CN216518408U

CN216518408U - Tower barrel fixing device for capacity increasing of wind turbine generator

Info

Publication number: CN216518408U
Application number: CN202123072624.9U
Authority: CN
Inventors: 赵振宁; 何艳伟; 肖建国; 吴佳润
Original assignee: Inner Mongolia Xiehe Zhalute Banner Wind Power Generation Co ltd
Current assignee: Inner Mongolia Xiehe Zhalute Banner Wind Power Generation Co ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-05-13
Anticipated expiration: 2031-12-08

Abstract

The utility model relates to a tower drum fixing device for wind turbine capacity expansion, which is used for fixing a tower drum based on an original foundation. The wind turbine generator system comprises a base, a capacity expansion cylinder, a wind turbine generator and a wind turbine generator, wherein the capacity expansion cylinder is a reducer cylinder, one end of the capacity expansion cylinder corresponds to the size of an original base cylinder, the other end of the capacity expansion cylinder corresponds to the size of the tower cylinder after capacity expansion transformation, and the wind turbine generator is not required to be re-located or dismantled from the original base.

Description

Tower barrel fixing device for capacity increasing of wind turbine generator

Technical Field

The utility model relates to the technical field of onshore wind turbine generator foundation reinforcement, in particular to a tower fixing device for capacity increasing of a wind turbine generator.

Background

At present, the running time of a part of wind generating sets installed and connected in the grid in China reaches or is close to the design life time of a fan, most of the wind generating sets with longer running time have poor health conditions and higher failure rate, and great difficulty is caused in the aspects of economy, safety, running and the like of some wind power plants, so the technical transformation of the old wind power plants is urgent work. In order to fully utilize rich wind energy resources of an old wind power plant, the old wind power plant which has been operated for years and is conditioned is technically improved, and a small-capacity fan unit is replaced by a large-capacity advanced unit, so that better economic benefit and social benefit are created. But the construction period is long and the reconstruction cost is high due to the re-site selection or the re-foundation construction in the reconstruction process.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In view of the defects and shortcomings in the prior art, the utility model provides a tower drum fixing device for wind turbine capacity expansion, which is used for fixing a tower drum based on an original foundation and solves the technical problems of long construction period and high reconstruction cost caused by site selection or foundation reconstruction in the prior art.

(II) technical scheme

In order to achieve the purpose, the utility model provides a tower cylinder fixing device for wind turbine capacity increasing, which has the following specific technical scheme:

the utility model provides a wind turbine generator system is tower section of thick bamboo fixing device for increase-volume, fixes a tower section of thick bamboo based on former basis, and fixing device includes:

the original foundation cylinder is arranged on the original foundation;

the dilatation section of thick bamboo is the reducing section of thick bamboo, and the dilatation section of thick bamboo is located on former basis section of thick bamboo, and the bottom links to each other with former basis section of thick bamboo, and the top links to each other with a tower section of thick bamboo for fix a tower section of thick bamboo.

Furthermore, dilatation bobbin base portion can be dismantled with former basic section of thick bamboo and be connected, and the top can be dismantled with tower section of thick bamboo bottom and be connected.

Further, the expansion cylinder comprises a top flange, a bottom flange and a reducer pipe;

the top flange is arranged at the large-opening end of the reducer pipe and is connected with the tower barrel through a bolt, and the bottom flange is arranged at the small-opening end of the reducer pipe and is connected with the original foundation barrel through a bolt.

Furthermore, a plurality of through holes for inserting bolts are correspondingly formed in the top flange and the bottom flange;

the through holes are uniformly distributed on 2 circles which are concentrically arranged, wherein one circle is positioned on the inner side of the reducer pipe, and the other circle is positioned on the outer side of the reducer pipe.

Further, the fixing device also comprises a supporting cylinder;

the periphery of an original basis section of thick bamboo and dilatation section of thick bamboo is located to the support cylinder cover, and the bottom links to each other with original basis, and the top links to each other with the top flange of a dilatation section of thick bamboo for carry out auxiliary stay to an original basis section of thick bamboo and dilatation section of thick bamboo.

Furthermore, the top of the supporting cylinder is also provided with a bearing plug sheet;

the bearing plug piece is arranged between the support cylinder and the top flange of the expansion cylinder and is fixedly connected with the support cylinder in a welding mode.

Further, the support cylinder comprises at least 2 arc-shaped steel plates, and the interconnection of the at least 2 arc-shaped steel plates can form a cylindrical structure.

Further, the periphery of the supporting cylinder is also provided with a plurality of reinforcing ribs which are uniformly arranged along the circumferential direction of the supporting cylinder.

