I would like to ask the equipment specialists: will installing a tubular wound heat exchanger at the outlet affect the pump outlet pressure?
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Dear experts, the design pressure of the pump I’m working with is 2.5 kilograms; a tubular wound heat exchanger is installed at the outlet. All the pipelines have been checked, and the outlet pressure gauge shows a pressure of 3.5 to 4 kilograms when the pump is in operation. I suspect that this heat exchanger might be the cause of this issue. Please, those with experience in this area, could you provide some guidance?
As the export resistance increases, the pressure rises
There are two scenarios: 1. The diameter of the entire pipeline is too small, resulting in the flow rate of the fluid circulating being **less than the output flow rate of the pump; in this case, the pressure at the pump’s outlet increases； 2. The flow rate of the fluid passing through the heat exchanger is too low; this prevents proper matching with the pump, and it also results in an increase in pressure at the pump’s outlet.
It is a normal phenomenon: after installing a heat exchanger, the pipeline resistance increases, the flow rate of the centrifugal pump decreases, the outlet pressure rises, and the current drops.