Upright column connector and cylindrical fan tower

Abstract

The invention relates to the technical field of steel structure engineering, in particular to a stand column connector and a cylindrical fan tower. The device comprises external thread studs, a sleeve, a plurality of stud stiffened plates, a stand column connector shell and diagonal web member connecting plates, wherein the external thread studs are arranged at the two ends of the sleeve; a plurality of stud stiffened plates are uniformly distributed on the sleeve; the stand column connector shell is arranged on the outer sides of the stud stiffened plates in a sleeving manner; the diagonal web member connecting plate is fixed to the outer side of the stand column connector shell. The stand column connector comprises the external thread stud, the sleeve, the stud stiffened plate, the stand column connector shell and the diagonal web member connecting plate. The stand column connector has the advantages of being excellent in stress performance, fatigue performance, anti-seismic performance and installation efficiency. According to the stand column connector, the purposes of reducing cost and increasing efficiency are achieved for the construction cost of the fan tower.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure engineering, and in particular to a column connector and a cylindrical fan tower. Background Art

[0002] The government advocates the research and development of new energy technologies. In view of the decreasing land resources available for wind power generation, in order to improve the efficiency of wind power generation, it is possible to consider increasing the height of the wind turbine tower to achieve higher power generation benefits. However, the construction height of traditional single-tube tower wind turbines is limited, generally not exceeding 120 meters. Therefore, it is necessary to optimize the structural design of wind turbine towers to break through the height limit and meet the demand for higher power generation efficiency.

[0003] The existing technology of the grid shell node and the above nodes mainly have the following problems: 1. The first method has a large number of bolts and requires high processing accuracy of the steel structure; 2. The second method uses cast steel nodes, which consumes a large amount of steel and is complex to process, and has a high cost; 3. The above two methods are not suitable for the grid shell cylindrical connection node method. Therefore, it is necessary to propose a form suitable for the cylindrical grid shell wind turbine tower node connection. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a column connector and a cylindrical wind turbine tower, which solves at least one of the above-mentioned technical problems.

[0005] To achieve the above objectives and other related objectives, the present invention provides a column connector, comprising:

[0006] A sleeve having external threaded studs at both ends;

[0007] A plurality of stud reinforcement plates, which are evenly distributed on the sleeve;

[0008] A column connector housing, which is sleeved on the outer sides of the plurality of stud reinforcement plates;

[0009] The diagonal web connecting plate is fixed to the outer side of the column connecting head shell.

[0010] In one embodiment of the present invention, it further includes:

[0011] The connecting plate stiffening plate is fixed between the column connecting head shell and the diagonal web rod connecting plate.

[0012] In one embodiment of the present invention, bolt holes are provided on the diagonal web connecting plate.

[0013] In one embodiment of the present invention, an upper net shell column is sleeved on the upper end of the externally threaded stud, and a lower net shell column is sleeved on the lower end of the externally threaded stud.

[0014] In one embodiment of the present invention, the upper shell column comprises:

[0015] A first internally threaded sleeve, which is sleeved on the upper end of the externally threaded stud;

[0016] A plurality of first internally threaded casing reinforcement plates, wherein the plurality of first internally threaded casing reinforcement plates are evenly distributed on the outer side of the first internally threaded casing;

[0017] The upper shell column outer shell is sleeved on the outer sides of the plurality of the first internally threaded sleeve stiffening plates.

[0018] In one embodiment of the present invention, the lower grid shell column comprises:

[0019] A second internally threaded sleeve, which is sleeved on the lower end of the externally threaded stud;

[0020] A plurality of second internally threaded casing reinforcement plates, wherein the plurality of second internally threaded casing reinforcement plates are evenly distributed on the outer side of the second internally threaded casing;

[0021] The lower grid shell column outer shell is sleeved on the outer sides of a plurality of the second internally threaded sleeve stiffening plates.

[0022] In one embodiment of the present invention, a reverse thread is formed between the upper end of the external thread stud and the lower end of the external thread stud.

[0023] The present invention also provides a cylindrical wind turbine tower, comprising the above-mentioned column connector, the cylindrical wind turbine tower comprising:

[0024] Fan blades, which are fixed on the bearings of the generator set;

[0025] A generator set is fixed to the top of the tower by bolts;

[0026] The tower frame comprises a column and a diagonal brace;

[0027] A column, wherein two of the columns are fixedly connected via the column connector;

[0028] The diagonal brace is fixedly connected to the column via the column connecting head.

[0029] In one embodiment of the present invention, the structures of the two columns are the same as the structures of the upper grid shell column and the lower grid shell column.

