低温液化石油气压力管线的设计安全性评价

Safety Assessment of Design of Pressure Piping for Low Temperature Liquid Petroleum Gas

针对某清洁能源公司生产区P－1037、P－1055、P－1056低温压力管线的设计、安装中出现的问题，提出在低温管道设计中也存在低温低应力工况，和低温压力容器设计中的相关内容类似，在此基础上完成了对该管线的时间安全性评价，并在工程实际中得到了验证。

： With the problems existed in the design and installation of the piping working in low temperature in one production area of the clean energy com-pany， it is pointed out in this paper that the condition of low stress accompa-nied with low temperature existed in the design， which is analog with the de-sign of low temperature vessels． With this analysis， the safety assessment of the piping based on the time elapsed was carried out． The conclusion has been proved in the practice．