Fan tower structure

Abstract

The utility model provides a fan tower structure which comprises a supporting frame, a connecting base and a tower drum, the upper end of the supporting frame is connected with the lower end of the connecting base, and the upper end of the connecting base is connected with the lower end of the tower drum. The supporting frame comprises three steel stand columns arranged in a triangular mode, every two adjacent steel stand columns are connected through a plurality of transverse web members, the transverse web members are sequentially arranged in the length direction of the steel stand columns at intervals, and the transverse web members are connected through longitudinal web members. Two inclined web members are arranged between every two vertically adjacent transverse web members, the lower ends of the two inclined web members are correspondingly connected with the two ends of the transverse web member located on the lower portion respectively, and the upper ends of the two inclined web members are connected to the joints between the longitudinal web members and the transverse web members located on the upper portion. According to the fan tower structure, the problems that an existing fan tower is complex in structure, large in steel consumption and high in cost can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, in particular to a wind turbine tower structure. Background Art

[0002] In wind power projects, wind turbine towers are the supporting structures of wind turbines, mainly used to support the weight of the turbines and convert wind energy into electrical energy. The height of the towers depends on the size of the wind turbines and the expected wind energy resources, and can reach tens of meters or even hundreds of meters. With the rapid development of wind turbines, towers need to have greater height, rigidity and strength, resulting in the cross-sectional dimensions of traditional wind turbine towers becoming larger and larger, the structure becoming more and more complex, and the amount of steel used increasing accordingly, greatly increasing the production cost.

[0003] Therefore, for megawatt-class wind turbines, the wind turbine tower must meet the requirements of height, rigidity and strength while taking into account the project cost, which has become an urgent problem that needs to be solved in the field of wind power generation technology. Utility Model Content

[0004] The utility model aims to provide a wind turbine tower structure, which can solve the problems of the existing wind turbine tower having a relatively complex structure, a large amount of steel material and a high cost.

[0005] The utility model provides a wind turbine tower structure, including a support frame, the support frame including three steel columns arranged in a triangle, each adjacent two of the steel columns are connected by a plurality of transverse webs, the plurality of transverse webs are arranged in sequence and at intervals along the length direction of the steel columns, and the plurality of transverse webs are connected by a longitudinal web; two inclined webs are arranged between each upper and lower adjacent two transverse webs, the lower ends of the two inclined webs are respectively connected to the two ends of the transverse web located below, and the upper ends of the two inclined webs are connected to the connection between the longitudinal web and the transverse web located above.

[0006] According to a wind turbine tower 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.

[0007] According to a wind turbine tower structure provided by the utility model, each of the steel column connecting sections is made of square steel pipes.

[0008] According to a wind turbine tower structure provided by the utility model, the cross section of the steel column gradually decreases from bottom to top.

[0009] According to a wind turbine tower structure provided by the utility model, it also includes a connecting seat and a tower, the upper end of the support frame is connected to the lower end of the connecting seat, and the upper end of the connecting seat is connected to the lower end of the tower.

[0010] According to a wind turbine tower structure provided by the utility model, three connecting columns are provided at the lower end of the connecting seat, each of the connecting columns corresponds to each of the steel columns one by one, a connecting column flange is provided at the lower end of each of the connecting columns, a steel column flange is provided at the upper end of each of the steel columns, and each of the steel column flanges is connected to the corresponding connecting column flange.

[0011] According to a wind turbine tower structure provided by the utility model, a connecting seat flange is provided at the upper end of the connecting seat, a tower flange is provided at the lower end of the tower, and the tower flange is connected to the connecting seat flange.

[0012] According to a wind turbine tower structure provided by the utility model, the connecting seat is a hollow steel pipe structure, and the cross section of the connecting seat is a hexagon; and mounting end surfaces are respectively provided at the upper and lower ends of the connecting seat.

[0013] According to a wind turbine tower structure provided by the utility model, the cross section of the tower gradually decreases from bottom to top.

