JPS5937597Y2 - Shell-and-tube heat exchanger - Google Patents
Shell-and-tube heat exchangerInfo
- Publication number
- JPS5937597Y2 JPS5937597Y2 JP5062380U JP5062380U JPS5937597Y2 JP S5937597 Y2 JPS5937597 Y2 JP S5937597Y2 JP 5062380 U JP5062380 U JP 5062380U JP 5062380 U JP5062380 U JP 5062380U JP S5937597 Y2 JPS5937597 Y2 JP S5937597Y2
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- notch
- shell
- baffle plate
- flow
- 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
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】
従来の切欠バッフル板付多管式熱交換器においては、第
１図に示すように入口ノズル１より流入したシェル側流
体は、管板２とバッフル板３あるいはバッフル板３同志
よりなる流路をジグザグに矢印のように流れ、その間チ
ューブ４内流体と熱交換しながら出口ノズル５に達し、
ここから流出する。[Detailed description of the invention] In a conventional multi-tubular heat exchanger with a notched baffle plate, as shown in FIG. It flows in a zigzag manner in the direction of an arrow through a flow path consisting of similar fluids, and during that time it reaches the outlet nozzle 5 while exchanging heat with the fluid inside the tube 4.
It flows out from here.
このような多管式熱交換器では管板２とバッフル板３あ
るいは２枚のバッフル板３０間に構成される流路（以後
クロスフロ一部と呼ぶ）におけるシェル側流体の流速分
布が性能に大きく影響する。In such a multi-tubular heat exchanger, the flow velocity distribution of the shell-side fluid in the flow path (hereinafter referred to as the cross-flow part) constructed between the tube plate 2 and the baffle plate 3 or between the two baffle plates 30 has a large effect on performance. Affect.
しかして、バッフル板３は全て管板２に平行に設置され
ているので第２図に示すように、シェル側流体がクロス
フロ一部へ流入する際、入口側バッフル板３ａの切欠端
８で剥離する。Since all the baffle plates 3 are installed parallel to the tube plate 2, as shown in FIG. do.
そしてクロスフロ一部に流入した流れは出口側バックル
板３ｂに衝突して流れの向きを変えこれに沿って流出す
るので、入口側バッフル板３ａの下流側に大きな淀み域
７が生じている。Then, the flow that has entered a part of the cross flow collides with the outlet side buckle plate 3b, changes the direction of the flow, and flows out along this direction, so that a large stagnation area 7 is generated on the downstream side of the inlet side baffle plate 3a.
このため縮流と急激な方向転換によりシェル側流体の圧
力損失が増大するとともに熱伝達率は理論値より極めて
低い値しか得られないという欠点があった。For this reason, the pressure loss of the shell-side fluid increases due to contracted flow and rapid direction changes, and the heat transfer coefficient has the disadvantage of being extremely lower than the theoretical value.
本考案は上記欠点を解消するために考案されたもので、
以下、第３図および第４図に示す１実施例について説明
する。This invention was devised to eliminate the above drawbacks.
One embodiment shown in FIGS. 3 and 4 will be described below.
第３図および第４図において、１０は缶月１ｉｉｋ１１
はチューブ、１２は切欠バッフル板、１３はバッフル板
１２に設けられた管穴でこの中をチューブ１１が貫通し
て伸びている。In Figures 3 and 4, 10 is 1iik11
12 is a tube, 12 is a notched baffle plate, and 13 is a tube hole provided in the baffle plate 12, through which the tube 11 extends.
１８はタイロッド、１９はバッフル板１２に設置たタイ
ロッド用穴でこの中をタイロッド１８が貫通して伸びて
いる。18 is a tie rod, and 19 is a hole for a tie rod installed in the baffle plate 12, through which the tie rod 18 extends.
各バッフル板１２にはその切欠き側近傍に複数個の貫通
穴１４が設けられている。Each baffle plate 12 is provided with a plurality of through holes 14 near its notch side.
