The method of correct selection of flow measurement of vortex flowmeter

Abstract: The information on the correct selection of the flow measurement of the vortex flowmeter is provided by the excellent flowmeter and flowmeter manufacturers. 1. Vortex flowmeter display instrument selection The display instrument intelligent flow indicator has the functions of voltage stabilization compensation, instantaneous flow display and cumulative flow accumulation. 2. Measurable medium Measuring medium flow rate, instrument range and caliber When measuring general medium, vortex. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the article details of the correct selection method for flow measurement of vortex flowmeter meters. 1. Vortex flowmeter display instrument selection display instrument Intelligent flow indicator, with voltage stabilization compensation, instantaneous flow display and cumulative flow accumulation functions. 2. Measurable medium The flow rate of the medium, the measuring range and caliber of the instrument can be measured. When measuring the general medium, the full-scale flow rate of the vortex flowmeter can be measured at 0.5 of the medium flow rate.—It is selected within the range of 12m/s, and the range is relatively wide. The specification (diameter) of the selected instrument is not necessarily the same as that of the process pipeline. It should be determined according to whether the measurement flow range is within the range of the flow rate, that is, when the flow rate of the pipeline is too low to meet the requirements of the flow meter or the measurement accuracy cannot be guaranteed at this flow rate, It is necessary to reduce the diameter of the instrument to increase the flow rate in the pipe and obtain satisfactory measurement results. 3. Selection of vortex flow transmitter The VA type piezoelectric vortex flow transmitter is used in the saturated steam measurement. Due to the wide range of the vortex flowmeter, in practical applications, the measurement of saturated steam is generally mainly considered. The flow rate must not be lower than the lower limit of the vortex flowmeter, that is to say, the fluid velocity must not be lower than 5m/s. Vortex flow transmitters with different diameters are selected according to the size of the steam consumption, and the diameter of the transmitter cannot be selected with the existing process pipe diameter. 4. Selection of pressure compensation pressure transmitter Because the saturated steam pipeline is long and the pressure fluctuates greatly, pressure compensation must be used. Considering the corresponding relationship between pressure, temperature and density, only pressure compensation can be used in the measurement. Because the pipeline is saturated The steam pressure is in the range of 0.3-0.7MPa, and the range of the pressure transmitter can be selected as 1MPa. 5. Accuracy grade and function of precision function inspection The accuracy grade of the instrument is selected according to the measurement requirements and application occasions, so as to be economical and cost-effective. For example, in the case of trade settlement, product handover and energy measurement, a higher accuracy level should be selected, such as 1.0, 0.5, or higher; for process control, the flowmeter should choose different accuracy levels according to the control requirements; In some cases where the process flow is only detected, and there is no need for precise control and measurement, you can choose a slightly lower accuracy level, such as 1.5, 2.5, or even 4.0. In this case, you can choose a low-cost plug-in vortex flowmeter. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Vortex flowmeter meter flow measurement method of correct selection'

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