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『Hot air flow meter』Related information(v cone flow meter|rotary gas meter|gallon meter|gear meter|metal tube rotameter|glass tube rotameter|nutating disk meter|transit time ultrasonic flow meter|wedge flow meter|pd meters|hydraulic flow meter|ultrasonic water flow meter|water flow meter|air flow meter|magnetic water flow meter|oxygen flow meter|gas flow meter|argon flow meter|air velocity meter|gasoline flow meter|fuel flow meter|ultrasonic water meter|digital water meter|nitrogen flow meter|solid flow meter|Oxygen tank flow meter|digital water flow meter|diesel fuel flow meter|steam flow meter|02 flow meter|compressed air flow meter|oil flow meter|liquid flow meter)
Why are thermal flow meters commonly used to measure gas flow?
Thermal flow meters are only suitable for environments where the cross-sectional area of the delivery car pipeline is relatively small, the medium is clean and tidy, and the temperature field of the medium is uniform without disorder;
; The reason is:
1. There are few measuring points, which are not suitable for large section pipelines
2. Poor wear resistance and easy adhesion of probes, so it is not suitable for media with wide width and more impurities
The characteristic curve of flow velocity is too short and not clear enough.
2. What is the function of a Venturi tube
Venturi tubes are divided into concealed Venturi tubes and inserted Venturi tubes according to their structure.
. Good results have been achieved in the measurement of combustion air, cold air, and gas (blast furnace gas, coke oven gas, converter gas) in the hot blast stove of steel plants, as well as in the measurement of large diameter and low flow velocity pipeline meters for primary and secondary air in boilers of thermal power plants. Accurate measurement of various gas flow rates in industrial enterprises with low pressure, large pipe diameter, and low flow rate. A fluid measurement device with a wide measurement range and easy installation. The unique structural design and data processing methods are based on rigorous fluid dynamics and have been calibrated in real flow at the National Key Wind Tunnel Laboratory. Application: It can be widely used for the control and measurement of large-diameter fluids in industries such as petroleum, chemical, metallurgical, and power. Characteristic (1): Low resistance to fluid, approximately 15