JPS6213367U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案にかかる一実施例熱交換器の
概略斜視図、第２図は第１図における実施例熱交
換器の外管の管端近傍のひも出し加工部分および
漏洩検知部の構造説明図、第３図および第４図は
この考案の背景となるそれぞれ異なつた従来の２
重管式熱交換器の一部を切り欠いた概略斜視図で
ある。 （符号の説明）、１０……熱交換器、１２……
外筒、１４……内筒体、１５〜１８……筒状体、
２０……凹溝、２５……環状溝。 FIG. 1 is a schematic perspective view of an embodiment of the heat exchanger according to this invention, and FIG. 2 is a structure of the string-drawing part near the tube end of the outer tube and the leak detection part of the embodiment heat exchanger in FIG. 1. The explanatory diagrams, Figures 3 and 4, show two different conventional methods that form the background of this invention.
FIG. 2 is a partially cutaway schematic perspective view of a double-tube heat exchanger. (Explanation of symbols), 10... Heat exchanger, 12...
Outer cylinder, 14... Inner cylinder body, 15-18... Cylindrical body,
20... Concave groove, 25... Annular groove.

Claims (1)

【実用新案登録請求の範囲】 １ 内筒体とその外周を取りまく外筒とによる多
重管構造の熱交換器において、 上記内筒体が互いに平行に隣接接合された２以
上の筒状体により構成されてなることを特徴とす
る熱交換器。 ２ 前記筒状体の外周面にその軸方向に延ばされ
るいくつかの凹溝と、前記外筒の内周面にその周
方向に延ばされ且つ前記いくつかの凹溝に交差す
る環状溝とを具備し、 前記外筒に、前記環状溝に連通する漏洩検知孔
を形成してなる実用新案登録請求の範囲第１項記
載の熱交換器。[Claims for Utility Model Registration] 1. A heat exchanger with a multi-tube structure consisting of an inner cylinder and an outer cylinder surrounding the outer periphery, in which the inner cylinder is composed of two or more cylindrical bodies joined adjacently in parallel to each other. A heat exchanger characterized by: 2. Several grooves extending in the axial direction on the outer peripheral surface of the cylindrical body, and an annular groove extending in the circumferential direction on the inner peripheral surface of the outer cylinder and intersecting the several grooves. The heat exchanger according to claim 1, further comprising: a leak detection hole formed in the outer cylinder and communicating with the annular groove.