CN217783678U

CN217783678U - Large-megawatt wind turbine generator set foundation transverse pile structure and large-megawatt wind turbine generator set

Info

Publication number: CN217783678U
Application number: CN202221885191.0U
Authority: CN
Inventors: 王之东; 董晓川; 冯爽
Original assignee: Guodian United Power Technology Co Ltd
Current assignee: Guodian United Power Technology Co Ltd
Priority date: 2022-07-20
Filing date: 2022-07-20
Publication date: 2022-11-11
Anticipated expiration: 2032-07-20

Abstract

The utility model discloses a horizontal pile structure in big megawatt wind turbine generator system basis and big megawatt wind turbine generator system relates to wind turbine generator system design field, the horizontal pile structure in big megawatt wind turbine generator system basis includes: the platform column is arranged at the bottom of the large megawatt wind turbine; the bottom plate is attached to the ground in parallel, the side part of the bottom plate is an inclined edge, and the pillar is embedded in the center of the bottom plate; the transverse pile is arranged at the bottom of the bottom plate and embedded into the bottom plate, one end of the transverse pile is abutted with the column to form support for the column, the other end of the transverse pile is exposed out of the bottom plate, and the projection of the transverse pile on the ground is a ray with the column as a starting point. By improving the structure of the transverse pile, the overall stress capacity and stress stability of the large megawatt wind turbine foundation are effectively improved and the use safety is improved under the condition that the wind turbine foundation is not increased.

Description

Large-megawatt wind turbine generator set foundation transverse pile structure and large-megawatt wind turbine generator set

Technical Field

The utility model relates to a wind turbine generator system design field specifically relates to a horizontal stake structure of big megawatt wind turbine generator system basis and a big megawatt wind turbine generator system.

Background

With the continuous progress of science and technology and the continuous increase of the requirements of people on energy, various clean energy sources are continuously excavated and applied, for example, wind turbines are more widely applied.

The wind power foundation is a main bearing structure of the whole impeller, the wind turbine generator and the tower, and the whole load of the wind power structure is transferred to the foundation under various wind conditions and unit operation conditions and is diffused to the foundation through the foundation. With the continuous development of the wind power field in recent years, the single machine capacity of the wind power generator set is larger and larger, the blades are longer and longer, and the tower barrel is higher and higher, so that the load and the weight of the whole wind power structure are increased continuously, the requirement on the structural stability of the wind power generator set is higher and higher, and the structural stability of the wind power generator set is directly related to the wind power foundation.

If the traditional wind turbine generator expansion method is adopted, along with the increase of structural load, the requirement on the bearing capacity of the foundation is higher, and the size of the foundation needs to be increased continuously, so that the construction cost, the steel bar and concrete cost, the construction cost and the occupied land cost of the wind turbine foundation are increased continuously. The conventional extension foundation cannot meet the safety requirement, and the construction period and the electricity consumption cost are rapidly increased by the traditional mode of increasing the number of piles and increasing the depth of the piles.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned technical problem that exists among the prior art, the embodiment of the utility model provides a horizontal pile structure of big megawatt wind turbine generator system basis is through improving horizontal pile structure to under the condition that does not increase the wind turbine generator system basis, effectively improve whole atress ability and the force stability of big megawatt wind turbine generator system basis, improve the safety in utilization.

In order to realize the above object, an embodiment of the utility model provides a horizontal pilework in big megawatt wind turbine generator system basis, horizontal pilework in big megawatt wind turbine generator system basis includes: the platform column is arranged at the bottom of the large megawatt wind turbine; the bottom plate is attached to the ground in parallel, the side part of the bottom plate is an inclined edge, and the pillar is embedded in the center of the bottom plate; the transverse pile is arranged at the bottom of the bottom plate and embedded into the bottom plate, one end of the transverse pile is abutted to the column to form support for the column, the other end of the transverse pile is exposed out of the bottom plate, and the projection of the transverse pile on the ground is a ray with the column as a starting point.

