Study of Online Diagnosis of Corrosion Failures in Seawater Secondary Circulation Cooling Equipment
To complete the accurate diagnosis of corrosion failures in secondary circulation equipment in a short time,the online diagnosis method of corrosion failures in seawater secondary circulation cooling equipment is proposed.According to the working parameters of the cooling equipment circulating unit,the normal operation state function of the equipment before the appearance of corrosion failure is constructed.By combing the corrosion fault generating factors and environmental conditions,the constraints are set,and the influence factor of the corrosion fault location of the cooling equipment is determined.The determination coefficient of each fault location is calcutated,and the fault location online is determined.By side-by-side comparing the mechanical data of nodes at different locations in the cooling equipment pipeline,and calibrating and analyzing the determination coefficients of the fault location,the index quantity of the determination coefficient of the corrosion fault location of the cooling equipment are obtaived.The pooling layer of short-term memory network is maximized innovatively and based on the fault location determination coefficients and index quantities,the actual trigger value and set value of corrosion faults are solved,so as to realize the online diagnosis of corrosion faults of equipment.Test results show that the diagnostic accuracy of the proposed method is above 97％.The method is characterized by fast effect,short time,accurate diagnosis,and stable effect,and it can cope with most of the current online diagnosis tasks of corrosion faults of seawater secondary circulation cooling equipment.
万方数据
维普
