Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Wind tower flange ellipse overproof fire correction method

A correction method and flange technology, applied in wind power generation, wind engines, wind turbine components, etc., can solve the problems of flange ellipticity out-of-tolerance, reduce work efficiency, increase production costs, etc., to improve production efficiency, operation Convenience and the effect of reducing production costs

Inactive Publication Date: 2014-10-08
AVIC HONGBO WINDPOWER EQUIP
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Wind tower flange ellipse overproof fire correction method

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0019] Such as figure 1 It shows a specific embodiment of a method for correcting a wind tower flange ellipse out-of-difference fire attack according to the present invention, which includes the following steps:

[0020] A. Place the wind tower section on the roller frame 1;

[0021] B. Measure the inner diameter of the flange with a laser rangefinder at every 5 holes at the fixed position of the flange 3 on the side of the wind tower tube section, and record the value;

[0022] C. Use profile support 2 to support the flange at the point where the inner diameter of the flange is the smallest, and stop when it is 5mm larger than the design value, and support the contact part between the support and the flange with a horse board;

[0023] D. At the point where the maximum recorded value is out of tolerance, rotate the straight brace to the position where one end of it forms an angle α with the vertical center line of the flange, and α is 135°, and then weld the inner and outer...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F03D11/00
CPCY02E10/722Y02P70/50
Inventor 任新建张建云卢珏
Owner AVIC HONGBO WINDPOWER EQUIP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com