Induced nuclear reactions: processes – systems – and elements – Reactor protection or damage prevention – Pressure suppression and relief
Patent
1989-03-20
1992-04-21
Wasil, Daniel D.
Induced nuclear reactions: processes, systems, and elements
Reactor protection or damage prevention
Pressure suppression and relief
376299, G21C 1518
Patent
active
051065711
ABSTRACT:
A gravity driven cooling system pool is disposed at an elevated location with respect to the locations of nuclear fuel rods in a pressure vessel. In the event of a loss of coolant in the pressure vessel, steam pressure is initially reduced by venting the steam into the containment or a closed suppression pool containing a quantity of water under a large air space. The suppression pool condenses sufficient steam to lower the steam pressure in the pressure vessel so that water can flow by gravity from gravity driven cooling system pool to flood the fuel rods in the pressure vessel. An isolation condenser is submerged in a large supply of water elevated with respect to pressure vessel. Steam is admitted to the isolation condenser, or heat exchanger, where it is cooled by boiling the water surrounding it. This steam is vented to the atmosphere. A depressurization valve vents steam fro the pressure vessel into the containment to aid pressure reduction, and thus to aid the gravity flow of coolant. Later, as the pressure in the pressure vessel is reduced by heat removal in the isolation condenser, steam in the containment is permitted to flow from the containment, and into the depressurization valve and thence to the isolation condenser, or heat exchanger.
REFERENCES:
patent: 3454466 (1969-07-01), Pitt et al.
patent: 3929567 (1975-12-01), Schabert et al.
patent: 4050983 (1977-09-01), Kleimola
patent: 4687626 (1987-08-01), Tong
patent: 4753771 (1988-06-01), Conway et al.
Nuclear News, Jun. 1986, p. 98.
Barbanti Giancarlo
Gou Perng-Fei
Hsu Li C.
Rao Atambir S.
Wade Gentry E.
LandOfFree
Containment heat removal system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Containment heat removal system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Containment heat removal system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1584435