JPS63142580U

JPS63142580U -

Info

Publication number: JPS63142580U
Application number: JP3291687U
Authority: JP
Priority date: 1987-03-06
Filing date: 1987-03-06
Publication date: 1988-09-20

Description

[Brief explanation of drawings]

第１図は本考案の一実施例に係わる熱交換器の
構造を従来の熱交換器との関連において示した要
部断面図、第２図は第１図の―線に沿う拡大
断面図、第３図は従来の熱交換器における排水通
路の構成を示した内外二重管の管端図である。１……薄板フイン、１ａ……同薄板フインのフ
イン穴、ｇ……空気流通間隙（フイン取付間隙）
、２……フイン付き外管、３，４……外管両端の
取付板、５……通水内管、５ａ……内管外面溝、
Ｗ……冷却水、Ｗ′……漏洩水、６……排水通路
、７……漏洩検知手段、８，９……内管両端の取
付板。 FIG. 1 is a sectional view of essential parts showing the structure of a heat exchanger according to an embodiment of the present invention in relation to a conventional heat exchanger, and FIG. 2 is an enlarged sectional view taken along the line - in FIG. 1. FIG. 3 is an end view of an inner and outer double pipe showing the structure of a drainage passage in a conventional heat exchanger. 1...Thin plate fin, 1a...Fin hole of the same thin plate fin, g...Air circulation gap (fin installation gap)
, 2...Outer tube with fins, 3, 4...Mounting plates at both ends of the outer tube, 5...Inner pipe for water passage, 5a...Outer surface groove of the inner tube,
W...Cooling water, W'...Leak water, 6...Drain passage, 7...Leakage detection means, 8, 9...Mounting plates at both ends of the inner pipe.

Claims

[Scope of utility model registration request]

A plurality of outer tubes 2 with fins are provided with a plurality of thin plate fins 1 inserted and held at the outer periphery with air circulation gaps g, and are expanded when the fins are inserted in order to improve the connection with the fin holes 1a. , an outer tube mounting plate 3 into which both ends of each finned outer tube 2 are inserted and fixed.
, 4, a water passing inner pipe 5 for passing the cooling water W which is inserted into the outer pipe 2, expanded and fixed by crimping, and secured between the water passing inner pipe 5 and the finned outer pipe 2. A drainage passage 6 is provided to allow leakage water W' of the cooling water W to flow out from the pipe end of the outer pipe 2 when the inner pipe 5 is damaged by corrosion, and the leakage water W' flowing out from the drainage passage 6 is detected. In the heat exchanger for air cooling, the drainage passage 6 is provided with a plurality of grooves on the outer surface of the inner pipe recessed in the outer circumference of the inner pipe 5 in the length direction. A heat exchanger for air cooling, characterized in that it is formed of 5a.