Method and system for maintaining pressure in a nuclear power pl

Details Method and system for maintaining pressure in a nuclear power pl Method and system for maintaining pressure in a nuclear power pl

1994-07-05

1996-02-13

Wasil, Daniel D.

Induced nuclear reactions: processes, systems, and elements

Reactor protection or damage prevention

With pressurizer means

376214, G21C 700

Patent

active

054917310

ABSTRACT:
An automated method for maintaining pressure within a nuclear power plant primary loop during either startup or shutdown, the method comprises the steps of partially filling a portion of a pressurizer vessel, in fluid communication with the primary loop, with a liquid for maintaining pressure in the primary loop; circulating a primary coolant through the primary loop; automatically injecting an inert gas by a first automated device, operatively connected to the pressurizer, into the pressurizer vessel when the pressure in the pressurizer vessel is less than a first predetermined pressure; and automatically venting the gas by a second automated device, operatively connected to the pressurizer, from the pressurizer vessel when the pressure in the pressurizer vessel is greater than a second predetermined pressure.

REFERENCES:
patent: 4470948 (1984-09-01), Aanstad et al.
patent: 4588548 (1986-05-01), Magee et al.
patent: 4692297 (1987-09-01), Schlonski et al.
patent: 4717532 (1988-01-01), Schwab
patent: 4728486 (1988-03-01), Kish
patent: 5126100 (1992-06-01), Bengel et al.

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