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Vortex flowmeter measurement

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What are the measurement ranges of vortex flowmeters?

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 the website of Shandong Qiangqiang Automation Technology Co., Ltd.... Www.qszdh.com

2. How to calculate the flow rate measured by a vortex flowmeter

E=KBdV (where E - is the signal voltage (V) between the electrodes); B -- Magnetic flux density (large impulse T); D - Measure the inner diameter of the tube (M); V - Average flow velocity (M/S). ）In the equation, K and d are constants. Since the excitation current is constant, B is also constant. Therefore, from E=KBdV, it can be seen that the volume flow rate Q is proportional to the signal voltage E, that is, the signal voltage E induced by the flow velocity i

Vortex flowmeter measurement
s linearly related to the volume flow rate Q. Extended Data Vortex Flow Meter is a volumetric flow meter produced based on the Karman vortex based simulation principle for measuring the volume flow rate, standard condition volume flow rate, or mass flow rate of gases, vapors, or liquids. Mainly used for flow measurement of industrial pipeline media fluids, such as gases, liquids, steam, and other media. The characteristics of vortex flowmeter are small pressure loss, large range, high accuracy, and it is almost unaffected by parameters such as fluid density, pressure, temperature, viscosity, etc. when measuring volumetric flow rate under working conditions. No movable mechanical parts, therefore high reliability and low maintenance. The instrument can maintain a stable and long-lasting pulse count. The vortex flowmeter adopts a piezoelectric stress sensor with high reliability and can operate within a temperature range of -20 ℃ to+250 ℃. Reference source: Baidu Baike - Electromagnetic flowmeter Reference source: Baidu Baike - Vortex flowmeter

3. Differences between turbine flowmeter and vortex flowmeter

Turbine flowmeter and vortex flowmeter have significant differences in design principles, application scope, and characteristics, as follows: Design principle Turbine flowmeter: belongs to velocity flowmeter, focusing on measuring liquids. The principle is to use the relationship between the rotational angular velocity of the impeller placed in the liquid and the liquid flow velocity, and calculate the liquid flow rate by measuring the impeller speed. Vortex flowmeter: designed and manufactured based on the Karman vortex principle, using fluid oscillation principle to measure flow rate. When a fluid passes t

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