拱顶储油罐的机械清洗

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。

Mechanical cleaning of dome-roof tank

This paper discusses the application of mechanical cleaning technology and its necessity in dome-roof oil tank. In consideration of the differences existed in mechanical cleaning technology for dome-roof tank and floating-roof tank, the installation method of jet should be different. For the dome-roof tank, the jet shall be installed on the top of the tank, and installation of it includes two types, one is made with the existing hole on the tank-top, and another is made with tapping on the tank-top, and if the jet installation location and jet quantity cannot satisfy the requirements of the cleaning operation, the jet can be installed on the tank wall near manholes. In the paper, the technical preparation procedure before tapping including the manufacture method of fixing support of jet, prefabrication of tapping adapter and technical key points of bonding with tank roof, installation of tapping machine, and safety measures of tapping operation, and other tapping operation technology is given, and the cautions in mechanical cleaning operation are provided.