Tower and wind power plant

Abstract

The utility model discloses a tower and wind power generation equipment relates to wind power generation technical field, wherein, a tower is used for wind power generation equipment, the tower includes a plurality of tower section that connects in proper order, a plurality of tower section includes first section tower section, tail section tower section and intermediate tower section, each tower section includes: tower drum, first connecting seat and second connecting seat, first connecting seat with one side of tower drum is connected, and second connecting seat with one side of tower drum away from first connecting seat is connected, and first connecting seat is connected with second connecting seat through steel rope cable, first section tower section is connected with splicing anchor cage away from one end of intermediate tower section, and splicing anchor cage is used to fix tower drum. The utility model can utilize steel rope cable, when the vibration and the shaking of tower are generated, carry out the traction and the buffer, and the structural strength of tower is improved.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation technology, and in particular to a tower and wind power generation equipment. Background Technology

[0002] As the core support structure of wind turbine equipment, the wind turbine tower is a crucial carrier connecting the ground foundation with the nacelle and rotor. Its design and performance directly determine the stability and operational efficiency of the entire wind power generation system. The tower height needs to be precisely set according to the wind speed characteristics of the wind farm and the hub height requirements. From low-wind-speed towers of tens of meters to offshore wind turbine towers of hundreds of meters, different specifications of towers must be adapted to specific environments and unit parameters. In terms of structural materials, most mainstream towers currently use high-strength steel, forming a columnar structure through segmented welding or flange connections. Some small units or special scenarios may also use concrete to balance cost and support requirements. During operation, the tower must not only bear the huge static loads of equipment such as the nacelle, generator, and rotor, but also continuously resist the aerodynamic loads under wind force, the periodic dynamic loads generated by rotor rotation, and the impacts from extreme conditions such as strong winds, turbulence, and earthquakes. At the same time, it must effectively suppress the vibration and sway generated during unit operation to avoid resonance phenomena that could damage the equipment. However, while existing wind power towers play a crucial role in resisting wind and generator sway, there are still some issues with their core structural strength. Utility Model Content

[0003] The main purpose of this invention is to propose a tower structure that aims to suppress tower swaying and vibration and improve the structural strength of the tower.

[0004] To achieve the above objectives, this utility model proposes a tower for wind power generation equipment. The tower includes multiple tower sections connected in sequence, each tower section including a first tower section, a last tower section, and an intermediate tower section. Each tower section includes: a tower body, a first connecting seat, and a second connecting seat. The first connecting seat is connected to one side of the tower body; and the second connecting seat is connected to the side of the tower body away from the first connecting seat. The first connecting seat is connected to the second connecting seat via a steel cable. A spliced ​​anchor cage is connected to the end of the first tower section away from the intermediate tower section, and the spliced ​​anchor cage is used to fix the tower body.

[0005] In one embodiment, the first connector and the second connector are configured in a one-to-one correspondence to form a structural group, and multiple structural groups are provided.

[0006] In one embodiment, each of the tower sections is provided with flanges at both ends, and the flanges are used to connect adjacent tower sections by bolts; wherein, the first connecting seat and the second connecting seat are respectively installed on the two flanges.

[0007] In one embodiment, a limiting member is also provided inside the tower, and a limiting hole is provided in the middle of the limiting member, through which the steel cable passes.

[0008] In one embodiment, the limiting hole extends radially toward the tower to form a strip-shaped through hole; and / or, the inner wall of the limiting hole is provided with an installation groove, in which a plurality of spheres are rolled and installed.

[0009] In one embodiment, the splicing anchor cage includes a plurality of splicing units spaced apart circumferentially along the tower section. Each splicing unit includes a first anchor rod and a splicing anchor plate. The first anchor rod is used to connect and fix the first tower section to the tower section. The splicing anchor plate is used to connect and fix the first anchor rod. The splicing anchor plate is used to anchor in the foundation. The first anchor rod is partially anchored in the foundation and partially extends out of the foundation to be threadedly connected to a flange provided on the first tower section.

[0010] In one embodiment, each end of the first anchor rod is connected to a splicing anchor plate; and / or, the splicing anchor plate has a splicing hole extending through it in the thickness direction, and at least two splicing anchor plates are fitted together in the thickness direction so that the splicing holes are connected, and a second anchor rod is inserted through the interconnected splicing holes.

[0011] In one embodiment, the edge of any of the splicing anchor plates has a slot formed in the thickness direction, the slot being used to connect with the adjacent first anchor rod.

[0012] In one embodiment, at least one of the first anchor bolt and the second anchor bolt is used to install the first connecting seat.

