摘要
乙烯装置低温工艺管线具有温度变化大(-29^-196℃)、工艺复杂、安装要求高等特点,需严格按规范及技术要求施工。以兰州石化700 kt/a乙烯改扩建工程乙烯装置低温管线的施工为例,对低温管道的选材、检验、预制、焊接、热处理、安装、试压、干燥等施工技术进行介绍。
Low temperature process pipeline of ethylene plant is featured by great temperature variation(- 29 ^- 196 ℃),complicated process and high installation requirements,so relevant specifications and technical requirements shall be strictly followed in construction. Taking the construction of the low temperature pipeline in the ethy-lene plant in 700 kt /a ethylene expansion project of PetroChina Lanzhou Petrochemical Company as an example,this article introduces the construction technology of low temperature pipeline such as material selection,inspection,prefabrication,welding,heat treatment,installation,pressure test and drying.
出处
《乙烯工业》
CAS
2014年第3期14-16,1,共4页
Ethylene Industry
关键词
乙烯装置
低温钢
管道
施工
Ethylene plant
Low temperature steel
Pipeline
Construction