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US 4,395,381 AGranted
Confinement enclosure, notably for a nuclear reactor
AssigneeCommissariat a l'Energie Atomique
InventorDidier Costes
Life of this patent
Estimating the term…
Abstract
A confinement enclosure, notably for a nuclear reactor, of the type consisting of reinforced, possibly prestressed concrete, comprising in the body of the wall a drainage network consisting of tubular channels provided in the concrete, wherein the tubular channels of the drainage network, which may be grouped in sub-groups, are connected to a system of filters located inside the enclosure.
Claims3
A confinement enclosure for a nuclear reactor, comprising:
- a housing in which a nuclear reactor is located, said housing consisting of a single wall formed of reinforced concrete;
- containment means in said single wall for preventing flow of gas through said wall in the event of an accident involving the nuclear reactor, said containment means including a network of channels defined in said wall;
- filter means located within said housing and fluidly connected to said channels to filter any fluid entering said channels from within said housing;
- and
- pressurizing means for connecting said filter means to said containment means, said pressurizing means being fluidly connected to said channels and at all times maintaining a pressure on filtered fluid inside said channels at a level which is higher than the pressure inside said housing and higher than any fluid by-passing the filter means and passing through a crack in said wall;
- whereby any fluid by-passing the filter means is prevented from entering any channel and only fluid passing through said filter means into said channels is permitted to reach the outside of said housing.
3 more elements
A confinement enclosure for a nuclear reactor, comprising:
- a housing in which a nuclear reactor is located, said housing consisting of a single wall formed of reinforced concrete;
- containment means in said single wall for preventing flow of gas through said wall in the event of an accident involving the nuclear reactor, said containment means including a network of channels defined in said wall;
- pressurizing means fluidly connected to said channels and at all times maintaining a pressure on fluid inside said channels at a level which is higher than the pressure inside said housing and higher than any fluid passing through a crack in said wall, said channels being located in a plurality of zones with each zone corresponding to a section of wall height, said channels being grouped according to said zones, and the channels of each zone being filled with water in communication with said pressurizing means constituted by a free level water reservoir located inside the enclosure at a higher level than the corresponding height section;
- whereby any fluid passing through a crack in said wall is prevented from entering any channel and only fluid passing into said channels is permitted to reach the outside of said housing.
1 more element
Dependencies are inferred from the claim text.