しかして、第５図に示すように入口側バッフル板１２ａ
の切欠１５からクロスフロ一部に流入したシェル仙１流
体の流れは出口側バッフル板１２ｂに衝突して方向転換
しその切欠１６から流出するが、入口側バッフル板１２
ａの切欠側近傍に複数の貫通穴１４を設けているため、
シェル側流体の１部は切欠１５を通ることなく貫通穴１
４を通っチクロスフロ一部に流入するので、入口側バッ
フル板１２ａの下流側に生じる淀み域１７のクロスフロ
一部に占める割合が小さくなる。Therefore, as shown in FIG. 5, the entrance side baffle plate 12a
The flow of Shell Sen 1 fluid flowing into the cross flow part from the notch 15 collides with the outlet side baffle plate 12b, changes direction, and flows out from the notch 16, but the inlet side baffle plate 12
Since a plurality of through holes 14 are provided near the notch side of a,
A portion of the shell side fluid passes through the through hole 1 without passing through the notch 15.
4 and flows into a portion of the cross flow, the proportion of the stagnation area 17 that occurs downstream of the inlet baffle plate 12a in the cross flow becomes small.
そして切欠１５を流れる流量も少なくなる。The flow rate flowing through the notch 15 also decreases.
上記により、有効な伝熱面積の増加が図られると共に切
欠１５における圧力損失も低減することができるので従
来のものより小さな伝熱面積で従来のものと同様の熱交
換量が期待でき、シェル側流体移送用ポンプ動力も節減
できる。As a result of the above, the effective heat transfer area can be increased and the pressure loss at the notch 15 can also be reduced, so it is possible to expect the same amount of heat exchange as the conventional one with a smaller heat transfer area than the conventional one, and the shell side Pump power for fluid transfer can also be saved.
第１図は従来の多管式熱交換器の略示的断面図第２図は
上記従来のものにおけるクロスフロ一部の流れを示す図
、第３図は本考案の１実施例を示す暗示的横断面図、第
４図は第３図のＩＶ−ＩＶ線に沿う断面図、第５図は本
考案の１実施例におけるクロスフロ一部の流れを示す図
である。
１１・・・・・・チューブ、 １２・・曲バッフル板、
１ｏ・・・・・・缶胴、１５，１６・・・・・・切欠、
１８・・・・・・タイロッド、１４・・・・・・貫通穴
。Fig. 1 is a schematic cross-sectional view of a conventional multi-tubular heat exchanger; Fig. 2 is a diagram showing a part of the flow of the cross flow in the above-mentioned conventional heat exchanger; Fig. 3 is a schematic diagram showing an embodiment of the present invention. 4 is a cross-sectional view taken along the line IV--IV in FIG. 3, and FIG. 5 is a diagram showing the flow of a part of the cross flow in one embodiment of the present invention. 11...Tube, 12...Curved baffle plate,
1o... Can body, 15, 16... Notch,
18...Tie rod, 14...Through hole.
Claims (1)
る複数のバッフル板を相互に間隙を置いて該切欠きが交
番的に反対位置に位置するように配設し、シェル側流体
が該切欠を経て缶胴内をジグザグに流過するようにした
多管式熱交換器において、上記バッフル板の切欠側近傍
にチューブ又はタイロッドが貫通する穴とは別の複数個
の貫通穴を設けたことを特徴とする多管式熱交換器。A plurality of baffle plates each having a notch on one side are arranged in a can body in which a large number of tubes are housed, with a gap between them so that the notches are alternately located at opposite positions, and the shell-side fluid is In a multi-tubular heat exchanger in which the flow passes through a notch in a zigzag manner within the can body, a plurality of through holes other than the holes through which the tubes or tie rods pass are provided near the notch side of the baffle plate. A multi-tube heat exchanger characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5062380U JPS5937597Y2 (en) | 1980-04-15 | 1980-04-15 | Shell-and-tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5062380U JPS5937597Y2 (en) | 1980-04-15 | 1980-04-15 | Shell-and-tube heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56154694U JPS56154694U (en) | 1981-11-18 |
| JPS5937597Y2 true JPS5937597Y2 (en) | 1984-10-18 |
Family
ID=29645552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5062380U Expired JPS5937597Y2 (en) | 1980-04-15 | 1980-04-15 | Shell-and-tube heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5937597Y2 (en) |
-
1980
- 1980-04-15 JP JP5062380U patent/JPS5937597Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56154694U (en) | 1981-11-18 |
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