Vortex turbine flowmeter

『Vortex turbine 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)

What are the differences between a vortex flowmeter and a turbine flowmeter? The working principle of an intelligent vortex flowmeter is based on the card gate vortex principle, which means that the vortex frequency is proportional to the flow velocity. Its core component is an isosceles triangular cylinder located at the center of the pipeline, with its axis perpendicular to the direction of fluid flow. When fluid flows through a cylinder, vortices alternate on both sides of the cylinder, forming vortex streets. The vortex frequency is directly proportional to the flow velocity. By measuring the vortex frequency, the flow velocity can be calculated, and then the flow rate can be calculated. The flow calculation formula for a vortex flowmeter is Q=3600F · V (m3/h), where F is the flow area of the flowmeter flow body and V is the average flow velocity of the flowmeter flow body. The sensor is equipped with a detection probe inside. When the pulsating pressure generated by the vortex street acts on the probe, the piezoelectric crystal element will generate a charge signal due to stress changes. These signals are amplified, filtered, and shaped to output current or voltage pulse signals with the same vortex frequency. Each pulse represents a certain volume of fluid, and the total number of pulses represents the total volume. The turbine flowmeter utilizes the working principle of generating electric pulse signals by rotating and cutting the magnetic field of the blade when the fluid flows through the sensor. The fluid impulse causes the blades to rotate, overcoming friction and fluid resistance, and the rotational speed is proportional to the flow velocity. The permanent magnet and coil in the signal detector detect the pulse signal generated by the rotation of the blade, amplify and shape it to form a rectangular pulse wave. The flow calculation formula for a turbine flowmeter is: f=kQ/3600, where f is the pulse frequency, k is the instrument coefficient of the sensor, and Q is the instantaneous flow rate of the fluid. The instrument coefficient is provided by the manufacturer and set in the supporting display instrument, which can directly display instantaneous flow rate and cumulative total amount. The main difference between vortex flowmeter and turbine flowmeter lies in their working principle and structural design. The vortex flowmeter is based on the vortex phenomenon and uses the relationship between vortex frequency and flow velocity for flow measurement; The turbine flowmeter uses the impact of fluid on the blades to rotate them, generating pulse signals for flow measurement.

2. What is the difference between vortex street, turbine, and mass flowmeter? I measure natural gas (ordinary steel cylinder 20MPa after pressure reduction) ..

A vortex flowmeter is a volumetric flowmeter that measures the volumetric flow rate, standard condition volumetric flow rate, or mass flow rate of gases, vapors, or liquids based on the Karman vortex principle. Turbine flowmeter is the main type of velocity flowmeter, which uses a rotor (turbine) with multiple blades to sense the average flow velocity of the fluid and derive the flow code or total amount from it. It generally consists of two parts: sensors and displays, or can be made as a whole. LWGY turbine flowmeter, along with volumetric flowmeter and Coriolis mass flowmeter, are known as the three types of flow meters with the best repeatability and accuracy. As one of the top

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