『Thermal vortex 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)
Which is a good thermal gas mass flowmeter?
2. Difference between hot gas and vortex gas
What you mentioned may be "hot gas" and "vortex gas", which is more like the technical principle distinction between the two types of flow meters, rather than the type of gas.. Thermal gas flowmeter uses the principle of thermal diffusion to measure the flow rate by measuring the rate at which the fluid carries away heat; The vortex flowmeter is based on the Karman vortex effect and calculates the flow rate by detecting the frequency of vortex generation in the fluid. The core of a thermal gas flowmeter is the principle of thermal diffusion. It usually has two sensors: one for heating and one for temperature measurement in the Xila Hall. When gas flows through, it carries away heat, causing temperature changes. By measuring this temperature difference or the energy required to maintain a constant temperature, the mass flow rate of the gas can be calculated. Its advantage lies in directly measuring mass flow without the need for temperature and pressure compensation, especially adept at measuring low flow rate gases. It has no moving parts inside, high reliability, and minimal pressure loss. But its disadvantage is that it is sensitive to changes in the composition of the medium and has a higher cost in applications with large pipe diameters. The working principle of a vortex flowmeter is the Karman vortex effect. It places a blocking fluid (vortex generator) in the flow field, and as the fluid flows through it, regular vortices alternate on both sides. The frequency of these vortices is directly proportional to the flow velocity of the fluid. By detecting the vortex frequency through components such as piezoe
1. Measurement object: Thermal type is usually specialized in gases, while vortex street is universal for gases, liquids, and vapors
2. Output signal: Thermal type directly outputs mass flow rate, while vortex street outputs volume flow rate, which needs to be combined with temperature and pressure compensation to obtain mass flow rate
3. Installation requirements: Vortex street has strict requirements for straight pipe sections, while thermal type has relatively low requirements
4. Applicable flow rate: Thermal type performs well at extremely low flow rates, and vortex street has the lowest flow rate limit
5. Medium cleanliness: Vortex street is afraid of the influence of adhesive substances in the medium on the generator and sensor, while thermal type is afraid of dust
Pollution temperature sensor.3. What are the commonly used models of low-pressure and high flow air flow meters?
The commonly used low-pressure and high flow air flow meters mainly include four types: thermal gas mass flow meters, Annubar/Velbar flow meters, LWQ series compressed air flow meters, and univer
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