JP2004279060A - Cooling panel with header tube and method of manufacturing it - Google Patents

Cooling panel with header tube and method of manufacturing it Download PDF

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JP2004279060A
JP2004279060A JP2003067113A JP2003067113A JP2004279060A JP 2004279060 A JP2004279060 A JP 2004279060A JP 2003067113 A JP2003067113 A JP 2003067113A JP 2003067113 A JP2003067113 A JP 2003067113A JP 2004279060 A JP2004279060 A JP 2004279060A
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cooling panel
pipe
rod
header
intermediate block
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JP3580425B2 (en
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Shinichi Sato
真一 佐藤
Seiji Mori
清治 森
Toshio Osaki
敏雄 大崎
Kensuke Mori
憲介 毛利
Hideo Ise
英夫 伊勢
Toshikatsu Ishida
敏勝 石田
Yasunobu Nomoto
恭信 野本
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Kawasaki Heavy Industries Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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    • Y02E30/10—Nuclear fusion reactors

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Abstract

<P>PROBLEM TO BE SOLVED: To secure the integrity of a pressure-proof boundary by substantially decreasing the man-hours in the installation work of a header tube for feeding a cooling medium to a cooling panel placed in a structure in a nuclear fusion reactor or a tube gathering member for draining the cooling medium. <P>SOLUTION: A flow channel hole 19 is formed through a hole working by bringing a horizontal plane 11 a step section of an intermediate block member 10 formed separately into contact with an end in an axial direction of a tentatively assembled cooling panel 1, temporarily bonding the periphery of the contact surface through a seal welding, fitting a bar-shaped member 14 where a groove 13 into which the member 10 can be fitted is made into the member 10, temporarily bonding the periphery of the fitting section through the seal welding and carrying out the junction of the tentatively assembled cooling panel 1 and that for installing the bar-shaped member 14 at the same time through a single hot isostatic pressurizing process. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【産業上の利用分野】
この発明は、核融合炉の炉内構造物、即ちブランケット、リミター、ダイバータなどの高熱負荷機器などに設けられる高温物質を冷却する冷却パネルの構造およびその冷却パネルの製作方法に関するもので、殊に冷却パネルに水などの冷却媒体を給水するヘッダー管（管寄せ管）あるいは給水された水などの冷却媒体を排水させる管寄せ部材を取付けるのに、冷却パネルの接合と冷却パネルへのヘッダー管あるいは管寄せ部材の取付けとを同時に熱間静水圧加圧処理できるようにすることである。
