Cavitation in the condensate transfer pump
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Cavitation occurs in the pump used to transport the condensate, and sometimes the condensate cannot be sent out; in such cases, the outlet valve must be closed and then reopened, after which the condensate can be transported. Why is it enough to just close the valve? If anyone knows the reason, please explain it. Thank you. Bonus points
At low flow rates, the inlet velocity is low, so the pump is less prone to cavitation. However, the pump’s flow rate must be maintained above the minimum value specified by the thermal control system; otherwise, cavitation will still occur.
The outlet pressure isn’t high, right? Reduce the outlet valve to build up pressure.
Take a look at the impeller of our condensate pump~~~
Apply pressure to see what the structure of the pump is; considering adding an impeller might be a good idea
There is a type of failure known as vapor lock~~~ You can look it up on Baidu~~~ Closing the valve is one way to resolve this issue~~~ To solve it permanently, a heat exchanger should be installed in front of the pump, using circulating water to lower the temperature of the condensate further~~~