Tower drum pipe joint assembly, tower drum and tower drum construction technology

Abstract

The invention provides a tower drum pipe joint assembly, a tower drum and a tower drum construction technology. 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 with 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] The invention relates to the field of wind power, and in particular to a tower tube segment assembly, a tower and a tower construction process. Background Art

[0002] The tower of a wind turbine generator set includes a plurality of tower tube segments arranged in sequence along the vertical direction. In the related art, prestressed anchor cables are sequentially passed through the walls of the plurality of tower tube segments or full-length prestressed anchor cables are arranged inside the tower outside the walls of the tower tube segments, and then tensioned to the required preload force to fix the plurality of tower tube segments.

[0003] However, the concrete tower tube sections have thicker walls, larger diameters and heavier weights, which in turn make the tower larger in size and heavier in weight. In particular, the upper portion of the tower is larger in size and heavier in weight, resulting in an unsatisfactory second-order frequency of the tower, which can easily overlap with the speed frequency of the wind turbine and form resonance, thus creating a safety hazard.

[0004] At the same time, since the prestressed anchor cables are tensioned after multiple tower tube segments are hoisted, when each tower tube segment is hoisted, it is generally necessary to set auxiliary components between adjacent tower tube segments or only use adhesives to bond them, thereby auxiliary connecting the adjacent tower tube segments.

[0005] However, due to the low connection strength of the existing auxiliary connection method, the safety and stability of the tower during the installation process are poor. If a situation such as a high wind speed occurs during the installation of the tower, the tower in the installation process will have installation risks such as tipping over. Therefore, there are great restrictions on the installation environment of the tower, which is not conducive to the installation efficiency of the tower and the popularization of wind turbines. Summary of the invention

[0006] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0007] To this end, embodiments of the present invention provide a tower pipe segment assembly, a tower using the tower pipe segment assembly, and a tower construction process based on the tower.

[0008] The tower tube segment assembly of the embodiment of the present invention comprises:

[0009] A first concrete pipe segment and a plurality of prestressed anchor bolts, wherein the first concrete pipe segment comprises a segment body and a first flange portion which are integrally connected, wherein the first flange portion is provided at at least one axial end of the segment body, and the first flange portion is provided on the inner circumferential surface of the segment body, and the first flange portion is provided with connecting holes for passing the prestressed anchor bolts, wherein the connecting holes are arranged in a plurality at intervals along the circumferential direction of the first concrete pipe segment, and the plurality of prestressed anchor bolts are used to connect the first concrete pipe segment and other adjacent pipe segments.

[0010] In the tower tube segment assembly of the embodiment of the present invention, at least one axial end of the first concrete tube segment has a first flange, so that a plurality of prestressed anchor bolts are inserted through the first flange, thereby connecting the first concrete tube segment with other adjacent tube segments through the plurality of prestressed anchor bolts. The first concrete tube segment has a thinner wall thickness and a smaller diameter, especially the wall thickness of the tube segment body is thinner. At the same time, the prestressed anchor bolts have a stronger connection bearing capacity. The prestressed anchor bolts are installed by inserting them through the first flange, and the installation operation space required during installation is smaller, which further makes the first concrete tube segment have a smaller diameter, and thus makes the first concrete tube segment have a smaller transverse dimension and self-weight. Therefore, the tower of the tower tube segment assembly of the embodiment of the present invention has a smaller transverse dimension and self-weight, so as to have an ideal second-order frequency, and can avoid the safety hazard caused by resonance with the wind turbine.

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

[0012] In addition, since the first concrete pipe section has a smaller transverse dimension and deadweight, it is also convenient to transport and hoist the first concrete pipe section.

[0013] In some embodiments, the prestressed anchor includes a first prestressed anchor, and the other pipe sections include the first concrete pipe sections. The first prestressed anchor is used to penetrate and connect adjacent first flange portions, and adjacent first flange portions are respectively located at corresponding first concrete pipe sections in adjacent first concrete pipe sections, so that multiple first prestressed anchors connect adjacent first concrete pipe sections.

[0014] In some embodiments, the prestressed anchor includes a second prestressed anchor, and the other pipe sections include a second concrete pipe section. One end of the second prestressed anchor is used to be passed through the first flange portion, and the other end of the second prestressed anchor is used to be inserted or buried in the second concrete pipe section, so that multiple second prestressed anchors connect the first concrete pipe section and the second concrete pipe section adjacent to it.

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

[0016] In some embodiments, at least part of the steel bars of the first concrete pipe segment are prestressed steel bars.

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

[0018] In the longitudinal section of the first concrete pipe segment, a section line of a circumferential end surface of the first flange portion is parallel to a central axis of the first concrete pipe segment.

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

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

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

[0022] In some embodiments, the tower pipe segment assembly also includes a first adhesive layer, the axial outer end surface of the first flange portion along the first concrete pipe segment is flush with the axial end surface of the pipe segment body, and the first adhesive layer is arranged on the outer end surface of the first flange portion and the axial end surface of the pipe segment body.

[0023] In some embodiments, the prestressed anchor includes a third prestressed anchor, the other pipe sections include a transfer pipe section, the first concrete pipe section also 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 set a plurality of the first prestressed anchors, the second flange portion is provided at the other axial end of the pipe section body, and the second flange portion is arranged on the inner circumferential surface of the pipe section body, the second flange portion is inserted or buried in one end of a plurality of the third prestressed anchors, the plurality of the third prestressed anchors are arranged at intervals along the circumference of the first concrete pipe section, and the other ends of the plurality of the third prestressed anchors are used to connect the transfer pipe section.

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

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

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

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

[0028] In some embodiments, the tower pipe segment assembly also includes a second adhesive layer, the axial outer end surface of the second flange portion along the first concrete pipe segment is flush with the axial end surface of the pipe segment body, and the second adhesive layer is arranged on the outer end surface of the second flange portion and the axial end surface of the pipe segment body.

[0029] The tower of the embodiment of the present invention includes: the tower pipe segment assembly described in any one of the above embodiments.

[0030] The tower of the embodiment of the present invention has a smaller size and deadweight due to the use of the tower tube segment assembly of the embodiment of the present invention, especially the upper part of the tower has a smaller size and deadweight, so that the tower has an ideal second-order frequency, thereby avoiding the safety hazard caused by resonance with the wind turbine. At the same time, the tower is safer and more stable during the installation process, which facilitates the installation and construction of the tower, so as to have higher installation efficiency and environmental adaptability.

