How to choose a suitable vortex flowmeter

Abstract: The information on how to choose a suitable vortex flowmeter is provided by the excellent flowmeter and flowmeter manufacturers. First of all, the vortex flowmeter is based on the principle of Karman vortex. When the gas encounters the triangular column of the vortex generator, a Karman vortex will be generated, which is converted into a frequency signal by the vortex piezoelectric ceramic probe, and the flow rate can be calculated by the processing of the signal board. value. Vortex flow. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the article details on how to choose a suitable vortex flowmeter. First of all, the vortex flowmeter is based on the principle of Karman vortex. When the gas encounters the triangular column of the vortex generator, a Karman vortex will be generated, which is converted into a frequency signal by the vortex piezoelectric ceramic probe, and the flow rate can be calculated by the processing of the signal board. value. Vortex flowmeters can be used for water vapor measurement. The current application is the measurement of steam. The advantages of vortex flowmeter measurement are that the pressure loss is small, the installation and use are convenient, and the measurement is relatively accurate. The vortex flowmeter used to measure steam generally needs temperature and pressure compensation, because the temperature and pressure of the steam are changing at any time, and the density value of the steam can only be calculated by measuring the accurate temperature and pressure, so that The calculated mass flow is accurate. Temperature and pressure compensation is generally divided into integrated compensation and split compensation. The advantage of integrated compensation is that the installation is convenient and beautiful, but the accuracy is affected. Because the temperature and pressure of the integrated type are not in direct contact with the medium. However, this deviation is also related to the product design and quality of each manufacturer. For example, the temperature sensor of our vortex flowmeter manufacturer Xudong Instrument Factory is installed at the bottom of the probe and has almost no deviation, and the pressure deviation is also very small. Of course, compared with the integrated type, the split-type vortex flowmeter is more accurate. It installs the temperature transmitter and the pressure transmitter on the pipeline separately for measurement, and the measurement result is closer to the real value. Imported vortex flowmeters such as E+H, Rosemount accuracy and stability can generally have 0.75% and 1.0% accuracy, such values ​​are only theoretical values, the actual accuracy is difficult to achieve, and the price is several times higher than domestic. Domestic vortex flowmeters can also achieve such accuracy. Therefore, everyone should not blindly worship foreign countries in their choices, but should choose according to the situation on site and the requirements for accuracy and stability. The product quality of domestic vortex flowmeters is of course uneven. There are the following reasons for these reasons. First, the machined wire cutting technology of the vortex flowmeter, whether the processed vortex flowmeter is smooth or not, and the flow rate of the good probe is not good. What is the fluctuation, the flow measured by the probe with poor quality will fluctuate. The quality of the circuit board of the vortex flowmeter is also a factor. The circuit board of the 8-bit single-chip microcomputer is not as strong as the 16-bit circuit board. It uses a 16-bit chip, which has better anti-interference performance and stability. There will be no large fluctuations in flow due to small vibrations on site. It affects the quality of the vortex flowmeter and the quality of the verification device. Some small workshops have almost no identification devices, so it is impossible to talk about accuracy. In addition, some companies calibrate against standard tables, and often do not use real standard tables in order to save costs, so the accuracy is not high. The identification device of our Xudong Instrument Factory has both the standard table calibration and the real flow calibration of the sonic nozzle, so the accuracy and stability can be guaranteed. Huawei Yuanhang Automation Instrument, a professional manufacturer of vortex flowmeters The above is the entire content of this article. You are welcome to inquire about the flowmeter selection and quotation of our manufacturer. 'How to choose a suitable vortex flowmeter'

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