Tower drum pipe joint assembly and tower drum

Abstract

The utility model provides a tower tube section assembly and a tower tube. The tower tube section assembly comprises a first concrete tube section and a plurality of pre-stressed anchor bolts, the first concrete tube section comprises a tube section body and a first flange part which are integrally connected, the first flange part is arranged at at least one axial end of the tube section body, and the first flange part is arranged on the inner circumferential surface of the tube section body; the first flange part is provided with a plurality of connecting holes used for allowing the prestressed anchor bolts to penetrate through, the connecting holes are distributed in the circumferential direction of the first concrete pipe joint at intervals, and the prestressed anchor bolts are used for connecting the first concrete pipe joint and other pipe joints adjacent to the first concrete pipe joint. The first concrete pipe joint of the tower barrel pipe joint assembly has small transverse size and self weight, so that the tower barrel applying the tower barrel pipe joint assembly has ideal second-order frequency, and potential safety hazards caused by resonance of the tower barrel pipe joint assembly and a wind turbine generator are avoided; and meanwhile, the safety and the stability of the tower drum in the mounting process can be improved through the connection mode of the pre-stressed anchor bolts.

Description

Technical Field

[0001] This utility model relates to the field of wind power, specifically to a tower tube section assembly and a tower. Background Technology

[0002] The tower of a wind turbine generator consists of multiple tower sections arranged in sequence along the vertical direction. In related technologies, prestressed anchor cables are sequentially inserted into the walls of the multiple tower sections or a continuous prestressed anchor cable is installed inside the tower outside the walls of the tower sections. Then, the anchor cables are tensioned to the required preload to fix the multiple tower sections.

[0003] However, the concrete tower pipe sections have thicker walls, larger diameters, and greater self-weight, which in turn makes the tower itself larger in size and weight. In particular, the upper part of the tower is larger in size and weight, resulting in an undesirable second-order frequency of the tower. This frequency can easily overlap with the rotational frequency of the wind turbine and cause resonance, thus creating safety hazards.

[0004] Meanwhile, since the prestressed anchor cables are tensioned after multiple tower sections are hoisted, auxiliary components are generally required between adjacent tower sections or adhesive is used for bonding during the hoisting of each tower section, thereby providing auxiliary connections between adjacent tower sections.

[0005] However, due to the low connection strength of existing auxiliary connection methods, the safety and stability of the tower during installation are poor. If situations such as high wind speed occur during the installation process, the tower may tilt or other installation hazards. Therefore, the installation environment of the tower is greatly limited, which is detrimental to the installation efficiency of the tower and the popularization of wind turbine generators. Utility Model Content

[0006] This utility model aims to at least partially solve one of the technical problems in the related art.

[0007] Therefore, embodiments of this utility model propose a tower tube section assembly and a tower using the tower tube section assembly.

[0008] The tower tube section assembly of this utility model embodiment includes:

[0009] The first concrete pipe section includes an integrally connected pipe section body and a first flange portion. The first flange portion is provided at least one axial end of the pipe section body and is located on the inner circumferential surface of the pipe section body. The first flange portion is provided with connection holes for inserting the prestressed anchor bolts. The connection holes are arranged at intervals along the circumference of the first concrete pipe section. The multiple prestressed anchor bolts are used to connect the first concrete pipe section and other adjacent pipe sections.

[0010] In this embodiment of the tower tube section assembly, the first concrete tube section has a first flange at at least one end along its axial direction. Multiple prestressed anchor bolts are then inserted through the first flange to connect the first concrete tube section to its adjacent tube sections. The first concrete tube section has a thinner wall thickness and a smaller diameter, particularly the tube section body itself. Simultaneously, the prestressed anchor bolts possess strong connection bearing capacity. The prestressed anchor bolts are installed by passing through the first flange, requiring minimal installation space, further contributing to the smaller diameter of the first concrete tube section. This results in a smaller lateral dimension and self-weight for the first concrete tube section. Consequently, the tower tube section assembly of this embodiment has a smaller lateral dimension and self-weight, achieving an ideal second-order frequency and avoiding safety hazards caused by resonance with the wind turbine.

[0011] Meanwhile, since the first concrete pipe section is connected to other adjacent pipe sections through multiple prestressed anchor bolts, the prestressed anchor bolts can be tensioned after the first concrete pipe section and other pipe sections are hoisted into place to fix the first concrete pipe section and other pipe sections, thereby improving the safety and stability of the tower during the installation process.

[0012] In addition, the small lateral dimensions and weight of the first concrete pipe section make it easy to transport and hoist.

[0013] In some embodiments, the prestressed anchor bolts include first prestressed anchor bolts, and the other pipe sections include the first concrete pipe sections. The first prestressed anchor bolts are used to pass through and connect adjacent first flange portions, and the adjacent first flange portions are respectively located in the corresponding first concrete pipe sections of adjacent first concrete pipe sections, so that a plurality of first prestressed anchor bolts connect adjacent first concrete pipe sections.

[0014] In some embodiments, the prestressed anchor bolt includes a second prestressed anchor bolt, and the other pipe section includes a second concrete pipe section. One end of the second prestressed anchor bolt is used to pass through the first flange portion, and the other end of the second prestressed anchor bolt is used to insert or embed in the second concrete pipe section, so that a plurality of second prestressed anchor bolts connect the first concrete pipe section and the adjacent second concrete pipe section.

[0015] In some embodiments, the pipe section body is provided with the first flange portion at both axial ends, and the first flange portion at both ends is used to provide a plurality of the first prestressed anchor bolts; or, the first flange portion at one end is used to provide a plurality of the first prestressed anchor bolts, and the first flange portion at the other end is used to provide a plurality of the second prestressed anchor bolts.

[0016] In some embodiments, at least a portion of the reinforcing bars in the first concrete pipe section are prestressed tendons.

[0017] In some embodiments, the cross-sectional area of ​​the first flange is constant along the axial direction of the first concrete pipe section; and / or

[0018] On the longitudinal section of the first concrete pipe section, the cross-sectional line of the circumferential end face of the first flange is parallel to the central axis of the first concrete pipe section.

[0019] In some embodiments, the thickness of the first flange portion is 1.1 to 1.5 times the thickness of the pipe section body.

[0020] In some embodiments, the first flange portion extends 0.8m to 1.2m along the axial direction of the first concrete pipe section.

[0021] In some embodiments, the ratio of the axial extension length of the first flange portion along the first concrete pipe section to the axial length of the first concrete pipe section is 1:17 to 1:21.

[0022] In some embodiments, the tower pipe section assembly further includes a first adhesive layer, wherein the outer end face of the first flange portion along the axial direction of the first concrete pipe section is flush with the axial end face of the pipe section body, and the first adhesive layer is disposed on the outer end face of the first flange portion and the axial end face of the pipe section body.

