Lattice type wind turbine generator supporting structure

Abstract

The utility model provides a lattice type wind turbine generator supporting structure which comprises four steel stand columns, four connecting steel pipes, a steel platform connecting piece and a steel tower drum, and the upper ends of the four steel stand columns are correspondingly connected with the lower ends of the four connecting steel pipes respectively. The steel platform connecting piece is of a rectangular box structure with an opening in the lower end, the steel tower drum is installed on the steel platform connecting piece, the upper ends of the four connecting steel pipes penetrate through the opening in the lower end of the steel platform connecting piece to stretch into a cavity of the steel platform connecting piece, and the four connecting steel pipes correspond to the four corners of the steel platform connecting piece respectively. And the upper ends of the four connecting steel pipes are connected with the top plate of the steel platform connecting piece. The lattice type wind generating set supporting structure can meet the requirements of the wind generating set supporting structure for the height, the rigidity and the strength, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power, in particular to a lattice-type wind turbine support structure. Background Art

[0002] In wind power projects, wind turbine towers are the supporting structures of wind turbines. Steel towers are made of rolled steel plates. Their main function is to support the weight of the unit and convert wind energy into electrical energy. The height of the steel tower needs to be determined according to the size of the wind turbine and the expected wind energy resources, and can reach tens of meters or even hundreds of meters. With the rapid development of wind turbines, steel towers need to have greater height, rigidity and strength, resulting in the increasing diameter of traditional steel towers, which is not only inconvenient to transport, but also with the continuous increase in steel wall thickness, the amount of steel used increases, greatly increasing the cost of production and installation.

[0003] Accordingly, the utility model provides a lattice-type wind turbine support structure, which can combine and connect the steel tower tube and the steel tower frame, while meeting the height, rigidity and strength requirements of the wind turbine support structure and taking the project cost into consideration. Utility Model Content

[0004] The utility model aims to provide a lattice-type wind turbine support structure, which can meet the requirements of the wind turbine support structure for height, rigidity and strength and reduce costs.

[0005] The utility model provides a lattice wind turbine support structure, comprising four steel columns, four connecting steel pipes, a steel platform connector and a steel tower, the upper ends of the four steel columns are respectively connected to the lower ends of the four connecting steel pipes; the steel platform connector is a rectangular box structure with an opening at the lower end, the steel tower is installed on the steel platform connector, the upper ends of the four connecting steel pipes respectively pass through the lower end opening of the steel platform connector and extend into the cavity of the steel platform connector, the four connecting steel pipes respectively correspond to the four corners of the steel platform connector, and the upper ends of the four connecting steel pipes are all connected to the top plate of the steel platform connector.

[0006] According to a lattice-type wind turbine support structure provided by the utility model, the steel platform connector is formed by a top plate and four side plates; each of the connecting steel pipes is a circular steel pipe, and the two adjacent side plates are connected by an arc transition so that the outer side wall of the connecting steel pipe can be fitted with the four corners of the steel platform connector.

[0007] According to a lattice wind turbine support structure provided by the utility model, a plurality of first connecting through holes are respectively provided at positions corresponding to the connecting steel pipes on the right side of each side plate, and the plurality of first connecting through holes are respectively arranged in sequence and spaced apart along the height direction of the side plate.

[0008] According to a lattice wind turbine support structure provided by the utility model, a plurality of first connecting bolts corresponding to the first connecting through holes are provided on each of the connecting steel pipes, each of the first connecting bolts passes through the connecting steel pipe respectively, and each of the first connecting bolts passes through each of the first connecting through holes and is fastened by a connecting nut.

[0009] According to a lattice-type wind turbine support structure provided by the utility model, four steel pipe connecting flanges are fixedly provided at the bottom of the top plate, and a steel pipe flange is provided on the top of each connecting steel pipe, respectively. Each of the steel pipe connecting flanges corresponds to each of the steel pipe flanges one by one, and the corresponding steel pipe connecting flanges are connected to the steel pipe flanges by a plurality of second connecting bolts.

[0010] According to a lattice wind turbine support structure provided by the utility model, a second connecting through hole for the second connecting bolt to pass through is provided on the top plate.

[0011] According to a lattice wind turbine support structure provided by the utility model, a tower connecting flange is fixedly provided on the top of the top plate, a steel tower flange is provided at the bottom of the steel tower, and the tower connecting flange and the steel tower flange are connected by a plurality of third connecting bolts.

[0012] According to a lattice wind turbine support structure provided by the utility model, a third connecting through hole for the third connecting bolt to pass through is provided on the top plate.

[0013] According to a lattice wind turbine support structure provided by the utility model, each of the steel columns includes a plurality of steel column connecting sections, and the plurality of steel column connecting sections are connected in sequence.

[0014] According to a lattice wind turbine support structure provided by the utility model, a nacelle is installed at the upper end of the steel tower, a hub is installed on the nacelle, and wind turbine blades are installed on the hub.

