CN210122729U - Wind driven generator foundation - Google Patents

Abstract

The utility model relates to a power generation technical field provides a aerogenerator basis. The wind driven generator foundation comprises an annular column (1), a plurality of main rib beams (2), a plurality of secondary rib beams (3), an annular plate (4) and a plurality of anchor bolts (5). The annular column (1) is a hollow column body, the inner ends of the main rib beams (2) are uniformly connected to the outer wall of the lower part of the annular column (1) at intervals, and the outer ends of the main rib beams (2) extend along the radial direction of the annular column (1); a plurality of anchor bolts (5) are uniformly arranged at the top of the annular column (1) at intervals; each secondary rib beam (3) is connected between two adjacent main rib beams (2); the inner wall of the annular plate (4) is fixed with the outer wall of the annular column (1), and the annular plate (4) is positioned above a structure formed by the main rib beam (2) and the secondary rib beam (3). The foundation of the wind driven generator can ensure uniform stress transmission and reduce the construction cost at the same time.

Description

Wind driven generator foundation

Technical Field

The utility model relates to a power generation technical field, in particular to aerogenerator basis.

Background

Wind energy is a renewable resource that is currently widely utilized. The basic principle of wind power generation is to drive an impeller of a fan (a wind driven generator) to rotate through wind, convert wind energy into kinetic energy, and then convert the kinetic energy into electric energy. In order to ensure the normal and stable operation of the wind driven generator, the wind turbine must be fixed on the wind driven generator base. Because the height of the fan is higher and bears larger fan load, the foundation of the wind driven generator needs to be firm and reliable and the stress is reasonable.

At present, a common wind driven generator foundation adopts an enlarged plate type or a beam plate type with a solid structure, the upper part of the enlarged plate type wind driven generator foundation is cylindrical, the lower part of the enlarged plate type wind driven generator foundation is circular truncated cone-shaped, and reinforcing steel bars are filled with concrete to form the wind driven generator foundation. The center of beam slab formula aerogenerator basis is cylindrical, and the periphery is for highly being less than central cylinder's ring, builds the reinforcing bar between the inner wall of ring and the outer wall of central cylinder in order to form a plurality of even beam slab of interval, and the height of this beam slab reduces along the direction of central cylinder to peripheral ring gradually, thereby all fills the concrete between the reinforcing bar and form aerogenerator basis.

In the process of implementing the present invention, the inventor finds that the prior art has at least the following problems:

the steel bar filling of the enlarged plate type wind driven generator foundation needs to use a large amount of concrete, and the construction cost is high. Although the usage amount of concrete is reduced in the beam-slab type wind driven generator foundation, the distance between the reinforcing steel bars of the beam-slab type wind driven generator foundation is small, and the whole wind driven generator foundation is not uniformly stressed due to the fact that the concrete is not filled in the concrete.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a wind driven generator foundation to reduce engineering cost when guaranteeing that the atress transmission is even. The technical scheme of the utility model as follows:

a wind power generator foundation includes an annular column, a plurality of main rib beams, a plurality of sub rib beams, an annular plate, and a plurality of anchor bolts,

the annular column is a hollow column body, the inner ends of the main rib beams are uniformly connected to the outer wall of the lower part of the annular column at intervals, and the outer ends of the main rib beams extend along the radial direction of the annular column;

the anchor bolts are uniformly arranged at the tops of the annular columns at intervals;

each secondary rib beam is connected between two adjacent main rib beams;

the annular inner wall is fixed with the outer wall of the annular column, and the annular plate is positioned above a structure formed by the main rib beam and the secondary rib beam.

Optionally, the outer wall of the annular column is connected at regular intervals with a plurality of lugs, and the main rib beam is connected with the annular column through the lugs.

Optionally, the upper and lower ends of the plurality of lugs are flush with the annular post.

Optionally, the bottom of each main rib is flush with the bottom of the annular column, and the height of each main rib is less than the height of the annular column.

