Thermal gas mass flow meter is widely used in iron and steel plant, coking plant, petroleum, chemical industry, thermal power, medical treatment, thermal power plant, environmental protection and other industries. It is a real direct mass flowmeter, and users do not need to compensate for pressure and temperature. Thermal gas mass flowmeter has no moving parts, small pressure loss, wide measuring range ratio, high precision, high reliability, simple installation and convenient operation.
Main characteristics of thermal gas mass flowmeter:
1. High reliability;
2. No moving parts;
3. No temperature and pressure compensation is needed;
4. Good repeatability;
5. Fast response speed;
6. High measurement accuracy.
How it works:
FLQC thermal gas mass flowmeter is based on heat conduction technology to realize the measurement of gas mass flow. The measuring probe of the flowmeter has two platinum resistance sensing elements. They are placed in the fluid, one of which is heated to T1 by the power P, and the other is not heated to monitor the temperature of the medium, set to T2. Thus, a temperature difference T=T1-T2 occurs between the two sensing elements. When the flow rate is zero, T* is large. With the increase of mass flow rate Q, the heat of sensing element T1 is taken away, T1 decreases and T decreases. Therefore, there will be a certain relationship between the above heating power P, temperature difference T and mass flow Q. It can be expressed as follows: P/Δ T = K1+K2F (Q) K3 (1) Where K1, K2, K3 are constants related to the physical properties of gases.