JPS59170642A

JPS59170642A - Heat exchanger

Info

Publication number: JPS59170642A
Application number: JP4415583A
Authority: JP
Inventors: Masaaki Ishiyama; 石山　正昭; Mitsuo Nishikiori; 満雄錦織; Yoshihiro Kodama; 児玉　良弘
Original assignee: Hitachi Ltd
Current assignee: Hitachi Ltd
Priority date: 1983-03-18
Filing date: 1983-03-18
Publication date: 1984-09-26

Abstract

PURPOSE:To secure a gap for a plurality of spacers and to prevent the thermal deformation of the spacers by a method wherein the upper and the lower ends of the vertical spacers are connected to one another, respectively, and the spacers are arranged vertically within a combustion gas passage leaving the gap from the wall of the passage in such a manner that the spacers are allowed to expand thermally in the vertical direction. CONSTITUTION:In the heat exchanger in which a combustion gas passage is provided vertically and a coil-like heat medium passage 1 is arranged within the combustion gas passage leaving the gap 10 from the wall 2 of the latter, the spacers 15 each having a length equal to the vertical length of the gap 10 and whose upper and lower ends are connected to one another, respectively, are used to secure the gap 10. In this case, the spacers 15 are allowed to expand thermally in the vertical direction. Thus it is possible to secure the gap 10 and to obtain a spacer fixing structure with which no deformation of the spacers takes place.

Description

[Detailed description of the invention]