【０００２】
【従来の技術】
核融合炉の炉内構造物、即ちブランケット、リミター、ダイバータなどに用いられる炉内高温物質を冷却する冷却パネルは、高熱負荷や中性子の照射影響などを頻繁に受けるために厳しい製作精度や設置精度が要求される。このような条件下において用いる冷却パネルは、この冷却パネルを構成する冷却媒体が流れる流路管とこれら流路管を囲む平板とを接合するのに、ＴＩＧ溶接などの溶融溶接を用いる場合、その溶接金属部分の近傍に溶接金属と平板や流路管との材質の異なること及び構造不連続の影響による割れ、亀裂などの欠陥が発生する恐れがあるために、従来は溶接接合ではなく熱間静水圧加圧法によって接合処理を行うようにしている（例えば特開平１０−５４６８８号公報である）（図５参照）。
ところが、この熱間静水圧加圧処理によって製作された上記冷却パネルには、冷却パネル内に設けられたそれぞれの流路管に水などの冷却媒体を給水するヘッダー管やその給水された冷却媒体を排水するための管寄せ部材を設ける必要がある。
【０００３】
このヘッダー管や管寄せ部材としては、従来、耐圧強度が高い中空円筒形のパイプが使用されており、これらを冷却パネルに取付けるのに、ヘッダー管や管寄せ部材に設けられた穴を冷却パネルの軸方向端部に填め込んで、この填め込み部分の冷却パネルとヘッダー管あるいは管寄せ部材との接触面をＴＩＧ溶接などで溶接して取付けるようにしている（図６参照）。
しかし、上記ヘッダー管あるいは管寄せ部材は冷却パネルに溶接される際に、その溶接中に熱間静水圧加圧処理によって予め製作された冷却パネルの流路管と平板との接合部（接触面）に過大な収縮力が発生し、このため流路管と平板とが剥離する懸念がある。
【０００４】
また、１つのヘッダー管或いは管寄せ部材には、複数個の冷却パネルが溶接により取付けられるので、隣り合う冷却パネルの溶接部との距離が近くなり、そのため熱影響部が互いにラップする。この熱的影響が冷却パネルの耐圧バウンダリの健全性を損なう恐れがある。
さらに、上記冷却パネルには、ヘッダー管および管寄せ部材をＴＩＧ溶接などで完全に溶け込ませるように溶接してあるので、その溶接による溶着量が多く、冷却パネルとヘッダー管および管寄せ部材との溶接部における角変形が大きくなる。そのために核融合炉の炉内構造物に要求される厳しい製作精度を確保することが困難である。
【０００５】
【特許文献１】特開平１０−５４６８８号公報
【０００６】
【解決しようとする課題】
この発明は、上記従来技術の問題点を解消するべくなされたもので、核融合炉の炉内構造物内に設置される冷却パネルに冷却媒体を給水するヘッダー管あるいはその冷却媒体を排水する管寄せ部材を取付ける際、その冷却パネルとヘッダー管および管寄せ部材とのそれぞれの取付け部構造を工夫して、冷却パネルの接合及びヘッダー管と管寄せ部材の冷却パネルへの取付けを、熱間静水圧加圧法により同時処理することにより、取付け作業工数を大幅に低減し、かつ、製作された冷却パネルの耐圧バウンダリの健全性を確実に確保できるようにすることを、その課題とするものである。
【０００７】
【課題解決のために講じた手段】
【解決手段１】
上記課題を解決するために講じた手段１は、複数の矩形流路管を複数本並列に並べ断面が矩形形状になるように周囲を平板で囲んだ冷却パネルにヘッダー管を設けた、ヘッダー管付冷却パネルの製作方法を前提として、次の（イ）〜（ヘ）によって構成されるものである。
（イ）上記矩形流路管の軸方向の両端部と表裏平板との接触面の周囲、及び、表裏平板と脱気パイプを取付けた側平板との突き合わせ接触面の周囲をシール溶接して冷却パネルを仮組したこと、
（ロ）上記仮組冷却パネルの軸方向端部に、この仮組冷却パネルの矩形流路管内に圧力を加えるための通気孔およびこの通気孔に接続する通気パイプを設けた中間ブロック部材の段部水平面を当接し、その当接面の周囲をシール溶接して仮付けしたこと、
（ハ）上記中間ブロック部材を棒状部材に設けた溝に嵌合し、その嵌合部の接触面の周囲をシール溶接して仮付けしたこと、
（ニ）上記棒状部材の端部に上記通気パイプが貫通する孔および溝内の脱気をする脱気パイプを設けた平板状蓋板を当接し、当該平板状蓋板の周囲をシール溶接して仮付けしたこと、
（ホ）上記各々の脱気パイプを介して仮組冷却パネル内および上記溝内の脱気をして真空封止し、
上記冷却パネルの矩形流路管と表裏平板及び側平板との接触面、表裏平板及び側平板と中間ブロック部材との接触面、中間ブロック部材と棒状部材との接触面、棒状部材と平板状蓋板との接触面を同時に熱間静水圧加圧処理により拡散接合したこと、
（ヘ）上記拡散接合後に、上記棒状部材に棒状部材と上記中間ブロック部材とを一緒に軸方向に孔加工して矩形流路管に給水する流路孔を設け、上記棒状部材をヘッダー管にすること。
【０００８】
【作用】
冷却パネルとヘッダー管とを取付ける際、仮組冷却パネルの軸方向端部に付設した中間ブロック部材を上記棒状部材の上記溝に嵌合させたことで、仮組冷却パネルの接合と、仮組冷却パネルへの棒状部材の接合とを、一回の熱間静水圧加圧法により同時に処理できる。したがって、製作工数が低減され、生産効率が向上する。
