JPS6332297A - Multitubular type heat exchanger - Google Patents
Multitubular type heat exchangerInfo
- Publication number
- JPS6332297A JPS6332297A JP17404087A JP17404087A JPS6332297A JP S6332297 A JPS6332297 A JP S6332297A JP 17404087 A JP17404087 A JP 17404087A JP 17404087 A JP17404087 A JP 17404087A JP S6332297 A JPS6332297 A JP S6332297A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- tube
- tubes
- shell
- tubesheet
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 15
- 239000007787 solid Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000006232 furnace black Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、双方の端面側が開いていて、側方に接続する
、加熱すべき媒体を供給および排出するための入口管お
よび出口管を備えるケーシングが双方の端面側で伝熱管
を収容するための穿孔を備えるそれぞれ１つの管板によ
って閉じられていて、伝熱管は第１の端面側の管板中に
ガス密に固定され、かつ第２の端面側の管板中に収容さ
れておシ、ならびに各管板に続いてケーシングと結合し
たプロセスガス用のガス案内フードを有してなる、伝熱
管中を流れる、場合によって微細な固体を連行するプロ
セスガス流から、伝熱管のまわりの空間中を流れるガス
状媒体に熱を伝達するための多管式熱交換器に関する。DETAILED DESCRIPTION OF THE INVENTION Industrial Application The invention provides a casing which is open on both end sides and is provided with laterally connected inlet and outlet pipes for supplying and discharging the medium to be heated. closed on both end sides by a tube sheet in each case provided with perforations for accommodating the heat exchanger tubes, the heat exchanger tubes being fixed in a gas-tight manner in the tube sheet on the first end side and on the second end side. a gas guide hood for the process gas housed in the side tube sheets and connected to the casing following each tube sheet, entraining optionally fine solids flowing through the heat transfer tubes; Shell-and-tube heat exchanger for transferring heat from a process gas stream to a gaseous medium flowing in a space around heat transfer tubes.
従来の技術
本発明の対象は、微細な固体を含有するプロセスガスの
冷却に特に重要である。このガスが多管式熱交換器の伝
熱管を通過する場合に、運転時間が経つうちに管の内壁
に微細な固形物の被覆物が付着する。このため、伝熱管
は異なる熱さになることとなる。BACKGROUND OF THE INVENTION The object of the present invention is of particular interest for the cooling of process gases containing finely divided solids. When this gas passes through the heat exchanger tubes of a shell-and-tube heat exchanger, a coating of fine solids adheres to the inner walls of the tubes over the course of operating time. For this reason, the heat exchanger tubes will be heated at different temperatures.
まだ、微細でない固体を連行するプロセスガスの場合で
も、伝熱管は異なる熱さになることがある。たとえばフ
ァーネスブラック法において炉と分離装置との間で燃焼
用空気を炉から出るプロセスガスによって予熱するだめ
に使用されるような多管式熱交換器の場合に、伝熱管の
温度は２００〜９００°Ｃになる。従って、耐熱性、高
温安定性でカーボンブラック製造炉の廃ガス中のイオウ
含量のために相応に耐食性の材料を使用しなければなら
ない。これらの材料は、記載の温度ではわずかな強度お
よび弾性を有する。異なる管温度のため管に許容しえな
い高い応力が生じ、管が破壊する結果となるのを避ける
ために、今まで管は金属補整板を介して管板のどれかに
固定された。伝熱管と管板との間を弾性に結合する、頻
繁に使用される補整器構造は、幾つかの波形が管および
管板に固定されている薄い金属の波板からなる。Still, even for process gases that entrain non-fine solids, the heat exchanger tubes can be heated differently. For example, in the case of a shell-and-tube heat exchanger, such as that used in the furnace black process to preheat combustion air between the furnace and the separator by the process gas exiting the furnace, the temperature of the heat exchanger tubes is between 200 and 900. It becomes °C. Therefore, materials must be used that are heat-resistant, high-temperature stable and correspondingly corrosion-resistant due to the sulfur content in the waste gas of carbon black production furnaces. These materials have little strength and elasticity at the temperatures mentioned. In order to avoid unacceptably high stresses in the tube due to different tube temperatures, resulting in the tube breaking, the tube has hitherto been fixed to one of the tube sheets via a metal compensating plate. A frequently used compensator structure that provides a resilient connection between heat exchanger tubes and tubesheets consists of a thin metal corrugated sheet with several corrugations fixed to the tubes and tubesheets.