〔発明の利用分野〕本発明は、パイプをコイル状ＩＣ巻いて設けた熱媒体の
通路を燃焼ガス連路に配置した瞬間式の熱交換器に関す
るものである。特ｆでに給湯機け４の熱交換器に関する
。〔発明の背景〕従来の瞬間式給湯機を第１図ｆ７ｊより検問する。１は銅パイプｌコイル状に巻Ｖ）た通水路であり、垂直
方向に配置してＶする。２け耐熱性の遮熱板で、逆水路
】との間に隙間を設はて通水路を沖りてＬ”る。通水路
］の内部の上部には隙間を設けてパッフル：（を配置し
ている。パワフル３は天板４から吊下げてＶＳ　’る。５けパー手、６け燃焼室、７・け排冒−冒気口で、・や
る、。　　　い　　　　　　　　　、、、、、：、□・
、　、層□かかるＷｒ成Ｆおいて、バーナ５の火炎８け
燃焼室６′で熱ぐ拗り、た後、パーフル］１水路１七の
　　１すき間９および通水路１と遮熱＆１２とのす☆間
１（）′□￥を通って熱交換しながら排出される。また
、給水は門部１１か、ら、入り、加熱されて潤度上昇し
ながら、出湯出口１２より出てゆく。　　　、、、、、
。通水路、、１が変形して遮熱板２と接すると、通水路１
の伝熱面積の低下を生じた・１す、また、凝縮水が発生
する場合は凝縮水が高温ρ遮熱外に接ｉ　Ｌ　１．’遮
熱板め破損を招く等での問題を、生ずる。そこで隙間】
０、ｉ□をｍ　＜ｍ　子るためか長東−サを設けること
が必要である。　　　　　：〔発明の目的１””　”’　　”′　　・・　　　　１
′本発明は、隙藺ア確保がで門Ｊしかも変形の生じなＶ
）スペーサのワ付構造を提供することを特徴とする特に
不発晶は遮□熱板□との隙間を構筬す□るスペーサに関
するものである。〔発明の概健〕１□　′本発明は垂直方向ｌＦ、酬置装れるスペーサを
榎数：、、個股ｐ、、、複数のスペー斗の上端と下端と
を玲れぞね接続し、これを熱膨張で鉛直方向に移■ｌｊ
で奇る□　　ようｒＣ隙間丙に□・９ｊまたものである
。□〔発明の実施例〕以下、本発明の一実施例を第２図〜笛３図により説明す
る。１５け１４間１０に配置するスペーサであり、そ、
の長さ輪線熱板２の高郷、より、若干小さＫＦ。その１１１１面の中央部は突出してＶする。その突出や
さ１１１は１済１川１（１から伸接枚１６．１７の１早さを引Ｖ
）だ本のよりも小さＶ）。１６、］７け複数のスペ、−
サ】５の一端（Ｃ転置され、スポット溶接で固定してい
る。沖、接板１６．１７け手で容易に円形にできる。上
うに薄板で軟□　い材ｉモ□設□け□てじする。′］た
円形にした場合、連接板ｊ：６−】７所縁作１７　”を
姓ｊ立置するようにしてＶ）る。逆接板１６、】７は遮
熱板２のＩｆｌ′周長さよりも短い。ここではスペー＋
１５の間−：ｉぼ舛しυ・長き分ｉど短・　□　□、　
□′、□、　１　・　、、□　□〈設けている。連接板】６．１７で固定式れたスペーサ１５は逆接板゛
ｊ０】６、］′７が外側ｔｉｋるようｒ轟Ｖ１そ隙間１０内
に配牌さ尼、て嬉り、スペーサ１５の下端示底板１８に
接触してＶ・る。スペー−！）１５、連ｓｉ　７　ｉ６
−．１．１箱遮執板２擲−−固定されそい’ｌ　ｖ）。 −−□−□力′：かＢ’＊’ｄｃよｉげ、スミーサ］５
が獣るので隙Ｍ　］　ｌ′：　所確保される本のである
。身べ］ニサ１５の配一手段メしてｉスペー４１５をｊ熱
板２　／Ｃスポット溶接で固定することが考えられる。スペーサ】５の傾斜を防止するためスペーサの上下両端
をスポット溶接する。こ＝に４　、”′ｍｍ板益ロー淵
で蔦るがコニ哀ペニサ１５け通水路１への接ｆｆｉ！Ｉ
Ｉ　’Ｉｃ　、Ｊ：　”４でイ戊温−＋ＱＢ、１者め一
一一１番生少諷。 −のため、タボ５溶接めにずれや、−一形を稙する。　
　　　　　　　　　　　　　　″　□−□し力司−１本
発明のスペーサ１Ｄは遮熱板２　ＩＣ対して固定一孔子
おらン、底ｉｊ前ε轍随−ｉぞい名のみ卒あるので、上
記め問題−発生□口外Ｊも払十がるコ□ｉＬ、□−１＋
連ｉ編ｊ藏１７で□接続しそＶミ名渥ぞ、Ａベニ−１１
５の傾斜等の問題もｆｘｍｔめである。遮臓板２二遡呆路】′、スペ□”＋１’５を−お茄＜ｍ
・　４　・立てる順序としては色々老えもねるが、その１つ七して
、円形ｌｒ構Ｗした遮熱板内に逆水路１メ文ペーサ１５
を挿入する方法がある。本発明では諦水路１に、スペー
キ１５を巻Ｖ１て遮熱板２の上伸１から挿入’してＶ）
る。□ｆｉ１約６：□　ｔ７に可撓性であるので、手ヤ
容島に巻くととができるものである。オた□Ｊ連接ＰＩ
廊、１７の円径を遮熱板２のそれよりも小さく＾□〈ど
、とがで：きＪ容易に挿入できる。′　　□博た、スペ
ニ嵌１５の挿入（ｆＣ当って、上側の連接板ｊ６を伐ペ
ーサ１５の内（Ｉｌｌ　ｌにいるように設は・れば、□
連接機１６め部４め□挿入時ｅ連接板１６が遮熱板２の
端面にひっかかることがｋく、容易に挿入できる・もめ
で：ある。、１′、、、、１．、、　ｊ　、、　　　　
　□　　　　　　　・　″　　□□：上舶雪施イダ＋ｉ
６遮熱板２佃１のスペーサであったがバッフル″３側め
長べ」すに本発明を適用することもできるものである。この場合は伐ペー＋１６め蒸章キ防止するた１めのひっ
赤は部をパップ・ル３に設Ｗて狼むと七か必要上ある。　　　　□・ｔ′た、挿接に１６．１７七スペー４Ｊ−
ｊ５を一枚扱からケシ゛ス：＋−泳[Field of Application of the Invention] The present invention relates to an instantaneous heat exchanger in which a passage for a heat medium formed by winding a pipe in a coiled IC is disposed in a combustion gas passage. In particular, the present invention relates to a heat exchanger for a water heater 4. [Background of the Invention] A conventional instantaneous water heater is inspected from Fig. 1 f7j. 1 is a water passage made of copper pipe wound into a coil shape and arranged vertically. With two heat-resistant heat shield plates, a gap is provided between the reverse waterway and the water passageway. The Powerful 3 is suspended from the top plate 4. It is done with the 5th part hand, the 6th place combustion chamber, and the 7th place exhaust vent. ,□・
, , layer □ In such a Wr formation, after the flame of burner 5 heats up in the 8 combustion chamber 6', purfle] 1 water passage 17 1 gap 9 and between water passage 1 and heat shield & 12 It passes through the space 1()'□￥ and is discharged while exchanging heat. Also, the water enters through the gate 11 and exits through the hot water outlet 12 while being heated and increasing in moisture content. ,,,,,,
. When the passageway 1 deforms and comes into contact with the heat shield plate 2, the passageway 1
A decrease in the heat transfer area occurred.In addition, if condensed water is generated, the condensed water comes into contact with the outside of the high temperature ρ heat shield. 'This may cause problems such as damage to the heat shield plate. There is a gap]
0, i□ with m < m, it is necessary to provide Choto-sa. : [Object of the invention 1”” ”’ ”′... 1
'The present invention is designed to ensure clearance and prevent deformation.
) Particularly, a non-sparking crystal characterized by providing a spacer with a wafer structure relates to a spacer that forms a gap between the spacer and the heat shielding plate. [Overview of the invention] 1 □ 'The present invention uses spacers that can be replaced in the vertical direction 1F, and connects the upper and lower ends of a plurality of spacers in a straight line. is moved in the vertical direction due to thermal expansion ■lj
It's strange □ It's also □・9j in the rC gap C. □ [Embodiment of the Invention] An embodiment of the present invention will be described below with reference to FIGS. 2 to 3. It is a spacer placed between 15 pieces and 14 pieces, and 10 pieces.
The length of the ring wire hot plate 2 is slightly smaller than that of Takago. The center portion of the 1111th surface is protruding into a V shape. The protruding speed of 111 is 1, 1 river, 1 (1 minus the speed of 16.17 extension pieces)
) is smaller than the book V). 16,] 7-digit multiple spaces, -
One end of 5 (C has been transposed and fixed by spot welding. It can be easily made into a circular shape with the contact plate. If the connecting plate j:6-]7 is made into a circular shape, the connecting plate 16 and ]7 will be placed vertically. shorter than the circumference.Here, space +
Between 15 and 15 -: i obomashi υ・long minute i do short・□ □,
□', □, 1 ・ ,, □ □〈Provided. The spacer 15 fixed in 6.17 is arranged in the gap 10 so that the reverse contact plate ゛j0 ]6, ]'7 is on the outside. Contact the bottom plate 18 and turn V. Space! ) 15, Ren si 7 i6
−． 1. 1 box with 2 shielding plates -- not likely to be fixed. −−□−□Power': KAB'*'dc, Sumisa] 5
There is a gap M because it is a beast] l': This is a book that will be secured. [Body] It is conceivable that the I space 415 is fixed by J hot plate 2/C spot welding as a means of distributing the Nisa 15. [Spacer] Spot weld both upper and lower ends of the spacer to prevent it from tilting. Ko=ni 4,"'mm Itatamasu low abyss has vines, but Koniai Penisa 15 is connected to waterway 1! I
I'Ic, J: ``I'm warm at 4 - +QB, 1st person 1111st raw shorthand. -Because of -, there is a shift in tab 5 welding, -1 form.
″ □-□Shikishi-1 The spacer 1D of the present invention is fixed to the heat shield plate 2 IC. J also pay ten garuko □iL, □-1+
Continuation I Part J 17 □ Connect Shiso V Mi name, A Benny-11
Problems such as the slope of 5 are also similar to fxmt. Insect board 22 retroactive route]', space □"+1'5 - eggplant <m
・ 4 ・ There are various ways to set up the installation order, but one of them is 1 reverse waterway 1 meter spacer 15 inside the heat shield plate with a circular LR configuration.
There is a way to insert . In the present invention, the spacer 15 is wound in the waterway 1 and inserted from the upper extension 1 of the heat shield plate 2 (V).
Ru. □ fi1 about 6: □ Since it is flexible at t7, it can be sharpened when wrapped around the palm. Ota□J connection PI
By making the diameter of the hole 17 smaller than that of the heat shield plate 2, it can be easily inserted. ' □Insert the spanner fitting 15 (if it hits fC, set the upper connecting plate j6 so that it is inside the cutting spacer 15 (Ill l), □
4th part of the connecting machine 16 When inserted, the connecting plate 16 does not get caught on the end face of the heat shield plate 2, and can be easily inserted. ,1',,,1. ,,j,,
□ ・ ″ □□：Shanghai Yukishida+i
Although the present invention is a spacer with 6 heat shield plates and 1 spacer, it is also possible to apply the present invention to a baffle with ``3 sides longer side''. In this case, it is necessary to set the first red part on Papple 3 to prevent the cutting page + 16th steaming. □・t', 16.177 spacing 4J- for insertion and connection
Since j5 is treated as one piece, Kesis: +- swim

