Vortex flowmeter measurement inaccuracy solution

1. Reasons for inaccurate measurement of vortex flowmeter

1. Fluid characteristics

The measurement accuracy of vortex flowmeter is affected by fluid properties, such as fluid temperature, pressure, density, etc. The viscosity and rheological properties of the liquid also affect the accuracy of the flow meter measurement. If the viscosity of the fluid is too high or contains too much particulate matter, the metering accuracy will be affected.

2. Installation of flow meters and pipelines

There are pressure pulsations and fluid vortices at the connection between the vortex flow meter and the pipeline, which will cause noise and vibration, thus affecting the measurement accuracy. . In addition, during pipeline installation, if the length, size, shape and angle of the pipeline change unevenly, it will lead to uneven velocity distribution of the fluid, resulting in measurement errors.

3. Usage environment

Environmental factors will also affect the measurement accuracy of the vortex flowmeter. For example, changes in water quality, climate change, electromagnetic field interference, etc. In addition, long-term use of the flow meter will also cause wear and aging, thus affecting the measurement accuracy.

2. Solutions to inaccurate measurement of vortex flow meters

1. Fluid characteristics

In view of fluid characteristic factors, the physical and chemical properties of the fluid must first be maintained Unchanged, such as fluid temperature stabilization control. In addition, it is also critical to select the appropriate fluid. Fluids with low viscosity and excellent fluidity should be selected to improve measurement accuracy.

2. Installation of flow meters and pipes

For installation problems, you can appropriately increase the length of the pipe, reduce right-angle elbows, standardize the size and direction of the pipe, etc., thereby reducing the vortex of the fluid and noise. In addition, noise reduction measures and vibration reduction measures can also be adopted to effectively improve the measurement accuracy of the flow meter.

3. Usage environment

For the use environment factors, the vortex flowmeter should be inspected and maintained regularly, and the parts in the flowmeter should be cleaned and replaced in a timely manner. Place and use it reasonably and try to avoid problems such as electromagnetic interference and frequent switching on and off.

Inaccurate measurement is a common problem in the use of vortex flowmeters. This article explains the measurement from three aspects: fluid characteristics, installation issues and use environment. The causes and solutions of inaccuracy, I hope it can help everyone solve the problem of measurement accuracy of vortex flowmeter.