Introduction to the advantages and disadvantages of the electromagnetic flowmeter in the water industry

The electromagnetic flowmeter has a series of excellent characteristics, which can solve the problems that other flowmeters are not easy to apply, such as the measurement of dirty flow and corrosion flow. In the 1970s and 1980s, electromagnetic flowmeters had a major breakthrough in technology, and their applications were extensive.
    advantage:
    The measuring channel is a smooth straight pipe with no obstruction. It is suitable for measuring liquid-solid two-phase fluids containing solid particles, such as pulp, mud, sewage, etc.
    Does not produce pressure loss caused by flow detection, good energy saving effect
    The measured volumetric flow is virtually unaffected by changes in fluid density, viscosity, temperature, pressure, and conductivity;
    Large flow range and wide range of caliber;
    Corrosive fluids can be applied.
    Disadvantages:
    Cannot measure liquids with low conductivity, such as petroleum products
    Cannot measure gases, vapors, and liquids containing large bubbles
    Cannot be used for higher temperatures.
    Electromagnetic flowmeters are widely used in applications. Large-diameter instruments are mostly used in water supply and drainage projects; small and medium-sized calibers are often used in high-demand or difficult-to-measure applications, such as steel industry blast furnace tuyere cooling water control, paper industry measuring pulp and black liquor, chemical industry Strong corrosive liquid, pulp of non-ferrous metallurgical industry; small caliber, small caliber is often used in places where there are hygienic requirements in the pharmaceutical industry, food industry, biochemistry, etc.