JPS584065Y2 - Netsukou Kanki - Google Patents

Description

【考案の詳細な説明】 本考案は、風呂や湯沸器などに使用する熱交換器に関す
るものである。[Detailed Description of the Invention] The present invention relates to a heat exchanger used in baths, water heaters, etc.

風呂や湯沸器などに使用する従来周知の熱交換器は、銅
製またはアルミニウム製の多数の吸熱フィンを使用し、
これを溶着により水套部に取付ける構造であるため、溶
接部分が多くなってその作業に多大な手間を要し、これ
が製品を大量生産する際の一つの障害となり、コスト高
になるなどの問題がある。Conventionally known heat exchangers used in baths, water heaters, etc. use a large number of heat-absorbing fins made of copper or aluminum.
Since this is attached to the water canal by welding, there are many welded parts and the work requires a lot of effort.This is an obstacle when mass producing the product, leading to problems such as high costs. There is.

本考案は、上記の従来技術の欠点に鑑み、熱交換器の水
套部を耐熱および不銹性を有する金属板のプレス成型品
で作ると共に、そのプレス成型と同時に吸熱フィンを兼
ねた膨出部を成型し、かつ該膨出部の突端部に定間隔を
もって小突起部を同時に成型し、さらに該小突起部の先
端に定間隔をもって複数の上下交互に山形切起部を有す
るプレートフィンを咬合するように溶接して、前記膨出
部と相対向するプレートフィンの山形切起部とが互い違
いになるように構成し、これにより溶接部分を極力少な
くして量産性の向上を計り、コスト低減並びに性能の向
上を図るものである。In view of the above-mentioned shortcomings of the conventional technology, the present invention has been developed by making the water sleeve of the heat exchanger from a heat-resistant and non-rusting metal plate press-molded product, and at the same time forming a bulge that also serves as a heat-absorbing fin. and at the same time mold small protrusions at regular intervals on the protruding end of the bulged part, and further plate fins having a plurality of chevron-shaped cut parts alternately arranged above and below at regular intervals at the tips of the small protrusions. The bulges are welded so that they interlock, and the bulges and the chevron-shaped cut edges of the opposing plate fins are alternately arranged. This reduces the number of welded parts as much as possible, improves mass production, and reduces costs. The aim is to reduce this and improve performance.

以下添付図に従って本考案の一実施例を詳細に説明する
。An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

第１図は本考案により構成した熱交換器の平面図、第２
図はその正面図である。Fig. 1 is a plan view of a heat exchanger constructed according to the present invention;
The figure is its front view.

また、第３図は第１図のＡ−Ａ線縦断面拡大図であり、
第４図は部分斜視図である。In addition, FIG. 3 is an enlarged longitudinal cross-sectional view taken along line A-A in FIG.
FIG. 4 is a partial perspective view.

図面において、１，２は同形同大の対設した水套で、そ
れら一対の水套１，２の上方左側端部および上方右側端
部をそれぞれ連通管３ａにて吸熱水套６に連通し、また
連通管３ｂにて水套１，２の下方左側端部を連通して両
水套１，２および吸熱水套６内を水が循環流通する構造
にしである。In the drawing, reference numerals 1 and 2 are opposed water canals of the same shape and size, and the upper left end and upper right end of the pair of water canals 1 and 2 are connected to the endothermic water cannula 6 through communication pipes 3a, respectively. In addition, the lower left end portions of the water canals 1 and 2 are communicated with each other through a communication pipe 3b, so that water circulates within both the water canals 1 and 2 and the endothermic water cannula 6.

この水套１．２の相対向する上方部には、水套の横方向
に沿って一様の膨出部４を形成して下方部よりも断面積
を拡大し、その膨出部４を下方からバーナにより加熱す
るようにしである。A uniform bulging part 4 is formed along the lateral direction of the water mantle in the opposing upper part of the water mantle 1.2 to have a larger cross-sectional area than the lower part. It is heated by a burner from below.

さらにこの膨出部４の平坦部には水套１．２の横方向に
沿って、定間隔をもって小突起部４ａおよび谷部４ｂを
形成しである。Furthermore, small protrusions 4a and troughs 4b are formed at regular intervals along the lateral direction of the water cannula 1.2 on the flat part of the bulge 4.

この小突起部４ａおよび谷部４ｂの形成位置は各々の水
套では対設状態で互い違いになるように形成しである。The small protrusions 4a and the valleys 4b are formed in alternate positions in each water cannula.

５は膨出部とほぼ等しい大きさのプレートフィンであっ
て、該プレートフィン５は各々の水套への熱伝導を効果
的に行なわせるために、前記小突起部４ａの狭小な平坦
部のところで複数個所にて膨出部４に溶着しである。Reference numeral 5 denotes a plate fin having a size approximately equal to that of the bulging portion, and the plate fin 5 is designed to cover the narrow flat portion of the small protrusion 4a in order to effectively conduct heat to each water canal. By the way, it is welded to the bulged portion 4 at multiple locations.