また、熱間静水圧加圧処理により製作された冷却パネルにヘッダー管を後から溶接して取付けるものでないから、冷却パネルの接合部、即ち溶接時に生じ易かった矩形流路管と平板との接合部に、過大な熱収縮荷重が発生することがない。したがって、接合部が剥離することはなく、接合部の健全性が確保される。
また、溶融溶接（ＴＩＧ溶接）を用いないため製作精度が高く、厳しい製作精度が要求される核融合炉、炉内機器への適用が可能である。
【０００９】
【解決手段２】
上記課題を解決するために講じた手段２は、複数の矩形流路管を複数本並列に並べ、断面が矩形形状になるように周囲を平板で囲んだ冷却パネルにヘッダー管および管寄せ部材を設けた、ヘッダー管および管寄せ部材付冷却パネルの製作方法を前提として、次の（イ）〜（ヘ）によって構成するものである。
（イ）上記矩形流路管の軸方向の両端部と表裏平板との接触面の周囲、及び、表裏平板と脱気パイプを取付けた側平板との突き合わせ接触面の周囲をシール溶接して冷却パネルを仮組したこと、
（ロ）上記仮組冷却パネルの軸方向端部に、この仮組冷却パネルの矩形流路管内に圧力を加えるための通気孔およびこの通気孔に接続する通気パイプを設けた中間ブロック部材の段部水平面を当接し、その当接面の周囲をシール溶接して仮付けし、
仮組冷却パネルの他方の軸方向端部に、通気孔と通気パイプを設けていない中間ブロック部材の段部水平面を当接し、その当接面の周囲をシール溶接して仮付けしたこと、
（ハ）上記通気孔および通気パイプを設けた中間ブロック部材と通気孔のない中間ブロック部材とを、棒状部材の溝に嵌合し、それら嵌合部の接触面の周囲をシール溶接して仮付けし、
上記通気孔および通気パイプを設けた中間ブロック部材を嵌合させた一方の棒状部材の端部に、上記通気パイプが貫通する孔と脱気パイプを設けた平板状蓋板を当接して、その当接面の周囲をシール溶接して仮付けしたこと、
（ニ）他方の棒状部材の端部に通気パイプが貫通する孔および脱気パイプのない平板状蓋板を当接して、その当接面の周囲をシール溶接して仮付けしたこと、
（ホ）上記両脱気パイプを介して仮組冷却パネル内および溝内の脱気をして真空封止し、
仮組冷却パネルの矩形流路管と表裏平板及び側平板との接触面、表裏平板及び側平板とそれぞれの中間ブロック部材との接触面、それぞれの中間ブロック部材と棒状部材との接触面、それぞれの棒状部材とそれぞれの平板状蓋板との接触面とを同時に熱間静水圧加圧処理により拡散接合したこと、
（ヘ）上記拡散接合後に、上記それぞれの棒状部材に軸方向に孔加工して、矩形流路管への給水又は排水をする流路孔をそれぞれ形成してヘッダー管と管寄せ部材とにすること。
【００１０】
【作用】
冷却パネルにヘッダー管と管寄せ部材とを取り付ける際、仮組冷却パネルのそれぞれの軸方向端部に仮付けした中間ブロック部材を棒状部材の溝に嵌合させたことで、仮組冷却パネルの接合とこの仮組冷却パネルへのヘッダー管および管寄せ部材にするそれぞれの棒状部材の取付けとが熱間静水圧加圧処理により同時にでき、これによって製作工数がいっそう低減されて生産効率が向上するものである。
また、熱間静水圧加圧処理により製作された冷却パネルにヘッダー管と管寄せ部材を後から溶接により取付けるものではないので、冷却パネルの接合部、即ち、溶接時に生じ易かった矩形流路管と平板との接合部への過大な熱収縮荷重が発生することがなくなり、接合部が剥離することがなく、接合部に対する健全性維持が容易に確保されるものである。
また、溶融溶接（ＴＩＧ溶接）を用いないため製作精度が高く、厳しい製作精度が要求される核融合炉、炉内機器への適用が可能である。
【００１１】
【解決手段３】
上記課題を解決するために講じた手段３は、ヘッダー管あるいは管寄せ部材を取付けた複数の矩形流路管で構成する冷却パネル構造を前提として、次の（イ）〜（ホ）によって構成するものである。
（イ）複数の矩形流路管を複数本並列に並べ、その表裏および両側面の周囲を平板で断面が矩形形状になるように囲んだ仮組冷却パネルの一方の軸方向端部に、通気孔およびその通気孔に接続する通気パイプを設けた中間ブロック部材を当接して、その当接面の周囲をシール溶接して仮付けし、
他方の軸方向端部に通気孔のない中間ブロック部材を当接して、その当接面の周囲をシール溶接して仮付けしたこと、
（ロ）上記それぞれの中間ブロック部材に、棒状部材に設けた溝を嵌合してその嵌合部の周囲をシール溶接して仮付けしたこと、
（ハ）上記棒状部材のうち、通気孔とこの通気孔に接続する通気パイプとを設けた中間ブロック部材を嵌合した棒状部材端部に、上記通気パイプが貫通する孔および溝内を脱気する脱気パイプを設けた平板状蓋板を当接して、当該平板状蓋板の周囲をシール溶接して仮付けし、
通気孔のない中間ブロック部材を嵌合した棒状部材端部に、通気孔や脱気パイプのない平板状蓋板を当接して、当該平板状蓋板の周囲をシール溶接して仮付けして、仮組冷却パネルを構成したこと、
（ニ）上記仮組冷却パネルを熱間静水圧加圧処理により矩形流路管と平板との接触面、平板同士の突き合わせ接触面、平板と各々の中間ブロック部材との接触面、平板とそれぞれの棒状部材との接触面、それぞれの中間ブロック部材とそれぞれの棒状部材との接触面とを熱間静水圧加圧処理により拡散接合したこと、
（ホ）上記各々の棒状部材の軸方向に孔加工して、上記矩形流路管への給水又は排水をする流路孔をそれぞれ設け、これら棒状部材をヘッダー管および管寄せ部材にしたことである。
【００１２】
【作用】
冷却パネル、ヘッダー管、管寄せ部材のそれぞれの接合部には、溶接箇所がないので、高温負荷や中性子などの照射による強い影響を受けても溶接部近傍に割れ、亀裂などが生じることがない。
