Which is a good snail street flowmeter?

『Vortex Street flowmeter』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)

1. Can the flow meter of pipeline liquefied gas measure natural gas?

The flow meter of pipeline liquefied gas can measure natural gas. The specific explanation is as follows: Applicability of flowmeter body: Pipeline liquefied gas flowmeter usually uses worm gear flowmeter or vortex flowmeter as the body. The design principles of these flow meters enable them to be applicable for flow measurement of various gases, including liquefied gas and natural gas. Header function: The flowmeter is equipped with a header with temperature and pressure compensation function or multi-stage correction function, which helps ensure measurement accuracy in different media and working conditions. Therefore, with appropriate parameter settings, the same flowmeter body can be used to measure different gases. Difference in parameter settings: Although flow meters for measuring liquefied natural gas can be used to measure natural gas, attention should be paid to the difference in parameter settings, especially the setting of medium density, when using them. Due to the different densities of liquefied gas and natural gas, it is necessary to adjust the corresponding parameters to ensure measurement accuracy when using the same flowmeter to measure different gases. In summary, with appropriate parameter settings, the flow meter for liquefied gas in pipelines can be fully used for measuring natural gas.

2. What parameters are related to the speed of a vortex flowmeter?

The measurement slip and roundness speed (i.e. instrument display or output frequency) of a vortex flowmeter (usually referring to a vortex flowmeter) is mainly directly related to the following parameters.

1. Fluid physical parameters • Flow rate: Fl

2. Instrument structural parameters • Shape and size of vortex street generators: The Strouhal number (St) of different shapes such as triangular and trapezoidal columns varies, directly affecting the conversion relationship between frequency and flow velocity. • Pipeline diameter: The larger the diameter, the lower the flow velocity at the same flow rate, and the corresponding output frequency decreases

3. Working environment parameters • Temperature: affects fluid density and viscosity, indirectly changing instrument coefficients (temperature compensation is required). • Pressure: High pressure may alter pipeline deformation and fluid density, requiring pressure compensation calibration

4. Signal processing parameters • Amplifier filtering settings: Improper cutoff frequency of high/low-pass filters can suppress effective signals. Sensitivity threshold: If the threshold is too high, it will miss low-frequency weak signals, while if it is too low, it is easy to introduce noise. Please note that the original output frequency of the vortex flowmeter is only related to the flow velocity and geometric characteristics of the generating body (f=St × v/d, where St is the Strouhal number, v is the flow velocity, and d is the characteristic width). Other parameters mainly affect t

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