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1. Thermal gas mass flow meter for gas mass flow controller
Currently, the most widely used in China is the thermal gas mass flow meter. The principle is as follows: "Place two pairs of heaters in a thin diameter induction tube and control them at the same temperature. When the fluid flows, the gas brings some of the heat from the upstream to the downstream, while the downstream heater obtains heat from above and the temperature rises. At this time, use the principle that the temperature difference between the upper and lower heaters is proportional to the mass flow rate of the fluid to measure the flow rate; Imagine placing two electric heaters, connecting them with a wire, and sitting on a right angle line intersecting at the midpoint of the wire, feeling very warm. Two electric heaters emit the same amount of heat, and you sit in the middle position at the same distance from both heaters, receiving heat from both sides, which is the hottest place. In this hot season, its unbearable to say such things... At this time, adding an electric fan to the side, the heat emitted from the side closer to the fan will be blown to the farther electric heater, and your seat will also feel slightly cooler. The faster the fan blows, the cooler it will be. This is similar to the principle in thermal induction tubes, where the strength of the fan (air volume) equals the flow rate of the gas. On the other hand, to detect the flow rate, you can say, "Measure the amount of heat that moves between two electric heaters when the gas flows through Measurement and control of fuel gas mass flow rate for boilers and cracking furnaces; 2. Measurement of mass flow rate for petrochemical, oil extraction, and flare gas; 3. Measurement and
2. Application range of thermal gas mass flowmeter
Thermal gas mass flowmeter has a wide range of applications, covering multiple industrial fields and scenarios.
. 1. Public utilities are mainly used for monitoring electricity, gas, and water treatment, and can measure gases in pipelines, general system gases, biogas, coal gas, natural gas, liquefied gas, and boiler preheating air. 2. The petroleum and natural gas industry covers energy exchange, well filling gas recovery, gas metering, gas quality analysis, leak testing, natural gas measurement, and torch gas monitoring. 3. The power industry plays a role in gas distribution processes in fuel systems, boiler and auxiliary systems, gas furnaces, hydrogen gas measurement, as well as primary and secondary air measurement in power plant blast furnaces. 4. The chemical industry can be used for g
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