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阐述了机械清洗技术在拱顶储油罐中的应用现状,基于拱顶罐与浮顶罐机械清洗技术的差异,分析了两者在喷嘴安装方式上的区别。拱顶罐清洗喷嘴安装在罐顶部,包括利用现有的罐顶管口和在罐顶重新开孔两种形式;当罐顶安装的喷嘴位置或数量达不到清洗作业要求时,亦可在罐壁人孔部位安装喷嘴。此外,介绍了罐顶开孔前的技术准备、储罐清洗喷嘴固定支座的制作方法、罐顶开孔短接管的预制及其与罐顶板的粘接技术要领、开孔机的安装和开孔作业安全措施等拱顶罐罐顶开孔作业技术,总结了拱顶罐机械清洗作业程序及清洗施工中的安全注意事项。
The application status of mechanical cleaning technology in vault storage tank is expounded. Based on the difference of mechanical cleaning technology between vault tank and floating roof tank, the difference between the two methods in nozzle installation is analyzed. The vial cleaning nozzle is installed on the top of the tank, including the use of the existing tank top nozzle and the re-opening of the tank top. When the position or number of nozzles installed on the tank top can not meet the cleaning operation requirements, Install the nozzle on the wall of the tank wall. In addition, the technical preparation before tank top opening, the manufacturing method of tank cleaning nozzle fixed support, the prefabrication of tank top shorting pipe and its bonding technology with tank roof, the installation and opening of drilling machine are introduced. Hole operation safety measures such as the top of the jar canopies opening operation technology, summarizes the vault cans mechanical cleaning operation procedures and cleaning safety precautions in construction.