JPS6339572Y2 - - Google Patents
Info
- Publication number
- JPS6339572Y2 JPS6339572Y2 JP1983119861U JP11986183U JPS6339572Y2 JP S6339572 Y2 JPS6339572 Y2 JP S6339572Y2 JP 1983119861 U JP1983119861 U JP 1983119861U JP 11986183 U JP11986183 U JP 11986183U JP S6339572 Y2 JPS6339572 Y2 JP S6339572Y2
- Authority
- JP
- Japan
- Prior art keywords
- outer cylinder
- baffle plate
- donut
- shaped baffle
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000001816 cooling Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000009467 reduction Effects 0.000 description 3
- 239000003779 heat-resistant material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
Landscapes
- Details Of Heat-Exchange And Heat-Transfer (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
【考案の詳細な説明】
本考案はレキユペレータに係り、さらに詳しく
は熱伝導効率を上げることにより小型化すること
ができるように構成したレキユペレータに関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a recuperator, and more particularly to a requiperator configured to be miniaturized by increasing heat conduction efficiency.
従来のレキユペレータの構造を第１図に示す。 The structure of a conventional recuperator is shown in FIG.
第１図に示す例は多管式のレキユペレータで、
図において符号１は外筒を示し、その外側は耐熱
材１ａによつて覆われている。この外筒１は直円
筒状に形成されており、上部より加熱ガス室５、
熱交換室８、ガス排出室７とに分けられている。 The example shown in Figure 1 is a multi-tube recuperator.
In the figure, reference numeral 1 indicates an outer cylinder, the outside of which is covered with a heat-resistant material 1a. This outer cylinder 1 is formed into a right cylindrical shape, and from the top, a heating gas chamber 5,
It is divided into a heat exchange chamber 8 and a gas discharge chamber 7.
加熱ガス室５と熱交換室８との間には上部の管
板１３が、また、熱交換室８とガス排出室７との
間にも下部の管板１４がそれぞれ設けられてい
る。 An upper tube sheet 13 is provided between the heating gas chamber 5 and the heat exchange chamber 8, and a lower tube sheet 14 is provided between the heat exchange chamber 8 and the gas discharge chamber 7, respectively.
加熱ガス室８の一側には加熱ガス導管６が開口
しており、ここから加熱ガスが導入される。 A heating gas conduit 6 is opened on one side of the heating gas chamber 8, and heating gas is introduced from here.
熱交換室８の内部には外筒１と平行に多数の伝
熱管２ａ及び冷却管２が配置されている。 Inside the heat exchange chamber 8, a large number of heat transfer tubes 2a and cooling tubes 2 are arranged parallel to the outer cylinder 1.
少数の冷却管２は、上下の管板１３と１４との
間に、上下端を閉鎖して取付けられており、上下
の管板１３，１４に近くスリツト１５，１６が開
口している。 A small number of cooling pipes 2 are installed between upper and lower tube sheets 13 and 14 with their upper and lower ends closed, and slits 15 and 16 are open near the upper and lower tube sheets 13 and 14.
また、多数の伝熱管２ａは上下の管板１３，１
４を貫通し、加熱ガス室５とガス排出室７との間
に開口している。 In addition, a large number of heat exchanger tubes 2a are arranged in upper and lower tube sheets 13, 1.
4 and opens between the heating gas chamber 5 and the gas discharge chamber 7.
そして、これらの伝熱管２ａ及び冷却管２を利
用して大直径のドーナツ型の邪魔板３と小直径の
邪魔板４とが交互に、かつ伝熱管２ａ及び冷却管
２と直交した状態で所定間隔離して配置されてい
る。ドーナツ型の邪魔板３と小直径の邪魔板４と
は互い違いに伝熱管２ａ及び冷却管２を取付けた
状態で、外筒１の内部に収容されている。 Using these heat transfer tubes 2a and cooling tubes 2, large-diameter donut-shaped baffle plates 3 and small-diameter baffle plates 4 are arranged alternately and perpendicularly to the heat transfer tubes 2a and cooling tubes 2 at predetermined positions. are placed in isolation. The donut-shaped baffle plate 3 and the small-diameter baffle plate 4 are housed inside the outer cylinder 1 with heat transfer tubes 2a and cooling tubes 2 attached alternately.
