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1994年,我单位承揽了马鞍山市石油公司的油库建安工程,其关键是6台3000m~3对接钢油罐的安装。油罐为3台贮存柴油的拱顶罐和3台贮存汽油的内浮盘拱顶罐,其内径为φ18m,高14m,重68t,采用δ6、δ8、δ103种规格钢板共8带板组成。根据目前的施工方法,油罐安装可采用正装法或倒装法,倒装法又分气顶倒装、油压顶升倒装、内外桅杆倒装等多种方法。结合油罐特征、施工场地及我单位机具情况,确定采用内桅杆倒装法施工。 一、工艺原理 通过均布在罐内一周,头部挂有千不拉的若干根管子桅杆来提升与
In 1994, my unit contracted Maanshan Oil Company’s depot construction project, the key is the installation of 6 3000m ~ 3 butt steel tanks. Oil tank for the storage of diesel vault cans and three storage of gasoline within the floating dome vault, the inner diameter of φ18m, height 14m, weight 68t, the use of δ6, δ8, δ103 specifications of a total of 8 plate with a plate. According to the current construction method, the installation of the tank can be installed directly or flip-flipped, flip-topped gas flip, hydraulic lift flip, inside and outside the mast flip and other methods. Combining with the characteristics of oil tank, construction site and the equipment of our unit, we decided to use the inner mast flip-in construction. First, the principle of the process Through the uniform in the tank for a week, the head hung a few do not pull a number of pipe mast to enhance and