このような金属補整板は、構造に費用がかかり、取り付
けが困難であり、さらに比較的腐食し易いので、かなら
ずしも十分ではないので、膨張の補償の問題が簡単かつ
有効に解決される多管式熱交換器を提供する欲求が生じ
た。Such metal compensating plates are expensive in construction, difficult to install, and also relatively easy to corrode, so they are not always sufficient, so multi-tubular type, the problem of expansion compensation is solved simply and effectively. A desire arose to provide a heat exchanger.
発明を達成するための手段
従って、本発明の対象は、双方の端面側が開いていて、
側面に接続する、加熱すべき媒体を供給および排出する
ための入口管または出口管を備えるケーシングが双方の
端面側で、伝熱管を収容するための穿孔を備えだそれぞ
れ１つの管板によって閉じられていて、第１の端面側の
管板中に固定されかつ第２の端面側の管板中に収容され
た伝熱管、ならびに各管板に続いてケーシングと結合し
たプロセスガス用のガス案内フードを有してなる、伝熱
管中を流れ、場合によっては微細な固形物を連行するプ
ロセスガス流から、管のまわりの空間中を流れるガス状
媒体に熱を伝導するための改善された多管式熱交換器で
ある。この多管式熱交換器は、第２の端面側の管板の穿
孔は伝熱管の末端部を滑り嵌めで収容しかつ、穿孔は互
いに間隔を置いて配置された１つまたは幾つかの環状切
欠を有することを特徴とする。後者の場合、切欠は中実
ウェブによって互いに分離されている。Means for Accomplishing the Invention Accordingly, the subject of the present invention has both end faces open,
A casing with an inlet or outlet pipe for supplying and discharging the medium to be heated, which is connected to the side, is closed on both end sides by a tube sheet each provided with perforations for accommodating heat exchanger tubes. heat exchanger tubes fixed in the first end tubesheet and housed in the second end tubesheet, and a gas guide hood for the process gas coupled to the casing following each tubesheet. improved multi-tube for transferring heat from a process gas stream flowing through the heat transfer tube, optionally entrained with fine solids, to a gaseous medium flowing in a space around the tube, comprising: It is a type heat exchanger. The shell-and-tube heat exchanger is characterized in that the perforations in the tubesheet on the second end side receive the distal ends of the heat transfer tubes in a sliding fit, and the perforations are arranged in one or more annular shapes spaced apart from each other. It is characterized by having a notch. In the latter case, the cutouts are separated from each other by solid webs.
実際の運転において、上述した新規の交換器の構造は著
しく簡単かつニレガントでかつその作用に関して卓越し
た密封を保証しかつ管の裂壊傾向を著しく減少すること
が判明した。プロセスガスと加熱すべき媒体との混合は
、滑り嵌めの狭いすき間における高い流動抵抗による縮
流効果（該効果は環状切欠中での突然の断面拡張によシ
強化される）による密封に基づき生起せず、これにより
密封個所にかかる圧力はほとんど完全になくなる。In practical operation, it has been found that the construction of the new exchanger described above is extremely simple and robust and in terms of its operation guarantees excellent sealing and significantly reduces the tendency to bursting of the tubes. The mixing of the process gas and the medium to be heated takes place on the basis of a sealing effect due to the high flow resistance in the narrow gap of the sliding fit, which is reinforced by the sudden cross-sectional expansion in the annular cutout. This eliminates the pressure on the seal almost completely.