[0015] The utility model provides a lattice wind turbine support structure, comprising four steel columns, four connecting steel pipes, a steel platform connector and a steel tower, wherein the upper ends of the four steel columns are respectively connected to the lower ends of the four connecting steel pipes, the steel platform connector is arranged as a rectangular box structure with an opening at the lower end, and the steel tower is installed on the steel platform connector, wherein the upper ends of the four connecting steel pipes respectively pass through the lower end opening of the steel platform connector and extend into the cavity of the steel platform connector, the four connecting steel pipes respectively correspond to the four corners of the steel platform connector, and the upper ends of the four connecting steel pipes are all connected to the top plate of the steel platform connector; that is, a quadrilateral lattice steel tower is formed by arranging four steel columns and four connecting steel pipes connected to the four steel columns, and a steel platform connector is arranged to realize a reliable connection between the quadrilateral lattice steel tower and the steel tower. Therefore, the lattice wind turbine support structure provided by the utility model adopts a support structure form that combines an upper steel tower structure with a lower quadrilateral lattice steel tower structure. It can not only meet the requirements of the wind turbine support structure for height, rigidity and strength, and meet the bearing capacity of the wind turbine unit, but also has a simple and reasonable structure, effectively reducing the amount of steel used and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the overall structure of the lattice wind turbine support structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the connection between the steel pipe and the steel platform connecting piece in the supporting structure of the lattice wind turbine unit of the utility model;

[0019] Figure 3 This is a front view of the steel platform connector in the support structure of the lattice wind turbine unit of the utility model;

[0020] Figure 4 It is a top view of the steel platform connector in the support structure of the lattice wind turbine unit of the utility model;

[0021] Figure 5 It is a bottom view of the steel platform connector in the support structure of the lattice wind turbine unit of the utility model;

[0022] Figure 6 The utility model is a schematic diagram of the connection between the steel columns and the connecting steel pipes in the supporting structure of the lattice wind turbine set.

[0023] Description of reference numerals:

[0024] 1. Steel column; 101. Steel column connecting section;

[0025] 2. Connecting steel pipe; 201, steel pipe flange;

[0026] 3. Steel platform connector; 301. Top plate; 302. Side plate; 303. First connecting through hole; 304. Steel pipe connecting flange; 305. Second connecting through hole; 306. Tower connecting flange; 307. Third connecting through hole;

[0027] 4. Steel tower; 401. Steel tower flange;

[0028] 5. First connecting bolt; 6. Connecting nut; 7. Nacelle; 8. Hub; 9. Fan blade. DETAILED DESCRIPTION

[0029] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] like Figures 1 to 6 As shown, the lattice wind turbine support structure of the embodiment of the utility model includes four steel columns 1, four connecting steel pipes 2, a steel platform connector 3 and a steel tower 4, and the upper ends of the four steel columns 1 are respectively connected to the lower ends of the four connecting steel pipes 2. The steel platform connector 3 is a rectangular box structure with an opening at the lower end, and the steel tower 4 is installed at the top center of the steel platform connector 3. The upper ends of the four connecting steel pipes 2 respectively pass through the lower end opening of the steel platform connector 3 and extend into the cavity of the steel platform connector 3. The four connecting steel pipes 2 correspond to the four corners of the steel platform connector 3, and the upper ends of the four connecting steel pipes 2 are connected to the top plate 301 of the steel platform connector 3. That is, by setting four steel columns 1 and four connecting steel pipes 2 correspondingly connected to the four steel columns 1, a quadrilateral lattice steel tower is formed, and by setting the steel platform connector 3, a reliable connection between the quadrilateral lattice steel tower and the steel tower 4 is achieved.

[0033] Therefore, the lattice wind turbine support structure of the embodiment of the utility model adopts a support structure form that combines an upper steel tower structure with a lower quadrilateral lattice steel tower structure. It can not only meet the requirements of the wind turbine support structure for height, rigidity and strength, and meet the bearing capacity of the wind turbine unit, but also has a simple and reasonable structure, effectively reducing the amount of steel used and reducing costs.

[0034] In some embodiments of the present invention, the steel platform connector 3 is enclosed by a top plate 301 and four side plates 302. Each connecting steel pipe 2 is a circular steel pipe, and the arc transition connection between two adjacent side plates 302 allows the outer wall of the connecting steel pipe 2 to fit the four corners of the steel platform connector 3, thereby facilitating reliable connection and fixation between the connecting steel pipe 2 and the steel platform connector 3.

[0035] Among them, a plurality of first connection through holes 303 are respectively provided at the position corresponding to the connection steel pipe 2 on the right side of each side plate 302, and the plurality of first connection through holes 303 are respectively arranged in sequence and at intervals along the height direction of the side plate 302. A plurality of first connection bolts 5 corresponding to the first connection through holes 303 are provided on each connection steel pipe 2, and each first connection bolt 5 passes through each connection steel pipe 2, and each first connection bolt 5 passes through each first connection through hole 303 and is tightened by a connection nut 6. That is, each connection steel pipe 2 is respectively bolted to the corresponding side plate 302 on the steel platform connector 3, thereby further improving the stability and reliability of the connection between the connection steel pipe 2 and the steel platform connector 3, and further improving the overall structural strength of the quadrilateral lattice steel tower.

