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1. Types of flow meters
The types of flow meters mainly include liquid flow meters and gas flow meters. The following are specific classifications: liquid flowmeter: turbine flowmeter: measures flow rate through turbine rotation, suitable for measuring clean liquids. Electromagnetic flowmeter: based on the principle of electromagnetic induction, suitable for flow measurement of conductive liquids. Ultrasonic flowmeter: It calculates the flow rate by the propagation speed of ultrasonic waves in the fluid, and has the characteristics of non-contact measurement. Coriolis flowmeter: uses the Coriolis force generated by fluid in a rotating pipeline to measure flow rate. Gas flow meter: Thermal flow meter: It calculates the flow rate by measuring the heat of gas, and is suitable for various gas media. Mass flow meter: Directly measuring the mass flow rate of gas can provide more accurate measurement results. Orifice flowmeter: using the principle of throttling to measure gas flow by generating pressure difference through the orifice plate. In addition, there are some special types of flow meters, such as flow meters shared by liquids and gases, as well as flow meters suitable for specific industries or special environments. With the development of industry and technological progress, the types and functions of flow meters are constantly being updated and expanded.
2. What are the types of liquid flow meters? What are the types and selection of liquid flow meters? Introduction to types and selection of liquid flow meters: In industrial production and laboratory testing, liquid flow meters are widely used instruments for measuring the flow rate of liquids in pipelines. There are many types of liquid flow meter
1. Volume flowmeter 1 Wheel flowmeter is a mechanical flowmeter that determines the flow rate by measuring the number of turns a liquid passes through a rotating wheel. It is suitable for measuring low viscosity liquids such as water and solutions. Wheel flowmeter has the advantages of simple structure, low price, easy installation and maintenance, but it has certain limitations on the viscosity and particles of the liquid. Gear flowmeter uses the flow of liquid between two gears to measure the flow rate. It is suitable for medium viscosity liquids such as fuel, lubricants, and chemicals. Gear flow meters have the characteristics of high precision and good stability, but are not suitable for high viscosity liquids and liquids with high particle content.
2. Mass flowmeter 1 Thermal mass flowmeter determines the flow rate by measuring the temperature change of the liquid passing through the sensor. It is suitable for various liquids, including high viscosity liquids and corrosive liquids. Thermal mass flow meters have high precision, fast response, and small pressure loss, but they are relatively expensive. Ultrasonic mass flow meters use the speed of ultrasonic waves propagating in liquids to measure flow rate. It is suitable for various liquids, including corrosive liquids and high-temperature liquids. Ultrasonic mass flow meters have non-invasive measurement, high accuracy, and small pressure loss, but they have certain interference with bubbles and particles in liquids. 『SILVER Official Website SERVICE』
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