[0031] In some embodiments, the tower further includes: a tower foundation, a second concrete pipe section and a transition pipe section, the second concrete pipe section is arranged on the tower foundation, there are multiple tower pipe section assemblies, the first concrete pipe sections of the multiple tower pipe section assemblies are arranged on the second concrete pipe sections in sequence along the vertical direction, the transition pipe section is arranged on the topmost first concrete pipe section, the second concrete pipe section and the bottommost first concrete pipe section, the adjacent first concrete pipe section, the topmost first concrete pipe section and the transition pipe section are respectively connected by multiple prestressed anchor bolts.

[0032] The tower of the tower construction process of the embodiment of the present invention is the tower described in the above embodiment, and the tower construction process includes:

[0033] Arranging the second concrete pipe section on the tower foundation;

[0034] Arranging a plurality of tower tube segment assemblies on the second concrete tube segment, and arranging the first concrete tube segments of the plurality of tower tube segment assemblies in sequence along the vertical direction;

[0035] A transfer pipe joint is arranged on the tower pipe joint assembly at the top.

[0036] The tower construction process of the embodiment of the present invention is used to install the tower of the embodiment of the present invention, so that the tower obtained by construction has higher safety performance, can avoid safety hazards caused by resonance with the wind turbine set, and at the same time has strong safety and stability during the installation process, so as to have higher installation efficiency and be able to be constructed in more complex environments.

[0037] In some embodiments, after the second concrete pipe segment is arranged on the tower foundation, the top surface of the second concrete pipe segment is leveled and an adhesive is applied;

[0038] Hanging one of the first concrete pipe sections on the second concrete pipe section, then installing a plurality of prestressed anchor bolts on the second concrete pipe section and the first concrete pipe section thereon, tensioning the plurality of prestressed anchor bolts to a required pre-tightening force, and then filling anti-corrosion grease into the gap outside each prestressed anchor bolt;

[0039] The remaining first concrete pipe sections are sequentially suspended on the previous first concrete pipe section, and before each suspension of the first concrete pipe section, the top surface of the previous first concrete pipe section is leveled and the adhesive is applied, and after each suspension of the first concrete pipe section, a plurality of prestressed anchor bolts are installed on the suspended first concrete pipe section and the previous first concrete pipe section, and the plurality of prestressed anchor bolts are tensioned to a required pre-tightening force, and then anti-corrosion grease is filled into the gap outside each prestressed anchor bolt;

[0040] The top surface of the first concrete pipe section at the top is leveled and coated with adhesive, the transfer pipe section is hung on the first concrete pipe section at the top, and then a plurality of prestressed anchor bolts are installed on the transfer pipe section and the first concrete pipe section at the top, and the plurality of prestressed anchor bolts are tensioned to a required preload force, and then anti-corrosion grease is filled into the gap outside each prestressed anchor bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a schematic diagram of a tower according to an embodiment of the present invention;

[0042] Figure 2 yes Figure 1 An enlarged schematic diagram of the topmost tower tube segment assembly;

[0043] Figure 3 yes Figure 1 An enlarged schematic diagram of the tower tube segment assemblies except for the topmost and bottommost tower tube segment assemblies;

[0044] Figure 4 yes Figure 1 A partial enlarged schematic diagram of the connection between the topmost tower tube segment assembly and the transfer tube segment;

[0045] Figure 5 yes Figure 1 A partial enlarged schematic diagram of the connection between adjacent tower tube segment assemblies;

[0046] Figure 6 yes Figure 1 A partial enlarged schematic diagram of the connection between the bottom tower tube segment assembly and the second concrete tube segment;

[0047] Figure 7 is a top view of a pipe segment body of a first concrete pipe segment according to an embodiment of the present invention;

[0048] Figure 8 It is a schematic cross-sectional view of a pipe segment body of a first concrete pipe segment according to an embodiment of the present invention.

[0049] Reference numerals:

[0050] 1. first concrete pipe segment; 11. first flange; 111. connection hole; 12. second flange; 121. first section; 122. second section; 13. pipe segment body; 14. prestressed tendons;

[0051] 2. Prestressed anchor bolt; 21. First prestressed anchor bolt; 22. Second prestressed anchor bolt; 23. Third prestressed anchor bolt;

[0052] 3. The second concrete pipe section;

[0053] 4. Transfer the pipe joint;

[0054] 5. Tower foundation;

[0055] 6. Host. DETAILED DESCRIPTION

[0056] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0057] Reference below Figure 1-Figure 8 The tower tube segment assembly, the tower and the tower construction process according to the embodiments of the present invention are described.

[0058] like Figure 1-Figure 8 As shown, the tower pipe segment assembly according to the embodiment of the present invention includes a first concrete pipe segment 1 and a plurality of prestressed anchor bolts 2 .

[0059] The first concrete pipe segment 1 comprises a pipe segment body 13 and a first flange portion 11 which are integrally connected. The first flange portion 11 is disposed at at least one axial end of the pipe segment body 13 , and the first flange portion 11 is disposed on the inner circumferential surface of the pipe segment body 13 .

[0060] like Figure 2 and Figure 3 As shown, the pipe segment body 13 is preferably but not limited to being arranged around the vertical direction and extending along the vertical direction, the axial direction of the pipe segment body 13 is consistent with the axial direction of the first concrete pipe segment 1, both are in the vertical direction, the radial direction of the pipe segment body 13 is consistent with the radial direction of the first concrete pipe segment 1, both are in the horizontal direction, and the circumferential direction of the pipe segment body 13 is consistent with the circumferential direction of the first concrete pipe segment 1, both are in the vertical direction.

[0061] The wall thickness of the pipe segment 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 segment body 13 can be set to be constant in the vertical direction, or 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 segment body 13 is provided with a first flange portion 11, and the first flange portion 11 is provided on the inner circumference of the pipe segment body 13. In other words, the first flange portion 11 protrudes from the inner circumference of the pipe segment body 13 toward the centerline axis of the first concrete pipe segment 1. The first flange portion 11 is preferably, but not limited to, annular in the vertical direction.

[0062] The first concrete pipe segment 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, and in particular, to make the wall thickness of the pipe segment body 13 thinner.

[0063] The first flange portion 11 is provided with connection holes 111 for passing prestressed anchor bolts 2. There are a plurality of connection holes 111 arranged at intervals along the circumference of the first concrete pipe segment 1. The plurality of prestressed anchor bolts 2 are used to connect the first concrete pipe segment 1 with other adjacent pipe segments.

[0064] like Figure 2 , Figure 3 and Figure 7 As shown, the first flange portion 11 is provided with a connecting hole 111 penetrating the first flange portion 11 in the vertical direction. The connecting hole 111 is provided in plurality, and the plurality of connecting holes 111 are arranged at intervals along the circumference of the first flange portion 11. In other words, the plurality of connecting holes 111 are arranged at intervals around the vertical direction, preferably but not limited to being arranged equidistantly.

