关于直埋膨胀节在蒸汽管道中设计、施工及运行管理的探讨

The Search For Design, Implement and Operation Management about Direct Burial Expasion Joint in Steam pipe

蒸汽管道直埋敷设在我国尚属探索阶段，基础理论还不完善，本文根据我公司近几年在蒸汽管道安装运行经验，就直埋蒸汽管道在设计问题、压力管道元件——膨胀节的设计及选用等方面问题、保温材料及保温结构的选择、运行方面的问题进行分析及探讨，以期为膨胀节在直埋蒸汽管道的设计施工中的应用提供更多的经验和参考。

the steam pipe straight thread technique is during the explore phase in our country, and the base theory is not consummate. The article discussed and analyzed the design of direct burial steam pipe choose, pressure piping unit or expansion joint design and choose, insulation material and heat preservation structure choose, and the problem during implement. These all according to the steam pipe assemble and implement experience of our company in recent years. And the purpose is to provide more experience and reference for the expansion joint in direct burial steam pipe design and implement.