Fan foundation and fan system
By using anchor bolt assembly and column structure in the fan foundation, the anchor plate is supported to reduce prestress, and the problem of concrete cracking and reinforcement design is solved, stability improvement and construction simplicity are achieved, and construction cost is reduced.
Patent Information
- Application Number
- CN202420352597.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-26
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-02-26
AI Technical Summary
The existing fan foundation has cracked concrete due to huge prestresses, which reduces stability. In the reinforcement design in reinforced concrete foundations, there are problems such as difficulty in binding and low construction efficiency, resulting in high cost.
The anchor bolt assembly and column structure are adopted to support the anchor plate through columns to reduce the prestress of the anchor bolt assembly on concrete, reduce the internal reinforcement requirement, and simplify the construction process.
It improves the stability of the fan foundation, reduces the difficulty of reinforcement design and concrete pouring, simplifies the construction process, and reduces the amount and cost of steel.
Smart Images
Figure CN222275544U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fans, and in particular to a fan foundation and a fan system. Background Art
[0002] Prestressed anchor bolts are widely used in the foundation design of wind turbines. By applying a huge amount of prestress to the prestressed anchor bolts, the tower of the wind turbine is tightly connected to the foundation. This technology solves the connection problem between the steel structure tower and the reinforced concrete foundation, but it also brings difficulties to the design of the reinforced concrete foundation, which are mainly reflected in:
[0003] On the one hand, when the reinforced concrete is insufficiently reinforced, the huge prestress will cause the concrete to crack or even crush, reducing the stability of the wind turbine foundation. At present, many wind farms have experienced this kind of problem. On the other hand, in order to prevent the foundation concrete from being crushed, a large number of steel bars are often arranged in the reinforced concrete foundation, which makes it difficult to tie the steel bars and leads to low construction efficiency. At the same time, the dense arrangement of steel bars also brings about problems in concrete pouring, and the cost of the wind turbine foundation remains high. Utility Model Content
[0004] The utility model provides a fan foundation and a fan system, which are used to solve the defects in the prior art that the fan foundation is cracked due to the existence of huge prestress, the stability of the fan foundation is reduced, or a large number of steel bars are added inside the reinforced concrete, resulting in difficulty in bundling, low construction efficiency and high cost.
[0005] The utility model provides a fan foundation, comprising: an anchor assembly and a column;
[0006] Wherein, the anchor assembly comprises:
[0007] first anchor plate;
[0008] a second anchor plate, the second anchor plate being arranged opposite to the first anchor plate;
[0009] An anchor rod, one end of which is connected to the first anchor plate, and the other end of which is connected to the second anchor plate;
[0010] A column is supported between the first anchor plate and the second anchor plate.
[0011] According to a wind turbine foundation provided by the utility model, the first anchor plate and the second anchor plate are both annular structures, a plurality of anchor rods are arranged along the circumferential direction of the first anchor plate and the second anchor plate, and a plurality of columns are arranged along the circumferential direction of the first anchor plate and the second anchor plate.
[0012] According to a wind turbine foundation provided by the utility model, multiple layers of the anchor rods and multiple layers of the columns are arranged in the radial direction of the first anchor plate and the second anchor plate, and the anchor rods and the columns are alternately arranged along the radial direction of the first anchor plate and the second anchor plate.
[0013] According to a wind turbine foundation provided by the utility model, a plurality of first through holes are provided on the first anchor plate along the circumferential direction, and a plurality of second through holes are provided on the second anchor plate along the circumferential direction;
[0014] One end of the anchor rod passes through and is fixed in the corresponding first through hole, and the other end of the anchor rod passes through and is fixed in the corresponding second through hole.
[0015] A fan foundation provided by the utility model also includes:
[0016] A first fastener, which is connected to one end of the anchor rod close to the first through hole and is attached to a side of the first anchor plate away from the second anchor plate, and is used to lock one end of the anchor plate;
[0017] A second fastener is connected to one end of the anchor plate close to the second through hole and is attached to a side of the second anchor plate away from the first anchor plate, so as to lock the other end of the anchor plate.
