| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To make it difficult to generate corrosion on a heat transmission plate when a refractory protecting a steel heat transmission plate is cracked, and prevent corrosion from spreading, and early discover abnormality of a refractory such as missing even when corrosion is generated on the heat transmission plate. <P>SOLUTION: The steel transmission plate 4 serving as a heat transmission face is arranged in a casing 3, so as to form a high temperature gas passage 5 flowing high temperature gas G including a corrosion-proof component and dusts, and an air passage 6 flowing lower temperature high pressure air A than the high temperature gas G, respectively. In this heat exchanger 1, a refractory 7 with high heat conductivity is lined on a face in contact with the high temperature gas G of the heat transmission plate 4. A plurality of openings 4a are formed on the heat transmission plate 4, so as to apply pressure of the air A flowing in the air passage 6 from the opening 4a to the refractory 7 side. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
