JPH02171595A - Heat transfer pipe - Google Patents
Heat transfer pipeInfo
- Publication number
- JPH02171595A JPH02171595A JP32615488A JP32615488A JPH02171595A JP H02171595 A JPH02171595 A JP H02171595A JP 32615488 A JP32615488 A JP 32615488A JP 32615488 A JP32615488 A JP 32615488A JP H02171595 A JPH02171595 A JP H02171595A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- tube
- heat exchanger
- steam generator
- heat transfer
- 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
- 239000002184 metal Substances 0.000 abstract description 5
- 239000002826 coolant Substances 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
- F28D7/106—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/003—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by using permeable mass, perforated or porous materials
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
本発明は例えば高速増殖炉発電プラントの蒸気発生器な
どに用いられる伝熱管に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a heat exchanger tube used, for example, in a steam generator of a fast breeder reactor power plant.
（従来の技術）
高速増殖炉発電プラントの蒸気発生器は、中間熱交換器
からの二次冷却材と水とを熱交換させて蒸気を発生させ
るものであり、一般に第５図に示すような構造となって
いる。同図において、１は中間部にベローズ２を介在さ
せた外胴であって、この外胴１の内部には多数の伝熱管
３が収容されている。これらの伝熱管３は第６図及び第
７図に示すように外管４と内管５とからなる二重管構造
となっており、外管４の外側を二次冷却材が流通し、内
管５の内側を水が流通するようになっている。(Prior art) A steam generator in a fast breeder reactor power plant generates steam by exchanging heat between the secondary coolant and water from an intermediate heat exchanger, and generally uses a steam generator as shown in Figure 5. It has a structure. In the figure, reference numeral 1 denotes an outer shell with a bellows 2 interposed in the middle, and a large number of heat exchanger tubes 3 are housed inside the outer shell 1. As shown in FIGS. 6 and 7, these heat transfer tubes 3 have a double tube structure consisting of an outer tube 4 and an inner tube 5, and a secondary coolant flows through the outside of the outer tube 4. Water is allowed to flow inside the inner tube 5.
すなわち、前記外胴１の上部には二次冷却材流入口６が
設けられ、この二次冷却材流入口６より外胴１内に流入
した二次冷却材は外管４の外側を通って外胴１の下部に
設けられた二次冷却材流出ロアより流出するようになっ
ている。また、外胴１の下端には水流人口８が設けられ
、この水流人口８より外胴１内に流入した水は内管５の
内側を通って外胴１の上端に設けられた蒸気流出口９よ
り流出するようになっている。That is, a secondary coolant inlet 6 is provided in the upper part of the outer shell 1, and the secondary coolant that flows into the outer shell 1 from the secondary coolant inlet 6 passes through the outside of the outer tube 4. The secondary coolant flows out from a secondary coolant outflow lower provided at the lower part of the outer shell 1. Further, a water flow port 8 is provided at the lower end of the outer shell 1, and water flowing into the outer shell 1 from the water flow flow port 8 passes through the inside of the inner pipe 5 and is passed through a steam outlet provided at the upper end of the outer shell 1. It starts to flow from 9.
前記伝熱管３は第１ないし第４の管板ｔｏ、 １１゜１
２、１３に保持されており、第１管板ｌＯと第２管板１
１との間および第３管板１２と第４管板１３との間には
、外管４と内管５との間隙部を介して互いに連通した中
間ブレナム１４．１５が形成されている。これらの中間
ブレナム１４．１５は外胴１に設けられたリーク検出ノ
ズルｌ（ｉ、 １７を通じて伝熱管３の破損を検知する
ためのもので、例えば外管４が破損した場合には中間ブ
レナム１４．１５内に封入された不活性ガスのガス圧が
低下することにより外管４の破損を検知できるようにな
っている。また、内管５が破損した場合には内管５の内
側を流通する水又は蒸気が中間ブレナム１４．１５に漏
洩することにより内管５の破損を検知できるようになっ
ている。The heat exchanger tube 3 has the first to fourth tube plates to, 11°1
2, 13, the first tube sheet lO and the second tube sheet 1
1 and between the third tube sheet 12 and the fourth tube sheet 13, intermediate brenums 14 and 15 are formed which communicate with each other via the gap between the outer tube 4 and the inner tube 5. These intermediate brenums 14 and 15 are used to detect damage to the heat transfer tubes 3 through leak detection nozzles l (i, 17) provided on the outer shell 1. For example, if the outer tube 4 is damaged, the intermediate blenums 14 and Damage to the outer tube 4 can be detected by lowering the gas pressure of the inert gas sealed in the inner tube 5.Furthermore, if the inner tube 5 is damaged, the flow inside the inner tube 5 is detected. Breakage of the inner tube 5 can be detected by leakage of water or steam into the intermediate blemish 14,15.
