Annubar flowmeter? General flowmeter companies can produce it. It is just a name, just like a mass flowmeter. Many companies at home and abroad can produce it.
I can show you some principles:
The Pitot tube measurement principle is used to measure the pressure difference formed between the dynamic pressure upstream of the barrier and the static pressure downstream, so as to measure the flow rate. purpose. When the fluid flows through the probe, a high-pressure distribution area is generated in front of it, and the pressure in the high-pressure distribution area is slightly higher than the static pressure of the pipeline. According to the principle of Bernoulli's equation, the fluid speed increases when it flows through the probe, creating a low-pressure distribution area at the rear of the probe. The pressure in the low-pressure distribution area is slightly lower than the static pressure of the pipeline. The fluid flowing through the probe creates a partial vacuum at the rear of the probe and creates vortices on both sides of the probe.
Measuring pipe diameters between DN20 and DN12000. Annubar flow meters are mainly used for the measurement of various energy sources such as liquids, fuel gases, steam and gases in industrial processes, and have high stability and repeatability.
1. Specifications: DN50-DN5000 (mm); plug-in type: DN500-DN5000 (mm);
2. Measurement accuracy: ±6.0; Repeatability: ±0.1;
3. Range: volume flow rate: 10:1; mass flow rate: 8:1;
4. Working pressure: velocity equalizing pipe without functional type: ≤20MPa;
The velocity averaging tube can be extracted: ≤10MPa;
5. Fluid temperature: ≤450℃;
6. Medium viscosity: ≤30CP (equivalent to heavy oil );