このプレーＩ・フィン５は小突起部４ａおよび谷部４ｂ
と同一ピッチで上下方向にて交互に分離され、かつプレ
ート面に対して凹凸状をなす多数の山形切起部５ ａ
、５ ｂを有し、切起部５ｂは夫々小間隔を保って谷部
４ｂに対設しである。This play I fin 5 has small projections 4a and valleys 4b.
A large number of chevron-shaped cut-out portions 5 a that are alternately separated in the vertical direction at the same pitch and that form an uneven shape on the plate surface.
, 5b, and the cut-and-raised portions 5b are arranged opposite to the valley portions 4b with a small interval between them.

なお、本考案の水套１，２および吸熱水套６は、耐熱お
よび不銹性を有する金属板をプレス成型したものであり
、そのプレス加工と同時に水套１，２の小突起部４ａ、
谷部４ｂおよび吸熱水＠６の小突起部６ａを形成するも
のである。The water canopies 1 and 2 and the endothermic water canopy 6 of the present invention are press-molded from heat-resistant and rust-free metal plates.
This forms the valley portion 4b and the small protrusion portion 6a of the endothermic water @6.

図中、７および８は水套と浴槽（図示せず）との連結口
であり、この連結口は前記両水套の一方の水套の外側面
の左側下方部および右側上方部（あるいはその逆）に設
けである。In the figure, 7 and 8 are connection ports between the water canopy and the bathtub (not shown), and these connection ports are located at the lower left part and the upper right part (or at the upper right part) of the outer surface of one of the water canals. (opposite).

本考案は、上述の如き構成よりなるから、両水套１およ
び２で囲まれている部分を燃焼室とし、それをバーナ（
図示せず）により下方から加熱すると、前記水套１，２
および吸熱水套６が加熱され、その際に、それらの膨出
部に形成した小突起４ａ、６ａと、そこに溶着されてい
る複数の山形切起部５ａ、５ｂを有するプレートフィン
５から各々の水套へ十分効果的に熱伝導が行なわれる。Since the present invention has the above-mentioned configuration, the part surrounded by both water mantles 1 and 2 is used as a combustion chamber, and it is used as a burner (
(not shown) from below, the water canisters 1 and 2
and the endothermic water mantle 6 are heated, and at that time, each of the plate fins 5 having small protrusions 4a, 6a formed on the bulges thereof and a plurality of chevron-shaped cut portions 5a, 5b welded thereto. Heat conduction is sufficiently effective to the water canopy.

ちなみに、通常この種の熱交換器を使用する風呂釜は、
ＪＩＳ Ｓ ２１１１液化石油ガス用ふろがまにおける
６の性能の項目の表４において、熱効率が通水において
７０％以上と規定されている。By the way, bathtubs that usually use this type of heat exchanger,
In Table 4 of JIS S 2111 6 performance items for bathtubs for liquefied petroleum gas, the thermal efficiency is specified as 70% or more in water passage.

そこで、本考案の熱交換器を例えば銅素材で製作し、風
呂釜に組込んでインプットを１００００Ｋｃａｌ／ｈｒ
で燃焼させて通水による熱効率を測定すると、前述のＪ
ＩＳ Ｓ ２１１１の規格を十分満足させる約７５％で
あった。Therefore, the heat exchanger of the present invention was manufactured from copper material, for example, and was incorporated into a bathtub to provide an input of 10,000 Kcal/hr.
If you measure the thermal efficiency by passing water through combustion, the above-mentioned J
It was about 75%, which fully satisfies the IS S 2111 standard.

また、前述と全く同一条件でプレートフィン５がなく、
膨出部４だけの熱交換器を風呂釜に組込んで通水による
熱効率を測定すると、前述のＪＩＳＳ ２１１１の規格
を満足しない約３８％であった。Also, under exactly the same conditions as above, there is no plate fin 5,
When a heat exchanger with only the bulging portion 4 was assembled into a bathtub and the thermal efficiency due to water passage was measured, it was approximately 38%, which did not satisfy the above-mentioned JISS 2111 standard.

この結果、膨出部４にプレートフィン５を溶着させるこ
とによって吸熱作用が効果的に増大されて、従来の吸熱
フィンと同様の作用効果が発揮できる。As a result, by welding the plate fins 5 to the bulging portions 4, the heat absorption effect is effectively increased, and the same effect as that of the conventional heat absorption fins can be exhibited.