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

[0015] The wind turbine tower structure provided by the utility model comprises a support frame, wherein the support frame comprises three steel columns arranged in a triangular shape, each adjacent two steel columns are connected by a plurality of transverse webs, the plurality of transverse webs are arranged in sequence along the length direction of the steel columns, and the plurality of transverse webs are connected by a longitudinal web; two inclined webs are respectively arranged between each two adjacent transverse webs, the lower ends of the two inclined webs are respectively connected to the two ends of the transverse web located below, and the upper ends of the two inclined webs are both connected to the connection between the longitudinal web and the transverse web located above; that is, by arranging the three steel columns in a triangular shape and arranging the transverse webs, the longitudinal webs and the inclined webs between the three steel columns, not only the overall structural strength and rigidity of the support frame are improved, but also the overall stability and reliability of the support frame are improved. Therefore, the wind turbine tower structure provided by the utility model can not only meet the requirements of the wind turbine tower for height, rigidity and strength, and meet the bearing capacity of the wind turbine unit, but also has a simple and reasonable structure, effectively reduces the amount of steel used, and reduces the cost. 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 It is a structural schematic diagram of the wind turbine tower structure of the utility model;

[0018] Figure 2 It is a cross-sectional schematic diagram of the wind turbine tower structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the installation of the connecting seat and the tower in the wind turbine tower structure of the utility model;

[0020] Figure 4 It is a top view of the connecting seat in the wind turbine tower structure of the utility model;

[0021] Figure 5 It is a bottom view of the connecting seat in the wind turbine tower structure of the utility model.

[0022] Description of reference numerals:

[0023] 1. Support frame; 101. Steel column; 102. Transverse web member; 103. Longitudinal web member; 104. Inclined web member;

[0024] 2. Connecting seat; 201. Connecting column; 202. Connecting column flange; 203. Connecting seat flange;

[0025] 3. Tower; 4. Nacelle; 5. Hub; 6. Wind blades. DETAILED DESCRIPTION

[0026] 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.

[0027] 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.

[0028] 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.

[0029] like Figures 1 to 5 As shown, the wind turbine tower structure of the embodiment of the utility model at least includes a support frame 1, which includes three steel columns 101 arranged in a triangle, and each adjacent two steel columns 101 are connected by a plurality of transverse webs 102, and the plurality of transverse webs 102 are sequentially arranged at intervals along the length direction of the steel columns 101, and the plurality of transverse webs 102 are connected by longitudinal webs 103. Among them, two inclined webs 104 are arranged between each two adjacent transverse webs 102, and the lower ends of the two inclined webs 104 are respectively connected to the two ends of the transverse web 102 located below, and the upper ends of the two inclined webs 104 are connected to the connection between the longitudinal web 103 and the transverse web 102 located above. That is, through the triangular arrangement of the three steel columns 101 and the special connection between the three steel columns 101, each transverse web member 102, each longitudinal web member 103 and each inclined web member 104, not only the overall structural strength and rigidity of the support frame 1 are improved, but also the overall stability and reliability of the support frame 1 are improved.

[0030] Therefore, the wind turbine tower structure of the embodiment of the utility model can not only meet the requirements of the wind turbine tower 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.

[0031] Specifically, each steel column 101 includes a plurality of steel column connecting sections, and the plurality of steel column connecting sections are connected in sequence, thereby facilitating transportation and on-site installation and construction.

[0032] Among them, each steel column connection section is made of square steel pipe, so as to reduce weight and cost while ensuring the structural strength of the steel column connection section.

[0033] The cross section of the steel column 101 gradually decreases from bottom to top, so that the steel column 101 has a cone-shaped structure as a whole, which further improves the structural stability and reliability of the steel column 101.