Optionally, each secondary rib has a height less than the height of the primary rib, and the top of the secondary rib is flush with the top of the primary rib.

Optionally, two ends of each secondary rib beam are connected to the side walls of two adjacent primary rib beams, each secondary rib beam is arc-shaped, the plurality of secondary rib beams form a closed circle, and the center of the closed circle coincides with the center of the annular column.

Optionally, the top of the annular plate is flush with the tops of the primary and secondary ribs.

Optionally, the tops of the primary and secondary ribs are embedded within the interior of the annular plate.

Optionally, the thickness of the annular plate is less than the height of the secondary rib.

Optionally, the wind turbine foundation is an integral steel bar pouring structure.

The beneficial effects of the embodiment of the application at least comprise:

a plurality of main rib girders of the wind driven generator foundation of the embodiment of the application are uniformly connected to the outer wall of the annular column at intervals, so that the force applied to the main rib girders can be uniformly transmitted to the annular column. Each secondary rib beam is connected between two adjacent main rib beams, so that the uniform stress among the main rib beams can be ensured, and the stress can be transmitted to the annular column through the main rib beams. The inner wall of annular plate is together fixed with the outer wall of cyclic annular post, and the annular plate is located the top of the structure that main, inferior girt formed to at the wind-force motor operation in-process, the power transmission that the annular plate will receive is for main girt and inferior girt, and inferior girt will exert oneself and transmit for main girt, and main girt will exert oneself and transmit for cyclic annular post, makes the even, the biography power of whole aerogenerator basis atress clear and definite. The annular column is a hollow column body, and a plurality of anchor bolts are uniformly connected to the top of the annular column at intervals, so that the wind driven generator foundation is connected with the tower barrel of the fan through the plurality of anchor bolts, the whole wind driven generator foundation supports the tower barrel, the stress transmission of the whole wind driven generator foundation is uniform, the consumption of concrete is reduced to a large extent, and the construction cost is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required in the description of the embodiments will be briefly described below.

FIG. 1 is a schematic structural diagram of a wind turbine foundation according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a wind turbine foundation according to an embodiment of the present disclosure;

FIG. 3 is a schematic top view of a wind turbine foundation according to an embodiment of the present disclosure;

fig. 4 is a schematic bottom view of a wind turbine foundation according to an embodiment of the present application.

The reference numbers in the figures are:

1-ring column

2-main rib beam;

3-secondary rib beam;

4-annular plate;

5-anchor bolt;

6-protruding part.

Detailed Description

The basic idea of the application is to provide a novel wind generator foundation. In an embodiment of the present application, the wind turbine foundation includes an annular column, a plurality of primary rib beams, a plurality of secondary rib beams, an annular plate, and a plurality of anchor bolts. The annular column is a hollow column body, the inner ends of the main rib beams are uniformly connected to the outer wall of the lower part of the annular column at intervals, and the outer ends of the main rib beams extend along the radial direction of the annular column; a plurality of anchor bolts are uniformly arranged at the top of the annular column at intervals; each secondary rib beam is connected between two adjacent main rib beams; the inner wall of the annular plate is fixed with the outer wall of the annular column, and the annular plate is positioned above the structure formed by the main rib beam and the secondary rib beam.

A plurality of main rib girders of the wind driven generator foundation of the embodiment of the application are uniformly connected to the outer wall of the annular column at intervals, so that the force applied to the main rib girders can be uniformly transmitted to the annular column. Each secondary rib beam is connected between two adjacent main rib beams, so that the uniform stress among the main rib beams can be ensured, and the stress can be transmitted to the annular column through the main rib beams. The inner wall of annular plate is together fixed with the outer wall of cyclic annular post, and the annular plate is located the top of the structure that main, inferior girt formed to at the wind-force motor operation in-process, the power transmission that the annular plate will receive is for main girt and inferior girt, and inferior girt will exert oneself and transmit for main girt, and main girt will exert oneself and transmit for cyclic annular post, makes the even, the biography power of whole aerogenerator basis atress clear and definite. The annular column is a hollow column body, the anchor bolts are uniformly arranged at the top of the annular column at intervals, so that the wind driven generator foundation is connected with the tower drum of the fan through the anchor bolts, the whole wind driven generator foundation supports the tower drum, the consumption of concrete is reduced to a greater extent while the stress transmission of the whole wind driven generator foundation is ensured to be uniform, the construction cost is reduced,

in order to make the technical solutions and advantages of the present application clearer, the following will describe the embodiments of the present application in further detail with reference to the accompanying drawings.

