Gas flow measurement method
sales01@cxflowmeter.com
Gas flow measurement is a common measurement work in industrial production. Its purpose is to control and regulate gas flow to ensure the stability and safety of the production process. in gas
There are many commonly used methods for flow measurement, which are introduced below.
1. Pressure difference method
The differential pressure method is a common gas flow measurement method that uses the pressure difference of the flow meter
Pressure sensors measure the pressure difference as the gas passes through the pipe, thereby calculating the gas flow rate. The difference is that the advantage of the pressure method
is that it has a wide measurement range, can be suitable for flow measurement of various gases, and also has high accuracy and stability. However, the disadvantage of the differential
pressure method is that it requires the installation of differential pressure sensors, instruments and flow meters, which is expensive and requires regular maintenance and calibration.
Thermal flow meter is a method of measuring gas flow using thermal sensors. The principle is
Superheat the gas, measure the temperature difference before and after heating, and calculate the gas flow rate. hot
The flow meter has fast response speed and high accuracy, and is suitable for harsh environments such as high temperature and high pressure.
Its advantage is, but its disadvantage is that it has high requirements on the physical properties of the gas and is easily affected by the ambient temperature.
The influence of factors such as temperature and humidity.
3. Ultrasonic flow meter
Ultrasonic flow meter is a method of measuring gas flow using ultrasonic waves. The principle is to emit ultrasonic waves, measure the propagation speed and direction of ultrasonic
waves during gas flow, and calculate the gas flow rate. Ultrasonic flow meter has non-contact measurement and fast response speed
The advantage is high accuracy, but the disadvantage is that it requires higher physical properties and flow conditions of the gas.
High and easily affected by factors such as dirt on the inner wall of the pipeline and impurities in the gas.
Mass flow meter is a method of measuring gas flow using a mass sensor. The principle is
Gas flow is calculated by measuring the change in mass of the gas as it passes through the pipe. quality
The flow meter has high accuracy and is suitable for measuring the flow rate of various gases and is not affected by gas substances.
The advantage is that it is affected by physical properties and flow state, etc. The disadvantage is that the cost is high and it requires
Regular maintenance and calibration.
There are many ways to measure gas flow, each with its own advantages, disadvantages and applicability. When selecting a gas flow measurement method, various factors need to
be considered based on the actual situation.
Choose the most appropriate method. At the same time, measuring equipment needs to be maintained and calibrated regularly,
Ensure the accuracy and reliability of measurement results.
If you want to know more, please contact CIXIFM winny: sales01@cxflowmeter.com
