Structure for realizing concrete pouring area of wind power mixed tower

Abstract

The utility model provides a structure for realizing a concrete pouring area of a wind power mixed tower, which can provide a concrete pouring area which is firm in structure and convenient to disassemble and assemble. The structure comprises an outer mold and an inner mold which are concentrically arranged, the outer mold and the inner mold are both circular, and an annular area is defined between the outer mold and the inner mold; the concrete pouring mold further comprises a base, the base is located at the bottom of the annular area and makes sealing contact with the outer mold and the inner mold, the base is detachably connected with the outer mold and the inner mold, and concrete is poured into the portion, above the base, of the annular area. The wind power mixing tower concrete pouring area is simple in structure and convenient to operate, the firm and relatively-sealed concrete pouring area can be achieved through cooperation of the outer mold, the inner mold and the base, the overall structure is convenient to disassemble and assemble, and good practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power, in particular to a structure capable of realizing a concrete pouring area of ​​a wind power mixed tower. Background Art

[0002] With the gradual consumption of global energy, wind power as a renewable energy generation technology has achieved unprecedented rapid development. Among the current wind power generation equipment, the concrete tower is the most common construction structure. The lower part is mainly constructed with concrete and the upper part is a steel tower section. The overall structure has strong reliability and low construction cost. When making the lower concrete structure, steel formwork is currently used for pouring. Since the concrete radius of the bottom of the concrete tower is large (up to more than 3 meters), the radius of the steel formwork used is also more than 3 meters. Therefore, pouring a concrete concrete tower base usually requires four arc-shaped steel formworks for assembly, which are disassembled after pouring. The shortcomings of this method are also revealed one by one during the actual construction process: First, the radius of the steel formwork is large, and special vehicles are required for transportation, resulting in high transportation costs; second, the steel formwork is heavy, and its arc length span is large. It is very easy to deform due to the bumps of the vehicle during transportation and cannot be reused; third, the installation speed is slow. When assembling a steel formwork, it usually takes 7-8 workers 3-4 days, which seriously reduces the construction efficiency; fourth, the steel formwork cannot be recycled when it cannot be used again, resulting in a lot of industrial waste, which is not conducive to environmental protection. Therefore, at this stage, an aluminum formwork for wind turbine hybrid tower construction with a simple structure, easy use and low construction cost is needed. Although the weight of the aluminum formwork is smaller and the cost is lower than that of the steel formwork, when the radius of the concrete section is more than 3 meters, how to achieve a solid concrete pouring area is also a major technical challenge. Utility Model Content

[0003] The utility model provides a structure for realizing a concrete pouring area of ​​a wind power hybrid tower, which can provide a concrete pouring area with a firm structure and convenient disassembly and assembly.

[0004] The technical solution of the utility model is implemented as follows: the structure of the wind power tower concrete pouring area includes an outer mold and an inner mold arranged concentrically, the outer mold and the inner mold are both circular, and an annular area is formed between the two;

[0005] It also includes a base, which is located at the bottom of the annular area and is in sealed contact with the outer mold and the inner mold. The base is detachably connected to the outer mold and the inner mold, and concrete is poured in the annular area above the base.

[0006] As a preferred embodiment, the outer mold is formed by sequentially splicing a plurality of vertically extending outer mold modules, and the inner mold is formed by sequentially splicing a plurality of vertically extending inner mold modules, and adjacent outer mold modules and inner mold modules can be detachably connected;

[0007] A plurality of fixed screw rods are also provided in the circumferential direction of the base, and the fixed screw rods sequentially penetrate the outer mold module, the base and the inner mold module and fix the three together. Nuts are sleeved on both ends of the fixed screw rods, and the extension lines of the fixed screw rods pass through the centers of the outer mold and the inner mold.

[0008] As a preferred embodiment, the bottom of the outer mold module is provided with an outer bottom plate fixed thereto as an integral unit, and the bottom of the inner mold module is provided with an inner bottom plate fixed thereto as an integral unit;

[0009] The outer side of the base is provided with an outer mold receiving tray which is separately arranged therefrom, and the inner side is provided with an inner mold receiving tray which is integrally arranged therewith. The outer bottom plate and the inner bottom plate are respectively attached to the outer mold receiving tray and the inner mold receiving tray and are detachably connected thereto by bolts.

