Inspection plan for refinery exchanger

摘要

Q:What is a good plan for refinery heat exchangers that have been in service for more than l) years to optimize their run life without any likelihood of failure during operation? How can we assess the condition of the tube bundle to minimize the chance of any leaks during operation? In the past, we have observed that the tube bundle, having been assessed by eddy current and rotary ultrasonic wall thickness measurement techniques, have had leaks during operation.