A Life Management Method on In-Service Equipment in Refining Unit

A life management approach on in-service device in refining unit was presented in this paper. By means of this method, corporate resources can reasonably be allocated. And a long-term operation of the equipment can be ensured. First, according to the type of the equipments, statistical analysis of equipments was carried out to obtain the life stages: early life stage, middle life stage, late life stage, extended life stage. Then, based on damage mechanism residual life of the equipments was calculated out. At the same time, the recommended maintenance cycle was given. If the operational life of the equipments cannot meet the expected life, the cause analysis should be done. The subsequent processing steps, such as maintenance, repair and renewal were proposed. Next, the equipments in the corporation were classified. For different class of the equipments, the different management methods were given. Finally, a re-evaluation of life was conducted.