Study On Integrated Maintenance Management System Of Power Equipments For Process Industry

For process industry, such as power plant, metallurgical plant, chemical plantand so on, MRO(Maintenance, Repair, Operation) of productive equipments,especially power equipments, are justifiably very important to enterprise'sproductive activities. Repair of fault equipment can lead to tremendous productiveloss, which calls for proper and exact maintenance scheme, and very shortresponse hours when it becomes to a research project of great importance in plantmaintenance field. Under the situation, the paper presents specific effectivesolution,i.e.,ICBEMM(Integrated Condition-Based Enterprise MaintenanceManagement).The proposed system can carry out comprehensive managementduring equipment's serving life, which brings about considerable economic andsociable benefit.The paper firstly reviews various theories of plant maintenance internal andoverseas in different period of time, and summarizes to their disadvantages inpractice, and finally points out the problem and measure for process industry. Theestablished ICBEMM, whose goal is soft maintenance management, proposesintegration of CBM(Condition-Based Maintenance) and PM(PreventiveMaintenance), which can avoid excessive or scant maintenance of PM and the riseof maintenance cost and difficulty of CBM. ICBEMM, discussed respectively infunctional and organizational level, shows its necessity, unexampled superiorityand maneuverability. Theory of PM, repair-task scheduling and spare-part stockcontrol are also studied in this dissertation.Technologies of condition monitoring and fault diagnosis are introduced. Inview of the different fault rate and essentiality of power equipments, themaintenance policy of route inspection management and on-line monitoring areprovided with their own solution, truss and functions. The presented reasonableFault Diagnosis Report (FDR) bridges the maintenance management andcondition monitoring without "information island ".Workorder-oriented management mechanism of repair process is firstlycreated for ICBEMM. Organization pattern, static structure and dynamic behaviorof Workorder management system are intensively researched based onUML(unified modeling language). Workorder-oriented management can not onlymake repair process efficient, but can translate personal experience and basicknowledge into enterprise-level shared resource, which directly builds up thefoundation to maintenance scheme.MAS(Multi-Agent System) based ICBEMM theoretically possesses theabilities of reengineering and reconfiguring at functional and structural level forHAD(Heterogeneous, Autonomous, Distributed) enterprise's informationenvironment, which easily meets the need of enterprise's distributed maintenancemanagement. Intelligent ICBEMM can guide practical maintenance exercise forprocess industry, and furthermore upgrade enterprise's plant management level.The development architecture and critical software technology of ICBEMMare discussed finally. Successful execution of ICBEMM in certain Tianjin's powerplant indicates better accuracy and more function with further use. ICBEMMultimately achieves its goal-soft maintenance management.