[0023] In some embodiments, the prestressed anchor bolts include third prestressed anchor bolts, the other pipe sections include transfer pipe sections, and the first concrete pipe section further includes a second flange portion integrally connected to the pipe section body. The first flange portion is provided at one axial end of the pipe section body, and the first flange portion is used to install a plurality of first prestressed anchor bolts. The second flange portion is provided at the other axial end of the pipe section body, and the second flange portion is provided on the inner circumferential surface of the pipe section body. One end of a plurality of third prestressed anchor bolts is inserted or embedded in the second flange portion. The plurality of third prestressed anchor bolts are arranged at intervals along the circumference of the first concrete pipe section, and the other end of the plurality of third prestressed anchor bolts is used to connect to the transfer pipe section.

[0024] In some embodiments, the second flange portion includes a first segment and a second segment arranged sequentially along the axial direction of the first concrete pipe section;

[0025] The cross-sectional area of ​​the first segment is constant along the axial direction of the first concrete pipe section; the cross-sectional area of ​​the second segment decreases from the outside to the inside along the axial direction of the first concrete pipe section; the maximum cross-sectional area of ​​the second segment is equal to the cross-sectional area of ​​the first segment; and the minimum cross-sectional area of ​​the second segment is zero; and / or

[0026] On the longitudinal section of the first concrete pipe section, the section line of the circumferential end face of the first segment is parallel to the central axis of the first concrete pipe section, and the circumferential end face of the second segment extends radially from the circumferential end face of the first segment to the inner circumferential surface of the pipe section body, and is inclined from the outside to the inside along the axial direction of the first concrete pipe section.

[0027] In some embodiments, the length of the first segment extending along the axial direction of the first concrete pipe section is 0.8 to 1.2 times the length of the second segment extending along the axial direction of the first concrete pipe section.

[0028] In some embodiments, the tower pipe section assembly further includes a second adhesive layer, wherein the outer end face of the second flange portion along the axial direction of the first concrete pipe section is flush with the axial end face of the pipe section body, and the second adhesive layer is disposed on the outer end face of the second flange portion and the axial end face of the pipe section body.

[0029] The tower of this utility model embodiment includes: the tower tube section assembly described in any of the above embodiments.

[0030] The tower of this embodiment, due to the use of the tower tube section assembly of this embodiment, has a smaller size and weight, especially the upper part of the tower, which has a smaller size and weight, enabling the tower to have an ideal second-order frequency, thereby avoiding safety hazards caused by resonance with the wind turbine. At the same time, the tower has strong safety and stability during installation, facilitating tower installation and construction, and thus has higher installation efficiency and environmental adaptability.

[0031] In some embodiments, the tower further includes: a tower foundation, a second concrete pipe section, and a transfer pipe section. The second concrete pipe section is disposed on the tower foundation. There are multiple tower pipe section assemblies. The first concrete pipe sections of the multiple tower pipe section assemblies are sequentially disposed on the second concrete pipe section in a vertical direction. The transfer pipe section is disposed on the topmost first concrete pipe section. The second concrete pipe section and the bottommost first concrete pipe section, adjacent first concrete pipe sections, the topmost first concrete pipe section, and the transfer pipe section are respectively connected by multiple prestressed anchor bolts. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the tower tube according to an embodiment of the present utility model;

[0033] Figure 2 yes Figure 1 An enlarged schematic diagram of the topmost tower tube section assembly;

[0034] Figure 3 yes Figure 1Enlarged schematic diagram of the tower tube section assembly excluding the topmost and bottommost tower tube section assemblies;

[0035] Figure 4 yes Figure 1 A partially enlarged schematic diagram of the connection between the topmost tower pipe section assembly and the transfer pipe section;

[0036] Figure 5 yes Figure 1 A partially enlarged schematic diagram of the connection point between adjacent tower tube sections;

[0037] Figure 6 yes Figure 1 A partially enlarged schematic diagram of the connection between the bottommost tower section assembly and the second concrete section;

[0038] Figure 7 This is a top view of the pipe section body of the first concrete pipe section according to an embodiment of the present utility model;

[0039] Figure 8 This is a cross-sectional schematic diagram of the pipe section body of the first concrete pipe section according to an embodiment of the present invention.

[0040] Figure label:

[0041] 1. First concrete pipe section; 11. First flange; 111. Connecting hole; 12. Second flange; 121. First section; 122. Second section; 13. Pipe section body; 14. Prestressed tendons (pre-tensioned method);

[0042] 2. Prestressed anchor bolt; 21. First prestressed anchor bolt; 22. Second prestressed anchor bolt; 23. Third prestressed anchor bolt;

[0043] 3. Second concrete pipe section;

[0044] 4. Transfer of pipe joints;

[0045] 5. Tower foundation;

[0046] 6. Host computer. Detailed Implementation

[0047] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0048] The following is for reference. Figures 1-8 This invention describes a tower tube section assembly and a tower according to embodiments of the present invention.

[0049] like Figures 1-8As shown, the tower pipe section assembly of this utility model embodiment includes a first concrete pipe section 1 and a plurality of prestressed anchor bolts 2.

[0050] The first concrete pipe section 1 includes an integrally connected pipe section body 13 and a first flange portion 11. The first flange portion 11 is provided at least one end of the pipe section body 13 in the axial direction, and the first flange portion 11 is provided on the inner circumferential surface of the pipe section body 13.

[0051] like Figure 2 and Figure 3 As shown, the pipe section body 13 is preferably, but not limited to, arranged around the vertical direction and extending in the vertical direction. The axial direction of the pipe section body 13 is consistent with the axial direction of the first concrete pipe section 1, both being vertical. The radial direction of the pipe section body 13 is consistent with the radial direction of the first concrete pipe section 1, both being horizontal. The circumferential direction of the pipe section body 13 is consistent with the circumferential direction of the first concrete pipe section 1, both being directions around the vertical direction.

[0052] The wall thickness of the pipe section body 13 is preferably, but not limited to, constant in the vertical direction. The diameter (including the outer diameter and the inner diameter) of the pipe section body 13 can be set to be constant in the vertical direction, or it can be set to decrease from bottom to top, preferably constant in the vertical direction. At least one of the top and bottom ends of the pipe section body 13 is provided with a first flange portion 11. The first flange portion 11 is provided on the inner circumferential surface of the pipe section body 13. In other words, the first flange portion 11 protrudes from the inner circumferential surface of the pipe section body 13 toward the centerline axis of the first concrete pipe section 1. The first flange portion 11 is preferably, but not limited to, annular in the vertical direction.

[0053] The first concrete pipe section 1 is preferably, but not limited to, made of ultra-high performance concrete (UHPC) material, to have a thinner wall thickness and a smaller diameter, particularly to make the wall thickness of the pipe section body 13 thinner.

[0054] The first flange 11 is provided with connection holes 111 for inserting prestressed anchor bolts 2. There are multiple connection holes 111 arranged at intervals along the circumference of the first concrete pipe section 1. Multiple prestressed anchor bolts 2 are used to connect the first concrete pipe section 1 and other adjacent pipe sections.

