Tower drum structure of wind power mixed tower and prefabrication, installation and construction method of tower drum structure

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By setting index channel holes and connecting pipe bodies in the wind power tower structure, and using the method of splicing of variable diameter adapter cylinders and semicircular sections, the difficulty of wind power tower structures during processing and installation is solved, low-cost and efficient tower installation is achieved and the stability and service life of the tower is improved.

CN119982351APending Publication Date: 2025-05-13CHINA FIRST HIGHWAY ENGINEERING CO LTD +2

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Patent Information

Application Number: CN202510102227.5
Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner
Filing Date: 2025-01-22
Publication Date: 2025-05-13

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Abstract

The wind power mixed tower drum structure comprises a tower drum body, index channel holes penetrating and communicating from the top end to the bottom end are formed in the inner circumference of the tower drum body, connecting pipe bodies are arranged in the index channel holes, and the tower drum body comprises an upper tower drum body and a lower tower drum body; the lower end of the upper tower barrel body is connected with the upper end of the upper tower barrel body through a first reducing adapter barrel, the upper tower barrel is formed by vertically stacking and splicing multiple sections of first tower barrel bodies, the lower tower barrel body is formed by stacking and splicing multiple sections of second tower barrel bodies, and each section of second tower barrel body is formed by vertically connecting multiple sections of tower barrels. And each section of tower drum is formed by mutually and transversely connecting a first semicircular section and a second semicircular section. According to the invention, transportation and rapid assembly are convenient, the cost and the use and maintenance cost are low, the stability and rigidity of the mixed tower structure after being stressed are effectively enhanced, and the service life of the tower is prolonged.

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Description

Technical Field

[0001] The present invention belongs to the technical field of wind power towers, and in particular relates to a wind power hybrid tower barrel structure and a prefabricated installation construction method thereof. Background Art

[0002] With the gradual consumption of global energy, wind power as a renewable energy generation technology has achieved unprecedented rapid development. As the most common construction structure of wind power generation equipment, the mixed tower is mainly a reinforced concrete structure or a steel tower structure. In order to better capture wind energy, the wind power tower is usually designed to be very high. At the same time, in order to improve the stability and fatigue resistance of the tower, the wall thickness and diameter of the wind power tower are usually designed to be very large. In order to avoid the swing frequency of the vertically set tower falling into the working frequency of the wind turbine and causing resonance, the diameter of a large unit is usually more than 4 meters, and the wall thickness is more than 60 mm. Such a large mixed tower structure is extremely difficult to process and install, and it is inconvenient to transport, which increases the cost of power generation in disguise. As the height of the tower continues to increase, the requirements for the stiffness and stability of the tower are also increasing. The tower structure in the relevant technology has gradually become difficult to meet the construction requirements of a higher tower. For this reason, at this stage, there is an urgent need for a wind power mixed tower with a simple structure, convenient processing, and simple installation and construction. Summary of the invention

[0003] The purpose of the present invention is to provide a wind power hybrid tower structure and its prefabrication and installation construction method. The wind power hybrid tower structure of the present invention is not only convenient for transportation and quick assembly, but also has low cost of use and maintenance, and can effectively enhance the stability and rigidity of the hybrid tower structure after being stressed, which is conducive to improving the service life of the tower. In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0004] According to one aspect of the present invention, a wind power hybrid tower structure is provided, the wind power hybrid tower structure comprises a tower body, an index channel hole penetrating and communicating from the top end to the bottom end is arranged on the inner circumference of the tower body, a connecting pipe body is arranged in the index channel hole, the tower body comprises an upper tower body and a lower tower body, the lower end of the upper tower body and the upper end of the upper tower body are connected to each other through a first diameter-reducing adapter tube, the upper tower is formed by vertically stacking and splicing multiple sections of first tower bodies, the lower tower body is formed by stacking and splicing multiple sections of second tower bodies, each section of the second tower body is formed by vertically connecting multiple sections of towers, each section of the first tower body and each section of the second tower body are vertically plugged into each other through a connecting pipe body, and each section of the tower is formed by horizontally connecting a first semicircular section and a second semicircular section.

