焦化汽油内浮顶储罐的氮封设计

The Nitrogen Sealing Design of Coking Gasoline Inner Floating Roof Tanks

氮封设施是保障轻质油内浮顶储罐安全运行的措施之一。氮封的作用主要是防止硫铁化合物自燃、雷击、静电或明火等引燃罐顶空间的可燃气体,同时防止储存介质氧化聚合等。焦化汽油硫含量高且易被氧化,因此,对焦化汽油内浮顶储罐设置氮封是必要的。氮封设计应本着安全、节约和便于操作维护的原则,实现储罐安全、经济的运行。

Nitrogen sealing facilities was one of the measures that can ensure the safe operation of the light oil in inner floating roof tank, prevent pyrite compound combustion, lightning strike, electrostatic or flame to ignite combustible gas in roof of tank, and to prevent the storage medium oxidative polymerization, etc. Coking gasoline sulfur content was high and easy oxidized, therefore, it was necessary to design nitrogen sealing for the coking gasoline inner floating roof tank. Nitrogen sealing design should be in line with the principle of safe, economical and convenient for operation and maintenance, for realization of storage tank safety and economic operation.