HEAT EXCHANGER AND COMBUSTION APPARATUS

• Main Authors: KAMIYA NOBUYOSHI, HASEGAWA HIROKI, MORI KENTO
• Format: Patent
• Language: English; Japanese
• Published: 31.08.2017
• Subjects: BLASTING; DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION; FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL; 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; RANGES; VENTILATING; WEAPONS

PROBLEM TO BE SOLVED: To provide a heat exchanger which can improve efficiency for transmitting a calorie of a combustion gas to a heat transfer pipe, and a combustion apparatus having the same.SOLUTION: A heat exchanger comprises a plurality of fins 51 and heat transfer pipes 52. A plurality of the fins 51 have a plurality of through-holes H which are arranged side by side along a first direction D1 on a main surface S. The heat transfer pipes 52 pass through the inside of a plurality of the through-holes of a plurality of the fins 51. A plurality of the through-holes H include even-numbered first stage through-holes H1 and even-numbered second stage through-holes H2. The even-numbered first stage through-holes H1 are arranged at an upstream side in a flow direction of a combustion gas rather than the even-numbered second stage through-holes H2 in a second direction D2. The number of the even-numbered first stage through-holes H1 is larger than the number of the even numbered second stage through-holes H2. Each of the even-numbered second stage through-holes H2 is arranged so as to be displaced from each of the even numbered first stage through-holes H1 in the first direction D1.SELECTED DRAWING: Figure 6 【課題】燃焼ガスの熱量が伝熱管へ伝達される効率を向上することができる熱交換器およびそれを備えた燃焼装置を提供する。【解決手段】熱交換器は複数のフィン５１と伝熱管５２とを備えている。複数のフィン５１は主表面Ｓにおいて第１の方向Ｄ１に沿って並んで配置された複数の貫通孔Ｈを有している。伝熱管５２は、複数のフィン５１の各々の複数の貫通孔内を通る。複数の貫通孔Ｈは、偶数の第１段目貫通孔Ｈ１と偶数の第２段目貫通孔Ｈ２とを含んでいる。偶数の第１段目貫通孔Ｈ１は第２の方向Ｄ２において偶数の第２段目貫通孔Ｈ２よりも燃焼ガスの流れ方向における上流側に配置されている。偶数の第１段目貫通孔Ｈ１の数は偶数の第２段目貫通孔Ｈ２の数よりも多い。偶数の第２段目貫通孔Ｈ２の各々は偶数の第１段目貫通孔Ｈ１の各々から第１の方向Ｄ１にずれて配置されている。【選択図】図６