| 摘要 |
PURPOSE:To positively carry out sealing between two fluids and to secure a sufficient flow passage length with a compact constitution by alternately arranging heat insulating plates and heat transfer plates on one surface of each partition plate to constitute parallel flow passages, constituting inclined parallel passages on another surface thereof by inclining the heat insulating plates and heat transfer plates at the same pitch, and forming communication holes at both end portions of the flow passage on the partition plate. CONSTITUTION:A high-temperature fluid flows in through a supply pipe 28 and a low-temperature fluid through a supply pipe 25. The high-temperature fluid which has flowed into the supply pipe 29 passes through a lowermost stage first passage 16a, flows into a second passage 21a through a communication hole 23, flows into a first passage 16c through a communication hole 22, and flows out through an exhaust pipe 26, successively via a second passage 21c, first passage 16e, second passage 21e and first passage 16g. On the other hand, the low-temperature fluid which has flowed into the supply pipe 25 passes through an uppermost stage second passage 21f, and flows out of an exhaust pipe 27 successively via first passage 16f, second passage 21d, first passage 16d, second passage 21b, and first passage 16b. The high-temperature fluid and the low-temperature fluid flow in a counter flow system through heat transfer plates 15 and 20 and are heat exchanged at a high efficiency.
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