Experience with Mechanical Seal of Prototype Fast Breeder Reactor’s Secondary Sodium Pump during Testing

Bhagwana Ram Manda; K.V. Sreedharan; S. Athmalingam; V. Balasubramaniyan; P. Chellapandi

doi:10.4028/www.scientific.net/AMM.592-594.1544

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Experience with Mechanical Seal of Prototype Fast Breeder Reactor’s Secondary Sodium Pump during Testing
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 592-594Experience with Mechanical Seal of Prototype Fast...

Experience with Mechanical Seal of Prototype Fast Breeder Reactor’s Secondary Sodium Pump during Testing

Abstract:

Prototype fast breeder reactor’s (PFBR) secondary pumps have sealing between the rotating shaft and the stationary parts to prevent cover gas leakage into ambient air. This is achieved by means of triple mechanical seals with oil as buffer fluid. The oil for cooling the mechanical seals and bearing is supplied from an external source and is re-circulated after cooling and cleaning. During testing of secondary pumps several issues related to mechanical seal arrangement, material, oil temperature and oil leakage into process side were confronted. This paper discusses the successful resolution of such issues.