What are the range parameters of a crystal peak vortex flowmeter

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What is the formula for calculating the frequency and flow rate of a vortex flowmeter? In general, the flow equation of a turbine flowmeter can be divided into two types: practical flow equation and theoretical flow equation. Practical flow equation: qv=f/K formula 1; In the equation qm=qv ρ, qv and qm respectively represent volumetric flow rates, m3/s， Quality flow, kg/s; F is the frequency of the output signal of the flowmeter, Hz; K is the instrument coefficient of the flowmeter, P/m3。 According to the Instrumentation World Network, the coefficient of a turbine flowmeter can be divided into two segments, namely the linear segment and the nonlinear segment. The linear segment is about two-thirds of its working segment, and its characteristics are related to the sensor structure size and fluid viscosity. In the nonlinear segment, the characteristics are greatly affected by bearing friction and fluid viscous resistance. When the flow rate is below the lower limit of the sensor flow rate, the instrument coefficient changes rapidly with the flow rate. The pressure loss is approximately proportional to the square of the flow rate. When the traffic exceeds the upper limit, attention should be paid to preventing cavitation. The shape of TUF characteristic curves with similar structures is similar, with only differences in the level of systematic error. The characteristic curve of the turbine flowmeter is calibrated by a flow verification device, which completely disregards the internal fluid mechanism of the sensor. The sensor is treated as a black box, and its conversion coefficient is determined based on the input (flow rate) and output (frequency pulse signal), making it convenient for practical applications. However, it should be noted that the conversion coefficient (instrument coefficient) of this shirt is conditional, and its verification condition is a reference condition. If it deviates from this condition during use, the bridge coefficient will change depending on the sensor type, pipeline installation conditions, and fluid properties parameters. The theoretical flow equation of a turbine flowmeter can derive the motion equation of the impeller based on the moment of momentum. Flow rate V=3600F/K, where F is the frequency of the vortex flowmeter and K is the factory dust calibration coefficient of the vortex flowmeter.

2. What are the measurement ranges of the vortex flowmeter?

1、 Vortex flowmeter is a flowmeter based on the Karman vortex principle for measurement. It can measure liquids and gases, and is also very economical. The diameter is generally DN10-- DN1000. With temperature and pressure compensation, it can accurately measure gas or steam flow, and has a wide range of applications;

2、 Vortex flowmeter can only measure volumetric flow rate, usually in m3/h (cubic meters per hour), with instantaneous flow display and cumulative flow display;

3、 The measurement range corresponding to electromagnetic flow meters of different diameters is: liquid measurement: (unit: m3/h): DN15

1.2-6; DN20

1.5---10； DN25：2---16； DN32

1.8---20； DN40：2.5---25； DN50：3.5---40； DN65：7.5---70； DN80：12---130； DN100：18---160； ..... Gas measurement: (unit: m3/h): DN15:4--28; DN20：6---40； DN25：8---50； DN32：15---150； DN40：18---180； DN50：25---480； DN65：50---500； DN80：80---800； DN100：120---1200； ..... For more detailed information, please refer to the technical article on t

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