城市集中供热中,现普遍采用直埋供热管道,由于直埋供热管道在设计施工及运行等方面的原因,导致供热系统在运行时经常会出现一些故障,影响了正常供热。通过多年的工程经验,分析提出减少热网系统故障,从设计、施工和运行等方面采取措施,热网应优先采用无补偿直埋敷设方式,安全可靠,确保供热质量。 In urban central heating, direct-buried heating pipes are commonly used. Due to the design, construction and operation of direct-buried heating pipes, some problems often occur during operation of the heating system, affecting the normal heating. Through many years of engineering experience, the paper analyzes and puts forward measures to reduce the fault of the heat network system and take measures from the aspects of design, construction and operation. The heat network should give priority to the non-compensated direct burying laying method, which is safe and reliable and ensures the heat supply quality.