Two classifications of impeller
Release time:
2022-04-22
The closed impeller: It consists of blades and front and rear cover plates. The closed impeller has high efficiency and is difficult to manufacture, and is most used in centrifugal pumps. It is suitable for conveying clean liquids with low viscosity and no particles, such as clean water and solutions.
The closed impeller:
It consists of blades and front and rear cover plates. The closed impeller has high efficiency and is difficult to manufacture, and is most used in centrifugal pumps. It is suitable for conveying clean liquids with low viscosity and no particles, such as clean water and solutions.
The semi-open impeller:
There are generally two structures: one is the front half-open type, which is composed of the rear cover plate and the blades. This structure has low impeller efficiency, and a sealing ring with adjustable clearance is required to improve the efficiency; the other is the rear half-open type. It is composed of a front cover plate and a blade. Since the same sealing ring as the closed impeller can be applied, the efficiency is basically the same as that of the closed impeller, and the blade also has a sealing function (back blade or auxiliary impeller) in addition to conveying liquid. The semi-open impeller is suitable for conveying liquids containing suspended solids such as solid particles and fibers. The semi-open impeller is less difficult to manufacture, low in cost, and has strong adaptability.
Through the above introduction and analysis of the impeller, hope it helps you.
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Hans Wang
Jacinda Lee
Sharon Zhao
David Yang
Binzhou Zeli Precision Metal Technology
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