[0005] The above scheme is further preferred, each section of the first tower barrel is connected by a second reducing adapter cylinder, each section of the second tower barrel is spliced with each other by a third adapter cylinder, and a plurality of index channel holes penetrating downward and connected are respectively arranged inside each section of the first tower barrel 10, the second tower barrel, the first reducing adapter cylinder, the second reducing adapter cylinder, and the third adapter cylinder.

[0006] The above scheme is further preferred that a plurality of splicing connectors are respectively arranged between the top and bottom ends of the first semicircular segment and the second semicircular segment, and both ends of the splicing connectors are respectively fixedly arranged inside the first semicircular segment and the second semicircular segment.

[0007] The above scheme is further preferred, in which a plurality of serial connection holes distributed from top to bottom are arranged on the connecting section I of the first semicircular segment and the connecting section III of the second semicircular segment, and a plurality of splicing connectors distributed from top to bottom are arranged on the connecting section II of the first semicircular segment 201 and the connecting section IV of the second semicircular segment; the connecting section II of the first semicircular segment is connected to the serial connection holes on the connecting section III through the splicing connector, and the connecting section IV of the second semicircular segment is connected to the serial connection holes on the connecting section I through the splicing connector.

[0008] The above scheme is further preferred, in which strip-shaped recessed grooves are respectively arranged horizontally or vertically on the connecting section I, the connecting section II, the connecting section III, and the connecting section IV, and the depth of the strip-shaped recessed grooves does not exceed 5 mm, the width does not exceed 4 mm, and the length does not exceed 15 mm.

[0009] The above scheme is further preferred, that the splicing connecting part includes a pre-embedded connecting rod, a pre-embedded connecting tube and a splicing rod, the pre-embedded connecting rod is arranged in the connecting section I or the connecting section II of the first semicircular segment, the pre-embedded connecting tube is connected to the end of the embedded connecting rod close to the side of the first semicircular segment cross section, the pre-embedded connecting rod is arranged in the connecting section III of the second semicircular segment or the connecting section IV of the second semicircular segment, the pre-embedded connecting tube is connected to the end of the embedded connecting rod close to the side of the cross section of the second semicircular segment, one end of the pre-embedded connecting tube is fixedly connected to the connecting end of the pre-embedded connecting rod, one end of the splicing rod is connected to the other end of the pre-embedded connecting tube, and the other end of the splicing rod is inserted into the serial hole.

[0010] The above scheme is further preferred, wherein the connecting pipe body comprises a pipe seat and a corrugated pipe body, the pipe seat is conical, and has a plug-in portion at the top of the pipe seat, the upper outer wall of the plug-in portion is connected to the interior of the corrugated pipe body, and the top of the corrugated pipe body inside the first tower barrel of the lower section is plugged into the lower end of the pipe seat inside the first tower barrel of the upper section.

[0011] According to another aspect of the present invention, the present invention provides a prefabrication and installation construction method for a wind turbine hybrid tower structure. The prefabrication and installation construction method comprises the following steps:

[0012] Step 1: transport the upper tower, the first semicircular section, and the second semicircular section to the wind tower installation site, and then splice the first semicircular section and the second semicircular section to form a second tower body;

[0013] Step 2: hoist the first lower tower section onto the tower foundation, connect the index channel hole in the first lower tower section with the grouting hole on the tower foundation through the connecting pipe body, and then fix the first lower tower section onto the tower foundation;

[0014] Step 3: Insert the steel strand upward into each connecting tube body at the bottom end of the first lower tower tube, install the remaining lower tower tubes in sequence at the top end of the first lower tower tube, install the first diameter-reducing adapter tube at the top end of the last lower tower tube, and then stack and splice the first tower tube body in sequence to form an upper tower tube body, and when the upper tower tube body and the lower tower tube body are stacked and spliced to form a tower body, the connecting tube bodies in the tower body are plugged and connected to each other. During the installation process, insert the steel strand upward into the connecting tube body in sequence until the top end of the tower body is passed out;

[0015] Step 4: After adjusting the prestress of the steel strands that pass through the connecting pipe from the top to the bottom of the tower body and fixing them with anchor piles, pump cement slurry from bottom to top into the connecting pipe that passes through the tower body through the grouting holes on the tower foundation until the cement slurry gradually rises to the top of the tower body. The installation is completed after the cement slurry is completely solidified.

