Patent ID: 8360139
Filing Date: 2013-01-29
Classification: F28F,G21D,Y02E

Abstract:
1. A ceramic heat exchanger comprising: a plurality of ceramic blocks stacked one on top of another, an upper of the ceramic blocks including a head portion and a lower barrel portion below the head portion, the head portion having a larger exterior diameter than the exterior diameter of the lower barrel portion to form a step at an upper end of the larger exterior diameter head portion, and including inlet holes in a peripheral surface of the head portion; a seal interposed between adjacent of the plurality of ceramic blocks; a plurality of parallel lines provided for each of the ceramic blocks, each of the lines being defined by flow channels and the lines being arranged in parallel with each other, through which different fluids A and B flow in opposing direction in respective adjacent two of the plurality of parallel lines; a heat exchange section including the stacked ceramic blocks with the seal being interposed between the adjacent ceramic blocks in a direction in which the lines are formed, a sealing member abutting against the larger exterior diameter head portion, springs pressing the sealing member against the larger exterior diameter head portion, and a helium inlet container including a bellows containing the sealing member and absorbing thermal expansion difference in the axial direction, the helium inlet container is provided for the step formed at the upper end of the larger exterior diameter head portion; a tightening member including first and second end plates and a tie rod extending between the first and second plates, connecting the first and second end plates, the first and second end plates provided on respective of the first and second ceramic blocks, so as to couple both of end portions of the heat exchange section by the tightening member to join and integrate the ceramic blocks; and a thermal expansion absorber positioned on outer surface sides of the end plates facing away from the ceramic blocks of the tightening member so as to absorb thermal expansion of the tie rod in an axial direction thereof.