The flow meter should choose a reasonable measurement method

Abstract: The flow meter should choose a reasonable measurement method. The information provided by the excellent flow meter and flow meter manufacturer and quotation manufacturer will be provided to you. On the basis of ensuring the safe operation of the instrument, we strive to improve the accuracy and energy saving of the instrument. To this end, not only the display instrument that meets the accuracy requirements should be selected, but also a reasonable measurement method should be selected according to the characteristics of the measured medium. Main steam flow measurement in power plants. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the article details of the flowmeter to choose a reasonable measurement method. On the basis of ensuring the safe operation of the instrument, we strive to improve the accuracy and energy saving of the instrument. To this end, not only the display instrument that meets the accuracy requirements should be selected, but also a reasonable measurement method should be selected according to the characteristics of the measured medium. The main steam flow measurement of power plants, because it is very important to the safety and economy of the power plant, generally adopts mature standard throttling capacity and differential pressure flow meters. The sewage and fuel oil treated by chemical water treatment belong to dirty flow and low Reynolds respectively. For several viscous flows, standard throttling is not applicable. For dirty flow, non-standard throttling parts such as circular orifice plate are generally used with differential pressure gauge or ultrasonic Doppler flowmeter, while for viscous flow, volumetric flowmeter, target type or wedge flowmeter can be used respectively. The water volume of the turbine population, the circulating water volume of the condenser and the regenerative steam of the regenerative unit are all flow measurement parameters of large pipe diameter (above 800mm). Due to the difficulty in processing and large pressure loss, standard throttling devices are generally not used. According to the characteristics of the measured medium and the requirements of measurement accuracy, the flow rate is measured by means of insertion flowmeter, differential pressure gauge with speed measuring element, ultrasonic flowmeter, or non-destructive methods such as marking method and simulation method. In order to ensure the service life and accuracy of the flowmeter, the anti-vibration requirements of the instrument should also be paid attention to when selecting the model. In humid and hot areas, damp and hot meters should be selected. Correctly selecting the specifications of the instrument is also an important part of ensuring the service life and accuracy of the instrument. Special attention should be paid to the selection of static pressure and temperature resistance. The static pressure of the instrument is the pressure resistance degree, which should be slightly larger than the working pressure of the measured medium, generally 1.25 times, to ensure that no leakage or accident occurs. The selection of the measuring range is mainly the selection of the upper limit of the scale of the instrument. If it is too small, it is easy to overload and damage the instrument; if it is too large, it will hinder the accuracy of the measurement. Generally selected as 1.2 to 1.3 times the maximum flow value in actual operation. For long-term contact meters installed on production pipelines, the energy loss caused by the flow measuring element should also be considered. In general, multiple measuring elements with large pressure loss, such as throttling elements, should not be used in the same production pipeline. In short, there is no single measurement method or flow meter that is suitable for every fluid and flow situation. Different measurement methods and structures require different measurement operations, usage methods and usage conditions. Each type has its own unique advantages and disadvantages. Therefore, on the basis of a comprehensive comparison of various measurement methods and instrument characteristics, the best type suitable for production requirements, which is both safe and reliable, economical and durable, should be selected. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'The flow meter should choose a reasonable measurement method'

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