Light boiler for use in a nuclear energy installation

Claim 1

AN INSTALLATION FOR THE GENERATION OF STEAM BY RECOVERING THE HEAT FROM A FLUID ISSUING FROM A NUCLEAR REACTOR COMPRISING, IN COMBINATION, A LARGE PLURALITY OF ASSEMBLED IDENTICAL CASINGS IN THE FORM OF ELONGATED COLUMNS HAVING AN AXIAL DIMENSION SUBSTANTIALLY GREATER THAN THE TRANSVERSE DIAMETER, EACH IDENTICAL CASING BEING PROVIDED WITH WATER-FEED MEANS, MEANS PROVIDING A PLURALIT Y OF HEAT-EXCHANGE SURFACES FOR PROVIDING INDIRECT HEAT EXCHANGE BETWEEN SAID WATER AND THE EVOLVED WATER VAPOR AND SAID FLUID, SAID WATER-FEED MEANS COMMUNICATING WITH THE LOWER PORTION OF SAID MEANS PROVIDING SAID HEAT-EXCHANGE SURFACES, AND VAPOR-OUTLET MEANS FOR REMOVING GENERATED WATER VAPOR FROM THE UPPER PORTION OF SAID MEANS PROVIDING SAID HEAT-EXCHANGE SURFACES, EACH OF SAID CASINGS BEING PROVIDED WITH FEED MEANS FOR THE INTRODUCTION OF SAID FLUID FROM THE NUCLEAR REACTOR AND BEING PROVIDED WITH OUTLET MEANS FOR REMOVAL OF SAID FLUID AFTER IT HAS PASSED THROUGH THE CASING IN INDIRECT HEAD EXCHANGE WITH SAID WATER, A COMMON EFFLUENT CONDUIT ADJACENT SAID CASINGS AND MEANS FOR CONDUCTING THE WATER VAPOR ISSUING FROM SAID VAPOR-OUTLET MEANS INTO SAID COMMON CONDUIT, WHEREBY SAID WATER VAPOR IS REMOVED FROM THE INSTALLATION THROUGH SAID CONDUIT, SAID MEANS PROVIDING SAID PLURALITY OF HEAT-EXCHANGE SURFACES COMPRISING A FIRST TUBULAR COIL HAVING THE SAME AXIS AS THE CASING, A LIGHT BOILER COMPRISING A CENTRAL CYLINDRICAL WATER TANK AND RADIALLY-SPACED PARALLEL WATER TUBES DISPOSED AROUND SAID TANK AND IN FLUIDCOMMUNICATING RELATIONSHIP THEREWITH, AND A SECOND TUBULAR COIL HAVING THE SAME AXIS AS THE CASING, SAID FIRST TUBULAR COIL, SAID TANK AND SAID SECOND TUBULAR COIL BEING DIRECTLY INTERCONNECTED FOR THE FLOW OF SAID WATER THERETHROUGH SERIATIM AS IT IS CONVERTED INTO WATER VAPOR, SAID WATER-FEED MEANS BEING CONNECTED TO AN INLET END OF SAID FIRST COIL AND SAID VAPOR-OUTLET MEANS BEING CONNECTED TO AN OUTLET END OF SAID SECOND COIL.