熱交換器およびそれを用いたヒートポンプ給湯装置

Heat exchanger, and heat pump hot water supply system using it

Abstract

【課題】簡単な構造で伝熱促進することができる熱交換性能のよい熱交換器及びそれを用いたヒートポンプ給湯装置を提供する。 【解決手段】第一流体が流れる第一伝熱管23と、第二流体が流れる第二伝熱管26とからなり、第二伝熱管26を第一伝熱管23内に配置した熱交換器21であって、熱交換器21の第一伝熱管23、および第二伝熱管26の長手方向に垂直の断面において、第一伝熱管23の内壁の各部と第二伝熱管26の外壁との最短距離が、略同一となるように構成した。 【選択図】図3
<P>PROBLEM TO BE SOLVED: To provide a heat exchanger, and a heat pump hot water supply system using it with favorable heat exchange performance, capable of promoting heat transfer by a simple structure. <P>SOLUTION: The heat exchanger 21 is comprised of a first heat transfer tube 23 carrying a first fluid, and a second heat transfer tube 26 carrying a second fluid, and the second heat transfer tube 26 is arranged in the first heat transfer tube 23. It is composed such that, in a cross section vertical to longitudinal directions of the first heat transfer tube 23 and the second heat transfer tube 26 of the heat exchanger 21, the shortest distances between each part of an inner wall of the first heat transfer tube 23 and an outer wall of the second heat transfer tube 26, are substantially the same. <P>COPYRIGHT: (C)2008,JPO&INPIT

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Patent Citations (6)

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    JP-2001201275-AJuly 27, 2001Daikin Ind Ltd, ダイキン工業株式会社二重管式熱交換器
    JP-2005147567-AJune 09, 2005Matsushita Electric Ind Co Ltd, Toyo Radiator Co Ltd, 東洋ラジエーター株式会社, 松下電器産業株式会社Double pipe type heat exchanger
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    JP-2006336988-ADecember 14, 2006Matsushita Electric Ind Co Ltd, 松下電器産業株式会社Heat exchanger apparatus and heat pump water heater using it
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