热交换器非晶镀层表面的污垢特性研究  

Fouling Characteristics on Amorphous Deposit Surface of Heat Exchangers

作　　者：程延海[1] 张世举[1] 彭玉兴[1] 朱真才[1] 程林[2] 

机构地区：[1]中国矿业大学机电工程学院,江苏徐州221116 [2]山东大学热科学与工程研究中心,山东济南250061

出　　处：《工程热物理学报》2012年第5期828-830,共3页Journal of Engineering Thermophysics

基　　金：国家自然科学基金项目(No.51006117;No.51105361);中国博士后科学基金项目(No.20090461152)

摘　　要：研究了化学镀三元Ni-Cu-P镀层的制备工艺,分析了三元Ni-Cu-P镀层成分、镀速的变化规律。通过DSA100接触角仪测试表明,所得三元Ni-Cu-P镀层均具有较大的接触角及较低的表面自由能。进一步的污垢沉积实验结果表明,与热交换器常用的不锈钢换热表面相比,4种三元Ni-Cu-P镀层表面均明显抑制了污垢的粘附。In the present study,the authors studied the preparation process of ternary Ni-Cu-P deposits and discussed the composition and depositing rate of ternary Ni-Cu-P deposits as a function of copper sulphate concentration in the bath.The experimental results by DSA100 type contact angle tester showed that the ternary Ni-Cu-P deposits had higher contact angle and lower surface free energy.The further fouling experiments indicated that the surfaces of ternary Ni-Cu-P deposits with different phosphorus content inhibited the adhesion of fouling compared with the stainless steel surface of the heat exchangers.

关 键 词：热交换器 Ni-Cu-P镀层 铜含量 污垢 

分 类 号：TK124[动力工程及工程热物理—工程热物理]