The utility model provides a wind driven generator foundation, and a figure 1 is a schematic structural diagram of the wind driven generator foundation provided by the embodiment of the application; FIG. 2 is a schematic structural diagram of a wind turbine foundation according to an embodiment of the present disclosure; FIG. 3 is a schematic top view of a wind turbine foundation according to an embodiment of the present disclosure; fig. 4 is a schematic bottom view of a wind turbine foundation according to an embodiment of the present application.

Referring to fig. 1-2, the wind turbine foundation includes a ring-shaped column 1, a plurality of main ribs 2, a plurality of sub ribs 3, a ring-shaped plate 4, and anchor bolts 5.

For example, referring to fig. 1, in one implementation of the embodiment of the present application, the annular column 1 of the wind turbine foundation structure is a hollow cylinder, and a plurality of anchor bolts 5 are uniformly arranged at intervals on the top of the annular column 1, so that after the entire wind turbine foundation is installed on the foundation, the wind turbine foundation can be connected to the wind turbine tower through the plurality of anchor bolts 5, and the wind turbine foundation is used for supporting the entire wind turbine.

For example, referring to fig. 2, the inner ends of a plurality of main ribs 2 of the wind turbine foundation are connected to the outer wall of the annular column 1 at regular intervals, and the outer ends of the plurality of main ribs 2 extend in the radial direction of the annular column 1.

In one implementation of the embodiment of the present application, for example, in order to make the annular column 1 uniformly stressed when the entire wind turbine foundation is stressed, the annular column 1 may be designed to be a hollow cylinder, that is, a circular ring in cross section. The main rib beam 2 can be rectangular, so that the inner end of the main rib beam 2 is fixedly connected with the outer wall of the annular column 1 conveniently, the inner end of the main rib beam 2 can be designed to be an arc-shaped surface, and the radian of the outer wall of the main rib beam is consistent with that of the outer wall of the annular column 1.

Of course, the shape of the annular column 1 in the present application is not limited to the hollow cylindrical shape, and in other implementations of the embodiment of the present application, the annular column 1 may also have a hollow rectangular parallelepiped shape or other reasonable shapes. The shape of the main rib 2 in the present application is not limited to the rectangular parallelepiped shape, and the main rib 2 may have other reasonable shapes in other implementations of the embodiment of the present application.

For example, referring to fig. 2 and 4, in one implementation of the embodiment of the present application, the annular column 1 and the main rib 2 may be vertically disposed, and the direction from the inner end to the outer end of the main rib 2 is the length direction of the main rib 2, that is, the length direction of the main rib 2 extends along the radial direction of the annular column 1. Moreover, in order to ensure the balance of the entire wind turbine foundation, the bottom of the main rib beam 2 may be flush with the bottom of the ring column 1.

Referring to fig. 4, in one implementation of the embodiment of the present application, each secondary rib 3 is connected between two adjacent primary ribs 2, so that the secondary ribs 3 can maintain the shape structure of each primary rib 2 when the primary rib 2 is subjected to a tensile force by a load of an upper wind turbine. Furthermore, when the entire wind turbine foundation generates a counter-supporting force to the wind turbine above, the secondary rib 3 can transmit the force to the primary rib 2.

