论文部分内容阅读
传统常规水电站检修集水井承压进人密封门盖板是按GB150钢制压力容器的法兰盖进行设计和计算的,设计时虽然简化了计算,但考虑钢板负偏差和腐蚀余量后检修集水井承压进人密封门盖板十分笨重。以下是某水电站按传统钢制压力容器计算的检修集水井承压进人密封门盖板,重量高达205 kg(1020 mm伊1020 mm伊25 mm)。为了减轻该盖板的重量,使盖板及预埋边框的形状和结构满足与检修集水井承压钢筋混凝土顶板联合受力的要求,该钢结构部件宜按板梁结构设计。按此方法设计的集水井承压进人密封门盖板重量仅为120 kg左右。该检修集水井承压进人密封门盖板设计方案既能满足受力时的刚强度要求,减轻了部件重量,方便了检修搬运,同时外观又十分美观,对其他水电站检修集水井承压进人密封门盖板设计计算有较大的借鉴价值。
Traditional conventional hydropower station water wells set pressure seal into the door is based on GB150 steel pressure vessel flange cover design and calculation, although the design to simplify the calculation, but considering the negative plate and corrosion after the overhaul maintenance set Pressure wells into the sealed door cover is very cumbersome. The following is a hydropower station according to the traditional steel pressure vessel to calculate the maintenance wells into the sealed door pressure seal, weighing up to 205 kg (1020 mm Iraq 1020 mm Iraq 25 mm). In order to reduce the weight of the cover plate, the shape and structure of the cover plate and the prefabricated border frame meet the requirements of the joint stress of the reinforced concrete top plate of the collecting well for maintenance, and the steel structural part should be designed according to the plate-beam structure. According to this method, the design pressure of the water collection wells into the sealing door cover weighs only about 120 kg. The overhaul of water wells into the sealed door cover design scheme can not only meet the rigid strength requirements of the force, reducing the weight of the parts and facilitate the maintenance and handling, and the appearance is very beautiful, water pressure wells for maintenance of other hydropower stations Human seal door design calculations have greater reference value.