稳定汽油罐宜选用环舱式钢制内浮盘

选用内浮顶油罐储存轻质油品是降低油品蒸发损耗和减少环境污染的有效措施，对于催化裂化装置生产的半成品稳定汽油，一般含气量大，进罐温度偏高，因而对内浮顶结构形式的选择提出了特殊要求。几种结构的应用情况表明，浅盘式内浮顶主要存在液泛问题，最终导致浮盘沉沉，铝合金内浮顶存在介质中杂质腐蚀问题，也不能有效地避免液泛现象，而环舱式内浮顶可有效地防止大量气体在浮盘软密封处聚集，减少或杜绝了液浮现象，浮盘上部不会

Stabilized Gasoline Tank Matches Annular-cabin Type Steel Floating Roof

Using inner floating roof tank to store light oil can decrease the evaporation loss and prevent the environment from polluting. Generally,the semifinished stabilized gasoline coming from the FCC has more gas content with high temperature when.it enters into the tank. Therefore,how to select the structure of the inner floating roof is more important. The application of several structures shows that the ring-plate type inner floating roof presents the liquid overflowing problems,which causes the plate to sink;the aluminum-alloy inner floating roof exists corrosion problem caused by impurities in the light oil,which can not avoid the liquid overflowing as well. The annular-cabin type inner floating roof can effectively prevent the gas from building-up at the soft seals of floating roof,and decrease or prevent the liquid overflowing. Th'e liquid can not accumulate on the top of floating roof. It is considered that if the protective coating applies to the floating roof,the structure will be an ideal selection for the stabilized gasoline tank.