【雌形Ｌ１もので（
よ・いｉ□〔発Ｈ月の交ｊ＋１４↓〕以ヒの如く本発明は、鉛直方向＜耐量する複数のスペー
サの上下端４Ｔｌｌｌ全そねぞね接続して設け、こね５
を年１ｈ方向に熱膜→Ｉ−，可能ＩＣ隙間内ｔａ’−配
置１−たので、隙間を確保できる七Ｊｌ；（ｔ（熱変形
等を防什できるものである。［ツｌイ［１の勇）中外説明館】図に従来の１時間式、給湯機の縦断面図、第２図は
本発明の一実施例を備えた瞬間式給湯機の縦断面図、第
：３図は第２図のＡ−Ａ断面図、第４図は第３図のＢ部
拡大図、第５図（ハ）第４図のスペーサの展開図、第６
図は第５図の右端の平面図である。】・・・逆ｚ＋＜路　　　　　２・・・遮熱板３・・・
バッフル　　　　４・・・矢　板５・・・バーナ　　　
　　６・・・燃焼室７・・・排気口　　　　　９．ＪＯ
・・・隙　間１５・・・スベー−Ｉ＋１６．１７・・・
連接板・　７　・）′１図[Female type L1 (
YO・I□ [Intersection of H month j+14↓] As shown below, in the present invention, the upper and lower ends 4Tllll of a plurality of spacers that withstand the vertical direction are all connected, and kneaded 5
Since the thermal film was placed in the direction of 1h in the direction of the thermal film→I-, the possible IC gap was placed 1-, a gap could be secured and thermal deformation etc. could be prevented. 1. Isamu) Chugai Explanation Hall] Figure 2 is a vertical cross-sectional view of a conventional one-hour water heater, Figure 2 is a vertical cross-sectional view of an instantaneous water heater equipped with an embodiment of the present invention, and Figure 3 is a vertical cross-sectional view of an instantaneous water heater equipped with an embodiment of the present invention. Figure 2 is a sectional view taken along line A-A in Figure 2, Figure 4 is an enlarged view of part B in Figure 3, Figure 5 (c) is a developed view of the spacer in Figure 4,
The figure is a plan view of the right end of FIG. ]...Reverse z+<path 2...Heat shield plate 3...
Baffle 4...Arrow Plate 5...Burner
6... Combustion chamber 7... Exhaust port 9. J.O.
...Gap 15...Sube-I+16.17...
Connecting plate・7・）'1 Diagram