[0030] In one embodiment of the present invention, the columns are made of steel structure or steel tube concrete structure, and the diagonal web members are made of steel structure or steel tube concrete structure.

[0031] As described above, a column connector and a cylindrical wind turbine tower of the present invention have the following beneficial effects:

[0032] (1) The column connecting head of the present invention comprises an external threaded stud, a sleeve, a stud reinforcing plate, a column connecting head shell, and a diagonal web connecting plate. The present invention has the characteristics of excellent stress performance, good fatigue performance, excellent seismic performance, and excellent installation efficiency.

[0033] (2) The column connector of the present invention reduces the construction cost of the wind turbine tower and increases efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A structural diagram of the columns and diagonal braces of a cylindrical wind turbine tower provided in accordance with one embodiment of the present application.

[0035] Figure 2 A structural diagram of columns and diagonal braces of a cylindrical wind turbine tower provided in accordance with another embodiment of the present application.

[0036] Figure 3 A structural diagram of a column connection head of a cylindrical wind turbine tower provided in accordance with one embodiment of the present application.

[0037] Figure 4 A structural diagram of the lower grid shell columns of a cylindrical wind turbine tower provided in an embodiment of the present application.

[0038] Figure 5 A structural diagram of a column connection head of a cylindrical wind turbine tower provided in accordance with another embodiment of the present application.

[0039] Component number description

[0040] 1 External thread stud

[0041] 2 Casing

[0042] 3 Stud reinforced plate

[0043] 4-Post Connector Housing

[0044] 5 Diagonal brace connecting plate

[0045] 6 Connection plate stiffener

[0046] 7 Bolt holes

[0047] 8 Stud Hollow

[0048] 10 Upper shell column

[0049] 20 Lower lattice shell column

[0050] 21 Second internal threaded casing

[0051] 22 Second internal threaded casing reinforced plate

[0052] 23 Lower grid shell column shell

[0053] 30 columns

[0054] 40 Oblique Bar DETAILED DESCRIPTION

[0055] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0056] It should be noted that the illustrations provided in the following embodiments are only used to illustrate the basic concept of the present invention in a schematic manner, and thus the illustrations only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0057] Terms such as first or second can be used to describe various components, but these components are not limited by the above terms. The above terms are used to distinguish one component from another component, for example, without departing from the scope of the concept according to the present disclosure, a first component can be referred to as a second component, and similarly, a second component can be referred to as a first component.

[0058] In addition, "connected / coupled" means that one component is directly electrically coupled to another component or is indirectly electrically coupled through another component. The singular form may include the plural form unless explicitly stated in the sentence. In addition, "include / comprise" or "includes / comprises" used in this specification indicates that one or more components, steps, operations, and elements exist or have been added. The specific structural or functional descriptions of the examples of the implementation of the concepts disclosed in this specification are only illustrated to describe the examples of the implementation of the concepts, and the examples of the implementation of the concepts can be implemented in various forms, but these descriptions are not limited to the examples of the implementation described in this specification.

[0059] According to the concept, various modifications and changes can be applied to the examples of the embodiments, so that the examples of the embodiments will be illustrated in the drawings and described in the specification. However, the examples of the embodiments according to the concept are not limited to the specific embodiments, but include all changes, equivalents or replacements included in the spirit and technical scope of the present disclosure.

[0060] It should be understood that when an element is described as being "coupled" or "connected" to another element, the element may be directly coupled or directly connected to the other element, or may be coupled or connected to the other element through a third element. Conversely, it should be understood that when an element is referred to as being "directly coupled to" or "directly coupled to" another element, no other element is placed between them. Other expressions describing the relationship between components (i.e., "between" and "directly between" or "adjacent to" and "directly adjacent to") need to be interpreted in the same manner.

[0061] The terms used in this specification are only used to describe specific examples of the embodiments and are not intended to limit the present disclosure. If there is no clear opposite meaning in the context, the singular form may include the plural form. In this specification, it should be understood that the term "including" or "having" indicates the presence of the features, quantities, steps, operations, components, parts or combinations thereof described in the specification, but the possibility of the presence or addition of one or more other features, quantities, steps, operations, components, parts or combinations thereof cannot be precluded.

[0062] If there is no contrary definition, all terms (including technical terms or scientific terms) used herein have the same meaning as those generally understood by ordinary technicians in the field. If the terms defined in the commonly used dictionary are not clearly defined in this specification, they should be interpreted as having the same meaning as in the context of the relevant technology, and not interpreted as ideal or overly formal meanings.

[0063] Descriptions of well-known components and processing techniques may be omitted so as not to unnecessarily obscure the embodiments of the disclosure.