多管式熱交換器は、本発明の有利な１実施態様によれば
、環状切欠が半円形、長方形に構成されているかまたは
台形状のアンダーカットとして構成されているようにす
ることができる。According to an advantageous embodiment of the invention, the shell-and-tube heat exchanger can be provided in such a way that the annular recess is designed semicircularly, rectangularly or as a trapezoidal undercut.
少なくとも２個、有利には３〜５個の環状切欠を順次に
配置するのが有利であると立証された。It has proven advantageous to arrange at least two, preferably three to five, annular recesses one after the other.
製造が特に簡単な本発明の１実施態様では、直径４８．
３〜１６６龍の伝熱管の場合、環状切欠として幅３〜８
ｍｍで深さ３〜１０朋の長方形の断面を有する溝が存
在するように配慮する。In one embodiment of the invention, which is particularly simple to manufacture, a diameter of 48.
For heat exchanger tubes of 3 to 166 dragons, the width is 3 to 8 as an annular notch.
Care is taken that there is a groove with a rectangular cross section of 3 to 10 mm deep.
該切欠け、相応に厚く寸法定めされた管板の穿孔中へ切
削加工することによってつくられる。The notch is produced by machining into a correspondingly thickly dimensioned tube sheet borehole.
本発明による多管式熱交換器の有利であると立証された
実施態様の場合、伝熱管および管板は耐熱性、高温安定
および／または耐食性の鋼からなる。In an advantageous embodiment of the shell-and-tube heat exchanger according to the invention, the heat exchanger tubes and tube sheets consist of heat-resistant, high-temperature-stable and/or corrosion-resistant steel.
特に確実な密封作用は、管板穿孔が、室温での伝熱管の
外径に関して、ＤＩＮ７１５５、第２頁に従い、管に対
してＨ８、第２の端面側の穿孔に対してＨ８に一致する
滑り嵌めを有する場合に達成される。必要な場合には、
滑り嵌めは管を軽く圧延することにより圧縮される。A particularly reliable sealing effect is achieved by ensuring that the tubesheet perforations correspond to H8 for the tubes and H8 for the second end-side perforations according to DIN 7155, page 2, with respect to the external diameter of the heat exchanger tubes at room temperature. This is achieved when there is a fit. If necessary,
The slip fit is compressed by gently rolling the tube.
第２の端面側の管板における穿孔中に必要な数の切欠を
収納できるようにするために、管板は有利には２０〜８
０ｍｍの厚さに構成される。In order to be able to accommodate the required number of notches during the drilling in the tube sheet on the second end side, the tube sheet is preferably 20 to 8
It is configured to have a thickness of 0 mm.
本発明による多管式熱交換器は、空気、特に燃焼用空気
をファーネスブラック製造の際のカーボンブランク含有
のプロセスガスを用いて予熱するために有利に使用され
る。The shell-and-tube heat exchanger according to the invention is advantageously used for preheating air, in particular combustion air, with a carbon blank-containing process gas during the production of furnace black.
実施例
次に本発明を図面に示された特別の実施態様につきさら
に詳説する。EXAMPLES The invention will now be explained in more detail with reference to particular embodiments shown in the drawings.
第１図によれば、多管式熱交換器は、双方の開放端面側
２および３に開放ガス案内フード４を備えているケーシ
ング１からなる。ケーシングの側面には加熱すべき媒体
用の入口管５および出口管６が接続されている。ケーシ
ングの第１の端面側には管板７が固定されている。管板
の穿孔中に、伝熱管８の一端が溶接により固定されてい
る。第２の端面側３には、それよりも厚い管板９が固定
されている。該管板はその穿孔中に伝熱管の他端が滑り
嵌めで収容されている。各穿孔は、閉塞シール部材とし
て３つの旋削された切欠１０を有する。According to FIG. 1, a shell-and-tube heat exchanger consists of a casing 1 which is provided with open gas guide hoods 4 on both open end sides 2 and 3. An inlet pipe 5 and an outlet pipe 6 for the medium to be heated are connected to the sides of the casing. A tube plate 7 is fixed to the first end surface side of the casing. While drilling the tube sheet, one end of the heat transfer tube 8 is fixed by welding. A thicker tube sheet 9 is fixed to the second end side 3. The tubesheet has the other end of the heat exchanger tube received in the perforation with a slip fit. Each borehole has three turned notches 10 as closure sealing elements.
