Thermal mass flowmeters application

Thermal mass flowmeters, leveraging their advantages such as direct mass flow measurement, low pressure loss, and high sensitivity, are widely applied in multiple fields as follows:

1. Industrial Process Control

• Gas flow monitoring and control: For instance, in the chemical and petrochemical industries, they are used for metering and proportioning raw material gases (like hydrogen, oxygen, nitrogen); in semiconductor manufacturing, they ensure the precise delivery of high-purity gases (such as silane, ammonia) to guarantee process stability.
• Combustion system optimization: In equipment like boilers and furnaces, they measure the flow of combustion-supporting air or fuel gases (such as natural gas, propane) to achieve accurate adjustment of the air-fuel ratio, improving combustion efficiency and reducing pollutant emissions.
• Vacuum system monitoring: In scenarios like vacuum coating and vacuum drying, they monitor the micro-flow of gases under low pressure to ensure the stability of the vacuum environment.

2. Environmental Protection and New Energy Fields

• Waste gas emission monitoring: They conduct real-time metering of the flow of industrial waste gases (such as flue gas from power plants, chemical tail gas). Combined with pollutant concentration analysis, they realize total emission monitoring to meet environmental protection regulations.
• New energy equipment: In fuel cell systems, they accurately measure the flow of hydrogen and air to ensure efficient electrochemical reactions; in biomass energy utilization, they monitor the output and transportation flow of biogas.

3. Medical and Laboratory Sectors

• Medical equipment: They are used for flow control of oxygen and air in ventilators to ensure accurate respiratory parameters for patients; in anesthesia machines, they monitor the flow of anesthetic gases to ensure the safety of anesthetic doses.
• Laboratory research: In micro-flow experiments (such as gas feeding in chemical reactors, measurement of gas permeation in material testing), they provide high-precision flow data to support scientific research and analysis.

4. Food and Pharmaceutical Industries

• Clean fluid metering: In food processing, they control the flow of sterile air and inert gases (such as carbon dioxide) to prevent food from oxidative deterioration; in pharmaceutical production, they monitor the flow of clean gases (such as compressed air) to ensure the production environment complies with GMP standards.
• Liquid flow measurement: They perform accurate flow metering for low-viscosity, clean medicinal liquids or food raw materials (such as alcohol, syrup) to ensure the accuracy of formula proportions.

5. Energy Management and Metering

• Natural gas/ fuel gas metering: They serve as metering tools for trade settlement or energy consumption monitoring in urban gas distribution and industrial gas consumption statistics, especially suitable for small and medium flow scenarios.
• Compressed air metering: They monitor the consumption of compressed air in factories, helping enterprises optimize energy usage and reduce energy consumption costs.