符号９は被加熱ガスの供給管、また符号１２は
被加熱ガスの排出管である。 Reference numeral 9 is a supply pipe for heated gas, and reference numeral 12 is a discharge pipe for heated gas.
供給管９から導かれた被加熱ガスは、外筒１の
円周方向に沿つて所定間隔であけられた開口部１
０内に導かれ、外筒１内に入る。そして、ドーナ
ツ型の邪魔板３の中央部の開口部と、小直径の邪
魔板４の外側との間をジグザグに通過して伝熱管
２ａに導かれる高温の加熱ガスとの間で熱交換が
行なわれる。また、被加熱ガスの一部は、冷却管
２の下部のスリツト１６より冷却管２内にも導か
れ、上昇して上部の管板１３を冷却する。そし
て、熱交換を終了した被加熱ガスは外筒１の加熱
ガス室５の端部近傍において円周方向に沿つてあ
けられた開口部１１から排出管１２へと導かれ
る。 The gas to be heated led from the supply pipe 9 is passed through the openings 1 formed at predetermined intervals along the circumferential direction of the outer cylinder 1.
0 and enters the outer cylinder 1. Heat exchange occurs between the opening in the center of the donut-shaped baffle plate 3 and the high-temperature heated gas that passes in a zigzag pattern between the outside of the small-diameter baffle plate 4 and is guided to the heat transfer tube 2a. It is done. A part of the heated gas is also guided into the cooling pipe 2 through the slit 16 at the lower part of the cooling pipe 2, rises, and cools the upper tube plate 13. The heated gas that has completed the heat exchange is guided to the discharge pipe 12 through an opening 11 formed along the circumferential direction near the end of the heated gas chamber 5 of the outer cylinder 1.
また、熱交換を終了した加熱ガスはガス排出室
７に入り、さらに下部に設けたガス排出口１７よ
り外筒１外に排出される。 Further, the heated gas that has undergone heat exchange enters the gas discharge chamber 7 and is further discharged to the outside of the outer cylinder 1 through the gas discharge port 17 provided at the lower part.
ところで以上のような構造を採用すると、外筒
１およびドーナツ型の邪魔板３の製作誤差および
外筒１の円周方向の溶接による縮みを見込んで製
作しなければならず、外筒の内径とドーナツ型の
邪魔板３の外径との間のすきまは５〜10mm程度と
する必要がある。 By the way, if the above structure is adopted, manufacturing errors in the outer cylinder 1 and the donut-shaped baffle plate 3 and shrinkage due to welding in the circumferential direction of the outer cylinder 1 must be taken into consideration, and the inner diameter of the outer cylinder and The gap between the outer diameter of the donut-shaped baffle plate 3 needs to be about 5 to 10 mm.
このようにすきまが10mm程度になると、ドーナ
ツ型の邪魔板３の穴の面積に対しすきまの面積が
30％〜50％程度となつてしまう。この傾向は小さ
なサイズのもの程大きくなる。 When the gap is about 10mm like this, the area of the gap is smaller than the area of the hole in the donut-shaped baffle plate 3.
It will be around 30% to 50%. This tendency becomes larger as the size becomes smaller.
このようにすきま面積が大きくなると被加熱ガ
スは邪魔板間をジグザグに通過せず、外筒とドー
ナツ型邪魔板との間のすきまを直進してしまう。
このため伝熱管２ａと接触して通過する被加熱ガ
ス量が減少するため、被加熱ガスの出口温度が設
定値以上にオーバヒートされることになり、部材
の耐熱対策を講じなければならなくなる。 When the gap area becomes large in this way, the heated gas does not pass between the baffle plates in a zigzag pattern, but instead travels straight through the gap between the outer cylinder and the donut-shaped baffle plate.
As a result, the amount of gas to be heated that comes into contact with and passes through the heat transfer tube 2a is reduced, so that the outlet temperature of the gas to be heated is overheated to a set value or higher, and it is necessary to take measures for heat resistance of the member.
また、伝熱効果が悪いため、レキユペレータの
サイズを大きくしなければならないという欠点が
ある。 Another disadvantage is that the size of the recuperator must be increased due to the poor heat transfer effect.
