Flanged connection structure and anti-thunder segmented combined tower comprising same

Abstract

The invention discloses a flanged connection structure. The flanged connection structure comprises an inner flange plate and an outer flange plate, and the horizontal circular plate face of the inner flange plate and the horizontal circular plate face of the outer flange plate are respectively used for being connected with a cylinder. The inner flange plate is inserted into the outer flange plate, the outer side wall of the inner flange plate and the inner side wall of the outer flange plate on the insertion portion intersect, a rectangular groove is formed in the intersection position, the rectangular groove is divided into multiple segments, and a wedge-shaped strip inserting opening is formed in the segment, between every two adjacent segments, of the inner flange plate; the flanged connection structure further comprises a plurality of sets of wedge-shaped strips, the number of the sets is equal to the number of the segments of the rectangular groove, each set of wedge-shaped strips is composed of one upper wedge-shaped strip and one lower wedge-shaped strip, the two wedge-shaped strips in each set are inserted into the rectangular groove from the two ends of the same segment of the rectangular groove respectively to form interference fit, and positioning plugs are fixed to the segments of the rectangular groove. The connection structure is simple, high in production efficiency, small in maintenance workload and low in cost. The invention further discloses an anti-thunder segmented combined tower comprising the flanged connection structure, reliability of tower connection is improved, and lightning current conduction performance of the tower is improved.

Description

technical field [0001] The invention relates to the field of flange connection, in particular to a flange connection structure and a lightning protection segmented combined tower including the flange connection structure, which is especially suitable for the connection of wind power generator towers. Background technique [0002] Wind power is a clean renewable green energy, and its development and utilization has become a new form of energy that countries around the world are vying to adopt in the 21st century. [0003] The increase of the height of the tower is an important technical means to increase the power of wind power generation. Therefore, the tower design and manufacture of large-scale wind turbines has become an important link in wind power technology. At present, the height of the tower has reached more than 100 meters from more than 40 meters. Now the tower is generally divided into three or four sections, the length of each section is generally about 20m ~ 3...

AI Technical Summary

Problems solved by technology

[0004] The existing problems of bolt connection are as follows: 1. The screw connection installation (including inspection) process is complicated; 2. During the operation of the wind turbine, the maintenance workload is heavy, and daily maintenance, semi-annual maintenance and annual maintenance are required to ensure the reliable connection of the tower; 3. , A large number of bolted spare parts are required during the operation of the wind turbine

[0005] In addition, the increase in the height of the tower also increases the probability of lightning strikes for wind turbines. In the past, in order to improve the conduction performance of lightning current in the tower, it was necessary to install diversion cables at each combination of the tower, resulting in more connections and inconvenience to the tower. In-cylinder operation and maintenance

[0006] It can be seen that the above-mentioned existing wind power generator group segmental combined tower obviously still has inconvenience and defects in the connection structure, and needs to be further improved urgently.

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