[0055] like Figure 2 , Figure 3 and Figure 7 As shown, the first flange portion 11 is provided with a connecting hole 111 that penetrates the first flange portion 11 in a vertical direction. The connecting hole 111 is provided in multiple ways, and the multiple connecting holes 111 are arranged at intervals along the circumference of the first flange portion 11. In other words, the multiple connecting holes 111 are arranged at intervals around the vertical direction, preferably but not limited to being arranged at equal intervals.

[0056] The connecting hole 111 is used to insert prestressed anchor bolts 2. Multiple prestressed anchor bolts 2 inserted on the first flange 11 extend from the first flange 11 to connect the first concrete pipe section 1 and other adjacent pipe sections. It should be noted that the multiple prestressed anchor bolts 2 play a full or main connection role on the first concrete pipe section 1 and other adjacent pipe sections, rather than an auxiliary connection role.

[0057] It should be noted that the tower tube section assembly includes a first concrete tube section 1 and multiple prestressed anchor bolts 2. However, the prestressed anchor bolts 2 are not limited to always being inserted through the connection hole 111. Before the tower tube section assembly is constructed to form the tower, such as during the sale or transportation process, the multiple prestressed anchor bolts 2 can be inserted into the corresponding connection hole 111 respectively, or they can be separated from the first concrete tube section 1. It is preferred that they be separated so that the tower tube section assembly has a smaller space occupation in the unconstructed state such as during the sale or transportation process, which facilitates movement and placement.

[0058] It should be noted that the number of connection holes 111 on the first flange 11 and the number of prestressed anchor bolts 2 used to pass through the first flange 11 are not necessarily arranged in a one-to-one correspondence. When the first concrete pipe section 1 is connected to other adjacent pipe sections, the multiple connection holes 111 on the first flange 11 of the first concrete pipe section 1 that are adjacent to other pipe sections can all be used to pass through prestressed anchor bolts 2, or some connection holes 111 can be used to pass through prestressed anchor bolts 2.

[0059] It should be noted that in embodiments where the top and bottom ends of the pipe section body 13 are provided with first flange portions 11, the multiple prestressed anchor bolts 2 included in the tower pipe section assembly can all be used to pass through one of the first flange portions 11, or a portion of the prestressed anchor bolts 2 can be used to pass through the first flange portion 11 at the top end, and another portion of the prestressed anchor bolts 2 can be used to pass through the first flange portion 11 at the bottom end.

[0060] In this embodiment of the tower tube section assembly, the first concrete tube section has a first flange at at least one end along its axial direction. Multiple prestressed anchor bolts are then inserted through the first flange to connect the first concrete tube section to its adjacent tube sections. The first concrete tube section has a thinner wall thickness and a smaller diameter, particularly the tube section body itself. Simultaneously, the prestressed anchor bolts possess strong connection bearing capacity. The prestressed anchor bolts are installed by passing through the first flange, requiring minimal installation space, further contributing to the smaller diameter of the first concrete tube section. This results in a smaller lateral dimension and self-weight for the first concrete tube section. Consequently, the tower tube section assembly of this embodiment has a smaller lateral dimension and self-weight, achieving an ideal second-order frequency and avoiding safety hazards caused by resonance with the wind turbine.

[0061] Meanwhile, since the first concrete pipe section is connected to other adjacent pipe sections through multiple prestressed anchor bolts, the prestressed anchor bolts can be tensioned after the first concrete pipe section and other pipe sections are hoisted into place to fix the first concrete pipe section and other pipe sections, thereby improving the safety and stability of the tower during the installation process.

[0062] In addition, the small lateral dimensions and weight of the first concrete pipe section make it easy to transport and hoist.

[0063] In some embodiments, the prestressed anchor 2 includes a first prestressed anchor 21, and the other pipe sections include a first concrete pipe section 1. The first prestressed anchor 21 is used to pass through and connect adjacent first flange portions 11, and the adjacent first flange portions 11 are respectively located in the corresponding first concrete pipe sections 1 of adjacent first concrete pipe sections 1, so that the multiple first prestressed anchors 21 connect the adjacent first concrete pipe sections 1.

[0064] like Figure 1 As shown, the tower tube section assembly can be connected to another tower tube section assembly adjacent to it. In other words, the first concrete tube section 1 of one tower tube section assembly is connected to another adjacent tube section of another tower tube section assembly.

[0065] like Figure 3 As shown, the prestressed anchor bolt 2 includes a first prestressed anchor bolt 21. The top and bottom ends of the first concrete pipe section 1 are provided with a first flange portion 11. Multiple first prestressed anchor bolts 21 are used to pass through the first flange portion 11 at the top end and extend upward from the first flange portion 11 at the top end for connecting to another first concrete pipe section 1.

[0066] like Figure 5As shown, a plurality of first prestressed anchor bolts 21 are inserted through the top first flange portion 11 of the lower first concrete pipe section 1, with each first prestressed anchor bolt 21 extending upward. Since the bottom first flange portion 11 of the upper first concrete pipe section 1 is not inserted with the prestressed anchor bolts 2 included in the tower pipe section assembly to which the first concrete pipe section 1 is located, the first prestressed anchor bolts 21 on the top first flange portion 11 of the lower first concrete pipe section 1 can be inserted into the corresponding connecting holes 111 of the bottom first flange portion 11 of the upper first concrete pipe section 1. That is, the lower end of the first prestressed anchor bolt 21 is inserted into the top first flange portion 11 of the lower first concrete pipe section 1, and the upper end of the first prestressed anchor bolt 21 is inserted into the bottom first flange portion 11 of the upper first concrete pipe section 1, so as to connect the top first flange portion 11 of the lower first concrete pipe section 1 and the bottom first flange portion 11 of the upper first concrete pipe section 1, thereby connecting the lower first concrete pipe section 1 and the upper first concrete pipe section 1. In other words, multiple first prestressed anchors 21 of the lower tower tube section assembly connect the lower tower tube section assembly and the upper tower tube section assembly.

[0067] Specifically, the first prestressed anchor bolt 21 includes a first screw and a first nut. The first screw has a first nut at both ends along its axial direction. The upper end of the first screw passes through the bottom first flange portion 11 of the upper first concrete pipe section 1, and the first nut at the upper end abuts against the top surface of the bottom first flange portion 11 of the upper first concrete pipe section 1. The lower end of the first screw passes through the top first flange portion 11 of the lower first concrete pipe section 1, and the first nut at the lower end abuts against the bottom surface of the top first flange portion 11 of the lower first concrete pipe section 1.

[0068] In some embodiments, the prestressed anchor 2 includes a second prestressed anchor 22, and other pipe sections include a second concrete pipe section 3. One end of the second prestressed anchor 22 is used to pass through the first flange portion 11, and the other end of the second prestressed anchor 22 is used to insert or embed in the second concrete pipe section 3, so that a plurality of second prestressed anchors 22 connect the first concrete pipe section 1 and the adjacent second concrete pipe section 3.

