JPS63282493A - Double heat transfer pipe type heat exchanger - Google Patents
Double heat transfer pipe type heat exchangerInfo
- Publication number
- JPS63282493A JPS63282493A JP11767887A JP11767887A JPS63282493A JP S63282493 A JPS63282493 A JP S63282493A JP 11767887 A JP11767887 A JP 11767887A JP 11767887 A JP11767887 A JP 11767887A JP S63282493 A JPS63282493 A JP S63282493A
- Authority
- JP
- Japan
- Prior art keywords
- flange
- tube
- heat exchanger
- outlet
- leak detection
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 34
- 230000008646 thermal stress Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 abstract description 20
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 7
- 229910052708 sodium Inorganic materials 0.000 description 7
- 239000011734 sodium Substances 0.000 description 7
- 238000007689 inspection Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 5
- 241000209499 Lemna Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 241000131771 Premna Species 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/0229—Double end plates; Single end plates with hollow spaces
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は二重伝熱管型熱交換器に係り、特に伝熱管の応
力低減を図ると共に伝熱管の破損の状況を簡便に探査す
るのに好適な二重伝熱管型熱交換器に関する。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a double heat exchanger tube type heat exchanger, and particularly to a method for reducing stress in heat exchanger tubes and easily detecting damage to the heat exchanger tubes. The present invention relates to a suitable double heat exchanger tube type heat exchanger.
高速増殖炉用蒸気発生器等の従来の熱交換器の構造を第
４図に示し、第５図はそのＡ部拡大断面図、第６図は第
５図のＢ−Ｂ線断面図である。The structure of a conventional heat exchanger such as a steam generator for a fast breeder reactor is shown in FIG. 4, FIG. 5 is an enlarged sectional view of part A, and FIG. .
この熱交換器において、１次側のナトリウムは、ナトリ
ウム入口ノズル３から胴ブレムナ１３に入り、下降しな
がら二重伝熱管１２内の水または蒸気と熱交換し、ナト
リウム出口ノズル４から出る。In this heat exchanger, sodium on the primary side enters the body Bremna 13 from the sodium inlet nozzle 3, exchanges heat with water or steam in the double heat exchanger tube 12 while descending, and exits from the sodium outlet nozzle 4.
胴プレムナ１３内には通常、数千木の二重伝熱管１２が
配置されており、２次側の水または蒸気は、水入口ノズ
ル５から水入口１４に入り、二重伝熱管１２内を上昇し
ながらナトリウムと熱交換し、水出ロプレムナ１５を通
って、水出口ノズル６から出る。Usually, several thousand double heat exchanger tubes 12 are arranged in the body premna 13, and water or steam on the secondary side enters the water inlet 14 from the water inlet nozzle 5 and flows inside the double heat exchanger tubes 12. As it rises, it exchanges heat with the sodium, passes through the water droplet 15, and exits from the water outlet nozzle 6.
ここで使用される二重伝熱管１２は第５．６図に示すよ
うに内管１２ａと外１２ｂとから成り、内管１２ａと外
管１２ｂは機械的に圧着され、一体となっている。また
、外管１２ｂの内側にはリーク検出用のリーク検出溝１
９が縦に数本設けられている。またリーク検出溝１９は
内管１２ａに設けられる場合もある。The double heat transfer tube 12 used here consists of an inner tube 12a and an outer tube 12b, as shown in FIG. 5.6, and the inner tube 12a and the outer tube 12b are mechanically crimped and integrated. Furthermore, a leak detection groove 1 for leak detection is provided inside the outer tube 12b.
9 are provided vertically. Further, the leak detection groove 19 may be provided in the inner tube 12a.
二重伝熱管１２を使用する理由は、二重伝熱管１２の外
管１２ｂの外側がナトリウムであるのに対し、内管１２
ａの内側は水または蒸気であり、万一、伝熱管破裂が外
管１２ｂから内管ｔＺａ、または、内管１２ａから外管
１２ｂに移行する前に、リーク検出溝１９よりリーク検
出流体出ロブレムナ１７を経由し、リーク検出器２０に
より未然にリークを検出することにより、ナトリウムと
水又は蒸気との爆発的反応を防止することにある。The reason for using the double heat exchanger tube 12 is that the outside of the outer tube 12b of the double heat exchanger tube 12 is made of sodium, while the inner tube 12 is made of sodium.
