What is the relationship between the instrument coefficient K of a turbine flowmeter, the number of output pulses N, and the total volume V of the fluid flowing through it ..

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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 relationship between the instrument coefficient K of the turbine flowmeter, the number of output pulses N, and the total volume V of the fluid flowing through it The relationship between the instrument coefficient K of a turbine flowmeter, the number of output pulses N, and the total volume v of the fluid flowing through can be expressed mathematically as follows: v=K * N/1000, where v is the total volume of the fluid flowing through (in cubic meters), K is the instrument coefficient (in pulses per cubic meter), and N is the number of output pulses. This formula indicates that when the instrument coefficient K of the Suigao Sakura turbine flowmeter is known, the total volume v of the fluid flowing through can be determined by measuring the output pulse number N. The instrument coefficient K is an inherent parameter of the flowmeter

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