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本文介绍了利用PLC控制器、数字智能调节器、网络技术构成的控制系统在氮气液化装置中的应用 ,并着重介绍了控制系统的网络结构及其系统风险分散的特性。
This paper introduces the application of PLC control system, digital intelligent controller and network technology in the nitrogen liquefaction plant. The network structure of the control system and the decentralized system risk are also introduced.