Induction heating system for large-diameter seamless steel pipe thermal expansion and temperature compensation

　　●Power parameters:Double rectifier twelve-pulse 1000KW-10000KW/200HZ-2500HZ,single power supply can be used independently or multiple power supplies can be used in parallel.

　　●Running roller:The feeding group,sensor group and discharging group are all controlled by frequency conversion coefficient,so that there is no gap in continuous heating,improving the quality and production efficiency of steel bars.

　　●Guide system:304 stainless steel guide wheel is adopted,and the digital encoder automatically adjusts the height of workpieces with different parameters.

　　●Temperature closed-loop system:Unique forward feedback+backward feedback combined temperature control method,according to the furnace entry temperature and position feedforward system automatically matches the power segment

　　supply,according to the furnace exit temperature feedback system further corrects the power value,when the furnace entry temperature difference is 300℃,the furnace exit temperature difference can be controlled within 20℃

　　●Recipe management function:Powerful recipe management system,after entering the steel type,outer diameter,wall thickness parameters to be produced,the relevant parameters are automatically called,and no need to

　　manually record,check,and enter the parameter valuesrequired for various workpieces.

　　▲Energy conversion:Heating one ton of steel to 1050℃consumes 310 to 330 degrees of electricity.