For example, referring to fig. 4, the secondary rib 3 may have an arc shape, and both ends of each secondary rib 3 are respectively connected to the sidewalls of two adjacent primary rib 2, so that a plurality of secondary rib 3 may form an approximate circle, and the center of the approximate circle may coincide with the center of the annular column 1, thereby ensuring uniform force transmission among various positions of the entire wind turbine foundation. That is, when the annular pillar 1 is annular, the approximate circle and the annular pillar 1 may be concentric circles.

Referring to fig. 2, in one implementation of the embodiment of the present application, the inner wall of the annular plate 4 is fixed to the outer wall of the annular column 1, and the annular plate 4 is located above the structure formed by the primary rib 2 and the secondary rib 3.

For example, referring to fig. 1 to 2, the top of the ring-shaped plate 4 may be flush with the top of the main rib girder 2, and the bottom of the ring-shaped plate 4 may be provided with a groove having the same shape as the main rib girder 2 and the sub rib girder 3 as viewed from the side of the entire wind turbine foundation, so that the upper portions of the main rib girder 2 and the sub rib girder 3 are embedded in the ring-shaped plate 4, so that the ring-shaped plate 4 and the main rib girder 2 and the sub rib girder 3 are integrated. In fact, the whole wind driven generator foundation is built by steel bars, and the main rib beam 2, the secondary rib beam 3 and the annular plate 4 are built simultaneously, so that the whole wind driven generator foundation is guaranteed to be of an integrated structure.

Of course, the present application is not limited to this, and in other implementations of the embodiments of the present application, the height of the portion of the main rib beam 2 and the secondary rib beam 3 embedded in the annular plate 4 may be smaller than the thickness of the annular plate 4, or the annular plate 4 may be fixed integrally with the main rib beam 2 and the secondary rib beam 3 in other reasonable manners.

In addition, in one implementation of the embodiment of the present application, the height of the main rib 2 may be smaller than the height of the ring column 1. Since the top of the ring-shaped column 1 is used for installing a fan tower, the top of the ring-shaped column 1 needs to be higher than the natural ground, and the top of the ring-shaped plate 4 needs to be piled with concrete to prevent the corrosion by rainwater and the like due to rain, so that the top of the ring-shaped plate 4 is located below the natural ground.

Referring to fig. 2, in one implementation of the embodiment of the present application, the thickness of the annular plate 4 may be smaller than the height of the secondary rib 3, and the height of the secondary rib 3 may be smaller than the height of the primary rib 2. That is, when the entire wind turbine foundation is placed on the ground, the bottom of the ring plate 4 may be higher than the bottom of the secondary rib girder 3, and the bottom of the secondary rib girder 3 may be higher than the bottom of the main rib girder 2.

Like this, when aerogenerator basis atress, main rib roof beam 2 can receive the pulling force, and the reinforcing bar of whole main rib roof beam 2 structure lower part is main atress position to there is the problem of cross construction in the atress reinforcing bar of main rib roof beam 2 and the atress reinforcing bar of cyclic annular board 4 to have been avoided.

Since concrete needs to be piled up above the ring-shaped plate 4, when the whole wind driven generator foundation is stressed, the ring-shaped plate 4 and the concrete above bear pressure and generate upward supporting force, and the ring-shaped plate 4 transmits the force to the main rib beam 2 and the secondary rib beam 3. Because main rib 2 and cyclic annular post 1 are connected to the height design of secondary rib 3 is for being less than main rib 2's height and also designs the thickness of secondary rib 2 for being less than main rib 2's thickness, and secondary rib 3 can transmit power to the main rib 2 that bears the intensity stronger when the atress like this, and main rib 2 transmits power to cyclic annular post 1 again in order to support the fan of top.

Of course, the relationship between the height of the main rib 2, the height of the secondary rib 3 and the thickness of the annular plate 4 and the relationship between the thickness of the main rib 2 and the thickness of the secondary rib 3 in the present application are not limited to the above description, and in other implementations of the embodiment of the present application, other reasonable relationships may be designed between the height of the main rib 2, the height of the secondary rib 3 and the thickness of the annular plate 4 and between the thickness of the main rib 2 and the thickness of the secondary rib 3.

