Customized Alloy Steel Aluminum Alloy Hardware Products CNC Lathe Machining Five Axis CNC Machining China

Customized Alloy Steel Aluminum Alloy Hardware Products CNC Lathe Machining Five Axis CNC Machining China

The role of the impeller:
The impeller not only refers to the wheel disc with moving blades, which is an integral part of the impulsive steam turbine rotor, but also refers to the general term for the wheel disc and the rotating blades installed on it. Impellers can be classified according to shape and opening and closing. The concept of impeller: Impeller refers not only to the wheel disc with moving blades, which is a component of the impulsive turbine rotor, but also refers to the general term for the wheel disc and the rotating blades installed on it. Impellers are commonly cast or welded, and the material is selected according to the working medium.
Main function: The impeller is to convert the mechanical energy of the prime mover into the static pressure energy and dynamic pressure energy of the working fluid.

Classification
According to the blade form, it is divided into three types: open impeller, closed impeller, and semi-open impeller.
The closed impeller consists of front and rear cover plates and blades;
The semi-open impeller consists of blades and back cover;
Open impellers have only blades and part of the back cover or no back cover.
The semi-open and open impellers in the vane impeller are easy to cast and can transport the medium containing certain solid particles, but the working efficiency of the pump will be reduced due to the erosion of the flow channel by the solid particles.
The closed impeller has high operating efficiency and can run smoothly for a long time. The axial thrust of the pump is small, but the closed impeller is not easy to transport sewage media containing large particles or long fibers.
According to the working mode, it is divided into single-suction impeller and double-suction impeller.
Single suction impeller means that the impeller sucks the liquid from one side.
Double suction impeller means that the impeller sucks liquid from both sides and has excellent anti-cavitation performance.
According to the structure, it is divided into four types: flow channel type (single flow channel, double flow channel), vane type (closed type, open type), spiral centrifugal type and swirl type.

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