[0065] The connection holes 111 are used for passing prestressed anchor bolts 2. Multiple prestressed anchor bolts 2 passed through the first flange portion 11 extend from the first flange portion 11 to connect the first concrete pipe segment 1 with other adjacent pipe segments. It should be noted that the multiple prestressed anchor bolts 2 play a complete or main connecting role on the first concrete pipe segment 1 and other adjacent pipe segments, rather than an auxiliary connecting role.

[0066] It should be noted that the tower pipe segment assembly includes a first concrete pipe segment 1 and a plurality of prestressed anchor bolts 2, but the prestressed anchor bolts 2 are not limited to being always inserted in the connection holes 111. Before the tower pipe segment assembly is constructed to form a tower, for example, during the sale or transportation process, the plurality of prestressed anchor bolts 2 can be respectively inserted in the corresponding connection holes 111, or can be separated from the first concrete pipe segment 1, preferably separated, so that the tower pipe segment assembly has a smaller occupied space in the unconstructed state such as during the sale or transportation process, and is easy to move and place.

[0067] It should be noted that the number of connecting holes 111 on the first flange portion 11 and the number of prestressed anchor bolts 2 for passing through the first flange portion 11 are not limited to a one-to-one correspondence. When the first concrete pipe segment 1 is connected to other adjacent pipe segments, the multiple connecting holes 111 of the first flange portion 11 on the first concrete pipe segment 1 adjacent to other pipe segments can all be passed through with prestressed anchor bolts 2, or some of the connecting holes 111 can be passed through with prestressed anchor bolts 2.

[0068] It should be noted that in the embodiment where the first flange portion 11 is provided at both the top and the bottom of the pipe segment body 13, the multiple prestressed anchor bolts 2 included in the tower pipe segment assembly can all be used to be penetrated on one of the first flange portions 11, or a part of the prestressed anchor bolts 2 can be used to be penetrated on the first flange portion 11 at the top, and the other part of the prestressed anchor bolts 2 can be used to be penetrated on the first flange portion 11 at the bottom.

[0069] In the tower tube segment assembly of the embodiment of the present invention, at least one axial end of the first concrete tube segment has a first flange, so that a plurality of prestressed anchor bolts are inserted through the first flange, thereby connecting the first concrete tube segment with other adjacent tube segments through the plurality of prestressed anchor bolts. The first concrete tube segment has a thinner wall thickness and a smaller diameter, especially the wall thickness of the tube segment body is thinner. At the same time, the prestressed anchor bolts have a stronger connection bearing capacity. The prestressed anchor bolts are installed by inserting them through the first flange, and the installation operation space required during installation is smaller, which further makes the first concrete tube segment have a smaller diameter, and thus makes the first concrete tube segment have a smaller transverse dimension and self-weight. Therefore, the tower of the tower tube segment assembly of the embodiment of the present invention has a smaller transverse dimension and self-weight, so as to have an ideal second-order frequency, and can avoid the safety hazard caused by resonance with the wind turbine.

[0070] At the same time, since the first concrete pipe segment is connected to other adjacent pipe segments through multiple prestressed anchor bolts, the prestressed anchor bolts can be tensioned after the first concrete pipe segment and other pipe segments are hoisted into place to fix the first concrete pipe segment to other pipe segments, thereby improving the safety and stability of the tower during the installation process.

[0071] In addition, since the first concrete pipe section has a smaller transverse dimension and deadweight, it is also convenient to transport and hoist the first concrete pipe section.

[0072] In some embodiments, the prestressed anchor 2 includes a first prestressed anchor 21, and other pipe sections include a first concrete pipe section 1. The first prestressed anchor 21 is used to penetrate and connect adjacent first flange portions 11, and adjacent first flange portions 11 are respectively located at corresponding first concrete pipe sections 1 in adjacent first concrete pipe sections 1, so that multiple first prestressed anchors 21 connect adjacent first concrete pipe sections 1.

[0073] like Figure 1 As shown, a tower pipe segment assembly can be connected to another adjacent tower pipe segment assembly. In other words, the first concrete pipe segment 1 of a tower pipe segment assembly is connected to another adjacent pipe segment which is another first concrete pipe segment 1 of another tower pipe segment assembly.

[0074] 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 segment 1 are both provided with a first flange portion 11, and a plurality of first prestressed anchor bolts 21 are used to be all passed through the first flange portion 11 at the top and extend upward from the first flange portion 11 at the top to be used for connecting another first concrete pipe segment 1.

[0075] like Figure 5As shown, the top first flange portion 11 of the first concrete pipe segment 1 at the bottom is penetrated by a plurality of first prestressed anchor bolts 21, and each first prestressed anchor bolt 21 extends upward. Since the bottom first flange portion 11 of the first concrete pipe segment 1 at the top is not penetrated by the prestressed anchor bolts 2 included in the tower pipe segment assembly where the first concrete pipe segment 1 is located, the first prestressed anchor bolts 21 on the top first flange portion 11 of the first concrete pipe segment 1 at the bottom can be penetrated in the corresponding connection holes 111 of the bottom first flange portion 11 of the first concrete pipe segment 1 at the top, that is, the lower end of the first prestressed anchor bolt 21 is penetrated by the top first flange portion 11 of the first concrete pipe segment 1 at the bottom, and the upper end of the first prestressed anchor bolt 21 is penetrated by the bottom first flange portion 11 of the first concrete pipe segment 1 at the top, so as to connect the top first flange portion 11 of the first concrete pipe segment 1 at the bottom and the bottom first flange portion 11 of the first concrete pipe segment 1 at the top, thereby connecting the first concrete pipe segment 1 at the bottom and the first concrete pipe segment 1 at the top. In other words, the plurality of first prestressed anchor bolts 21 of the lower tower tube segment assembly connect the lower tower tube segment assembly and the upper tower tube segment assembly.

[0076] Specifically, the first prestressed anchor 21 includes a first screw and a first nut. The first nuts are provided at both axial ends of the first screw. The upper end of the first screw is passed through the first flange portion 11 at the bottom end of the upper first concrete pipe segment 1, and the first nut at the upper end is abutted against the top surface of the first flange portion 11 at the bottom end of the upper first concrete pipe segment 1. The lower end of the first screw is passed through the first flange portion 11 at the top end of the lower first concrete pipe segment 1, and the first nut at the lower end is abutted against the bottom surface of the first flange portion 11 at the top end of the lower first concrete pipe segment 1.

[0077] In some embodiments, the prestressed anchor 2 includes a second prestressed anchor 22, and other pipe segments include a second concrete pipe segment 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 be inserted or buried in the second concrete pipe segment 3, so that multiple second prestressed anchors 22 connect the first concrete pipe segment 1 and the second concrete pipe segment 3 adjacent to it.

