| 摘要 |
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. |
