The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 15, 1988
Filed:
Apr. 13, 1982
Jean-Luc Gandrille, Rueil Malmaison, FR;
Nicolas Bonhomme, Pontoise, FR;
Framatome & Cie., Courbevoie, FR;
Abstract
An emergency cooling device for a pressurized water nuclear reactor, through the injection of cooling liquid into the primary circuit of the reactor, comprising at least one double injection circuit equipped with two pumps arranged outside the safety enclosure of the reactor and a set of accumulators containing a certain amount of cooling liquid under pressure arranged inside the enclosure. The accumulators are distributed in a first set at a pressure P1 less than the pressure of the primary circuit of the reactor and a second set at the pressure P2 less than the pressure P1. The injection of cooling liquid through one and other set is caused by the automatic opening of valves when the pressure of the primary circuit drops below P1 and below P2, respectively, in the event of a leakage in this circuit. The invention is useful for pressurized water nuclear reactors having any number of primary loops.