[0064] Throughout the specification, the same reference numerals refer to the same elements. Thus, even if a reference numeral is not mentioned or described with reference to one figure, it may be mentioned or described with reference to another figure. Furthermore, even if a reference numeral is not shown in one figure, it may be mentioned or described with reference to another figure.

[0065] In addition, the logic level of the signal may be different or opposite to the described logic level. For example, a signal described as having a logic "high" level may alternatively have a logic "low" level, and a signal described as having a logic "low" level may alternatively have a logic "high" level.

[0066] The following will describe the various embodiments of the present disclosure in detail with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that in the various embodiments of the present disclosure, many technical details are provided in order to enable the reader to better understand the present disclosure. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in the present disclosure can be implemented.

[0067] The cylindrical lattice shell tower is suitable for wind turbine towers above 120m. The lower part of the tower uses a triangular columnar lattice shell structure composed of straight columns and diagonal webs. The development of connection nodes suitable for cylindrical lattice shell wind turbine tower structures has become a key technology for the rapid assembly of wind turbine towers. Due to the stress characteristics of wind turbine towers, this puts forward better requirements for the stress performance, fatigue performance, and seismic performance of the connection nodes. In addition, wind turbine towers involve high-altitude installation, which also puts forward requirements for the installation efficiency of structural nodes. Therefore, it is necessary to develop a node form with excellent stress performance, fatigue performance, seismic performance, and installation efficiency. The column connector of the cylindrical wind turbine tower can reduce the cost and increase the efficiency of wind turbine tower construction.

[0068] See also Figure 3 , Figure 4 , Figure 5 , Figure 3 A structural diagram of a column connection head of a cylindrical wind turbine tower provided in accordance with one embodiment of the present application. Figure 4 A structural diagram of the lower grid shell columns of a cylindrical wind turbine tower provided in an embodiment of the present application. Figure 5 A structural diagram of a column connector of a cylindrical wind turbine tower provided for another embodiment of the present application. The present invention provides a column connector, comprising an external threaded stud 1, a sleeve 2, a plurality of stud reinforcement plates 3, a column connector shell 4, and an oblique web connecting plate 5. External threaded studs 1 are provided at both ends of the sleeve 2; a plurality of stud reinforcement plates 3 are evenly distributed on the sleeve 2; the column connector shell 4 is sleeved on the outside of the plurality of stud reinforcement plates 3; and the oblique web connecting plate 5 is fixed to the outside of the column connector shell 4.

[0069] In one embodiment of the present invention, a column connector of the present invention comprises an externally threaded stud 1, a sleeve 2, a plurality of stud stiffening plates 3, a column connector housing 4, and an oblique web connecting plate 5, wherein the externally threaded stud 1 is connected to the sleeve 2 via the stud stiffening plate 3 by welding, the stud stiffening plate 3 is arranged in an annular direction, the oblique web connecting plate 5 is connected to the sleeve 2 by welding, and the threads at both ends of the externally threaded stud 1 are reverse threads.

[0070] Specifically, a column connector of a cylindrical wind turbine tower according to the present invention further includes a connecting plate stiffening plate 6 , which is fixed between the column connector shell 4 and the diagonal web connecting plate 5 .

[0071] Specifically, the diagonal web connecting plate 5 is provided with bolt holes 7 .

[0072] Specifically, the upper end of the external threaded stud 1 is sleeved with an upper net shell column 10, and the lower end of the external threaded stud 1 is sleeved with a lower net shell column 20.

[0073] Specifically, the upper shell column 10 includes a first internally threaded sleeve, a plurality of first internally threaded sleeve reinforced plates, and an upper shell column outer shell. The first internally threaded sleeve is sleeved on the upper end of the externally threaded stud 1; the plurality of the first internally threaded sleeve reinforced plates are evenly distributed on the outside of the first internally threaded sleeve; the upper shell column outer shell is sleeved on the outside of the plurality of the first internally threaded sleeve reinforced plates.

[0074] Specifically, the lower grid shell column 20 includes a second internally threaded sleeve 21, a plurality of second internally threaded sleeve stiffening plates 22, and a lower grid shell column outer shell 23. The second internally threaded sleeve 21 is sleeved on the lower end of the externally threaded stud 1; the plurality of second internally threaded sleeve stiffening plates 22 are evenly distributed on the outside of the second internally threaded sleeve 21; the lower grid shell column outer shell 23 is sleeved on the outside of the plurality of second internally threaded sleeve stiffening plates 22.

[0075] Specifically, there is a reverse thread between the upper end of the external thread stud 1 and the lower end of the external thread stud 1 .

