thermal mass flow meter application

The thermal gas mass flowmeter is an instrument for measuring fluid flow by using the principle of heat conduction. The instrument uses constant temperature difference method to accurately measure the gas mass flow. The thermal gas mass flowmeter has the advantages of small size, high digitization, easy installation and accurate measurement.

The thermal gas mass flowmeter is used for the measurement of a single component of gas or a fixed proportion of mixed gas, and has been widely used in petroleum, chemical, semiconductor, medical instruments, biological engineering, combustion control, gas distribution, environmental monitoring, precision instruments, scientific research, metrology, food, metallurgy, aerospace and other fields.

Thermal gas mass flowmeter due to its various advantages and characteristics, now has been widely used in various industries flow measurement, in the actual measurement of thermal gas flow meter technical advantages are more and more obvious, the following we on the thermal gas mass flowmeter application occasions and some of their own technical advantages do some introduction, hope to be useful to you:

In the industrial field, companies need to use natural gas, hydrogen and other gas in many process production, sometimes also need oxygen, nitrogen, argon and other made of gas, this part of the gas cost needs to be controlled and monitored, and the selection of monitoring instruments need to consider various issues:

The thermal gas flowmeter adopts the principle of thermal diffusion, and the thermal diffusion technology is a technology with excellent performance and high reliability under harsh conditions. Typical sensing elements of thermal gas mass flowmeters include two thermal resistors (PT100), one is a speed sensor and one is a temperature sensor that automatically compensates for changes in gas temperature.

Thermal gas mass flow meter is used to measure and control the gas mass flow meter, different from other gas flow meters, do not need to carry out pressure and temperature correction, directly measure the gas mass flow.

In order to solve the problem of leakage caused by poor measurement accuracy or inability to measure below the lower limit of the instrument, a new type of thermal gas mass flowmeter is developed based on the theory of forced convection heat transfer and the principle of hot wire anemometer. The sensitivity of the instrument is greatly improved and the dead zone of the instrument is reduced by using microfilament structure in the sensitive element and the velocity measuring heating element.

Although the thermal gas mass flowmeter has many advantages in this respect, it can not be used for large pipe runoff measurement, pressure loss is relatively large, and the price is more expensive, which limits its measurement application in natural gas long distance pipeline.

Thermal Gas Mass Flow Meter is also divided into flange link Thermal Gas Mass Flow Meter and plug-in link Thermal Gas Mass Flow Meter, The following describes the application scope of the Thermal Gas Mass Flow Meter.

At present, oxygen generator in the production process will be affected by external influences, more and more enterprises for fine management, energy consumption, cost accounting and other requirements for the loss of this part of the oxygen measurement.

The application of thermal gas mass flow meter in various industries