How much does a set of DN150 vortex flowmeter cost

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1. 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 is 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

2. The difference between vortex flowmeter and electromagnetic flowmeter? There are significant differences between vortex flowmeters and electromagnetic flowmeters in terms of principles, measured substances, and application ranges. 1. Principle: A vortex flowmeter is based on inserting an object (such as a slug) into a fluid to generate a vortex, and calculating the flow rate by measuring the frequency of the vortex. The electromagnetic flowmeter is based on Faradays law of electromagnetic induction, which states that when a conductor moves in a magnetic field, an electromotive force is generated in the conductor, resulting in an electric current. In an electromagnetic flowmeter, the conductor is the fluid. When the fluid moves in a magnetic field, an electromotive force is generated. By measuring this electromotive force, the flow rate of the fluid can be measured. 2. Measurement substance: Vortex flowmeters can measure substances such as liquids, gases, and vapors, and have a relatively wide range of applications. Electromagnetic flowmeters are mainly used for conductive liquids such as water, acidic and alkaline liquids, and cannot be applied to gases, vapors, and liquids containing large bubbles. 3. Measurement range: The measurement range of vortex flowmeters is usually wide and the pressure loss is relatively small. The measurement range of electromagnetic flow meters is relatively narrow, especially at low Reynolds numbers, and the accuracy of the measurement will be affected.

4. Structure and price: The structure of vortex flow meters is relatively simple and sturdy, and the price is relatively low.

. Although electromagnetic flow meters are widely used, they need to deal with some tedious factors in their applications, such as complex beam structures and relatively high prices. Overall, vortex flowmeters and electromagnetic flowmeters eac

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