The inside of a is water or steam, and in the unlikely event that a heat exchanger tube ruptures, before it moves from the outer tube 12b to the inner tube tZa or from the inner tube 12a to the outer tube 12b, the leak detection fluid will be discharged from the leak detection groove 19. The purpose is to prevent an explosive reaction between sodium and water or steam by detecting the leak in advance by the leak detector 20 via the leak detector 17.
次に第７図は、第４図に示す二重伝熱管型熱交換器の要
部断面図である。Next, FIG. 7 is a sectional view of essential parts of the double heat exchanger tube type heat exchanger shown in FIG. 4.
内管用出口管板８と外管用出口管板１０は、リーク検出
流体出ロプレムナ胴体４１と溶接部４２で接続され、リ
ーク検出流体比ロプレムナ１７を構成している。リーク
検出流体出ロブレムナ１７には内管１２ａおよび外管１
２ｂのリークを検出するため、リーク検出器２０が取付
けられている。The inner tube outlet tube plate 8 and the outer tube outlet tube plate 10 are connected to a leak detection fluid output rope plenumer body 41 and a welded portion 42, and constitute a leak detection fluid ratio plenumer 17. The leak detection fluid outlet 17 has an inner pipe 12a and an outer pipe 1.
A leak detector 20 is attached to detect leaks from the pipe 2b.
内管１２ａは、内管用出口管板８に溶接部４３で接続さ
れている。一方、外管１２ｂは外管用出口管板１０に同
様、溶接部４４で接続されている。The inner tube 12a is connected to the inner tube outlet tube plate 8 at a welded portion 43. On the other hand, the outer tube 12b is similarly connected to the outlet tube plate 10 for the outer tube at a welded portion 44.
胴体１と外管用出口管［１０、鏡２と内管用出口管板８
も同様に溶接部により接続されている。Body 1 and outlet tube for outer tube [10, mirror 2 and outlet tube plate for inner tube 8
are similarly connected by welds.
上記した、従来の二重伝熱管型熱交換器においては、内
管１２ａ内の水または蒸気に較べ、リーク検出流体出ロ
プレムナ１７内管の温度が低いため、リーク検出流体出
ロプレムナ面間Ｌ１内管１２ａとリーク検出流体出口胴
体４１との間で軸方向に熱膨張による伸び差が生じ、内
管１２ａに大きな熱応力が発生し、構造上の問題があっ
た。In the above-mentioned conventional double heat exchanger tube type heat exchanger, the temperature of the inner tube of the leak detection fluid outlet rope lemna 17 is lower than that of water or steam in the inner tube 12a. There was a difference in elongation due to thermal expansion in the axial direction between the tube 12a and the leak detection fluid outlet body 41, and a large thermal stress was generated in the inner tube 12a, resulting in a structural problem.
また、万一、内管１２ａまため外管１２ｂが破損した場
合、リーク検出流体比ロプレムナ１７を介してリーク検
出器２０でリークしたこたとを検出できるが、破損した
伝熱管をプラグするためには、どの伝熱管が破損したか
調査（同定）する必要がある。内管１２ａの場合、第８
図に示すようにアクセスホール閉止板１８を開放し、水
出ロブレムナ１５内に水４６を張り、リーク検出流体比
ロプレムナ１７内へ気体を封入し、加圧することにより
、アクセスホール用ノズル１１から水出ロブレムナ１５
内の気泡４７を目視でき、破損した伝熱管が発見できる
。しかしながら、外管１２ｂが破損した場合、リーク検
出器２０によりリーク自体は検出できるが、どの伝熱管
破損したか調査することができないと−いう問題があっ
た。In addition, in the event that the inner tube 12a or the outer tube 12b is damaged, the leakage can be detected by the leak detector 20 via the leak detection fluid ratio rope lemna 17, but it is necessary to plug the damaged heat transfer tube. It is necessary to investigate (identify) which heat exchanger tube is damaged. In the case of the inner pipe 12a, the eighth
As shown in the figure, the access hole closing plate 18 is opened, water 46 is filled in the water outlet loblemna 15, and gas is sealed in the leak detection fluid ratio loblemna 17 and pressurized. Outro bremna 15
The bubbles 47 inside can be visually observed, and the damaged heat exchanger tube can be discovered. However, when the outer tube 12b is damaged, although the leak itself can be detected by the leak detector 20, there is a problem in that it is not possible to investigate which heat transfer tube is damaged.
