Fan tower section structure and wind generating set

Abstract

The utility model discloses a fan tower section structure and a wind generating set, the fan tower section structure comprises a tower section and a plurality of hoisting structures, the tower section is provided with a first end and a second end which are oppositely arranged in the extension direction of the tower section, and a plurality of hoisting connecting parts are arranged on the peripheral side of the tower section at intervals in the extension direction of the tower section. The hoisting connecting parts, the first end and the second end are arranged at intervals, the hoisting structures are connected with the hoisting connecting parts correspondingly, and the hoisting structures are used for being connected with a crane. In this way, the distance between every two adjacent hoisting connecting parts can be reduced, so that the stress borne by the tower drum section is reduced, the requirement of hoisting work for the structural strength of the tower drum section is lowered, and hoisting work on the tower drum section with the ultra-long length is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine generator sets, in particular to a wind turbine tower section structure and a wind turbine generator set. Background Art

[0002] The tower of a wind turbine is usually a segmented structure and is transported and stored in a horizontal state. During the on-site assembly process, the tower segments need to be turned over to a vertical state before assembly can proceed.

[0003] The existing tower section lifting structure usually uses the end face flanges at both ends of the tower section as lifting points to achieve the turning over and lifting of the tower section. However, using the end face flanges as lifting points has high requirements on the structural strength of the tower section itself, and it is impossible to set an extra-long tower section and increase the number of tower sections. Utility Model Content

[0004] The main purpose of the utility model is to propose a wind turbine tower section structure and a wind turbine generator set, aiming to solve the problem that the existing tower section lifting structure usually uses the end face flanges at both ends of the tower section as lifting points to achieve the turning over and lifting of the tower section, which has high requirements on the structural strength of the tower section itself, and it is impossible to set an extra-long tower section and increase the number of tower sections.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes a wind turbine tower section structure, comprising:

[0006] A tower section has a first end and a second end opposite to each other in its extension direction, a plurality of hoisting connection parts are arranged at intervals on the circumference of the tower section along its extension direction, and each of the hoisting connection parts is arranged at intervals from the first end and the second end; and

[0007] A plurality of hoisting structures are respectively connected to the plurality of hoisting connection parts, and each of the hoisting structures is used to be connected to a crane.

[0008] Optionally, the tower section is arranged to be tapered from the first end toward the second end;

[0009] Each of the hoisting connection portions is arranged close to the first end.

[0010] Optionally, each of the hoisting connection parts and the tower section are integrally formed.

[0011] Optionally, each of the hoisting connections and the tower section can be detachably connected.

[0012] Optionally, each of the hoisting connection parts includes a plurality of connecting members, and the plurality of connecting members are protrudingly arranged on the circumferential side surface of the tower section at intervals along the circumference of the tower section, and the plurality of connecting members are connected to the corresponding hoisting structures.

[0013] Optionally, each of the lifting structures includes a plurality of connecting ropes, and each of the connecting ropes is connected to a corresponding connecting piece.

[0014] Optionally, two connecting members are provided, and the two connecting members are arranged opposite to each other along the radial direction of the tower section;

[0015] There are two connecting ropes, and the two connecting ropes are respectively connected to the two connecting pieces.

[0016] Optionally, the tower section has a plurality of equally divided positions along its length direction;

[0017] Each of the hoisting connection parts is arranged corresponding to a different equally divided position.

[0018] Optionally, the plurality of equally divided positions include a first equally divided position and a second equally divided position in the middle, the length between the first equally divided position and the second equally divided position corresponds to an even number, the first equally divided position is disposed adjacent to the first end, and the length between the first end and the equally divided position corresponds to an odd number, and the second equally divided position is disposed adjacent to the second end, and the length between the second end and the equally divided position corresponds to an odd number;

[0019] There are two hoisting connection parts, and the two hoisting connection parts are respectively arranged corresponding to the first middle dividing position and the second middle dividing position.

[0020] The utility model also provides a wind turbine generator set, which comprises the above-mentioned wind turbine tower section structure.

