Prefabricated wind power generation tower tube structure

Abstract

The utility model relates to the technical field of wind power generation tower tube structures, in particular to a prefabricated assembly type wind power generation tower tube structure which comprises an upper prefabricated arc piece and a lower prefabricated arc piece. One end of the upper prefabricated arc piece is fixedly connected with two sets of sleeve groove assemblies, one end of the upper prefabricated arc piece is fixedly connected with two sets of locking assemblies, one end of the lower prefabricated arc piece is fixedly connected with two sets of sleeve groove assemblies, and one end of the lower prefabricated arc piece is fixedly connected with two sets of locking assemblies. The set, located on the upper prefabricated arc piece, of the locking assembly is fixedly inserted into the set, located on the lower prefabricated arc piece, of the sleeve groove assembly. According to the prefabricated assembly type wind power generation tower tube structure, the sleeve groove assemblies and the locking assemblies are arranged at the upper ends and the lower ends of the prefabricated arc pieces respectively, and the upper prefabricated arc pieces and the lower prefabricated arc pieces are rapidly and firmly connected through inserting and locking of the locking assemblies on the upper prefabricated arc pieces and the lower prefabricated arc pieces; the upper and lower prefabricated arc sheets are prevented from being pulled away in strong wind weather in the grouting material solidification waiting process.

Description

Technical Field

[0001] This utility model relates to the technical field of wind power generation tower structure, specifically a prefabricated assembled wind power generation tower structure. Background Technology

[0002] Precast concrete wind turbine towers are a new type of tower structure that uses precast concrete components in a factory and assembles them on-site. They are mainly used to support wind turbine generators. Their core feature is modular design, which divides the tower into multiple sections. After standardized production in the factory, these sections are transported to the wind farm and quickly assembled using prestressed tensioning or bolt connections.

[0003] Chinese Patent CN209228539U discloses a prefabricated assembled concrete wind turbine tower, comprising a tower, a base, a generator, and a wind turbine. The tower is composed of several prefabricated concrete sections mounted on the base. A stirring blade is located at the bottom of the tower, and a generator is located at the top, connected to the wind turbine. Each prefabricated concrete section is composed of several tower arc plates, each including bolt mounting grooves, embedded sleeves, and prestressed bolt blades. Bolt mounting grooves are provided between adjacent tower arc plates, and the prestressed bolt blades pass through these grooves and connect to the embedded sleeves. This significantly reduces the amount of grouting work required for tower connection, ensures the accuracy of tower connection and installation, and improves construction quality. Compared to steel towers, this tower offers advantages such as readily available materials, lower cost, higher rigidity, better stability, corrosion resistance, and lower maintenance costs.

[0004] The precast concrete ends of the precast concrete wind turbine towers described above and under existing technologies are mostly composed of several tower arc plates horizontally spliced ​​together by structural adhesive and arc bolts, and vertically connected by structural adhesive, integral vertical steel strands, and upper and lower arc plate grouting sleeves. However, during vertical installation, the integral vertical steel strands can only be threaded and tensioned to fix the whole structure after all arc plates are installed. During installation, the connection between the upper and lower layers relies solely on conventional positioning pins and grouting sleeves, as well as structural adhesive. In the event of severe weather such as strong winds, the grout may not solidify in time, resulting in insufficient connection between the upper and lower arc plates. The upper arc plates are easily pulled up by strong winds. Therefore, there is a lack of a corresponding structure for rapid and secure connection during the installation of the upper and lower precast arc plates, which needs to be improved and optimized. Utility Model Content

[0005] The purpose of this utility model is to provide a prefabricated assembled wind power generation tower structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A prefabricated assembled wind power tower structure includes an upper prefabricated arc plate and a lower prefabricated arc plate; the two ends of the upper prefabricated arc plate are horizontally bolted to another upper prefabricated arc plate, the two ends of the lower prefabricated arc plate are horizontally bolted to another lower prefabricated arc plate, one end of the upper prefabricated arc plate is fixedly connected to two sets of sleeve groove assemblies, one end of the upper prefabricated arc plate is fixedly connected to two sets of locking assemblies, one end of the lower prefabricated arc plate is fixedly connected to two sets of locking assemblies, and one set of locking assemblies located on the upper prefabricated arc plate is fixedly inserted into the set of sleeve groove assemblies located on the lower prefabricated arc plate.

[0007] Preferably, the upper precast arc plate has symmetrically provided transverse connecting ports at both ends, and the lower precast arc plate has symmetrically provided transverse connecting ports at both ends.