なお、図中１８は二次冷却材人口ブレナム、１９は二次
冷却材出口ブレナム、２０は水入口ブレナム、２Ｉは蒸
気出口ブレナムである。また、２２は外管４と内管５と
の間隙部に設けられた多孔質金属である。In the figure, 18 is a secondary coolant population blemish, 19 is a secondary coolant outlet blemish, 20 is a water inlet blemish, and 2I is a steam outlet blemish. Further, 22 is a porous metal provided in the gap between the outer tube 4 and the inner tube 5.
ところで、このような蒸気発生器を製作する場合には、
まず第８図に示すように予め所定位置に配置された第１
ないし第４管板１０〜１３に伝熱管３を１本ずつ挿入し
ていき、第６図に示すように外管４を第２管板１１およ
び第３管仮１２に溶接接合し、また内管５と第１管板Ｉ
Ｏおよび第４管板１３に溶接接合する必要がある。この
場合、外管４と内管５との間隙部を中間ブレナム１４．
１５と連通させる必要があるため、従来の伝熱管３は第
６図に示した内管５の両端部が露出した構造となってい
る。したがって、このような伝熱管３を例えば第４管板
１３側より挿入する場合には、第９図（ａ）に示すよう
に第４管板１３に外管４が挿通する程度の孔２３を形成
しておき、同図（ｂ）に示すように伝熱管３を挿入した
後に上記孔２３と内管５との間に外管４と略同じ径のス
リーブ２３を挿入する必要がある。By the way, when manufacturing such a steam generator,
First, as shown in FIG. 8, the first
The heat exchanger tubes 3 are inserted into the fourth tube sheets 10 to 13 one by one, and the outer tube 4 is welded to the second tube sheet 11 and the third temporary tube 12 as shown in FIG. Tube 5 and first tube plate I
It is necessary to weld and join the tube plate O and the fourth tube sheet 13. In this case, the gap between the outer tube 4 and the inner tube 5 is connected to the intermediate blemish 14.
15, the conventional heat exchanger tube 3 has a structure in which both ends of the inner tube 5 shown in FIG. 6 are exposed. Therefore, when inserting such a heat exchanger tube 3 from the fourth tube sheet 13 side, for example, as shown in FIG. It is necessary to insert the sleeve 23 having approximately the same diameter as the outer tube 4 between the hole 23 and the inner tube 5 after the heat transfer tube 3 is inserted as shown in FIG.
このため、従来においては蒸気発生器を製作する際に多
数のスリーブ２４を必要とし、経済的に不利となる問題
があった。For this reason, in the past, a large number of sleeves 24 were required when manufacturing a steam generator, which was economically disadvantageous.
（発明が解決しようとする課題）
上述した如く、従来の伝熱管３は内管５の両端部が露出
した構造となっていたため、蒸気発生器を製作する際に
多数のスリーブ２４を必要とする問題があった。(Problems to be Solved by the Invention) As described above, the conventional heat transfer tube 3 has a structure in which both ends of the inner tube 5 are exposed, so a large number of sleeves 24 are required when manufacturing a steam generator. There was a problem.
本発明は上記のような問題点に鑑みてなされたものであ
り、その目的は蒸気発生器を製作する際に多数のスリー
ブを必要とせず、経済的に有利な蒸気発生器を得ること
ができる伝熱管を提供しようとするものである。The present invention has been made in view of the above-mentioned problems, and its purpose is to make it possible to obtain an economically advantageous steam generator without requiring a large number of sleeves when manufacturing a steam generator. The purpose is to provide heat exchanger tubes.
