上海石化总厂二期工程化工厂芳烃装置九台国内球罐(二台2000m~3,七台400m~3),总厂设计院原设计结构为:两顶三带式即上、下极顶、赤道带和上、下温带。建设单位化工一厂认为:制造厂有压制大块球瓣的能力,建议取消赤道带,增大上、下温带,即增大上、下温带单块板的尺 Shanghai Petrochemical Plant Phase II Plant Aromatic Hydrocarbon Unit Jiutai domestic spherical tank (two sets of 2000m ~ 3, Qitai 400m ~ 3), Plant Design Institute of the original design structure: two top three with the upper and lower pole top, Equator and upper and lower temperate zone. Construction unit chemical plant that: the manufacturer has the ability to suppress the large ball valve, it is recommended to cancel the equatorial belt, increase the upper and lower temperate zone, that is, to increase the upper and lower temperature with a single ruler