LNG低温储罐罐壁保冷施工技术研究

Study on the Cold Insulation Construction Technology of LNG Low-Temperature Storage Tank Shell

摘要: LNG低温储罐的保冷施工是罐体施工的关键工序，而罐壁的保冷施工既是保冷施工的重点也是施工难点。罐壁保冷层具有结构设计复杂、高空作业多、安装标准高的特点，在施工中要严格遵循规定的程序和技术要求，而施工全程的安全高效、施工的质量控制等问题的解决是LNG低温储罐罐壁保冷工作顺利实施的重要保证。文章以模拟LNG低温储罐罐壁空间进行保冷施工为例，对罐壁保冷层的结构特点、施工顺序、施工方法等内容进行详细叙述。

Abstract: The cold insulation construction of LNG low-temperature storage tank is the key process of construction of tank shell and the cold insulation construction of tank wall is both key point and difficult point of cold insulation construction. The cold insulation layer of tank wall is with characteristics of complicated structure design, frequent overhead operation and high-standard installation, strictly abiding by stipulated procedure and technique requirements during construction. And solution to problems of safety and high efficiency during whole process of construction and control of construction quality is important guarantee of carrying out cold insulation construction of LNG low-temperature storage tank wall smoothly. This paper cites simulation of cold insulation of LNG low-temperature storage tank wall as example and describes detail contents of structure characteristics of cold insulation layer of tank wall, construction procedure and construction methods.