[0021] In the technical solution provided by the utility model, before the lifting work is carried out, the tower section is in a horizontal state and placed on a horizontal plane. When the lifting work is required, the plurality of lifting structures are respectively connected to the plurality of lifting connection parts, the tower section is lifted by a crane, and one of the first end and the second end is moved upward and the other is moved downward to realize the turning over of the tower. Since the plurality of lifting connection parts are all on the peripheral side surface of the tower section, and each of the lifting connection parts is spaced apart from the first end and the second end, the distance between two adjacent lifting connection parts can be reduced, thereby reducing the stress on the tower section, thereby reducing the requirement of the lifting work on the structural strength of the tower section itself, and realizing the lifting work of the tower section with an extra-long length. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 A three-dimensional schematic diagram of an embodiment (horizontal state) of a wind turbine tower section structure provided by the utility model;

[0024] Figure 2 for Figure 1 A three-dimensional schematic diagram of the wind turbine tower section structure (vertical state).

[0025] Description of Figure Numbers:

[0026] Label name Label name 100 Wind turbine tower section structure 21 Connectors 1 Tower section 3 Hoisting structure 2 Lifting connection 31 Connection rope

[0027] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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.

[0029] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0031] At present, the commonly used tower section lifting structure usually uses the end face flanges at both ends of the tower section as lifting points to achieve the turning over and lifting of the tower section. It has high requirements on the structural strength of the tower section itself, and it is impossible to set an extra-long tower section and increase the number of tower sections, which poses a high problem.

[0032] In order to solve the above problems, the utility model provides a wind turbine tower section structure 100. Figure 1 to Figure 2 A specific embodiment of the wind turbine tower section structure provided by the utility model.

[0033] See also Figure 1 to Figure 2 The wind turbine tower section structure 100 includes a tower section 1 and a plurality of hoisting structures 3. The tower section 1 has a first end and a second end that are relatively arranged in its extension direction. A plurality of hoisting connection parts 2 are arranged at intervals on the circumference of the tower section 1 along its extension direction. Each of the hoisting connection parts 2 is arranged at intervals from the first end and the second end. The plurality of hoisting structures 3 are respectively connected to the plurality of hoisting connection parts 2, and each of the hoisting structures 3 is used to be connected to a crane.

[0034] In the technical solution provided by the utility model, before the lifting work is carried out, the tower section 1 is in a horizontal state and placed on a horizontal plane. When the lifting work is required, the plurality of lifting structures 3 are respectively connected to the plurality of lifting connection parts 2, and the tower section 1 is lifted by a crane, and one of the first end and the second end is moved upward and the other is moved downward to realize the turning over of the tower. Since the plurality of lifting connection parts 2 are all on the peripheral side surface of the tower section 1, and each of the lifting connection parts 2 is spaced apart from the first end and the second end, the distance between two adjacent lifting connection parts 2 can be reduced, thereby reducing the stress on the tower section 1, thereby reducing the requirements of the lifting work on the structural strength of the tower section 1 itself, and realizing the lifting work of the extra-long tower section 1.

[0035] It is understandable that when hoisting the extra-long tower section 1, the number of tower sections 1 required for the wind turbine is reduced, which can reduce the amount of flanges and bolts used, thereby reducing the amount of consumables used and reducing the material cost of the hoisting work.

[0036] At the same time, when the number of tower sections 1 required for the wind turbine is reduced, the steps of the hoisting work at the construction site will be reduced accordingly, thereby improving the hoisting efficiency at the construction site and reducing the time cost of the hoisting work.

[0037] In addition, it should be noted that the tower section 1 is tapered from the first end toward the second end. Based on this, the center of gravity of the tower section 1 is close to the first end. In order to ensure the stability of the hoisting during the hoisting work and prevent the tower section 1 from being dispatched and deflected during the hoisting, thereby affecting the normal progress of the hoisting work, each of the hoisting connection parts 2 is arranged close to the first end to be able to stably lift the tower section 1 and ensure the stability of the tower section 1 before the turning over work.

[0038] Furthermore, the present invention does not limit the specific connection form between the lifting connection part 2 and the tower section 1. For example, in one embodiment of the present invention, each lifting connection part 2 and the tower section 1 are integrally formed. Such a configuration can ensure the connection strength between each lifting connection part 2 and the tower section 1, and ensure the stability of the connection during the process of each lifting structure 3 connecting the corresponding lifting connection part 2 to lift the tower section 1.

