High-pressure Reactor Of The Magnetic Drive Controller Design

The reactor is the container of a chemical reaction and widely used in petroleum, chemicals, pesticides, food, rubber, pharmaceutical and other industries. In its internal,chemical reaction process is complex and changeable, often accompanied by exothermic or endothermic. Temperature is an important chemical reaction conditions, the high and low temperature directly affects the quality of chemical reactions in the kettle, utilization of raw materials and so on. Therefore, reactor temperature control is a major part of industry, as a control object, nonlinear and time-varying, big lag and so on, these characteristics determine the reactor temperature control is the difficulty of control engineering. Indicators include the heating rate of temperature control, temperature has exceeded a given temperature overshoot and stability.Chemical machinery subject to limited production reactors (model GSH-0.5) for objects, in order to simplify the system without reactor cooling system, only reactor cooling by ambient air cooled, it can only control the heating furnace in the kettle to control the temperature of the reactor. Controller to temperature measurements in the kettle for feedback, using fuzzy Adaptive PID algorithm, heating voltage to the heating furnace in the reactor controls, implement closed-loop control. In order to make the safe operation of the reactor, and system status monitoring various parameters of reactor, the pressure inside the kettle, heating furnace of voltage and current, heating stirrer motor parameters such as speed and motor current monitoring, logging and alerting. System data collected is processed in real time, to determine whether the reaction Kettle work. System C8051F060as the primary selection of single-chip microcomputer chip. Inside with two16-bit resolution analog-to-digital converter, an8-channel10-bit resolution analog-to-digital converter, two12-bit resolution digital to analog converter.16-bit resolution analog-to-digital converter for temperature measurement, you can meet the required precision of temperature measurement requirements. Dropping temperatures through the10-bit resolution analog-to-digital converter parameters other than data collection. D/A output voltage control of most control of output values. Speed feedback signal is the measurement of the motor speed control. Motor control of reactor internal mixing of raw materials, motor speed control bad reaction materials full access, promoting the cooling of the reactor.Conventional PID control application wide, has a long history. Its control with a simple structure, stability, easy to adjust the parameters and so on. But it needs to be charged object has a precise mathematical model of the disadvantages. Response of Nonlinear and time-varying temperature object, large delay and so on, it is difficult to use a precise mathematical model to describe it. With conventional PID control fail to meet industrial requirements such as high precision and low overshoot. Fuzzy control is a rule-based language control. Does not need to be charged object has a precise mathematical models, robustness, and strong adaptability. Fuzzy control with steadv-state error.This paper analyzes the reactor control difficulty, using fuzzy Adaptive PID control algorithm to control the reactor temperature. Fuzzy Adaptive PID control using fuzzy control to correct PID parameters, you can compensate for the PID control needs to be out of control object on a precise mathematical model of, enhance the adaptability of PID.Subject to complete reactor controller hardware design, software and algorithm research of preparation.