(III) advantageous effects

The tower barrel fixing device for wind turbine capacity increase is characterized in that the tower barrel after capacity increase is fixed on the basis of an original foundation, the original foundation barrel and the capacity expansion barrel are arranged, the original foundation barrel is arranged on the original foundation, the capacity expansion barrel is arranged on the original foundation barrel, the bottom of the capacity expansion barrel is connected with the original foundation barrel, the top of the capacity expansion barrel is connected with the tower barrel, the tower barrel is fixed, the capacity expansion barrel is a diameter-changing barrel, the diameter of the root of the tower barrel after capacity increase is increased, the diameter-changing setting of the capacity expansion barrel can meet the fixing requirement of the tower barrel after capacity increase, the tower barrel fixing device can be reconstructed on the basis of the original foundation of an old wind field, the site selection or the foundation reconstruction is not needed, and the device has the technical characteristics of short construction period and low reconstruction cost.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application, and in which:

FIG. 1 is a schematic structural view of a tower fixing device for wind turbine generator system capacity expansion in an embodiment;

FIG. 2 is a sectional view taken along line A-A of the wind turbine generator system augmentation tower fixing device of FIG. 1;

FIG. 3 is a partial enlarged view of FIG. 2 at B;

FIG. 4 is a schematic diagram of a construction of a containment vessel in accordance with an embodiment;

FIG. 5 is a schematic structural diagram of a support cartridge in accordance with an embodiment.

[ description of reference ]

1. A tower drum; 2. original foundation;

3. a support cylinder; 31. reinforcing ribs;

4. a capacity expansion cylinder; 41. a top flange; 42. a reducer pipe; 43. a bottom flange; 44. a through hole; 45. Opening the gap;

5. an original base cylinder; 6. a bearing plug sheet.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the preferred embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the utility model. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In the description of the present embodiment, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be construed as limiting the scope of the present embodiment.

Referring to fig. 1 and fig. 2, according to an embodiment of the present application, a tower section of thick bamboo fixing device for land wind turbine generator tower capacity expansion fixes a tower section of thick bamboo 1 based on former basis 2, including former basic section of thick bamboo 5 and a capacity expansion section of thick bamboo 4. Wherein, former basis section of thick bamboo 5 is located on former basis 2, and a dilatation section of thick bamboo 4 is located on former basis section of thick bamboo 5, and the bottom links to each other with former basis section of thick bamboo 5, and the top links to each other with a tower section of thick bamboo 1 for fix a tower section of thick bamboo 1. In this embodiment, the capacity expansion cylinder 4 is the reducer pipe 42, and is suitable for the use of the capacity-expanded tower cylinder 1 without dismantling or rebuilding the original foundation 2, and has the technical characteristics of short construction period and low capacity expansion and reconstruction cost.

It can be understood that former basis 2 indicates that wind turbine generator system is not used for the ground of fixed tower section of thick bamboo 1 before the dilatation, and the 1 root diameter grow of tower section of thick bamboo of wind turbine generator system after the dilatation, and former basis 2 can not satisfy the fixed demand of tower section of thick bamboo 1 after the dilatation, and this embodiment is through setting up dilatation section of thick bamboo 4, and dilatation section of thick bamboo 4 is reducing pipe 42, is suitable for the tubular object of connecting the different diameters, can satisfy the fixed demand of tower section of thick bamboo 1 after the dilatation. During specific construction, be fixed in former basic section of thick bamboo 5 on former basis 2, then with dilatation section of thick bamboo 4 be fixed in former basic section of thick bamboo 5 on to be fixed in a dilatation section of thick bamboo 4 with tower section of thick bamboo 1 on in order to fix tower section of thick bamboo 1, the installation of being convenient for has higher installation effectiveness.

The bottom of the expansion cylinder 4 is detachably connected with the original foundation cylinder 5, and the top of the expansion cylinder is detachably connected with the bottom of the tower cylinder 1. The detachable connection can be realized through bolts or other convenient detachable modes such as clamping and the like. In this embodiment, dilatation section of thick bamboo 4 and former basic section of thick bamboo 5 and the detachable connected mode of a tower section of thick bamboo 1, the job site of being convenient for installs the regulation, makes things convenient for the staff to operate, and the installation degree of difficulty is low, and has higher installation effectiveness.

In this embodiment, the expansion cylinder 4 includes a top flange 41, a bottom flange 43 and a reducer pipe 42, the top flange 41 is disposed at a large opening end of the reducer pipe 42, the bottom flange 43 is disposed at a small opening end of the reducer pipe 42, the top flange 41 is connected to the tower cylinder 1, and the bottom flange 43 is connected to the original foundation cylinder 5.

