全长110公里！我国最长的长输供热管道贯通

Core Viewpoint - The "Liaohotou Jinan" project has successfully completed the northern line, which will provide clean heating to Jinan city using waste heat from a power plant in Liaocheng, marking a significant step in addressing the city's heating demands and environmental concerns [1][4]. Group 1: Project Overview - The "Liaohotou Jinan" project utilizes waste heat from the Xinyuan Power Plant in Liaocheng to supply heating to Jinan, with the northern line now fully connected and undergoing cold testing for the upcoming winter heating season [1]. - The northern line of the project spans 110 kilometers with a pipe diameter of 1.6 meters, making it the longest and largest heat supply pipeline in China [1]. Group 2: Environmental Impact - The combined northern and southern lines of the project, totaling approximately 150 kilometers, are expected to provide heating for 100 million square meters and reduce standard coal consumption by 1.2989 million tons per heating season, leading to a reduction of 3.564 million tons of carbon dioxide emissions [4]. - The environmental benefits are equivalent to the carbon sequestration of four Saihanba forest farms in one year [4]. Group 3: Construction Challenges - The project crosses three cities and five counties, passing through 140 natural villages and featuring 110 key points, with the southern line facing significant construction challenges, including a tunnel under the Yellow River that extends 4,500 meters with a maximum burial depth of 55 meters [4]. - The construction team overcame high water pressure, complex geological conditions, and steep gradients to complete the longest heating tunnel in China [4]. Group 4: Urban Heating Needs - Jinan, as a major city in the Yellow River basin and a key area for air pollution transmission in the Beijing-Tianjin-Hebei region, has been under pressure to meet increasing heating demands while adjusting its energy structure [5]. - The operation of the "Liaohotou Jinan" project will allow for the shutdown of 54 coal-fired heating boilers in the main urban area of Jinan by the end of the year [5].