第２図には、管板９の穿孔中の伝熱管８の滑り嵌めが図
示されている。切欠１０は、それぞれウェブ１１により
互いに分離されている。In FIG. 2, the sliding fit of the heat exchanger tubes 8 during the drilling of the tube sheet 9 is illustrated. The cutouts 10 are each separated from each other by webs 11.
添付図面は本発明の実施例を示すもので、第１図は多管
式熱交換器の縦断面図であり、第２図は伝熱管の末端部
を有する第２の端面側の管板の穿孔を通る断面図である
。
１・・・ケーシング、２，３・・・端面側、４・・・ガ
ス案内フード、５・・・入口管、６・・・出口管、７・
・・管板、８・・・伝熱管、９・・・管板、１０・・・
切欠、１１・・・ウェブ
代理人 弁理士 矢 野 敏 雄
第１図
１− ケージ）ヴ
４ ２− 端圃狽り
３− 端面」則
８ ８３１０ ９ ”−ガス
泉内フ（５−人口管
６− 出１
１ １ ７− 管板
８−−イム熱菅
９− 管板
１０−一切欠
−ドThe accompanying drawings show an embodiment of the present invention, in which FIG. 1 is a longitudinal cross-sectional view of a shell-and-tube heat exchanger, and FIG. FIG. 3 is a cross-sectional view through the borehole; DESCRIPTION OF SYMBOLS 1... Casing, 2, 3... End surface side, 4... Gas guide hood, 5... Inlet pipe, 6... Outlet pipe, 7...
...Tube sheet, 8... Heat exchanger tube, 9... Tube sheet, 10...
Notch, 11... Web Agent Patent Attorney Toshio Yano Fig. 1 1-Cage) 4 2- End field removal 3- End surface rule 8 8310 9 ”- Gas spring internal fu (5- Population pipe 6) - Output 1 1 1 7 - Tube sheet 8 - Im heat tube 9 - Tube sheet 10 - Completely missing -
Claims (1)
すべき媒体を供給および排出するための入口管または出
口管を備えるケーシングが、双方の端面側で、伝熱管を
収容するための穿孔を備えたそれぞれ１つの管板により
閉じられていて、第１の端面側の管板中に耐ガス構造に
固定されかつ第２の端面側の管板中に収容された伝熱管
、ならびに各管板に続いてケーシングと結合したプロセ
スガス用のガス案内フードを有してなる、伝熱管中を流
れるプロセスガス流から、管のまわりの空間中を流れる
ガス状媒体に熱を伝達するための多管式熱交換器におい
て、第２の端面側の管板の穿孔が伝熱管の末端部を滑り
嵌めで収容しかつ穿孔は互いに間隔を置いて配置された
１つまたは幾つかの環状切欠を有することを特徴とする
多管式熱交換器。 ２、環状の切欠が半円形、長方形に構成されているかま
たは台形のアンダーカットとして構成されている特許請
求の範囲第１項記載の多管式熱交換器。 ３、少なくとも２つの環状切欠を有する特許請求の範囲
第１項または第２項記載の多管式熱交換器。 ４、直径４８．３〜１３３ｍｍの伝熱管の場合に、環状
の切欠として巾３〜８ｍｍで深さ３〜１０ｍｍの長方形
の断面を有する溝が存在する特許請求の範囲第１項〜第
３項までのいずれか１項記載の多管式熱交換器。 ５、伝熱管および管板が耐熱性、高温安定および／また
は耐食性の鋼からなる特許請求の範囲第１項〜第４項ま
でのいずれか１項記載の多管式熱交換器。 ６、管板の穿孔は、室温で伝熱管の外径に関して、ＤＩ
Ｎ７１５５、第２頁に従い、第２の端面の管板中の管に
対してｈ８および穿孔に対してＨ８に相応する滑り嵌め
を有する特許請求の範囲第１項〜第５項までのいずれか
１項記載の多管式熱交換器。 ７、第２の端面側の管板が２０〜８０ｍｍの厚さである
特許請求の範囲第１項〜第６項までのいずれか１項記載
の多管式熱交換器。[Claims] 1. A casing which is open on both end faces and is provided with an inlet pipe or an outlet pipe for supplying and discharging the medium to be heated, which is connected to the side face, is provided with a heat exchanger tube on both end faces. closed by a tubesheet each provided with a perforation for accommodating the tubes, the tubesheets being gas-tightly secured in the first end-side tubesheet and housed in the second end-side tubesheet. heat exchanger tubes, and a gas guide hood for the process gas following each tubesheet and coupled to the casing, transferring heat from the process gas flow flowing through the heat exchanger tubes to the gaseous medium flowing in the space around the tubes. In a shell-and-tube heat exchanger for transmitting A multi-tubular heat exchanger characterized by having an annular cutout. 