『Selection of flow meters』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)
What are the selection and types of commonly used gas flow meters? Understanding different types of flow meters and their characteristics is crucial when choosing a gas flowmeter. The following is a selection guide and principle introduction for various gas flow meters:
1. Gas Vortex Flow Meter - Selection Parameters: Consider nominal diameter, measurable medium temperature, nominal pressure, accuracy level, flow rate range, etc. -Principle: Using the vortex street principle, a cylindrical object is vertically inserted into the measuring tube, and a vortex is generated when the fluid passes through. The flow rate is calculated by detecting the frequency band of the vortex.
2. Thermal gas mass flowmeter - selection parameters: pipe diameter range, flow rate range, accuracy level, medium temperature, working pressure, etc. -Principle: Based on the principle of thermal diffusion, the gas is accurately measured by the constant temperature difference method, and the mass flow rate or standard volume flow rate is directly output. 3. Gas Turbine Flow Meter - Selection Parameters: nominal diameter, accuracy level, ambient temperature, medium temperature, atmospheric pressure, etc. -Principle: By using turbine blades at a certain angle to the fluid flow direction, the relationship between the angular velocity of turbine rotation and the fluid volume flow rate is measured.
4. Spiral vortex flowmeter - selection parameters: caliber, flow range, ambient temperature, relative humidity, atmospheric pressure, etc. -Principle: Measure the flow rate by utilizing the proportional relationship between the precession frequency of the vortex generated when the fluid flows through the vortex flow sensor and the flow ra
Fifth, Metal Tube Float Flow Meter - Selection Parameters: Measurement Range, Range Ratio, Accuracy Class, Working Pressure, Medium Temperature, etc. -Principle: Based on float position measurement, the float rises when the fluid flows through, and the flow rate is calculated by the change in float position. When selecting a flowmeter, factors such as the type, accuracy, range, installation method, and environmental adaptability of the flowmeter should be comprehensively considered based on the specific application scenario and measurement requirements. Ensure that the selected flow meter meets your specific needs and has good reliability and stability.
2. How to choose a suitable gas mass flowmeter
Choosing a suitable gas mass flowmeter requires consideration of actual needs and comprehensive factors. The following is a specific selection guide
1. Clarify the measurement range. The measurement range of a gas mass flowmeter is usually 0.1 to 1000 Nm3/h, and the model that matches the coverage range should be selected according to the actual flow requirements.
. If the flow rate fluctuates greatly, it is necessary to ensure that the upper and lower limits of the flowmeter can cover the maximum and minimum flow rates to avoid overload or insufficient measurement. For example, in chemical production, if the gas flow rate is between 50-500Nm3/h, a flow meter with a range that includes this range should be selected. Understanding the physical and chemical properties of the gas (such as density, temperature, pressure, corrosiveness) directly affects the selection and measurement results of the flow meter. Gas type: Different gases have different adaptability to flow meters. For example, Corio
Hot Product
Related AD
