Will increasing the pressure with a pipeline pump affect the water supply to other branches on the same main pipe?
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RT, I would like to ask the experienced colleagues: In a certain project, the pressure of the water supply from the factory is about 0.3 MPa too low. The main water pipeline (industrial low-pressure pipeline) has a diameter of DN150, and there are open-circuit cooling circulation pipes with diameters of DN40 and DN25 connected to it. If a DN100 pipe is connected to this DN150 main pipe to supply water to points at a height of 40–50 meters, there is concern that the pressure might not be sufficient; therefore, an additional pipeline pump with a flow rate of 60 m3/h is being used. Will the operation of this booster pump cause a lack of water or insufficient pressure in the adjacent cooling circulation pipes?
This method works. As long as the balance is adjusted properly with valves, there will be no issue of the cooling water pipes adjacent to it running out of water or having insufficient pressure when this booster pump is turned on.
Where is the booster pump installed? After the DN40 and DN25 circulating water pipes?
I would like to ask: with such high backflow pressure, will it still be possible for the water to return to the system? Will it affect the water supply and return for other users who rely on cooling water?
This post was last edited by WSRYLONG on 2022-1-18 at 09:50. “I would like to ask: with such high pressure of the returning water, can it still return to the system? Will it affect the water supply and return for other users who rely on cooling water?” " If it merges with other branches into the same return main, a higher pressure in this branch will affect the other returns. In such cases, the backflow pressure in this circuit is significantly higher than that in the others; it is best to handle the backflow separately, or adjust the pressure balance according to the actual conditions of the piping (for example, if the pipeline in this circuit is long and results in a large pressure drop, the pressures at the junction points tend to be similar). Adjusting the pressure balance requires ensuring that the flow requirements are met, as the two factors influence each other, and it is not possible to focus on one at the expense of the other.