Fabricated supporting structure of land wind generating set

Abstract

The utility model provides an onshore wind generating set assembly type supporting structure which comprises an assembly type foundation, an assembly type tower drum, a switching section and a steel strand, the assembly type foundation is formed by splicing a plurality of groups of prefabricated foundation components which are annularly arranged, and tensioning buried pipes are pre-buried on the prefabricated foundation components; the assembly type tower drum is arranged on the assembly type foundation and is formed by stacking and overlapping a plurality of sections of annular tower drum components, and each tower drum component is formed by splicing a plurality of groups of C-shaped prefabricated sheets which are annularly arranged; the switching section is arranged at the top of the assembly type tower drum and used for bearing a generator set steel tower; the multiple sets of steel strands penetrate through the tensioning buried pipe and are connected with the switching section, and the assembly type tower drum and the assembly type foundation are connected with the steel strands through grouting materials. Compared with a traditional supporting structure formed through pouring and binding construction, the supporting structure is shorter in construction period, the foundation can be dismantled after the service life period of a unit, and the construction cost is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, in particular to an assembled support structure for an onshore wind power generator set. Background Art

[0002] Onshore wind turbines are a vital component of wind power generation systems. They capture wind energy and convert it into electricity, providing clean, renewable energy to the power grid. Onshore wind turbines consist of five main components: the foundation, tower, rotor and hub (including blades), nacelle, and generator. These components work together to convert the wind's kinetic energy into electricity.

[0003] With the rapid development of new energy, large-scale wind turbines are becoming increasingly common, placing higher demands on the mechanical performance, construction efficiency, and quality of wind turbine foundations. As onshore wind turbines move toward larger megawatts and larger diameters, steel-concrete towers have become the mainstream trend.

[0004] Due to the short construction window in areas such as the Three North Regions and the Shagohuang Region, the quality of large-volume concrete pouring is difficult to control, the concrete transportation distance is long, and the pouring supply is easily interrupted. The foundation structure of traditional concrete towers is mostly constructed through cumbersome pouring and binding. This construction method has a long construction period, and the foundation cannot be dismantled after the service life cycle of the unit, resulting in increased construction costs. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model proposes an assembled support structure for an onshore wind turbine generator set to solve the technical problem proposed in the above background technology that the existing wind turbine generator set support tower is mostly constructed through cumbersome pouring and binding, which has a long construction period and the foundation cannot be dismantled after the service life cycle of the unit, resulting in increased construction costs.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an assembled support structure for an onshore wind turbine generator set, comprising:

[0007] The assembled foundation is formed by splicing together multiple groups of prefabricated foundation components arranged in an annular direction, and the prefabricated foundation components are pre-embedded with tensioned buried pipes;

[0008] The assembled tower is arranged on the assembled foundation and is composed of multiple sections of annular tower components stacked and overlapped, and the tower components are composed of multiple groups of circumferentially arranged C-shaped prefabricated pieces;

[0009] A transition section is provided at the top of the assembled tower to support the generator set steel tower; and

[0010] There are multiple groups of steel strands, which pass through the tensioned buried pipe and are connected to the transition section. The assembled tower and the assembled foundation are connected to the steel strands by pouring grouting material.

[0011] In a preferred embodiment, the multiple groups of prefabricated foundation components are connected by U-shaped tubes and by pouring grouting material. Grouting grooves are opened on the prefabricated foundation components, and the grouting grooves on the multiple groups of prefabricated foundation components are connected.

[0012] In a preferred embodiment, the prefabricated foundation component includes a base plate, a platform column is provided on the base plate, and the base plate and the platform column are connected by a reinforcing beam.

[0013] In a preferred embodiment, a group of clamps are provided on the outer sides of the multiple groups of prefabricated foundation components.

[0014] In a preferred embodiment, bolt channels are provided at both ends of the C-shaped preformed sheets, and each two adjacent groups of the C-shaped preformed sheets are connected by arc-shaped bolts, which pass through two groups of the bolt channels and are screwed with nuts.

[0015] In a preferred embodiment, both ends of the C-shaped prefabricated sheet are provided with waterproof sealing reserved grooves.

[0016] In a preferred embodiment, the C-shaped prefabricated piece is provided with a hanging point for installing a hanging ring.