[0010] As a preferred embodiment, the base is composed of four arc segments with a central angle of 90° that are detachably connected, and two isolation steel plates are symmetrically embedded in the annular area. The plane where the isolation steel plates are located passes through the center of the outer mold and the inner mold, and the two isolation steel plates divide the annular area equally.

[0011] As a preferred embodiment, a guide rail is further provided on the outer side of the outer mold, and the extension direction of the guide rail is perpendicular to the plane where the isolation steel plate is located;

[0012] The bottom of the outer mold receiving tray is also equipped with rollers and a lifter, and the rollers slide on the guide rails.

[0013] As a preferred embodiment, the outer part of the outer mold is symmetrically provided with two vertical outer back ribs, and the connection line of the two vertical outer back ribs is perpendicular to the connection line of the two isolation steel plates;

[0014] A movable platform connected to the outer mold receiving tray is provided at the bottom of the vertical outer back rib, and the movable platform can move along the guide rail direction. A diagonal brace with adjustable length is provided between the movable platform and the upper end of the vertical outer back rib, and the diagonal brace pushes the vertical outer back rib against the outer mold.

[0015] After adopting the above technical scheme, the beneficial effect of the utility model is as follows: the utility model realizes the structure of the concrete pouring area of ​​the wind power mixed tower by forming a relatively closed annular area between the detachable and assembled outer mold, inner mold and base, the upper part of the annular area is open, and a fixed-shaped wind power mixed tower concrete section can be formed by pouring concrete into the annular area. During assembly and disassembly, the outer mold and inner mold with larger radial dimensions are composed of a plurality of outer mold modules and inner mold modules spliced ​​in sequence, and fixed by a fixed screw rod, and the outer mold and inner mold can be clamped to the base by screwing the nuts at both ends of the fixed screw rod to achieve a sealed connection, and the extension lines of the fixed screw rod pass through the center of the outer mold and the inner mold, so that the phenomenon of deviation will not occur when the nuts are screwed.

[0016] An outer mold receiving tray which is separate from the base is arranged on the outer side of the base, and an inner mold receiving tray which is integrated with the base is arranged on the inner side. Firstly, a basis can be provided for fixing the outer bottom plate and the inner bottom plate to realize the installation of the outer mold and the inner mold. Moreover, when removing the mold, the outer bottom plate and the outer mold can be driven by the outer mold receiving tray to move outward as a whole, while the inner mold remains stationary, thereby realizing the mold removal and facilitating the removal of the formed concrete segment.

[0017] By embedding two symmetrical isolation steel plates in the annular area, the entire annular area can be divided into two parts. In this way, the cast concrete sections are two semicircular concrete sections, which are not only convenient for removal after demolding, but also reduce the weight and volume of a single product, and are also convenient for transportation and installation.

[0018] In summary, the utility model has a simple structure and is easy to operate in the concrete pouring area of ​​the wind turbine hybrid tower. It can use the cooperation between the outer mold, the inner mold and the base to achieve a firm and relatively sealed concrete pouring area. The overall structure is easy to disassemble and assemble, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a schematic diagram of the concrete section of the concrete tower;

[0021] Figure 2 This is a schematic cross-sectional view of an embodiment of the utility model;

[0022] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0023] Figure 4 It is a top view schematic diagram of the overall structure of the embodiment;

[0024] Figure 5 is a schematic structural diagram of the base in this embodiment;

[0025] Figure 6 It is a schematic diagram of the structure of the base and a single outer mold module;

[0026] Figure 7 is a schematic diagram of an end face of a base;

[0027] Figure 8 for Figure 7 A schematic cross-sectional view of the base, outer mold and inner mold shown;

[0028] Fig. 9 is a schematic cross-sectional view of another base, outer mold and inner mold;

[0029] Fig.10 This is the usage status diagram of the base;

[0030] In the figure: 1-outer mold; 2-inner mold; 3-annular area; 4-base; 5-outer mold module; 6-inner mold module; 7-fixing screw; 8-nut; 9-inner bottom plate; 10-outer mold receiving tray; 11-inner mold receiving tray; 12-isolation steel plate; 13-guide rail; 14-roller; 15-jack; 16-vertical outer back rib; 17-mobile platform; 18-diagonal brace; 19-concrete segment; 20-motor; 21-worker; 22-ladder; 23-outer bottom plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0032] Example:

[0033] like Figure 1 As shown, it is a schematic diagram of the concrete section of the concrete tower in the prior art. The whole concrete tower is cylindrical and is located at the bottom of the wind turbine when installed. The radial dimension is about 7m, and the upper and lower dimensions are consistent. Since the height is also large, it cannot be formed in one time, so it needs to be stacked in multiple layers, and each layer includes two semicircular concrete segments 19. The two concrete segments 19 form a circle, and the butt joints between the upper and lower layers are staggered to disperse the stress on each concrete segment 19 and make it evenly stressed.

[0034] The structure of the concrete pouring area of ​​the wind power tower in this embodiment is used for production Figure 1 In order to facilitate construction and improve construction efficiency, the concrete segment 19 of the utility model is usually installed next to the site of the wind turbine. After the concrete segment 19 is produced, it can be directly transported to the selected location for construction. Another important advantage of this embodiment is that it is very convenient to assemble and disassemble. After the construction is completed at one location, it can be quickly disassembled and immediately transferred to the next construction site. No deformation will occur during the transfer process. Moreover, the overall structure is made of aluminum, which is light in weight, greatly reducing the labor intensity of the workers and improving the efficiency of disassembly and assembly. It can be recycled after being abandoned and will not generate industrial waste. The specific structure of this embodiment is described in detail below.

[0035] like Figure 2 As shown, it is a cross-sectional schematic diagram of the embodiment as a whole, which mainly includes the following parts: outer mold 1, inner mold 2, base 4, wherein outer mold 1 and inner mold 2 are two concentric circular structures, and the space formed between them is annular area 3, and base 4 is arranged at the bottom of this annular area 3, and is in sealed contact with outer mold 1 and inner mold 2, and together constitutes a concrete pouring area. In this way, during construction, after the outer mold 1, inner mold 2 and base 4 are installed and fixed in place, concrete is poured into the annular area 3, and after the concrete is set, the outer mold 1 is removed, and the set concrete segment 19 stays on the base 4, and the result is Figure 1 The concrete section 19 required in the utility model. After the utility model is built as a whole, its overall structure is as follows Figure 4 As shown, a worker 21 climbs to the top via a ladder 22 to perform operations.

[0036] For a single manufacturer, the concrete segments 43 produced by the manufacturer are often of the same specification. Since the radial dimension can reach 7m, the radial dimensions of the entire outer mold 1 and the inner mold 2 are very large. This embodiment divides the entire outer mold 1 into 56 outer mold modules 5 with the same structure, and the inner mold 2 is also divided into about 50 inner mold modules 6 with the same structure. All outer mold modules 5 and inner mold modules 6 are spliced ​​in sequence in the form of end-to-end connection, and the outer mold modules 5 and the inner mold modules 6 are made of aluminum. In this way, the outer mold 1 and the inner mold 2 with large volume and weight are divided into single modules with very small volume and weight, which are very convenient in the process of assembly, disassembly and transportation. Moreover, during production, the inner mold 2 does not need to be disassembled and assembled after being fixed. It only needs to disassemble the outer mold 1 for recycling, which greatly reduces the cost and improves the efficiency.

[0037] like Figure 2 , 3As shown, the space between the outer mold module 5 and the inner mold module 6 is the annular area 3, and two adjacent outer mold modules 5 are detachably connected, and the same is true between two adjacent inner mold modules 6. As for how to achieve detachable connection between adjacent modules, there are many structures that can be implemented in the prior art, which will not be repeated here.