Preferably, the inclination of the inclined edge of the bottom plate is 10-60 °.

Preferably, the number of the transverse piles is greater than or equal to 6, and the transverse piles are uniformly arranged along the circumference of the bottom plate and radiate outwards.

Preferably, the projection of the transverse pile on the ground is trapezoidal, the long side of the transverse pile is in contact with the column, and the short side of the transverse pile is located outside the bottom plate.

Preferably, the ratio of the long side to the short side is 1.5.

Preferably, the bottom plate is provided with groove bodies in one-to-one correspondence with the transverse piles, the groove bodies are matched with the transverse piles, and the transverse piles are fixedly arranged on the bottom plate through the groove bodies.

Preferably, the cross-section of the transverse pile is in a right trapezoid shape, and right-angle sides of the transverse pile are respectively attached to the ground and the table column.

Preferably, the inclination of the hypotenuse of the transverse pile is 10 ° to 60 °.

Preferably, the oblique edge of the transverse pile coincides with the oblique edge of the base plate.

On the other hand, the embodiment of the utility model provides a still provide a big megawatt wind turbine generator system, big megawatt wind turbine generator system includes the embodiment of the utility model provides a horizontal pile structure of big megawatt wind turbine generator system basis.

Through the technical scheme provided by the utility model, the utility model discloses following technological effect has at least:

through improving the structure of traditional wind turbine foundation, mainly be planar structure with traditional wind turbine foundation and improve into spatial structure to on the basis that does not increase wind turbine foundation, effectively improve wind turbine foundation's atress ability and stress stability, improve wind turbine foundation's holistic safety in utilization.

Other features and advantages of embodiments of the present invention will be described in detail in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention, but do not constitute a limitation of the embodiments of the invention. In the drawings:

FIG. 1 is a schematic structural diagram of a horizontal pile structure of a large megawatt wind turbine foundation provided by an embodiment of the present invention

Fig. 2 is a schematic structural diagram of a horizontal pile structure of a foundation of a large megawatt wind turbine provided by a second embodiment of the invention;

fig. 3 is a schematic shape diagram of a transverse pile in a transverse pile structure of a foundation of a large megawatt wind turbine provided by an embodiment of the present invention;

fig. 4 is a schematic shape diagram of a horizontal pile in a horizontal pile structure of a foundation of a large megawatt wind turbine provided by a second embodiment of the present invention.

Description of the reference numerals

100 columns; 200 a base plate;

300 transverse piles.

Detailed Description

The following describes in detail embodiments of the present invention with reference to the accompanying drawings. It is to be understood that the description herein is provided for purposes of illustration and explanation, and is not intended to limit the embodiments of the invention.

The terms "system" and "network" in the embodiments of the present invention may be used interchangeably. The term "plurality" means two or more, and in view of this, the term "plurality" may also be understood as "at least two" in the embodiments of the present invention. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" generally indicates that the preceding and succeeding related objects are in an "or" relationship, unless otherwise specified. In addition, it is to be understood that the terms first, second, etc. used in the description of the embodiments of the present invention are used for distinguishing between the descriptions and not for indicating or implying any relative importance or order.

Please refer to fig. 1 and 2, an embodiment of the present invention provides a horizontal pile structure of a large megawatt wind turbine foundation, which includes: the platform column 100 is arranged at the bottom of the large megawatt wind turbine generator; the base plate 200 is attached to the ground in parallel, the side part of the base plate 200 is a bevel edge, and the pillar 100 is embedded in the center of the base plate 200; the transverse piles 300 are arranged at the bottom of the bottom plate 200 and embedded in the bottom plate 200, one ends of the transverse piles 300 are abutted to the pillars 100 to form support for the pillars, the other ends of the transverse piles are exposed out of the bottom plate 200, and the projection of the transverse piles 300 on the ground is a ray with the pillars 100 as a starting point.