[0016] In the above scheme, further preferably, splicing the first semicircular segment and the second semicircular segment to form the second tower body comprises the following steps:

[0017] Install a splicing rod on the embedded connection tube in the first semicircular section and the second semicircular section, so that one end of the splicing rod is connected to the embedded connection tube;

[0018] Lift the second semicircular segment and place it close to the first semicircular segment for splicing, insert the other end of the splicing rod into the corresponding serial connection hole, so that two reserved gaps along the axis direction are formed between the connecting section I and the connecting section IV, between the connecting section II, and between the connecting section III and the connecting section IV;

[0019] Sealing plates are respectively arranged on both sides of the two reserved gaps, which are close to the inner and outer walls of the first semicircular section and the second semicircular section. Then, the sealing plates are filled with concrete slurry, which is solidified in the reserved gaps to form a complete second tower body.

[0020] In summary, the present invention adopts the above technical solution, and the present invention has the following technical effects:

[0021] The wind power hybrid tower structure of the present invention can be prefabricated in sections or pieces in the factory and transported to the installation site for installation, which is not only convenient for transportation and quick assembly, but also has low cost of operation and maintenance. The wind power hybrid tower structure of the present invention has prestressed tensioned steel strand tower sections evenly arranged around the circumference to apply secondary tension, which can effectively enhance the stability of the hybrid tower structure after being subjected to force. The rigidity and stability are much greater than those of the steel structure tower, which is beneficial to increasing the service life of the tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of a wind power hybrid tower structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the overall internal structure of a wind power hybrid tower structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the overall structure of the second tower body of the present invention;

[0025] Figure 4 is a schematic diagram of the internal structure of the second tower body of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the splicing connector of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the connecting pipe body of the present invention;

[0028] In the accompanying drawings, an upper tower body 1, a lower tower body 2, a first reducer adapter cylinder 3, a first tower body 10, a second reducer adapter cylinder 11, a second tower body 20, a third adapter cylinder 21, a tower body 100, an index channel hole 101, a connecting pipe body 102, a tower 200, a first semicircular segment 201, a second semicircular segment 202, a connecting section I 201a, a connecting section II 204, a connecting section III 202a, a connecting section IV 202b, a serial hole 203, a splicing connector 205, a strip-shaped recessed groove 206, a pre-buried connecting rod 2051, a pre-buried connecting cylinder 2052, a splicing rod 2053, a pipe seat 1020, a corrugated pipe body 1021, and a plug-in portion 1022. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are only for the purpose of enabling the reader to have a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.

