Process for filling with water and discharging air from the...

Details Process for filling with water and discharging air from the... Process for filling with water and discharging air from the...

G - Physics

21

C

G21C 1/09 (2006.01) G21C 13/02 (2006.01) G21D 1/02 (2006.01) G21D 3/04 (2006.01)

Patent

CA 2700157

The invention relates to a method for the water filling and air blow-off of a main primary circuit (1) of a nuclear unit after stopping the same, said main primary circuit (1) including a tank (2) located in a pool of a reactor building (4), primary pumps (5), at least one steam generator (6) including a plurality of steam generating tubes (7) located above the level of the tank (2), and a pressuriser (8).

Procédé de remplissage en eau et de vidange en air d'un circuit primaire principal (1) d'une tranche nucléaire suite à son arrêt, ledit circuit primaire principal (1) comprenant une cuve (2) située dans une piscine d'un bâtiment réacteur (4), des pompes primaires (5), au moins un générateur de vapeur (6) comprenant des tubes de générateurs de vapeur (7) situés au-dessus du niveau de la cuve (2), et un pressuriseur (8). Le procédé comprend une étape de mise sous vide du circuit primaire principal qui est effectuée avant le chargement de la cuve en combustible nucléaire. Pour cette étape de mise sous vide, un couvercle est posé provisoirement sur la cuve.

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