[0039] In another embodiment of the utility model, the connection form between each of the hoisting connections 2 and the tower section 1 can also be set to a detachable connection. In this way, when the tower section 1 needs to be hoisted, multiple hoisting connections 2 are connected to the tower section 1 to perform the hoisting work; after the hoisting work is completed, the multiple hoisting connections 2 can be removed from the tower section 1 to prevent the multiple hoisting connections 2 from affecting the next installation work of the tower section 1. At the same time, the multiple hoisting connections 2 can be recycled to further reduce material costs.

[0040] Specifically, when each of the hoisting connections 2 and the tower section 1 is detachably connected, the utility model also does not limit the connection form between each of the hoisting connections 2 and the tower section 1. Each of the hoisting connections 2 and the tower section 1 can be connected by threaded connection or other connection forms. During actual setting, it can be selected according to needs.

[0041] At the same time, in order to further ensure the stability of the tower section 1 during the lifting work and prevent the tower section 1 from axially rotating during lifting, thereby interfering with the normal progress of the lifting work, each of the lifting connection parts 2 needs to have multiple lifting points, that is, each of the lifting connection parts includes multiple connecting parts 21, and the multiple connecting parts 21 are protruding from the circumferential side of the tower section 1 at intervals along the circumference of the tower section 1, and the multiple connecting parts 21 are connected to the corresponding lifting structures 3.

[0042] Based on the above content, each of the hoisting structures 3 includes a plurality of connecting ropes 31 , and each of the connecting ropes 31 is connected to the corresponding connecting member 21 .

[0043] It should be understood that the present invention does not limit the number of the multiple connecting parts 21 and the connecting ropes 31. However, the multiple connecting parts 21 must all be located in the same semicircle of the circumferential side of the tower section 1 to prevent the connecting ropes 31 connecting the connecting parts 21 and the tower section 1 from interfering with each other during the lifting work, thereby affecting the normal progress of the lifting work.

[0044] In one embodiment of the utility model, two connecting members 21 are provided, and the two connecting members 21 are arranged opposite to each other along the radial direction of the tower section 1. Correspondingly, two connecting ropes 31 are provided, and the two connecting ropes 31 are respectively connected to the two connecting members 21. With such arrangement, during the hoisting work, since the two connecting members 21 are protrudingly provided on the side surface of the tower section 1 along the radial direction of the tower section 1, the two connecting ropes 31 connecting the two connecting members 21 can avoid the tower section 1, so as to avoid the connecting ropes 31 contacting the tower section 1 and interfering with the tower section 1, thereby affecting the hoisting stability of the wind turbine tower section structure 100.

[0045] Of course, in another embodiment of the utility model, three connecting members 21 are provided, two of which are arranged opposite to each other along the radial direction of the tower section 1, and the third connecting member 21 is arranged between the two connecting members 21. Correspondingly, three connecting ropes 31 are also provided, and the three connecting ropes 31 are respectively connected to the three connecting members 21. With such an arrangement, during the hoisting work, if it is necessary to turn over the tower section 1, it is only necessary to rotate the second end toward the direction of the third connecting member 21, so as to further increase the number of hoisting points at each hoisting connection portion 2 without affecting the hoisting stability, so as to reduce the bearing pressure of each connecting member 21 and make the hoisting process more stable.

[0046] In addition, the utility model does not limit the specific form of each of the connecting members 21. For example, the connecting member 21 can be set as a lifting ear, the base of the lifting ear is fixedly connected to the tower section 1, and the connecting rope 31 can pass through the ring portion of the lifting ear to connect the lifting ear; of course, the connecting member 21 can also be set as a hanging seat, or other structures. The utility model does not limit this. In actual setting, it can be selected according to needs.

[0047] Similarly, the present invention does not limit the specific structure of each connecting rope 31. In one embodiment of the present invention, the connecting rope 31 can be set as a steel wire rope; in other embodiments of the present invention, the connecting rope 31 can also be set as a chain or other structural forms.

[0048] It should be noted that different lifting connection parts 2 may also include different numbers of the connection members 21 , which can be selected according to actual needs during actual setting.

[0049] Furthermore, in order to make the tower section 1 only subject to the minimum stress during the hoisting work, the tower section 1 has a plurality of equally divided positions along its length direction, and each of the hoisting connection parts 2 is arranged corresponding to different equally divided positions. It can be understood that the plurality of equally divided positions are the minimum stress balance points of the tower section 1. By arranging each of the hoisting connection parts 2 at different equally divided positions, the tower section 1 can be subjected to the minimum stress during the hoisting work, so as to greatly reduce the requirements of the hoisting work on the structural strength of the tower section 1 itself, and realize the hoisting work of the super-long tower section 1.

