Regarding the circulation pump of forced-circulation evaporators
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Axial flow pumps are generally used as the circulation pumps in forced-circulation evaporators, but cannot other types of pumps be used? In cases involving high levels of risk, due to sealing issues, can magnetic pumps be used? Please, let everyone talk!
Magnetic pump flow rates cannot be that high.
In my opinion, since a lower head pressure is sufficient for normal requirements, an axial flow pump will do; other pumps will also work as long as there is no issue with cavitation, although their cost-effectiveness may not be high.
Forced circulation pumps are primarily used in the diaphragm evaporation process for caustic soda production; since this process requires a large flow rate and significant head, axial flow pumps are the preferred choice
Actually, it doesn’t matter; we use shielded pumps, and this is also related to the properties of the material. All factors should be taken into consideration, rather than focusing solely on one aspect
As mentioned above, it is necessary to consider everything in an overall manner, rather than focusing solely on one aspect!
Axial flow pumps are used more often, mainly because they offer a large flow rate; the head requirement is not high, and it isn’t fixed either – each case needs to be analyzed on its own
It has advantages – cavitation does not occur easily.
Evaporation forced circulation pumps come in axial flow and mixed flow types, depending on the height of the evaporation chamber and the process requirements. However, for current processes such as evaporation and concentration, chemical axial flow pumps are the mainstream choice. This pump is characterized by high flow rates and low head, with a requirement for large circulation volumes and low pulsation; ordinary centrifugal pumps do not possess such features. In cases where seal leakage is a concern or when transporting flammable and explosive materials and high reliability is required, a better sealing solution can be chosen, such as a tandem dual-seal structure. Example: Propylene loop axial flow pump. Our company, Feiyue Pump Group, was established in 1957 and is one of the earlier manufacturers in the industry to produce forced circulation pumps. We have accumulated extensive experience in special materials and designs, and are willing to discuss issues related to production, application, and manufacturing processes together. www.fy-pump.com Wang Tao 13852620050 jsfeiyue@163.com
Pump selection is based on the properties of the material and the requirements of the process. Forced circulation involves high flow rates and low head pressures, which are characteristic of axial flow pumps; therefore, axial flow pumps are generally used for this purpose. If there are other types of pumps that can meet these process requirements, they can also be considered. However, I am not aware of any other pumps that can satisfy the needs of forced concentration circulation. If you know of any such pumps, please recommend them to me. I can use it.