed between the skin and the blade frame; side panels are provided on both sides of the transport body, the side panels are the blade body, and the blade plate horizontal surface of the blade body is arranged outward; the transport end frame includes a longitudinal column and a cross beam arranged between the longitudinal columns, a portion of the upper end of the longitudinal column extends along the cross beam, a top angle piece is provided at the end of the extended portion, a bottom angle piece is provided on the bottom surface of the longitudinal column, and a reinforcement structure is provided between the longitudinal column and the cross beam.

2. The container-type combined structure of wind turbine blades and towers according to claim 1 is characterized in that: The number of the wind turbine blades and wind turbine towers includes at least three sets.

3. The container-type combined structure of wind turbine blades and towers according to claim 1 is characterized in that: The notch is an arc-shaped structure.

4. The container-type combined structure of wind turbine blades and towers according to claim 1 is characterized in that: Each set of wind turbine blades includes three blade bodies, and the blade plates extend outwards, and the extended parts are not covered by the skin and the blade frame.

5. The container-type combined structure of wind turbine blades and towers according to claim 4 is characterized in that: When the two blade bodies are stacked upside down, the arc structure of one blade body is inverted on the extended side of the blade plate of the other blade body, so that the upper and lower surfaces formed by the two blade bodies stacked upside down are both horizontal planes.

6. The container-type combined structure of wind turbine blades and towers according to claim 1 is characterized in that: The transport end frame, the side plates and the transport body form a container structure and meet the container transport dimensions.

7. A container-type assembly method of a wind turbine blade and a tower, characterized in that: The method comprises the following steps: the tower sections of each wind power tower are connected in sequence according to their sizes, and then a plurality of wind power towers are combined along the length direction; at least two blade bodies are stacked up and down, and the upper and lower surfaces formed after the stacking are both horizontal planes, and the stacked blade bodies are placed on the upper part of the wind power tower to form a transport body; transport end frames are arranged at the front and rear ends of the transport body, and at least one blade body is arranged on both sides of the transport body as a side plate of the transport body; after the transport body, the transport end frames and the side plates are connected, a container structure is formed for overall transportation.

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