[0069] like Figure 1 As shown, the lowest tower tube section assembly is connected to the adjacent second concrete tube section 3. In other words, the first concrete tube section 1 of the lowest tower tube section assembly is connected to one of the adjacent other tube sections, namely the second concrete tube section 3.

[0070] like Figure 6 As shown, the prestressed anchor 2 includes a second prestressed anchor 22. A plurality of second prestressed anchors 22 are used to pass through the bottom first flange portion 11 of the first concrete pipe section 1 and extend downward from the bottom first flange portion 11 for connecting the second concrete pipe section 3.

[0071] The upper end of the second prestressed anchor 22 passes through the bottom first flange portion 11, and the lower end of the second prestressed anchor 22 is inserted into or embedded in the second concrete pipe section 3. Specifically, the second prestressed anchor 22 includes a second thread and a second nut. The second nut is located at the top of the second thread and is used to abut against the top surface of the first flange portion 11. When the lower end of the second prestressed anchor 22 is inserted into the second concrete pipe section 3, the second concrete pipe section 3 has a first pre-embedded nut cast inside it and a first insertion hole corresponding to the first pre-embedded nut. The lower end of the second prestressed anchor 22 is inserted into the corresponding first insertion hole and threadedly connected to the first pre-embedded nut. When the lower end of the second prestressed anchor 22 is embedded in the second concrete pipe section 3, the lower end of the second prestressed anchor 22 is cast into the second concrete pipe section 3 and threadedly connected to the first pre-embedded nut cast into the second concrete pipe section 3. Therefore, during the connection process, it is necessary to insert the tops of multiple second prestressed anchors 22 into the first flange portion 11. Preferably, the lower end of the second prestressed anchor 22 is pre-embedded in the second concrete pipe section 3 during the production of the second concrete pipe section 3 to facilitate prefabrication.

[0072] In some embodiments, the pipe section body 13 is provided with a first flange portion 11 at both axial ends. The first flange portion 11 at both ends is used to provide a plurality of first prestressed anchor bolts 21. Alternatively, the first flange portion 11 at one end is used to provide a plurality of first prestressed anchor bolts 21, and the first flange portion 11 at the other end is used to provide a plurality of second prestressed anchor bolts 22.

[0073] like Figures 1-7 As shown, Figure 1 Except for the topmost first concrete pipe section 1, the top and bottom ends of the pipe body 13 of the other first concrete pipe sections 1 are provided with first flange portions 11. Figure 1 Except for the two first concrete pipe sections 1 at the top and bottom, the two first flanges 11 of the other first concrete pipe sections 1 are used to install multiple first prestressed anchor bolts 21 to connect adjacent first concrete pipe sections 1, thereby connecting multiple first concrete pipe sections 1 sequentially in the vertical direction. Figure 1 The top first flange portion 11 of the bottommost first concrete pipe section 1 is used to install a plurality of first prestressed anchor bolts 21 to connect the plurality of adjacent first prestressed anchor bolts 21 above it, and the bottom first flange portion 11 of the bottommost first concrete pipe section 1 is used to install a plurality of second prestressed anchor bolts 22 to connect the adjacent second concrete pipe section 3 below it.

[0074] It is understood that the connection between the bottom first concrete pipe section 1 and the second concrete pipe section 3 is not limited to being connected by the second prestressed anchor bolt 22. In other embodiments, a prestressed anchor cable is inserted inside the wall of the second concrete pipe section 3, or a prestressed anchor cable is installed outside the wall of the second concrete pipe section 3, with the top end of the prestressed anchor cable anchored to the bottom end of the bottom first concrete pipe section 1, thereby connecting the bottom first concrete pipe section 1 and the second concrete pipe section 3 by the prestressed anchor cable.

[0075] In some embodiments, at least a portion of the reinforcing bars of the first concrete pipe section 1 are prestressed tendons 14.

[0076] like Figure 7 As shown, the first concrete pipe section 1 has a plurality of reinforcing bars cast within its wall. These reinforcing bars include vertical and circumferential reinforcing bars. The vertical reinforcing bars extend axially along the first concrete pipe section 1, and the circumferential reinforcing bars extend circumferentially along the first concrete pipe section 1. At least a portion of the vertical reinforcing bars are cast within the wall of the pipe section body 13 and are arranged at intervals along the circumference of the pipe section body 13, preferably but not limited to being equidistant. At least a portion of the vertical reinforcing bars within the wall of the pipe section body 13 are prestressed tendons 14, and preferably, all the vertical reinforcing bars within the wall of the pipe section body 13 are prestressed tendons 14.

[0077] The prestressed tendon 14 is a steel bar that is prestressed during the pouring of the first concrete pipe section 1. The prestressed tendon 14 gives the first concrete pipe section 1 strong crack resistance and load-bearing capacity, ensuring that the first concrete pipe section 1 still meets the required mechanical properties when connected to other adjacent pipe sections by prestressed anchor bolts 2. At the same time, the prestressed tendon 14 also allows the first concrete pipe section 1, especially the pipe section body 13, to have smaller lateral dimensions and self-weight.

[0078] In addition, the prestressed anchor bolts 2 work together with the pre-tensioned prestressed tendons 14 to further ensure the crack resistance and bearing capacity of the end of the first concrete pipe section 1 that is connected to other pipe sections, so as to ensure the stability of the first concrete pipe section 1 after connection and the safety and stability during the connection process.

[0079] In some embodiments, the cross-sectional area of ​​the first flange portion 11 is constant along the axial direction of the first concrete pipe section 1. And / or, in the longitudinal section of the first concrete pipe section 1, the section line of the circumferential end face of the first flange portion 11 is parallel to the central axis of the first concrete pipe section 1.

[0080] like Figure 2 and Figure 3 As shown, the cross-sectional area of ​​the first flange portion 11 is constant along the vertical direction; in other words, the thickness of the first flange portion 11 is constant along the vertical direction. In the longitudinal section of the first concrete pipe section 1, the cross-sectional shape of the first flange portion 11 is two rectangles facing each other.

[0081] On the longitudinal section of the first concrete pipe section 1, the cross-sectional line of the inner circumferential surface of the first flange portion 11 is parallel to the central axis of the first concrete pipe section 1. In other words, the cross-sectional line of the inner circumferential surface of the first flange portion 11 is a vertical straight line.

[0082] The shape of the first flange 11 ensures, on the one hand, that multiple prestressed anchor bolts 2 can be installed, and on the other hand, that the first flange 11 has the load-bearing capacity and strength.

[0083] In some embodiments, such as Figure 2 As shown, the thickness t1 of the first flange portion 11 is 1.1 to 1.5 times the thickness t of the pipe section body 13, preferably 1.1, 1.3, or 1.5 times, and more preferably 1.33 times. This ensures the load-bearing capacity and strength of both the pipe section body 13 and the first flange portion 11 while allowing both to have thinner walls, thereby resulting in a smaller lateral dimension and self-weight for the first concrete pipe section 1.

