CN212774598U - Gear reinforced hollow fan foundation structure for wind generating set tower cylinder - Google Patents
Gear reinforced hollow fan foundation structure for wind generating set tower cylinder Download PDFInfo
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- CN212774598U CN212774598U CN202021104586.3U CN202021104586U CN212774598U CN 212774598 U CN212774598 U CN 212774598U CN 202021104586 U CN202021104586 U CN 202021104586U CN 212774598 U CN212774598 U CN 212774598U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
Abstract
The utility model discloses a gear reinforced hollow fan foundation structure for a wind generating set tower cylinder, which comprises a hollow fan foundation and a concrete tower cylinder which are fixedly connected, wherein a middle pier of the hollow fan foundation is inwards sunken to form a containing cavity; the bottom of the accommodating cavity protrudes outwards to form a plurality of protruding tooth-shaped hollow structures which are annularly arranged, and a reinforcing pier protruding inwards is formed between two adjacent hollow structures correspondingly; an embedded sleeve is preset between the top of each hollow structure and the top surface of the hollow fan foundation, and the hollow fan foundation is fixedly connected with the concrete tower barrel through a steel strand penetrating through the embedded sleeve. The utility model discloses the structural strength of reinforcing concrete tower bobbin base portion and basic junction can effectively transmit the upper portion load for strengthening mound and basic cushion cap to the size and the engineering volume of mound in the reduction that can be by a wide margin, and improve the overall stability and the security of fan basis.
Description
Technical Field
The utility model belongs to wind power generation engineering field, concretely relates to gear strenghthened type cavity fan foundation structure for a wind generating set tower section of thick bamboo.
Background
With the growth of onshore wind power scale and the reduction of exploitable and utilizable wind resources, low wind speed and low price on-line are developing into a new trend. The steel-concrete tower (combined structure of the steel tower cylinder and the concrete tower cylinder) has the characteristics of high rigidity, flexible combination mode of the concrete tower cylinder section and the steel tower cylinder section, low maintenance cost, quick construction and the like, can be well adapted to a high-power wind turbine generator, improves the height of a fan hub, and further improves the power generation benefit, so that the steel-concrete tower has wide attention in the field of wind power. Compared with an all-steel tower cylinder, the weight of the concrete tower is larger, the load transferred to the top of the fan foundation is also larger, and the tension force of the steel strand in thousands of tons is added, so that the joint of the bottom of the concrete tower cylinder and the foundation is usually a stress concentration area and often becomes a weak link and a key area of design. The traditional mixed tower fan foundation usually adopts a convex cavity, the lower end of a steel strand is anchored at the bottom of a ring beam of the convex cavity, and the height and the width of the ring beam are increased to resist the bending moment of the upper part, so that the engineering quantity of the fan foundation is obviously increased; in addition, the tensile force of the steel strands is large, so that the tensile stress of concrete in the corner area where the ring beam is connected with the base disc is over-limited. The reinforced structure that is in the place of concrete tower section of thick bamboo and fan foundation junction grout also appears pressing and cuts destruction and local crack easily.
Based on the above situation, the utility model provides a gear strenghthened type cavity fan foundation structure for a wind generating set tower section of thick bamboo can effectively solve above problem.
SUMMERY OF THE UTILITY MODEL
To the not enough of existence among the prior art, the utility model aims to provide a gear strenghthened type cavity fan foundation structure for a wind generating set tower section of thick bamboo. The utility model has the advantages of reasonable design, the structural strength of reinforcing concrete tower bobbin base portion and basic junction can effectually transmit the upper portion load for strengthening mound and basic cushion cap to the size and the engineering volume of mound in the reduction that can be by a wide margin, and improve the overall stability and the security on fan basis. And the fastening connection between the foundation of the high-power wind turbine generator and the concrete tower is realized.