2. The multi-tubular heat exchanger according to claim 1, wherein the annular cutout is configured in a semicircular or rectangular shape or as a trapezoidal undercut. 3. The multi-tubular heat exchanger according to claim 1 or 2, which has at least two annular notches. 4. In the case of a heat exchanger tube with a diameter of 48.3 to 133 mm, a groove having a rectangular cross section with a width of 3 to 8 mm and a depth of 3 to 10 mm is present as an annular notch.Claims 1 to 3 The shell-and-tube heat exchanger according to any one of the preceding items. 5. The shell-and-tube heat exchanger according to any one of claims 1 to 4, wherein the heat exchanger tubes and tube sheets are made of heat-resistant, high-temperature stable and/or corrosion-resistant steel. 6. The perforation of the tubesheet is DI with respect to the outside diameter of the heat transfer tube at room temperature
N7155, page 2, having a sliding fit corresponding to H8 for the tubes and H8 for the boreholes in the tube sheet of the second end face. Shell-and-tube heat exchanger described in Section 1. 7. The shell-and-tube heat exchanger according to any one of claims 1 to 6, wherein the tube plate on the second end side has a thickness of 20 to 80 mm.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3624423 | 1986-07-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6332297A true JPS6332297A (en) | 1988-02-10 |
Family
ID=6305529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17404087A Pending JPS6332297A (en) | 1986-07-18 | 1987-07-14 | Multitubular type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6332297A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0590186U (en) * | 1992-04-27 | 1993-12-07 | 大阪ガスエンジニアリング株式会社 | Heat exchanger |
| WO2003069253A1 (en) * | 2002-02-18 | 2003-08-21 | Mitsubishi Rayon Co.,Ltd. | Vertical multi-tubular heat exchanger and distillation tower system |
| JP2013234841A (en) * | 2012-05-10 | 2013-11-21 | Alstom Technology Ltd | Integrated gas cooling system for electric arc furnace |
-
1987
- 1987-07-14 JP JP17404087A patent/JPS6332297A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0590186U (en) * | 1992-04-27 | 1993-12-07 | 大阪ガスエンジニアリング株式会社 | Heat exchanger |
| WO2003069253A1 (en) * | 2002-02-18 | 2003-08-21 | Mitsubishi Rayon Co.,Ltd. | Vertical multi-tubular heat exchanger and distillation tower system |
| US7462262B2 (en) | 2002-02-18 | 2008-12-09 | Mitsubishi Rayon Co., Ltd. | Vertical multitubular heat exchanger and distillation column system including the same |
| JP2013234841A (en) * | 2012-05-10 | 2013-11-21 | Alstom Technology Ltd | Integrated gas cooling system for electric arc furnace |
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