CN218894727U

CN218894727U - Split type tower barrel and wind generating set

Info

Publication number: CN218894727U
Application number: CN202223521078.7U
Authority: CN
Inventors: 蒋仕平; 孙仲泽; 刘平; 雷熠; 黄小波; 蒋友伟; 汪俊; 李万楷; 刘明超; 蒋珍君; 李绪亮
Original assignee: Dongfang Electric Wind Power Co Ltd
Current assignee: Dongfang Electric Wind Power Co Ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-04-21
Anticipated expiration: 2032-12-28

Abstract

The utility model discloses a split tower barrel and a wind generating set, and belongs to the technical field of wind power generation equipment. The split tower barrel comprises a plurality of tower barrel petals, wherein one side of each tower barrel petal is provided with a tenon portion, the other side of each tower barrel petal is provided with a mortise portion, one of the tenon portions of each tower barrel petal is matched with the mortise portion of an adjacent tower barrel petal, and the plurality of tower barrel petals are connected into a tower barrel through the tenon portions and the mortise portions. The tower barrel valve is prefabricated in advance, and is assembled after being transported to a wind field site, so that the transportation problem of the large-diameter tower of the wind power generation equipment is solved, and the wind power generation equipment is simple in structure and easy to install.

Description

Split type tower barrel and wind generating set

Technical Field

The utility model relates to a split tower barrel and a wind generating set, and belongs to the technical field of wind power generation equipment.

Background

The tower is an important part of a wind generating set, and in a wind power plant, the higher tower can be used for increasing the capture capacity of wind resources, improving the income of wind power projects, and especially in the wind power tower market with high hubs in a low wind speed area.

The tower is usually of steel cylindrical structure, and each tower is transported to the site after being manufactured in a factory. When the tower height of the wind driven generator is continuously increased, the tower wall thickness which meets the requirements of transportation and installation strength is thick, the weight is heavy and the economic advantage is not achieved due to the limitation of the road transportation height and the requirement of the installation strength. When the diameter of the tower is designed to be large, the wall thickness can be designed to be thinner on the premise of meeting the installation strength, so that the weight of the tower is reduced, but the large-diameter tower occupies a large amount of carrying space and is difficult to transport.

Disclosure of Invention

The utility model aims at: the split tower and the wind generating set can solve the problem that the tower is difficult to transport.

The technical scheme adopted by the utility model is as follows:

the split tower barrel comprises a plurality of tower barrel petals, wherein one side of each tower barrel petal is provided with a tenon portion, the other side of each tower barrel petal is provided with a mortise portion, one of the tenon portions of each tower barrel petal is matched with the mortise portion of an adjacent tower barrel petal, and the plurality of tower barrel petals are connected into a tower barrel through the tenon portions and the mortise portions.

Alternatively, the tenon portion and the mortise portion are dovetail structures matched with each other.

Alternatively, the dovetail structure includes radially distributed inner and outer sides, the outer side having an area greater than an area of the inner side.

Optionally, a connecting piece is further arranged between the tenon part and the mortise part.

Alternatively, the tenon part is a tenon block, and the mortise part is a mortise block.

Alternatively, the tenon portion and the mortise portion each include a plurality of tenon portions.

Alternatively, a plurality of tenon portions are arranged on one side of the tower barrel valve, and a plurality of mortise portions are arranged on the other side of the tower barrel valve.

Alternatively, tenon portions and mortise portions are arranged on two sides of the tower barrel valve.

Alternatively, a plurality of tenon portions and mortise portions are arranged on the tower barrel valve at equal intervals.

A wind generating set comprises the split tower.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. according to the split type tower barrel, the tower barrel petals are prefabricated in advance, and are transported to a wind field site and then assembled, so that the transportation problem of a large-diameter tower of wind power generation equipment is solved, and the split type tower barrel is simple in structure and easy to install;

2. the split type tower barrel provided by the utility model has the advantages that the connection between the tower barrel petals is reliable, the stress distribution is uniform, the shearing strength of the connection part and the integral rigidity of the tower barrel can be improved, and the connection stability is further improved;

3. according to the wind generating set provided by the utility model, the split tower barrel is used for improving the diameter of wind power generation equipment so as to obtain better wind energy and better economic benefit.

