针对目前管道煤气计量中测量精度差或无法计量等问题,基于水的蒸汽压方程下,建立了工况下新的管道煤气流量计量模型和在线计量系统,应用表明,该在线计量系统不再要求建立管道煤气不同温度下所对应的水蒸汽饱和压力数据库,从而可以大大简化管道煤气流量计量软件,可快速准确地实现管道煤气流量实时在线计量。 Aiming at the problems such as poor measurement accuracy or unmeasurable measurement in current pipeline gas metering, a new pipeline gas flow measurement model and on-line metering system under operating conditions are established under the water vapor pressure equation. The application shows that the on-line metering system no longer requires Establishing a database of water vapor saturation pressure corresponding to different temperatures of pipeline gas can greatly simplify pipeline gas flow measurement software and can real-time measure gas flow in pipeline on a real-time basis.