［発明の構成］
（課題を解決するための手段）
上記目的を達成するために本発明は、外管と内管とから
なる二重管構造の伝熱管であって、上記外管は所定位置
に外管の一部を削除した開口部を有し、上記内管はその
一端部又は両端部が上記外管によって被覆されているこ
とを特徴とするものである。[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention provides a heat transfer tube having a double tube structure consisting of an outer tube and an inner tube, wherein the outer tube is placed in a predetermined position. The inner tube has an opening formed by removing a portion of the outer tube, and one or both ends of the inner tube are covered with the outer tube.
（作 用）
本発明においては、内管はその一端部又は両端部が外管
によって被覆されているので、蒸気発生器を製作する際
に多数のスリーブが不要となる。(Function) In the present invention, since one or both ends of the inner tube are covered by the outer tube, a large number of sleeves are not required when manufacturing the steam generator.
（実施例）
第１図は本発明の第１実施例を示す伝熱管１００の断面
図であり、この伝熱管１００は外管１０１と内管１０２
とからなる二重管構造となっており、外管１０１は所定
位置に外管１０１の一部を削除した開口部１０３を白“
している。また、内管１０２はその一端部が外管ｌｏｔ
によって被覆されており、他端部のみが露出した構造と
なっている。なお、外管ｌ旧と内管１０２との間隙部に
は多孔質金属１０４が設けられている。(Embodiment) FIG. 1 is a sectional view of a heat exchanger tube 100 showing a first embodiment of the present invention, and this heat exchanger tube 100 has an outer tube 101 and an inner tube 102.
The outer tube 101 has an opening 103 in which a part of the outer tube 101 is removed in white.
are doing. Further, the inner tube 102 has one end connected to the outer tube lot.
The structure is such that only the other end is exposed. Note that a porous metal 104 is provided in the gap between the outer tube 1 and the inner tube 102.
第２図は上記のように構成される伝熱管１００を用いた
蒸気発生器の断面図で、第５図と同一部分には同一符号
を付し、その部分の説明は省略する。FIG. 2 is a cross-sectional view of a steam generator using the heat transfer tube 100 configured as described above, and the same parts as in FIG. 5 are given the same reference numerals, and the explanation of those parts will be omitted.
また、第３図は伝熱管１００を第１ないし第４管板１０
〜１３に挿入した状態を示す図で、同図に示すように本
実施例では内管１０２の一端部が外管１０１によって被
覆されているため、内管１０２が露出している部分を先
端として伝熱管１００を第１ないし第４管板ｌＯ〜１３
に挿入することにより、第９図に示したように第４管仮
１３に形成された孔２３と伝熱管との間にスリーブ２４
を挿入する必要がな（、スリーブ２４が不要となる。そ
して、伝熱管１００には外管１０１の一部を削除した開
口部１０３が所定位置に設けられているので、この開口
部１０３を通じて中間ブレナム１４．１５を連通させる
ことができる。In addition, FIG.
As shown in the figure, one end of the inner tube 102 is covered with the outer tube 101, so the exposed portion of the inner tube 102 is used as the tip. The heat exchanger tube 100 is connected to the first to fourth tube plates lO to 13
As shown in FIG.
There is no need to insert the sleeve 24. Also, since the heat transfer tube 100 is provided with an opening 103 in a predetermined position by removing a part of the outer tube 101, the intermediate Blenheim 14.15 can be communicated.
このように本実施例においては、内管１０２の一端部が
外管１０１によって被覆された伝熱管１００を用いて蒸
気発生器を製作するすることにより、多数のスリーブ２
４が不要となり、経済的に有利な蒸気発生器を得ること
ができる。As described above, in this embodiment, by manufacturing a steam generator using the heat transfer tube 100 in which one end of the inner tube 102 is covered with the outer tube 101, a large number of sleeves 2
4 becomes unnecessary, and an economically advantageous steam generator can be obtained.
なお、本発明は上記実施例に限定されるものではない。Note that the present invention is not limited to the above embodiments.