In order to solve the technical problem, the utility model discloses a following technical scheme realizes:
a gear reinforced hollow fan foundation structure for a tower barrel of a wind generating set comprises a hollow fan foundation and a concrete tower barrel which are fixedly connected, wherein a middle pier of the hollow fan foundation is inwards sunken to form a containing cavity; the bottom of the accommodating cavity protrudes outwards to form a plurality of protruding tooth-shaped hollow structures which are annularly arranged, and a gear reinforcing pier protruding inwards is formed between two adjacent hollow structures correspondingly; an embedded sleeve is preset between the top of each hollow structure and the top surface of the hollow fan foundation, and the hollow fan foundation is fixedly connected with the concrete tower barrel through a steel strand penetrating through the embedded sleeve.
As an optimal technical scheme of the utility model, the one end of steel strand wires is passed pre-buried sleeve and with set up in the anchor end fixed connection at hollow out construction top, the other end passes insert behind the pre-buried sleeve in the concrete tower section of thick bamboo and with concrete tower section of thick bamboo fixed connection.
As an optimal technical scheme of the utility model, it is a plurality of hollow out construction with the axis that holds the cavity is central, to evenly diffusing all around and be the annular and arrange.
As a preferred technical scheme of the utility model, an annular groove is arranged in the contact area of the top of the hollow fan foundation and the concrete tower barrel, and a reinforcing structure is arranged in the groove; the steel strand sequentially penetrates through the hollow fan foundation, the groove and the concrete tower barrel and fixedly connects the hollow fan foundation, the groove and the concrete tower barrel together.
As an optimal technical scheme of the utility model, additional strengthening including place in the reinforcing bar and the leveling bolt of recess bottom, and erect in the steel grating of leveling bolt top, and pack in the inside grout that excels in of recess.
As an optimized technical scheme of the utility model, the cushion cap and the bottom plate on cavity fan basis set up to disc type or polygon raft board formula.
As a preferred technical scheme of the utility model, the top of holding the cavity is provided with the roof.
As an optimal technical scheme of the utility model, be provided with the cable pipe in the cavity fan basis.
As an optimized technical scheme of the utility model, cavity fan basis is reserved has into manhole.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
(1) the utility model provides a gear strenghthened type cavity fan foundation structure for a wind generating set tower section of thick bamboo, structural design is reasonable, mixes tower and fan foundation connection stress concentration department and effectively strengthens, and the size can be optimized greatly, and the construction is simple, saves the time limit for a project, and is connected closely knit reliably with a concrete tower section of thick bamboo.
(2) The utility model discloses it is extensive to use, can design into the disc type, can design into the board-like, all kinds of topography such as applicable mountain region, plain again.
(3) The utility model discloses a concrete tower and lower part fan basis are connected to the steel strand wires, can make the whole pre-compaction state that is in of wind turbine generator system pylon, can effectively deal with the dynamic load of fan, have improved overall stability and antidumping ability.
(4) The fan foundation is provided with the manhole and the internal accommodating cavity, so that the operations of pipe penetration, tensioning, anchoring, operation maintenance, overhaul and the like of the steel strand are facilitated, and the overhead operation caused by top tensioning is avoided.
(5) The utility model discloses still to the great steel grating and the grout scheme that excels in of concrete tower bobbin base compressive stress, can effectively avoid the pressure of the grout that excels in to cut, crack problem, satisfy the roughness requirement, construction convenience is swift, connects the fastening reliable.
Drawings
FIG. 1 is a schematic top view of the present invention;
FIG. 2 is a schematic sectional view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;
FIG. 4 is a schematic top view of the structure of FIG. 2 taken along the line C-C;
FIG. 5 is an enlarged schematic view of the structure at B in FIG. 4;
fig. 6 is a schematic view of the cross-sectional structure along the direction D-D in fig. 2.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the following description of the preferred embodiments of the present invention is given with reference to the accompanying examples, but it should be understood that the drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
As shown in fig. 1 to 6, a gear-reinforced hollow wind turbine foundation structure for a tower cylinder of a wind turbine generator system comprises a hollow wind turbine foundation 1 and a concrete tower cylinder 2 which are fixedly connected, wherein a cable pipe 4 is arranged in the hollow wind turbine foundation 1; the middle pier of the hollow fan foundation 1 is inwards sunken to form an accommodating cavity 14, and a top plate 7 is arranged at the top of the accommodating cavity 14; the bottom of the accommodating cavity 14 protrudes outwards to form a plurality of annularly arranged toothed hollow structures 15, and an inwards protruding gear reinforcing pier 5 is formed between two adjacent hollow structures 15 correspondingly; an embedded sleeve 8 is preset between the top of each hollow structure 15 and the top surface of the hollow fan foundation 1, and the hollow fan foundation 1 is stably connected with the concrete tower barrel 2 by a steel strand 3 penetrating through the embedded sleeve 8.
