1. The advantages of orifice flowmeter measurement1. The standard throttling parts are all used and recognized by the international standard organization. They can be put into use without real-flow calibration, and they are also unique among flow sensors;2. The structure is easy to copy, simple, strong, stable and reliable in performance, and low in price;3. A wide range of applications, including all single-phase fluids (liquid, gas, steam), partial mixed-phase flow, pipe diameters and working conditions (temperature, pressure) of ordinary consumption processes can be measured;4. The detection parts and the differential pressure display instrument can be produced separately from different manufacturers, so they can be produced in a specialized range.2. Defects in orifice flowmeter measurement1. The repeatability and accuracy of measurement are moderate in flow sensors. Due to the confusing and confusing effects of many elements, the accuracy is difficult to improve;2. The range is narrow, because the flow coefficient is related to the Reynolds number, the general range is only 3:1～4:1;3. There is a long straight pipe length request, which is generally difficult to meet. Especially for larger pipe diameters, the problem becomes more prominent;4. Large pressure loss;5. The orifice plate has an acute angle line inside the hole to ensure accuracy, so the sensor is sensitive to corrosion, abrasion, fouling, and dirt. It is difficult to guarantee the accuracy of long-term use, and it needs to be removed and inspected once a year;6. The use of flange connection is easy to cause running, emitting, dripping and leakage problems, which greatly increases the maintenance workload.
Post time: 21-09-21