例えば、上記実施例では内管１０２の一端部のみを外管
１０１で被覆したが、第４図に示すように内管１０２の
両端部を外管＋０１で被覆してもよい。また、前記第１
実施例では外管１０１と内管１０２との間隙部に多孔質
金属１０４を設けたが、必ずしも多孔質金属１０４を設
ける必要はない。さらに、本発明による伝熱管は蒸気発
生器に限らず、熱交換器一般に適用できるものである。For example, in the above embodiment, only one end of the inner tube 102 is covered with the outer tube 101, but both ends of the inner tube 102 may be covered with the outer tube +01 as shown in FIG. In addition, the first
In the embodiment, the porous metal 104 is provided in the gap between the outer tube 101 and the inner tube 102, but the porous metal 104 does not necessarily need to be provided. Furthermore, the heat exchanger tube according to the present invention is applicable not only to steam generators but also to heat exchangers in general.
以上説明したように本発明は、外管と内管とからなる二
重管構造の伝熱管であって、上記外管は所定位置に外管
の一部を削除した開口部を有し、上記内管はその一端部
又は両端部が上記外管によって被覆されているものであ
る。したがって、蒸気発生器を製作する際に多数のスリ
ーブを必要とせず、経済的に有利な蒸気発生器を得るこ
とができる。As explained above, the present invention provides a heat transfer tube having a double tube structure consisting of an outer tube and an inner tube, wherein the outer tube has an opening at a predetermined position by removing a part of the outer tube, and The inner tube has one end or both ends covered by the outer tube. Therefore, it is possible to obtain an economically advantageous steam generator without requiring a large number of sleeves when manufacturing the steam generator.
第１図は本発明の第１実施例を示す伝熱管の断面図、第
２図は同実施例の伝熱管を用いた蒸気発生器の断面図、
第３図は同実施例の伝熱管を蒸気発生器の管仮に挿入し
た状態を示す図、第４図は本発明の第２実施例を示す伝
熱管の断面図、第５図ないし第９図は従来技術を説明す
るためのもので、第５図は蒸気発生器の断面図、第６図
は伝熱管の断面図、第７図は伝熱管の斜視図、第８図は
伝熱管を管板に挿入する方法を示す図、第９図（ａ）は
伝熱管を管仮に挿入した直後の状態を示す図、同図（ｂ
）は伝熱管と管板との間にスリーブを挿入した状態を示
す図である。
１・・・外胴、２・・・ベローズ、６・・・二次冷却材
流入口、７・・・二次冷却材流出口、８・・・水流入口
、９・・・蒸気流出口、１０．１１．１２．１３・・・
管板、１４．１５・・・中間プレナム、１６．１７・・
・リーク検出ノズル、１Ｂ・・・二次冷却材入口プレナ
ム、１９・・・二次冷却材出口プレナム、２０・・・水
入口ブレナム、２１・・・蒸気出口ブレナム、１００・
・・伝熱管、１０１・・・外管、１０２・・・内管。
出願人代理人 弁理士 鈴江武彦
第 １−
粥
図
Ｈも
図
郵゛： ３ 図
第
図
第
図
（ａ）
濱
図
第
図
（ｂ）FIG. 1 is a sectional view of a heat exchanger tube showing a first embodiment of the present invention, and FIG. 2 is a sectional view of a steam generator using the heat exchanger tube of the same embodiment.
FIG. 3 is a diagram showing a state in which the heat transfer tube of the same embodiment is temporarily inserted into a steam generator, FIG. 4 is a sectional view of the heat transfer tube showing the second embodiment of the present invention, and FIGS. 5 to 9 5 is a cross-sectional view of a steam generator, FIG. 6 is a cross-sectional view of a heat exchanger tube, FIG. 7 is a perspective view of a heat exchanger tube, and FIG. 8 is a cross-sectional view of a heat exchanger tube. Figure 9 (a) is a diagram showing how to insert the heat exchanger tube into the plate, and Figure 9 (b) is a diagram showing the state immediately after the tube is temporarily inserted.