Claims

[Scope of Claims] 1. In a heat exchanger in which a coiled heat medium passage is arranged with a gap between the combustion gas passage and a passage wall constituting the combustion gas passage, and the combustion gas passage is arranged in a vertical direction, the gap In order to form a spacer, a plurality of spacers having a size approximately equal to the essential formula of the vertical gap 11 are connected to each other at the upper and lower ends, and these spacers are arranged in the gap so as to be thermally expandable in the vertical direction. A heat exchanger characterized by: 2. V5 in claim 1, characterized in that the material connecting the upper and lower rain ends of the plurality of spacers has a flexible shape and is flat before being placed in the gap. heat exchanger. 3. Claiming a patent! @, Section 4, Section 2, V) A heat exchanger characterized in that the member connecting one of the plurality of spacers at the lower end side is a member different from the spacer. 4. In claim 1, the plurality of spaces →I- are suspended from the L part y of the passage wall, or are suspended from the bottom part 1C of the passage wall. This is one of the seven heat exchangers. 5. In the first part ri, the inner surface of the passageway wall of the front station U7Cii and the front 1 heat medium communication path are connected to the lower part of the combustion chamber 7 L1 through the space between A heat exchanger characterized in that a number of spakes are installed on a bottom plate that constitutes a combustion chamber.