池式沸腾条件下CaSO_4污垢生成的实验研究  

Investigation of CaSO_4 scale formation under pool boiling

作　　者：任晓光[1] 李铁凤[2] 赵起[3] 汉斯.姆勒.斯蒂文哈根 

机构地区：[1]北京石油化工学院化工系,北京102600 [2]北京化工大学化工学院,北京100029 [3]萨里大学化工系

出　　处：《化学工程》2006年第3期13-15,32,共4页Chemical Engineering(China)

基　　金：北京市优秀人才培养专项经费资助项目(Z2004207)

摘　　要：在池沸腾装置中,100℃下CaSO4饱和溶液以及热通量55—300 kW/m2,研究了传热表面性质对硫酸钙污垢沉积的影响。通过现代表面处理技术,例如动态混合离子注入和动态混合磁控溅射技术,对若干加热器表面进行处理,以减小金属表面的表面能。研究表明,表面能低的表面,即经离子注入或磁控溅射的表面具有良好的抗垢性能。The influences of heat transfer surface properties on the formation of calcium sulphate deposition were investigated under pool boiling condition with heat fluxes of 55-300 kW/m^2 and a saturated CaSO4 concentration at 100 %. The surfaces of several test heaters were treated by surface modification techniques, such as dynamic mixing ion beam implantation and dynamic mixing magnetron sputtering to reduce surface energy. The results show that heat transfer surfaces with low surface energy reduce CaSO4 scale formation significantly.

关 键 词：CaSO4污垢 离子注入 池式沸腾 

分 类 号：TQ050[化学工程]