国产欧美精品一区二区,中文字幕专区在线亚洲,国产精品美女网站在线观看,艾秋果冻传媒2021精品,在线免费一区二区,久久久久久青草大香综合精品,日韩美aaa特级毛片,欧美成人精品午夜免费影视

The health evaluation of refinery units focuses on the field of fault detection and fault diagnosis. This technology can only monitor whether there is a fault in the field device, and it is difficult to find potential abnormalities or faults that may occur during the long-term operation of the device. To solve this problem, a novel device-level health evaluation system is proposed. The evaluation system establishes three evaluation index systems including process grouping health, safety interlock health and energy consumption and environmental health, so as to calculate the overall health of the catalytic reforming unit. The evaluation system is based on a hierarchical analysis to determine the weighting of each level, and then a control loop anomaly detection technique combined with a set of scoring rules to calculate the process group health. The safety interlock system is reproduced according to the early warning mechanism, and the energy consumption and environmental protection indicators are analyzed to obtain the overall evaluation results of the device. The proposed evaluation system is applied to an example of a catalytic reforming unit in a refinery. The results show that the method can be used for quantitative and reasonable evaluation of catalytic reforming units.