本考案は、以上のような従来の欠点を除去する
ためになされたもので、外筒と大直径のドーナツ
型の邪魔板との間のすきまを著しく小さくするこ
とにより製作誤差に大きな自由度をもたせ、全体
として小型化することができるように構成したレ
キユペレータを提供することを目的としている。 The present invention was developed in order to eliminate the above-mentioned drawbacks of the conventional technology, and by significantly reducing the gap between the outer cylinder and the large-diameter donut-shaped baffle plate, it provides a greater degree of freedom for manufacturing errors. It is an object of the present invention to provide a recuperator configured so that it can be made more compact and smaller as a whole.
以下、図面に示す実施例に基いて本考案を詳細
に説明する。 Hereinafter, the present invention will be explained in detail based on embodiments shown in the drawings.
第２図および第３図は本考案の一実施例を説明
するものであり、本図中、第１図と同一部分には
同一符号を付し、その説明は省略する。 FIGS. 2 and 3 illustrate one embodiment of the present invention. In the figures, the same parts as in FIG. 1 are designated by the same reference numerals, and their explanation will be omitted.
本実施例にあつては外筒１を所定のテーパをも
つて形成してある。すなわち加熱ガス室５側が小
直径でガス排出室７側が大直径となるように形成
されている。 In this embodiment, the outer cylinder 1 is formed with a predetermined taper. That is, it is formed so that the heating gas chamber 5 side has a small diameter and the gas discharge chamber 7 side has a large diameter.
また、ドーナツ型の邪魔板３の外径も外筒１の
テーパに合わせてガス排出室７側に至るに従い、
次第に直径が大きくなるように形成されている。 Also, the outer diameter of the donut-shaped baffle plate 3 is adjusted to the taper of the outer cylinder 1 as it reaches the gas discharge chamber 7 side.
It is formed so that the diameter gradually increases.
このような構造を採用すると、伝熱管２ととも
に邪魔板を外筒１内に組込むとき、ガス排出室７
側の大直径側の端部から挿入し、ドーナツ型の邪
魔板３と外筒１との間のすきまが最小となるよう
に組立てることができる。 If such a structure is adopted, when the baffle plate is assembled into the outer cylinder 1 together with the heat exchanger tube 2, the gas discharge chamber 7
It can be inserted from the end on the large diameter side of the side, and assembled so that the gap between the donut-shaped baffle plate 3 and the outer cylinder 1 is minimized.
また、このように外筒１をテーパ状にし、ドー
ナツ型の邪魔板の外形もこれに応じて変化させる
構造を採用しているので、外筒１の製作誤差とド
ーナツ型の邪魔板３の製作誤差とがあつても、伝
熱管２ａと邪魔板３，４の組立体を軸線方向に沿
つて相対的に位置ずれさせることにより吸収する
ことができ、製作に大きな自由度が生じる。 In addition, since the outer cylinder 1 is tapered and the outer shape of the donut-shaped baffle plate is changed accordingly, manufacturing errors in the outer cylinder 1 and manufacturing errors in the donut-shaped baffle plate 3 are avoided. Even if there is an error, it can be absorbed by relatively shifting the assembly of the heat exchanger tube 2a and the baffle plates 3, 4 along the axial direction, resulting in a large degree of freedom in manufacturing.
このようにして外筒１とドーナツ型の邪魔板３
との間のすきまを著しく小さくすることができ、
従来のレキユペレータと比較し、その大きさを20
〜30％縮小することが可能となり、大幅なコスト
ダウンが実現できる。 In this way, the outer cylinder 1 and the donut-shaped baffle plate 3 are
The gap between the
Compared to the conventional requiperator, its size is 20
It is possible to reduce the size by ~30%, resulting in significant cost reductions.
ところで、ここで外筒１のテーパについて付言
すると以下のとおりである。 By the way, the following is an additional comment regarding the taper of the outer cylinder 1.
すなわち、第３図に示すように外筒１の溶接縮
小代をＡ、大直径の邪魔板のピツチをＢとする
と、ドーナツ型の邪魔板３と邪魔板４間のピツチ
をＢ／２としてテーパを決定すればよい。 That is, as shown in FIG. 3, if the welding reduction allowance of the outer cylinder 1 is A, and the pitch of the large-diameter baffle plate is B, then the pitch between the donut-shaped baffle plate 3 and the baffle plate 4 is B/2, and the taper is All you have to do is decide.
