Group 1 - The core viewpoint emphasizes the importance of upgrading old heating pipelines to ensure safe, stable, and efficient heating operations during winter [1][3] - Qingdao Energy Thermal Power Group has initiated a comprehensive plan to replace 115 kilometers of old heating pipelines, marking it as a priority project for the year [1][5] - The project includes 200 sub-projects, requiring careful consideration of traffic flow and overall planning, while avoiding peak periods such as exam seasons and summer floods [5][11] Group 2 - The aging heating pipelines, some dating back to the 1980s, have begun to show signs of corrosion and deterioration, posing potential risks to heating safety and quality for residents [3][7] - The project will replace a total of 1,476 meters of DN900 pipelines, which currently support a heating load of approximately 8 million square meters [9] - To enhance project efficiency, the company has organized two construction teams with over 30 workers, implementing real-time monitoring and dust control measures [9][11]