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Vortex flow meters are developed based on the Karman vortex street principle, and are primarily used for measuring the flow rate of fluids in industrial pipelines, including various media such as gases, liquids, and steam. It has advantages such as simple structure, reliable performance, and long service life. This article mainly discusses the shortcomings of vortex flowmeters. 1. The volumetric flow rate of a vortex flow meter in operation is not affected by thermal parameters such as the temperature, pressure, and density of the fluid being measured. However, for liquids or steam, the final measurement value is the mass flow rate, while for gases, the final measurement value is the standard volumetric flow rate. Both mass flow rate or standard volume flow rate must be converted using the fluid density, and changes in fluid density resulting from variations in operating conditions must be taken into account ； 2. The main factors causing errors in flow measurement are: measurement errors resulting from uneven flow velocity in the pipeline ； It is not possible to determine accurately the medium density when the fluid operating conditions change ； Measure by assuming wet saturated steam to be dry saturated steam. If these errors are not limited or eliminated, the overall measurement error of the vortex flow meter will be very large ； 3. Poor vibration resistance: External vibrations can cause measurement errors in vortex flowmeters, or even prevent them from functioning properly. The high flow velocity of the channel fluid can cause additional vibrations in the cantilever of the vortex street generator, thereby reducing the measurement accuracy. The effect of larger pipe diameters is more pronounced ； 4. Poor adaptability to dirty measurement media: The element of the vortex flow meter can easily become contaminated by the medium or entangled by debris, altering its geometric dimensions and thus having a significant impact on measurement accuracy ； 5. High requirements for straight pipe sections: Experts point out that for vortex flowmeters, the straight pipe sections must be at least 40D in length ahead and 20D behind to meet the measurement requirements ； 6. Poor temperature resistance: Vortex flow meters can generally only measure the flow rate of fluids at temperatures below 300°C. For more information, please visit the company’s official website at http://www.yb1518.com/. Please keep this link when reproducing the content! http://www.yb1518.com/UploadFiles/20175239314754.jpg