Heat exchanger

Claim 1

A HEAT EXCHANGER COMPRISING IN COMBINATION A MONOLITHIC GRAPHITE CORE OF GRAPHITE BLOCKS EACH BLOCK HAVING A SERIES OF PASSAGES EXTENDING PERPENDICULARLY THERETHROUGH FROM ONE FACE TO THE OPPOSITE FACE AND ANOTHER SERIES OF PASSAGES AT RIGHT ANGLES TO THE FIRST EXTENDING PERPENDICULARLY THERETHROUGH FROM AN ADJACENT FACE TO THE ONE OPPOSITE, SAID BLOCKS BEING STACKED IN HORIZONTAL LAYERS TO FORM THE CORE, THE BLOCKS IN EACH LAYER BEING ALIGNED WITH EACH OTHER TO PROVIDE VERTICAL AND HORIZONTAL PASSAGES THROUGH THE CORE, A GRAPHITE HEADER DOME ATTACHED TO THE TOP AND ANOTHER TO THE BOTTOM OF SAID GRAPHITE CORE, ONE OF SAID HEADER DOMES ENCOMPASSING THE UPPER ENDS AND THE OTHER THE LOWER ENDS OF SAID VERTICAL PASSAGES, OUTWARDLY PROJECTING CONDUIT MEANS AFFIXED TO SAID GRAPHITE HEADER DOMES AND COMMUNICATING WITH THE INTERIOR THEREOF, A FIRST INTERNALLY PARTITIONED SIDE HEADER ATTACHED TO ONE SIDE OF SAID MONOLITHIC CORE AND ENCOMPASSING ALL THE OPENINGS OF THE HORIZONTAL PASSAGES EXCLUDING THOSE OF THE BOTTOM-MOST HORIZONTAL LAYER OF BLOCKS ON ONE SIDE OF THE CORE, A SECOND INTERNALLY PARTITIONED SIDE HEADER ATTACHED TO THE OPPOSITE SIDE OF THE CORE AND ENCOMPASSING ALL THE OTHER OPENINGS OF THE HORIZONTAL PASSAGES ON THE OPPOSITE SIDE OF THE CORE, A TANK ENVELOPING THE ASSEMBLY OF THE GRAPHITE CORE, GRAPHITE HEADER DOMES AND INTERNALLY PARTITIONED HEADERS WHEREBY AN ANNULUS IS FORMED BETWEEN SAID ASSEMBLY AND SAID EXTERNAL TANK MEMBER, A PACKING GLAND IN EACH OF THE TOP AND BOTTOM OF SAID EXTERNAL TANK MEMBER, SAID OUTWARDLY PROJECTING CONDUIT MEANS PROJECTING THROUGH SAID PACKING GLANDS IN THE TOP AND BOTTOM OF SAID EXTERNAL TANK, SAID EXHAUST PORT FACING A FLANGED CONDUIT PROJECTING OUTWARD FROM THE SIDE OF SAID EXTERNAL TANK.