PUMP FOR DELIVERING LIQUID-METAL HEAT CARRIER Russian patent published in 2004 - IPC

FIELD: nuclear engineering.

SUBSTANCE: proposed pump for delivering liquid-metal heat carrier has housing, working wheel secured on shaft connected with drive and installed with slot clearance relative to nonrotating units, and heat carrier overflow hole. To prevent getting of liquid metal into slot seal of shaft, protective wheel is installed on shaft over liquid-metal overflow hole. Said wheel is made in form of disk with radial blades. Lower edges of blades are tilted relative to free level of heat carrier so that clearance between blades and heat carrier lever decreases from center to periphery.

EFFECT: prevention of getting and subsequent solidification of metal in slot clearance, sealing unit and bearing units of pump.

1 dwg