基于组态软件的阀门性能测试实验教学平台设计

Design of experimental teaching platform for valve performance test based on SCADA

为了开展阀门等机械设计类元件实验教学,设计并搭建了基于组态软件的阀门性能测试实验教学平台。针对该实验平台设置了三类实验:被测阀门的多样性及性能对比;全范围覆盖公称直径DN25~DN400的阀门性能测试;调节阀的动态性能测试等。通过实时数据采集及监测系统记录不同流量、压差、调节阀开度值时的被测阀门的阀流量、阀压降、流量流阻系数、压差-流量曲线、固有流量特性等。该平台不仅能够运用于“阀门性能检测及结构创新设计”实验教学,同时能够进行不同流量、不同压差、不同阀门的性能对比实验,为研究阀门性能及内部结构参数创新设计提供了实验基础。

An experimental teaching platform for valve performance test based on SCADA is designed and built for the experimental course of mechanical design components such as valves.Three kinds of experiments for tested valves are set up with the experimental platform:its diversity and performance comparison experiment;its performance test experiment covering the full range of nominal diameter DN25-DN400;dynamic performance test of regulating valve,etc.Through the data acquisition and automatic control system,the valve flow rate,valve pressure drop,flow resistance coefficient,pressure difference-flow curve,inherent flow characteristics,etc.,of the tested valve are recorded at different flow rates,pressure differences,and regulating valve opening values.The platform can not only be used in the experimental teaching of“valve performance detection and structural innovation design”,but also carry out performance comparison tests of different flows,different pressures difference and different valves,which provides an experimental basis for the study of valve performance and internal structural parameter innovation design.