As shown in fig. 4, the diameters of the two ends of the reducer 42 are different, and are respectively defined as a large opening end and a small opening end, the diameter of the large opening end is larger than that of the small opening end, and the reducer is often used as a transition device, and the two ends are used for connecting tubular objects with different diameters. The reducer pipe 42 has a tapered tubular structure or a "dome-shaped" structure, and the reducer pipe 42 in this embodiment has a tapered tubular structure, which is expanded into an arc-shaped plate, as an example. The engineering technician calculates the size of the arc-shaped plate in advance according to the size of the reducer pipe 42, carries out blanking according to the calculated size of the arc-shaped plate, rolls the arc-shaped plate into a cone shape through a roller machine, and then welds the longitudinal joint. The top flange 41 and the bottom flange 43 are fixedly connected with the reducer pipe 42 in a welding mode.

As one embodiment, the top flange 41 and the tower barrel 1, the bottom flange 43 and the original base barrel 5 are connected by bolts, a plurality of through holes 44 for inserting bolts are correspondingly arranged on the top flange 41 and the bottom flange 43, the plurality of through holes 44 are uniformly distributed on 2 concentrically arranged circumferences, one circumference is located on the inner side of the reducer pipe 42, and the other circumference is located on the outer side of the reducer pipe 42.

As shown in fig. 4, the top flange 41 is circumferentially provided with 2 circumferential through holes 44, and the 2 circumferences are concentrically arranged, wherein one circumference is located at the inner side of the reducer pipe 42, and the other circumference is located at the outer side of the reducer pipe 42. The through holes 44 of the bottom flange 43 are arranged in the same manner as the through holes 44 of the top flange 41, and a description thereof will not be repeated. In this embodiment, in order to facilitate the installation of the capacity expansion cylinder 4 and the tower tube 1, the top flange 41 and the connecting bolt of the tower tube 1 are installed in a manner of inserting from the bottom, an opening 45 is correspondingly formed in the end face of one side of the top flange 41, which is far away from the tower tube 1, the opening 45 is located at the through hole 44, and the nut of the bolt is placed in the opening 45.

Further, referring to fig. 1, fig. 2 and fig. 5, the fixing device further includes a supporting cylinder 3, the supporting cylinder 3 is sleeved on the peripheries of the original foundation cylinder 5 and the expansion cylinder 4, the bottom of the supporting cylinder is connected with the original foundation 2, and the top of the supporting cylinder is connected with a top flange 41 of the expansion cylinder 4, so as to support the original foundation cylinder 5 and the expansion cylinder 4 in an auxiliary manner.

It can be understood that, dilatation section of thick bamboo 4 supports a tower section of thick bamboo 1, the most gravity of a tower section of thick bamboo 1 concentrates on dilatation section of thick bamboo 4, and the back taper structural design of dilatation section of thick bamboo 4 has lower support intensity, support if rely on dilatation section of thick bamboo 4 alone, dilatation section of thick bamboo 4 is very easily damaged, consequently, introduce and support section of thick bamboo 3 and carry out the auxiliary stay, tower section of thick bamboo 1 is through supporting section of thick bamboo 3 to the effort of dilatation section of thick bamboo 4 act on former basis 2, dilatation section of thick bamboo 4 and former basis section of thick bamboo 5 only receive very little effort, it is not fragile, and then, fixing device's safety in utilization has been guaranteed.

Referring to fig. 3, the top of the support cylinder 3 is further provided with a bearing plug 6, and the bearing plug 6 is disposed between the support cylinder 3 and the top flange 41 of the expansion cylinder 4.

Wherein, load chock plug 6 is used for filling the space between a dilatation section of thick bamboo 4 and a supporting cylinder 3, after dilatation section of thick bamboo 4 and supporting cylinder 3 installation are accomplished, with load chock plug 6 in the space between a dilatation section of thick bamboo 4 and a supporting cylinder 3, load chock plug 6 adopts welded mode fixed connection with a supporting cylinder 3, along with the section-by-section installation of a tower section of thick bamboo 1, dilatation section of thick bamboo 4 atress crescent, load chock plug 6 evenly transmits the effort that dilatation section of thick bamboo 4 bore to a supporting cylinder 3, avoid dilatation section of thick bamboo 4 or supporting cylinder 3 local atress too big lead to damaging.

More specifically, referring to fig. 5, the support cylinder 3 of the present embodiment includes at least 2 arc-shaped steel plates, and the at least 2 arc-shaped steel plates are connected to each other to form a cylindrical structure.

The mode of setting up of at least 2 arc steel sheets 21 of a support section of thick bamboo 3 in this embodiment aim at being convenient for installation and transportation, and the concrete quantity setting of arc steel sheet needs to be formulated according to the transportation condition. By way of example, the number of the arc-shaped steel plates in the embodiment is 2, the corresponding arc angle is 180 °, and the 2 arc-shaped steel plates are connected with each other to form a cylindrical structure. 2 arc steel sheets surround the periphery of the expansion cylinder 4 and the support cylinder 3 on the construction site, and then 2 arc steel sheets are fixedly connected in a welding mode, so that the steel pipe has good connection strength.

