Research and development of automatic determination instrument for petroleum products
In view of the problem of poor temperature detection control and liquid level tracking,which reduces the distillation rate of oil products and control efficiency.Firstly,the instrument mainly uses STM32F103RCT6 SU and STM32F103C8T6 SU as the main auxiliary controller to realize temperature detection,temperature control and liquid level tracking through two SU;then uses the AD7705 converter to measure oil steam temperature.Finally,based on the oil distillation characteristics of different stages,oil distil-lation rate control,condensate tube and receiving chamber temperature control are realized by combining segment PID control and PID parameter setting.The results show that the error between the measured value and the theoretical temperature is controlled within 0.1 ℃,and the temperature measurement is more accurate.Moreover,the actual temperature of the condensate pipe by the segmen-ted PID and PID parameters is stable at about 3℃and the beating amplitude is 0.1 ℃;the distillation rate is controlled within 4.3～4.8 mL/min to meet the requirements of automatic determination of the instrument.This shows that the designed instrument can a-chieve accurate temperature measurement and control,and the measurement rate and control efficiency is significantly improved.
automatic determination of distillationtemperature controllevel trackingPID control and self-setting
万方数据
维普
