Experimental Study on Measurement Error of Clamp-on Ultrasonic Flowmeter under Nonstandard Installation Conditions
In order to improve the measuring accuracy of external clamped ultrasonic flowmeter under non-stand-ard installation conditions,this paper takes DN100 pipeline as the research object,builds L-shaped bend pipe,L-shaped taper pipe and L-shaped gate valve spoiler under non-standard installation conditions,and studies the measuring error of external clamped ultrasonic flowmeter under non-standard installation conditions.The results show that:in order to ensure the measuring accuracy of the external clamped ultrasonic flowmeter,the length of the straight pipe section of the front end of the flowmeter should be controlled not less than 5 D if there are elbow or el-bow+taper pipe in the pipeline.For elbow+gate valve in the pipeline,the length of the front straight pipe sec-tion of the flow meter should be controlled at about 10D.
万方数据
维普
