AUTOMATIC CONTROL SYSTEM rectification process

摘要

The invention relates to the refining industry and can be used for process control rectification units for atmospheric vacuum pipe heater (AVT), namely in the information-measuring technique applied at atmospheric vacuum distillation of oil.; The task on which the utility model is directed, is:; - to improve the accuracy of regulation of technological parameters (in particular, the consumption of raw materials);; - a process control efficiency;; - to improve the quality of the resulting product;; - to reduce the repair costs of equipment.; This object is achieved by the fact that the automatic control system the sensor and feed flow regulator rectification additionally introduced process to ensure stability installation work as well as the container and metering pumps for feeding a corrosion inhibitor and alkali reagent in Shlemova pipe column and the feed line to increase the service life of the installation of the equipment; in addition, in series with the sensor main process parameters includes an analog-to-digital converters, the outputs of which are connected to the microcontroller and to the output of microcontroller connected display apparatus with the ability to display the trend print reports, a recording device for archiving, while the control signal output from the microcontroller is directed to the raw material flow controllers, temperature and pressure of column top level in the bottom of the column and the temperature in the preheater.