[0078] like Figure 1 As shown, the lowest tower pipe segment assembly is connected to the second concrete pipe segment 3 adjacent thereto. In other words, one of the other adjacent pipe segments connected to the first concrete pipe segment 1 of the lowest tower pipe segment assembly is the second concrete pipe segment 3 .

[0079] like Figure 6 As shown, the prestressed anchor bolt 2 includes a second prestressed anchor bolt 22. The plurality of second prestressed anchor bolts 22 are used to be all passed through the first flange portion 11 at the bottom end of the first concrete pipe segment 1 and extend downward from the first flange portion 11 at the bottom end to be used for connecting the second concrete pipe segment 3.

[0080] The upper end of the second prestressed anchor bolt 22 is inserted into the bottom first flange portion 11, and the lower end of the second prestressed anchor bolt 22 is inserted or buried in the second concrete pipe segment 3. Specifically, the second prestressed anchor bolt 22 includes a second screw and a second nut, and the second nut is arranged at the top of the second screw and is used to abut against the top surface of the first flange portion 11. When the lower end of the second prestressed anchor bolt 22 is inserted into the second concrete pipe segment 3, the second concrete pipe segment 3 has a first embedded nut cast inside it and a first insertion hole corresponding to the first embedded nut, and the lower end of the second prestressed anchor bolt 22 is inserted into the corresponding first insertion hole and is threadedly connected with the first embedded nut. When the lower end of the second prestressed anchor bolt 22 is buried in the second concrete pipe segment 3, the lower end of the second prestressed anchor bolt 22 is cast in the second concrete pipe segment 3 and is threadedly connected with the first embedded nut cast in the second concrete pipe segment 3, so during the connection process, the tops of multiple second prestressed anchor bolts 22 need to be inserted into the first flange portion 11. Preferably, the lower end of the second prestressed anchor bolt 22 is pre-buried in the second concrete pipe segment 3 during production of the second concrete pipe segment 3 to facilitate prefabrication production.

[0081] In some embodiments, a first flange portion 11 is provided at both axial ends of the pipe segment body 13, and the first flange portions 11 at both ends are used to set a plurality of first prestressed anchor bolts 21, or the first flange portion 11 at one end is used to set a plurality of first prestressed anchor bolts 21, and the first flange portion 11 at the other end is used to set a plurality of second prestressed anchor bolts 22.

[0082] like Figure 1-Figure 7 As shown, Figure 1 Except for the topmost first concrete pipe segment 1 , the top and bottom ends of the pipe segment bodies 13 of the other first concrete pipe segments 1 are all provided with first flange portions 11 . Figure 1 Except for the two first concrete pipe segments 1 at the top and the bottom, the two first flange portions 11 of the other first concrete pipe segments 1 are used to set multiple first prestressed anchor bolts 21 to connect adjacent first concrete pipe segments 1, thereby connecting multiple first concrete pipe segments 1 in sequence along the vertical direction. Figure 1 The top first flange portion 11 of the bottom first concrete pipe segment 1 is used to set a plurality of first prestressed anchor bolts 21 to connect the adjacent plurality of first prestressed anchor bolts 21 above it, and the bottom first flange portion 11 of the bottom first concrete pipe segment 1 is used to set a plurality of second prestressed anchor bolts 22 to connect the adjacent second concrete pipe segment 3 below it.

[0083] It can be understood that the bottom first concrete pipe section 1 and the second concrete pipe section 3 are not limited to being connected by the second prestressed anchor bolt 22. In other embodiments, a prestressed anchor cable is passed through the wall of the second concrete pipe section 3, or a prestressed anchor cable is arranged outside the wall of the second concrete pipe section 3, and the top end of the prestressed anchor cable is anchored and connected 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 through the prestressed anchor cable.

[0084] In some embodiments, at least part of the steel bars of the first concrete pipe section 1 are prestressed steel bars 14 .

[0085] like Figure 7 As shown, the first concrete pipe segment 1 has a plurality of steel bars cast in its wall, the plurality of steel bars include vertical steel bars and circumferential steel bars, the vertical steel bars extend along the axial direction of the first concrete pipe segment 1, and the circumferential steel bars extend along the circumference of the first concrete pipe segment 1. At least part of the vertical steel bars are cast in the wall of the pipe segment body 13, and are arranged at intervals along the circumference of the pipe segment body 13, preferably but not limited to being arranged at equal intervals. At least part of the vertical steel bars in the wall of the pipe segment body 13 are prestressed tendons 14, preferably, all the vertical steel bars in the wall of the pipe segment body 13 are prestressed tendons 14.

[0086] The prestressed steel bar 14 is a steel bar to which stress is applied in advance during the pouring process of the first concrete pipe segment 1. The prestressed steel bar 14 enables the first concrete pipe segment 1 to have strong crack resistance and bearing capacity, so as to ensure that the first concrete pipe segment 1 still has satisfactory mechanical properties when connected to other adjacent pipe segments through the prestressed anchor bolts 2. At the same time, the prestressed steel bar 14 also enables the first concrete pipe segment 1, especially the pipe segment body 13, to have smaller lateral dimensions and deadweight.

[0087] In addition, the prestressed anchor bolt 2 cooperates with the prestressed tendons 14 to further ensure the crack resistance and bearing capacity of the end of the first concrete pipe segment 1 connected to other pipe segments, so as to ensure the stability of the first concrete pipe segment 1 after connection and the safety and stability during the connection process.

[0088] In some embodiments, the cross-sectional area of ​​the first flange portion 11 is constant along the axial direction of the first concrete pipe segment 1 , and / or in the longitudinal section of the first concrete pipe segment 1 , the cross-sectional line of the circumferential end surface of the first flange portion 11 is parallel to the central axis of the first concrete pipe segment 1 .

[0089] 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 segment 1, the cross-sectional shape of the first flange portion 11 is two opposite rectangles.

[0090] In the longitudinal section of the first concrete pipe segment 1 , the section line of the inner circumference of the first flange portion 11 is parallel to the central axis of the first concrete pipe segment 1 . In other words, the section line of the inner circumference of the first flange portion 11 is a vertical line.

[0091] The shape of the first flange portion 11 ensures that a plurality of prestressed anchor bolts 2 can be arranged on the one hand, and ensures the bearing capacity and strength of the first flange portion 11 on the other hand.

[0092] In some embodiments, Figure 2 As shown, the thickness t1 of the first flange portion 11 is 1.1 to 1.5 times, preferably 1.1, 1.3, 1.5, and more preferably 1.33 times, of the thickness t of the pipe segment body 13. While ensuring the bearing capacity and strength of the pipe segment body 13 and the first flange portion 11, the pipe segment body 13 and the first flange portion 11 both have thinner wall thicknesses, thereby making the first concrete pipe segment 1 have smaller lateral dimensions and deadweight.