[0084] In some embodiments, such as Figure 2 As shown, the first flange portion 11 is along the axial direction of the first concrete pipe section 1 (e.g., Figure 2 The vertical extension length L1 shown is 0.8m to 1.2m, preferably 0.8m, 1.0m, or 1.2m, and more preferably 1.0m. This is to ensure the load-bearing capacity and strength of the first flange portion 11, while also ensuring the insertion length of the prestressed anchor bolt 2 within the first flange portion 11, so as to ensure a stable connection of the prestressed anchor bolt 2.

[0085] In some embodiments, such as Figure 2 As shown, the ratio of the axial extension length L1 of the first flange portion 11 along the axial direction of the first concrete pipe section 1 to the axial length L of the first concrete pipe section 1 is 1:17 to 1:21. In other words, the axial length L of the first concrete pipe section 1 is 17 to 21 times the axial length L1 of the first flange portion 11. Preferably, the ratio is 1:17, 1:19, or 1:21, and more preferably 1:19. This ensures the overall load-bearing capacity and strength of the first flange portion 11 and the first concrete pipe section 1, while also giving the first concrete pipe section 1 a higher axial dimension. On the one hand, this allows the tower to have fewer pipe sections at the same height, thus facilitating tower installation and construction; on the other hand, it allows the tower to have a higher height, resulting in stronger wind power generation and higher wind power generation efficiency.

[0086] In some embodiments of the present invention, the tower pipe section assembly further includes a first adhesive layer, wherein the outer end face of the first flange portion 11 along the axial direction of the first concrete pipe section 1 is flush with the axial end face of the pipe section body 13, and the first adhesive layer is disposed on the outer end face of the first flange portion 11 and the axial end face of the pipe section body 131.

[0087] like Figure 3 As shown, the first flange portion 11 has an outer end face and an inner end face that are arranged opposite each other in the vertical direction. The inner end face is closer to the center of the first concrete pipe section 1 along the axial direction of the first concrete pipe section 1 than the outer end face. Therefore, the top surface of the first flange portion 11 located at the top of the pipe section body 13 is the outer end face, and the bottom surface of the first flange portion 11 located at the bottom of the pipe section body 13 is the outer end face.

[0088] The top surface of the first flange portion 11 at the top is flush with the top surface of the pipe section body 13, and the bottom surface of the first flange portion 11 at the bottom is flush with the bottom surface of the pipe section body 13.

[0089] The outer end face of the first flange 11 is flush with the axial end face of the pipe section body 13, serving as a splicing surface and abutting against other pipe sections. This results in a larger splicing surface for the first concrete pipe section 1, thereby increasing the load-bearing capacity of the end of the first concrete pipe section 1 connected to other pipe sections and ensuring the stability of the first concrete pipe section 1 after connection, as well as the safety and stability during the connection process.

[0090] At least one of the top surface of the top flange portion 11 and the top surface of the pipe section body 13, and the bottom surface of the bottom flange portion 11 and the bottom surface of the pipe section body 13, is provided with a first adhesive layer. The material of the first adhesive layer is preferably, but not limited to, epoxy adhesive, and the 7-day compressive strength is not less than 80 MPa.

[0091] The first adhesive layer serves to seal and waterproof the first concrete pipe section 1 and the other pipe sections connected to it.

[0092] In some embodiments, the prestressed anchor 2 includes a third prestressed anchor 23, and other pipe sections include a transfer pipe section 4. The first concrete pipe section 1 also includes a second flange portion 12 integrally connected to the pipe section body 13. One axial end of the pipe section body 13 is provided with a first flange portion 11, and the first flange portion 11 is used to install a plurality of first prestressed anchors 21. The other axial end of the pipe section body 13 is provided with a second flange portion 12, and the second flange portion 12 is provided on the inner circumferential surface of the pipe section body 13. One end of a plurality of third prestressed anchors 23 is inserted or embedded in the second flange portion 12. The plurality of third prestressed anchors 23 are arranged at intervals along the circumference of the first concrete pipe section 1, and the other end of the plurality of third prestressed anchors 23 is used to connect to the transfer pipe section 4.

[0093] like Figure 1 and Figure 4As shown, the uppermost tower section assembly is connected to its adjacent transfer section 4. In other words, the first concrete section 1 of the uppermost tower section assembly is connected to one of the adjacent sections, namely the transfer section 4. The transfer section 4 serves as a transition section of the tower, with its top end used to house the main unit 6. The bottom end of the transfer section 4 has a bend extending into its inner cavity. The bend is preferably, but not limited to, an annular shape around the vertical direction, and its bottom surface abuts against the first concrete section 1 of the uppermost tower section assembly. The transfer section 4 is preferably, but not limited to, made of steel.

[0094] like Figure 2 As shown, the prestressed anchor 2 includes a third prestressed anchor 23. In the uppermost tower pipe section assembly, the first concrete pipe section 1 includes a pipe section body 13, a first flange portion 11, and a second flange portion 12.

[0095] The bottom end of the pipe section body 13 is provided with a first flange 11. The first flange 11 is used to pass through a plurality of first prestressed anchor bolts 21 on the top first flange 11 of another tower pipe section assembly below the pipe section assembly, so as to connect the first concrete pipe section 1 of the tower pipe section assembly to the first concrete pipe section 1 of the other tower pipe section assembly below the pipe section assembly through the plurality of first prestressed anchor bolts 21.

[0096] The top end of the pipe section body 13 is provided with a second flange portion 12, which is located on the inner circumferential surface of the pipe section body 13. In other words, the second flange portion 12 protrudes from the inner circumferential surface of the pipe section body 13 toward the centerline axis of the first concrete pipe section 1. The second flange portion 12 is preferably, but not limited to, annular around the vertical direction.

[0097] like Figure 4 As shown, the lower end of the third prestressed anchor 23 is inserted or embedded in the second flange 12, and the upper end of the third prestressed anchor 23 extends upward from the second flange 12 for passing through the bend of the transfer pipe section 4. There are multiple third prestressed anchors 23, which are arranged at intervals in the vertical direction to connect the first concrete pipe section 1 to the transfer pipe section 4 through multiple third prestressed anchors 23.

[0098] Specifically, the third prestressed anchor 23 includes a third thread and a third nut. The third nut is located at the top of the third thread and abuts against the top surface of the bend in the transfer pipe section 4. When the lower end of the third prestressed anchor 23 is inserted into the second flange 12, the second flange 12 has a second embedded nut cast inside it and a second insertion hole corresponding to the second embedded nut. The lower end of the third prestressed anchor 23 is inserted into the corresponding second insertion hole and threadedly connected to the second embedded nut. When the lower end of the third prestressed anchor 23 is embedded in the second flange 12, the lower end of the third prestressed anchor 23 is cast inside the second flange 12 and threadedly connected to the second embedded nut cast inside the second flange 12. Therefore, during the connection process, it is necessary to insert the tops of multiple third prestressed anchors 23 into the transfer pipe section 4. Preferably, the lower end of the third prestressed anchor 23 is pre-embedded in the second flange 12 during the production of the first concrete pipe section 1 to facilitate prefabrication.

