Products overview:
ZWS - 100 - f seriesExplosion-proof type ultrasonic flowmeterFeatures elaborate high-end beauty, made of aluminum and stainless steel 316 l is optional, is mainly used in coal mine, oilfield, petrochemical, and gasoline and diesel have explosion-proof requirements occasions flow measurement, the use of advanced digital signal analysis method and multiple pulse technology, digital processing and self diagnosis error correction technology, can be measured is clean and the vast majority of turbid liquid to provide accurate measurement, no drift in the coal mine wastewater, coal washing water and oil field downhole negative situations, such as sewage, obtaining good results in application, bring great convenience and efficiency to customers;Adopted the advanced, effective resistance from frequency conversion device, electromagnetic field and the interference of the fluctuation of the system flow;Providing professional fixture fixed clamp type sensor, fast and reliable;Select insert type sensor can achieve ideal accuracy, on the premise of correct installation, insert the sensor precision is better than that of 1%, will not result in silt, blocking and pressure loss, because there is no parts can cause accumulation and pollution, also do not contain can wear of moving parts, so rarely need maintenance.
Second, the working principle:
ZWS - 100 - f seriesExplosion-proof type ultrasonic flowmeter by using the theory of measuring the ultrasonic transmission time in the pipeline.Medium (liquid) flow velocity in the pipe, and a lag between the time of ultrasonic propagation along the downstream and upstream of medium with linear relationship.As long as measure the ultrasonic propagation time of downstream and upstream respectively, can be obtained on the basis of the linear relationship at various points along the pipeline route on the velocity of the instantaneous average flow velocity.In this way, the medium flow can be obtained by flow rate, pipe cross-sectional area and the Reynolds number.
When ultrasound beam propagation in the liquid, the flow of the fluid produces small changes will make the travel time, and the propagation time of change is proportional to the liquid flow rate, which can calculate the flow rate of the liquid.
