F - Mech Eng,Light,Heat,Weapons – 22 – B
Patent
F - Mech Eng,Light,Heat,Weapons
22
B
F22B 37/18 (2006.01) F22B 1/02 (2006.01) F22B 37/22 (2006.01)
Patent
CA 2089528
DESCRIPTIVE ABSTRACT The secondary water supply for a steam generator is provided by a toroidal or semitoroidal collector (38) placed in the bottom of the annular recirculation space (32) of the generator, in a larger diameter part (36) of the outer envelope. The collector (38) has holes (40) ensuring a vertical mean flow of the secondary water into the annular space (32). The cross-section of said holes is chosen in such a way as to trap in the collector the migrating bodies or members from the secondary water circuit and which could damage the steam generator tubes. At least one access orifice makes it possible to extract these migra- ting bodies from the collector during maintenance operations. (fig. 1). B 11228/B 11257 GP
Ayme Henri
Cornu Bernard
Daffos Thierry
Denis Philippe
Pascal Yves
Framatome
Goudreau Gage Dubuc
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