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『Vortex flowmeter is a volumetric flowmeter』Related information(v cone flow meter|rotary gas meter|gallon meter|gear meter|metal tube rotameter|glass tube rotameter|nutating disk meter|transit time ultrasonic flow meter|wedge flow meter|pd meters|hydraulic flow meter|ultrasonic water flow meter|water flow meter|air flow meter|magnetic water flow meter|oxygen flow meter|gas flow meter|argon flow meter|air velocity meter|gasoline flow meter|fuel flow meter|ultrasonic water meter|digital water meter|nitrogen flow meter|solid flow meter|Oxygen tank flow meter|digital water flow meter|diesel fuel flow meter|steam flow meter|02 flow meter|compressed air flow meter|oil flow meter|liquid flow meter)
1. Flow calculation of vortex flowmeter
The flow calculation of vortex flowmeter is mainly achieved through the following steps and formulas: measuring the frequency of vortex occurrence: The vortex flowmeter first measures the frequency of vortex occurrence, which is directly related to the average flow velocity of the measured medium. The formula for calculating frequency is: f=Sr * U1/d=Sr * U/m, where Sr is the Strouhal number, reflecting the strength of the vortex; U1 is the average flow velocity on both sides of the vortex generator; D is the width of the upstream face of the vortex generator; M is the ratio of the bow shaped area on both sides of the vortex generator to the cross-sectional area of the pipeline. Calculate volumetric flow rate: The formula for calculating volumetric flow rate Li Zao is: qv=π * D2 * U/4=π * D2 * md * f/4 * Sr, where D is the diameter of the body. By using this formula, the measured vortex frequency can be converted into actual volumetric flow rate. Determination of instrument coefficient: The instrument coefficient hall disturbance K, which corresponds to the number of pulses per cubic meter of flow, is an important parameter for vortex flowmeters. The formula for calculating the instrument coefficient K is: K=)? 1. It reflects the characteristics of the flow meter. Considering calibration and compensation under different conditions: In practical applications, vortex flowmeters need to measure different parameters under standard and working conditions, such as volume flow rate, absolute pressure, thermodynamic temperature, and gas compression coefficient. These data help calibrate and compensate for the performance of flow meters under different conditions, ensuring measur
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2. What are the types of mass flow meters
3. Actual flow rate of vortex street flow meters
The flow formula measured by vortex street flow meters is qv=π D2U/4=π D2mdf/4Sr K=f/qv=[π D2md/4Sr] -1. Under specific flow conditions, a part of the fluid kinetic energy is converted into fluid vibration, and the vibration frequency of the vortex street flow meter is proportional to the flow rate (flow rate). A flow meter that works based on this principle is called a fluid vibration flow meter.
. At present, there are three types of fluid vibration flow meters: vortex street flow meters, vortex precession flow meters, and jet flow meters. Fluid vibration flowmeter has the following characteristics: 1) The output is a pulse frequency, which is proportional to the actual volumetric flow rate of the measured fluid and is not affected by fluid composition, density, pressure, or temperature; 2) The measurement range is wide, and the general range can reach 10:1 or more; 3) The accuracy is above average level; 4) No movable parts, high reliability; 5) The structure is simple and sturdy, easy to install, and has low maintenance costs; 6) Widely applicable, suitable for liquids, gases, and vapors. The working principle is to set up a vortex generator (blocking fluid) in the fluid, and generate regular vortices alternately from both sides of the vortex generator. This type of vortex is called