关键词: 拍门, 充压伸缩框型水封, 仿真计算, 线压力, 充压值, 接触应力, 接触宽度

Abstract: To get the pressurized value of back cavity of the pressurized telescopic frame water seal and the corresponding contacting relation of seal section and seal-head under different linear loads, a nonlinear approximation method was used to obtain the linear loads on each section of the frame water seal, so the three-dimensional issue can be converted into plane issue. After simulation, the linear pressure and deformation status of the water seal were obtained and based on the result, we can get the answers. The calculation result showed that the pressurized water seal of flap gate can better seal water than the traditional extrusion water seal under middle and low water head (general water head). Considering its advantages in buffering and human control, this pressurized water seal of flap gate has good application prospects.

Key words: flap gate, pressurized telescopic water seal, simulation calculation, line pressure, pressurized value, contacting stress, contacting width