化学镀在换热表面强化滴状凝结、阻垢、耐蚀研究进展

发布时间：2018-06-08 19:25

本文选题：强化换热 + 滴状凝结　；参考：《化工进展》2015年S1期

【摘要】：从换热器实际问题出发,分别回顾了化学镀层强化凝结换热、阻垢、耐蚀3个方面的研究进展。在强化凝结换热方面,阐述了以Ni-P化学镀为基础的界面表面能、镀层非晶含量、温度、压力以及添加PTFE等物质对在换热界面形成滴状凝结的影响。在化学镀阻垢方面,介绍了污垢的生长过程,讨论了镀层非晶含量、实验条件、梯度镀层以及添加W、BN、Sn、Cu等元素对镀层阻垢性能的影响。在化学镀耐腐蚀研究方面,阐述了镀层磷含量、梯度镀层、表面活性剂、镀液pH值、温度以及添加Cu、PTFE等元素对镀层抗腐蚀性能的影响。并根据实际生产情况,提出对镀层强化凝结换热、阻垢和耐腐蚀3个方面特性相互间的影响关系进行研究。同时提出,为了推进镀层技术工业化发展,还应解决镀层长效性的问题。
[Abstract]:Based on the practical problems of heat exchangers, the progress in strengthening condensation heat transfer, scale inhibition and corrosion resistance of electroless coatings is reviewed. In the aspect of strengthening condensation heat transfer, the effect of Ni-P electroless plating on surface energy, amorphous content, temperature, pressure and addition of PTFE on the formation of droplet condensation at heat transfer interface was discussed. In the aspect of scale inhibition by electroless plating, the growth process of fouling was introduced, and the effects of amorphous content, experimental conditions, gradient coating and addition of WBN Sn-Cu on the scale inhibition performance of the coating were discussed. In the aspect of corrosion resistance of electroless plating, the effects of phosphorus content, gradient coating, surfactant, pH value of plating solution, temperature and addition of Cu-PTFE on the corrosion resistance of the coating were discussed. According to the actual production conditions, the relationship between the characteristics of enhanced condensation heat transfer, scale inhibition and corrosion resistance is studied. At the same time, in order to promote the industrialization of coating technology, the long-term effect of coating should be solved.
【作者单位】：中国石油化工股份有限公司抚顺石油化工研究院;
【分类号】：TG174.4

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