[0093] In some embodiments, Figure 2 As shown, the first flange portion 11 is axially extending along the first concrete pipe segment 1 (eg Figure 2 The extension length L1 in the vertical direction shown in the figure is 0.8m to 1.2m, preferably 0.8m, 1.0m, 1.2m, and more preferably 1.0m. This ensures the bearing capacity and strength of the first flange 11, and at the same time ensures the penetration length of the prestressed anchor bolt 2 in the first flange 11, so as to ensure that the prestressed anchor bolt 2 is stably connected.

[0094] In some embodiments, Figure 2 As shown, the ratio of the extension length L1 of the first flange 11 along the axial direction of the first concrete pipe segment 1 to the axial length L of the first concrete pipe segment 1 is 1:17 to 1:21. In other words, the axial length L of the first concrete pipe segment 1 is 17 to 21 times the axial length L1 of the first flange 11. Preferably, it is 1:17, 1:19, 1:21, and more preferably 1:19. To ensure the bearing capacity and strength of the first flange 11 and the first concrete pipe segment 1 as a whole, and at the same time make the first concrete pipe segment 1 have a higher axial dimension, on the one hand, the tower has fewer pipe segments at the same height, thereby facilitating the installation and construction of the tower, and on the other hand, the tower has a higher height, thereby having a stronger wind power generation and wind power generation efficiency.

[0095] In some embodiments, the tower pipe segment assembly of the embodiment of the present invention also includes a first adhesive layer, the axial outer end face of the first flange portion 11 along the first concrete pipe segment 1 is flush with the axial end face of the pipe segment body 13, and the first adhesive layer is arranged on the outer end face of the first flange portion 11 and the axial end face of the pipe segment body 131.

[0096] like Figure 3 As shown, the first flange portion 11 has an outer end face and an inner end face which are arranged opposite to each other in the vertical direction, and the inner end face is closer to the center of the first concrete pipe segment 1 along the axial direction of the first concrete pipe segment 1 than the outer end face. Therefore, the top face of the first flange portion 11 located at the top end of the pipe segment body 13 is the outer end face, and the bottom face of the first flange portion 11 located at the bottom end of the pipe segment body 13 is the outer end face.

[0097] The top surface of the first flange portion 11 at the top end is flush with the top surface of the pipe segment body 13 , and the bottom surface of the first flange portion 11 at the bottom end is flush with the bottom surface of the pipe segment body 13 .

[0098] The outer end face of the first flange portion 11 is flush with the axial end face of the pipe segment body 13, so as to serve as a splicing surface and abut against other pipe segments at the same time, so that the splicing surface of the first concrete pipe segment 1 has a larger area, thereby improving the bearing capacity of one end of the first concrete pipe segment 1 connected to the other pipe segments, ensuring the stability of the first concrete pipe segment 1 after connection as well as the safety and stability during the connection process.

[0099] At least one of the top surface of the top first flange portion 11 and the top surface of the pipe segment body 13, and the bottom surface of the bottom first flange portion 11 and the bottom surface of the pipe segment 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 80MPa.

[0100] The first adhesive layer plays a role of sealing and waterproofing between the first concrete pipe section 1 and other pipe sections connected thereto.

[0101] In some embodiments, the prestressed anchor 2 includes a third prestressed anchor 23, 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, a first flange portion 11 is provided at one axial end of the pipe section body 13, and the first flange portion 11 is used to set a plurality of first prestressed anchors 21, a second flange portion 12 is provided at the other axial end of the pipe section body 13, and the second flange portion 12 is arranged on the inner circumferential surface of the pipe section body 13, the second flange portion 12 is inserted or buried in 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 ends of the plurality of third prestressed anchors 23 are used to connect the transfer pipe section 4.

[0102] like Figure 1 and Figure 4As shown, the uppermost tower tube segment assembly is connected to the adjacent transition tube segment 4. In other words, one of the adjacent other tube segments connected to the first concrete tube segment 1 of the uppermost tower tube segment assembly is the transition tube segment 4. The transition tube segment 4 is used as the transition section of the tower, and its top is used to set the main machine 6. The bottom end of the transition tube segment 4 is provided with a bending portion extending toward the inner cavity of the transition tube segment 4. The bending portion is preferably, but not limited to, a ring around the vertical direction, and the bottom surface of the bending portion is against the first concrete tube segment 1 of the uppermost tower tube segment assembly. The transition tube segment 4 is preferably, but not limited to, made of steel.

[0103] like Figure 2 As shown, the prestressed anchor bolt 2 includes a third prestressed anchor bolt 23. In the uppermost tower pipe segment assembly, the first concrete pipe segment 1 includes a pipe segment body 13, a first flange portion 11 and a second flange portion 12.

[0104] A first flange portion 11 is provided at the bottom end of the pipe segment body 13, and the first flange portion 11 is used to penetrate multiple first prestressed anchor bolts 21 on the top first flange portion 11 of another tower pipe segment assembly adjacent below the tower pipe segment assembly, so as to connect the first concrete pipe segment 1 of the tower pipe segment assembly with the first concrete pipe segment 1 of another tower pipe segment assembly adjacent below through multiple first prestressed anchor bolts 21.

[0105] The top of the pipe segment body 13 is provided with a second flange 12, which is provided on the inner circumference of the pipe segment body 13. In other words, the second flange 12 protrudes from the inner circumference of the pipe segment body 13 toward the centerline axis of the first concrete pipe segment 1. The second flange 12 is preferably, but not limited to, annular in the vertical direction.

[0106] like Figure 4 As shown, the lower end of the third prestressed anchor 23 is inserted or buried in the second flange portion 12, and the upper end of the third prestressed anchor 23 extends upward from the second flange portion 12 to be passed through the bending portion of the transition pipe joint 4. There are multiple third prestressed anchors 23, and the multiple third prestressed anchors 23 are arranged at intervals around the vertical direction, so that the first concrete pipe section 1 is connected to the transition pipe joint 4 through the multiple third prestressed anchors 23.