[0008] Preferably, in the transverse connection port, a group of bolts with one end located on the upper precast arc plate are connected to a transverse connection port on another upper precast arc plate, and in the transverse connection port, a group of bolts with one end located on the lower precast arc plate are connected to a transverse connection port on another lower precast arc plate.

[0009] Preferably, the sleeve groove assembly includes a sleeve groove, one end of which is provided with a plug groove, one end of which is provided with a cap groove, both ends of which are provided with threaded holes, and one end of which is provided with a grouting hole.

[0010] Preferably, one end of the threaded hole is provided with a sealing groove, and a sealing ring gasket is inserted into the sealing groove.

[0011] Preferably, the locking assembly includes a pin body, one end of which is fixedly connected to a pin cap, which is inserted into a cap groove; another end of which is fixedly connected to a plug protrusion, which is inserted into a plug groove; a locking pin hole is provided in the middle of the pin body; a fixing bolt is inserted into the locking pin hole; the fixing bolt is threaded into a threaded hole; and the fixing bolt is inserted into and pressed against a sealing ring gasket.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The prefabricated assembled wind power tower structure proposed in this utility model mainly involves setting sleeve groove components and locking components at the upper and lower ends of the prefabricated arc plates respectively. The upper and lower prefabricated arc plates are quickly and firmly connected by locking the locking component on the upper prefabricated arc plate with the plug-in locking component on the lower prefabricated arc plate, which avoids the upper and lower prefabricated arc plates being pulled apart due to strong winds during the waiting period for the grout to solidify. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of a prefabricated assembled wind power generation tower structure;

[0015] Figure 2 An exploded view of a prefabricated assembled wind power generation tower structure;

[0016] Figure 3 for Figure 2 Enlarged diagram of part A in the middle;

[0017] Figure 4 This is a partial structural cross-sectional view of a prefabricated assembled wind power generation tower structure;

[0018] Figure 5 for Figure 4 Enlarged diagram of part B in the middle;

[0019] Figure 6 This is a partial structural schematic diagram of a prefabricated assembled wind power generation tower structure;

[0020] Figure 7 for Figure 6 Enlarged diagram of part C in the middle.

[0021] In the figure: upper precast arc plate 1, lower precast arc plate 2, sleeve groove 301, plug groove 302, cap groove 303, threaded hole 304, grouting hole 305, sealing groove 306, sealing ring gasket 307, pin body 401, pin cap 402, plug protrusion 403, locking pin hole 404, fixing bolt 405, transverse connection port 5. Detailed Implementation

[0022] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Please see Figures 1 to 7 This utility model provides the following two technical solutions:

[0024] Example 1: A prefabricated assembled wind turbine tower structure includes an upper prefabricated arc plate 1 and a lower prefabricated arc plate 2; the upper prefabricated arc plate 1 is horizontally bolted to both ends of another upper prefabricated arc plate 1, and the lower prefabricated arc plate 2 is horizontally bolted to both ends of another lower prefabricated arc plate 2; one end of the upper prefabricated arc plate 1 is fixedly connected to two sets of sleeve groove assemblies, and one end of the upper prefabricated arc plate 1 is fixedly connected to two sets of locking assemblies; one end of the lower prefabricated arc plate 2 is fixedly connected to two sets of sleeve groove assemblies, and one end of the lower prefabricated arc plate 2 is fixedly connected to two sets of locking assemblies. In the locking assembly, a group located on the upper precast arc plate 1 is fixedly inserted into a group located on the lower precast arc plate 2 in the sleeve groove assembly; the upper precast arc plate 1 is symmetrically provided with transverse connection ports 5 at both ends, and the lower precast arc plate 2 is symmetrically provided with transverse connection ports 5 at both ends; one end of the group located on the upper precast arc plate 1 in the transverse connection port 5 is bolted to a transverse connection port 5 on another upper precast arc plate 1, and one end of the group located on the lower precast arc plate 2 in the transverse connection port 5 is bolted to a transverse connection port 5 on another lower precast arc plate 2.

[0025] In use, first, all the lower precast arc pieces 2 are fixed by tightening the bolts and nuts through the transverse connection ports 5 to secure adjacent lower precast arc pieces 2. Structural adhesive is evenly applied between adjacent lower precast arc pieces 2 in advance. Then, all the upper precast arc pieces 1 are fixed by tightening the bolts and nuts through the transverse connection ports 5 to secure adjacent upper precast arc pieces 1. Structural adhesive is evenly applied between adjacent upper precast arc pieces 1 in advance. Then, the locking component at the lower end of the upper precast arc piece 1 is inserted into the sleeve groove component to connect the upper and lower precast arc pieces. Structural adhesive is evenly applied to the upper end of the lower precast arc piece 2 in advance.

