Basis for selecting axial flow pumps and centrifugal pumps as the circulation pumps for MVR evaporators
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As the title suggests, what are the criteria each of you uses when choosing the type of circulation pump for designing evaporators?
I’m also curious and hope an expert can answer it
A swirl pump should be used in the mechanical evaporation MVR cycle, as solids may precipitate during the evaporation process; when transporting fluids containing solid particles, a swirl pump is more suitable than a conventional centrifugal pump.
A regular centrifugal pump is likely not suitable due to the high temperature.
For normal circulation, it is common in design to use clear liquid as the circulating fluid, with a low solid content
When there are solids present, it is better to choose a cyclone pump.
Based on flow rate and head, axial flow pumps have a high flow rate but a low head.
For the forced circulation pump in an MVR forced circulation system, an axial flow pump or a mixed-flow pump should be selected (axial flow pumps offer high flow rates and low head pressures, and they can also transport materials containing crystal particles)