换热管磨损对翅片管冷凝器寿命的影响  

Influences of heat exchange tube's abrasion on life-span of finned tube condenser

作　　者：朱卫英 李鹏冲 

机构地区：[1]大连三洋压缩机有限公司

出　　处：《制冷与空调》2014年第6期37-39,71,共4页Refrigeration and Air-Conditioning

摘　　要：采用经典摩擦理论,对翅片管冷凝器在压力和温度载荷共同作用下进行强度分析。根据其载荷分布特点,分析因热胀冷缩导致的换热管和端板之间的磨损对冷凝器使用寿命的影响。计算结果表明,换热管和端板之间的磨损会导致冷凝器泄漏并使冷凝器的使用寿命缩短约1/3。Strength analysis is conducted for finned tube condenser under pressure and temperature loads using the classic friction theory.According to the characteristics of the load distribution,the influences of abrasion between the heat transfer tubes and tube plate caused by thermal expansion and contraction on condenser＇s life-span are analyzed.The calculation results show that the abrasion between the heat transfer tubes and tube plate can lead to the leakage of condenser and shorten condenser＇s life-span by one third.

关 键 词：摩擦理论 翅片管冷凝器 强度 热胀冷缩 磨损 寿命 

分 类 号：TK172.4[动力工程及工程热物理—热能工程]