Regarding the installation height of the pump
Thread Content
When calculating the problem of the oil pump sending the still liquid at the bottom of the distillation tower to the storage tank, the allowable installation height of the pump is found to be -3.4 meters. Why was it determined to be 4 meters in order to consider safety needs when selecting? Isn’t the maximum only 3.4 meters? A little confused? Please give expert guidance!
The vacuum height of the selected pump must be greater than 0.3 meters above the calculated value.
Reply to 1# lovephile The installation height is greater than the allowable suction height of the pump, which is determined based on the specific situation. For example, if a pump pumping river water is afraid of flooding in the rainy season, it should be installed at a higher position. Solution: A bottom valve is installed at the pump inlet, and it can be used after it is equipped with a vacuum pump.
This pump requires a minimum perfusion head of 3.4 meters. Generally, a margin of 0.3 meters is added. Of course, 4 meters is better. Note that this pump is for perfusion, that is, the pump inlet is lower than the tower outlet. Of course, the bigger the better.