治理“带病”管道，护你安“燃”无恙

Group 1 - The city has been systematically upgrading old gas pipelines that are 20-30 years old, with a total planned renovation of 608.7 kilometers during the 14th Five-Year Plan period [1] - As of now, 596.7 kilometers of old gas pipelines have been updated, achieving a progress rate of 98% [1] - A recent project on Hanzhong Road involved the successful completion of a 780-meter gas pipeline upgrade in the city center, taking 18 days to finish [1] Group 2 - This year, the city has set a task to renovate 140.3 kilometers of old gas pipelines, with 128.3 kilometers already completed [2] - The renovation includes not only municipal pipelines but also courtyard and community vertical pipelines, with a specific project involving 17 buildings and 704 households [2] - The new renovation approach utilizes an "outer wall pipe original position" scheme to enhance safety and longevity of the gas pipelines [2]