また、本考案は、板金プレス加工によって、水套１．２
と吸熱水套６の側面を膨出させて形成した小突起部に各
々プレートフィン５を溶着させるので、従来のように多
数の吸熱フィンをパイプに溶着して取付ける必要がなく
なるばかりか、溶接接合部の密着性の心配から解放され
、溶接個所は大巾に減少して量産性に適し、かつコスト
ダウンを図ることができる。In addition, this invention has a water mantle 1.2 by sheet metal press processing.
Since the plate fins 5 are each welded to the small protrusions formed by bulging the sides of the endothermic water mantle 6, it is not necessary to weld and attach a large number of endothermic fins to the pipe as in the past, and it is possible to weld the joints. There is no need to worry about the adhesion of parts, and the number of welding parts is greatly reduced, making it suitable for mass production and reducing costs.

なお、本実施例では、水套１および２の間に設けた吸熱
水＠６を１個のみ配設した状態を説明したが、これは使
用器具に合わせて複数個設けることができるものであっ
て、そのように、吸熱水套の個数および燃焼室の大きさ
を任意に変更することによって所要の熱効率を得ること
ができる。In this embodiment, only one endothermic water @ 6 was provided between the water canisters 1 and 2, but it is possible to provide a plurality of them depending on the equipment used. Thus, by arbitrarily changing the number of endothermic water canals and the size of the combustion chamber, the desired thermal efficiency can be obtained.

また、材質を耐熱、耐腐蝕性に富んだ素材の選択が可能
となり、これは熱に対する残留応力等を除去するため、
熱処理も完成品のままで施すことができる。In addition, it is possible to select materials that are highly heat resistant and corrosion resistant, which eliminates residual stress due to heat.
Heat treatment can also be applied to the finished product.

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

添付図は本考案による熱交換器の一実施例を示すもので
、第１図は平面図、第２図は正面図である。 第３図は第１図のＡ−Ａ線縦断面拡大図であり、第４図
は部分斜視図である。 １．２．６・・・・・・水套、３ ａ 、３ ｂ・・・
・・・連通管、４・・・・・・膨出部、４ａ、６ａ・・
・・・・小突起部、４ｂ・・・・・・谷部、５・・・・
・・プレートフィン、５ ａ 、５ ｂ・・・・・・切
起部、７，８・・・・・・連結口。The attached drawings show an embodiment of the heat exchanger according to the present invention, with FIG. 1 being a plan view and FIG. 2 being a front view. 3 is an enlarged longitudinal sectional view taken along the line A--A in FIG. 1, and FIG. 4 is a partial perspective view. 1.2.6... Water cloak, 3 a, 3 b...
...Communication pipe, 4...Bulging part, 4a, 6a...
...Small protrusion, 4b...Trough, 5...
...Plate fin, 5a, 5b...cut and raised portion, 7, 8...connection port.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 両端を除き上部を横方向に沿って一様な膨出部を有する
一対の水套を相対向して配設し、前記膨出部と略等しい
高さと前記水套と略等しい長さを有し両側面を膨出させ
た１個乃至複数個の吸熱水套を前記一対の水套の間に並
設し、上部両端近くで連結管をもって前記吸熱水套を前
記一対の水套に連通させてその内部に燃焼室を形成し、
前記水套と吸熱水套の対向する膨出部には横方向に沿っ
て定間隔をもって半ピツチずらして複数の小突起部が膨
出形成され、これによって両者の間に一様な幅の蛇行状
の排気通路が形成されており、かつ前記小突起部と同一
の定間隔で複数個の上下交互に山形切起部を有するプレ
ートフィンを前記切起部が前記小突起部の間に列設する
ように前記小突起部の狭小な平坦部のところに溶着し、
対向する前記プレートフィンの前記切起部の山形が互い
違いになるように構成したことを特徴とする熱交換器。A pair of water mantles having a uniform bulge along the lateral direction at the upper part except for both ends are disposed facing each other, and have a height substantially equal to the bulge and a length substantially equal to the water mantle. One or more endothermic water canals having both sides bulged are arranged in parallel between the pair of water canals, and the endothermic water cannula is communicated with the pair of water canals by connecting pipes near both ends of the upper part. to form a combustion chamber inside it,
A plurality of small protrusions are formed on the opposing bulges of the water mantle and the endothermic water mantle at regular intervals and shifted by half a pitch along the lateral direction, thereby creating a meandering part with a uniform width between the water mantle and the endothermic water mantle. A plate fin having a plurality of chevron-shaped cut-out portions arranged vertically and alternately at the same regular intervals as the small protrusion portions is arranged in a row between the cut-out portions and the small protrusion portions. Welded to the narrow flat part of the small protrusion so as to
A heat exchanger characterized in that the ridges of the cut and raised portions of the opposing plate fins are arranged alternately.