【００１３】
【実施の形態】
この発明の核融合炉の炉内構造物である高熱負荷機器、例えばブランケットやダイバータあるいはリミターなどに設置するヘッダー管あるいは管寄せ部材付冷却パネルの製作方法について、図１〜図４を参照して以下に説明する。
この発明は、図５に示す従来の核融合炉の炉内構造物であるブランケットに設置される第一壁を熱間静水圧加圧処理により製作する方法と基本的には類似するものである。
この発明による高温物質を冷却するのに用いるヘッダー管あるいは管寄せ部材付冷却パネルは、ステンレス製で横断面が矩形形状になるように製作されるものである。この矩形形状の冷却パネルは、並列に並べられた複数の水などの冷却媒体を流す断面が矩形形状の矩形流路管を平板で囲んだもので、高さが略１０〜１５ｍｍ、幅が略５００ｍｍ、奥行きが略５００〜１０００ｍｍ程度のパネル構造にしたものである。
また、これらに用いられるそれぞれの板の肉厚は略１．５ｍｍ程度のものである。
この発明では、上記矩形形状の冷却パネルの製作と同時にヘッダー管４あるいは管寄せ部材５、ヘッダー管４と管寄せ部材５とを冷却パネルに冷却パネルの接合と同時に取付けられるようにしたもので、その製作は、以下のようにして行われる。
【００１４】
先ず、図１に示す実施例１についての製作方法について説明する。
このものは、仮組冷却パネル１に、ヘッダー管４あるいは管寄せ部材５を取付けるのに中間ブロック部材１０を仮組冷却パネル１の軸方向端部に取付け、この中間ブロック部材１０を取付けた構造にすることで、仮組冷却パネル１の接合と仮組冷却パネル１へのヘッダー管４あるいは管寄せ部材５の取付けを熱間静水圧加圧処理によって同時に行えるようにしたものである。
即ち、冷却パネルの仮組は、複数本の矩形流路管２を４枚の平板３で囲んだ断面を矩形形状にして、平板３と矩形流路管２との接触する軸方向端部、平板３の表裏平板６，７と両側平板８，８ａとの突き合わせ接触面をシール溶接して仮付けして製作される。
そして、この仮組冷却パネル１の側平板８には、この仮組冷却パネル１内の脱気をするための脱気パイプ９が仮付けされる。
この仮組された仮組冷却パネル１には、軸方向端部に中間ブロック部材１０が、その中間ブロック部材１０の段部水平面１１が重ねられ、その当接面の周囲をシール溶接して仮付けされる。
この仮組冷却パネル１の軸方向端部に仮付けされた中間ブロック部材１０には、仮組冷却パネル１内に加圧するための通気孔１２やこの通気孔１２に接続する通気パイプ１５が設けられている。
【００１５】
さらに、この仮組冷却パネル１の中間ブロック部材１０には、この中間ブロック部材１０が嵌合される片側端部の解放された溝１３を設けた棒状部材１４の溝１３を嵌合して、仮組冷却パネル１を構成する平板３と棒状部材１４の溝１３との接触面や中間ブロック部材１０と棒状部材１４との接触面の周囲をシール溶接することによって棒状部材１４が仮付けされる。
この棒状部材１４の仮付けにより、上記の中間ブロック部材１０に設られた通気パイプ１５は、棒状部材１４の端部外方に位置される。そして、この棒状部材１４の通気パイプ１５のある側の端部には、上記通気パイプ１５を通す孔１６を設けたシール用の平板状蓋板１７が通気パイプ１５を通して当接され、その当接された周囲をシール溶接して仮付けされる。しかも、この平板状蓋板１７には、棒状部材１４の溝１３内や平板状蓋板１７と棒状部材１４との接触面などを脱気する脱気パイプ２０が設けられている（図２参照）。
【００１６】
そして、棒状部材１４が仮付けされた仮組冷却パネル１は、真空状態にした熱間静水圧加圧装置内にセットされ、仮組冷却パネルの内部や棒状部材の溝内が上記の脱気パイプ９，２０を介して脱気されて真空封止される。この脱気された仮組冷却パネル１は、真空状態にされている装置内でほぼ１０００℃位まで温度上昇されると共にアルゴンガスなどの不活性ガス雰囲気の基にほぼ１５００Ｋｇｆ／ｃｍ２程度まで昇圧され、仮組冷却パネル１は、外側および矩形流路管内から加圧されて仮組冷却パネル１の矩形流路管２と平板３との接触面、平板３と中間ブロック部材１０との接触面、中間ブロック部材１０と棒状部材１４との接触面、棒状部材１４と平板状蓋板１７との接触面が拡散接合されるものである。
そして、拡散接合された冷却パネルに取付けられた棒状部材１４には、中間ブロック部材１０や平板状蓋板１７と一緒に軸方向に孔加工されて流路孔１９が設けられる。
しかも、この流路孔１９の設けられた棒状部材１４の端部には、蓋板１８が溶接にて取付けられ、ヘッダー管あるいは管寄せ部材に製作されるものである。
つまり、実施例１のものは、仮組冷却パネルに棒状部材を取付けるのに中間ブロック部材を用いたことで、仮組冷却パネルの接合と同時にヘッダー管あるいは管寄せ部材の冷却パネルへの取付けが熱間静水圧加圧処理により同時にできるようにできたものである。
【００１７】
上記実施例１のものは、冷却パネルの接合と同時に冷却パネルへのヘッダー管４あるいは管寄せ部材５の取付けを別々に行うようにしたものであるが、これら冷却パネルの接合と冷却パネルへのヘッダー管４と管寄せ部材５との取付けを同時に行うようにしても良い。
【００１８】
この製作方法について、実施例２について中間ブロック部材を用いたタイプを基にして説明する。