[0026] Example 2: Based on Example 1, the sleeve groove assembly includes a sleeve groove 301, with a plug groove 302 and a cap groove 303 at one end of the sleeve groove 301, threaded holes 304 at both ends of the sleeve groove 301, and a grouting hole 305 at one end of the sleeve groove 301; a sealing groove 306 is provided at one end of the threaded hole 304, and a sealing ring gasket 307 is inserted into the sealing groove 306; the locking assembly includes a pin body 401, which is inserted... A pin cap 402 is fixedly connected to one end of the pin body 401. The pin cap 402 is inserted into the cap groove 303. A plug protrusion 403 is fixedly connected to one end of the pin body 401. The plug protrusion 403 is inserted into the plug groove 302. A locking pin hole 404 is provided in the middle of the pin body 401. A fixing bolt 405 is inserted into the locking pin hole 404. The fixing bolt 405 is threaded into the threaded hole 304. The fixing bolt 405 is inserted into and pressed against the sealing ring gasket 307.

[0027] In use, when the locking component and the sleeve groove component are inserted and fixed, the pin body 401 and the plug protrusion 403 are aligned with the sleeve groove 301 and the plug groove 302 respectively and inserted. Then, the fixing bolt 405 is tightened through the threaded hole 304 and the locking pin hole 404. Then, grouting is performed through the grouting hole 305. The fixing bolt 405 presses the sealing ring gasket 307 into the sealing groove 306 and the pin cap 402 is inserted into the cap groove 303 to increase the sealing performance and prevent the grout from overflowing, which would cause a decrease in connection quality.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prefabricated assembled wind power generation tower structure, comprising an upper prefabricated arc plate (1) and a lower prefabricated arc plate (2); the upper prefabricated arc plate (1) is horizontally bolted to both ends of another upper prefabricated arc plate (1), and the lower prefabricated arc plate (2) is horizontally bolted to both ends of another lower prefabricated arc plate (2), characterized in that: Two sets of sleeve groove assemblies are fixedly connected to one end of the upper preformed arc plate (1), and two sets of locking assemblies are fixedly connected to one end of the upper preformed arc plate (1). Two sets of sleeve groove assemblies are fixedly connected to one end of the lower preformed arc plate (2), and two sets of locking assemblies are fixedly connected to one end of the lower preformed arc plate (2). One set of locking assemblies located on the upper preformed arc plate (1) is fixedly inserted into the set of sleeve groove assemblies located on the lower preformed arc plate (2).

2. The prefabricated assembled wind power generation tower structure according to claim 1, characterized in that: The upper precast arc plate (1) has symmetrical transverse connection ports (5) at both ends, and the lower precast arc plate (2) has symmetrical transverse connection ports (5) at both ends.

3. The prefabricated assembled wind power generation tower structure according to claim 2, characterized in that: One end of a set of bolts on the upper precast arc plate (1) of the transverse connection port (5) is connected to a transverse connection port (5) on another upper precast arc plate (1), and one end of a set of bolts on the lower precast arc plate (2) of the transverse connection port (5) is connected to a transverse connection port (5) on another lower precast arc plate (2).

4. The prefabricated assembled wind power generation tower structure according to claim 1, characterized in that: The sleeve groove assembly includes a sleeve groove (301), one end of which is provided with a plug groove (302), one end of which is provided with a cap groove (303), both ends of which are provided with threaded holes (304), and one end of which is provided with a grouting hole (305).

5. A prefabricated assembled wind power generation tower structure according to claim 4, characterized in that: A sealing groove (306) is provided at one end of the threaded hole (304), and a sealing ring gasket (307) is inserted into the sealing groove (306).

6. The prefabricated assembled wind power generation tower structure according to claim 1, characterized in that: The locking assembly includes a pin body (401), one end of which is fixedly connected to a pin cap (402), which is inserted into a cap groove (303). The other end of the pin body (401) is fixedly connected to a plug protrusion (403), which is inserted into a plug groove (302). The middle part of the pin body (401) is provided with a locking pin hole (404), and a fixing bolt (405) is inserted into the locking pin hole (404). The fixing bolt (405) is threaded into the threaded hole (304) and is pressed against the sealing ring gasket (307).

Images