塑料采暖管材使用寿命计算方法的研究  

Study on Calculation Method for Life Span of Plastics Pipes at Changing Temperature

作　　者：王艳[1] 张于峰[1] 刘树坤[2] 

机构地区：[1]天津大学环境科学与工程学院,天津300072 [2]天津理工学院自动化与能源工程学院,天津300191

出　　处：《中国塑料》2003年第6期81-85,共5页China Plastics

摘　　要：针对在采暖系统中日益广泛使用的新型塑料管材 ,试探讨适合不同热力工况的塑料管材使用寿命的计算方法 ,也是工程设计中选用管材的一种可行的方法。同时推导出了计算逐时温度的计算式。A calculation method for plastics pipes widely used in heating system in various working conditions was studied. It is also useful for the selection of plastics pipes in engineering design.Also,a formula is deduced to calculate the instant time temperature.Reasons that pipe series ISO criterion suggests to adopt isn't absolutely suitable for the heating systems in our country's different regions are given and analysed.

关 键 词：塑料管材 新型供热管材 使用寿命 

分 类 号：TQ320.724[化学工程—合成树脂塑料工业]