石化设备激光清洗应用研究  

Research on Application of Laser Cleaning for Petrochemical Equipment

作　　者：段成红[1] 池瀚林 陈晓奎 罗翔鹏[1] Duan Chenghong;Chi Hanlin;Chen Xiaokui;Luo Xiangpeng(College of Mechanical and Electrical Engineering,Beijing University of Chemical Technology,Beijing 100029,China)

机构地区：[1]北京化工大学机电工程学院,北京100029

出　　处：《应用激光》2021年第4期826-832,共7页Applied Laser

摘　　要：针对石化设备激光清洗,首先通过搭建工艺平台,进行了不锈钢焊接件黑皮的激光清洗工艺研究,获得了最佳清洗效果及最高清洗效率的工艺参数,其次进行了未清洗、激光正常清洗及激光过度清洗后的不锈钢焊接件拉伸和弯曲试验,发现过度清洗试件的抗拉强度测试结果比标准中的值高17.3%,且弯曲试验中受拉面焊缝和热影响区域表面也均未产生裂纹,其符合NB/T 47016—2011《承压设备产品焊接试件的力学性能检验》标准的验收要求,证明了激光清洗对石化设备焊接区的静强度力学性能影响符合工程要求,是一种安全的清洗方法;最后通过石化设备现场激光清洗试验,根据清洗效果和清洗效率,结合激光选区清洗、损伤小和可达性好的优势,给出了石化设备各种场合中激光清洗的推荐程度,为激光清洗技术在石化领域的应用提供了参考。Aiming at the laser cleaning of petrochemical equipment, firstly, the laser cleaning process for black skin of stainless steel weldment is studied by building a process platform, and the process parameters of the best cleaning effect and the most efficient cleaning process were obtained. Secondly, tensile and bending test of the stainless steel weldment with excessive laser cleaning, normal laser cleaning and without cleaning were carried out. The ultimate tensile strength of the stainless steel weldment with excessive laser cleaning exceeded the value in the standard by 17.3%, and no cracks were found on the surface of the welding area and the heat affected zone in the bending test, which means that all specimens are accord with NB/T47016-2011 "Mechanical property tests of product welded test coupons for pressure equipment". It is proved that static strength mechanical properties of welding area of petrochemical equipment with laser cleaning meets the engineering requirements, indicating that laser cleaning is a safe cleaning method. Finally, through the situ laser cleaning test, the cleaning effect and cleaning efficiency is considered, and the advantages of selective laser cleaning, small damage and good accessibility are also taken into account, the recommended level of laser cleaning on various occasions of petrochemical equipment is proposed, which provides a reference for the application of laser cleaning technology in the petrochemical field.

关 键 词：激光清洗 石化设备 应用研究 力学性能 

分 类 号：TN249[电子电信—物理电子学]