储罐全接液内浮盘密封失效的预防  

Prevention of Sealing Failure of Full-contact Liquid Internal Floating Roof Tank

作　　者：郝爽 Hao Shuang(SINOPEC Jingmen Petrochemical Company,Jingmen Hubei 448000,China)

机构地区：[1]中国石化荆门石化公司,湖北荆门448000

出　　处：《山西化工》2024年第11期178-182,共5页Shanxi Chemical Industry

摘　　要：为了满足储罐VOCs无组织排放要求,许多石油化工企业对轻质油储罐实施了全接液浮盘密封系统改造,但储罐内浮盘密封失效情况仍有发生。本文简要介绍了内浮顶储罐全接液浮盘密封系统的构成,对比了不同形式全接液浮盘的结构和优缺点,分析了两起储罐全接液内浮盘密封失效的案例,研究了导致储罐全接液内浮盘密封失效的主要原因,并从设计制造、施工质量、检测验收和使用管理四个方面,提出预防储罐全接液内浮盘密封失效的措施,以期减少内浮顶储罐VOCs泄漏,确保储罐运行安全。In order to meet the requirements of fugitive emission of VOCs in tanks,many petrochemical plants have applied the full-contact liquid floating roof sealing system to the light oil tanks,but the sealing failure of floating roof still occurs in tanks.This paper briefly introduces the composition of the full-contact liquid floating roof sealing system,compares the structure,advantages and disadvantages of different types of full-contact liquid floating roofs,analyzes two cases of full-contact liquid floating roof sealing failure in tanks,studies the main reasons for the sealing failure of full-contact liquid internal floating roof tanks,and proposes preventive measures from four aspects:design and manufacture,construction quality,inspection and acceptance,and operation management,in order to reduce the leakage of VOCs in internal floating roof tanks and ensure the safety of tank operations.

关 键 词：储罐 全接液浮盘 全补偿密封 密封失效 

分 类 号：TE972[石油与天然气工程—石油机械设备]