[0107] Specifically, the third prestressed anchor bolt 23 includes a third screw and a third nut, the third nut is arranged at the top of the third screw and is used to abut against the top surface of the bent portion of the transition pipe section 4. When the lower end of the third prestressed anchor bolt 23 is inserted into the second flange portion 12, the second flange portion 12 has a second embedded nut cast therein and a second insertion hole corresponding to the second embedded nut, and the lower end of the third prestressed anchor bolt 23 is inserted into the corresponding second insertion hole and threadedly connected with the second embedded nut. When the lower end of the third prestressed anchor bolt 23 is embedded in the second flange portion 12, the lower end of the third prestressed anchor bolt 23 is cast in the second flange portion 12 and threadedly connected with the second embedded nut cast in the second flange portion 12, so that during the connection process, the tops of multiple third prestressed anchor bolts 23 need to be inserted into the transition pipe section 4. Preferably, the lower end of the third prestressed anchor bolt 23 is embedded in the second flange portion 12 when the first concrete pipe section 1 is produced, so as to facilitate prefabrication production.

[0108] In some embodiments, the second flange portion 12 includes a first section 121 and a second section 122 sequentially arranged along the axial direction of the first concrete pipe segment 1. The cross-sectional area of ​​the first section 121 is constant along the axial direction of the first concrete pipe segment 1, and the cross-sectional area of ​​the second section 122 decreases from the outside to the inside along the axial direction of the first concrete pipe segment 1. The maximum cross-sectional area of ​​the second section 122 is equal to the cross-sectional area of ​​the first section 121, and the minimum cross-sectional area of ​​the second section 122 is zero. And / or in the longitudinal section of the first concrete pipe segment 1, the cross-sectional line of the circumferential end surface of the first section 121 is parallel to the central axis of the first concrete pipe segment 1, and the circumferential end surface of the second section 122 extends from the circumferential end surface of the first section 121 to the inner circumferential surface of the pipe segment body 13 along the radial direction of the first concrete pipe segment 1, and is arranged obliquely from the outside to the inside along the axial direction of the first concrete pipe segment 1.

[0109] like Figure 2 As shown, the second flange portion 12 includes a first section 121 and a second section 122 which are arranged in sequence along the vertical direction. Along the axial direction of the first concrete pipe section 1 , the second section 122 is closer to the center of the first concrete pipe section 1 than the first section 121 .

[0110] The cross-sectional area of ​​the first section 121 is constant along the vertical direction, in other words, the thickness of the first section 121 is constant along the vertical direction. In the longitudinal section of the first concrete pipe segment 1, the cross-sectional shape of the first section 121 is two opposite rectangles.

[0111] The cross-sectional area of ​​the second section 122 is from outside to inside along the axial direction of the first concrete pipe section 1 (eg Figure 2In other words, the thickness of the first section 121 decreases from outside to inside along the axial direction of the first concrete pipe section 1. The top of the second section 122 has the largest cross-sectional area, which is equal to the cross-sectional area of ​​the first section 121, and the bottom of the second section 122 has the smallest cross-sectional area, which is zero. On the longitudinal section of the first concrete pipe section 1, the cross-sectional shape of the second section 122 is two right triangles opposite to each other on the left and right.

[0112] In the longitudinal section of the first concrete pipe segment 1 , the section line of the inner circumference of the first section 121 is parallel to the central axis of the first concrete pipe segment 1 . In other words, the section line of the inner circumference of the first section 121 is a vertical line.

[0113] In the longitudinal section of the first concrete pipe segment 1, the cross-sectional line of the inner circumference of the second section 122 is from inside to outside along the radial direction of the first concrete pipe segment 1 (eg Figure 2 As shown in the horizontal direction, it extends in a direction away from the central axis of the first concrete pipe section 1, and extends along the axial direction of the first concrete pipe section 1 from the outside to the inside (as shown in the horizontal direction, it extends in a direction away from the central axis of the first concrete pipe section 1). Figure 2 The second section 122 is tilted (from top to bottom), and the cross-sectional line of the inner circumference of the second section 122 is connected between the inner circumference of the first section 121 and the inner circumference of the pipe segment body 13.

[0114] Preferably, 90% or more of the portion of the third prestressed anchor bolt 23 in the second flange portion 12 is located in the first section 121, more preferably 95% or more.

[0115] The shape of the second flange portion 12 ensures that a plurality of third prestressed anchor bolts 23 can be arranged on the one hand, and ensures the bearing capacity and strength of the second flange portion 12 on the other hand.

[0116] In some embodiments, Figure 2 As shown, the extension length L21 of the first section 121 along the axial direction of the first concrete pipe section 1 is 0.8 to 1.2 times, preferably 0.8, 1.0, 1.2, and more preferably 1.0 times, of the extension length L22 of the second section 122 along the axial direction of the first concrete pipe section 1, so as to ensure the bearing capacity and strength of the second flange portion 12, and at the same time ensure the length of the third prestressed anchor bolt 23 in the second flange portion 12, so as to ensure the third prestressed anchor bolt 23 to achieve stable connection.

[0117] In some embodiments, the tower pipe segment assembly of the embodiment of the present invention also includes a second adhesive layer, the axial outer end face of the second flange portion 12 along the first concrete pipe segment 1 is flush with the axial end face of the pipe segment body 13, and the second adhesive layer is arranged on the outer end face of the second flange portion 12 and the axial end face of the pipe segment body 13.

[0118] like Figure 2As shown, the top surface of the second flange portion 12 is the outer end surface of the second flange portion 12, and the outer end surface of the second flange portion 12 is flush with the top surface of the first concrete pipe segment 1, so as to serve as a splicing surface and simultaneously abut against the transition pipe segment 4, so that the splicing surface of the first concrete pipe segment 1 has a larger area, thereby improving the bearing capacity of one end of the first concrete pipe segment 1 connected to the transition pipe segment 4, ensuring the stability of the first concrete pipe segment 1 after connection and the safety and stability during the connection process.

[0119] A second adhesive layer is provided on the top surface of the second flange portion 12 and the top surface of the pipe segment body 13. 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.

[0120] The second adhesive layer plays a role of sealing and waterproofing between the first concrete pipe section 1 and the transition pipe section 4 .

[0121] Reference below Figure 1-Figure 8 A tower according to an embodiment of the invention is described.

[0122] like Figure 1-Figure 8 As shown, the tower according to the embodiment of the present invention includes the tower pipe segment assembly according to the embodiment of the present invention.

[0123] The tower of the embodiment of the present invention has a smaller size and deadweight due to the use of the tower tube segment assembly of the embodiment of the present invention, especially the upper part of the tower has a smaller size and deadweight, so that the tower has an ideal second-order frequency, thereby avoiding the safety hazard caused by resonance with the wind turbine. At the same time, the tower is safer and more stable during the installation process, which facilitates the installation and construction of the tower, so as to have higher installation efficiency and environmental adaptability.