Referring to fig. 1, in one implementation of the embodiment of the present application, the inner side of the annular plate 4 is fixed with the outer wall of the annular column 1.

For example, if the annular column 1 is a hollow cylinder, that is, when the cross section of the outer wall of the annular column 1 is circular, the inner wall of the annular plate 4 can also be circular, and the inner diameter of the annular plate 4 is equal to the outer diameter of the annular column 1, so that it appears that the annular plate 4 is sleeved outside the annular column 1, actually, the annular column 1 and the annular plate 4 are of an integral structure without a gap therebetween, thereby preventing rainwater or other substances in rain from entering the interior of the wind turbine foundation to cause corrosion damage or other influences on the whole wind turbine foundation, and preventing the whole wind turbine foundation from being stressed due to the influence of uneven force transmission between the annular column 1 and the annular plate 4.

In addition, referring to fig. 1-2, for example, in another implementation manner of the embodiment of the present application, a plurality of protruding members 6 may be uniformly connected to the outer wall of the annular column 1 at intervals. This protrusion 6 can be the cuboid form, and protrusion 6 with cyclic annular post 1 fixed one side also can set up to the arcwall face, and the radian is unanimous with the radian of the outer wall of cyclic annular post 1 to can make protrusion 6 and cyclic annular post 1 as an organic whole.

Also, referring to fig. 1, in such an implementation of the embodiment of the present application, in order to ensure uniform force transmission between the annular post 1 and the protruding member 6, the upper and lower ends of the protruding member 6 may be flush with the annular post 1.

In this implementation manner of the embodiment of the present application, the cross section of the structure formed by the annular pillar 1 and the plurality of protruding members 6 is zigzag, and the shape of the inner wall of the annular plate 4 can also be designed into zigzag matching with the shapes of the outer walls of the annular pillar 1 and the protruding members 6, so that the annular pillar 1, the protruding members 6 and the annular plate 4 are an integral structure.

Of course, the shape of the protruding member 6 in the present application is not limited to the rectangular parallelepiped shape, and in other implementations of the embodiment of the present application, the protruding member 6 may have other reasonable shapes.

Referring to fig. 1, in this implementation manner of the embodiment of the present application, the main rib 2 is connected to the annular column 1 through the protrusion 6, if the protrusion 6 has a rectangular parallelepiped shape, an inner end of each main rib 2 fixedly connected to the protrusion 6 may be a flat surface, and an extension direction of the main rib 2 in a horizontal direction may be identical to an extension direction of the protrusion 2 in the horizontal direction, so that the main rib 2 may transmit a received force from the protrusion 6 to the annular column 1.

For example, referring to fig. 2, in such an implementation of the embodiment of the present application, the width of the protruding member 6 may be greater than the width of the main rib 2, so that it is ensured that the protruding member 6 can receive the force transmitted by the main rib 2 and transmit the force to the ring column 1 to support the fan.

In the embodiment of the application, the wind driven generator foundations in two implementation modes consisting of the annular column 1, the main rib beams 2, the secondary rib beams 3, the annular plate 4 and the protruding pieces 6 are all of an integral steel bar pouring structure. The upper part of the annular plate 4 is filled with concrete and piled up. The shape of the foundation for placing the wind driven generator foundation can be matched with the shape of the structure formed by the main rib beams 2 and the secondary rib beams 3, so that the influence on the operation of the whole fan due to the infirm foundation and the wind driven generator foundation is avoided.

The stress mode of the wind driven generator foundation can be as follows:

after the wind turbine is installed on the wind turbine foundation through the anchor bolts 5, the wind turbine generates downward pressure on the whole wind turbine foundation, and the annular plate 4 generates upward reaction force and transmits the force to the main rib beam 2 and the secondary rib beam 3 under the pressure of the concrete above. The main rib beam 2 and the secondary rib beam 3 are constructed by steel bars, and the tensile capacity of the steel bars is stronger than that of concrete, so that when the whole wind driven generator is stressed, the main rib beam 2 and the secondary rib beam 3 are used for bearing tensile force, and the main rib beam 2 and the secondary rib beam 3 can generate reverse force to support a fan above. And the secondary rib beam 3 transmits force to the main rib beam 2, and the main rib beam 2 transmits force to the annular column 1 through the protruding piece 6, so that the whole wind driven generator foundation integrally generates upward reaction force to support an upper fan.