[0017] In a preferred embodiment, the multiple groups of C-shaped prefabricated sheets in two adjacent groups of tower components are staggered, and the diameters of the multiple groups of tower components decrease sequentially from bottom to top.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The prefabricated foundation and tower in this support structure are completely prefabricated with concrete, facilitating the transportation of individual components and ensuring consistent quality control of the support structure. This effectively avoids concrete supply disruptions when constructing in areas with short construction windows, such as the Three Norths and the Shagohuang region. Assembly and disassembly are also quick and easy, facilitating the disassembly of the support structure after the wind turbine's service life, effectively reducing construction costs. Furthermore, the prefabricated foundation is connected to the transition section via steel strands, expediting construction and reducing the need for rebar tying, thereby improving overall construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the specific embodiments. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0021] Figure 1 This is a schematic diagram of the internal structure of an assembled support structure of an onshore wind turbine generator set provided by the present invention;

[0022] Figure 2 This is a top view of an assembled foundation in an assembled support structure for an onshore wind turbine generator set according to the present invention;

[0023] Figure 3 This is a cross-sectional view of an assembled foundation in an assembled support structure of an onshore wind turbine generator set according to the present invention;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of a tower member in an assembled support structure of an onshore wind turbine generator set according to the present invention;

[0025] Figure 5 The utility model is a schematic structural diagram of multiple tower components in an assembled support structure of an onshore wind turbine generator set.

[0026] Reference numerals:

[0027] 1. Prefabricated foundation components; 101. Bottom plate; 102. Reinforcement beam; 103. Pillar;

[0028] 2. Tensioned buried pipe; 3. Grouting groove; 4. Clamp; 5. C-type prefabricated sheet; 6. Bolt channel; 7. Waterproof sealing reserved groove; 8. Waterproof sealing reserved groove; 9. Arc bolt; 10. Transition section; 11. Steel strand. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technicians in this field can make some non-essential improvements and adjustments to the present invention based on the above application content.

[0030] Example:

[0031] like Figures 1 to 3 As shown, the present invention provides an assembled support structure for an onshore wind turbine generator set, comprising an assembled foundation, an assembled tower, a transition section 10, and steel strands 11. The assembled foundation is formed by splicing together multiple sets of circumferentially arranged prefabricated foundation components 1. Tensioning buried pipes 2 are pre-embedded in the prefabricated foundation components 1. The multiple sets of prefabricated foundation components 1 are connected by U-shaped pipes and by pouring grouting material. Grouting grooves 3 are provided in the prefabricated foundation components 1, and the grouting grooves 3 on the multiple sets of prefabricated foundation components 1 are connected. A set of clamps 4 are sleeved on the outside of the multiple sets of prefabricated foundation components 1.

[0032] The prefabricated foundation components 1 in the prefabricated foundation are constructed from precast concrete, making them easy to transport and assemble. Multiple groups of prefabricated foundation components 1 are initially installed using U-shaped tubes. High-strength grouting material is poured into the grouting troughs 3 to quickly form the multiple groups of prefabricated foundation components 1 into a single unit. The provision of clamps 4 improves the stability between the multiple groups of prefabricated foundation components 1, effectively preventing deformation of the prefabricated foundation. The prefabricated foundation components 1 include a base plate 101, on which columns 103 are provided. The base plate 101 and columns 103 are connected by reinforcing beams 102, which increase the overall bearing strength of the prefabricated foundation components 1.

[0033] like Figure 1 、 4 As shown in Figure 5, in this embodiment, the prefabricated tower is composed of multiple sections of annular tower components stacked and overlapped, and is arranged on a prefabricated basis. The tower components are composed of multiple groups of circumferentially arranged C-shaped prefabricated sheets 5. Bolt channels 6 are provided at both ends of the C-shaped prefabricated sheets 5. Each two adjacent groups of C-shaped prefabricated sheets 5 are connected by arc-shaped bolts 9. The arc-shaped bolts 9 pass through two groups of bolt channels 6 and are screwed with nuts.

[0034] The multiple sets of C-shaped prefabricated segments within the assembled tower are also precast from concrete. These can be stacked and arranged on a transport vehicle to improve transportation efficiency. The multiple sets of C-shaped prefabricated segments 5 are connected by arc-shaped bolts 9 to form a ring-shaped tower component. These multiple sets of tower components are then overlapped to form the assembled tower, improving construction efficiency. Furthermore, it will be appreciated that in some preferred embodiments, the assembled foundation may consist of 16 or 24 sets of prefabricated foundation components 1, and the tower component may consist of 4 sets of C-shaped prefabricated segments 5.

[0035] like Figure 4 As shown, in this embodiment, both ends of the C-shaped prefabricated segments 5 are provided with reserved waterproof sealing grooves 7 to facilitate the installation of sealing strips to waterproof the entire prefabricated tower. The C-shaped prefabricated segments 5 are provided with lifting points 8 for installing lifting rings to facilitate the lifting of the tower components. The multiple groups of C-shaped prefabricated segments 5 in two adjacent groups of tower components are staggered, and the diameters of the multiple groups of tower components decrease from bottom to top to increase the overall load-bearing capacity of the prefabricated tower.

