The thermal gas mass flowmeter is designed based on the principle of thermal diffusion

The thermal gas mass flowmeter is based on the principle that the speed of heat absorption is directly related to the mass flow rate. The sensor of the instrument is composed of two reference-level thermal resistances (platinum RTD). One is a mass velocity sensor T1, and the other is a temperature sensor T2 that measures changes in gas temperature. When these two RTDs are placed in the measured gas, one sensor T1 is heated to a constant temperature difference above the gas temperature, and the other sensor T2 is used to sense the measured gas temperature. As the gas mass flow rate increases, the airflow takes away more heat, and the temperature of sensor T1 drops. To maintain a constant temperature difference between T1 and T2, the heating power of T1 must be increased. According to Kim's law of thermal effect. When the moving gas molecules hit the thermal resistor, they absorb and take away heat. The larger the flow rate, the more molecules contacting the thermal resistor, and the more heat absorbed. The heat absorption is related to the number of molecules, thermal characteristics and flow characteristics of a certain gas. The thermal gas mass flowmeter is designed based on the principle of thermal diffusion. The instrument uses a constant temperature difference to accurately measure the gas, which is the principle of constant temperature difference. It has the advantages of small size, high degree of digitization, convenient installation and accurate measurement. Thermal gas mass flowmeters can be used in: environmental protection industry, food and pharmaceutical industry, chemical industry, metallurgical industry, electric power industry, and other industries. Pipeline gases; general systems; biogas; coal gas; natural gas; liquefied gas; boiler preheating air. Gas measurement during gas distribution in the fuel system; measurement of various gases in boilers and auxiliary systems; gas measurement in gas furnaces; hydrogen measurement; primary air and secondary air measurement of blast furnaces in power plants. Flue gas circulation monitoring; gas flow measurement in sampling system; gas flow measurement of induced draft fan; ammonia gas measurement in fertilizer plant ; battery factory various gas flow measurement. Gas measurement in wastewater treatment systems; flue flow monitoring; secondary/tertiary air recovery from boilers; gas and air supply measurement for boilers. Fresh air addition in processing operations; carbon dioxide treatment in breweries; hot air flow in bottle sterilizers; gas flow measurement in thermal oxidation processes; ventilation systems; boiler intake, exhaust gas, process control. Factory compressed air measurement; powder/gas ratio control fuel in pulverized coal combustion process; cement industry vertical mill exhaust hot gas flow control.

u shape coriolis mass flow meter mass flow meter is generally used to vortex flow meter manufacturer.

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