[0013] This utility model also provides a wind power generation device, including the aforementioned tower. The tower is used for wind power generation equipment. The tower includes multiple tower sections connected in sequence. The multiple tower sections include a first tower section, a last tower section, and an intermediate tower section. Each tower section includes: a tower cylinder, a first connecting seat, and a second connecting seat. The first connecting seat is connected to one side of the tower cylinder; and the second connecting seat is connected to the side of the tower cylinder away from the first connecting seat. The first connecting seat is connected to the second connecting seat via a steel cable. A spliced ​​anchor cage is connected to the end of the first tower section away from the intermediate tower section. The spliced ​​anchor cage is used to fix the tower cylinder.

[0014] The technical solution of this utility model sets up multiple tower sections connected in sequence, which can connect the first tower section, the last tower section and the middle tower section in sequence to form a complete tower to support the wind power generation equipment. A splicing anchor cage is connected at the first tower section to fix the bottom of the first tower section. At the same time, this solution also sets up a first connecting seat and a second connecting seat, which are connected by steel cables. The steel cables can be used to pull and buffer when the tower vibrates and shakes, thereby improving the structural strength of the tower. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 A schematic diagram of a tower embodiment provided by this utility model; Figure 2 For having Figure 1 Cross-sectional view of the central tower section; Figure 3 For having Figure 1 Top view of the middle limiting component; Figure 4 for Figure 3 Enlarged structural diagram at point A; Figure 5 For having Figure 1 Schematic diagram of the auxiliary anchor plate; Figure 6 For having Figure 1 Schematic diagram of the structure of the spliced ​​anchor cage; Figure 7 for Figure 6 Enlarged structural diagram at point B; Figure 8 For having Figure 6 A structural schematic diagram of the middle spliced ​​anchor plate and the second anchor rod; Figure 9 For having Figure 6 Exploded view of the middle spliced ​​anchor plate and the second anchor rod.

[0017] Explanation of icon numbers: 1. First tower section; 11. Auxiliary anchor plate; 2. Tail tower section; 3. Middle tower section; 4. Tower; 41. Flange; 42. Limiting element; 421. Limiting hole; 422. Sphere; 5. First connecting seat; 6. Second connecting seat; 7. Steel cable; 8. Splicing the anchor cage; 81. First anchor bolt; 82. Splicing the anchor plate; 821. Splicing hole; 822. Grooving; 83. Second anchor bolt.

[0018] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0020] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0021] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0022] During operation, the tower must not only bear the enormous static loads of equipment such as the nacelle, generator, and rotor, but also continuously resist the aerodynamic loads from wind, the periodic dynamic loads generated by rotor rotation, and the impacts from extreme conditions such as strong winds, turbulence, and earthquakes. Simultaneously, it must effectively suppress vibrations and swaying generated during turbine operation to prevent resonance damage to the equipment. However, while existing wind turbine towers bear the important responsibility of resisting wind and generator swaying, certain issues remain regarding their core structural strength.

[0023] Therefore, this utility model proposes a tower.

[0024] Please see Figure 1 and Figure 2 In one embodiment of this utility model, a tower is used for wind power generation equipment. The tower includes multiple tower sections connected in sequence. The multiple tower sections include a first tower section 1, a last tower section 2, and an intermediate tower section 3. Each tower section includes a tower cylinder 4, a first connecting seat 5, and a second connecting seat 6. The first connecting seat 5 is connected to one side of the tower cylinder 4. The second connecting seat 6 is connected to the side of the tower cylinder 4 away from the first connecting seat 5. The first connecting seat 5 is connected to the second connecting seat 6 through a steel cable 7. A splicing anchor cage 8 is connected to the end of the first tower section 1 away from the intermediate tower section 3. The splicing anchor cage 8 is used to fix the tower cylinder 4.

[0025] In this embodiment of the invention, by setting multiple tower sections connected in sequence, the first tower section 1, the last tower section 2, and the middle tower section 3 can be connected sequentially to form a complete tower to support the wind power generation equipment. A splicing anchor cage 8 is connected at the first tower section 1 to fix the bottom of the first tower section 1. At the same time, this solution also provides a first connecting seat 5 and a second connecting seat 6, which are connected by a steel cable 7. The steel cable 7 can be used to pull and buffer when the tower vibrates and sways, thereby improving the structural strength of the tower.

[0026] In one embodiment, the first connecting seat 5 and the second connecting seat 6 correspond one-to-one to form a structural group, and multiple structural groups are provided.

[0027] In the embodiments of this utility model, by setting up a structural group consisting of multiple first connecting seats 5 and second connecting seats 6, multiple steel cables can be connected, thereby enabling more stable and reliable pulling and buffering.

[0028] In one embodiment, each tower 4 is provided with flanges 41 at both ends, and the flanges 41 are used to connect adjacent towers 4 by bolts; wherein, the first connecting seat 5 and the second connecting seat 6 are respectively installed on the two flanges 41.

