Different working conditions, how to choose the right natural gas flowmeter？
2021-05-26
The correct selection of natural gas flow meters on the accurate measurement of flow has a very important meaning, the same working conditions to select different flow meters on the final measurement results must be quite different.
If the natural gas flow meter is not selected properly at the beginning, seriously, it can even lead to the quantity measurement can not be carried out and cause damage to the appearance, so for the appearance protection personnel, it is necessary to have a correct know about how to choose the appropriate flow meter, and understand some fundamental selection methods, which will help to make mistakes in the selection of appearance. Below, Aister instruments manufacturers have sorted out the selection reference of natural gas flowmeters in different working conditions for us in detail, hoping to help us.
In order to ensure that the flow appearance plays a better and more accurate role in the production site process, the selection of natural gas flowmeters, in general, it is necessary to depend on the medium of measurement required by the production site.
The difference between different varieties of natural gas flowmeters is that the measurement principle is different, and the customary working conditions are very different.
1. Ultrasonic gas flowmeter
The transmission time method and Doppler effect method are the methods often used by ultrasonic flowmeters to measure the average speed of the fluid. It is also a non-blocking flowmeter. If the ultrasonic transmitter is installed outside the pipeline, there is no need to stab it.
2. Turbine natural gas flowmeter
When the flow rate of the fluid flows through the turbine, the fluid makes the rotor rotate, the rotation speed of the rotor is related to the speed of the fluid, and the flow rate or total amount can be derived from the average flow rate felt by the rotor, which can accurately measure the clean liquid and gas. Like differential pressure throttling flowmeters, turbine flowmeters can also cause pressure errors that do not heal, and they also require moving parts.
3. Differential pressure natural gas flowmeter
Choose from a wide range of flow measurement skills, including orifice, V-cone, Venturi and sonic nozzles, as well as uniform pitot flow meters such as Weiba, Anoba and Deltaba flow meters, to measure the flow rate of most liquids, gases and vapors. The differential pressure flowmeter has no moving part, is widely used and easy to use, but after blocking, it will lose pressure, affecting the accuracy, the accuracy of the flowmeter precision measurement depends on the accuracy of the pressure measurement surface.
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