In the field of industrial production and gas monitoring, accurate measurement of gas flow rate is a key link to ensure production safety, efficient operation, and quality monitoring. As an advanced flow measurement instrument, the clamp gas mass flowmeter has been widely used in many industries due to its design principles and performance characteristics. This article will delve into the characteristics and applications of clamp gas mass flow meters based on relevant reference materials.

1、 Working principle of clamp gas mass flowmeter

Clamp gas mass flowmeter is an instrument that uses the principle of thermal diffusion to measure gas flow rate. Its sensor consists of two reference level thermistors（RTD）Composition, one is a speed sensorRHThe other is a temperature sensor that measures changes in gas temperatureRMGWhen these twoRTDWhen placed in the gas being measured, the sensorRHHeated, while the sensorRMGIt is used to sense the temperature of the measured gas. As the gas flow rate increases, the airflow will take away more heat, causing the sensor toRHThe temperature drops. By measuring the temperature difference between these two sensors, the instrument can accurately calculate the mass flow rate of the gas.

2、 Characteristics of Clamp Gas Mass Flow Meter

Easy installation and simple maintenanceThe clamp type connection design makes the installation and disassembly process of the flowmeter extremely simple, reducing installation costs and time. Meanwhile, its bidirectional detection function and anti vibration design also ensure the stability and accuracy of the measurement.

High precision and wide range ratio: The clamp gas mass flowmeter has high-precision measurement capability, with an accuracy of up to1%The reading±0.5%The full range and repeatability are±0.2%F.SIn addition, its wide range ratio（100：1）Enable the instrument to adapt to the measurement needs of different flow ranges.

Multi parameter detection and display: This flowmeter can not only directly measure the mass flow rate of gas, but also simultaneously detect and display the temperature of gas, achieving the function of one machine for multiple purposes.

Large caliber small flow measurement capability: Clamp gas mass flow meters are particularly suitable for small flow measurement in large-diameter pipelines, which gives them advantages in applications such as leak detection.

Proprietary technology and algorithms: adopting proprietary technology“Double balanced structure”Encapsulated sensors and proprietary high humidity and high temperature algorithms enable instruments to operate at high temperatures500℃Stable operation at medium temperature, and measurement results are not affected by humidity.

No need for temperature and pressure compensation: Direct mass flow detection without additional temperature and pressure compensation simplifies the measurement process and improves measurement efficiency.

3、 Application of Clamp Gas Mass Flow Meter

Mining and ventilation system: In the underground gas extraction, supply and exhaust systems of mines, clamp gas mass flow meters can detect the air volume (speed) in real time, ensuring the safe and efficient operation of the ventilation system.

Oil and gas industry: In natural gas pipelines, this flowmeter is used to measure gas mass flow rate, achieving strict control and monitoring of industrial processes. Meanwhile, it also plays an important role in scenarios such as well gas recovery, leak testing, and flare gas monitoring.

Chemical and pharmaceutical industries: In chemical processes such as heating, cooling, mixing, and reaction, clamp gas mass flow meters are used to measure the mass flow rate of various chemical gases and vapors to ensure the stability and safety of the chemical process. In the pharmaceutical industry, it is used to measure the gas flow rate of various drugs, ensuring the accuracy of the pharmaceutical process and the quality of the drugs.

Food processing and packaging: In the process of food production, processing, packaging, etc., this flowmeter is used to measure the gas flow rate of various food raw materials and control the packaging and filling of food, ensuring the hygiene and safety of the production process.

Environmental monitoring and scientific research: In environmental monitoring, clamp gas mass flow meters can be used to measure exhaust emissions, air quality monitoring, etc. In the field of scientific research, it is widely used to control and measure the flow rate of gases in experiments, such as fluid dynamics, chemical reactions, and other studies.

Clamp gas mass flow meters play an important role in industrial production and gas monitoring due to their working principle, performance characteristics, and wide application fields. With the continuous advancement of technology and the expansion of application scenarios, it is believed that clamp gas mass flow meters will play a more important role in the future.