Explain the principle by looking at the diagram?
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Also, is there any professional instrument technician who can help me understand the principle behind this instrument? ? ? ? ? There are also some cases where there is an expansion vessel at the sampling point, and then it goes to the transmitter through a pressure conduit? ? ? What’s the principle? ? ?
Aniuoba flow meter – figure out its principle by yourself. Pay attention to the installation direction.
The first image shows a three-valve assembly; the second image is probably a differential pressure gauge, or something similar like a differential pressure flow meter
Volumetric flow meter, also known as Anubas flow meter
What was said on the 4th floor is correct – it’s a constant-velocity pipe flow meter. It is a type of differential pressure flow meter. Pay attention to the direction of dynamic and static pressure. The dynamic pressure measurement port faces the flow.
The Aniuoba flow meter is a velocity-type flow meter that utilizes the principle of dynamic pressure of fluids: The energy that fluid in motion retains as part of its flow is known as dynamic pressure energy. The dynamic pressure energy of a fluid is related to its flow velocity; when the motion state of the fluid changes, its dynamic pressure energy is converted into dynamic force that acts on the object responsible for changing that fluid’s motion state. By detecting the force exerted on this object or by directly measuring the dynamic pressure, it is possible to determine the flow velocity, and thereby obtain the flow rate. The probe of the Aniuoba flow meter is a cylinder with gaps in the middle and openings on both sides; in effect, it consists of two tubes with openings on their sides. The openings facing the flow direction are capable of detecting the dynamic pressure plus static pressure of the fluid, while those facing away from the flow direction detect only the static pressure. The sum of the squared pressures across these two tubes is proportional to the flow velocity (i.e., flow rate). Since the flow velocity varies at different points within the pipe, multiple holes are used to obtain an average flow velocity. The Anouba flow meter is therefore also known as a constant velocity tube or flue tube.
Your explanation perfectly resolved my doubts
Anouba flow meter, large inlet, small outlet
I mean, is it okay for the pressure guide tube to be bent like this?