PEX、PP-R和PAP管局部水力损失的实验研究  

Research on Part Hydraulic Loss for PEX、PP-R and PAP Pipelines

作　　者：完颜华[1] 张国珍[1] 伏小勇[1] 杨惠军[1] 

机构地区：[1]兰州铁道学院环境科学与工程学院,甘肃兰州730070

出　　处：《兰州铁道学院学报》2002年第3期68-70,共3页Journal of Lanzhou Railway University

摘　　要：通过对交联聚乙烯 (PEX)、三型聚丙烯 (PP -R)和铝塑复合 (PAP)管水力损失的实验研究 ,提出了工程设计中PEX、PAP的局部水力损失按其沿程损失的 2 5 %～ 6 5 %计算 ,而PP -R管局部水力损失按其沿程损失的15 %～ 35 %计算较为合理 ;同时对三种塑料管的沿程水力损失与钢管的沿程水力损失也进行了比较 ,提出PEX、PAP和PP -R管的沿程水力损失比钢管的水力损失至少要小 30 % ,当流速超过 1.1m/s以上时三种塑料管的水力损失不到钢管水力损失的 4 5 %By studying the experiment on the hydraulic loss of the Polyproylene pipeline(PP-R) and Polyethylene-Aluminum-Polyethylene (PAP).We put forward that part hydraulic loss of PEX、PAP is 25%～65% of lining hydraulic loss and the PP-R'S part hydraulic loss is 15%～33% of lining hydraulic loss in engineering design.As the same time,compared these three kinds of plastic pipe's lining hydraulic loss with steel pipe's, It's proved that the former is below 30% than steel pipe's at least.And when velocity exceeds 1.1 m/s,hydraulic loss of three kinds plastic pipes is than less 45% of steel pipe's.

关 键 词：局部水力损失 实验研究 PEX管 PP-R管 PAP管 给水箱网 建筑工程 水力计算 交联聚乙烯 三型聚丙烯 铝塑复合管 

分 类 号：TU991.32[建筑科学—市政工程] TU991.33