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1. What flowmeter is good for slow liquid flow rate? When the liquid flow rate is slow, it is preferred to choose elliptical gear flowmeter, electromagnetic flowmeter or Coriolis mass flowmeter that are sensitive to low flow rate. 1. The elliptical gear flowmeter measures flow rate by a fixed volume driven by liquid to rotate the elliptical gear, with high accuracy (± 0.5%~1%) and minimal viscosity impact. Suitable for high viscosity fluids such as crude oil and Mu Lu lubricating oil, and can maintain accurate measurement even in low flow rate environments. two The electromagnetic flowmeter measures flow velocity based on the principle of generating electromotive force by cutting magnetic induction lines with conductive liquid, with minimal pressure loss and the ability to capture extremely low flow velocities (such as below 0.1m/s). Conductive liquids such as acid, alkali, and salt solutions are commonly used in this type and are widely used in the chemical and water treatment industries. three The Coriolis mass flowmeter utilizes the Coriolis effect generated by fluid vibration to directly measure mass flow rate, with the highest accuracy and no interference from temperature and density. Low flow rate scenarios with strict requirements such as pharmaceuticals and food processing are preferred, but there are high requirements for installation location and liquid cleanliness. 2. What are the commonly used types of liquid flow meters?
What are the commonly used types of liquid flow meters?? Introduction: Understanding the types of liquid flow meters is crucial for industrial production and process control. This article will introduce commonly used types of liquid flow meters, including their princi
1. Electromagnetic flowmeter Electromagnetic flowmeter is a commonly used liquid flowmeter that uses Faraday electromagnetic induction principle to measure the flow rate of conductive liquids.
. Its working principle is that when a liquid flows through a conductive pipeline, the magnetic field applied to the liquid will cause an induced electromotive force in the liquid, thereby measuring the flow velocity of the liquid. Electromagnetic flow meters have the characteristics of no pressure loss, high accuracy, and strong reliability, and are widely used in fields such as chemical engineering, water treatment, and petroleum.2. Turbine flowmeter uses the rotational torque generated by the leakage of liquid flowing through the turbine blades to measure the flow rate.
. Turbine flow meters are suitable for measuring low viscosity liquids such as water, fuel, etc. Its working principle is simple, the structure is compact, and it has the advantages of fast response and high accuracy. It is commonly used in industries such as petroleum, chemical, and food.3. Ultrasonic flowmeter Ultrasonic flowmeter is a type of flowmeter that uses the velocity difference of ultrasonic waves propagating in liquid to measure flow rate.
. It is suitable for various liquids, does not require contact with liquids, and does not cause pressure loss to fluids. Ultrasonic flow meters have the characteristics of non-invasive, high accuracy, and strong reliability, and are widely used in fields such as chemical engineering, water treatment, and energy.Fourthly, a mass flowmeter is a type of flowmeter that calculate
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