[0099] In some embodiments, the second flange portion 12 includes a first segment 121 and a second segment 122 sequentially arranged along the axial direction of the first concrete pipe section 1. The cross-sectional area of ​​the first segment 121 is constant along the axial direction of the first concrete pipe section 1, and the cross-sectional area of ​​the second segment 122 decreases from the outside to the inside along the axial direction of the first concrete pipe section 1. The maximum cross-sectional area of ​​the second segment 122 is equal to the cross-sectional area of ​​the first segment 121, and the minimum cross-sectional area of ​​the second segment 122 is zero. And / or, in the longitudinal section of the first concrete pipe section 1, the section line of the circumferential end face of the first segment 121 is parallel to the central axis of the first concrete pipe section 1, and the circumferential end face of the second segment 122 extends radially from the circumferential end face of the first segment 121 to the inner circumferential surface of the pipe section body 13, and is inclined from the outside to the inside along the axial direction of the first concrete pipe section 1.

[0100] like Figure 2 As shown, the second flange portion 12 includes a first segment 121 and a second segment 122 arranged sequentially in the vertical direction. Along the axial direction of the first concrete pipe section 1, the second segment 122 is closer to the center of the first concrete pipe section 1 than the first segment 121.

[0101] The cross-sectional area of ​​the first segment 121 is constant along the vertical direction; in other words, the thickness of the first segment 121 is constant along the vertical direction. On the longitudinal section of the first concrete pipe section 1, the cross-sectional shape of the first segment 121 is two rectangles facing each other.

[0102] The cross-sectional area of ​​the second segment 122 is from the outside to the inside along the axial direction of the first concrete pipe section 1 (e.g., Figure 2The thickness of the first segment 121 decreases from top to bottom along the axial direction of the first concrete pipe section 1. The top of the second segment 122 has the largest cross-sectional area, which is equal to the cross-sectional area of ​​the first segment 121, while the bottom of the second segment 122 has the smallest cross-sectional area, which is zero. In the longitudinal section of the first concrete pipe section 1, the cross-sectional shape of the second segment 122 is two right-angled triangles facing each other.

[0103] On the longitudinal section of the first concrete pipe section 1, the cross-sectional line of the inner circumferential surface of the first segment 121 is parallel to the central axis of the first concrete pipe section 1. In other words, the cross-sectional line of the inner circumferential surface of the first segment 121 is a vertical straight line.

[0104] On the longitudinal section of the first concrete pipe section 1, the cross-sectional line of the inner circumferential surface of the second segment 122 runs radially from the inside to the outside of the first concrete pipe section 1 (e.g., ...). Figure 2 As shown, it extends horizontally away from the central axis of the first concrete pipe section 1, and along the axial direction of the first concrete pipe section 1 from the outside to the inside (as shown). Figure 2 The second segment 122 shown is inclined from top to bottom, and the cross-sectional line of the inner circumferential surface of the second segment 122 is connected between the inner circumferential surface of the first segment 121 and the inner circumferential surface of the pipe section body 13.

[0105] Preferably, 90% or more of the portion of the third prestressed anchor 23 in the second flange portion 12 is located within the first segment 121, more preferably 95% or more.

[0106] The shape of the second flange 12 ensures, on the one hand, that multiple third prestressed anchor bolts 23 can be installed, and on the other hand, that the bearing capacity and strength of the second flange 12 are ensured.

[0107] In some embodiments, such as Figure 2 As shown, the axial extension length L21 of the first segment 121 along the first concrete pipe section 1 is 0.8 to 1.2 times the axial extension length L22 of the second segment 122 along the first concrete pipe section 1, preferably 0.8, 1.0, or 1.2 times, and more preferably 1.0 times. This ensures the load-bearing capacity and strength of the second flange portion 12, while also ensuring the length of the third prestressed anchor bolt 23 within the second flange portion 12, thus ensuring a stable connection of the third prestressed anchor bolt 23.

[0108] In some embodiments of the present invention, the tower pipe section assembly further includes a second adhesive layer, wherein the outer end face of the second flange portion 12 along the axial direction of the first concrete pipe section 1 is flush with the axial end face of the pipe section body 13, and the second adhesive layer is disposed on the outer end face of the second flange portion 12 and the axial end face of the pipe section body 13.

[0109] like Figure 2As shown, the top surface of the second flange 12 is the outer end face of the second flange 12. The outer end face of the second flange 12 is flush with the top surface of the first concrete pipe section 1, so as to serve as a splicing surface and abut against the transfer pipe section 4. This gives the splicing surface of the first concrete pipe section 1 a larger area, thereby improving the load-bearing capacity of the end of the first concrete pipe section 1 connected to the transfer pipe section 4, ensuring the stability of the first concrete pipe section 1 after connection and the safety and stability during the connection process.

[0110] The top surface of the second flange 12 and the top surface of the pipe section body 13 are provided with a second adhesive layer. The material of the second adhesive layer is preferably, but not limited to, epoxy adhesive, and the 7-day compressive strength is not less than 80 MPa.

[0111] The second adhesive layer serves to seal and waterproof the space between the first concrete pipe section 1 and the transfer pipe section 4.

[0112] The following is for reference. Figures 1-8 A tower according to an embodiment of the present utility model is described.

[0113] like Figures 1-8 As shown, the tower of this utility model embodiment includes the tower tube section assembly of this utility model embodiment.

[0114] The tower of this embodiment, due to the use of the tower tube section assembly of this embodiment, has a smaller size and weight, especially the upper part of the tower, which has a smaller size and weight, enabling the tower to have an ideal second-order frequency, thereby avoiding safety hazards caused by resonance with the wind turbine. At the same time, the tower has strong safety and stability during installation, facilitating tower installation and construction, and thus has higher installation efficiency and environmental adaptability.

[0115] In some embodiments, the tower of this utility model further includes a tower foundation 5, a second concrete pipe section 3, and a transfer pipe section 4. The second concrete pipe section 3 is disposed on the tower foundation 5. There are multiple tower pipe section assemblies. The first concrete pipe sections 1 of the multiple tower pipe section assemblies are sequentially disposed on the second concrete pipe section 3 in a vertical direction. The transfer pipe section 4 is disposed on the topmost first concrete pipe section 1. The second concrete pipe section 3, the bottommost first concrete pipe section 1, adjacent first concrete pipe sections 1, the topmost first concrete pipe section 1, and the transfer pipe section 4 are respectively connected by multiple prestressed anchor bolts 2.