[0030] Combination Figure 1As shown, according to a wind power hybrid tower structure of the present invention, the wind power hybrid tower structure includes a tower body 100, an index channel hole 101 penetrating and communicating from the top to the bottom is arranged on the inner circumference of the tower body 100, and a connecting pipe body 102 is arranged in the index channel hole 101, the tower body 100 includes an upper tower body 1 and a lower tower body 2, the lower end of the upper tower body 1 and the upper end of the upper tower body 2 are connected to each other through a first diameter-reducing adapter tube 3, the upper tower 1 is formed by vertically stacking and splicing multiple sections of first tower bodies 10, the lower tower body 2 is formed by stacking and splicing multiple sections of second tower bodies 20, each section of the second tower body 20 is formed by vertically connecting multiple sections of towers 200, each section of the first tower body 10 and each section of the second tower body 20 are vertically plugged into each other through the connecting pipe body 102, and each section of the tower 200 is formed by horizontally connecting a first semicircular section 201 and a second semicircular section 202;The connecting pipe body 102 includes a pipe seat 1020 and a corrugated pipe body 1021. The pipe seat 1020 is conical, and the center of the pipe seat 1020 is hollow. The central inner wall of the pipe seat 1020 has an internal thread connected to the outside of the corrugated pipe body 1021. A plug-in portion 1022 is provided at the top of the pipe seat 1020. The upper end outer wall of the plug-in portion 1022 is connected to the inside of the corrugated pipe body 1021. The plug-in portion 1022 is a cylindrical body that can be matched and inserted into the inside of the corrugated pipe body 1021. In the upper tower tube 1 formed by vertically stacking and splicing up and down, each section The top of the corrugated tube body 1021 inside a tower barrel 10 is plugged into the lower end of the tube seat 1020 inside the first tower barrel 10 of the upper section, and the corrugated tube body 1021 inside the first tower barrel 10 below extends upward to be plugged into the tube seat 1020 at the bottom of the first tower barrel 10 above, so that the top of the corrugated tube body 1021 extends into the tube seat 1020 at the bottom of the first tower barrel 10 of the upper section. Similarly, the top of the corrugated tube body 1021 inside the second tower barrel 20 of each section is plugged into the tube seat 1020 inside the second tower barrel 20 of the upper section. Inside the lower end of 020, the first tower barrel 10 between the upper and lower sections or the second tower barrel 20 between the upper and lower sections are plugged into each other through the connecting pipe body 102 to form an integral body. When making the first tower barrel 10 or the second tower barrel 20, the pipe seat 1020 is first installed in the manufacturing model, and an index pipe body with an outer diameter larger than the pipe seat 1020 is sleeved on the top of the pipe seat 1020. When the first tower barrel 10 or the second tower barrel 20 to be made is about to solidify, the index pipe body is pulled out to form the index channel hole 101. When splicing the first tower barrel 10 or the second tower barrel 20 , first insert the corrugated tube body 1021 into the index channel hole 101 so that it is inserted on the tube seat 1020, and the first tower body 10 or the second tower body 20 between the upper and lower sections is respectively inserted through the top of the corrugated tube body 1021 into the tube seat 1020 corresponding to the inside of the first tower body 10 or the inside of the second tower body 20 at the bottom, completing the splicing of the first tower body 10 or the second tower body 20 between the upper and lower sections, and the second tower body 20 can be quickly stacked and spliced vertically to form the lower tower body 2, and the first tower body 10 can be quickly and gradually stacked on the lower tower body 2. ;

[0031] In the present invention, each section of the first tower barrel 10 is connected by a second diameter-reducing adapter cylinder 11, and each section of the second tower barrel 20 is spliced with each other by a third adapter cylinder 21. A plurality of index channel holes 101 that penetrate downward and communicate are respectively arranged inside each section of the first tower barrel 10, the second tower barrel 20, the first diameter-reducing adapter cylinder 3, the second diameter-reducing adapter cylinder 11, and the third adapter cylinder 21. The first semicircular segment 201 and the second semicircular segment 202 are horizontally spliced to form a section of the second tower barrel 20. The second tower barrel 20 can be set to different diameters or different heights. After the cylinders 20 are gradually spliced to form a certain height, the third transition cylinder 21 is used to continue vertically splicing the second tower cylinder 20 with a smaller diameter, and then the first variable-diameter transition cylinder 3 is used to gradually stack and splice the upper tower cylinder 1 vertically upward, and the upper tower cylinder 1 and the lower tower cylinder 2 are connected until the tower body 100 is completed. In the process of vertically splicing upward, the first tower cylinder 10 and the second tower cylinder 20 are connected through the connecting pipe body 102 set through the index channel hole 101 to form an interconnected whole. During the tower installation process, the steel strand is shuttled through the connecting pipe body 102 to strengthen the prestress of the tower.

