Your position: Home > News

The Reasons For The Error In The Vortex Flowmeter

2019-11-16
 The Reasons For The Error In The Vortex Flowmeter
 
Vortex flowmeters have been widely used in industry, and the effects are becoming more and more important. If the vortex flowmeter measurement data is inaccurate during use, The cause of the error in the vortex flowmeter as below.
 
1. Problems in selection
The actual choice should be chosen to be as small as possible to improve measurement accuracy, for example, eddy current piping is designed for multiple devices. Since the device part of the process is sometimes not used, the actual flow is reduced,
resulting in actual use. The original design selection aperture is too large, which is equivalent to increasing the measurable lower flow rate and does not guarantee an indication of small process pipe flow. It can also be used when the flow rate is high,
as it is sometimes too difficult to rebuild.
 
2. The effect of temperature on measurement
Temperature affects the general flow meter to measure the medium. The temperature affects the density, viscosity, etc. of the medium, which can make the measurement results inaccurate and inaccurate. 
Currently, some manufacturers' flow meters have fixed temperature correction and real-time temperature correction in software.
 
3. Influence of the vortex flowmeter on the upstream surface of the vortex generator
If there are viscous particles in the fluid to be measured, it may gradually accumulate on the surface of the vortex generator, and its geometry and size will change, so the flow coefficient will also change accordingly. Therefore, it should be cleaned during use.
 
4. The influence of the inconsistency between the internal flow of the vortex flowmeter and the flowmeter
 
5. The installation problem
The installation problem is mainly the length of the straight pipe section in front of the vortex flowmeter sensor. If the length is not enough, the measurement accuracy is affected.
 
7, the installation problem
The installation problem is mainly the length of the straight pipe section in front of the vortex flowmeter sensor. If the length is not enough, the measurement accuracy is affected.
 

share:

Pre: Application of Electromagnetic Flowmeter in Metallurgical Industry
Next:Troubleshoot of Metal Tube Rotameter