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案例频道作者：王云飞（1990-），河北石家庄人，工程师，专科，现任北京和利时智能技术有限公司高级技术支持，主要研究工业自动化控制系统的应用，在水务行业经验丰富。
摘要：本文针对鼓风机喘振现象，提出了基于PLC控制器的鼓风机防喘振控制系统。根据鼓风机的喘振特性曲线，分析喘振现象发生的原因及主要因素，通过PID调节来控制鼓风机的运行状态，使鼓风机的工作点处于安全区域。该系统采用和利时LK大型PLC设计，通过计算鼓风机的运行参数，对防喘阀进行实时调节，避免喘振的发生，从而提高设备的使用寿命，保证了污水处理厂的稳定运行。
关键词：鼓风机；PLC；防喘振；PID
Abstract: Aiming at the phenomenon of blower surge, this paper proposes a blower anti-surge control system based on PLC controller. According to the surge characteristic curve of the blower, the causes and main factors of the surge phenomenon are analyzed. The operation state of the blower is controlled by PID adjustment, so that the working point of the blower is in a safe area. The system adopts Hollysys LK PLC design. According to the calculation of the operating parameters of the blower, the anti-surge valve is adjusted in real time to avoid the occurrence of surge, so as to increase the service life of the equipment and ensuring the stable operation of the sewage treatment plant.
Key words: Blower; PLC; Anti-surge; PID
摘自《自动化博览》2020年10月刊
北京市公安局海淀分局备案号：11010802023656号