Wind tower flange ellipse overproof fire correction method

Abstract

The invention relates to a wind tower flange ellipse overproof fire correction method which includes the following steps: arranging a wind tower section on a roller mould bed; measuring the flange inner diameter through a laser range finder every 5 hole positions in the flange fixed direction on one side of the wind tower section and recording the values; supporting the flange outwards at the inner diameter smallest point of the flange through a section straight-line support till the inner diameter of the flange is 5mm larger than a set value, and adding a horse plate support at the contact portion of the straight-line support and the flange; D. rotating the straight-line support to the position where an included angle alpha is formed between one end of the straight-line support and a vertical center line of the flange at the recorded largest value overproof point, and then utilizing a baking gun to heat welding gaps on the inner side and the outer side that the 135-degree position corresponds to simultaneously, wherein a heating area is 3 hole positions, and a far infrared temperature measuring pen is utilized to monitor temperature at any time in the heating process to ensure that the heating temperature does not exceed 250 DEG C; E. rotating the section clockwise, conducting heating correction towards the inner side and the outer side simultaneously sequentially at other measuring points with deviation; F. conducting air cooling. The method has the advantages of being convenient to operate and capable of improving working efficiency and reducing production cost.

Description

technical field [0001] The invention relates to a correction process for a wind tower flange ellipticity out-of-difference fire attack, and belongs to the special field of wind power generation. Background technique [0002] Wind power towers are generally installed with flange connections during installation. The flanges are generally welded to the tower tube. Due to the thin thickness of the wind tower plate or the low rigidity of the flange, the ellipticity of the flange after welding is generally out of tolerance. , which affects the later installation, thereby increasing production costs and reducing work efficiency. Contents of the invention [0003] The purpose of the present invention is to overcome the above deficiencies and provide a wind tower flange ellipse out-of-difference fire attack correction method that is easy to operate, improves work efficiency and reduces production costs. [0004] The object of the present invention is achieved through the following...

AI Technical Summary

Problems solved by technology

[0002] Wind power towers are generally installed with flange connections during installation. The flanges are generally welded to the tower tube. Due to the thin thickness of the wind tower plate or the low rigidity of the flange, the ellipticity of the flange after welding is generally out of tolerance. , which affects the later installation, thereby increasing production costs and reducing work efficiency

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