[0018] According to a wind turbine foundation provided by the utility model, the first fastener and the second fastener both include: a first nut;
[0019] Two ends of the anchor plate are respectively formed with a first thread structure, and the first thread structure is adapted to the first nut.
[0020] A fan foundation provided by the utility model also includes:
[0021] a third fastener, the third fastener being connected to one end of the column close to the first anchor plate and attached to a side of the first anchor plate close to the second anchor plate;
[0022] A fourth fastener is connected to one end of the column close to the second anchor plate and is attached to a side of the second anchor plate close to the first anchor plate.
[0023] According to a fan foundation provided by the utility model, the third fastener and the fourth fastener both include: a second nut;
[0024] The two ends of the column are respectively formed with a second thread structure, and the second thread structure is adapted to the second nut.
[0025] A fan foundation provided by the utility model also includes:
[0026] A fixing bracket is arranged along the radial direction of the first anchor plate and the second anchor plate, and connects a plurality of the columns along the radial direction of the first anchor plate and the second anchor plate.
[0027] The utility model also provides a fan system, comprising: a fan foundation in the embodiment of the utility model.
[0028] The utility model provides a wind turbine foundation, which includes: an anchor assembly and a column; the anchor assembly includes: a first anchor plate, a second anchor plate and an anchor rod, the second anchor plate is arranged opposite to the first anchor plate, one end of the anchor rod is connected to the first anchor plate, and the other end of the anchor rod is connected to the second anchor plate, and the column is supported between the first anchor plate and the second anchor plate. The utility model provides a wind turbine foundation, which supports the anchor plate through the column, reduces the prestress applied to the foundation concrete by the anchor assembly, solves the engineering problem of concrete cracking caused by prestress, and improves the stability of the foundation; it also solves the reinforcement design problem of the joint part between the anchor assembly and the foundation concrete, and only needs to set the column between the anchor plates according to the structural structure, without adding additional reinforcement inside the anchor plate, which greatly reduces the difficulty of reinforcement design and concrete pouring of the wind turbine foundation. Compared with conventional design schemes, the utility model is simple and convenient to construct, uses less steel, and reduces the cost.
[0029] Furthermore, the utility model also provides a fan system, which includes the fan foundation in the embodiment of the utility model, and therefore has the same advantages as above. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0031] Figure 1 It is a structural schematic diagram of a fan foundation provided in one embodiment of the utility model;
[0032] Figure 2 It is a structural schematic diagram of one row of anchor rods and columns of a wind turbine foundation provided in one embodiment of the utility model;
[0033] Figure 3 It is a structural schematic diagram of an anchor bolt assembly provided in one embodiment of the utility model;
[0034] Figure 4It is a cross-sectional schematic diagram provided in one embodiment of the utility model;
[0035] Figure 5 yes Figure 4 Schematic diagram of the specific structure in the upper middle part;
[0036] Figure 6 yes Figure 4 Schematic diagram of the specific structure in the middle and lower part.
[0037] Reference numerals:
[0038] 1: first anchor plate; 2: second anchor plate; 3: anchor rod; 4: column; 5: fixed bracket; 6: embedded part; 7: first fastener; 8: second fastener; 9: third fastener; 10: fourth fastener. DETAILED DESCRIPTION
[0039] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0040] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0041] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.
[0042] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0043] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0044] Combine the following Figure 1-Figure 6 The utility model is described as a wind turbine foundation, which comprises an anchor assembly and a column 4.
[0045] The anchor assembly comprises: a first anchor plate 1 , a second anchor plate 2 and an anchor rod 3 .
[0046] Specifically, the second anchor plate 2 is arranged opposite to the first anchor plate 1 ; one end of the anchor rod 3 is connected to the first anchor plate 1 , and the other end of the anchor rod 3 is connected to the second anchor plate 2 ; the column 4 is supported between the first anchor plate 1 and the second anchor plate 2 .
[0047] The first anchor plate 1 and the second anchor plate 2 are respectively an upper anchor plate and a lower anchor plate, which are arranged opposite to each other, and the anchor rod 3 is connected between the two anchor plates. After the anchor rod 3 is assembled, the anchor rod 3 provides prestress. The column 4 is connected between the two anchor plates and supports them. After the column 4 is assembled, the column 4 only provides compressive stress. The column 4 can be a steel column 4 or a high-strength concrete steel pipe column or other rod system components with strong compressive resistance.
