The excessive speed of the vortex flowmeter may result in inaccurate readings.
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1、 The reason for the high speed of vortex flowmeter
The excessive speed of the vortex flowmeter may result in inaccurate readings. The reason for the excessive speed may be due to excessive pipeline flow, small pipeline diameter, low viscosity of the operating fluid, and low density. Therefore, measures need to be taken to slow down the speed of the vortex flowmeter.
2、 Methods adopted
1. Increase the diameter of the pipeline
If the diameter of the pipeline is small, it is necessary to increase the diameter of the pipeline, as this can reduce the overall flow velocity in the pipeline. Because the slower the flow rate, the slower the rotational speed of the vortex flowmeter will be. This method requires reinstalling the pipeline and additional investment.
2. Install throttling device
Installing a throttling device can slow down the flow rate, thereby reducing the speed of the vortex flowmeter. For example, throttling devices such as orifice plates, nozzles, and throat pipes can be used to reduce the flow velocity of the fluid at the measurement point.
3. Increase density and viscosity
Viscosity and density enhancers can be added to liquids during manufacturing processes and usage. Increasing viscosity and density will increase resistance, thereby slowing down the speed of the vortex flowmeter. In some cases, you need to conduct experiments to find the optimal ratio to ensure accuracy.
4. Replace the vortex flowmeter with a suitable size
If all methods fail to slow down the speed of the vortex flowmeter, it is necessary to replace it with a suitable size vortex flowmeter, so that a larger flowmeter can be installed after selecting a larger pipeline to avoid excessive speed.
The above are several main methods that can help slow down the speed of vortex flowmeters. Of course, there are other methods, such as changing the manipulated fluid, changing the temperature, etc., but these methods can be cumbersome and impractical in practical operation. In short, using appropriate methods can keep the speed of the vortex flowmeter within the normal range, ensuring the accuracy of the measurement results.