Installation of the source component
Thread Content
The pressure sensing element and the temperature sensing element are installed on the same pipeline; should they be placed upstream of the temperature sensing element? Why?
It’s a simple principle: if it is installed on the downstream side, the thermometer being inserted into the pipe will create eddies that affect the measurement of the pressure downstream, resulting in pressure fluctuations.
The 2nd floor is fine. Pressure should come before temperature.
Is there really that much to it? The resulting vortices can affect the measurement of pressure downstream, causing pressure fluctuations? What impact can this possibly have? How precise can your pressure gauge be, and is such a high level of accuracy really necessary for monitoring the pressure in pipelines? I hope the expert can provide an answer. Thank you
Personally, I think it doesn’t matter. If there are requirements, follow the standards; if not, do it according to your own ideas. Does it make a big difference? Not necessarily
Fluid disturbances generate vortices and dynamic pressure
The insertion of the temperature sensor component causes disturbances in the downstream flow, affecting pressure measurements； The principle behind the generation of lift by an airplane’s wings is that the air flow above takes a curved path and thus has to move faster; the pressure difference resulting from this speed difference between the upper and lower areas can lift the airplane. Therefore, the pressure disturbances caused by the component from which the insertion temperature is derived on the local tube wall cannot be ignored.
When dynamic pressure is generated, dynamic pressure white is formed. Dynamic pressure is also the pressure along the pipeline in the direction of flow velocity. A pressure gauge takes pressure readings perpendicular to the pipeline and perpendicular to the direction of flow; it measures static pressure, not dynamic pressure! So, whatever happens to the dynamic pressure, it can change or not; if it changes, then let it go to hell. Whatever, :lol The static pressure readings obtained by installing a pressure gauge in front of and behind the thermometer are all the same...... Just like when you stand in front of a monument or behind it, your height remains the same, and the length of your body also stays the same........ You keep looking around with wide eyes, or with narrow eyes, but you still remain unchanged........ Right? :lol