[0036] like Figure 1As shown, in this embodiment, the transition section 10 is set at the top of the prefabricated tower to support the steel tower of the generator set. The transition section 10 is a traditional transition component for supporting the generator set, and the specific structure will not be repeated here. There are multiple groups of steel strands 11, which pass through the tensioning buried pipe 2 and are connected to the transition section 10. The prefabricated tower and the prefabricated foundation are connected to the steel strands 11 by pouring grouting material. After the assembly of the prefabricated tower is completed, the transition section 10 is set at the top of the prefabricated tower and connected to the steel strands 11, and then the reinforced grout is poured into the prefabricated tower so that the entire prefabricated foundation, prefabricated tower and the transition section 10 form a whole.

[0037] Specific usage and beneficial effects of this utility model:

[0038] The prefabricated foundation and prefabricated tower in the support structure are all made of completely prefabricated concrete, which facilitates the transportation of various components and ensures the overall quality of the support structure. When construction is carried out in areas with short construction windows such as the Three North Regions and the Shagohuang Region, it can effectively avoid the interruption of concrete supply, and the assembly and disassembly are convenient and fast, which facilitates the disassembly of the support structure of the wind turbine after its service life cycle, effectively reducing the construction cost. At the same time, the prefabricated foundation is connected to the transition section 10 by the steel strand 11, which is fast to construct, reduces the steel bar binding process, and improves the overall construction efficiency.

[0039] The above shows and describes the basic principles, main features, and advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments. It is obvious to those skilled in the art that modifications or improvements can be made based on the present invention. Therefore, such modifications or improvements made without departing from the spirit of the present invention are within the scope of protection claimed by the present invention.

Claims

1. An assembled support structure for an onshore wind turbine generator set, characterized in that: Includes: The assembled foundation is formed by splicing a plurality of prefabricated foundation components (1) arranged in an annular direction, wherein tensioned buried pipes (2) are pre-buried on the prefabricated foundation components (1); An assembled tower is arranged on the assembled foundation and is composed of multiple sections of annular tower components stacked and overlapped, wherein the tower components are composed of multiple groups of annularly arranged C-shaped prefabricated sheets (5) spliced ​​together; A transition section (10) is provided at the top of the assembled tower and is used to support the generator set steel tower; and The steel strands (11) are provided in multiple groups and pass through the tensioned buried pipe (2) and are connected to the transition section (10). The assembled tower and the assembled foundation are connected to the steel strands (11) by pouring grouting material.

2. The assembled support structure for an onshore wind turbine generator set according to claim 1, characterized in that: Multiple groups of prefabricated foundation components (1) are connected via U-shaped tubes and connected by pouring grouting material. Grouting grooves (3) are provided on the prefabricated foundation components (1), and the grouting grooves (3) on the multiple groups of prefabricated foundation components (1) are connected.

3. The assembled support structure for an onshore wind turbine generator set according to claim 1, characterized in that: The prefabricated foundation component (1) comprises a base plate (101), a platform column (103) is provided on the base plate (101), and the base plate (101) and the platform column (103) are connected via a reinforcing beam (102).

4. The assembled support structure for an onshore wind turbine generator set according to claim 1, characterized in that: A group of clamps (4) are sleeved on the outer sides of the plurality of groups of prefabricated foundation components (1).

5. The assembled support structure for an onshore wind turbine generator set according to claim 1, characterized in that: Bolt channels (6) are provided at both ends of the C-shaped prefabricated sheets (5), and each two adjacent groups of the C-shaped prefabricated sheets (5) are connected by arc-shaped bolts (9). The arc-shaped bolts (9) pass through two groups of the bolt channels (6) and are screwed with nuts.

6. The assembled support structure for an onshore wind turbine generator set according to claim 1, characterized in that: Both ends of the C-shaped prefabricated sheet (5) are provided with waterproof sealing reserved grooves (7).

7. The assembled support structure for an onshore wind turbine generator set according to claim 1, characterized in that: The C-shaped prefabricated piece (5) is provided with a hanging point (8) for installing a hanging ring.

8. The assembled support structure for an onshore wind turbine generator set according to claim 1, characterized in that: The multiple groups of C-shaped prefabricated sheets (5) in two adjacent groups of tower components are staggered, and the diameters of the multiple groups of tower components decrease in sequence from bottom to top.

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