JP2011163655A5

JP2011163655A5 -

Info

Publication number: JP2011163655A5
Application number: JP2010026726A
Authority: JP
Filing date: 2010-02-09
Publication date: 2012-08-30

Description

本発明に係る捩り管形熱交換器の製造方法は、内管に捩り加工を施して内管の管壁に複数条の螺旋形状の山と溝を形成する工程と、内管を外管に挿入した後、内管の螺旋山の頂部が外管の内壁に密着するように外管を縮管し、内管と外管との間に螺旋状の冷媒流路を有する二重管を形成する工程とを有するものである。 The manufacturing method of the torsion tube type heat exchanger according to the present invention comprises the steps of twisting the inner tube to form a plurality of spiral ridges and grooves on the tube wall of the inner tube , and using the inner tube as the outer tube After insertion, the outer pipe is constricted so that the crests of the inner ridges of the inner pipe are in close contact with the inner wall of the outer pipe, and a double pipe having a spiral refrigerant flow path is formed between the inner pipe and the outer pipe. And a step of

本発明によれば、内管に捩り加工を施して内管管壁に複数条の螺旋形状の山と溝とを形成し、その内管を外管に挿入した後、内管の螺旋山の頂部が外管の内壁に密着するように外管を縮管するようにしたので、内管となる捩り管の螺旋山の山高さのバラつき、また、捩り過ぎによる性能と品質低下を抑制でき、性能・品質評価の為の手間と装置費用を削減できる効果を有する。 According to the present invention , the inner pipe is twisted to form a plurality of spiral ridges and grooves in the inner pipe wall, and after the inner pipe is inserted into the outer pipe, the spiral mountain of the inner pipe is formed. Since the outer pipe is constricted so that the top is in close contact with the inner wall of the outer pipe, it is possible to suppress the dispersion of the height of the helical mountain of the helical pipe which becomes the inner pipe, and the performance and quality deterioration due to excessive twisting. It has the effect of reducing labor and equipment costs for performance and quality evaluation.

Claims

Twisting the inner pipe to form a plurality of spiral ridges and grooves in the pipe wall of the inner pipe;
After the inner pipe is inserted into the outer pipe, the outer pipe is contracted so that the helical crest of the inner pipe is in close contact with the inner wall of the outer pipe, and a spiral refrigerant is formed between the inner pipe and the outer pipe. method of manufacturing a torsional tubular heat exchanger, characterized in that a step of forming a double tube having a flow path.

The method according to claim 1, further comprising the step of bending the double pipe into a predetermined size .

The method according to claim 1 or 2, wherein the inner pipe is a water pipe, and the outer pipe is a refrigerant pipe .

The torsion pipe heat exchanger manufactured by the manufacturing method as described in any one of Claims 1 thru | or 3 .