Further, in another embodiment, one end of the steel strand 3 passes through the embedded sleeve 8 and is fixedly connected with the anchoring end 6 arranged at the top of the hollow structure 15, and the other end of the steel strand passes through the embedded sleeve 8 and then is inserted into the concrete tower barrel 2 and is fixedly connected with the concrete tower barrel 2.
Further, in another embodiment, the hollow structures 15 are uniformly distributed around the axis of the accommodating cavity 14 and are arranged in a ring shape. 2 anchoring ends 6 are arranged at the top of each hollowed-out structure 15, and the anchoring ends 6 are distributed along the circumferential direction. This can be better with hollow fan basis 1 top and concrete tower section of thick bamboo 2 fastening connection.
Further, in another embodiment, an annular groove 13 is formed in a contact area between the top of the hollow fan foundation 1 and the concrete tower tube 2, and a reinforcing structure is arranged in the groove 13; the steel strand 3 sequentially penetrates through the hollow fan foundation 1, the groove 13 and the concrete tower barrel 2 and fixedly connects the hollow fan foundation 1, the groove 13 and the concrete tower barrel together. Wherein, pre-buried sleeve 8 set up in the recess 13, improved overall stability and antidumping ability greatly.
Further, in another embodiment, the reinforcing structure includes a steel bar 11 and a leveling bolt 12 placed at the bottom of the groove 13, a steel grid 10 erected above the leveling bolt 12, and a high-strength grouting material 9 filled in the groove 13.
Further, in another embodiment, the bearing platform and the bottom plate of the hollow wind turbine foundation 1 are arranged in a disc type or a polygonal raft type. The method is widely applied and suitable for various terrains such as mountainous regions, plains and the like.
Further, in another embodiment, an access hole is reserved on the hollow fan foundation 1. The fan foundation is provided with the manhole and the internal accommodating cavity, so that the operations of pipe penetration, tensioning, anchoring, operation maintenance, overhaul and the like of the steel strand are facilitated, and the overhead operation caused by top tensioning is avoided.
The utility model discloses a work progress as follows:
the gear reinforced hollow fan foundation is constructed in a concrete cast-in-place mode, the concrete strength grade of the gear reinforced hollow fan foundation is between C30 and C45, a cushion layer is poured firstly after foundation pit excavation, then steel bars are bound, a template is erected, the cable pipe 4 and the embedded sleeve 8 are accurately placed, and then pouring and maintenance of the concrete foundation are conducted. And after the concrete strength meets the design requirement, the concrete tower barrel 2 is hoisted, the steel strand 3 is penetrated and tensioned, and the like. The gear reinforcing pier 5 effectively strengthens the connection of the upper part and the lower part of the hollow fan foundation 1, optimizes the foundation structure, reduces the size defects of the hollow foundation and the traditional foundation, and has better anti-overturning capability.
A groove with the annular width of about 800mm is reserved when the top of the hollow fan foundation is poured, reinforcing steel bars 11 and a plurality of adjusting bolts 12 are placed in the groove after concrete is demoulded, the steel grating 10 is placed in a split mode and then leveled to meet design requirements, the steel grating 10 is taken out, the steel grating 10 is sequentially placed and leveled before high-strength grouting material is poured and vibrated, and finally, floating forming is carried out.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
According to the utility model discloses a description and attached drawing, the technical personnel in the field make or use very easily the utility model discloses a gear strenghthened type cavity fan foundation structure for a wind generating set tower section of thick bamboo to can produce the positive effect recorded in the utility model discloses.
