检测水温对超声热能表流量测量的影响分析

The Influence and Analysis of the Water Temperature to the Flow Measurement of Ultrasonic Heat Meter

利用大口径热能表检定装置,进行25℃和50℃检测水温的DN100超声热能表的流量检测,分析温度修正和温度传感器准确度对超声热能表流量测量的影响。结果表明:有温度修正的超声热能表,在25℃和50℃的检测水温条件下,流量检测结果差异很小。因此,对于有温度修正的大口径超声热能表,可以考虑用常温水进行流量分量校准工作。

Using large diameter heat meter verification device,Flow detection of DN100 ultrasonic heat meter were 25℃ and 50℃temperature detection,The accuracy of ultrasonic heat meter flow measurement of temperature correction and temperature sensor.The results show that:A temperature correction of ultrasonic heat meter,In 25℃ and 50℃ detection temperature,Differences in flow detection results is very small.Therefore,The temperature correction of large caliber ultrasonic heat meter,Can consider to use room temperature water flow component calibration work.