[0048] The utility model provides a wind turbine foundation, which includes: an anchor assembly and a column 4; the anchor assembly includes: a first anchor plate 1, a second anchor plate 2 and an anchor rod 3, the second anchor plate 2 is arranged opposite to the first anchor plate 1, one end of the anchor rod 3 is connected to the first anchor plate 1, and the other end of the anchor rod 3 is connected to the second anchor plate 2, and the column 4 is supported between the first anchor plate 1 and the second anchor plate 2. The utility model provides a wind turbine foundation, which supports the anchor plate through the column 4, reduces the prestress applied to the foundation concrete by the anchor assembly, solves the engineering problem of concrete cracking caused by prestress, and improves the stability of the foundation; it also solves the reinforcement design problem of the anchor assembly and the foundation concrete joint part, only needs to set the column 4 between the anchor plates according to the structural structure, and does not need to add additional reinforcement inside the anchor plate, which greatly reduces the reinforcement design difficulty and concrete pouring difficulty of the wind turbine foundation. Compared with the conventional design scheme, the utility model is simple and convenient to construct, uses less steel, and reduces the cost.
[0049] In one embodiment of the utility model, the first anchor plate 1 and the second anchor plate 2 are both annular structures, a plurality of anchor rods 3 are arranged along the circumferential direction of the first anchor plate 1 and the second anchor plate 2, and a plurality of columns 4 are arranged along the circumferential direction of the first anchor plate 1 and the second anchor plate 2. It can be understood that the specific size and number of the anchor rods 3 should meet the prestressing standard of the wind turbine; and the specific size and number of the columns 4 are determined by the designer according to the stress condition of the wind turbine foundation. In this embodiment, 96 columns 4 are evenly distributed along the circumferential direction to provide support.
[0050] In one of the embodiments of the present invention, multiple layers of anchor rods 3 and multiple layers of columns 4 are arranged in the radial direction of the first anchor plate 1 and the second anchor plate 2, and the anchor rods 3 and the columns 4 are alternately arranged along the radial direction of the first anchor plate 1 and the second anchor plate 2. In this embodiment, the columns 4 are alternately arranged with the anchor rods 3 in the radial direction of the first anchor plate 1 and the second anchor plate 2, and the columns 4 support the inner and outer sides of the anchor rods 3, thereby improving their supporting capacity, further reducing the cracking phenomenon of the wind turbine foundation caused by prestress, and improving the structural stability of the wind turbine foundation. Preferably, columns 4 are arranged on the innermost and outermost sides in the radial direction of the first anchor plate 1 and the second anchor plate 2. Through the above arrangement, it is ensured that the inner and outer sides of each layer of anchor rods 3 are arranged with columns 4 for support. Further preferably, as Figure 2 As shown, the columns 4 and anchor rods 3 are arranged in five layers in total, which are arranged from the outside to the inside in order as the columns 4, the anchor rods 3, the columns 4, the anchor rods 3 and the columns 4.
[0051] In one embodiment of the utility model, a plurality of first through holes are provided on the first anchor plate 1 along the circumferential direction, and a plurality of second through holes are provided on the second anchor plate 2 along the circumferential direction; one end of the anchor rod 3 passes through and is fixed in the corresponding first through hole, and the other end of the anchor rod 3 passes through and is fixed in the corresponding second through hole. Specifically, through holes are machined on the first anchor plate 1 and the second anchor plate 2 so that the anchor rod 3 can pass through for positioning and installation, thereby avoiding misalignment of the anchor rod 3. It is understandable that the size of the first through hole and the second through hole should match the size of the end of the anchor rod 3.