[0124] In some embodiments, the tower of the embodiment of the present invention further includes a tower foundation 5, a second concrete pipe segment 3 and a transition pipe segment 4. The second concrete pipe segment 3 is arranged on the tower foundation 5, there are multiple tower pipe segment assemblies, the first concrete pipe segments 1 of the multiple tower pipe segment assemblies are arranged on the second concrete pipe segment 3 in sequence along the vertical direction, the transition pipe segment 4 is arranged on the top first concrete pipe segment 1, and the second concrete pipe segment 3 and the bottom first concrete pipe segment 1, the adjacent first concrete pipe segment 1, the top first concrete pipe segment 1 and the transition pipe segment 4 are respectively connected by multiple prestressed anchor bolts 2.

[0125] like Figure 1-Figure 6 As shown, the tower foundation 5 , the second concrete pipe segment 3 , a plurality of tower pipe segment assemblies and the transfer pipe segment 4 are connected in sequence from bottom to top, and the top end of the transfer pipe segment 4 is used to connect to the main machine 6 .

[0126] The topmost tower pipe segment assembly includes a first concrete pipe segment 1 and a plurality of third prestressed anchor bolts 23 located on a second flange portion 12 at the top of the first concrete pipe segment 1 . The third prestressed anchor bolts 23 connect the first concrete pipe segment 1 with the transfer pipe segment 4 .

[0127] Except for the topmost tower pipe segment assembly, the remaining tower pipe segment assemblies all include a first concrete pipe segment 1 and a plurality of first prestressed anchor bolts 21 located on a first flange portion 11 at the top of the first concrete pipe segment 1. The plurality of first prestressed anchor bolts 21 of each tower pipe segment assembly connect the first concrete pipe segment 1 of the tower pipe segment assembly with the first concrete pipe segment 1 of another tower pipe segment assembly adjacent thereto.

[0128] The bottommost tower pipe segment assembly further includes a plurality of second prestressed anchor bolts 22 located on the first flange portion 11 at the bottom end of the first concrete pipe segment 1 , and the second prestressed anchor bolts 22 connect the first concrete pipe segment 1 with the second concrete pipe segment 3 .

[0129] Preferably, in the vertical direction, the pipe sections of the lower part of the tower are the tower foundation 5 and the second concrete pipe sections 3, and the pipe sections of the upper part of the tower are the multiple first concrete pipe sections 1 and the transfer pipe sections 4. The first concrete pipe sections 1 enable the upper part of the tower to have a smaller lateral size and deadweight, so that the tower has an ideal second-order frequency, thereby avoiding safety hazards caused by resonance with the wind turbine.

[0130] Reference below Figure 1-Figure 8 The tower construction process according to an embodiment of the present invention is described.

[0131] like Figure 1-Figure 8 As shown, the tower construction process of the embodiment of the present invention is based on the tower of the embodiment of the present invention. The tower construction process includes setting a second concrete pipe segment 3 on the tower foundation 5. A plurality of tower pipe segment assemblies are set on the second concrete pipe segment 3, and the first concrete pipe segments 1 of the plurality of tower pipe segment assemblies are arranged in sequence in the vertical direction. A transfer pipe segment 4 is set on the topmost tower pipe segment assembly.

[0132] The tower construction process of the embodiment of the present invention is used to install the tower of the embodiment of the present invention, so that the tower obtained by construction has higher safety performance, can avoid safety hazards caused by resonance with the wind turbine set, and at the same time has strong safety and stability during the installation process, so as to have higher installation efficiency and be able to be constructed in more complex environments.

[0133] In some embodiments, the tower construction process includes leveling and applying adhesive to the top surface of the second concrete pipe segment 3 after the second concrete pipe segment 3 is arranged on the tower foundation 5. The adhesive on the top surface of the second concrete pipe segment 3 forms a first adhesive layer on the bottom surface of the first concrete pipe segment 1 of the tower pipe segment assembly arranged at the bottom.

[0134] One of the first concrete pipe segments 1 is suspended on the second concrete pipe segment 3 to serve as the first concrete pipe segment 1 of the bottommost tower pipe segment assembly. Then, multiple prestressed anchor bolts 2 are installed on the second concrete pipe segment 3 and the first concrete pipe segment 1 thereon, specifically, multiple second prestressed anchor bolts 22 are installed on the second concrete pipe segment 3 and the bottom first flange 11 of the bottom end of the bottommost first concrete pipe segment 1, and multiple prestressed anchor bolts 2, specifically multiple second prestressed anchor bolts 22 are tensioned to the required preload force. Then, anti-corrosion grease is filled into the gap outside each prestressed anchor bolt 2, specifically the second prestressed anchor bolt 22. The gap outside the second prestressed anchor bolt 22 includes the gap between the second prestressed anchor bolt 22 and the inner circumference of the corresponding connecting hole 111, and further includes the gap between the second prestressed anchor bolt 22 and the inner circumference of the first socket.

[0135] The remaining first concrete pipe sections 1 are sequentially suspended on the previous first concrete pipe section 1. In other words, the second first concrete pipe section 1 is suspended on the bottom first concrete pipe section 1, and the third first concrete pipe section 1 is suspended on the second first concrete pipe section 1, until all the first concrete pipe sections 1 are suspended. The first concrete pipe section 1 with the second flange 12 is suspended last, so that the first concrete pipe section 1 with the second flange 12 is the top first concrete pipe section 1 among all the first concrete pipe sections 1. Before each suspension of the first concrete pipe section 1, the top surface of the previous first concrete pipe section 1 is leveled and adhesive is applied to form a first adhesive layer on the top of the previous first concrete pipe section 1. After each hanging of the first concrete pipe segment 1, multiple prestressed anchor bolts 2 are installed on the hung first concrete pipe segment 1 and the previous first concrete pipe segment 1, specifically, multiple first prestressed anchor bolts 21 are inserted into the bottom first flange 11 of the hung first concrete pipe segment 1 and the top first flange 11 of the previous first concrete pipe segment 1, and multiple prestressed anchor bolts 2, specifically the first prestressed anchor bolts 21 are tensioned to the required preload force, and then anti-corrosion grease is filled into the gap outside each prestressed anchor bolt 2, specifically the first prestressed anchor bolt 21. The gap outside the first prestressed anchor bolt 21 is the gap between the first prestressed anchor bolt 21 and the inner circumference of the corresponding two connection holes 111.

[0136] It should be noted that the previous first concrete pipe segment 1 is the first concrete pipe segment 1 located above the first concrete pipe segment 1 being hoisted in the hoisting sequence. On the tower, the first concrete pipe segment 1 is located above the previous first concrete pipe segment 1 .