[0076] In one embodiment of the present invention, the upper grid shell column 10 and the lower grid shell column 20 are connected by an external threaded stud 1, wherein the starting points of the external threaded stud 1 and the first internal threaded sleeve and the second internal threaded sleeve 21 should be at the same position to ensure that the diagonal web rod connecting plate 5 is located in the diagonal web rod plane at the end.

[0077] See also Figure 1 , Figure 2 , Figure 1 A structural diagram of the columns and diagonal braces of a cylindrical wind turbine tower provided in accordance with one embodiment of the present application. Figure 2 A structural diagram of a column and diagonal brace of a cylindrical wind turbine tower provided for another embodiment of the present application. The present invention also provides a cylindrical wind turbine tower, including the above-mentioned column connector, the cylindrical wind turbine tower includes a wind turbine blade, a generator set, a column 30, and a diagonal brace 40, the wind turbine blade is fixed on the bearing of the generator set; the generator set is fixed to the top of the tower by bolts; the tower includes a column 30 and a diagonal brace 40; two of the columns 30 are fixedly connected by the column connector; the diagonal brace 40 and the column 30 are fixedly connected by the column connector.

[0078] Specifically, the structures of the two columns 30 are the same as those of the upper grid shell column 10 and the lower grid shell column 20 .

[0079] Specifically, the column 30 is made of steel structure or steel tube concrete structure, and the diagonal web member 40 is made of steel structure or steel tube concrete structure.

[0080] In summary, the column connector of the present invention includes an external threaded stud, a sleeve, a stud stiffening plate, a column connector shell, and a diagonal web connecting plate. The present invention has the characteristics of excellent stress performance, good fatigue performance, excellent seismic performance, and excellent installation efficiency. The column connector of the present invention serves the purpose of reducing the cost and increasing the efficiency of wind turbine tower construction costs.

[0081] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A column connector, characterized in that: include: A sleeve (2) having external threaded studs (1) at both ends thereof; A plurality of stud reinforcement plates (3) uniformly distributed on the sleeve (2); A column connector shell (4) which is sleeved on the outer sides of the plurality of stud reinforcement plates (3); A diagonal web connecting plate (5) is fixed to the outer side of the column connecting head shell (4).

2. A column connector according to claim 1, characterized in that: Also includes: A connecting plate stiffening plate (6) is fixed between the column connecting head shell (4) and the diagonal web rod connecting plate (5).

3. The column connector according to claim 1, characterized in that: The diagonal web rod connecting plate (5) is provided with bolt holes (7).

4. The column connector according to claim 1, characterized in that: The upper end of the external threaded stud (1) is sleeved with an upper net shell column (10), and the lower end of the external threaded stud (1) is sleeved with a lower net shell column (20).

5. A column connector according to claim 4, characterized in that: The upper shell column (10) comprises: A first internally threaded sleeve, which is sleeved on the upper end of the externally threaded stud (1); A plurality of first internally threaded casing reinforcement plates, wherein the plurality of first internally threaded casing reinforcement plates are evenly distributed on the outer side of the first internally threaded casing; The upper shell column outer shell is sleeved on the outer sides of the plurality of the first internally threaded sleeve stiffening plates.

6. A column connector according to claim 5, characterized in that: The lower grid shell column (20) comprises: A second internally threaded sleeve (21), which is sleeved on the lower end of the externally threaded stud (1); A plurality of second internally threaded sleeve reinforcement plates (22), wherein the plurality of second internally threaded sleeve reinforcement plates (22) are evenly distributed on the outside of the second internally threaded sleeve (21); The lower grid shell column outer shell (23) is sleeved on the outer sides of the plurality of the second internally threaded sleeve stiffening plates (22).

7. The column connector according to claim 6, characterized in that: There is a reverse thread between the upper end of the external thread stud (1) and the lower end of the external thread stud (1).

8. A cylindrical wind turbine tower, characterized in that: The column connector according to any one of claims 1 to 7, wherein the cylindrical wind turbine tower comprises: Fan blades, which are fixed on the bearings of the generator set; A generator set is fixed to the top of the tower by bolts; The tower comprises a column (30) and a diagonal brace (40); A column (30), wherein two of the columns (30) are fixedly connected via the column connector; The diagonal brace (40) is fixedly connected to the column (30) via the column connecting head.

9. The cylindrical wind turbine tower according to claim 8, characterized in that: The structures of the two columns (30) are the same as those of the upper grid shell column (10) and the lower grid shell column (20).

10. The cylindrical wind turbine tower according to claim 8, characterized in that: The upright column (30) is made of steel structure or steel tube concrete structure, and the diagonal web member (40) is made of steel structure or steel tube concrete structure.

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