Corrosion Detection

A Blast furnace is an investment in the future. It is necessary that there is the proper dimensioning of all the equipment, systems and components as well as incorporation of technologies which assure the desired production and quality so that improved performance of the blast furnace can be achieved. Gas is one of the major resources of nature. Gas distribution across any part is processed by the method of pipeline. Pipeline transporting gas is vulnerable to internal corrosion when water form a part of transport fluid. Internal corrosion of flow line and pipe line is inevitable when gas contain corrosive species. The consequences of corrosion such as material failure, loss of production, leakage in pipeline. Early detection on any abnormality on the pipeline such as corrosion is essential for efficient management. The corrosion rate prediction is normally carried on using a selected model for corrosion prediction. One of these models is NORSOK model, an empirical model development by NORSOK for CO 2 corrosion prediction in straight pipes. The main objective of this research is to develop a method for early detection of corrosion in pipeline of Bhilai Steel plant. This will ensure than no leakage will take place due to effect of corrosion in pipeline. The corrosion rate is detected by using NORSOK CO 2 corrosion model. The commonly used sensors are temperature, pressure, flow sensor etc is used to measure temperature, pressure, flow rate and pH value which detect rate of corrosion. If rate of corrosion is max from ref. value then pipeline is corroded and by using ladder logic programming of PLC we can close the value of input pipeline and can be protected from harmful gas leakage. In the industrial field and monitoring their changes using PLC and HMI interface mounted in the control room. Based on the communication between transmitter and programmed PLC module certain alarm signals can be raised and safety and security of the Industry can be maintained. Since one end being a visual Monitoring and Control (PLC) it becomes uncomplicated for one to understand what phenomenon is taking place in the field. The ultimate goal of the project is detecting corrosion and continuously monitor and if corrosion is detected it can be control by using PLC.