上記仮組冷却パネル１の一方の軸方向端部には、通気孔１２および通気パイプ１５が設けられている中間ブロック部材１０の段部水平面を当接して、その当接面の周囲を仮付けし、他方の軸方向端部には、通気孔をもたない中間ブロック部材を上記と同様な方法により仮付けする。これらの中間ブロック部材を上記棒状部材１４，１４の溝にそれぞれ嵌合し、その嵌合部の周囲をシール溶接して仮付けする（図示省略）。
そして、この両棒状部材端部には、シール用の平板状蓋板をそれぞれ仮付けする。勿論、上記中間ブロック部材１０が嵌合された棒状部材側の平板状蓋板１７には、仮組冷却パネル１内に圧力を与えるための通気パイプ１５を通す孔１６および脱気パイプ２０が設けられている。
【００１９】
このようにして、軸方向の両端部に棒状部材の仮付けされた仮組冷却パネル１は、熱間静水圧加圧装置内にセットされ、上記脱気パイプ９，２０によって仮組冷却パネル１内や棒状部材の溝１３内の脱気がなされ、真空封止される。
そして、上記それぞれの棒状部材１４が仮付けされた仮組冷却パネル１は、真空状態にされた熱間静水圧加圧装置内で、アルゴンガスなどの不活性ガスの雰囲気の基に上記と同様に略１０００℃位の温度まで昇温し、略１５００Ｋｇｆ／ｃｍ２程度の圧力まで昇圧され、仮組冷却パネル１は外側および矩形流路管２内から加圧されて平板３と矩形流路管２との接触面、平板３とそれぞれの中間ブロック部材１０との接触面、それぞれの中間ブロック部材１０とそれぞれの棒状部材１４との接触面、平板３とそれぞれの棒状部材１４との接触面が拡散接合される。
そして、接合された冷却パネルに取付けられたそれぞれの棒状部材１４には、上記と同様に中間ブロック部材と一緒に軸方向に孔加工されて流路孔１９がそれぞれ設けられる。
【００２０】
この流路孔１９の設けられたそれぞれの棒状部材１４の端部には、蓋板１８が溶接にて取付けられ、ヘッダー管および管寄せ部材が製作される。即ち、上記のヘッダー管および管寄せ部材付冷却パネルは、中間ブロック部材を用いることで、冷却パネルの接合と冷却パネルへのヘッダー管および管寄せ部材の取付けとを同時に行えるものにしたものである。
そして、冷却パネルにそれぞれ取付けられた棒状部材１４はその軸方向端部側から孔加工されて流路孔１９が設けられ、一方の棒状部材が水など冷却媒体を給水するヘッダー管４として用いられ、他方の棒状部材が冷却媒体を排水する管寄せ部材５として用いられる。
【００２１】
また、図４のものは、それぞれ管寄せ部材を取付けた２つの冷却パネルを１本のヘッダー管に取付け、ヘッダー管を１本のもので共有させるようにした他の例であり、上記と同様の方法によって冷却パネルの接合と冷却パネルへのヘッダー管と管寄せ部材との取付けが同時に行われるものである。
なお、ヘッダー管の大きさを選定することにより、取付けるパネルの数量は任意に設定可能である。
【００２２】
【効果】
冷却パネルにヘッダー管あるいは管寄せ部材を取付けるのに、予め仮組した仮組冷却パネルの軸方向端部に棒状部材に設けた溝を嵌合させ、あるいは、中間ブロック部材を仮組の冷却パネル軸方向端部に仮付けし、この中間ブロック部材を棒状部材に設けた溝に嵌合させるものであるから、仮組冷却パネルの接合とヘッダー管あるいは管寄せ部材の取付けとが一回の熱間静水圧加圧処理によって同時に行われる。これによって、ヘッダー管あるいは管寄せ部材の取付け作業時間が大幅に短縮され、作業効率が向上する。
また、予め熱間静水圧加圧処理によって接合された冷却パネルに、ヘッダー管あるいは管寄せ部材を後から溶接して取付けるものではないので、冷却パネルの接合部に過大な熱収縮荷重が負荷されることはなく、したがって、冷却パネルの接合部が剥離を生じることはない。
また、製作された冷却パネルには、溶接された溶着金属部分がないので高熱負荷や中性子の照射による強い影響を受けても、溶着金属部分に割れや亀裂などが生じるとこともない。
したがって、この発明によって製作されたヘッダー管あるいは管寄せ部材付の冷却パネルは、高熱負荷や中性子などから強い衝撃を受ける厳しい条件下での使用に対して充分な耐久性を有し、品質に対する信頼性が高い。さらに、全ての当接面の接合が同時に行われるので、製作工数が大幅に削減でき、生産コストが大幅に低減される。
【図面の簡単な説明】
【図１】（ａ）は、この発明の方法による中間ブロック部材を仮付けした仮組冷却パネルにヘッダー管になる棒状部材の溝を嵌合させる状態を示す概略斜視図であり、（ｂ）は、（ａ）のＸ−Ｘ部の概略縦断面図である。
【図２】（ａ）は、この発明の方法による仮組冷却パネルに仮付けした中間ブロック部材にヘッダー管になる棒状部材の溝を嵌合してその嵌合部の周囲をシール溶接し、その棒状部材端部に加圧用の通気パイプを通す孔と脱気パイプを設けた平板状蓋板を仮付けする状態を示す概略斜視図であり、（ｂ）は、（ａ）のＹ−Ｙ部の概略縦断面図である。
【図３】は、この発明による接合された冷却パネルのヘッダー管および管寄せ部材になる流路孔がそれぞれ設けられた棒状部材に蓋板を溶接により取付ける状態を示す概略斜視図である。
【図４】は、この発明によって製作されたヘッダー管を共通に用いるようにした管寄せ部材付冷却パネルの概略斜視図である。
【図５】（ａ）は、従来の核融合炉の炉内構造物であるブランケットに設けられる高温物質冷却用第一壁の熱間静水圧加圧処理前の概略縦断面図であり、（ｂ）は、熱間静水圧加圧処理により接合した後の第一壁の概略縦断面図である。
【図６】（ａ）は、従来の溶接による冷却パネルへのヘッダー管あるいは管寄せ部材の取付け状態を示す一部の概略横断面図であり、（ｂ）は、（ａ）のヘッダー管あるいは管寄せ部材を分割し、その分割された半部材を冷却パネルに溶接して取付け、その後残りの半分割部材を溶接する状態を示す概略横断面図である。