次にリーク検出流体比ロプレムナ胴体４１と内管用出口
管板８、リーク検出流体出ロブレムナ胴体４１と外管用
出口管板１０との溶接部４２はそれぞれ放射線透過検査
の規格要求があるが、伝熱管が邪魔となり検査が困難で
あった。Next, the welds 42 between the leak detection fluid ratio lopremna body 41 and the outlet tube plate 8 for the inner tube, and the welded parts 42 between the leak detection fluid output lopremna body 41 and the outlet tube plate 10 for the outer tube each have radiographic inspection standards, but the heat exchanger tube This made inspection difficult.
本発明の目的は、上記した従来技術の問題点を解消し、
これら熱膨張による伸びの吸収できる構造とすることが
でき、かつ外管が破損した場合、その伝熱管を発見でき
、また、上記の溶接部の放射線透過検査を要しない二重
伝熱管型熱交換器を提供することにある。The purpose of the present invention is to solve the problems of the prior art described above,
A double heat exchanger type heat exchanger that can absorb the elongation due to thermal expansion, allows the detection of the heat exchanger tube if the outer tube is damaged, and eliminates the need for the above-mentioned radiographic inspection of the welded part. It is about providing the equipment.
上記した目的は、リーク検出用の空間部（リーク検出流
体出口プレナム等）の側面部が前記内管用出口管板から
外側に延設された第１のフランジと、前記外管用出口管
板から外側に延設された第２のフランジと、第１のフラ
ンジと第２のフランジとの間に着脱可能に装荷された中
間フランジとを備え、第１のフランジと第２のフランジ
はそれぞれ前記管板間に生じる熱応力による伸び等に応
じて変形可能なフランジ厚みを有することによって達成
される。The above purpose is such that the side surface of the leak detection space (leak detection fluid outlet plenum, etc.) has a first flange extending outward from the outlet tube sheet for the inner tube, and a first flange extending outward from the outlet tube sheet for the outer tube. and an intermediate flange removably loaded between the first flange and the second flange, the first flange and the second flange each extending from the tube sheet. This is achieved by having a flange thickness that can be deformed depending on elongation due to thermal stress generated between the two.
内管とリーク検出流体出口プレナム面間の熱膨張による
伸び差は、内管用出口管板から外側に延設された第１の
フランジと、前記外管用出口管板から外側に延設された
第２のフランジのそれぞれ変形作用により吸収され、熱
交換器の運転時、内管の耐久性の範囲内の低い応力レベ
ルに低減できる。The difference in elongation due to thermal expansion between the inner tube and the leak detection fluid outlet plenum surface is determined by a first flange extending outwardly from the outlet tubesheet for the inner tube and a second flange extending outwardly from the outlet tubesheet for the outer tube. It is absorbed by the deformation action of the two flanges, respectively, and can be reduced to a low stress level within the durability of the inner tube during operation of the heat exchanger.
外管が破損した場合、中間フランジを第１のフランジと
第２のフランジから離脱させ、リーク検出用の空間部（
リーク検出流体出口プレナムの内部等）を点検すること
により破損した伝熱管を探査できる。If the outer tube is damaged, the intermediate flange is separated from the first flange and the second flange, and the leak detection space (
Damaged heat transfer tubes can be detected by inspecting the inside of the leak detection fluid outlet plenum, etc.
