上海城市管道燃气应用较早，随着户内燃气管道的长年运行，部分高龄老旧的户内管道面临着更新改造。通过分析上海住宅户内燃气管道的运行现状及户内管道存在的问题，结合实际改造工作中遇到的困难以及相关技术规定，探索寻求户内管道改造的可行性方案。%It has been a long history for Shanghai to use gas, and with long time operation of indoor gas pipelines, some old indoor gas pipes need renovation. By analyzing the current situation, combining with the technical specifications and problems met in the renovation, this paper explores a feasible plan.
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