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Thermal conductivity pump performance curve or characteristic curve, in fact, thermal conductivity pump performance curve is the liquid in the pump movement of the external manifestations, obtained by the actual measurement. The characteristic curves include: QH, Q-Q, QN, Q- (NPSH) r, and the performance curve is Pump any point of flow, can be found in the curve of a group of its head, power, efficiency and NPSH value, this group of parameters is called the working state, referred to as working conditions or conditions point, the centrifugal pump The most efficient point of the condition known as the best condition point, the best condition point is generally the design condition point. Cavitation in a pump is the process by which bubbles in the pump and rupture of the bubble damage the overcurrent component. Pump cavitation in addition to the over-current components will have a damaging effect, but also produce noise and vibration, and lead to the decline in the performance of the pump, serious pump liquid will be interrupted, can not work properly. The general thermal conductivity of the pump rated parameters that the design conditions point and the best conditions coincide or very close. In the practice of selecting the efficiency of the interval operation, that is, energy saving, but also to ensure the normal operation of the heat transfer oil pump, so understand the performance parameters of the pump is very important.
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