Turbine flowmeter calculation formula | Turbine flowmeter measures the flow rate under working conditions.

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1. What are the types of mass flow meters?

2. What are the differences between vortex flow meters and turbine flow meters?

The working principle of intelligent vortex flow meters is based on the card gate vortex flow 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 ve

Calculation formula for turbine flowmeter

locity. 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.

3. Turbine flowmeter measures operating flow rate. Turbine flow meters are suitable for measuring the volumetric flow rate of gases under operating conditions. For example, for a DN50 caliber turbine flowmeter, its measurement range can be determined as the operating volume flow rate. To calculate specifically, we can use the formula: flow rate=flow velocity * square of pipeline diameter/354. Using 1.5m/s and 30m/s as the upper and lower limits of flow velocity, and substituting them into the formula for calculation, the lower limit flow rate can be obtained as 10.6m3/h, and the upper limit flow rate can be obtained as 212 m3/h. This means that within the flow rate range of 1.5 to 30m/s, the turbine flowmeter can accurately measure the volumetric flow rate of the gas under ope

Turbine flowmeter calculation formula | Turbine flowmeter measures the flow rate under working conditions.

1. What are the types of mass flow meters?

2. What are the differences between vortex flow meters and turbine flow meters?

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