Analysis and Controlling Method of Pump Vaporization in Heat Supply Network

The cavitation in pump is an important factor impacts the operating safety of the pump, and against the cavitation occurrence, this paper chooses the SM253-640 centrifugal water pump as the study object to analysis the reason and the harm caused by cavitation. And this paper showed how to line-pump cavitation, especially, while the flow rate of the medium is very small and the temperature is high. The safety operating interval of the pump was analyzed in this paper, and showed how to avoid the pump cavitation and improve the pump working efficiency, to ensure the safety and economic operation of the heat supply network.Introduction