Title:
A FLANGE ASSEMBLY, A COUPLING FLANGE AND AN ASSEMBLY METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2008/092350
Kind Code:
A1
Abstract:
A flange assembly, a coupling flange and an assembly method thereof are concerned. A
plenty of reinforced plates (2) are located on the front side of the flange plate (1).
Each front end face of the reinforced plates is provided with a balancing contact
surface (211). The bending moment produced by the compressive stress of the balancing
contact surface serves to counteract the tensile stress acted on the pipe wall
by the bolts, thus reducing the circumferential tensile stress, achieving a
reliable coupling strength and keeping a constant flexural rigidity under persistent
circulating dynamic load. So they are suited to the connection of large-scale
steel pipes such as the connection of tower pillars of circular pipe type of large-scale
wind-driven generators. The invention can save the steel consumption, and greatly
reduce the manufacture and assembly cost.
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Inventors:
MA, Renle (A703, Building of Civil Engineering CollegeTongji University,1239 Siping Road, Shanghai 2, 200092, CN)
Application Number:
CN2007/071012
Publication Date:
August 07, 2008
Filing Date:
November 02, 2007
Export Citation:
Assignee:
BAOTOU WIND POWER SCIENCE & TECHNOLOGY CO., LTD. OF CHINA WATER INVESTMENT GROUP (No.204 Room of Yanhao Apartment in Baotou Rare, Earth Hi-Tech Industrial Development Zone, Inner Mongolia 0, 014010, CN)
国水投资集团包头风电科技有限公司 (中国内蒙古自治区包头市稀土开发区研浩商务公寓204室, Inner Mongolia 0, 014010, CN)
国水投资集团包头风电科技有限公司 (中国内蒙古自治区包头市稀土开发区研浩商务公寓204室, Inner Mongolia 0, 014010, CN)
International Classes:
F03D11/04; E04H12/08
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (F16 Block A, Corporate SquareNo.35 Jinrong Street, Beijing 2, 100032, CN)
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