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Computer control system requirements for steel pipe heating induction heating equipment:
1. Self-learning control mode , complete self-tuning of parameters:
First call the process recipe template to set power, then the use of self-learning control, complete self-tuning parameters, and ultimately achieving control system requirements. After the steel tube is heated, the temperature reaches 1100 °C.
2 , using a reliable and optimized control algorithm to achieve temperature closed-loop control:
The production line adopts PLC automatic temperature control and is equipped with three infrared thermometers. The detection temperature is the middle of the two sets of equipment, and the entrance and exit of the whole production line.
The first infrared thermometer at the entrance of the furnace detects the initial temperature of the steel pipe before entering the heating furnace, and feeds back to the temperature control system of the first set of equipment, so that the output power meets the 60% of the steel pipe to the final temperature (according to the actual Set), a second infrared thermometer is installed at the inlet of the first set of equipment and the inlet of the second set of induction furnace to detect the temperature difference between the real-time temperature and the target temperature of the steel pipe, and then pass to the PLC control The output power of the two sets of equipment enables the temperature of the online steel pipe to reach the set process temperature.
The third infrared thermometer set in the induction furnace displays the final temperature of the steel pipe in real time, and feeds the temperature difference of the target temperature to the PLC to control the basic power of the two sets of equipment to fine tune the difference of objective reasons such as room temperature, season and environment. The temperature change caused. Temperature-closed loop control is achieved using a reliable and optimized control algorithm.
3 , process settings, operation, alarm, real-time trend, history screen display requirements:
1. Dynamic tracking display of steel pipe running position.
2 , the temperature of the steel pipe before and after heating, the voltage, current, power, frequency and other parameters of the various intermediate power supply, charts, bar graphs, real-time curves and historical curves.
3. Display of setting values of steel pipe heating temperature, steel pipe diameter, wall thickness, conveying speed, power supply, etc., and calling and storage of process recipe template screen.
4 , overload, overcurrent, overvoltage, phase loss, control power supply under voltage, cooling water pressure is too low, cooling water temperature is too high, water flow is too low, card tube and other fault monitoring display and record storage.
5 , report printing , including steel pipe heating system table, fault history record table, etc.
4 , process formulation management:
Products with different specifications, materials and temperature rise curves should have corresponding process recipe templates (which can be gradually shaped in the actual production process), the set values and process control PID parameters can be corrected in the template , and the corrected recipe can be saved.
5 , operator hierarchical management
The system administrator, production supervisor, and operator log in at three levels.
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