HEAT EXCHANGER

• Main Author: IWASAKI MITSURU
• Format: Patent
• Language: English; Japanese
• Published: 16.05.2016
• Subjects: BLASTING; DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION; HEAT EXCHANGE IN GENERAL; HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEATING; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

PROBLEM TO BE SOLVED: To provide a heat exchanger capable of improving heat exchange efficiency by significantly enhancing heat transfer of eddy current by projection plates of fins.SOLUTION: A forward tilting projection plate 25A and a backward tilting projection plate 25B are disposed in a gas passage through which gas flows to an exhaust passage, the forward tilting plate 25A has a polygonal shape of quadrangle or more, having a base 26A and a pair of right and left sides 27A, 28A in contact with a peripheral face of the exhaust passage, The base 26A of the forward tilting projection plate 25A is disposed at an installation angle β1 oblique to an orthogonal direction CD to an exhaust flowing direction SD, an angle a to the base 26A, of one of the sides 27 positioned at an upstream side in the exhaust flowing direction SD of the forward tilting projection plate 25A is larger than an angle b to the base 26A, of the other side 28A positioned at a downstream side of the exhaust flowing direction SD of the forward tilting projection plate 25A, and the forward tilting projection plate 25A and the backward tilting projection plate 25B have the same size in a front view from the gas flowing direction.SELECTED DRAWING: Figure 20 【課題】フィンの突出板による渦流が熱伝達を大きく促進させ、熱交換率の向上を図ることができる熱交換器を提供する。【解決手段】排気通路に気体が流れる気体通路に前傾突出板２５Ａと後傾突出板２５Ｂとを配置し、前傾突出板２５Ａは、排気通路の周面に接する底辺２６Ａと左右一対の側辺２７Ａ，２８Ａとを有する４角形以上の多角形であり、前傾突出板２５Ａの底辺２６Ａは、排気流れ方向ＳＤの直交方向ＣＤに対し斜め向きとなる設置角度β１で配置され、前傾突出板２５Ａの排気流れ方向ＳＤの上流側に位置する一方の側辺２７Ａの底辺２６Ａに対する角度ａは、前傾突出板２５Ａの排気流れ方向ＳＤの下流側に位置する他方の側辺２８Ａの底辺２６Ａに対する角度ｂよりも大きく、前記前傾突出板２５Ａと後傾突出板２５Ｂは、気体流れ方向からの正面視において、同じ大きさである。【選択図】図２０