Seeking help with a processing issue: pump head problem. How should the calculation parameters for the head software be determined?
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Everyone, I have installed a head calculation software on the platform, as shown in the figure below. I would like to know how to determine the discharge pressure and suction pressure of the pump Is the pump head = the inlet pressure of the pump + the outlet pressure of the pump? In the case of a pressure vessel at atmospheric pressure, with a height difference of 2 meters between the liquid level and the pump inlet and the pump being located at a lower level, how can the suction pressure be determined under such conditions?
Regarding the definition of head: https://baike.so.com/doc/3687158-3875055.html. The suction pressure you gave as an example is approximately 0.02 Mpa (2 meters)
What about the discharge pressure of that pump? Besides calculating the height, should we also calculate the resistance of the pipeline?
The discharge pressure of a pump needs to take into account the following three factors: (1) the pressure at the target point, P1; (2) the pipeline resistance loss and equipment resistance loss, P2; (3) the inlet pressure of the pump, P3. The discharge pressure = P1 + P2 – P3