PLC在味精发酵工段中的应用

PLC in monosodium glutamate fermentation process and application

是用可编程控制器控制味精发酵工段。温度和P H值是发酵工段中的主要影响因素,以此为依据设计的一套计算机控制系统。这套系统分上,下两层,上层是由工业计算机进行控制和显示:用WinCC生成主画面,编辑工艺流程画面,建立报警记录画面和趋势记录画面,最后进行组态。下层由SIMATIC S7-300构成,通过所编辑的程序,从现场采集数据,然后再进行控制输出。将上,下层连接起来,从而控制温度和P H值,不断提高发酵工段的产酸率,最终达到提高味精的产量和质量的目的。

Is PLC control section monosodium glutamate fermentation.Temperature and PH value is the main influence factors section in fermentation,on the basis of design of a computer control system.The system points,two layer,the computer is by industrial control and display： WinCC generated by the screen,editing process flow screen,establish alarm record the pictures and the trend record pictures,finally configuration.The lower the SIMATIC S7-300 structure,through the edited the program,from the data collection,and then control output.The will,and the lower connected,so as to control temperature and PH value,and constantly improve the fermentation of acid yield rate section,eventually to improve yield and quality of its purpose.