壁厚异常是压力容器检验时,经常遇到的问题,壁厚异常基本有两种缺陷模式,腐蚀减薄和夹层,腐蚀减薄可以根据最小壁厚,应用强度校核来确认设备是否可以继续使用,而夹层缺陷却常常难以处理,这就需要全面分析,以确保设备的安全运行,减少使用单位因更换设备造成不必要的经济损失。 Wall thickness anomaly is often encountered in pressure vessel inspection. There are basically two kinds of defect modes in wall thickness abnormalities. The corrosion thinning, interlayer thinning and corrosion thinning can be checked according to the minimum wall thickness and applied strength to confirm whether the equipment can continue Use, and mezzanine defects are often difficult to handle, which requires a comprehensive analysis to ensure the safe operation of equipment, reduce the use of units due to replacement equipment caused unnecessary economic losses.