中間フランジは、第１のフランジと第２のフランジに溶
接手段によることなく、ボルト等により着脱可能に装荷
されるから溶接部に要求される放射透過検査を必要とし
ない。Since the intermediate flange is removably attached to the first flange and the second flange by bolts or the like without using welding means, the radiographic inspection required for welded parts is not required.
以下、本発明の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described below based on the drawings.
第１図は本発明の一実施例を示す要部断面図、第２図は
第１図のＣ部拡大断面図、第３図は第１図の熱交換器に
おける外管のリーク検査時の状態を示す説明回である。Fig. 1 is a cross-sectional view of a main part showing an embodiment of the present invention, Fig. 2 is an enlarged cross-sectional view of section C in Fig. 1, and Fig. 3 is a leakage test of the outer tube in the heat exchanger shown in Fig. 1. This is an explanation of the situation.
内管用出口管板８と外管用出口管板１０は中間フランジ
を介して接続されてリーク検出流体出ロブレムナ１７を
形成している。このフランジは、フランジの一部分を薄
＜シた上部フレキシブルフランジ２２ （第１のフラン
ジ）、Ｌ字型の中間フランジ２１、およびフランジの一
部を薄クシ、かつ上部フレキシブルフランジ２２とフラ
ンジ巾の異なる下部フレキシブルフランジ２３ （第２
のフランジ）より構成される。The outlet tube plate 8 for the inner tube and the outlet tube plate 10 for the outer tube are connected via an intermediate flange to form a leak detection fluid outlet lemna 17. This flange includes an upper flexible flange 22 (first flange) in which a part of the flange is thinly cut, an L-shaped intermediate flange 21, and a part of the flange is thinly combed, and has a different flange width from the upper flexible flange 22. Lower flexible flange 23 (second
flange).
上部フレキシブルフランジ２２と中間フランジ２１、下
部フレキシブルフランジ２３と中間フランジ２１との間
は、それぞれ１乃至複数個の上部ガスケット２４、ガス
ケット２５を上部ボルト２６、下部ボルト２７およびナ
ツト２８ａ、２８ｂで締付け、シールする構造になって
いる。Between the upper flexible flange 22 and the intermediate flange 21, and between the lower flexible flange 23 and the intermediate flange 21, one or more upper gaskets 24 and gaskets 25 are tightened with upper bolts 26, lower bolts 27, and nuts 28a and 28b, respectively. It has a sealing structure.
次に上記のように構成される二重伝熱管型熱交換器の作
用について説明する。Next, the operation of the double heat exchanger tube type heat exchanger configured as described above will be explained.
リーク検出流体出ロプレムナ１７は内管１２ａ内の水ま
たは蒸気により温度が低く、したがって第２図に示すよ
うに、リーク検出流体出ロプレムナ１７を貫通している
内管１２ａのリーク検出流体出ロブレムナ面間Ｌ１は運
転時Δβだけ伸びてＬ２となる。一方、中間フランジ２
１は温度が低いため、中間フランジ面間り、はほとんど
変化しない。そのため上部フレキシブルフランジ２２お
よび下部フレキシブルフランジ２３が各々点線２２ａ、
２３ａで示すように変形し、伸びを吸収できる構造とな
っている。これにより運転中には内管１２ａに熱膨張の
伸び差による大きな応力が発生しない。The temperature of the leak detection fluid outlet hole 17 is low due to the water or steam in the inner pipe 12a, so as shown in FIG. During operation, the interval L1 is extended by Δβ and becomes L2. On the other hand, intermediate flange 2
Since the temperature in No. 1 is low, there is almost no change in the distance between the intermediate flange surfaces. Therefore, the upper flexible flange 22 and the lower flexible flange 23 are respectively lined with dotted lines 22a,
As shown by 23a, it has a structure that can deform and absorb elongation. As a result, large stress due to the difference in thermal expansion is not generated in the inner tube 12a during operation.
