| 摘要 |
PURPOSE:To reduce gas leak and achieve high heat exchanging efficiency by a method wherein a plurality of heat exchanging bodies made of ceramics are arranged in a casing under interposing non-calcined ceramics string-type seal members between mutual connecting surfaces. CONSTITUTION:Alternate end faces of penetrating holes of honeycomb structural body of ceramics, which is formed by extrusion forming method or the like and provided with polygonal sections, are sealed by the ceramics of same quality and the sealed penetrating holes are bored from a side direction orthogonal to the axial lines of the penetrating holes to form wide penetrating holes. The wide penetrating holes are utilized for heating fluid paths 3 while the non-sealed penetrating holes are utilized for the paths 4 of fluid to be heated which are orthogonal to the wide penetrating holes. In this case, a plurality of heat exchanging bodies 2 of ceramics, in which the heating fluid flow paths 3 and the paths 4 of fluid to be heated are formed, are arranged in the casing 1 under interposing the string seal member 6 consisting of non-calcined ceramics between mutual connecting surfaces 5, 5 whereby the heat exchanger may be used in a high temperature of 800 deg.C or more, gas leak may be reduced remarkably and the heat exchanging efficiency may be improved. |
