【作者】 喻健良； 陈鹏； 项忠维； 李卫东；

【Author】 YU Jian-liang CHENG Peng XIANG Zhong - wei LI Wei dong (Chemical Machinery of Dalian University of Technology, dalian 116102; Dalian Petrochemical Corporation, dalian 116031)

【机构】 大连理工大学化机系； 大连石化公司机动处；

【摘要】 大连石油化工公司的催化油浆闸板在温度为340℃、压力0.8MPa、流通介质为催化油浆的工作环境下,在使用寿命期内失效。通过对失效阀板进行宏观检验和材料、金相等机械性能测试试验,并结合他人在相关方面的研究成果,分析证明了冲刷和空蚀是造成阀门失效的主要原因。最后,针对失效原因提出了几点改进建议。更多还原

【Abstract】 The decnet oil valve of Dalian Petrolchemical Coporation failed in its life time. The working temperature is 340℃,working pressure is 0. 8MPa,the flowing medium is catalysis oil. It is proved that the failure reasons are the erosive and cavitation erosion, by exterior inspection, metallographic examination and mechanical testing on the valve; whatis more, reference of some others fresearches. In the end, some improving measures about the failures are given.更多还原