针对大化肥生产装置中的四大透平机组，建立起多机组在线状态监测网络系统，并对系统的数据采样通道、网络结构、监测和诊断功能等方面作了论述。 Aiming at the four turbine units in a large-scale fertilizer production plant, a multi-unit on-line condition monitoring network system is established and the data sampling channels, network structure, monitoring and diagnosis functions of the system are discussed.