また、万一、外管１２ｂが破損し、リーク検出流体出ロ
プレムナ１７でそれが検出された場合、破損した伝熱管
をプラグする必要がある。この場合どの伝熱管が調査す
るために、上部ボルト２６用のナツト２８ａおよび下部
ボルト２７用のナツト２８をゆるめ、中間フランジ２１
を上部フレキシブルフランジ２２および下部フレキシブ
ルフランジ２３から離脱可能とする０次に第３図に示す
ようた移動装置（図示せず）により中間フランジ２１を
上方へ移動させ、リーク検出流体出ロプレムナ１７内部
を点検し、破損した伝熱管を調査する。In addition, in the event that the outer tube 12b is damaged and this is detected by the leakage detection fluid outlet 17, it is necessary to plug the damaged heat transfer tube. In this case, in order to check which heat exchanger tube is connected, loosen the nut 28a for the upper bolt 26 and the nut 28 for the lower bolt 27, and
The intermediate flange 21 is moved upward by a moving device (not shown) as shown in FIG. Inspect and investigate damaged heat transfer tubes.
この場合、上部フレキシブルフランジ２２よりも下部フ
レキシブルフランジ２３は、そのフランジ幅が大きく、
かつ中間フランジ２１は断面り字状に構成されているの
で、中間フランジ２１を再度、上部フレキシブルフラン
ジ２２および下部フレキシブルフランジ２３間に装着す
る際、中間フランジ２１を下部フレキシブルフランジ２
３に載置した状態でボルト締め等の作業を行うことがで
き、作業が簡便化される。In this case, the lower flexible flange 23 has a larger flange width than the upper flexible flange 22,
In addition, since the intermediate flange 21 has a cross-sectional shape, when installing the intermediate flange 21 again between the upper flexible flange 22 and the lower flexible flange 23, the intermediate flange 21 is attached to the lower flexible flange 2.
Work such as bolt tightening can be performed while the workpiece is placed on the workpiece 3, which simplifies the work.
上記した実施例においては、従来のリーク検出流体出ロ
プレムナ胴板４１が廃止され、鏡２、内管用出口間板８
などから成る境部と胴体部分は、フランジ構造により接
続され、したがって溶接部がなく別々のコンポーネント
となるため（１） 鏡２、内管用出口管板８などから
成る鏡部は胴体部分とは別に、平行して製作することが
可能となり、熱交換器製作の最終組立段階で胴体１と一
体となった内管１２ａに内管用出口管板８を押入し、組
立てることができるために、製作工期の大幅な短縮と製
作工数の低減が可能となる。In the embodiment described above, the conventional leak detection fluid outlet plate 41 is abolished, and the mirror 2 and inner tube outlet plate 8 are removed.
The boundary part consisting of the mirror 2, the outlet tube plate 8 for the inner tube, etc. and the body part are connected by a flange structure, and therefore are separate components without any welding parts. , it becomes possible to manufacture the heat exchanger in parallel, and in the final assembly stage of heat exchanger manufacture, the outlet tube plate 8 for the inner tube can be pushed into the inner tube 12a integrated with the body 1 and assembled, so the manufacturing time is reduced. This enables a significant reduction in time and manufacturing man-hours.
（２） リーク検出流体出ロプレムナ胴体４１と内管
用出口管板８、外管用管出口管板１０の溶接部４２がな
くなり、実施困難であった放射ｖＡ遇通過検査不要とな
る。(2) The welding part 42 between the leak detection fluid outlet loop body 41, the inner tube outlet tube plate 8, and the outer tube outlet tube plate 10 is eliminated, and the radiation vA passing inspection, which was difficult to implement, is no longer necessary.
以上のように本発明によれば、以下の効果を有する。 As described above, the present invention has the following effects.
１）リーク検出用の空間部の側面部には内管と管板面間
の熱膨張による伸び差を吸収可能なフランジを有してい
るので、内管の熱応力が大幅に低減される。1) Since the side surface of the leak detection space has a flange capable of absorbing the difference in elongation due to thermal expansion between the inner tube and the tube sheet surface, thermal stress in the inner tube is significantly reduced.
