Application of electromagnetic flowmeter in industrial
Electromagnetic flowmeter (model LDG) is a flowmeter that uses Faraday's law of electromagnetic induction to measure the volume flow of conductive liquids. In the early 1950s, electromagnetic flowmeters were industrialized. In recent years, in the world, the output of electromagnetic flow meters accounts for about 5% to 6.5% of the total number of industrial flow meters. Especially in recent years, the ratio of this value has been increasing year by year. As a kind of industrial flow measurement instrument, the electromagnetic flowmeter has many advantages, such as extremely small pressure loss; large measurable flow range; wide applicable industrial pipe diameter range, up to 3000mm; the output signal is linear with the measured flow , High accuracy; can measure the flow rate of acid, alkali, salt solution, water, sewage, corrosive liquid and mud, ore pulp, paper pulp with conductivity ≥5us/cm.
The application fields of electromagnetic flowmeters are very wide. According to the application, there are large diameter, small and medium diameter, small diameter and small diameter. Among them, large diameter electromagnetic flowmeters are mostly used in water supply and drainage, sewage treatment and water injection in oil and gas fields. For solid-liquid double equal difficult-to-measure fluids or places with high requirements, such as measuring paper polymer liquid and black liquor in the paper industry, ore pulp in the nonferrous metallurgy industry, coal slurry in the coal preparation plant, strong corrosive fluid in the chemical industry, and blast furnace tuyere cooling water in the steel industry Control, flow measurement and control of hydraulic transportation of long-distance pipeline coal, etc., and small and small diameters are often used in places with hygienic requirements such as the pharmaceutical industry, food industry, and bioengineering.
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