Shielding pumps feature a design where both the pump head and motor are enclosed within a pressure vessel filled with the pumped medium. This pressure vessel uses only static seals, eliminating the need for dynamic seals that could lead to leakage. The impeller and motor rotor are mounted on the same shaft, and the motor is isolated from the stator and rotor by a shield sleeve. In this configuration, the rotor operates directly within the transported medium, and power is transmitted through the magnetic field of the stator to the rotor. As shown in Figure 2-15, this unique setup ensures a completely sealed system.
Today's latest order information is available for free! Don't miss out—get the most updated buyer details every morning! Grab your chance now!
The fluid being pumped enters the pump through the inlet and flows into the pump housing. In vertical shielding pumps, the rotation of the impeller lifts the medium, while in horizontal models, the movement is driven by the impeller’s rotation. Most of the fluid is discharged through the pump outlet. However, a portion of the medium is directed into the motor area, where it first lubricates the front bearing. It then passes through the stator shield sleeve and rotor shield sleeve, providing cooling for the motor. After that, it lubricates the rear bearing before returning to the center of the rotor shaft through a central hole and finally back to the pump inlet. This internal circulation is driven by the pressure difference between the pump outlet and inlet, ensuring continuous cooling and lubrication of critical components.
Sling,Flat Belt Sling,Webbing Sling Belt,Polyester Flat Webbing Sling
Jiangsu Zhongyi Work Rigging Co., Ltd. , https://www.zy-rigging.com