[0029] In this embodiment of the invention, adjacent tower sections 4 are connected by flanges 41, thereby connecting the first tower section 1, the middle tower section 3, and the last tower section 2. At the same time, the first connecting seat 5 and the second connecting seat 6 in this solution are respectively installed on the two flanges 41, which can pull and buffer each tower section 4, thereby improving the structural strength of the tower section 4.

[0030] It should be noted that an auxiliary anchor plate 11 can also be set at the connection between the first tower section 1 and the splicing anchor cage 8 to improve the reliability of the connection. The auxiliary anchor plate 11 can be multiple auxiliary anchor plates 11 spliced ​​together to form a ring, or it can be a complete ring anchor plate. This utility model does not limit this.

[0031] It is understood that in this embodiment, the first connecting seat 5 and the second connecting seat 6 are both set as connecting seats with collars that have the same structure but different orientations. The steel cable 7 can be connected to the collars on the first connecting seat 5 and the second connecting seat 6 by welding, bundling welding or bundling cooperation. This utility model does not limit this.

[0032] It should be understood that the intermediate tower section 3 can be set as one or more according to the actual tower needs, and this utility model does not limit it here.

[0033] See Figure 2 and Figure 3 In one embodiment, a limiting member 42 is also provided inside the tower 4, and a limiting hole 421 is provided in the middle of the limiting member 42, through which the steel cable 7 is inserted.

[0034] In the embodiments of this utility model, by providing a limiting member 42 with a limiting hole 421 and placing the limiting member 42 in the middle of the tower 4, the limiting member 42 can limit the middle of the steel cable 7, thus preventing the steel cable 7 from shaking too much when being pulled and buffered.

[0035] See Figure 4 In one embodiment, the limiting hole 421 extends radially toward the tower cylinder 4 to form a strip-shaped through hole; and / or, the inner wall of the limiting hole 421 is provided with an installation groove, in which a plurality of balls 422 are rolled and installed.

[0036] In this embodiment of the invention, the limiting hole 421 is configured as a radially arranged strip-shaped through hole facing the tower 4. When the tower 4 bends and sways, the steel cable 7 at the bending position and the steel cable 7 on the opposite side will generate a large vibration amplitude and pulling force. The strip-shaped through hole allows the steel cable 7 to move radially towards the tower 4, which can better buffer and pull. At the same time, the inner wall of the limiting hole 421 is provided with an installation groove and a ball 422, so that the movement and friction of the steel cable 7 in the limiting hole 421 is converted into the rolling of the ball 422, reducing the collision and friction between the steel cable 7 and the limiting hole 421.

[0037] See Figure 5 and Figure 6In one embodiment, the splicing anchor cage 8 includes a plurality of splicing units spaced apart circumferentially along the tower section 4. Each splicing unit includes a first anchor rod 81 and a splicing anchor plate 82. The first anchor rod 81 is used to connect and fix the tower section 4 of the first tower section 1. The splicing anchor plate 82 is used to connect and fix the first anchor rod 81. The splicing anchor plate 82 is used to anchor in the foundation. The first anchor rod 81 is partially anchored in the foundation and partially extends out of the foundation to be threadedly connected to the flange 41 plate provided on the tower section 4 of the first tower section 1.

[0038] In the embodiments of this utility model, the splicing anchor cage 8 is configured as multiple splicing units, each including a first anchor rod 81 and a splicing anchor plate 82. This allows for the transport of smaller splicing units during transportation and their on-site splicing to form a complete splicing anchor cage 8, facilitating transportation.

[0039] It should be understood that a smaller annular anchor cage may also be fitted inside the spliced ​​anchor cage 8 to connect the reinforcing bars extending into the outside of the spliced ​​anchor cage.

[0040] See Figure 7 , Figure 8 and Figure 9 In one embodiment, a splicing anchor plate 82 is connected to both ends of the first anchor rod 81; and / or, a splicing hole 821 is provided through the splicing anchor plate 82 in the thickness direction, and at least two splicing anchor plates 82 are fitted together in the thickness direction so that the splicing holes 821 are connected, and a second anchor rod 83 is provided through the splicing holes 821 that are connected to each other.

[0041] In this embodiment of the present invention, the two ends of the first anchor rod 81 are connected to splicing anchor plates 82, so that after the splicing of the splicing anchor cage 8 is completed, both ends of the first anchor rod 81 can be fixed by the splicing anchor plates 82 that are connected to each other. The splicing anchor plates 82 are provided with splicing holes 821, so that the second anchor rod 83 can be passed through the splicing holes 821 of multiple different splicing anchor plates 82 to connect and fix them.

[0042] It should be noted that the above-mentioned related technical features, such as "a splicing anchor plate 82 is connected to both ends of the first anchor rod 81" and "a splicing hole 821 is provided through the splicing anchor plate 82 in the thickness direction, and at least two splicing anchor plates 82 are attached in the thickness direction so that the splicing holes 821 are connected, and a second anchor rod 83 is provided through the interconnected splicing holes 821", can be selected or provided simultaneously. This utility model does not limit this.

