摘要
热电偶保护套管用于常减压装置中的减压转油线。由于其处在高温、负压状态下,受气液两相流的高速冲刷,易出现套管断裂现象。文中通过对减压转油线热电偶套管断裂原因的分析,提出防止电偶保护套管断裂的改进措施,延长了热电偶套管的使用寿命。
Thermowells are used for vacuum transfer line of atmospheric & vacuum distillation unit.As they are under high temperature and negative pressure and high speed flushing by both liquid and gas,thus their casing tubes are easily to fracture.This paper made analysis on the cause for fracture of thermowells in vacuum transfer line,and put forward improvement measures for preventing thermowell from fracturing.
出处
《炼油与化工》
2011年第5期68-71,90,共4页
Refining And Chemical Industry
关键词
热电偶套管
振动频率
断裂
thermowell
vibration frequency
fracture