) is a diagram showing a state in which a sleeve is inserted between a heat exchanger tube and a tube sheet. DESCRIPTION OF SYMBOLS 1... Outer shell, 2... Bellows, 6... Secondary coolant inlet, 7... Secondary coolant outlet, 8... Water inlet, 9... Steam outlet, 10.11.12.13...
Tube plate, 14.15... Intermediate plenum, 16.17...
・Leak detection nozzle, 1B...Secondary coolant inlet plenum, 19...Secondary coolant outlet plenum, 20...Water inlet blennium, 21...Steam outlet plenum, 100...
...heat exchanger tube, 101...outer tube, 102...inner tube. Applicant's representative Patent attorney Takehiko Suzue No. 1 - Congee map H is also shown in Figure 3.
Claims (1)
記外管は所定位置に外管の一部を削除した開口部を有し
、上記内管はその一端部又は両端部が上記外管によって
被覆されていることを特徴とする伝熱管。A heat transfer tube with a double tube structure consisting of an outer tube and an inner tube, the outer tube having an opening at a predetermined position by removing a part of the outer tube, and the inner tube having one end or both ends thereof. A heat exchanger tube characterized in that is covered by the outer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32615488A JPH02171595A (en) | 1988-12-26 | 1988-12-26 | Heat transfer pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32615488A JPH02171595A (en) | 1988-12-26 | 1988-12-26 | Heat transfer pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02171595A true JPH02171595A (en) | 1990-07-03 |
Family
ID=18184655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32615488A Pending JPH02171595A (en) | 1988-12-26 | 1988-12-26 | Heat transfer pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02171595A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5766393A (en) * | 1980-10-09 | 1982-04-22 | Hitachi Ltd | Atomic power plant |
| JPS57157996A (en) * | 1981-03-26 | 1982-09-29 | Babcock Hitachi Kk | Heat exchanger that has leak detecting mechanism |
| JPS63247502A (en) * | 1987-03-31 | 1988-10-14 | 株式会社東芝 | Heat transfer tube |
-
1988
- 1988-12-26 JP JP32615488A patent/JPH02171595A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5766393A (en) * | 1980-10-09 | 1982-04-22 | Hitachi Ltd | Atomic power plant |
| JPS57157996A (en) * | 1981-03-26 | 1982-09-29 | Babcock Hitachi Kk | Heat exchanger that has leak detecting mechanism |
| JPS63247502A (en) * | 1987-03-31 | 1988-10-14 | 株式会社東芝 | Heat transfer tube |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4249593A (en) | Heat exchanger with leak detecting double wall tubes | |
| JPH02171595A (en) | Heat transfer pipe | |
| JPS57193248A (en) | Forming method of solar heat collector | |
| ES8503429A1 (en) | Heat exchangers and methods of construction thereof. | |
| MXPA04000027A (en) | Unitary body quadrilateral header for heat exchanger. | |
| ES288847Y (en) | HEAT CHANGER WITH A BEAM OF TUBES ARRANGED IN A CAR-HOUSE | |
| JP3099971B2 (en) | Double tube steam generator | |
| GB1101772A (en) | Improvements in or relating to heat exchangers | |
| JPH0240958B2 (en) | ||
| GB2082750A (en) | Thermal Shield Plate Construction for Heat Exchanger | |
| JPH043893A (en) | Heat exchanger | |
| JPH05118774A (en) | Laminated heat exchanger | |
| JPH029272Y2 (en) | ||
| JPS5947838B2 (en) | Heat exchanger | |
| JPS60243494A (en) | Heat exchanger | |
| JP2561933Y2 (en) | Economizer | |
| JPS5913560Y2 (en) | Header tubes in solar collectors | |
| JPH0740801Y2 (en) | Steam generator | |
| JPS5929799B2 (en) | Heat exchanger | |
| JPH10170181A (en) | Tube plate structure of heat exchanger using double wall heat exchanger tube | |
| JPS61285390A (en) | Heat exchanger | |
| JPS62116896A (en) | Double pipe steam generator | |
| JPS62166290A (en) | Double heat transfer tube type once-through heat exchanger | |
| JPS5952197A (en) | Heat exchanger | |
| JPS63204001A (en) | Heat exchanger |