[0036] Specifically, four steel pipe connecting flanges 304 are fixedly provided at the bottom of the top plate 301, and a steel pipe flange 201 is provided at the top of each connecting steel pipe 2. Each steel pipe connecting flange 304 corresponds to each steel pipe flange 201 one by one, and the corresponding steel pipe connecting flange 304 is connected to the steel pipe flange 201 by a plurality of second connecting bolts, thereby realizing reliable connection and fixation between the upper end of the connecting steel pipe 2 and the top plate 301 of the steel platform connector 3.

[0037] The top plate 301 is provided with a second connection through hole 305 for the second connection bolt to pass through, so as to facilitate the installation and construction between the top plate 301 and the connection steel pipe 2. The steel pipe flange 201 is arranged at the inner upper end of the connection steel pipe 2, and the second connection bolt can be fixed on the steel pipe flange 201. During installation, it is only necessary to make each second connection bolt pass through the through hole on the steel pipe connection flange 304 and the corresponding second connection through hole 305 and then tighten it with a connection nut, so that the on-site construction and installation are more convenient.

[0038] Specifically, a tower connecting flange 306 is fixedly provided on the top of the top plate 301, and a steel tower flange 401 is provided on the bottom of the steel tower 4. The tower connecting flange 306 and the steel tower flange 401 are connected by a plurality of third connecting bolts, thereby realizing reliable connection and fixation between the steel tower 4 and the steel platform connector 3.

[0039] A third connecting through hole 307 for a third connecting bolt to pass through is provided on the top plate 301 , so as to facilitate the installation construction between the top plate 301 and the steel tower 4 .

[0040] In some embodiments of the present invention, each steel column 1 includes a plurality of steel column connecting sections 101 , and the plurality of steel column connecting sections 101 can be connected in sequence via flanges, thereby facilitating transportation and on-site installation and construction.

[0041] In some embodiments of the utility model, a nacelle 7 is installed at the upper end of the steel tower 4, a hub 8 is installed on the nacelle 7, and wind turbine blades 9 are installed on the hub 8, thereby achieving reliable support for the wind turbine set.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A lattice wind turbine support structure, characterized in that: It includes four steel columns, four connecting steel pipes, a steel platform connector and a steel tower. The upper ends of the four steel columns are respectively connected to the lower ends of the four connecting steel pipes. The steel platform connector is a rectangular box structure with an open lower end. The steel tower is installed on the steel platform connector. The upper ends of the four connecting steel pipes respectively pass through the lower end opening of the steel platform connector and extend into the cavity of the steel platform connector. The four connecting steel pipes respectively correspond to the four corners of the steel platform connector, and the upper ends of the four connecting steel pipes are all connected to the top plate of the steel platform connector.

2. The lattice wind turbine support structure according to claim 1, characterized in that: The steel platform connector is surrounded by a top plate and four side plates; each of the connecting steel pipes is a circular steel pipe, and the two adjacent side plates are connected by an arc transition so that the outer side walls of the connecting steel pipes can be fitted with the four corners of the steel platform connector.

3. The lattice wind turbine support structure according to claim 2, characterized in that: A plurality of first connecting through holes are respectively arranged at positions corresponding to the connecting steel pipes on the right side of each of the side plates, and the plurality of first connecting through holes are respectively arranged in sequence and spaced apart along the height direction of the side plates.

4. The lattice wind turbine support structure according to claim 3, characterized in that: A plurality of first connecting bolts corresponding to the first connecting through holes are provided on each of the connecting steel pipes. Each of the first connecting bolts passes through the connecting steel pipes respectively, and each of the first connecting bolts passes through each of the first connecting through holes and is fastened by a connecting nut.

5. The lattice wind turbine support structure according to claim 2, characterized in that: Four steel pipe connecting flanges are fixedly provided at the bottom of the top plate, and a steel pipe flange is provided on the top of each connecting steel pipe. Each steel pipe connecting flange corresponds to each steel pipe flange one by one, and the corresponding steel pipe connecting flange is connected to the steel pipe flange through a plurality of second connecting bolts.

6. The lattice wind turbine support structure according to claim 5, characterized in that: The top plate is provided with a second connecting through hole for the second connecting bolt to pass through.

7. The lattice wind turbine support structure according to claim 1, characterized in that: A tower connecting flange is fixedly arranged on the top of the top plate, and a steel tower flange is arranged on the bottom of the steel tower. The tower connecting flange and the steel tower flange are connected to each other via a plurality of third connecting bolts.

8. The lattice wind turbine support structure according to claim 7, characterized in that: A third connecting through hole for the third connecting bolt to pass through is provided on the top plate.

9. The lattice wind turbine support structure according to claim 1, characterized in that: Each of the steel columns comprises a plurality of steel column connecting sections, and the plurality of steel column connecting sections are connected in sequence.

10. The lattice wind turbine support structure according to claim 1, characterized in that: A nacelle is installed at the upper end of the steel tower, a hub is installed on the nacelle, and a fan blade is installed on the hub.

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