[0038] For the base 4 at the bottom, it is also a crucial component, such as Figure 5 , 6 As shown, the base 4 of this embodiment is composed of four arc structures with a central angle of 90°, and each base 4 is detachably connected by bolts and other structures, which can facilitate the transportation of the entire base 4. The structure of the base 4 is as follows Figure 7 , 8 , 9, and 10, where Figure 8 and Fig. 9 The structure of two different bases 4 is shown. The upper surface of the base 4 is the lower surface of the concrete section 19. The outer side of the base 4 is provided with an outer mold receiving tray 10 which is separated from the base 4, and the inner side is provided with an inner mold receiving tray 11 which extends horizontally inward and is integrally provided with the base 4. The main function of the outer mold receiving tray 10 and the inner mold receiving tray 11 is to cooperate with the outer mold 1 and the inner mold 2. For this purpose, an outer bottom plate 23 is provided on the bottom surface of each outer mold module 5, and an inner bottom plate 9 is provided on the bottom surface of each inner mold module 6. The outer bottom plate 23 falls on the outer mold receiving tray 10 and fits with it, and the inner bottom plate 9 falls on the inner mold receiving tray 11 and fits with it, and then bolts and other components are used to realize detachable connection. When the outer mold 1 is demolded, the base 4 is fixed, and the outer mold receiving tray 10 and the outer bottom plate 23 will drive the entire outer mold 1 to be divided into two to realize demolding. Of course, after the assembly is completed, the outer mold 1, the inner mold 2 and the base 4 need to be in sealed contact to form a closed annular area 3 to avoid leakage when pouring concrete.

[0039] In order to further ensure the stability of the entire equipment base, such as Figure 8 and Fig. 9 As shown, this embodiment further provides a plurality of fixed screw rods 7 in the circumferential direction, each of which passes through the outer mold 1, the base 4 and the inner mold 2, and the extension lines of the fixed screw rods 7 pass through the centers of the outer mold 1 and the inner mold 2, and nuts 8 are provided at both ends of the fixed screw rods 7, and assembly and disassembly can be achieved by screwing the nuts 8, and in any case, it can always be ensured that no offset occurs between the outer mold 1, the inner mold 2 and the base 4.

[0040] Figure 8 The base and Fig. 9 The difference between the two is whether the lower part of the outer mold receiving tray 10 is equipped with rollers 15. Fig. 9 and Fig.10Taking the example of the one with roller 15, this structure, in combination with the guide rail 13 provided in advance, can realize the demolding of the outer mold 1 conveniently and quickly, thus improving the production efficiency. When demolding, the outer mold receiving tray 10 drives the outer mold 1 to move outward, while the base 4 does not move. Since the entire outer mold 1 needs to be divided into two, the number of the outer mold receiving trays 10 is also two. Figure 4 , Figure 5 , Figure 6 As shown in the figure, guide rails 13 are arranged on both sides of the outer mold 1. The guide rail 13 on one side is used to move one of the outer mold receiving trays 10, and the guide rail 13 on the other side is used to move the other outer mold receiving tray 10. The power for its movement comes from the motor 20. Under the drive of the motor 20, the entire outer mold 1 can be moved in a Figure 4 In order to make the outer mold 1 evenly stressed, multiple pulling ropes can be arranged along the guide rail 13 to make the entire outer mold 1 evenly stressed. In addition, a jacking device 15 is provided below the outer mold receiving tray 10 to adjust its height when necessary.

[0041] like Figure 2 , Figure 3 and Figure 4 As shown, in order to further improve the firmness of the entire device, this embodiment also sets two vertical outer back ribs 16 on the outer ring of the outer mold 1, and the two vertical outer back ribs 16 are symmetrically arranged. A moving platform 17 connected to the outer mold receiving tray 10 is set at the bottom end of each vertical outer back rib 16, and the moving platform 17 can also drive the outer mold receiving tray 10 to move along the direction of the guide rail 13. A diagonal brace 18 is set on the moving platform 17, and the top of the diagonal brace 18 is connected to the top of the vertical outer back rib 16. By adjusting the length of the diagonal brace 18, the vertical outer back rib 16 can be firmly pressed on the outer mold 1 to make it more firm.

[0042] Since the annular area 3 surrounded by the outer mold 1 and the inner mold 2 is an annular area, and the concrete segment 19 to be produced is a half annular area, Figure 2 As shown, in this embodiment, two symmetrical isolation steel plates 12 are arranged in the annular area 3. The planes where the two isolation steel plates 12 are located pass through the center of the outer mold 1 and divide the annular area 3 into two.

[0043] Finally, the operation process of the utility model is further described.

