Measuring molten metal flow with an electromagnetic flow meter

Abstract: Using electromagnetic flowmeter to measure molten metal flow information is provided by excellent flowmeter and flowmeter manufacturers and quotation manufacturers. Measuring molten metal flow with an electromagnetic flowmeter Measuring molten metal flow with an electromagnetic flowmeter is a typical example of high temperature flow measurement. In this case, the basic principles for selecting electromagnetic flowmeters can be summed up in the following two points: 1. The principle is clear. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the details of the article on measuring molten metal flow with electromagnetic flowmeters. 

Measuring molten metal level sensor with an electromagnetic flowmeter Measuring molten metal level control flow with an electromagnetic flowmeter can be said to be a typical example of high temperature flow measurement. In this case, the basic principles for selecting electromagnetic flowmeters can be summed up in the following two points: 1. The principle is clear. The non-flow signal is rarely mixed in on the output, and the factors that produce the non-flow signal can be controlled. 2. The structure is very simple. No maintenance and high reliability. Item * points out that in principle there is no factor that hinders the flow, in fact not only can the pressure loss be ignored, but the output signal is theoretically clarified. That is to say, the output signal depends only on the strength of the magnetic field and the geometry of the piping. If the established technology is mastered, the focus of the measurement is to completely control the magnetic field. That is to say, the physical parameters of the measured fluid have little effect on the output: the same is true for flow meters of other principle structures. But in this case, especially the real flow calibration of the flow meter requires a lot of expense. Due to practical difficulties, it is highly desirable to get the job done without this one. Through the theoretical analysis of the measured output, the small-diameter flowmeter has been clarified. If the aperture is increased, the end effect of the magnetic field will be generated, and the electromotive force will be generated along with it, which will increase the reaction of the magnetic field. The linearity between output and flow is broken, adding difficulties to theoretical processing. 

However, the above theory can also be directly applied. In addition, its structure has the following three components: (1) a stainless steel tube that constitutes a flow path and has the function of an insulating tube; (2) is installed on the wall of the tube by welding at two positions symmetrical to the center of the tube. The wire (3) forms the magnetic field device of the magnetic field. So the structure is simple. And when using the magnetic field device and the magnet, the output signal can be obtained without any external auxiliary energy. From the above, it can be concluded that even when molten metal level measurement, the flow path of the flowmeter is formed of the same material as the piping. Therefore, there are basically no special attention parameters for high temperature flow design. Therefore, this kind of flowmeter is the addition of the processing of high temperature molten metal level measurement and the theory and structure of electromagnetic flowmeter. The details of the research results are collected in the survey report of the Japan Mechanical Society, and only special matters are described here. 

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