综合管廊内热水管道隔热滑动支架管托选型

Type Selection of Heat-insulated Sliding Brackets for Hot Water Pipeline in Urban Utility Tunnel

通过对传统滑动支架管托的热损失分析,结合热水管道结构参数,总结出综合管廊内热水管道隔热滑动支架管托设计选型原则:DN 600 mm及以下的热水管道选择管夹式隔热滑动支架管托;DN 700~900 mm的热水管道,因管夹最小宽度超过0. 512 m,为了减小单个管夹宽度,可以选用双管夹式隔热滑动支架管托;DN 1 000 mm及以上的热水管道,因管夹式隔热滑动支架管托安装困难,为了降低现场施工难度,可以选择预制隔热滑动支架管托。

Through the analysis of the heat loss of the traditional sliding bracket,combined with the structural parameters of the hot-water pipeline,the selection principle in design of the heat-insulated sliding bracket in the utility tunnel is summarized. For hot-water pipeline of DN 600 mm and below,pipe clamp type heat-insulated sliding bracket can be selected. For the hot-water pipeline of DN 700 to 900 mm,because the minimum width of the pipe clamp exceeds 0. 512 m,in order to reduce the width of the single pipe clamp,double-pipe clamp type heat-insulated sliding bracket can be selected. For the hot-water pipeline of DN1 000 mm and above,because it is difficult to install the pipe clamp type heat-insulated sliding bracket,in order to reduce the difficulty of on-site construction,prefabricated heat-insulated sliding bracket can be selected.