[0050] It should be noted that when the tower section 1 is gradually tapered from the first end toward the second end, each of the lifting connection parts 2 is arranged on the side of the corresponding equally divided position close to the first end, so as to be able to stably lift the tower section 1 and ensure the stability of the tower section 1 before the turning over work.

[0051] In one embodiment of the utility model, the plurality of equally divided positions include a first equally divided position and a second equally divided position in the middle, the length between the first equally divided position and the second equally divided position corresponding to the number of equally divided positions is an even number, the first equally divided position is arranged adjacent to the first end, and the number of equally divided positions corresponding to the length between the first end is an odd number, the second equally divided position is arranged adjacent to the second end, and the number of equally divided positions corresponding to the length between the second end is an odd number, and two of the lifting connection parts 2 are provided, and the two lifting connection parts 2 are arranged corresponding to the first equally divided position and the second equally divided position, respectively.

[0052] It can be understood that, in this embodiment, the length between the first equal dividing position and the first end corresponds to the length between the second equal dividing position and the second end, and the sum of the two corresponds to the length between the first equal dividing position and the second equal dividing position. Such a setting can ensure that the tower section 1 is in a state of only minimum stress, reduce the requirements of the hoisting work on the structural strength of the tower section 1 itself, so as to be able to hoist the extra-long tower section 1.

[0053] The present invention also provides a wind turbine generator set, which includes the wind turbine tower section structure 100 described above.

[0054] It can be understood that the specific structure of the wind turbine generator set refers to the above embodiments. Since the wind turbine generator set adopts all the technical solutions of all the above embodiments, the beneficial effects brought by the technical solutions of the above embodiments are generally possessed, which will not be repeated here one by one.

[0055] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the concept of the utility model, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A wind turbine tower section structure, characterized in that: include: A tower section has a first end and a second end opposite to each other in its extension direction, a plurality of hoisting connection parts are arranged at intervals on the circumference of the tower section along its extension direction, and each of the hoisting connection parts is arranged at intervals from the first end and the second end; and A plurality of hoisting structures, respectively connected to the plurality of hoisting connection parts, each of the hoisting structures being used to be connected to a crane; The tower section has a plurality of equally divided positions along its length direction; Each of the hoisting connection parts is arranged corresponding to a different equally divided position; The plurality of equally divided positions include a first equally divided position and a second equally divided position in the middle, the length between the first equally divided position and the second equally divided position corresponds to an even number, the first equally divided position is disposed adjacent to the first end, and the length between the first end and the equally divided position corresponds to an odd number, and the second equally divided position is disposed adjacent to the second end, and the length between the second end and the equally divided position corresponds to an odd number; There are two hoisting connection parts, and the two hoisting connection parts are respectively arranged corresponding to the first middle dividing position and the second middle dividing position.

2. The wind turbine tower section structure according to claim 1, characterized in that: The tower section is arranged to be tapered from the first end toward the second end; Each of the hoisting connection portions is arranged close to the first end.

3. The wind turbine tower section structure according to claim 1, characterized in that: Each of the hoisting connection parts and the tower section are integrally formed.

4. The wind turbine tower section structure according to claim 1, characterized in that: Each of the hoisting connection parts and the tower section is detachably connected.

5. The wind turbine tower section structure according to claim 1, characterized in that: Each of the hoisting connection parts includes a plurality of connection pieces, and the plurality of connection pieces are protrudingly arranged on the peripheral side surface of the tower section at intervals along the circumferential direction of the tower section, and the plurality of connection pieces are connected to the corresponding hoisting structures.

6. The wind turbine tower section structure according to claim 5, characterized in that: Each of the hoisting structures includes a plurality of connecting ropes, and each of the connecting ropes is connected to the corresponding connecting piece.

7. The wind turbine tower section structure according to claim 6, characterized in that: There are two connecting members, and the two connecting members are arranged opposite to each other along the radial direction of the tower section; There are two connecting ropes, and the two connecting ropes are respectively connected to the two connecting pieces.

8. A wind turbine generator set, characterized in that: It comprises a wind turbine tower section structure as described in any one of claims 1 to 7.

Images