Diversion shell action principle and design theory of deep well pump
deep well pump - flow components together constitute diversion pump casing and impeller, and therefore have a great impact on pump performance, is in addition to a part of the impeller greatest impact on pump performance. But it has a different nature and water conservancy impeller design, impeller is a rotating member, is to increase the energy of the liquid components is a decisive part of the flow and head, but also the most affected parts of the pump efficiency. But diversion shell is stationary, it can not add energy to the liquid, but only the loss of fluid energy, water conservancy diversion shell is designed to reduce energy losses through the liquid to reduce head and efficiency.
deep well pump - diversion shell design is good or bad, so that the pump efficiency may differ by more than 20%, so the diversion shell design is very important. Design Theory in Water and diversion casing and impeller design basis is different. Guide vane pump casing is not based on the basic equation and Bernoulli's equation but speed remains Theorem
