The Design And Research Of Magnetic Flux Leakage Testing Data Collection And Analysis System

In the current electricity supply shortage, as main power supply, the thermal power plant annually provides about 63% electricity that the whole national consumption every year. However, because of the poor manufacturing quantity and the unscientific management, the safety and cost-effective of the thermal power plant is influenced seriously by the tube explosion and leakage. In order to decrease and prevent the incidents happening,and to improve the boiler tube inspection quality,it is very important for us to search for an quantitative inspection method and develop an effective apparatus for testing boiler tube. Power station boiler tubes for corrosion defects in security, rapid detection of the actual needs of the development of a set of digital magnetic flux leakage testing equipment.This article first briefly introduces the method of pipeline inspection technology, meaning, based on magnetic flux leakage pipe inspection device components and functions, work processes, combined with today's DSP processing data signal acquisition card and other hardware devices, discusses the design of the hardware system boiler .Secondly, the significance of magnetic flux leakage data analysis and software system functions start. Using the dynamic link library DLL interface functions , file systems , multi-threaded processing speed and the advantages of setting up multiple read data buffer address for data reading and displaying slow problem. Vast amounts of magnetic flux leakage data for the study of the magnetic flux leakage data arranged in the main data file format. Outliers based on magnetic flux leakage pipeline data and the curve of the corresponding amplitude change between different types of magnetic flux leakage data to different storage methods were studied based on magnetic flux leakage signal characteristics reflect the characteristics of channels to study the defects of the recognition pipeline;tag files with the ground to study the corrosion defect localization.Finally, the use of software development tools overview of the actual preparation of the power plant boiler test data analysis software system playback. Analysis of abnormal causes magnetic flux leakage data, magnetic flux leakage data presented real-time data mining program. Playback system uses software to analyze the data structure and database design, performance and operation of demand from the data analysis to meet the requirements of the non-normal data the causes of magnetic flux leakage, magnetic flux leakage data presented real-time data mining program. Power station boiler tubes from the pipeline characteristics of data collection and analysis of needs, establishment of the general number of boiler tube boiler pipe architecture of data mining and analysis of boiler pipes in power plant boiler tubes of the key issues of data mining, data mining methods discussed Pipeline.