In a possible implementation manner, the embodiment of the utility model provides a horizontal stake structure of big megawatt wind turbine foundation includes 4 horizontal stake 300, set up the east-west north direction at bottom plate 200 respectively, in order to form the stable support to the column 100, and simultaneously, through setting up the lateral part of bottom plate 200 to the hypotenuse that has certain gradient, thereby make bottom plate 200 better to the supporting effect of column 100, realize more stable and reliable support, it is required to explain that, the gradient of the hypotenuse of bottom plate 200 lateral part can set up or adjust according to actual demand, in order to provide best basic eccentric load and foundation plate internal force, do not do the restriction here.

Preferably, in the embodiment of the present invention, the inclined angle of the bottom plate 200 is 10 ° to 60 °.

Because the embodiment of the utility model provides a be applied to big megawatt wind turbine generator system, its total weight is great consequently, in order to provide sufficient atress structure in the embodiment of the utility model provides an, the quantity more than or equal to 6 of horizontal stake 300, horizontal stake 300 is followed the circumference of bottom plate 200 evenly sets up and outwards radiates.

The embodiment of the utility model provides an in, through adopting horizontal stake 300 of 6 at least, can further improve wind turbine generator system's basic atress effect, realize stable support result, simultaneously through with horizontal stake 300 evenly distributed on bottom plate 200's circumference to make wind turbine generator system's whole atress stable, and the biased condition of atress can not appear.

However, in the practical application process, the conventional transverse piles are often rectangular parallelepiped, and for the portion of the transverse pile located in the bottom plate 200, the stress is uniform and stable due to the support of the ground and the bottom plate 200, and the portion outside the bottom plate 200 is stressed greatly, so that the transverse pile is easily damaged.

In order to solve the above technical problem, please refer to fig. 3, in the embodiment of the present invention, a projection of the horizontal pile 300 on the ground is a trapezoid, a long side of the horizontal pile contacts the pillar 100, and a short side of the horizontal pile is located outside the bottom plate 200.

Preferably, in the embodiment of the present invention, the ratio of the long side to the short side is 1.5.

In a possible embodiment, the transversal peg 300 is arranged in a trapezoidal configuration in projection on the ground, in particular with the field side of the trapezoid in contact with the column 100 and the shorter side of the trapezoid outside the base plate 200, for example, preferably with a ratio of 2.

The embodiment of the utility model provides an in, through setting up horizontal stake 300 into trapezoidal structure to can make horizontal stake 300's whole atress ability stronger, it is lower to damage the risk, has further improved wind turbine generator system's basic stability, has improved whole security.

In the embodiment of the present invention, a groove (not shown) is provided on the bottom plate 200 corresponding to the horizontal piles 300 one-to-one, the groove is matched with the horizontal piles 300, and the horizontal piles 300 are fixed on the bottom plate 200 through the groove.

In a specific implementation process, after the bottom plate 200 is poured, a groove body is further dug at the edge of the bottom plate 200, specifically, the groove body is matched with the shape of the transverse pile 300 so as to embed the transverse pile 300 into the bottom plate 200, at this time, the square reinforcement cage penetrating through the bottom plate 200 to the length of the transverse pile 300 is bound from the pillar 100 inside the foundation, and then the foundation reinforcement cage and the reinforcement cage of the transverse pile 300 are integrally poured, so that the installation configuration of the transverse pile 300 is realized.

Referring to fig. 4, in the embodiment of the present invention, the cross section of the horizontal pile 300 is a right trapezoid, and the right-angled side of the horizontal pile 300 is respectively attached to the ground and the pillar 100.

Preferably, in the embodiment of the present invention, the inclination of the inclined side of the lateral pile 300 is 10 ° to 60 °.

In a possible embodiment, in order to further improve the stress capability of the transverse pile 300 and improve the stress stability of the whole wind turbine, the transverse pile 300 is further improved in the vertical direction, the cross section of the transverse pile 300 in the vertical direction is set to be a right trapezoid, and two straight sides of the right trapezoid are respectively attached to the ground and the column 100. Of course, in the embodiment of the present invention, in order to maximize the force-bearing capacity and the force-bearing stability of the horizontal pile 300, the horizontal pile 300 can be set to be trapezoidal in the projection on the ground and also trapezoidal in the cross section in the vertical direction, so as to maximize the overall force-bearing capacity thereof.

