Thermal insulating blanket

Details Thermal insulating blanket Thermal insulating blanket

1984-12-05

1987-06-30

Terapane, John F.

Induced nuclear reactions: processes, systems, and elements

Reactor protection or damage prevention

Shield or barrier between radiation or heat source and...

428 75, 428247, 428251, G21C 900, B32B 104

Patent

active

046769463

ABSTRACT:
A thermal insulating blanket used for insulating pipes and equipment in nuclear power plant containment buildings is resistant to tearing if impinged upon by a high force liquid stream (i.e., during a loss of coolant accident--LOCA) and if torn is cut into small pieces which will not clog the protective screen of the emergency cooling system recirculating sump. The blanket consists of a filler layer of thermal insulating fibers, such as glass fiber wool or ceramic fiber wool, a waterproof sheet, and a wire mesh casing surrounding the filler layer and sheet. The wire casing dissipates the force of high force liquid streams which may strike the blanket during a LOCA and in the event that the filler layer is torn, the filler layer is cut into small pieces as it passes through the casing. Preferably, a wire mesh spetum lies within the filler layer to assist in cutting up the torn filler layer.

REFERENCES:
patent: 4169754 (1979-10-01), Perrotta
patent: 4207918 (1980-06-01), Burns et al.
patent: 4345624 (1982-08-01), Rider
patent: 4442585 (1984-04-01), McGeheo, Sr. et al.

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