[0116] like Figures 1-6 As shown, the tower foundation 5, the second concrete pipe section 3, multiple tower pipe section assemblies and the transfer pipe section 4 are connected in sequence from bottom to top, and the top of the transfer pipe section 4 is used to connect the main unit 6.

[0117] The topmost tower section assembly includes a first concrete section 1 and a plurality of third prestressed anchor bolts 23 located on a second flange portion 12 at the top of the first concrete section 1, the third prestressed anchor bolts 23 connecting the first concrete section 1 to the transfer section 4.

[0118] Except for the topmost tower tube section assembly, the remaining tower tube section assemblies all include a first concrete tube section 1 and a plurality of first prestressed anchor bolts 21 located on the first flange portion 11 at the top of the first concrete tube section 1. The plurality of first prestressed anchor bolts 21 of each tower tube section assembly connect the first concrete tube section 1 of the tower tube section assembly to the first concrete tube section 1 of another tower tube section assembly above it.

[0119] The bottommost tower tube section assembly also includes a plurality of second prestressed anchor bolts 22 located on the first flange portion 11 at the bottom end of the first concrete tube section 1, the second prestressed anchor bolts 22 connecting the first concrete tube section 1 to the second concrete tube section 3.

[0120] Preferably, along the vertical direction, the lower half of the tower consists of a tower foundation 5 and a second concrete pipe section 3, while the upper half consists of multiple first concrete pipe sections 1 and transfer pipe sections 4. The first concrete pipe sections 1 allow the upper half of the tower to have smaller lateral dimensions and lower self-weight, enabling the tower to have an ideal second-order frequency, thereby avoiding safety hazards caused by resonance with the wind turbine.

[0121] This utility model embodiment also proposes a tower construction process based on the tower of this utility model embodiment.

[0122] like Figures 1-8 As shown, the tower construction process of this utility model embodiment is based on the tower of this utility model embodiment. The tower construction process includes setting a second concrete pipe section 3 on the tower foundation 5. Multiple tower pipe section assemblies are set on the second concrete pipe section 3, and the first concrete pipe sections 1 of the multiple tower pipe section assemblies are arranged sequentially in the vertical direction. A transfer pipe section 4 is set on the topmost tower pipe section assembly.

[0123] The tower construction process of this utility model embodiment is used to install the tower of this utility model embodiment, thereby enabling the tower obtained by construction to have higher safety performance, avoid safety hazards caused by resonance with wind turbine units, and have strong safety and stability during installation, so as to have higher installation efficiency and be able to be constructed in more complex environments.

[0124] In some embodiments, the tower construction process includes, after the second concrete pipe section 3 is placed on the tower foundation 5, leveling the top surface of the second concrete pipe section 3 and applying adhesive. The adhesive on the top surface of the second concrete pipe section 3 forms a first adhesive layer on the bottom surface of the first concrete pipe section 1 of the bottommost tower pipe section assembly.

[0125] One of the first concrete pipe sections 1 is suspended onto the second concrete pipe section 3, serving as the first concrete pipe section 1 of the bottommost tower pipe section assembly. Then, a plurality of prestressed anchor bolts 2 are installed on the second concrete pipe section 3 and the first concrete pipe section 1 above it. Specifically, a plurality of second prestressed anchor bolts 22 are installed on the bottom first flange 11 of the second concrete pipe section 3 and the bottommost first concrete pipe section 1, and the plurality of prestressed anchor bolts 2 are tensioned to the required preload. Anti-corrosion grease is then filled into the gap outside each prestressed anchor bolt 2. The gap outside the second prestressed anchor bolt 22 includes the gap between the second prestressed anchor bolt 22 and the inner circumferential surface of the corresponding connecting hole 111, and further includes the gap between the second prestressed anchor bolt 22 and the inner circumferential surface of the first insertion hole.

[0126] The remaining first concrete pipe sections 1 are sequentially hoisted onto the previous first concrete pipe section 1. In other words, the second first concrete pipe section 1 is hoisted onto the bottom first concrete pipe section 1, the third first concrete pipe section 1 is hoisted onto the second first concrete pipe section 1, and so on, until all the first concrete pipe sections 1 are hoisted. The first concrete pipe section 1 with the second flange 12 is hoisted last, so that the first concrete pipe section 1 with the second flange 12 is the topmost first concrete pipe section 1 among all the first concrete pipe sections 1. Before each hoisting of a first concrete pipe section 1, the top surface of the previous first concrete pipe section 1 is leveled and adhesive is applied to form the first adhesive layer on the top of the previous first concrete pipe section 1. After each hoisting of the first concrete pipe section 1, multiple prestressed anchor bolts 2 are installed on the hoisted first concrete pipe section 1 and the previous first concrete pipe section 1. Specifically, multiple first prestressed anchor bolts 21 are inserted through the bottom first flange 11 of the hoisted first concrete pipe section 1 and the top first flange 11 of the previous first concrete pipe section 1. The multiple prestressed anchor bolts 2 are then tensioned to the required preload, and anti-corrosion grease is filled into the gaps outside each prestressed anchor bolt 2. The gaps outside the first prestressed anchor bolt 21 are the gaps between the first prestressed anchor bolt 21 and the inner circumferential surfaces of the corresponding two connecting holes 111.

[0127] It should be noted that the preceding first concrete pipe section 1 is the first concrete pipe section 1 above the first concrete pipe section 1 being hoisted in the hoisting sequence. On the tower, the first concrete pipe section 1 is located above the preceding first concrete pipe section 1.

[0128] The top surface of the topmost first concrete pipe section 1 is leveled and coated with adhesive to form a second adhesive layer on the top of the topmost first concrete pipe section 1. The transfer pipe section 4 is hoisted onto the topmost first concrete pipe section 1, and then multiple prestressed anchor bolts 2 are installed on the transfer pipe section 4 and the topmost first concrete pipe section 1. Specifically, multiple third prestressed anchor bolts 23 are inserted through the top flange 11 of the topmost first concrete pipe section 1 and the bend of the transfer pipe section 4, and the multiple prestressed anchor bolts 2, specifically the third prestressed anchor bolts 23, are tensioned to the required preload. Then, anti-corrosion grease is filled into the gaps outside each prestressed anchor bolt 2, specifically the third prestressed anchor bolt 23. The gaps outside the third prestressed anchor bolt 23 include the gap between the third prestressed anchor bolt 23 and the inner circumferential surface of the corresponding connecting hole 111, and the gap between the third prestressed anchor bolt 23 and the bend of the transfer pipe section 4.

[0129] Furthermore, the prestressed anchor bolt 2 is installed by the operator on the working platform, which is located in the inner cavity of the tower. The inner cavity of the tower includes the inner cavity of the first concrete pipe section 1, the inner cavity of the second concrete pipe section 3, and the inner cavity of the transfer pipe section 4.