In order to guarantee holistic force stability, avoid the shape of horizontal stake 300 to cause the influence to the force stability of bottom plate 200, right trapezoid's hypotenuse gradient scope is 10-60, and is further preferred in the embodiment of the utility model, horizontal stake 300 the hypotenuse with the hypotenuse coincidence of bottom plate to guaranteeing the overall structure integration, realizing on the basis of biggest stress structure, having improved wind turbine generator system's whole atress performance, improved the safety in utilization.

Further, the embodiment of the utility model provides a still provide a big megawatt wind turbine generator system, big megawatt wind turbine generator system includes the embodiment of the utility model provides a horizontal pilework in big megawatt wind turbine generator system basis.

Above has described in detail the optional implementation way of the embodiment of the present invention with reference to the attached drawings, however, the embodiment of the present invention is not limited to the specific details in the above implementation way, and in the technical idea scope of the embodiment of the present invention, it can be to the technical solution of the embodiment of the present invention carry out multiple simple variants, and these simple variants all belong to the protection scope of the embodiment of the present invention.

It should be noted that the various features described in the foregoing embodiments may be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the embodiments of the present invention do not separately describe various possible combinations.

In addition, various different implementation manners of the embodiments of the present invention can be combined arbitrarily, and as long as it does not violate the idea of the embodiments of the present invention, it should be considered as the disclosure of the embodiments of the present invention.

Claims

1. The utility model provides a horizontal pile structure of big megawatt wind turbine generator system basis which characterized in that, the horizontal pile structure of big megawatt wind turbine generator system basis includes:

the platform column is arranged at the bottom of the large megawatt wind turbine;

the bottom plate is attached to the ground in parallel, the side part of the bottom plate is a bevel edge, and the pillar is embedded in the center of the bottom plate;

the transverse pile is arranged at the bottom of the bottom plate and embedded into the bottom plate, one end of the transverse pile is abutted with the column to form support for the column, the other end of the transverse pile is exposed out of the bottom plate, and the projection of the transverse pile on the ground is a ray with the column as a starting point.

2. The lateral pile structure of foundation of large megawatt wind turbine generator set according to claim 1, characterized in that the inclination of the inclined edge of the bottom plate is 10 ° -60 °.

3. The large megawatt wind turbine foundation transverse pile structure of claim 1, wherein the number of the transverse piles is equal to or greater than 6, and the transverse piles are uniformly arranged along the circumference of the bottom plate and radiate outwards.

4. The large megawatt wind turbine foundation transverse pile structure of claim 1, wherein the projection of the transverse pile on the ground is trapezoidal, the long side of the transverse pile is in contact with the pillar, and the short side is located outside the bottom plate.

5. The large megawatt wind turbine foundation lateral pile structure of claim 4, wherein the ratio of the long side to the short side is 1.5.

6. The large megawatt wind turbine foundation transverse pile structure as claimed in claim 1, wherein the bottom plate is provided with groove bodies corresponding to the transverse piles one to one, the groove bodies are matched with the transverse piles, and the transverse piles are fixedly arranged on the bottom plate through the groove bodies.

7. The large megawatt wind turbine foundation transverse pile structure of claim 1, wherein the cross section of the transverse pile is a right trapezoid, and right-angled sides of the transverse pile are respectively attached to the ground and the table post.

8. The large megawatt wind turbine foundation transverse pile structure of claim 7, wherein the inclination of the hypotenuse of the transverse pile is 10 ° -60 °.

9. The large megawatt wind turbine foundation transverse pile structure of claim 8, wherein the oblique edge of the transverse pile coincides with the oblique edge of the bottom plate.

10. A large megawatt wind turbine comprising the large megawatt wind turbine foundation lateral pile structure of any of claims 1-9.