Research And Application Of Key Equipment Monitoring And Maintenance Of High Pressure And High Concentration Slurry

In recent years, the country has been vigorously promoting the construction of a resource-saving society, pipeline transportation developed rapidly for its good environmental protection, low input costs and high reliability. With the maturity of the coal, oil and natural gas pipeline transportation technology, transportation of slurry pipeline developed gradually, and in high pressure and high concentration slurry pipeline transportation, the monitor and equipment condition maintenance of pipeline key equipment are two important aspects. Through the SCADA system and the mathematics pipeline system can realize the monitoring of key pipeline equipment, through the database of historical maintenance data can study the condition maintenance better, the specific content of the work is as follows:(1)The maintenance mode of slurry pipeline key equipment is not scientific, so a single equipment maintenance strategy was proposed based on multi-level fuzzy comprehensive evaluation method. The method can confirm the best maintenance mode according to the characteristics of different equipment, and it can not only bring economic benefits to the enterprise, but also can improve the safety of the equipment. The one-way valve equipment as the research object in this paper, First of all, established the mathematical model of multi-level fuzzy comprehensive evaluation, and then confirmed the value, influence factors of each level of evaluation factors and weight of each level, then established judgment matrix and made consistency check, and finally to determine the best way to repair the equipment by weights value of vector.(2)On the basis of equipment preventive maintenance model and maintenance cycle, the method of fuzzy decision absolute comparison was proposed to determine the equipment maintenance cycle. There are two optimization goals widely used in the research of equipment maintenance cycle, availability and cost ratio, firstly make maximum availability and minimum total cost as the goal respectively to determine the best maintenance cycle of the equipment, since only considering unilateral factor, and actual results have a certain bias, this paper proposes to make these two indicators as research object, the final results obtained with the actual production of the maintenance cycle is substantially the same, so this method can be considered to determine the maintenance cycle of the device.(3)For the complexity of multi-equipment maintenance problems, opportunistic maintenance policy was proposed to study multi-equipment maintenance problems. Multi-equipment maintenance needs to consider many factors, and opportunistic maintenance policy also needs to meet some certain conditions, so this method has certain restrictions to use, due to the level of research and time, just put a maintenance model, and whether the model is able to guide production has yet to be verified.