Pump shaft cooling
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On-site, I observed that in addition to the area where the mechanical seal is located and which requires cooling water, there is also cooling water used to cool the shaft. I would like to ask the experts: under what circumstances is it necessary to use cooling water to cool the shaft of a pump?
The titanium pumps we used from Xi’an Pump and Valve Factory in the past had mechanical seal cooling as well as shaft cooling; ammonia was used as the cooling medium, and the temperature was 170 degrees
If the temperature of the fluid being transported is very high, consideration should be given to the cooling requirements of the bearings. But for details, you still need to ask the pump manufacturer.
It’s indeed best to ask those who sell pumps – they know the most about this. There are quite a few experts in pump sales at Haichuan; you can invite them to provide answers. It seems that high temperatures of the pump shaft can affect its concentricity, and high-speed pumps are particularly vulnerable to this issue. If the pump shaft deforms slightly due to heat expansion, the pump may stop working when operating at high speeds~
This is determined by the pump manufacturer based on the data sheet provided in the design. As part of the design, it is sufficient to handle only his cooling source.