[0052] In one embodiment of the present invention, Figure 5 and Figure 6 As shown, the wind turbine foundation also includes: a first fastener 7 and a second fastener 8. The first fastener 7 is connected to one end of the anchor rod 3 close to the first through hole, and is attached to the side of the first anchor plate 1 away from the second anchor plate 2, and is used to lock one end of the anchor plate; the second fastener 8 is connected to one end of the anchor plate close to the second through hole, and is attached to the side of the second anchor plate 2 away from the first anchor plate 1, and is used to lock the other end of the anchor plate. Specifically, after the two ends of the anchor rod 3 pass through the first through hole and the second through hole respectively, the upper end of the anchor rod 3 is locked by the first fastener 7 above the first anchor plate 1, and the lower end of the anchor rod 3 is locked by the second fastener 8 below the second anchor plate 2, so that the anchor rod 3 is fixedly installed between the first anchor plate 1 and the second anchor plate 2.
[0053] In one embodiment of the utility model, the first fastener 7 and the second fastener 8 both include: a first nut; a first threaded structure is formed at both ends of the anchor plate, and the first threaded structure is adapted to the first nut. Specifically, the first fastener 7 and the second fastener 8 both adopt a nut structure, and a threaded structure is processed at both ends of the anchor plate, and the threaded structure extends outward through the first through hole and the second through hole, and the first nut and the first threaded structure cooperate with each other to achieve the locking of the anchor rod 3. In this embodiment, the nut and the threaded structure are used to lock and install the anchor rod 3, which is convenient for the removal and installation of the anchor rod 3.
[0054] In one embodiment of the present invention, Figure 5 and Figure 6As shown, the wind turbine foundation also includes: a third fastener 9 and a fourth fastener 10. The third fastener 9 is connected to one end of the column 4 close to the first anchor plate 1, and is attached to the side of the first anchor plate 1 close to the second anchor plate 2; the fourth fastener 10 is connected to one end of the column 4 close to the second anchor plate 2, and is attached to the side of the second anchor plate 2 close to the first anchor plate 1. Specifically, the installation method of the column 4 is different from that of the anchor rod 3. Since the column 4 needs to provide compressive stress, the column 4 is supported between the first anchor plate 1 and the second anchor plate 2, and the third fastener 9 and the fourth fastener 10 are mainly used to provide a margin for the support of the anchor rod 3 to avoid the problem of support failure due to the processing problem of the anchor rod 3. During the assembly process, the third fastener 9 and the fourth fastener 10 are first installed at both ends of the column 4, and it is ensured that the column 4 can be smoothly installed between the first anchor plate 1 and the second anchor plate 2. After that, the third fastener 9 and the fourth fastener 10 are gradually adjusted so that the fasteners move toward the outside of the end of the column 4 where they are located. Finally, the fasteners are attached to the inner side of the anchor plate, thereby utilizing the fasteners to achieve a supporting effect.
[0055] In one embodiment of the utility model, the third fastener 9 and the fourth fastener 10 both include: a second nut; a second thread structure is formed at both ends of the column 4, and the second thread structure is adapted to the second nut. Specifically, the third fastener 9 and the fourth fastener 10 both adopt a nut structure, and a thread structure is processed at both ends of the column 4. By utilizing the mutual cooperation between the second nut and the second thread structure, the second nut can be rotated to move along the length direction of the column 4, so as to press against the inner side of the anchor plate, and provide compressive stress for the wind turbine foundation.
[0056] In one embodiment of the utility model, the wind turbine foundation further includes: a fixing bracket 5, which is arranged along the radial direction of the first anchor plate 1 and the second anchor plate 2, and connects a plurality of columns 4 along the radial direction of the first anchor plate 1 and the second anchor plate 2. Specifically, the fixing bracket 5 is used to connect a plurality of columns 4 along the radial direction of the first anchor plate 1 and the second anchor plate 2, thereby improving the stability of the assembly of the columns 4.
[0057] In one embodiment of the present invention, the wind turbine foundation further includes: an embedded part 6, the embedded part 6 is connected to the bottom of the second anchor plate 2, and the wind turbine foundation can be embedded under the ground through the embedded part 6.
[0058] The assembly process of the fan foundation based on the above embodiment is as follows:
[0059] First, the embedded part 6 is embedded under the ground surface, the second anchor plate 2 is installed on the embedded part 6, the anchor rod 3 is passed through the second through hole, and the second fastener 8 is installed;
[0060] Then, the columns 4 and the fourth fasteners 10 are installed between the anchor rods 3, and the fixing brackets 5 are welded between the multiple columns 4 for fixing;
[0061] Finally, the first anchor plate 1 is installed, and then the first fasteners 7 are installed to level the first anchor plate 1. For leveling, 10 groups of anchor rods 3 are selected symmetrically in the circumferential direction for leveling, and then the remaining first fasteners 7 are installed. After the leveling is completed, the third fasteners 9 of the 10 groups of columns 4 are first locked, and finally the remaining third fasteners 9 are installed.
