Problems with the pressure pump
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I have a question: using a pump to circulate hot water through a pipe with many holes (let’s say 25 holes), in order to heat products by spraying the water. Now, since the nozzles at the rear part of the pipe are no longer needed due to equipment upgrades, those unnecessary nozzles have been blocked (for example, 3 of them were blocked), which increases the pressure of the spray water. How can it be modified so that the spray pressure remains unchanged while reducing the water flow rate and thus saving energy?
The best way is to cut the impeller of the pump to make it smaller.
For centrifugal pumps, simply install a flow control valve at the outlet and a pressure gauge behind the valve.
Well, it’s a centrifugal pump; mainly, the outlet pipe is quite thick, and I’m worried it might be difficult to cut
This method... If I want to restore it in the future, I’ll have to replace the pump, right?:L
Is a frequency converter + centrifugal pump a good combination? Can the maximum capacity of the pump be increased in this way? Is it possible to reduce the frequency and flow rate by setting a maximum value? I don’t quite understand; please advise.
Just increase the outlet and use a return pipe to send it back to the tank where the pump is located
Without increasing costs, cutting the impeller is the best option
Thank you for the reply. How much does it take to cut the impeller? How should it be determined?
Do you have a lathe with a cutting wheel? ! If you install an inverter, it is necessary to fit pressure gauges and flow meters on the pipelines; the calculations related to frequency conversion are theoretical values that need to be adjusted based on actual conditions on site ； For those with very small flow rate changes, it’s better to adjust the outlet valve