摘要
实验研究了钛管的污垢特性,并和不锈钢管、紫铜光管的污垢特性进行了比较。结果表明,钛管的污垢诱导期随着浓度的增大而增大,随着流速的增大而减小;但污垢热阻值随着浓度和流速的变化规律较复杂。在同种工况下,钛管的诱导期比不锈钢管短、却比铜管长,污垢热阻渐近值比铜管小、却比不锈钢管大,说明了钛管的抗垢性能虽好于铜管,但比不锈钢管差。
An experimental study of titanium tube fouling characteristics was conducted,which were compared with those of stainless steel tubes and copper bare tubes.The results of the study show that the fouling induction period of the titanium tubes will increase with an increase of concentration,and decrease with an increase of flow speed.However,the law governing the change of fouling heat resistance with the concentration and flow speed is rather complicated.Under the same operating conditions,the induction period of titanium tubes is shorter than that of stainless steel tubes but longer than that of copper tubes.The fouling heat resistance asymptotic value of the titanium tubes is smaller than that of copper tubes,but bigger than that of stainless steel tubes.This indicates that the fouling resistant characteristics of titanium tubes,though superior to those of copper tubes,are inferior to those of stainless steel tubes.
出处
《热能动力工程》
EI
CAS
CSCD
北大核心
2008年第5期523-526,共4页
Journal of Engineering for Thermal Energy and Power
基金
国家自然科学基金资助项目(50576009)
关键词
钛管
CACO3污垢
污垢特性
诱导期
titanium tube,CaCO_3 fouling,fouling characteristics,induction period
