UK ABWR Reactor Internal Pump (RIP)

Each Reactor Internal Pump (RIP) is directly mounted to the bottom of the RPV and supplies coolant (water) to the reactor core. The station’s power output can be controlled by changing the RIP’s rotation speed. This design takes away the need for external circulation pipes and as such gives an even greater reduction in potential radiation  exposure for workers. This exposure is well within UK limits – and far lower than day-to-day exposure to natural background radiation. This is a major design difference between the UK ABWR and previous designs of BWR.

1. Impeller and Shaft

   1. Impeller and Shaft

   

2. Reactor Pressure Vessel

   2. Reactor Pressure Vessel

   
   • For more information go to the Reactor Pressure Vessel page.

3. Welding
4. Nozzle Gap
5. Inspection Window
6. Tilting Pad Radial Bearing

   6. Tilting Pad Radial Bearing

   

7. Thrust Disk

   7. & 8. Thrust Disk & Auxiliary Cover

   

8. Auxiliary Cover
9. Wearing
10. Diffuser

    10. Diffuser

    

11. Nozzle
12. Rotor

    12. Rotor

    

13. Stator

    13. Stator

    

14. Wet Motor
15. Motor Cover

    15. Motor Cover