| 摘要 |
<p>[Problem] To provide a heat exchanger which comprises a spiral partition wall and a spiral pipe and which can be assembled with improved work efficiency. [Solution] A heat exchanger has a spiral passage which is formed between adjacent turns of a spiral partition wall (3) provided within a container, a spiral pipe (4) having turns is disposed in the spiral passage with the turns arranged in vertical tiers, and a first fluid which flows through the spiral passage outside the spiral pipe and a second fluid which flows through the inside of the spiral pipe are caused to exchange heat. A groove (21) is formed in the partition wall, the width (W) of the portion of the partition wall which corresponds to the groove is set to be less than the distance (R) between adjacent turns of the spiral pipe, the spiral pipe is provided corresponding to the groove in the partition wall, and the spiral pipe is made to be in close contact with the groove by rotating the partition wall and/or the spiral pipe about the center of the spiral.</p> |
