High-pressure centrifugal pump
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The high-pressure centrifugal pump we use experiences significant fluctuations in flow rate during the pump switching process. I would like to ask for detailed instructions on how to carry out the pump switching in such a way as to maintain a stable flow rate during actual production
Let’s first talk about your process
Generally, the regulation fluctuations of high-pressure liquid pumps are quite large, as the high pressure and low flow rate make it difficult to control the range of adjustment. It seems to be a technique issue after all. Slow, slight movement is key. However, in practice, it often makes it difficult to carry out operations under emergency conditions in a slow and steady manner.
The bypass piping of high-speed pump systems, as well as operations such as starting, stopping, and adjusting them, come with specific requirements and procedures; it’s impossible to explain them clearly in just a few words without referring to specific cases.
I once proposed using the pump outlet pressure to control the flow rate back, but it was rejected by the design team for safety reasons
Backflow should be used to adjust the outlet flow rate