从地下到灶台，把“生命线”织成“放心网”

Core Viewpoint - The city is actively enhancing gas safety through comprehensive upgrades to both underground pipelines and indoor facilities, ensuring a more reliable and secure gas supply for residents [1][5]. Group 1: Pipeline Renovation - The city has completed the renovation of 2,625 kilometers of old gas pipelines, focusing on systematic upgrades rather than simple replacements, to eliminate underground hazards and ensure surface safety [2][5]. - The renovation process emphasizes minimal disruption to residents, employing strategies such as "less excavation, quick repair, and early gas supply" [2]. - New technologies, including laser detectors and pressure sensors, have been integrated into the pipeline system to monitor operational parameters continuously [2]. Group 2: Indoor Facility Upgrades - Since 2022, the city has upgraded gas facilities in 6.08 million households, achieving a completion rate of 99.5%, enhancing safety at the most vulnerable points in gas usage [3]. - The upgrades include replacing rubber hoses with metal corrugated pipes and installing automatic shut-off valves to prevent gas leaks [3]. - The implementation of IoT gas meters allows for real-time monitoring and alerts for abnormal gas usage, improving safety measures [3]. Group 3: Emergency Response and Smart Monitoring - The city has established a robust emergency response system with five city-level emergency teams to ensure preparedness during critical situations [5]. - A smart gas monitoring platform has been developed to utilize big data for intelligent hazard warnings and emergency coordination, shifting from reactive to proactive safety measures [5]. - The integration of underground pipeline management, indoor facility upgrades, monitoring, and emergency response creates a comprehensive safety network for gas supply [5][6].