KR830003778A - Pressurized Water Reactor - Google Patents

Abstract

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Description

Pressurized Water Reactor

Since this is an open matter, no full text was included.

1 is a schematic of a portion of a primary circuit and a secondary circuit of a pressurized water reactor incorporating a reserve tank according to the present invention. 2 is a longitudinal sectional view of a trepaud type steam generator having a reserve tank according to a second embodiment of the present invention.

Claims (11)

In a reactor having a pressure vessel holding a reactor core and one or more steam generators, a reserve tank is arranged at the same level as the steam generator, in a parallel secondary loop, the reserve tank being permanently connected to the steam generator, A reactor having any volume of secondary fluid in a liquid state that is overcome by the secondary fluid volume in a state. Residuals delivered to the secondary fluid held in the reserve tank via a steam generator are provided by a steam generator with a cooling circuit which is normally isolated and, if necessary, is naturally or forcedly circulated, and has a heat exchanger arranged in the reserve tank below the minimum level of the liquid secondary fluid. A reactor according to claim 1 provided for the purpose of removing the core. A secondary circuit having a valve for supplying a liquid secondary fluid to a steam generator and a valve for supplying a gaseous secondary fluid to a turbine, the closure of which consists of a reserve tank and a steam generator from the remainder of the secondary circuit. The reactor according to claim 1 or 2, wherein these valves are arranged to isolate the system. The reactor according to claim 1, wherein the reserve tank is arranged outside the steam generator. The reactor according to claim 4, wherein the lower part of the reserve tank and the steam generator are connected by a diaphragm restricting the flow from the tank to the generator. The reactor according to claim 4, wherein the lower part of the reserve tank and the steam generator are connected by a pump which increases the flow from the tank to the generator. The reactor according to claim 3 or 4, wherein the reserve tank is connected to a secondary circuit upstream of the steam generator supply valve by a valve controlled tube to adjust the level of the liquid secondary fluid in the reserve tank. The reactor according to claim 7, wherein a steam valve is arranged downstream of the steam generator supply valve and upstream of the level control valve. The steam generator retains a primary fluid at its end and incorporates a vertical cylindrical cylinder that defines two annular chambers connected by an annular tubular groove, with two axial directions in which the secondary fluid traverses the annular chamber. The reactor according to claim 1, wherein the reactor is introduced into the vessel in a liquid phase by a tube and flows out into a gas phase, wherein the reserve tank is disposed in a central space defined by the tube groove. The reactor according to claim 9, wherein the lower end of the reserve tank is connected to the secondary feed fluid in the liquid phase by means of a calibrated hole, and directly connected by the upper end thereof by the secondary fluid to the gas phase held in the vessel. Steam generator for use in a reactor according to claims 9 and 10. ※ Note: The disclosure is based on the initial application.