Purified water electromagnetic flowmeter

At present, China's industry is developing rapidly. Electromagnetic flowmeters are widely used in various industrial occasions because of the wide range of measurement media and less interference from the outside world.　　Purified water is water for medicinal purposes prepared by distillation, ion exchange, reverse osmosis or other suitable methods for drinking water, without any additives. Therefore, some customers will ask whether the electromagnetic flowmeter can measure the flow of purified water. Before asking this question, you must first understand the principle of use of the electromagnetic flowmeter and the applicable medium.　　Principle: Electromagnetic Flowmeters (EMF for short) is a new type of flow measurement instrument that developed rapidly with the development of electronic technology in the 1950s and 1960s. Electromagnetic flowmeter is an instrument that uses the principle of electromagnetic induction to measure the flow of conductive fluid based on the electromotive force induced when the conductive fluid passes through an external magnetic field.　　Structure: The structure of electromagnetic flowmeter is mainly composed of magnetic circuit system, measuring catheter, electrode, shell, lining and converter. Applicable medium: From the structure of the electromagnetic flowmeter I introduced to you above, you can know that there is a structure of electromagnetic flowmeter called lining. This structure is also the most direct structure in contact with the medium, so the first thing to consider when considering the measurement medium It is the requirement of electromagnetic flowmeter lining for various media. In other words, different linings must be selected for different media. The lining material should be selected according to the corrosiveness, abrasiveness and temperature of the measured medium: 　　1, natural rubber (soft rubber)　　1, better elasticity, abrasion resistance and tearing force 2, resistance to general weak acids and weak alkalis 3, water, sewage, acid-resistant rubber (hard rubber) 　　 can withstand the corrosion of hydrochloric acid, acetic acid, oxalic acid, ammonia, phosphoric acid and 50% sulfuric acid, sodium hydroxide, potassium hydroxide at room temperature, but not strong The corrosion test of oxidant is common acid, alkali, salt solution. 3. Neoprene (Neoprene) 　　 1. Excellent elasticity, high breaking force, good abrasion resistance 2. Resistance to general low-concentration acid, alkali and salt solution Corrosion, but not resistant to the corrosion of oxidizing media <80℃; 　　 test water, sewage, mud and ore pulp Four, polyurethane rubber (Polyurethane) 　　1, excellent wear resistance 2, acid and alkali resistance is poor <40℃　　 test Neutral and strong abrasive coal slurry, mud and mineral slurry 5. Polytetrafluoroethylene (PTFE) 　　 1. Boiling resistant hydrochloric acid, sulfuric acid, nitric acid, aqua regia, concentrated alkali and various organic solvents 2. Good abrasion resistance, bonding Poor performance -80～+180℃; 　　 measuring concentration, strong alkali, strong corrosive solution and sanitary medium can be understood through the principle of electromagnetic flowmeter that I have introduced to you above, the medium measured by electromagnetic flowmeter must be conductive, However, the conductivity of pure water is very low, and the electromagnetic flowmeter cannot work normally, and of course it is even more inaccurate. This is based on the previous ordinary electromagnetic flowmeter, but now the technology is more advanced, there are still electromagnetic flowmeters on the market that can measure the flow of purified water, but the editor here does not recommend the use of electromagnetic flowmeters, in order to make purified water The flow measurement is more accurate, and I still recommend that you use other flow meters. However, some customers not only want to measure the flow of purified water, but also want to measure other media, and want to use electromagnetic flowmeters. Which electromagnetic flowmeter is better? Here I recommend Kaidi sensing technology to everyone. The electromagnetic flowmeter of Co., Ltd., which integrates advanced technology of electromagnetic flowmeter, has strong anti-corrosion ability, strong anti-interference ability, unique adaptability to slurry measurement, etc., and has a strong after-sales team, and has There are nearly 20 offices, so you can rest assured when choosing Kaidi's electromagnetic flowmeter.

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