[0032] In the present invention, a plurality of splicing connectors 205 are respectively arranged between the top and bottom ends of the first semicircular segment 201 and the second semicircular segment 202, and the two ends of the splicing connectors 205 are respectively fixedly arranged inside the first semicircular segment 201 and the second semicircular segment 202, and a plurality of serial connection holes 203 distributed from top to bottom are arranged on the connecting section I201a of the first semicircular segment 201 and the connecting section III202a of the second semicircular segment 202, and a plurality of splicing connectors 205 distributed from top to bottom are arranged on the connecting section II204 of the first semicircular segment 201 and the connecting section IV202b of the second semicircular segment 202; The connection section II204 of the first semicircular segment 201 is connected to the serial connection hole 203 on the connection section III202a through a splicing connector 205, and the connection section IV202b of the second semicircular segment 202 is connected to the serial connection hole 203 on the connection section I201a through a splicing connector 205; a strip-shaped concave groove 206 is respectively arranged horizontally or vertically on the connection section I201a, the connection section II204, the connection section III202a, and the connection section IV202b, and the depth of the strip-shaped concave groove 206 does not exceed 5mm, the width does not exceed 4mm, and the length does not exceed 15mm; when the second semicircular segment 202 is connected to the first semicircular segment 20 When the tower 200 is formed by horizontal splicing, the splicing connector 205 is inserted into the corresponding serial hole 203 and the serial hole 203 of the second semicircular segment 202, so that a reserved gap 207a is formed between the cross sections where the second semicircular segment 202 and the first semicircular segment 201 are spliced and contacted with each other. After the blocking plates 207 are respectively used to cling and fix to the inner and outer walls of the first semicircular segment 201 and the second semicircular segment 202 close to each other on the inner and outer sides of the reserved gap, the reserved gap 207a blocked by the blocking plates 207 is filled with concrete slurry. During the process of pouring concrete slurry into the reserved gap 207a, the concrete slurry can penetrate The concrete slurry is inserted into the serial connection hole 203 and the embedded connection tube 2052 and filled in the strip-shaped recessed groove 206, so that the filled concrete slurry can fasten and splice the first semicircular section 201 and the second semicircular section 202 together. After the concrete solidifies, a complete section of the tower 200 is formed, which can improve the strength of the splicing connection between the connection section I 201a and the connection section IV 202b and between the connection section II 204 and the connection section III 202a. To this end, the tower 200 is formed by quickly and horizontally splicing the first semicircular section 201 and the second semicircular section 202. The splicing and installation construction is simple, which can greatly improve the transportation capacity of the wind power hybrid tower.

[0033] In the embodiment of the present invention, when the tower 200 is vertically cut along the axial direction to form the first semicircular section 201 and the second semicircular section 202, the connection section I201a of the first semicircular section 201 and the connection section IV202b of the second semicircular section 202 and the connection section II204 of the first semicircular section 201 and the connection section III202a of the second semicircular section 202 are connected by splicing connectors 205, so that the first semicircular section 201 and the second semicircular section 202 are initially positioned and spliced; the splicing connector 205 includes a pre-buried connecting rod 2051, a pre-buried connecting tube 2052 and a splicing rod 2053, and the first semicircular section 201 and the second semicircular section 202 are connected by splicing connectors 205. A pre-buried connecting rod 2051 is arranged in the connecting section I201a or the connecting section II204 of the circular segment 201, and a pre-buried connecting tube 2052 is connected to the end of the buried connecting rod 2051 on one side of the first semicircular segment 201 section (connecting section II204) (the buried connecting tube 2052 is buried in the connecting section II204 of the first semicircular segment 201, and a plug-in interface for plugging in the splicing rod 2053 is formed between the connecting port of the buried connecting tube 2052 and the surface of the connecting section II204), and a pre-buried connecting rod 2051 is arranged in the connecting section III202a of the second semicircular segment 202 or the connecting section IV202b of the second semicircular segment 202. 51, the end of the embedded connecting rod 2051 on the side of the cross section close to the second semicircular segment 202 is connected with the embedded connecting tube 2052 (the embedded connecting tube 2052 is embedded in the connecting section IV202b of the second semicircular segment 202, and the connecting port of the embedded connecting tube 2052 and the surface of the connecting section IV202b also form an interconnected plug interface for plugging the splicing rod 2053), one end of the embedded connecting tube 2052 is fixedly connected to the connecting end of the embedded connecting rod 2051, and one end of the embedded connecting rod 2051 is connected to one end of the embedded connecting tube 2052, and then they are respectively embedded in the first semicircular segment 201 and the second semicircular segment 202, so that One end of the splicing rod 2053 is connected to the other end of the embedded connecting tube 2052, and the other end of the splicing rod 2053 is inserted into the serial hole 203; the embedded connecting rod 2051 has a bent end 2051a, and the bent end 2051a is bent at 90°. The connecting end of the embedded connecting rod 2051 extends along the direction of the connecting section IV202b of the first semicircular segment 201 or the direction of the connecting section II204 of the second semicircular segment 202 and is connected to the embedded connecting tube 2052. The bent end 2051a of the embedded connecting rod 2051 is fixedly connected to the steel frame in the first semicircular segment 201 and the steel frame in the second semicircular segment 202, respectively.