[0044] (1) Assemble all parts into Figure 2 , Figure 4 In the structure shown, a worker 21 stands on the top to operate and pour concrete into the annular area 3;

[0045] (2) After the concrete solidifies, remove the fixed screw rod 7 at the bottom and remove the connecting pieces at symmetrical positions on the outer mold 1;

[0046] (3) Start the motor 20 to drive the outer mold receiving tray 10 and the outer mold module 5 to move outward. Figure 4 The movement in the direction of the arrow shown in the figure is divided into two, and the shaped concrete segment 19 is retained on the base 4;

[0047] (4) After the finished concrete segment 19 is removed, the motor 20 is reversed to drive the outer mold receiving tray 10 and the outer mold module 5 to move inward, and the entire outer mold 1 is restored to Figure 4 Re-fix the components to the positions shown in the figure and reuse them.

[0048] In summary, the utility model realizes that the structure of the wind power tower concrete pouring area is simple and easy to use. It can use the cooperation between the outer mold, the inner mold and the base to realize a firm and relatively sealed concrete pouring area. Moreover, the overall structure is easy to disassemble and assemble, and has good practicality.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A structure for the concrete pouring area of ​​a wind power tower, characterized in that: It comprises an outer mold (1) and an inner mold (2) which are arranged concentrically, wherein the outer mold (1) and the inner mold (2) are both circular and an annular area (3) is formed between the two. It also comprises a base (4), the base (4) being located at the bottom of the annular area (3) and being in sealed contact with the outer mould (1) and the inner mould (2); the base (4) being detachably connected to the outer mould (1) and the inner mould (2); and concrete being poured in the annular area (3) above the base (4).

2. The structure for realizing the concrete pouring area of ​​a wind power tower as claimed in claim 1, characterized in that: The outer mold (1) is formed by sequentially splicing a plurality of vertically extending outer mold modules (5), and the inner mold (2) is formed by sequentially splicing a plurality of vertically extending inner mold modules (6), and adjacent outer mold modules (5) and inner mold modules (6) are detachably connected; A plurality of fixed screw rods (7) are also provided in the circumferential direction of the base (4), and the fixed screw rods (7) sequentially penetrate the outer mold module (5), the base (4) and the inner mold module (6) to fix the three together, and nuts (8) are sleeved at both ends of the fixed screw rods (7), and the extension lines of the fixed screw rods (7) pass through the centers of the outer mold (1) and the inner mold (2).

3. The structure for realizing the concrete pouring area of ​​a wind power tower as claimed in claim 2, characterized in that: The bottom of the outer mold module (5) is provided with an outer bottom plate (23) fixed thereto as an integral unit, and the bottom of the inner mold module (6) is provided with an inner bottom plate (9) fixed thereto as an integral unit; The base (4) is provided with an outer mold receiving tray (10) which is separately provided therefrom on the outside, and with an inner mold receiving tray (11) which is integrally provided therewith on the inside. The outer bottom plate (23) and the inner bottom plate (9) are respectively attached to the outer mold receiving tray (10) and the inner mold receiving tray (11) and are detachably connected thereto by bolts.

4. The structure for realizing the concrete pouring area of ​​a wind power tower as claimed in claim 3, characterized in that: The base (4) is composed of four arc segments with a central angle of 90° that are detachably connected. Two isolation steel plates (12) are symmetrically embedded in the annular area (3). The plane where the isolation steel plates (12) are located passes through the center of the outer mold (1) and the inner mold (2). The two isolation steel plates (12) divide the annular area (3) equally.

5. The structure for realizing the concrete pouring area of ​​a wind power tower as claimed in claim 4, characterized in that: A guide rail (13) is also provided on the outer side of the outer mold (1), and the extension direction of the guide rail (13) is perpendicular to the plane where the isolation steel plate (12) is located; A roller (14) and a lifter (15) are also installed at the bottom of the outer mold receiving tray (10), and the roller (14) slides on the guide rail (13).

6. The structure for realizing the concrete pouring area of ​​a wind power tower as claimed in claim 5, characterized in that: The outer part of the outer mold (1) is also symmetrically provided with two vertical outer back ribs (16), and the connection line of the two vertical outer back ribs (16) is perpendicular to the connection line of the two isolation steel plates (12); A movable platform (17) connected to the outer mold receiving tray (10) is provided at the bottom of the vertical outer back rib (16); the movable platform (17) can move along the guide rail (13); a diagonal brace (18) with adjustable length is provided between the movable platform (17) and the upper end of the vertical outer back rib (16); the diagonal brace (18) presses the vertical outer back rib (16) against the outer mold (1).

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