２）中間フランジを着脱自在に装着しているので、中間
フランジを離脱させることによりリーク検出用の空間部
の側面部が開放され、破損した外管の探査が容易となる
。2) Since the intermediate flange is detachably attached, removing the intermediate flange opens the side surface of the leak detection space, making it easy to search for a damaged outer tube.
３）リーク検出用の空間部を溶接により胴体部と鏡部と
接続する必要がないので、胴体部と鏡部の製作を別個に
平行して行うことができ、製作工期の大幅な短縮と製作
工数の低減が可能となる。3) Since there is no need to connect the space for leak detection with the body and mirror by welding, the body and mirror can be manufactured separately and in parallel, significantly shortening the manufacturing period and reducing production time. It is possible to reduce the number of man-hours.
４）従来のリーク検出用の空間部（リーク検出流量出口
プレナム）の胴体と内管用出口管板および外管用出口管
板との溶接部を要しないので、放射線透過検査が不要と
なる。4) Since there is no need for welding between the body of the conventional leak detection space (leak detection flow rate outlet plenum) and the outlet tube sheet for the inner tube and the outlet tube sheet for the outer tube, radiographic inspection is not required.
第１図は本発明の一実施例を示す要部断面図、第２図は
第１図のＣ部拡大断面図、第３図は第１図の熱交換器に
おける外管のリーク検査時の状態を示す説明図、第４図
は従来の二重伝熱管型熱交換器の全体構成図、第５図は
第４図のＡ部拡大断面図、第６図は第５図のＢ−Ｂ線断
面図、第７図は第４図に示す二重伝熱管型熱交換器の要
部だめ、第８図は第４図に示す二重伝熱管型熱交換器に
おける内管のリーク検査時の状態を示す説明図である。
１・・・・・・胴体、２・・・・・・鏡、８・・・・・
・内管用出口管板、１０・・・・・・外管用出口管板、
１１・・・・・・アクセルホール用ノズル、１２ａ・・
・・・・内管、１２ｂ・・・・・・外管、１３・・・・
・・胴ブレムナ、１４・・・・・・水入口ブレナム、１
５・・・・・・水出ロブレムナ、１７・・・・・・リー
ク検出流体出ロブレムナ、１８・・・・・・アクセルホ
ール閉止板、２１・・・・・・中間フランジ、２２・・
・・・・上部フレキシブルフランジ（第１のフランジ）
、２３・・・・・・下部フレキシブルフランジ（第２の
フランジ）、２４・・・・・・上部ガスケット、２５・
・・・・・下部ガスケット。
代理人 弁理士 西 元 勝 −
１２Ｇ ＋２ｂ
１ど（ｌ Ｉ？Ｄ
手続ネ甫正書
昭和６２年１０月１５日Fig. 1 is a cross-sectional view of a main part showing an embodiment of the present invention, Fig. 2 is an enlarged cross-sectional view of section C in Fig. 1, and Fig. 3 is a leakage test of the outer tube in the heat exchanger shown in Fig. 1. An explanatory diagram showing the state, Fig. 4 is an overall configuration diagram of a conventional double heat exchanger tube type heat exchanger, Fig. 5 is an enlarged sectional view of section A in Fig. 4, and Fig. 6 is a line taken along B-B in Fig. 5. Line sectional view, Figure 7 shows the main parts of the double heat exchanger tube type heat exchanger shown in Figure 4, and Figure 8 shows a leak test of the inner tube of the double heat exchanger tube type heat exchanger shown in Figure 4. It is an explanatory view showing a state. 1...Torso, 2...Mirror, 8...
・Outlet tube plate for inner tube, 10... Outlet tube plate for outer tube,
11...Accelerator hole nozzle, 12a...
...Inner pipe, 12b...Outer pipe, 13...
...Torso Bremna, 14...Water inlet Blenheim, 1
5... Water output Loblemna, 17... Leak detection fluid output Loblemna, 18... Accelerator hole closing plate, 21... Intermediate flange, 22...
...Top flexible flange (first flange)
, 23... lower flexible flange (second flange), 24... upper gasket, 25...
