Induced nuclear reactions: processes – systems – and elements – Reactor protection or damage prevention – Emergency core coolant systems
Patent
1982-10-12
1985-04-09
Walsh, Donald P.
Induced nuclear reactions: processes, systems, and elements
Reactor protection or damage prevention
Emergency core coolant systems
376283, 376402, G21C 900
Patent
active
045101183
ABSTRACT:
Device for safety injection on a pressurized-water nuclear reactor, including at least two separate injection trains each consisting of at least one set of means (60, 61, 62) for pumping water from a reservoir (58, 59) arranged outside the safety enclosure, and a main injection pipe (64, 65) connected to a distributor drum (70, 70') for the distribution of the water into each of the cold arms of the primary circuit. From each of the main pipes (64, 65) there is tapped off outside the enclosure an auxiliary pipe (84, 85) in which is located a block valve (96, 97). The auxiliary pipes (84, 85) include a branching-off (86, 87, 88, 89) for placing the auxiliary pipe (84, 85) into communication firstly with a cold arm (52, 53, 54, 55) and secondly with a hot arm (56, 56'). The invention is applicable in the event of leakage in the primary circuit of a pressurized-water nuclear reactor.
REFERENCES:
patent: 4078966 (1978-03-01), Verdeau
patent: 4104119 (1978-08-01), Schilling
patent: 4243485 (1981-01-01), Chabin
patent: 4278500 (1981-07-01), Ailloud
Esayan Mariana
Vilain Michel
Framatome & Cie.
Walsh Donald P.
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