[0034] In the present invention, Figure 6As shown, the connecting pipe body 102 is respectively arranged along the axial direction in the side wall of each section of the first tower barrel 10 and the side wall of each section of the second tower barrel 20. The connecting pipe body 102 includes a pipe seat 1020 and a corrugated pipe body 1021. The pipe seat 1020 is conical and has a plug-in portion 1022 at the top of the pipe seat 1020. The upper end outer wall of the plug-in portion 1022 is connected to the inside of the corrugated pipe body 1021. The top of the corrugated pipe body 1021 in the first tower barrel 10 of the lower end is plugged into the lower end of the pipe seat 1020 in the first tower barrel 10 of the upper end. Similarly, the top of the corrugated pipe body 1021 in the second tower barrel 20 of the lower end is plugged into the pipe seat 1021 in the second tower barrel 20 of the upper end. Inside the lower end of 20, when the bottom of the upper section of the first tower body 10 and the top of the lower section of the first tower body 10 are spliced together, the top of the corrugated tube body 1021 is inserted into the conical tube seat 1020 in the bottom of the upper section of the first tower body 10, and when the bottom of the upper section of the second tower body 20 and the top of the lower section of the first tower body 10 are spliced together, the top of the corrugated tube body 1021 inside the second tower body 20 is inserted into the conical tube seat 1020 in the bottom of the upper section of the first tower body 10, so that the vertical stacking splicing can be completed quickly, and the corrugated tube body 1021 in the first tower body 10 and the corrugated tube body 1021 in the second tower body 20 can be connected to each other.

[0035] According to another aspect of the present invention, the present invention provides a prefabricated installation construction method for a wind turbine hybrid tower structure, the installation method comprising the following steps:

[0036] Step 1: transport the upper tower 1, the first semicircular section 201, and the second semicircular section 202 to the wind tower installation site, and then splice and connect the first semicircular section 201 and the second semicircular section 202 to form the second tower body 20; in the embodiment of the present invention, Figure 2 and Figure 3 As shown, splicing and connecting the first semicircular segment 201 and the second semicircular segment 202 to form the second tower body 20 includes the following steps:

[0037] Step 10, respectively install the splicing rod 2053 on the embedded connection tube 2052 in a vertical section of the first semicircular segment 201 and in a vertical section of the second semicircular segment 202, so that one end of the splicing rod 2053 is connected to the embedded connection tube 2052;

[0038] Step 11, hoist the second semicircular section 202 and bring it close to the first semicircular section 201, insert the other end of the splicing rod 2053 into the corresponding serial hole 203, and form two reserved gaps 207a along the axial direction between the connecting section I 201a and the connecting section IV 202b and between the connecting section III 202a and the connecting section IV 202b;

[0039] Step 12, on both sides of the two reserved gaps, sealing plates 207 are respectively arranged to be close to the inner and outer walls of the first semicircular segment 201 and the second semicircular segment 202, and then the sealing plates 207 are filled with concrete slurry, so that the concrete slurry solidifies in the reserved gap 207a to form a complete second tower body 20, and in the process of pouring concrete slurry into the reserved gap 207a, the concrete slurry can penetrate into the serial hole 203 and the embedded connecting tube 2052, so that the first semicircular segment 201 and the second semicircular segment 202 can be fastened and spliced together;

[0040] Step 2: hoist the first lower tower section 2 onto the tower foundation, connect the index channel hole 102 in the first lower tower section 2 with the grouting hole on the tower foundation through the connecting pipe body 102, and then fix the first lower tower section 2 onto the tower foundation;

