System and method for controlling beer fermentation based on DCS

Abstract

The invention discloses a system and a method for controlling beer fermentation based on DCS. The system comprises an ice water control device, an intelligent numerical control meter and a touch screen, wherein the ice water control device cools a fermentation tank when the temperature in the fermentation tank is higher than a set temperature; the intelligent numerical control meter is used for acquiring state signals of the fermentation tank in real time and sending the acquired signals to the touch screen; and the touch screen is used for centralized display of the state signals and settingor modification of main control parameters, and controls the ice water control device to work when the temperature in the fermentation tank is higher than the set temperature. The system and the method can realize synchronization of on-site supervision of the temperature and pressure of the fermentation tank and supervision of the touch screen, avoid the environmental disturbance problems generated during the transmission of the state signals of the temperature, the pressure and the like, and improve the temperature measuring precision; and because the intelligent numerical control meter directly controls a gas valve and a water valve, the actuating time of an on-site valve body is improved so that the temperature display is more accurate in a fermentation process and the motions of the valve body and a pump body are quicker so as to remarkably improve the fermentation effect of the fermentation process.

Description

technical field [0001] The invention relates to the field of beer fermentation control, in particular to a DCS-based beer fermentation control system and method. Background technique [0002] At present, in the fermentation process control of the beer industry, most of them adopt the control method combining industrial computer, display, configuration software and PLC. The combination of industrial computer, display and configuration software is used for the switch state collected by PLC , Display of analog value. [0003] The working process of the PLC control system: PLC is the core of the control system. Use special programming software to program the various switches and analog quantities to be controlled by the PLC. The program is downloaded to the PLC controller. Connect the start, stop, and operation status signals of field equipment pumps and valves to the I / O terminals of the PLC according to the addresses set inside the PLC. Analog quantities, such as temperature...

AI Technical Summary

Problems solved by technology

Due to this control method and monitoring method, the transmitter is often disturbed by the site environment, the temperature measurement accuracy is low, and the control effect is not ideal, resulting in unstable beer quality

There are many intermediate links in PID control. In the process of receiving and sending data, the transmitter signal transmission process is greatly affected by the environment, which reduces the accuracy of the signal, thus affecting the control action time and control effect.

[0005] In addition, the cost of the PLC control system is high and cannot meet the production requirements of some users

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