Electromagnetic flowmeter can measure mixtures of liquids

　　At present, our company produces intelligent electromagnetic flowmeter using advanced technology at home and abroad research and development, in the measurement accuracy, reliability, stability and the use of functionality, service life has more improvement, is the majority of users in the measurement of pipeline China's flow of an indispensable flowmeter products. In the works we are involved in, such as light industry electromagnetic flowmeter is often used in food, paper, fine chemicals and sewage treatment and other industries, used to measure the emulsion, ketchup, beer, pulp, filler, black liquids, other chemicals and other liquids or liquids with gas-liquid, liquid-solid two-phase liquid flow. These liquids in addition to clean liquids, most of which are easy to stick, easy to block, containing bubbles, containing solid particles, and some also have a strong corrosive.

　　At present, the intelligent electromagnetic flowmeter manufacturer explains the intelligent electromagnetic flowmeter with sensor, converter integral type and separation of two structural forms, up to IP68 protection level, a variety of optional corrosion-resistant wear-resistant lining and electrode materials, precision up to 0.2 level, which makes the electromagnetic flowmeter basically to meet the above working conditions of flow measurement needs. There are large particles in the slurry over the electrode surface, in the lower frequency rectangular excitation electromagnetic flowmeter will produce spike-like slurry noise, so that the flow signal is unstable, it is necessary to choose a higher frequency instrument or a stronger ability to suppress the slurry noise instrument, can also choose the utility AC excitation of the instrument or dual-frequency excitation of the instrument.

　　And my company's slurry electromagnetic flowmeter, a good solution to the problem. Mixed into a bubble flow of tiny bubbles can still work normally, but the measured volume of mixed volume flow rate containing bubbles; such as gas content increased to form a bullet (block) flow, because the electrode may be covered by the gas so that the circuit is instantaneously disconnected, the output wobble or even can not work properly. Containing non-ferromagnetic particles or fibers of solid-liquid two-phase fluid can also measure the volume flow of the two-phase. Higher solids content of the fluid, such as drilling mud, drilling cementing water slurry, paper pulp, etc. is actually a non-Newtonian fluid.

　　As solids in the carrier fluid flow together, there is sliding between the two, there is a difference in speed, single-phase liquid calibration meter for solid-liquid two-phase fluid will produce additional errors. Although not yet seen electromagnetic flow meter applied to solid-liquid two-phase fluids in the impact of solids in the system experimental report, but foreign reports say that the solid content of 14% error within 3%; China's Yellow River Conservancy Commission, Institute of Water Conservancy Research test report said that the measurement of the flow of high sand content of the water, the volume of sand content than 17% to 40% (sand median size 0.35rnm), the instrumentation error in measurement Less than 3%.

　　Fluid containing ferromagnetic substances on the usual electromagnetic flowmeter, because the magnetic permeability of the measuring tube by the different content of ferromagnetic body changes, will produce measurement errors. However, in the magnetic circuit is placed in the magnetic flux detection coil compensation of electromagnetic flowmeter, can reduce the effect of mixed ferromagnetic body. For slurry applications containing ore particles, attention should be paid to the degree of wear and tear on the sensor lining, measuring pipe diameter expansion will produce additional errors. Such occasions should be selected with better wear resistance of ceramic lining or polyurethane rubber lining, while it is recommended that the sensor is installed in the vertical pipeline, so that the pipe wear uniformity, to eliminate the disadvantages of horizontal installation of the lower part of the localized wear and tear is serious. Can also be installed at the inlet end of the electromagnetic flowmeter sensing clamor nozzle-shaped sheath, relatively prolonged use.

　　Supmea as a professional manufacturer of intelligent electromagnetic flowmeter, years of experience, any questions can be directly online consult us or call our hotline for consultation.