[0041] Step 3: Insert the steel strand upward into each connecting pipe body 102 at the bottom end of the first lower tower tube 2, install the remaining lower tower tubes 2 in sequence at the top of the first lower tower tube 2, install the first diameter-reducing adapter tube 3 at the top of the last lower tower tube 2, and then stack and splice the first tower tube body 10 in sequence to form the upper tower tube body 1, and when the upper tower tube body 1 and the lower tower tube body 2 are stacked and spliced to form the tower body 100, the connecting pipe bodies 102 in the tower body 100 are plugged and connected to each other. During the installation process, insert the steel strand upward in the connecting pipe body 102 in sequence until it passes out from the top of the tower body 100;

[0042] Step 4: After adjusting the prestress of the steel strands passing through the connecting pipe body 102 from the top to the bottom of the tower body 100 and fixing them with anchor piles, pump cement slurry from bottom to top into the connecting pipe body 102 passing through the tower body 100 through the grouting holes on the tower foundation until the cement slurry gradually rises to the top of the tower body 100. The installation is completed after the cement slurry is completely solidified.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A wind power hybrid tower structure, characterized in that: The wind power hybrid tower structure comprises a tower body (100), an index channel hole (101) penetrating and communicating from the top to the bottom is arranged on the inner circumference of the tower body (100), a connecting pipe body (102) is arranged in the index channel hole (101), the tower body (100) comprises an upper tower body (1) and a lower tower body (2), the lower end of the upper tower body (1) and the upper end of the upper tower body (2) are connected to each other via a first diameter-reducing adapter tube (3), and the upper tower body (1) is composed of a plurality of The first tower barrel sections (10) are vertically stacked and spliced, the lower tower barrel section (2) is formed by stacking and splicing multiple second tower barrel sections (20), each second tower barrel section (20) is formed by multiple tower barrel sections (200) vertically connected to each other, each first tower barrel section (10) and each second tower barrel section (20) are vertically plugged into each other through a connecting pipe body (102), and each tower barrel section (200) is formed by a first semicircular section (201) and a second semicircular section (202) being horizontally connected to each other.

2. A wind turbine hybrid tower structure according to claim 1, characterized in that: Each section of the first tower barrel (10) is connected via a second diameter-reducing adapter cylinder (11), and each section of the second tower barrel (20) is spliced with each other via a third adapter cylinder (21). A plurality of index channel holes (101) penetrating downward and communicating with each other are respectively arranged inside each section of the first tower barrel (10), the second tower barrel (20), the first diameter-reducing adapter cylinder (3), the second diameter-reducing adapter cylinder (11), and the third adapter cylinder (21).

3. According to claim 1, a wind turbine hybrid tower structure is characterized by: A plurality of splicing connectors (205) are respectively arranged between the top and bottom ends of the first semicircular segment (201) and the second semicircular segment (202), and the two ends of the splicing connectors (205) are respectively fixedly arranged inside the first semicircular segment (201) and the second semicircular segment (202).

4. A wind turbine hybrid tower structure according to claim 3, characterized in that: A plurality of serial connection holes (203) distributed from top to bottom are arranged on the connection section I (201a) of the first semicircular segment (201) and the connection section III (202a) of the second semicircular segment (202), and a plurality of splicing connectors (205) distributed from top to bottom are arranged on the connection section II (204) of the first semicircular segment (201) and the connection section IV (202b) of the second semicircular segment (202); the connection section II (204) of the first semicircular segment (201) is connected to the serial connection hole (203) on the connection section III (202a) through the splicing connector (205), and the connection section IV (202b) of the second semicircular segment (202) is connected to the serial connection hole (203) on the connection section I (201a) through the splicing connector (205).

5. A wind turbine hybrid tower structure according to claim 4, characterized in that: Strip-shaped recessed grooves (206) are respectively arranged horizontally or vertically on the connecting section I (201a), the connecting section II (204), the connecting section III (202a), and the connecting section IV (202b), and the depth of the strip-shaped recessed grooves (206) does not exceed 5 mm, the width does not exceed 4 mm, and the length does not exceed 15 mm.

