供热直埋管道覆土预热安装的研究  

Research of Directly Buried Heating Pipe of Overburden Preheating Installation

作　　者：史旭东 

机构地区：[1]山西省城乡规划设计研究院

出　　处：《建筑热能通风空调》2015年第5期67-69,共3页Building Energy & Environment

摘　　要：根据《城镇供热直埋热水管道技术规程》(CJJ/T81-2013)一次性补偿器覆土预热的理论,对工程实例中DN1200预制直埋保温管一次性补偿器间距、预热温度和预热管段伸长量进行研究,其理论对工程实际有很大的指导意义。减小一次性补偿器间距和选择较低的预热温度,在保证管道升温不屈曲的基础上也保证了管道降温的安全性。Based on the theory of technical spceification for Directly Buried Hot-water Heating Pipeline in City（CJJ/T81-2013） in one-off compensator of overburden preheating, the paper gives a study of the compensator spacing,preheating temperature and elongation of preheating pipes to DN1200 prefabricated directly buried insulating pipe used in engineering projects. The theoretical calculation value is of great significance for practical engineering. Reducing compensator spacing and choosing the lower preheating temperature, will ensure the safety of the pipeline while cooled,on the basis of ensuring the pipeline does not buckle while heated.

关 键 词：供热管道 一次性补偿器 覆土预热 预热温度 

分 类 号：TU995.3[建筑科学—供热、供燃气、通风及空调工程]