Principle of elliptical gear flowmeter | What is the measurement method of elliptical gear flowmeter?

『Principle of elliptical gear flowmeter』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)

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 is the measurement method of elliptical gear flowmeter? The elliptical gear flowmeter is a volumetric flowmeter, also known as a displacement flowmeter. It is a type of flow meter with high measurement accuracy in the Ziyou Instrument series. When the measured liquid enters the elliptical gear flowmeter through the pipeline, the pressure difference generated at the inlet and outlet drives a pair of gears to rotate continuously, continuously delivering the liquid measured by the lunar cavity to the outlet. The product of the number of revolutions of the elliptical gear and four times the displacement per time is the total flow rate of the measured liquid. Therefore, it is not difficult to find from the measurement principle of the elliptical gear flowmeter that it relies on the pressure head of the measured medium to push the elliptical gear to rotate for measurement, regardless of the flow state of the fluid. Through the above introduction, we have found that this flowmeter belongs to the mechanical principle instrument and can only be used for measuring high viscosity liquid media. The elliptical gear flowmeter uses mechanical measuring elements to continuously divide the fluid into individual known volume parts, and measures the total flow volume based on the number of times the measuring chamber sequentially and repeatedly fills and discharges the slow part of the volume chain fluid. The elliptical gear flowmeter can be made of different materials (cast steel, stainless steel, and 316) and is suitable for flow key measurement in industrial sectors such as chemical, petroleum, pharmaceutical, power, metallurgy, and food. When we use an elliptical gear flowmeter to measure liquids with high viscosity, the amount of leakage from the gap between the gear and the measuring space is reduced. Therefore, the higher the viscosity of the measured liquid, the smaller the leakage error, which is more advantageous for the measurement and the higher the measurement accuracy. It can be said that the elliptical gear flowmeter is the best choice for measuring

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