Unless otherwise specified, in the present invention, if the terms "upper", "lower", "top", "bottom", "inward", "outward", "circumferential", "annular", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, the description is only for convenience of description and simplification, but the terms describing the orientation or positional relationship are only used for exemplary illustration and are not to be construed as limitations of the present invention, and those skilled in the art can understand the specific meaning of the above terms according to the specific situation by referring to the drawings.
Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass both fixed and removable connections, or integral connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.
Claims (9)
1. A gear strenghthened type cavity fan foundation structure for a wind generating set tower section of thick bamboo, including fixed connection's cavity fan basis (1) and concrete tower section of thick bamboo (2), its characterized in that: the middle pier of the hollow fan foundation (1) is inwards sunken to form a containing cavity (14); the bottom of the accommodating cavity (14) protrudes outwards to form a plurality of raised tooth-shaped hollow structures (15) which are annularly arranged, and an inwards protruding gear reinforcing pier (5) is formed between two adjacent hollow structures (15); an embedded sleeve (8) is preset between the top of each hollow structure (15) and the top surface of the hollow fan foundation (1), and a steel strand (3) penetrates through the embedded sleeve (8) to firmly connect the hollow fan foundation (1) and the concrete tower barrel (2).
2. The gear-reinforced hollow wind turbine foundation structure for the tower of the wind turbine generator system of claim 1, wherein: one end of the steel strand (3) penetrates through the embedded sleeve (8) and is fixedly connected with the anchoring end (6) arranged at the top of the hollow structure (15), and the other end of the steel strand penetrates through the embedded sleeve (8) and is inserted into the concrete tower cylinder (2) and is fixedly connected with the concrete tower cylinder (2).
3. The gear-reinforced hollow wind turbine foundation structure for the tower of the wind turbine generator system of claim 1, wherein: the hollow structures (15) are uniformly diffused to the periphery and are annularly arranged by taking the axis of the accommodating cavity (14) as the center.
4. The gear-reinforced hollow wind turbine foundation structure for the tower of the wind turbine generator system of claim 1, wherein: an annular groove (13) is formed in the contact area between the top of the hollow fan foundation (1) and the concrete tower barrel (2), and a reinforcing structure is arranged in the groove (13); the steel strand (3) sequentially penetrates through the hollow fan foundation (1), the groove (13) and the concrete tower barrel (2) and fixedly connects the hollow fan foundation, the groove and the concrete tower barrel together.
5. The gear-reinforced hollow wind turbine foundation structure for the tower of the wind turbine generator system of claim 4, wherein: the reinforcing structure comprises a steel bar (11) and a leveling bolt (12) which are placed at the bottom of the groove (13), a steel grating (10) which is erected above the leveling bolt (12), and high-strength grouting material (9) filled in the groove (13).
6. The gear-reinforced hollow wind turbine foundation structure for the tower of the wind turbine generator system of claim 1, wherein: the bearing platform and the bottom plate of the hollow fan foundation (1) are disc type or polygonal raft type.
7. The gear-reinforced hollow wind turbine foundation structure for the tower of the wind turbine generator system of claim 1, wherein: the top of the containing cavity (14) is provided with a top plate (7).
8. The gear-reinforced hollow wind turbine foundation structure for the tower of the wind turbine generator system of claim 1, wherein: and a cable pipe (4) is arranged in the hollow fan foundation (1).
9. The gear-reinforced hollow wind turbine foundation structure for the tower of the wind turbine generator system of claim 1, wherein: an inlet manhole is reserved on the hollow fan foundation (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021104586.3U CN212774598U (en) | 2020-06-15 | 2020-06-15 | Gear reinforced hollow fan foundation structure for wind generating set tower cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021104586.3U CN212774598U (en) | 2020-06-15 | 2020-06-15 | Gear reinforced hollow fan foundation structure for wind generating set tower cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212774598U true CN212774598U (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021104586.3U Active CN212774598U (en) | 2020-06-15 | 2020-06-15 | Gear reinforced hollow fan foundation structure for wind generating set tower cylinder |
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| Country | Link |
|---|---|
| CN (1) | CN212774598U (en) |
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2020
- 2020-06-15 CN CN202021104586.3U patent/CN212774598U/en active Active
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