[0130] Furthermore, when tensioning the prestressed anchor 2, the lower end of the prestressed anchor 2 is first fixed, and then the prestressed anchor 2 is tensioned upwards to facilitate operation by the operator.

[0131] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0132] Furthermore, the terms "first" and "second" are used only for distinction and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0133] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0134] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0135] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0136] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A tower tube section assembly, characterized in that, include: The first concrete pipe section (1) and a plurality of prestressed anchor bolts (2) are provided. The first concrete pipe section (1) includes an integrally connected pipe section body (13) and a first flange portion (11). The pipe section body (13) has at least one axial end provided with the first flange portion (11), and the first flange portion (11) is provided on the inner circumferential surface of the pipe section body (13). The first flange portion (11) is provided with a connecting hole (111) for passing through the prestressed anchor bolt (2). The connecting holes (111) are a plurality of holes arranged at intervals along the circumference of the first concrete pipe section (1). The plurality of prestressed anchor bolts (2) are used to connect the first concrete pipe section (1) and other adjacent pipe sections.

2. The tower tube section assembly according to claim 1, characterized in that, The prestressed anchor (2) includes a first prestressed anchor (21), and the other pipe sections include the first concrete pipe section (1). The first prestressed anchor (21) is used to pass through and connect adjacent first flange portions (11), and the adjacent first flange portions (11) are respectively located in the corresponding first concrete pipe sections (1) of the adjacent first concrete pipe sections (1), so that the multiple first prestressed anchors (21) connect the adjacent first concrete pipe sections (1).

3. The tower tube section assembly according to claim 2, characterized in that, The prestressed anchor (2) includes a second prestressed anchor (22), and the other pipe section includes a second concrete pipe section (3). One end of the second prestressed anchor (22) is used to pass through the first flange (11), and the other end of the second prestressed anchor (22) is used to insert or embed in the second concrete pipe section (3) so that a plurality of second prestressed anchors (22) connect the first concrete pipe section (1) and the adjacent second concrete pipe section (3).

4. The tower tube section assembly according to claim 3, characterized in that, The pipe section body (13) is provided with the first flange portion (11) at both axial ends. The first flange portion (11) at both ends is used to install multiple first prestressed anchor bolts (21). Alternatively, the first flange portion (11) at one end is used to install multiple first prestressed anchor bolts (21), and the first flange portion (11) at the other end is used to install multiple second prestressed anchor bolts (22).

5. The tower tube section assembly according to claim 1, characterized in that, At least a portion of the reinforcing bars in the first concrete pipe section (1) are prestressed tendons (14) formed by pretensioning.

6. The tower tube section assembly according to claim 1, characterized in that, The cross-sectional area of ​​the first flange (11) is constant along the axial direction of the first concrete pipe section (1); and / or On the longitudinal section of the first concrete pipe section (1), the cross-sectional line of the circumferential end face of the first flange (11) is parallel to the central axis of the first concrete pipe section (1).

7. The tower tube section assembly according to claim 1, characterized in that, The thickness of the first flange (11) is 1.1 to 1.5 times the thickness of the pipe section body (13).

8. The tower tube section assembly according to claim 1, characterized in that, The first flange (11) extends 0.8m to 1.2m along the axial direction of the first concrete pipe section (1).

9. The tower tube section assembly according to claim 1, characterized in that, The ratio of the length of the first flange (11) extending along the axial direction of the first concrete pipe section (1) to the axial length of the first concrete pipe section (1) is 1:17 to 1:

21.

10. The tower tube section assembly according to claim 1, characterized in that, It also includes a first adhesive layer, wherein the outer end face of the first flange portion (11) along the axial direction of the first concrete pipe section (1) is flush with the axial end face of the pipe section body (13), and the first adhesive layer is provided on the outer end face of the first flange portion (11) and the axial end face of the pipe section body (13)(1).

11. The tower tube section assembly according to claim 2, characterized in that, The prestressed anchor (2) includes a third prestressed anchor (23), and the other pipe sections include a transfer pipe section (4). The first concrete pipe section (1) also includes a second flange (12) integrally connected to the pipe section body (13). The first flange (11) is provided at one axial end of the pipe section body (13), and the first flange (11) is used to install a plurality of first prestressed anchors (21). The second flange (12) is provided at the other axial end of the pipe section body (13), and the second flange (12) is provided on the inner circumferential surface of the pipe section body (13). The second flange (12) inserts or embeds one end of a plurality of third prestressed anchors (23). The plurality of third prestressed anchors (23) are arranged at intervals along the circumference of the first concrete pipe section (1), and the other end of the plurality of third prestressed anchors (23) is used to connect to the transfer pipe section (4).

12. The tower tube section assembly according to claim 11, characterized in that, The second flange (12) includes a first section (121) and a second section (122) arranged sequentially along the axial direction of the first concrete pipe section (1); The cross-sectional area of ​​the first segment (121) is constant along the axial direction of the first concrete pipe section (1), and the cross-sectional area of ​​the second segment (122) decreases from the outside to the inside along the axial direction of the first concrete pipe section (1). The maximum cross-sectional area of ​​the second segment (122) is equal to the cross-sectional area of ​​the first segment (121), and the minimum cross-sectional area of ​​the second segment (122) is zero; and / or On the longitudinal section of the first concrete pipe section (1), the cross-sectional line of the circumferential end face of the first segment (121) is parallel to the central axis of the first concrete pipe section (1), and the circumferential end face of the second segment (122) extends radially from the circumferential end face of the first segment (121) to the inner circumferential surface of the pipe section body (13), and is inclined from the outside to the inside along the axial direction of the first concrete pipe section (1).

13. The tower tube section assembly according to claim 12, characterized in that, The length of the first segment (121) along the axial direction of the first concrete pipe section (1) is 0.8 to 1.2 times the length of the second segment (122) along the axial direction of the first concrete pipe section (1).

14. The tower tube section assembly according to claim 11, characterized in that, It also includes a second adhesive layer, wherein the outer end face of the second flange portion (12) along the axial direction of the first concrete pipe section (1) is flush with the axial end face of the pipe section body (13), and the second adhesive layer is provided on the outer end face of the second flange portion (12) and the axial end face of the pipe section body (13).

15. A tower, characterized in that, include: The tower tube section assembly according to any one of claims 1-14.

16. The tower according to claim 15, characterized in that, Also includes: The tower foundation (5), the second concrete pipe section (3), and the transfer pipe section (4) are provided. The second concrete pipe section (3) is provided on the tower foundation (5). There are multiple tower pipe section assemblies. The first concrete pipe sections (1) of the multiple tower pipe section assemblies are arranged vertically on the second concrete pipe section (3). The transfer pipe section (4) is provided on the topmost first concrete pipe section (1). The second concrete pipe section (3), the bottommost first concrete pipe section (1), the adjacent first concrete pipe section (1), the topmost first concrete pipe section (1), and the transfer pipe section (4) are respectively connected by multiple prestressed anchor bolts (2).

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