[0062] The third fastener 9 and the fourth fastener 10 are only required to fit with the anchor plate.
[0063] The utility model also provides a fan system, which includes: a fan foundation in one embodiment of the utility model.
[0064] The utility model provides a fan system, which includes the fan foundation in the embodiment of the utility model, and therefore has the same advantages as above.
[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A fan foundation, characterized in that: include: Anchor bolt assembly and column (4); Wherein, the anchor assembly comprises: A first anchor plate (1); a second anchor plate (2), the second anchor plate (2) being arranged opposite to the first anchor plate (1); An anchor rod (3), one end of the anchor rod (3) is connected to the first anchor plate (1), and the other end of the anchor rod (3) is connected to the second anchor plate (2); A column (4), wherein the column (4) is supported between the first anchor plate (1) and the second anchor plate (2).
2. The wind turbine foundation according to claim 1, characterized in that: The first anchor plate (1) and the second anchor plate (2) are both annular structures, a plurality of anchor rods (3) are arranged along the circumferential direction of the first anchor plate (1) and the second anchor plate (2), and a plurality of columns (4) are arranged along the circumferential direction of the first anchor plate (1) and the second anchor plate (2).
3. The wind turbine foundation according to claim 2, characterized in that: In the radial direction of the first anchor plate (1) and the second anchor plate (2), multiple layers of the anchor rods (3) and multiple layers of the columns (4) are arranged, and the anchor rods (3) and the columns (4) are alternately arranged along the radial direction of the first anchor plate (1) and the second anchor plate (2).
4. The wind turbine foundation according to claim 2, characterized in that: The first anchor plate (1) is provided with a plurality of first through holes along the circumferential direction, and the second anchor plate (2) is provided with a plurality of second through holes along the circumferential direction; One end of the anchor rod (3) passes through and is fixed in the corresponding first through hole, and the other end of the anchor rod (3) passes through and is fixed in the corresponding second through hole.
5. The wind turbine foundation according to claim 4, characterized in that: Also includes: A first fastener (7), the first fastener (7) being connected to one end of the anchor rod (3) close to the first through hole and being attached to a side of the first anchor plate (1) away from the second anchor plate (2) for locking one end of the anchor plate; A second fastener (8), the second fastener (8) is connected to one end of the anchor plate close to the second through hole and is attached to a side of the second anchor plate (2) away from the first anchor plate (1), and is used to lock the other end of the anchor plate.
6. The wind turbine foundation according to claim 5, characterized in that: The first fastener (7) and the second fastener (8) both include: a first nut; Two ends of the anchor plate are respectively formed with a first thread structure, and the first thread structure is adapted to the first nut.
7. The wind turbine foundation according to claim 2, characterized in that: Also includes: A third fastener (9), the third fastener (9) being connected to one end of the column (4) close to the first anchor plate (1) and being attached to one side of the first anchor plate (1) close to the second anchor plate (2); A fourth fastener (10), the fourth fastener (10) is connected to one end of the column (4) close to the second anchor plate (2), and is attached to a side of the second anchor plate (2) close to the first anchor plate (1).
8. The wind turbine foundation according to claim 7, characterized in that: The third fastener (9) and the fourth fastener (10) both include: a second nut; A second thread structure is formed at both ends of the column (4), and the second thread structure is adapted to fit the second nut.
9. The wind turbine foundation according to any one of claims 2 to 8, characterized in that: Also includes: A fixing bracket (5), wherein the fixing bracket (5) is arranged along the radial direction of the first anchor plate (1) and the second anchor plate (2), and connects a plurality of the columns (4) along the radial direction of the first anchor plate (1) and the second anchor plate (2).
10. A fan system, characterized in that: include: A wind turbine foundation as claimed in any one of claims 1 to 9.