What is the relationship between pump power, lift and flow?
The pump power is more marked discrepancies in the actual application, power flow, power and small traffic hours, head directly determines the flow, high lift flow is small, the power is small. This view is the largest public understanding of the subversion of the original. I 1.1KW a self suction pump the actual operation of the power, it is able to explain this, 1.1KW would say 1.1 per hour of electricity, but I made a note of the meter, the per hour only 0.6 degrees, no wonder people say the true power of pump not so much, such as 1.1KW, said to be only 750W this is true, I believe. The rated power of pump or need to reach the normal traffic to its go to this value, or is the virtual standard, industry inertia. I put the home pump is pumping, water is two hundred or three hundred meters away a shallow river, because of the long distance, flow Volume is not very large, basically only rated 1/3 bar, and I do not know is the flow of low power consumption reduction, or the actual power of the pump did not mark that big, it is still under exploration...
N= QH/1000 gamma ETA gamma, severe liquid, cattle - ETA / m3; efficiency; N- kW; H- head, power meters;Q- volume flow per cubic meter / sec.
When the power is constant, the kinetic energy theorem is known as P=F*V, that is, W=F*S.In the water pump, it is said that the work done by the unit time pump = the gravity of the water flow * the displacement of the waterIt can be seen that:1, the power is certain, the head and the flow is inversely proportional.2, the greater the power, the greater the product of the head and flow.Therefore, when the flow is minimum, the pump head is the maximum; when the head is the minimum, the flow is the maximum.