【符号の説明】
１：仮組冷却パネル
２：矩形流路管
３：平板
４：ヘッダー管
５：管寄せ部材
６：表平板
７：裏平板
８，８ａ：側平板
９：脱気パイプ
１０：中間ブロック部材
１１：段部水平面
１２：通気孔
１３：溝
１４：棒状部材
１５：通気パイプ
１６：孔
１７：平板状蓋板
１８：蓋板
１９：流路孔
２０：脱気パイプ[0001]
[Industrial applications]
The present invention relates to a structure of a cooling panel for cooling a high-temperature substance provided in a furnace internal structure of a fusion reactor, that is, a high heat load device such as a blanket, a limiter, and a diverter, and a method of manufacturing the cooling panel. To attach a header pipe (head pipe) for supplying a cooling medium such as water to the cooling panel or a header member for draining the cooling medium such as supplied water, the joining of the cooling panel and the header pipe to the cooling panel or The object of the present invention is to make it possible to perform hot isostatic pressing simultaneously with the installation of the header member.
[0002]
[Prior art]
The cooling panel that cools the internal structure of the fusion reactor, that is, the cooling panel that cools the high-temperature material inside the furnace used for blankets, limiters, divertors, etc., is subject to strict production and installation accuracy because it is frequently subjected to high heat loads and neutron irradiation effects. Is required. The cooling panel used under such conditions, when using a fusion welding such as TIG welding to join a flow path pipe through which the cooling medium constituting the cooling panel flows and a flat plate surrounding these flow path pipes, In the vicinity of the weld metal, there is a risk that defects such as cracks and cracks may occur due to the difference in the material of the weld metal and the flat plate or flow pipe, and the effect of structural discontinuity. The joining process is performed by a hydrostatic pressure method (for example, Japanese Patent Application Laid-Open No. H10-54688) (see FIG. 5).
However, the cooling panel manufactured by the hot isostatic pressurization process includes a header pipe for supplying a cooling medium such as water to each flow path pipe provided in the cooling panel and a cooling medium supplied with the header pipe. It is necessary to provide a header member for draining water.
[0003]