[0043] It is understandable that the first tower section 1 is connected to the spliced ​​anchor cage 8 through the first anchor rod 81, the second anchor rod 83, and the flange 41. The first anchor rod 81 and the second anchor rod 83 pass through the through hole on the flange 41 of the first tower section 1 and are bolted to the flange 41.

[0044] In one embodiment, the edge of any splicing anchor plate 82 has a slot 822 formed in the thickness direction, the slot 822 being used to connect with the adjacent first anchor rod 81.

[0045] In the embodiments of this utility model, by providing a slot 822 on the splicing anchor plate 82, the slot 822 can be used to connect with the first anchor rod 81 on the adjacent splicing anchor plate 82, making the connection of the splicing anchor plate 82 more reliable.

[0046] In one embodiment, at least one of the first anchor bolt 81 and the second anchor bolt 83 is used to install the first connecting seat 5.

[0047] In this embodiment of the invention, by connecting at least one of the first anchor rod 81 and the second anchor rod 83 to the first connecting seat 5, the first connecting seat 5 can be fixed using the first anchor rod 81 and the second anchor rod 83. Specifically, in this embodiment, the first connecting seat 5 is fixed by threading a portion of the second anchor rod 83 to the first connecting seat 5.

[0048] It should be noted that the connection method between the first connecting seat 5 and the first anchor rod 81 or the second anchor rod 83 in this embodiment can be threaded connection, welding or other fixed connection method. Specifically, in this embodiment, after the tower 4 and the spliced ​​anchor cage 8 are connected, the first connecting seat 5 is installed by threaded connection. It can be understood that the connection method between the second connecting seat 6 and the flange 41 can also be fixed by threaded connection or welding, and connected to the bolts on the flange 41.

[0049] This utility model also provides a wind power generation device, which includes a tower. The specific structure of the tower is as described in the above embodiments. Since this wind power generation device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0050] In the embodiments of this utility model, by setting up the above-mentioned tower to support the wind power generation equipment, swaying and vibration can be suppressed, and structural strength can be improved.

[0051] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A tower for wind power generation equipment, characterized in that, The tower frame comprises multiple tower sections connected in sequence, each tower section including a first tower section, a last tower section, and an intermediate tower section, and each tower section includes: Tower; A first connecting seat, the first connecting seat being connected to one side of the tower; and, The second connecting seat is connected to the side of the tower away from the first connecting seat, and the first connecting seat is connected to the second connecting seat by a steel cable; The first tower section is connected to a splicing anchor cage at the end furthest from the middle tower section, and the splicing anchor cage is used to fix the tower.

2. The tower as described in claim 1, characterized in that, The first connector and the second connector are in one-to-one correspondence to form a structural group, and multiple structural groups are provided.

3. The tower as described in claim 1, characterized in that, Each of the tower sections is provided with flanges at both ends, which are used to connect adjacent tower sections by bolts; The first connecting seat and the second connecting seat are respectively installed on the two flanges.

4. The tower as described in claim 1, characterized in that, A limiting component is also provided inside the tower, and a limiting hole is provided in the middle of the limiting component, through which the steel cable passes.

5. The tower as described in claim 4, characterized in that, The limiting hole extends radially toward the tower cylinder to form a strip-shaped through hole; and / or, The inner wall of the limiting hole is provided with an installation groove, and multiple balls are rolled and installed in the installation groove.

6. The tower as described in claim 1, characterized in that, The splicing anchor cage includes multiple splicing units spaced circumferentially along the tower, each splicing unit comprising: The first anchor bolt is used to connect and fix the first tower section to the tower cylinder; and, A splicing anchor plate, which is used to connect and fix the first anchor rod; The spliced ​​anchor plate is used to anchor the first anchor rod in the foundation. The first anchor rod is partially anchored in the foundation and partially extends out of the foundation to be threadedly connected to the flange on the tower section.

7. The tower as described in claim 6, characterized in that, Both ends of the first anchor bolt are connected to one of the spliced ​​anchor plates; and / or, The splicing anchor plate has a splicing hole through it in the thickness direction, and at least two splicing anchor plates are attached in the thickness direction so that the splicing hole is connected, and a second anchor rod is installed through the splicing hole that is connected to each other.

8. The tower as described in claim 6, characterized in that, The edge of any of the splicing anchor plates has a slot formed in the thickness direction, the slot being used to connect with the adjacent first anchor rod.

9. The tower as described in claim 7, characterized in that, At least one of the first anchor bolt and the second anchor bolt is used to install the first connecting seat.

10. A wind power generation device, characterized in that, Including the tower as described in any one of claims 1 to 9.

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