Drawings

FIG. 1 is a schematic diagram of an embodiment of a split tower.

Fig. 2 is an enlarged view at a of fig. 1.

Fig. 3 is a front view of the tower lobe of fig. 1.

Fig. 4 is a top view of the tower lobe of fig. 1.

Fig. 5 is a schematic view of another embodiment of a split tower.

Fig. 6 is an enlarged view at B of fig. 5.

The marks in the figure: 1-tower barrel valve, 2-tenon part, 3-mortise part and 4-connecting piece.

Detailed Description

The present utility model will be described in detail with reference to the accompanying drawings.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

1-6, including polylith tower section of thick bamboo lamella 1, one side of tower section of thick bamboo lamella 1 is equipped with tenon portion 2, the opposite side of tower section of thick bamboo lamella 1 is equipped with mortise portion 3, wherein a portion tenon portion 2 of tower section of thick bamboo lamella 1 cooperates with mortise portion 3 of adjacent tower section of thick bamboo lamella 1, polylith tower section of thick bamboo lamella 1 passes through tenon portion 2 and mortise portion 3 connect into the tower section of thick bamboo.

Specifically, the single tower section of thick bamboo lamella 1 transportation is realized through polylith tower section of thick bamboo lamella 1, and occupation carrying space is littleer, can solve the problem that whole tower section of thick bamboo is difficult to the transportation. The tenon-and-mortise joint adopts a connection mode that concave-convex parts are combined on two components, the convex part is called a tenon, the concave part is called a mortise, and the tower barrel valve 1 can be conveniently positioned and assembled through the tenon part 2 and the mortise part 3; because the tenon part 2 of one tower barrel lobe 1 is supported by the mortise part 3 of the adjacent tower barrel lobe 1, compared with a mode of connecting only by using a connecting piece, the shear strength of the connecting part and the rigidity of the whole tower barrel can be improved; when a plurality of connection points are needed to be provided, the installation and the assembly are more convenient compared with the mode of a plurality of connecting pieces through the mortise and tenon mode fixedly arranged on the tower barrel valve 1; and the mortise and tenon structure has reversibility, and can be conveniently installed and detached. As a specific arrangement, the positions of the tenon portion 2 and the mortise portion 3 are correspondingly arranged.

As another specific embodiment, the tenon portion 2 and the mortise portion 3 are dovetail-shaped structures matched with each other. Dovetail-shaped structure is the most commonly used mortise and tenon joint mode, and the trapezoidal connecting surface is arranged between the tenon part 2 and the mortise part 3, so that the dovetail-shaped structure can perform interaction, and further has very reliable tensile strength. Can detain each other adjacent tower section of thick bamboo lamella 1 through the structure of dovetail, prevent that it from appearing becoming flexible, tenon portion 2 breaks away from mortise portion 3.

As another specific embodiment, the dovetail structure includes an inner side and an outer side that are radially distributed, the outer side having an area that is greater than an area of the inner side. The dovetail mortise and tenon joint with the dovetail-shaped structure is usually used for right-angle connection nodes, and the inner side surface and the outer side surface can be identical as the dovetail mortise and tenon joint linearly moves along the inner and outer directions corresponding to the inner side surface and the outer side surface. However, the tower is generally cylindrical, and from the perspective of equally dividing the tower by the tower segments 1, the area of the inner arc surface of the tower segments 1 is smaller than the area of the outer arc surface of the segments Yu Datong, and the circumferential cross section is generally in the shape of a sector ring.

When the assembly direction of the tower segments 1 is radial, if the inner side surface and the outer side surface are the same, during the process of assembling one tower segment 1 to other tower segments 1, the inner side surface of the dovetail structure of one tower segment 1 will abut against the outer side surface of the dovetail structure of other tower segments 1, so that the installation cannot be performed. Specifically, the projection of the dovetail structure in the axial direction is a fan ring, and the inner side surface of the dovetail structure is uniformly increased to the outer side surface, namely, the upper end surface of the dovetail structure is inclined upwards and outwards in the radial direction, and the lower end surface of the dovetail structure is inclined downwards and outwards in the radial direction. The above embodiment is just an alternative, and in a specific implementation, the assembly direction of the tower petals 1 may be axial.