Conventionally, hollow cylindrical pipes with high pressure resistance have been used as the header tube and header member.To attach these to the cooling panel, holes provided in the header tube and header member are cooled by the cooling panel. The contact surface between the cooling panel and the header tube or the header member is welded by TIG welding or the like (see FIG. 6).
However, when the header tube or header member is welded to the cooling panel, a joint (contact surface) between the flow channel tube of the cooling panel and the flat plate previously manufactured by hot isostatic pressing during welding. )), An excessive contraction force is generated, and there is a concern that the flow path tube and the flat plate are separated.
[0004]
In addition, since a plurality of cooling panels are attached to one header pipe or header member by welding, the distance between the adjacent cooling panels and the welded portion is short, and the heat-affected zone wraps with each other. This thermal influence may impair the soundness of the pressure-resistant boundary of the cooling panel.
Further, since the header panel and the header member are welded to the cooling panel so as to be completely melted by TIG welding or the like, the welding amount is large, and the cooling panel and the header tube and the header member are connected to each other. Angular deformation at the weld is increased. Therefore, it is difficult to secure the strict manufacturing accuracy required for the internal structure of the nuclear fusion reactor.
[0005]
[Patent Document 1] Japanese Patent Application Laid-Open No. H10-54688
[Problem to be solved]
SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems of the prior art, and a header pipe for supplying a cooling medium to a cooling panel installed in a reactor internal structure of a fusion reactor or a pipe for draining the cooling medium. When attaching the header member, the structure of the mounting portion between the cooling panel, the header tube and the header member is devised so that the joining of the cooling panel and the attachment of the header tube and the header member to the cooling panel can be performed by hot static. It is an object of the present invention to significantly reduce the number of installation work steps and simultaneously ensure the soundness of a pressure-resistant boundary of a manufactured cooling panel by performing simultaneous processing by a hydraulic pressure method. .