[0034] In some embodiments of the utility model, the wind turbine tower structure further includes a connecting seat 2 and a tower 3, the upper end of the support frame 1 is connected to the lower end of the connecting seat 2, and the upper end of the connecting seat 2 is connected to the lower end of the tower 3. By sequentially arranging the connecting seat 2 and the tower 3 on the support frame 1, the overall height of the wind turbine tower is further increased, and the structure is stable and reliable, meeting the installation requirements of megawatt-class wind turbines.

[0035] Specifically, three connecting columns 201 are provided at the lower end of the connecting seat 2, and each connecting column 201 corresponds to each steel column 101 one by one. A connecting column flange 202 is provided at the lower end of each connecting column 201, and a steel column flange is provided at the upper end of each steel column 101. Each steel column flange is connected and fixed to the corresponding connecting column flange 202, thereby realizing stable and reliable installation of the connecting seat 2 on the support frame 1.

[0036] Specifically, a connection seat flange 203 is provided at the upper end of the connection seat 2, and a tower flange is provided at the lower end of the tower 3. The tower flange is connected and fixed to the connection seat flange 203, thereby realizing stable and reliable installation of the tower 3 on the connection seat 2.

[0037] Specifically, the connection seat 2 adopts a hollow steel pipe structure, and the cross section of the connection seat 2 is hexagonal, so as to be compatible with the support frame 1. Among them, the upper and lower ends of the connection seat 2 are respectively provided with mounting end faces, so that it is convenient to set the connection seat flange 203 on the upper end face of the connection seat 2, and to set the connection column 201 under the upper end face of the connection seat 2.

[0038] Specifically, the cross section of the tower 3 gradually decreases from bottom to top, so that the tower 3 as a whole has a conical structure, which further improves the structural stability and reliability of the tower 3.

[0039] Specifically, a nacelle 4 is installed at the upper end of the tower 3 , a hub 5 is installed on the nacelle 4 , and a fan blade 6 is installed on the hub 5 .

[0040] 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 wind turbine tower structure, characterized in that: The invention comprises a support frame, wherein the support frame comprises three steel columns arranged in a triangle, each two adjacent steel columns are connected by a plurality of transverse webs, the plurality of transverse webs are arranged in sequence and spaced apart along the length direction of the steel columns, and the plurality of transverse webs are connected by a longitudinal web; two inclined webs are arranged between each two adjacent transverse webs, the lower ends of the two inclined webs are respectively connected to the two ends of the transverse web located below, and the upper ends of the two inclined webs are connected to the connection between the longitudinal web and the transverse web located above.

2. The wind turbine tower 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.

3. The wind turbine tower structure according to claim 2, characterized in that: Each of the steel column connecting sections is made of square steel pipes.

4. The wind turbine tower structure according to claim 1, characterized in that: The cross section of the steel column gradually decreases from bottom to top.

5. The wind turbine tower structure according to claim 1, characterized in that: It also includes a connecting seat and a tower, the upper end of the support frame is connected to the lower end of the connecting seat, and the upper end of the connecting seat is connected to the lower end of the tower.

6. The wind turbine tower structure according to claim 5, characterized in that: Three connecting columns are provided at the lower end of the connecting seat, and each connecting column corresponds to each steel column one by one. A connecting column flange is provided at the lower end of each connecting column, and a steel column flange is provided at the upper end of each steel column. Each steel column flange is connected to the corresponding connecting column flange.

7. The wind turbine tower structure according to claim 5, characterized in that: A connecting seat flange is provided at the upper end of the connecting seat, a tower flange is provided at the lower end of the tower, and the tower flange is connected to the connecting seat flange.

8. The wind turbine tower structure according to claim 5, characterized in that: The connecting seat is a hollow steel pipe structure, and the cross section of the connecting seat is a hexagon; mounting end surfaces are respectively provided at the upper and lower ends of the connecting seat.

9. The wind turbine tower structure according to claim 5, characterized in that: The cross section of the tower gradually decreases from bottom to top.

10. The wind turbine tower structure according to claim 5, characterized in that: A nacelle is installed at the upper end of the tower, a hub is installed on the nacelle, and a fan blade is installed on the hub.

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