PTFE、FEP涂层表面CaCO_3污垢特性的实验研究  

EXPERIMENTAL INVESTIGATION ON THE CaCO_3 FOULING CHARACTE-RISTICS OF THE PTFE AND FEP COATING SURFACE

作　　者：张仲彬[1] 徐志明[1] 张明玉[1] 张碧珠 

机构地区：[1]东北电力大学,吉林吉林132012 [2]福建华电可门发电有限公司,福建福州350512

出　　处：《工程热物理学报》2009年第8期1405-1407,共3页Journal of Engineering Thermophysics

基　　金：国家重点基础研究发展规划基金项目(No.2007CB206904);国家自然科学基金项目(No.50576009)

摘　　要：实验室里进行了PTFE与FEP表面CaCO_3污垢的对比实验。采用直接称重法获得污垢生长曲线,研究了在不同流速、温度、浓度条件下PTFE和FEP两种表面污垢特性。实验结果表明:在相同流速、浓度和温度条件下,FEP比PTFE有更好的阻垢性能;溶液流速、温度和浓度对CaCO_3污垢沉积有较大影响:增大溶液流速、降低溶液的温度和浓度都会使这两种材料表面的污垢渐近值减小。The comparative experiments on the CaCO3 fouling of the PTFE and FEP coating surface were carried out. The evolution curves of fouling were obtained by way of direct weighing. The fouling processes of two coating surface were investigated in the condition of different velocity, temperatures and concentration.The experimental results show that the FEP coating surface has an advantage in an-fouling over the PTFE under the condition of the same flow velocity, temperatures and concentration. The velocity, temperatures and concentration have great effects on the CaCO3 fouling： the fouling asymptotic decreases with the increase of the flow velocity, reduction of the temperatures and concentration.

关 键 词：PTFE FEP CACO3污垢 表面能 

分 类 号：TK124[动力工程及工程热物理—工程热物理]