摘要
由于油、气、水三相介质及固相介质的作用,在役三相分离器的腐蚀问题较为严重,极大地降低了三相分离器的承压能力,影响其安全运行和使用寿命。因而,建立了含腐蚀缺陷的三相分离器的数值计算模型,研究了腐蚀缺陷分别位于筒体和封头部位时的三相分离器剩余强度。结果发现:同一缺陷在不同位置时导致分离器腐蚀区域的应力分布情况不同;在腐蚀缺陷部位的应力集中现象较为严重,远离腐蚀缺陷处的分离器本体应力分布较为均匀;当相同腐蚀缺陷位于三相分离器封头部位时,分离器更易失效。
There is a serious corrosion phenomenon in the three-phase separator for the associative action of oil,gas,water and solid medium.It greatly reduces the bearing capacity of the three-phase separator,and affects its safe operation and service life.In this paper,the model of a three-phase separator with corrosion defect was established.Residual strength of the three-phase separator was studied when the corrosion defect was in cylinder and dished head respectively.The results show that the stress distributions of the three-phase separator are different when the same defect in different position.There is a serious stress concentration phenomenon near the corrosion defect.But the stress distribution is more homogeneous in the part away from corrosion defect.When the same corrosion defect is located on the dished head,the three-phase separator is more prone to failure.
出处
《机械工程与自动化》
2017年第2期159-160,163,共3页
Mechanical Engineering & Automation
关键词
三相分离器
剩余强度
数值仿真
腐蚀缺陷
three-phase separator
residual strength
numerical simulation
corrosion defect