...Lower gasket. Agent Patent Attorney Masaru Nishimoto - 12G +2b 1do(l I?D Procedures Booklet October 15, 1986)
Claims (2)
口管板によりリーク検出用の空間部が区画され、内管お
よび外管からなる二重管が胴体内に多数配列されると共
に内管は前記リーク検出用空間部を貫通して内管用出口
管板にその開口部が配置され、外管はその開口部が前記
外管用出口管板を介して前記リーク検出用の空間部に配
置された二重伝熱管型熱交換器において、前記リーク検
出用の空間部の側面部が前記内管用出口管板から外側に
延設された第１のフランジと、前記外管用出口管板から
外側に延設された第２のフランジと、第１のフランジと
第２のフランジとの間に着脱可能に装荷された中間フラ
ンジとを備え、第１のフランジと第２のフランジはそれ
ぞれ前記管板間に生じる熱応力による伸び等に応じて変
形可能なフランジ厚みを有することを特徴とする二重伝
熱管型熱交換器。(1) A space for leak detection is defined between the body and the mirror by an outlet tube plate for the inner tube and an outlet tube plate for the outer tube, and a large number of double tubes consisting of inner tubes and outer tubes are arranged in the body. At the same time, the inner tube passes through the leak detection space and has its opening disposed in the inner tube outlet tube plate, and the outer tube has its opening inserted into the leak detection space through the outer tube outlet tube plate. In the double heat exchanger tube type heat exchanger arranged in and an intermediate flange removably loaded between the first flange and the second flange, wherein the first flange and the second flange are respectively provided with the A double heat exchanger tube type heat exchanger characterized by having a flange thickness that can be deformed according to elongation due to thermal stress generated between tube sheets.
に異なるフランジ幅を有し、前記中間フランジが断面Ｌ
字状の構造を有することを特徴とする特許請求の範囲第
（１）項記載の二重伝伝熱管型熱交換器。(2) The first flange and the second flange have different flange widths, and the intermediate flange has a cross section L
The double heat exchanger tube type heat exchanger according to claim 1, characterized in that it has a letter-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62117678A JP2515120B2 (en) | 1987-05-14 | 1987-05-14 | Double heat transfer tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62117678A JP2515120B2 (en) | 1987-05-14 | 1987-05-14 | Double heat transfer tube heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63282493A true JPS63282493A (en) | 1988-11-18 |
| JP2515120B2 JP2515120B2 (en) | 1996-07-10 |
Family
ID=14717581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62117678A Expired - Fee Related JP2515120B2 (en) | 1987-05-14 | 1987-05-14 | Double heat transfer tube heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2515120B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5785114A (en) * | 1996-02-23 | 1998-07-28 | Westinghouse Electric Corporation | Integral hydrogen cooler assembly for electric generators |
| JP2000266494A (en) * | 1999-03-17 | 2000-09-29 | Usui Internatl Ind Co Ltd | Multitubular heat exchanger |
| JP2015502516A (en) * | 2011-12-22 | 2015-01-22 | テトラ・ラヴァル・ホールディングス・アンド・ファイナンス・ソシエテ・アノニムＴｅｔｒａ Ｌａｖａｌ Ｈｏｌｄｉｎｇｓ ＆ Ｆｉｎａｎｃｅ Ｓ．Ａ． | Coil type heat exchanger |
-
1987
- 1987-05-14 JP JP62117678A patent/JP2515120B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5785114A (en) * | 1996-02-23 | 1998-07-28 | Westinghouse Electric Corporation | Integral hydrogen cooler assembly for electric generators |
| JP2000266494A (en) * | 1999-03-17 | 2000-09-29 | Usui Internatl Ind Co Ltd | Multitubular heat exchanger |
| JP2015502516A (en) * | 2011-12-22 | 2015-01-22 | テトラ・ラヴァル・ホールディングス・アンド・ファイナンス・ソシエテ・アノニムＴｅｔｒａ Ｌａｖａｌ Ｈｏｌｄｉｎｇｓ ＆ Ｆｉｎａｎｃｅ Ｓ．Ａ． | Coil type heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2515120B2 (en) | 1996-07-10 |
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