LAMINATION-TYPE HEAT EXCHANGER AND HEAT EXCHANGE UNIT

To exchange heat between a heating-objective fluid and a heating medium with an intermediate medium interposed therebetween, in a lamination-type heat exchanger.SOLUTION: A lamination-type heat exchanger 12 comprises: a low-temperature layer 37 in which a low-temperature flow passage 37a into which a heating-objective fluid is introduced is formed; a first high-temperature layer 38 which is laminated while adjoining the low-temperature layer 37, and has a first high-temperature flow passage 38a into which an intermediate medium is introduced; and a second high-temperature layer 39 which is laminated while adjoining the first high-temperature layer 38, and has a second high-temperature flow passage 39a into which a heating medium is introduced. The intermediate medium is composed of an alcohol having a solidification point whose temperature is -80°C or lower at which a liquid state can be maintained even if heat is exchanged between the heating-objective fluid and the heating medium in the first high-temperature flow passage 38a, or an alcohol aqueous solution.SELECTED DRAWING: Figure 3 【課題】積層型熱交換器において、中間媒体を介在させて加温対象流体と加温媒体との間で熱交換できるようにする。【解決手段】積層型熱交換器１２は、加温対象流体が導入される低温流路３７ａが形成された低温層３７と、低温層３７に隣接して積層され、中間媒体が導入される第１高温流路３８ａを有する第１高温層３８と、第１高温層３８と隣接して積層され、加温媒体が導入される第２高温流路３９ａを有する第２高温層３９とを備え、中間媒体は、第１高温流路３８ａ内において加温対象流体及び加温媒体と熱交換しても液状態を維持する－８０℃以下の凝固点を有するアルコール又はアルコール水溶液からなる。【選択図】図３