In the aerogenerator basis that this application embodiment provided, adopt the cyclic annular post 1 of hollow cylinder can reduce the quantity of concrete, reduce engineering cost. The outer wall interval of cyclic annular post 1 sets up a plurality of protrusion 6 uniformly, a main rib roof beam 2 is all connected to one side of keeping away from cyclic annular post 1 of every protrusion 6, connect curved secondary rib roof beam 3 between per two adjacent main rib roof beams 2, all secondary rib roof beams 3 enclose into a circle, and the centre of a circle of this circle and cyclic annular post 1's center coincidence, the outer wall of cyclic annular board 4 is together fixed with the outer wall of cyclic annular post 1, and the bottom at cyclic annular board 4 is inlayed and establish on the upper portion of main rib roof beam 2 and secondary rib roof beam 3, thereby whole aerogenerator basis is structure as an organic whole, can guarantee cyclic annular board 4, secondary rib roof beam 3, atress and biography power between main rib roof beam 2 and the cyclic annular post 1 are even reasonable.

The above description is only illustrative of the present invention and should not be construed as limiting the scope of the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (10)

1. A wind power generator foundation, characterized by comprising a ring-shaped column (1), a plurality of main rib beams (2), a plurality of secondary rib beams (3), a ring-shaped plate (4) and a plurality of anchor bolts (5), wherein,

the annular column (1) is a hollow column body, the inner ends of the main rib beams (2) are uniformly connected to the outer wall of the lower part of the annular column (1) at intervals, and the outer ends of the main rib beams (2) extend along the radial direction of the annular column (1);

the anchor bolts (5) are uniformly arranged at the top of the annular column (1) at intervals;

each secondary rib beam (3) is connected between two adjacent main rib beams (2);

the inner wall of the annular plate (4) is fixed with the outer wall of the annular column (1), and the annular plate (4) is positioned above a structure formed by the main rib beam (2) and the secondary rib beam (3).

2. Wind turbine foundation according to claim 1, characterized in that the outer wall of the ring-shaped post (1) is evenly connected with a plurality of bulges (6) at intervals, and the main rib beam (2) is connected with the ring-shaped post (1) through the bulges (6).

3. Wind turbine foundation according to claim 2, characterized in that the upper and lower ends of the plurality of projections (6) are flush with the annular column (1).

4. Wind turbine foundation according to any of claims 1-3, characterized in that the bottom of each main rib (2) is flush with the bottom of the ring column (1) and the height of each main rib (2) is smaller than the height of the ring column (1).

5. Wind turbine foundation according to claim 4, characterized in that each secondary rib (3) has a height smaller than the height of the primary rib (2) and the top of the secondary rib (3) is flush with the top of the primary rib (2).

6. Wind turbine foundation according to claim 5, wherein each secondary rib (3) is connected at its two ends to the side walls of two adjacent primary ribs (2), each secondary rib (3) being curved, the secondary ribs (3) forming a closed circle with its center coinciding with the center of the annular column (1).

7. Wind turbine foundation according to claim 6, characterized in that the top of said annular plates (4) is flush with the top of said primary (2) and secondary (3) ribs.

8. Wind turbine foundation according to claim 7, characterized in that the tops of said primary (2) and secondary (3) ribs are embedded inside said annular plate (4).

9. Wind turbine foundation according to claim 8, characterized in that the thickness of said annular plates (4) is less than the height of said secondary ribs (3).

10. Wind turbine foundation according to any of claims 1-3 and 5-9, wherein the wind turbine foundation is an integral cast-in-place steel structure.

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