| 摘要 |
PURPOSE:To improve the heat exchange efficiency of the titled heat exchanger by a method wherein a plurality of parallel pipes are wound helically around a columnar member or its outer shell through a plurality of pairs of support members fixed to the columnar member or its outer shell and the entire structure is covered with aluminum or its alloy. CONSTITUTION:The paris of support members 3 are fixed to a plurality of points on the side surface of the columnar member 1 such that each of the pairs of the support members 3 is fixed to one of the points on the side surface of the columnar member 1 so as to extend parallel to each other in spaced apart relationship from the side surface of the columnar member 1 and the helical pipes 2 arranged parallel to one another are held between each of the pairs of support members 3. Further, the entire structure is covered with aluminum or its alloy 12 so that a high temperature gas flows helically through the pipes 2 to thereby heat the pipes 2. As a consequence, the sectional area of contact of each of the pipes 2 with the high temperature gas is enlarged and the heat transfer efficiency of the heat exchanger is sharply improved. |