6. A wind turbine hybrid tower structure according to claim 3, characterized in that: The splicing connector (205) comprises a pre-buried connecting rod (2051), a pre-buried connecting tube (2052) and a splicing rod (2053). The pre-buried connecting rod (2051) is arranged in the connecting section I (201a) or the connecting section II (204) of the first semicircular segment (201). The pre-buried connecting tube (2052) is connected to the end of the buried connecting rod (2051) close to the cross section of the first semicircular segment (201). A pre-buried connecting rod (2051) is provided in the connecting section IV202b of the segment 202, and a pre-buried connecting tube (2052) is connected to the end of the buried connecting rod (2051) on the side of the cross section close to the second semicircular segment (202), one end of the pre-buried connecting tube (2052) is fixedly connected to the connecting end of the pre-buried connecting rod (2051), one end of the splicing rod (2053) is connected to the other end of the pre-buried connecting tube (2052), and the other end of the splicing rod (2053) is inserted into the serial connection hole (203).

7. The wind turbine hybrid tower structure according to claim 1, characterized in that: The connecting pipe body (102) comprises a pipe seat (1020) and a corrugated pipe body (1021); the pipe seat (1020) is conical in shape and has a plug-in portion (1022) at the top end of the pipe seat (1020); the upper end outer wall of the plug-in portion (1022) is connected to the inside of the corrugated pipe body (1021); the top of the corrugated pipe body (1021) inside the first tower barrel (10) of the lower end section is plugged into the lower end of the pipe seat (1020) inside the first tower barrel (10) of the upper end section.

8. A method for prefabrication and installation of a wind turbine hybrid tower structure according to any one of claims 1 to 7, characterized in that: The prefabrication installation construction method comprises the following steps: Step 1: transporting the upper tower (1), the first semicircular section (201), and the second semicircular section (202) to a wind tower installation site, and then splicing the first semicircular section (201) and the second semicircular section (202) to form a second tower body (20); Step 2: hoisting the first lower tower section (2) onto the tower foundation, connecting the index channel hole (102) in the first lower tower section (2) with the grouting hole on the tower foundation through the connecting pipe body (102), and then fixing the first lower tower section (2) onto the tower foundation; Step 3: at the bottom end of the first lower tower tube (2), a steel strand is inserted upwardly into each connecting tube body (102); the remaining lower tower tubes (2) are installed in sequence at the top end of the first lower tower tube (2); the first diameter-reducing adapter tube (3) is installed at the top end of the last lower tower tube (2); and then the first tower tube body (10) is stacked and spliced in sequence to form an upper tower tube body (1); and when the upper tower tube body (1) and the lower tower tube body (2) are stacked and spliced to form a tower body (100), the connecting tube bodies (102) in the tower body (100) are plugged and connected to each other. During the installation process, the steel strand is inserted upwardly into the connecting tube body (102) in sequence until it passes out from the top end of the tower body (100); Step 4: After adjusting the prestress of the steel strands passing through the connecting pipe body (102) from the top to the bottom of the tower body (100) and fixing them with anchor piles, pump cement slurry from bottom to top into the connecting pipe body (102) passing through the tower body (100) through the grouting holes on the tower foundation until the cement slurry gradually rises to the top of the tower body (100), and the installation is completed after the cement slurry is completely solidified.

9. The prefabrication and installation construction method of a wind turbine hybrid tower structure according to claim 8, characterized in that: Splicing the first semicircular segment (201) and the second semicircular segment (202) to form the second tower body (20) comprises the following steps: Installing a splicing rod (2053) on the embedded connection tube (2052) in the cross section of the first semicircular segment (201) and the cross section of the second semicircular segment (202), so that one end of the splicing rod (2053) is connected to the embedded connection tube (2052); The second semicircular section (202) is hoisted and placed close to the first semicircular section (201) for splicing, and the other end of the splicing rod (2053) is inserted into the corresponding serial connection hole (203), so that two reserved gaps along the axis direction are formed between the connecting section I (201a) and the connecting section IV 202b and between the connecting section II (204) and between the connecting section III (202a) and the connecting section IV (202b); Sealing plates are respectively arranged on both sides of the two reserved gaps, tightly attached to the inner and outer walls of the first semicircular section (201) and the second semicircular section (202), and then the sealing plates are filled with concrete slurry, which is solidified in the reserved gaps to form a complete second tower barrel (20).