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东营原油库有6座2×10~4/m~3浮顶罐,投用仅三年多,就有5座罐的中央排水管相继损坏,影响了油库收发油品的正常生产。浮顶罐中央排水管的作用就是把罐顶的积水排出罐外。中央排水管是由8个直角旋转弯头与一系列接管组合而成。其下端固定在罐壁处,上端固定在浮顶单盘中央处,并随浮顶的升降而起落。浮顶罐的中央排水管展开图见附图。
There are 6 2 × 10 ~ 4 / m ~ 3 floating roof tanks in Dongying Crude Oil Reserves. After only 3 years of use, there are 5 central cans of central drainage pipes damaged one after another, which has affected the normal production of oil depot. The role of the central drain of the floating roof tank is to drain the water from the top of the tank. The central drain is made up of eight right-angle elbows combined with a series of takeovers. The lower end is fixed at the tank wall, the upper end is fixed at the center of the floating single plate, and rises and falls with the floating roof. Floating roof tank central drain expansion plans see the attached drawings.