Fujifilm ultrasonic flowmeter is a non-contact flowmeter that has only been applied with the rapid development of integrated circuit technology in the past ten years, which is suitable for measuring fluids that are not easy to contact and observe, as well as large pipe diameter flows. Together with the water level gauge, it forms an open channel flow meter for flow measurement of open water flow. The use of ultrasonic flowmeter does not need to install a measuring element in the fluid, so it will not change the flow state of the fluid, no additional resistance, and the installation and maintenance of the flowmeter can not affect the operation of the production pipeline, so it is an ideal energy-saving flowmeter.
As we all know, the current industrial flow measurement generally has the problem of large pipe diameter and large flow measurement difficulty, this is because the general flowmeter with the increase of the measurement pipe diameter will bring difficulties in manufacturing and transportation, the cost increases, the energy loss increases, and the installation not only these shortcomings, but also the ultrasonic flowmeter can be avoided. Because all kinds of ultrasonic flowmeters can be installed outside the pipe and non-contact current measurement, the cost of the flowmeter is basically irrelevant to the diameter of the pipeline to be measured, and the cost of other types of flowmeters increases greatly with the increase of caliber, so the larger the aperture, the more superior the function price ratio of other types of flowmeters with the same function. Considered to be a good large-diameter flow measurement instrument, the Doppler ultrasonic flowmeter can measure the flow rate of duplex medium, so it can be used for the measurement of dirty flow such as sewer and sewage discharge. In power plants, it is much more convenient to use a portable ultrasonic flowmeter to measure the flow rate of large pipe diameters, such as the water inlet of the water turbine and the circulating water of the steam turbine, than the flow rate of the pito-tube in the past. Ultrasonic flow juice can also be used for gas measurement. The pipe diameter can be applied from 2 cm to 5 m, from open channels and culverts several meters wide to rivers 500 m wide.
In addition, the measurement accuracy of Fujifilm ultrasonic flowmeter is almost not affected by the temperature, pressure, viscosity, density and other parameters of the measured fluid, and can be made into non-contact and portable measuring instruments, so it can solve the flow measurement problems of highly corrosive, non-conductive, radioactive and flammable and explosive media that are difficult to measure by other types of instruments. In addition, in view of the non-contact measurement characteristics, coupled with reasonable electronic circuits, one flowmeter can be adapted to a variety of pipe diameter measurement and a variety of flow range measurement. The adaptability of ultrasonic flowmeters has advantages that are incomparable with other instruments. Ultrasonic flowmeter has some of the above advantages, so it has received more and more attention and developed to product serialization and generalization, and has been made into standard, high-temperature, explosion-proof and wet instruments with different channels to adapt to flow measurement of different media, different occasions and different pipeline conditions.
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