As another specific embodiment, a connecting piece 4 is further disposed between the tenon portion 2 and the mortise portion 3. The mortise part 3 and the tenon part 2 can be connected more firmly through the connecting piece. Specifically, the connecting piece 4 is a bolt. The bolt can be convenient to install and detach, has reversibility and can be used for multiple times.

As another specific embodiment, the tenon portion 2 is a tenon block, and the mortise portion 3 is a mortise block. Wherein, tenon piece and mortise piece are fixed to be set up on tower section of thick bamboo lamella 1, further, tenon piece and mortise piece are located on the tower section of thick bamboo lamella 1 through the welding.

As another specific embodiment, the tenon portion 2 and mortise portion 3 each include a plurality of tenon portions. The joints can be dispersed through the tenon portions 2 and the mortise portions 3, so that shearing stress positions can be dispersed, and the overall rigidity of the tower barrel is improved.

As another specific embodiment, the tenon portions 2 are provided on one side of the tower barrel 1, and the mortise portions 3 are provided on the other side of the tower barrel 1. Specifically, through unilateral a plurality of tenon portion 2 and a plurality of mortise portion 3's setting, can make the cavity between the tenon portion 2 form new mortise portion 3, simultaneously, make protruding formation new tenon portion 2 between the mortise portion 3.

As another specific embodiment, tenon portions 2 and mortise portions 3 are arranged on two sides of the tower barrel valve 1. Mutual support between adjacent tower section of thick bamboo lamella 1 can be realized through tenon portion 2 and mortise portion 3 of both sides, and then the stability of connection can be increased.

As another specific embodiment, the plurality of tenon portions 2 and mortise portions 3 are provided at equal intervals on the tower valve 1. Even stress distribution can be realized through equidistant setting.

A wind generating set comprises the split tower.

The split tower barrel and the wind generating set provided by the embodiment have the following working processes:

1. according to the split type tower barrel, the tower barrel petals 1 are prefabricated in advance, and the tower barrel petals 1 are assembled after being transported to a wind field site, so that the transportation problem of a large-diameter tower of wind power generation equipment is solved, and the split type tower barrel is simple in structure and easy to install;

2. the split type tower barrel provided by the utility model has the advantages that the connection between the tower barrel petals 1 is reliable, the stress distribution is uniform, the shearing strength of the connection part and the integral rigidity of the tower barrel can be improved, and the connection stability is further improved;

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides a split tower section of thick bamboo which characterized in that: including polylith tower section of thick bamboo lamella (1), one side of tower section of thick bamboo lamella (1) is equipped with tenon portion (2), the opposite side of tower section of thick bamboo lamella (1) is equipped with mortise portion (3), one of them portion tenon portion (2) of tower section of thick bamboo lamella (1) cooperate with mortise portion (3) of adjacent tower section of thick bamboo lamella (1), the polylith tower section of thick bamboo lamella (1) are passed through tenon portion (2) and mortise portion (3) connect into a tower section of thick bamboo.

2. The split tower of claim 1, wherein: the tenon part (2) and the mortise part (3) are of dovetail structures which are matched with each other.

3. The split tower of claim 2, wherein: the dovetail structure comprises an inner side surface and an outer side surface which are distributed along the radial direction, and the area of the outer side surface is larger than that of the inner side surface.

4. The split tower of claim 1, wherein: and a connecting piece (4) is further arranged between the tenon part (2) and the mortise part (3).

5. The split tower of claim 1, wherein: the tenon portions (2) are tenon blocks, and the mortise portions (3) are mortise blocks.

6. The split tower of claim 1, wherein: the tenon part (2) and the mortise part (3) comprise a plurality of mortise parts.

7. The split tower as defined in claim 6, wherein: the tenon portions (2) are arranged on one side of the tower barrel valve (1), and the mortise portions (3) are arranged on the other side of the tower barrel valve (1).

8. The split tower as defined in claim 6, wherein: both sides of the tower barrel valve (1) are provided with tenon portions (2) and mortise portions (3).

9. The split tower as defined in claim 6, wherein: the tenon portions (2) and the mortise portions (3) are arranged on the tower barrel valve (1) at equal intervals.

10. A wind generating set, characterized in that: a split tower comprising any of claims 1-9.