HEAT EXCHANGER AND AIR CONDITIONER USING HEAT EXCHANGER

• Main Authors: KIN GENEI, IMAGAWA KENTARO, AGATA YO, TAKAHARA TAKESHI
• Format: Patent
• Language: English; Japanese
• Published: 14.10.2021
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION; HEAT EXCHANGE IN GENERAL; HEAT PUMP SYSTEMS; HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; RANGES; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; VENTILATING; WEAPONS

To further improve drainability of condensed water accumulated on a surface of a heat transfer pipe, in a heat exchanger provided with two or more rows of heat transfer pipes with a flat shape.SOLUTION: A heat exchanger 100 comprises a first heat exchange unit A in which a plurality of flat first heat transfer pipes 1A provided in multiple stages penetrate a first fin 2A, and a second heat exchange unit B in which a plurality of flat second heat transfer pipes 1B provided in multiple stages penetrate a second fin 2B. In the heat exchanger in which the first heat exchange unit A and the second heat exchange unit B are arranged adjacently to each other in a width direction of each heat transfer pipe 1, a distance D between the first heat transfer pipe 1A and the second heat transfer pipe 1B adjacent to each other is made larger than 40% of a width dimension W of the first heat transfer pipe 1A or the second heat transfer pipe 1B, and a distance D2 from the first fin 2A to the second heat transfer pipe 1B is made larger than 20% of a width dimension L2 of the second fin 2B.SELECTED DRAWING: Figure 2 【課題】扁平状をなす伝熱管を２列以上設けた熱交換器において、伝熱管の表面に溜まる凝縮水の排水性を従来よりも向上させる。【解決手段】多段に設けられた扁平状をなす複数本の第１の伝熱管１Ａが第１のフィン２Ａを貫通してなる第１熱交換部Ａと、多段に設けられた扁平状をなす複数本の第２の伝熱管１Ｂが第２のフィン２Ｂを貫通してなる第２熱交換部Ｂとを備え、第１熱交換部Ａ及び第２熱交換部Ｂが、各伝熱管１の幅方向に隣り合って配置されている熱交換器１００において、互いに隣り合う第１の伝熱管１Ａと第２の伝熱管１Ｂとの間隔Ｄが、第１の伝熱管１Ａ又は第２の伝熱管１Ｂの幅寸法Ｗの４０％よりも大きく、第１のフィン２Ａから第２の伝熱管１Ｂまでの間隔Ｄ２が、第２のフィン２Ｂの幅寸法Ｌ２の２０％よりも大きくなるようにした。【選択図】図２