Further, the periphery of the support cylinder 3 of the present embodiment is further provided with a plurality of reinforcing ribs 31, and the plurality of reinforcing ribs 31 are uniformly arranged along the circumferential direction of the support cylinder 3.

The extending direction of the reinforcing ribs 31 is consistent with the height direction of the supporting cylinder 3, and two ends of the reinforcing ribs do not protrude from the upper end face and the lower end face of the supporting cylinder 3, so that the supporting strength of the supporting cylinder 3 is increased. The arc-shaped steel plate and the reinforcing ribs 31 adopt a factory prefabricating processing mode, the reinforcing ribs 31 are welded on the arc-shaped steel plate, then the arc-shaped steel plate is sent to a construction site to be installed, the operation is convenient and fast, the construction time of the construction site is greatly shortened, and the capacity increasing transformation efficiency of the wind turbine generator is improved.

The concrete structure of the tower section of thick bamboo fixing device for wind turbine generator system increase-volume of this embodiment carries out increase-volume transformation based on former basis 2, can make full use of the current resource of old wind-powered electricity generation field, and tower section of thick bamboo 1 after the increase-volume need not to rebuild former basis 2 on being fixed in former basis 2 through an increase-volume section of thick bamboo 4 and former basis section of thick bamboo 5, has that construction cycle is short, increase-volume transformation advantage with low costs.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention and the inventive concept within the technical scope of the present invention.

Claims

1. The utility model provides a tower section of thick bamboo fixing device for wind turbine generator system increase-volume, fixes tower section of thick bamboo (1) based on former basis (2), its characterized in that, fixing device includes:

the original foundation cylinder (5) is arranged on the original foundation (2);

the expansion cylinder (4) is a variable diameter cylinder, the expansion cylinder (4) is arranged on the original basic cylinder (5), the bottom of the expansion cylinder is connected with the original basic cylinder (5), and the top of the expansion cylinder is connected with the tower cylinder (1) and used for fixing the tower cylinder (1).

2. The tower fixing device for wind turbine capacity expansion according to claim 1, wherein the bottom of the capacity expansion cylinder (4) is detachably connected to the original base cylinder (5), and the top of the capacity expansion cylinder is detachably connected to the bottom of the tower (1).

3. The tower fixing device for wind turbine capacity augmentation according to claim 2, characterized in that the capacity enlarging cylinder (4) comprises a top flange (41), a bottom flange (43) and a reducer pipe (42);

the top flange (41) is arranged at the large-opening end of the reducer pipe (42) and connected with the tower barrel (1) through bolts, and the bottom flange (43) is arranged at the small-opening end of the reducer pipe (42) and connected with the original foundation barrel (5) through bolts.

4. The tower fixing device for wind turbine capacity increasing as claimed in claim 3, wherein a plurality of through holes for inserting the bolts are correspondingly formed on the top flange (41) and the bottom flange (43);

the through holes are uniformly distributed on 2 circles which are concentrically arranged, wherein one circle is positioned on the inner side of the reducer pipe (42), and the other circle is positioned on the outer side of the reducer pipe (42).

5. The tower fixing device for wind turbine capacity augmentation according to claim 3, characterized in that it further comprises a supporting cylinder (3);

the supporting cylinder (3) is sleeved on the periphery of the original basic cylinder (5) and the expansion cylinder (4), the bottom of the supporting cylinder is connected with the original base (2), the top of the supporting cylinder is connected with the top flange (41) of the expansion cylinder (4), and the supporting cylinder is used for supporting the original basic cylinder (5) and the expansion cylinder (4) in an auxiliary mode.

6. The tower fixing device for wind turbine capacity increasing as claimed in claim 5, wherein a bearing plug piece (6) is further arranged at the top of the supporting cylinder (3);

the bearing plug piece (6) is arranged between the supporting cylinder (3) and the top flange (41) of the expansion cylinder (4) and is fixedly connected with the supporting cylinder (3) in a welding mode.

7. The tower fixing device for wind turbine capacity expansion according to claim 5, wherein the support cylinder (3) comprises at least 2 arc-shaped steel plates, and the interconnection of at least 2 arc-shaped steel plates can form a cylindrical structure.

8. The tower fixing device for wind turbine capacity increasing according to claim 7, wherein the supporting cylinder (3) is further provided with a plurality of reinforcing ribs (31) at the periphery thereof, and the plurality of reinforcing ribs (31) are uniformly arranged along the circumferential direction of the supporting cylinder (3).