以上の説明から明らかなように本考案によれ
ば、レキユペレータの外筒をテーパ状とするとと
もに、内部に取付けられるドーナツ型の邪魔板と
して形成された邪魔板を外筒のテーパに合わせて
一方から他方にかけて大直径となるようにした構
造を採用しているので、外筒と、ドーナツ型の邪
魔板との間のすきまを著しく小さくすることがで
き、伝熱効率を大幅に改善できるとともに製作誤
差があつても、これを吸収することができ、組立
てが容易となる。 As is clear from the above description, according to the present invention, the outer cylinder of the requiperator is tapered, and the baffle plate formed as a donut-shaped baffle plate attached to the inside is aligned with the taper of the outer cylinder. Since the structure has a large diameter towards the other end, it is possible to significantly reduce the gap between the outer cylinder and the donut-shaped baffle plate, greatly improving heat transfer efficiency and reducing manufacturing errors. Even if there is such a problem, it can be absorbed and assembly becomes easy.
また、外筒と大直径のドーナツ型の邪魔板との
間のすきまを小さくすることができるため、全体
として小型化することができ、大幅なコストダウ
ンを実現することができる。 Furthermore, since the gap between the outer cylinder and the large-diameter donut-shaped baffle plate can be reduced, the overall size can be reduced, and significant cost reductions can be achieved.
第１図は従来構造を説明する縦断側面図、第２
図は本考案の一実施例を説明する縦断側面図、第
３図は第２図の一部拡大図である。
１は外筒、１ａは耐熱材、２は冷却管、２ａは
伝熱管、３はドーナツ型の邪魔板、４は小直径の
邪魔板、５は加熱ガス室、６は加熱ガス導管、７
はガス排出室、８は熱交換室、９は被加熱ガスの
供給管、１０は外筒下部の開口部、１１は外筒上
部の開口部、１２は被加熱ガスの排出管、１３，
１４は上下の管板、１５は冷却管上部のスリツ
ト、１６は冷却管下部のスリツト、１７はガス排
出口である。
Figure 1 is a vertical cross-sectional side view explaining the conventional structure, Figure 2
The figure is a vertical side view illustrating an embodiment of the present invention, and FIG. 3 is a partially enlarged view of FIG. 2. 1 is an outer cylinder, 1a is a heat-resistant material, 2 is a cooling pipe, 2a is a heat exchanger tube, 3 is a donut-shaped baffle plate, 4 is a small diameter baffle plate, 5 is a heating gas chamber, 6 is a heating gas conduit, 7
1 is a gas discharge chamber, 8 is a heat exchange chamber, 9 is a supply pipe for heated gas, 10 is an opening at the bottom of the outer cylinder, 11 is an opening at the top of the outer cylinder, 12 is a discharge pipe for heated gas, 13,
14 is an upper and lower tube plate, 15 is a slit in the upper part of the cooling pipe, 16 is a slit in the lower part of the cooling pipe, and 17 is a gas discharge port.
Claims (1)
るようにテーパをつけて形成した外筒の内部に、
外筒のテーパに合わせて加熱ガス室側よりガス排
出側に至るに従い次第に直径が大きくなるように
形成したドーナツ型の邪魔板を取付けたことを特
徴とするレキユペレータ。 Inside the outer cylinder is tapered so that the heating gas chamber has a small diameter and the gas discharge chamber has a large diameter.
A recuperator characterized in that a donut-shaped baffle plate is attached whose diameter gradually increases from the heating gas chamber side to the gas discharge side in accordance with the taper of the outer cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11986183U JPS6027267U (en) | 1983-08-02 | 1983-08-02 | requiturer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11986183U JPS6027267U (en) | 1983-08-02 | 1983-08-02 | requiturer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6027267U JPS6027267U (en) | 1985-02-23 |
| JPS6339572Y2 true JPS6339572Y2 (en) | 1988-10-18 |
Family
ID=30274916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11986183U Granted JPS6027267U (en) | 1983-08-02 | 1983-08-02 | requiturer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6027267U (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5866278U (en) * | 1981-10-17 | 1983-05-06 | ダイキン工業株式会社 | Heat exchanger |
-
1983
- 1983-08-02 JP JP11986183U patent/JPS6027267U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6027267U (en) | 1985-02-23 |
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