[0137] The top surface of the topmost first concrete pipe segment 1 is leveled and coated with adhesive to form a second adhesive layer on the top of the topmost first concrete pipe segment 1. The transfer pipe segment 4 is suspended on the topmost first concrete pipe segment 1, and then a plurality of prestressed anchor bolts 2 are installed on the transfer pipe segment 4 and the topmost first concrete pipe segment 1, specifically, a plurality of third prestressed anchor bolts 23 are passed through the top first flange 11 of the topmost first concrete pipe segment 1 and the bending portion of the transfer pipe segment 4, and a plurality of prestressed anchor bolts 2, specifically the third prestressed anchor bolts 23 are tensioned to the required preload force, and then the gap outside each prestressed anchor bolt 2, specifically the third prestressed anchor bolt 23, is filled with anti-corrosion grease. The gap outside the third prestressed anchor bolt 23 includes the gap between the third prestressed anchor bolt 23 and the inner circumference of the corresponding connection hole 111, and the gap between the third prestressed anchor bolt 23 and the bending portion of the transfer pipe segment 4.

[0138] Furthermore, the prestressed anchor bolt 2 is installed by an operator on a working platform, and the working platform is located in the inner cavity of the tower, and 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.

[0139] Furthermore, when the prestressed anchor bolt 2 is tensioned, the lower end of the prestressed anchor bolt 2 is first fixed, and then the prestressed anchor bolt 2 is tensioned upwards, so as to facilitate the operation of the operator.

[0140] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0141] In addition, the terms "first" and "second" are only used for distinction, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0142] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0143] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0144] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0145] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

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

2. The tower tube segment assembly according to claim 1, characterized in that: The prestressed anchor bolt (2) comprises a first prestressed anchor bolt (21), and the other pipe sections comprise the first concrete pipe section (1). The first prestressed anchor bolt (21) is used to penetrate and connect adjacent first flange parts (11), and adjacent first flange parts (11) are respectively located at the corresponding first concrete pipe sections (1) in adjacent first concrete pipe sections (1), so that a plurality of the first prestressed anchor bolts (21) connect adjacent first concrete pipe sections (1).

3. The tower tube segment assembly according to claim 2, characterized in that: The prestressed anchor bolt (2) includes a second prestressed anchor bolt (22), and the other pipe segments include a second concrete pipe segment (3). One end of the second prestressed anchor bolt (22) is used to be inserted into the first flange portion (11), and the other end of the second prestressed anchor bolt (22) is used to be inserted into or buried in the second concrete pipe segment (3), so that a plurality of the second prestressed anchor bolts (22) connect the first concrete pipe segment (1) and the second concrete pipe segment (3) adjacent thereto.

4. The tower tube segment assembly according to claim 3, characterized in that: The first flange parts (11) are provided at both axial ends of the pipe segment body (13), and the first flange parts (11) at both ends are used to set a plurality of the first prestressed anchor bolts (21), or the first flange part (11) at one end is used to set a plurality of the first prestressed anchor bolts (21), and the first flange part (11) at the other end is used to set a plurality of second prestressed anchor bolts (22).

5. The tower tube segment assembly according to claim 1, characterized in that: At least part of the steel bars of the first concrete pipe section (1) are prestressed steel bars (14) using the pre-tensioning method.

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

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

8. The tower tube segment assembly according to claim 1, characterized in that: The extension length of the first flange portion (11) along the axial direction of the first concrete pipe segment (1) is 0.8 m to 1.2 m.

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

21.

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

11. The tower tube segment assembly according to claim 2, characterized in that: The prestressed anchor bolt (2) includes a third prestressed anchor bolt (23), the other pipe segments include a transfer pipe segment (4), the first concrete pipe segment (1) also includes a second flange portion (12) integrally connected to the pipe segment body (13), one axial end of the pipe segment body (13) is provided with the first flange portion (11), and the first flange portion (11) is used to arrange a plurality of the first prestressed anchor bolts (21), the other axial end of the pipe segment body (13) is provided with the second flange portion (12), and the second flange portion (12) is arranged on the inner circumferential surface of the pipe segment body (13), one end of a plurality of the third prestressed anchor bolts (23) is inserted or buried in the second flange portion (12), the plurality of the third prestressed anchor bolts (23) are arranged at intervals along the circumference of the first concrete pipe segment (1), and the other ends of the plurality of the third prestressed anchor bolts (23) are used to connect to the transfer pipe segment (4).

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

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

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

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

16. The tower according to claim 15, characterized in that Also includes: A tower foundation (5), a second concrete pipe section (3) and a transfer pipe section (4), wherein the second concrete pipe section (3) is arranged on the tower foundation (5), the tower pipe section assemblies are multiple, the first concrete pipe sections (1) of the multiple tower pipe section assemblies are arranged on the second concrete pipe sections (3) in sequence along the vertical direction, the transfer pipe section (4) is arranged on the topmost first concrete pipe section (1), the second concrete pipe section (3) and 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 via multiple prestressed anchor bolts (2).

17. A tower construction process, characterized in that: The tower is the tower according to claim 16, and the tower construction process includes: Arranging the second concrete pipe section (3) on the tower foundation (5); Arranging a plurality of tower tube segment assemblies on the second concrete tube segment (3), and arranging the first concrete tube segments (1) of the plurality of tower tube segment assemblies in sequence along the vertical direction; A transfer pipe joint (4) is arranged on the tower pipe joint assembly at the top.

18. The tower construction process according to claim 17, characterized in that: After the second concrete pipe section (3) is arranged on the tower foundation (5), the top surface of the second concrete pipe section (3) is leveled and an adhesive is applied; Hanging one of the first concrete pipe sections (1) on the second concrete pipe section (3), then installing a plurality of prestressed anchor bolts (2) on the second concrete pipe section (3) and the first concrete pipe section (1) thereon, tensioning the plurality of prestressed anchor bolts (2) to a required pre-tightening force, and then filling the gap outside each prestressed anchor bolt (2) with anti-corrosion grease; The remaining first concrete pipe sections (1) are sequentially suspended on the previous first concrete pipe section (1); before each suspension of the first concrete pipe section (1), the top surface of the previous first concrete pipe section (1) is leveled and the adhesive is applied; after each suspension of the first concrete pipe section (1), a plurality of prestressed anchor bolts (2) are installed on the suspended first concrete pipe section (1) and the previous first concrete pipe section (1); the plurality of prestressed anchor bolts (2) are tensioned to a required pre-tightening force, and then anti-corrosion grease is filled into the gap outside each prestressed anchor bolt (2); The top surface of the first concrete pipe section (1) at the top is leveled and coated with adhesive, the transfer pipe section (4) is hung on the first concrete pipe section (1) at the top, and then a plurality of prestressed anchor bolts (2) are installed on the transfer pipe section (4) and the first concrete pipe section (1) at the top, and the plurality of prestressed anchor bolts (2) are tensioned to a required pre-tightening force, and then anti-corrosion grease is filled into the gap outside each prestressed anchor bolt (2).

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