Condition Monitoring And Erosion Analysis Of Regenerator Based On Distributed Temperature Measurement Optical Fiber

Hot blast stove is an important accessory equipment in blast furnace air supply system,which provides hot air during steelmaking process.The condition of hot blast stove can influence the work of blast furnace directly.So condition monitoring and walls analysis of hot blast stove become the main concern of field operators.Traditionally,condition monitoring of hot blast stove was completed by observing color and sensing temperature of walls.This method failed to realize real-time monitoring and it also existed other problems,such as big error and inconvenient operation.At present,because of the lack of relevant literature at home and abroad,there are no more effective monitoring means.In recent years,with advantages of good stability,point location accuracy and multi-point continuous measurement,optical fiber temperature measurement has been widely used in industrial field.According to the regenerator of 3600m3 external combustion hot blast stove of in a certain steel company,this paper designed a regenerator condition monitoring and walls erosion analysis system,which based on the hardware support of distributed optical fiber temperature system(DTS)and the software support of ANSYS14.0,SQL Server2008,Visual Studio2013,and the theory support of heat transfer in regenerator.(1)The shell of regenerator was surrounded by optical fibers,and the corresponding temperature points of different altitudes and angles in optical fibers were marked.This could be the data foundation for the following calculation.(2)According to actual situation of research subject,a two-dimensional steady-state heat transfer model of regenerator furnace wall was established which based on model assumption,boundary conditions and erosion line.A finite element method was proposed to solve the mathematical model.(3)The whole framework and visual interfaces of the system were built on VS platform by using C# language.A finite element method was achieved by interface of VS and APDL language,temperature monitoring of shell was accomplished by interface of VS and distributed optical fiber temperature sensor,and data storage and query were performed by interface of VS and database.(4)The visual interfaces included parameters input interface,combustion calculation interface,temperature monitoring interface,erosion analysis interface.The system has been at the testing stage,and test result was good.The research of thermal analysis of condition monitoring and furnace wall in this essay has reference meaning to similar studies and explorations,and it also could be used as a reference for related research.