电预热技术在无补偿大管径直埋供热管道工程中的运用  

The application of electric preheating technology in the direct buried heating pipeline project

作　　者：李婷[1] 

机构地区：[1]太原市热力公司,山西太原030001

出　　处：《山西建筑》2017年第33期125-126,共2页Shanxi Architecture

摘　　要：随着太原市集中供热的快速发展,DN1 400的供热管道已用在一次管网中,针对大口径直埋供热管道,为了减少补偿器和固定墩的数量,增加管网在运行过程中的安全性,分析了几种无补偿管道安装方式的优缺点,在此基础上,分析了电预热技术的基本原理,电预热施工的基本程序和应注意的问题,印证了电预热少补偿(无补偿)直埋技术对大管径管道的可行性和实用性。With the rapid development of Taiyuan City, central heating, heating pipe DN1 400 has been used in a network, for large diameter buried heating pipe, in order to reduce the number of fixed pier and compensator, increase the safety of network in the operation process, this pa-per analyzes the advantages and disadvantages of several pipeline installation without compensation, on the basis of on the analysis of the basic principle of electric preheating technology, electrical construction and basic procedures of preheating due to pay attention to the problem, confirms the electric heating less compensation （without compensation） the feasibility and practicability of burying technology of large diameter pipeline.

关 键 词：直埋 管道工程 无补偿 电预热技术 

分 类 号：TU833.12[建筑科学—供热、供燃气、通风及空调工程]