[0007]
[Measures taken to solve the problem]
[Solution 1]
Means 1 taken in order to solve the above-mentioned problem is that a header pipe is provided on a cooling panel having a plurality of rectangular flow pipes arranged in parallel and surrounded by a flat plate so as to have a rectangular cross section. On the premise of the method of manufacturing the attached cooling panel, it is constituted by the following (a) to (f).
(A) Seal welding around the contact surface between the axial end portions of the rectangular flow tube and the front and back flat plate and the contact surface between the front and back flat plate and the side flat plate to which the deaeration pipe is attached, for cooling. Temporarily assembled panels,
(B) A step of an intermediate block member provided at the axial end of the temporary cooling panel with a ventilation hole for applying pressure into the rectangular flow pipe of the temporary cooling panel and a ventilation pipe connected to the ventilation hole. Abutting the horizontal surface, sealing around the contact surface, and temporarily attaching
(C) the intermediate block member is fitted into a groove provided in the rod-shaped member, and the periphery of the contact surface of the fitted portion is temporarily welded by seal welding;
(D) A flat lid plate provided with a deaeration pipe for deaeration in a hole and a groove through which the ventilation pipe penetrates is brought into contact with an end of the rod-shaped member, and the periphery of the flat lid plate is sealed and welded. That I have attached
(E) deaeration in the temporary assembly cooling panel and in the groove through each of the deaeration pipes and vacuum sealing,
The contact surface between the rectangular channel tube of the cooling panel and the front and back flat plate and the side flat plate, the contact surface between the front and back flat plate and the side flat plate and the intermediate block member, the contact surface between the intermediate block member and the rod-shaped member, the rod-shaped member and the plate-shaped lid That the contact surface with the plate was simultaneously diffusion bonded by hot isostatic pressing,
(F) After the diffusion bonding, the rod-shaped member and the intermediate block member are bored in the axial direction together with the rod-shaped member to provide a flow path hole for supplying water to the rectangular flow path pipe, and the rod-shaped member is connected to the header pipe. To do.
[0008]
[Action]
When the cooling panel and the header tube are attached, the intermediate block member attached to the axial end of the temporary assembly cooling panel is fitted into the groove of the rod-shaped member, thereby joining the temporary assembly cooling panel and the temporary assembly. The joining of the rod-shaped member to the cooling panel can be simultaneously performed by one hot isostatic pressing method. Therefore, the number of manufacturing steps is reduced, and the production efficiency is improved.
Also, since the header pipe is not attached to the cooling panel manufactured by the hot isostatic pressure treatment later by welding, the joining part of the cooling panel, that is, the joining between the rectangular channel pipe and the flat plate which is likely to occur at the time of welding. No excessive heat shrinkage load is generated in the portion. Therefore, the joint does not peel off, and the soundness of the joint is ensured.
Further, since fusion welding (TIG welding) is not used, the production accuracy is high, and it can be applied to nuclear fusion reactors and in-furnace equipment that require strict production accuracy.
[0009]
[Solution 2]
Means 2 taken in order to solve the above-mentioned problem is to arrange a plurality of rectangular flow pipes in parallel, and arrange a header pipe and a header member on a cooling panel surrounded by a flat plate so as to have a rectangular cross section. On the premise of the method of manufacturing the cooling panel provided with the header tube and the header member provided, the method comprises the following (a) to (f).
(A) Seal welding around the contact surface between the axial end portions of the rectangular flow tube and the front and back flat plate and the contact surface between the front and back flat plate and the side flat plate to which the deaeration pipe is attached, for cooling. Temporarily assembled panels,
(B) A step of an intermediate block member provided at the axial end of the temporary cooling panel with a ventilation hole for applying pressure into the rectangular flow pipe of the temporary cooling panel and a ventilation pipe connected to the ventilation hole. Abut the horizontal surface, seal around the contact surface and temporarily attach
On the other axial end of the temporary cooling panel, the stepped horizontal surface of the intermediate block member not provided with the ventilation hole and the ventilation pipe was abutted, and the periphery of the abutting surface was temporarily welded by seal welding,
(C) The intermediate block member provided with the ventilation hole and the ventilation pipe and the intermediate block member having no ventilation hole are fitted into the groove of the rod-shaped member, and the periphery of the contact surface of the fitted portion is temporarily sealed and welded. Attach
An end of one rod-shaped member fitted with the intermediate block member provided with the ventilation hole and the ventilation pipe is in contact with a flat lid plate provided with a hole through which the ventilation pipe penetrates and a deaeration pipe, That the periphery of the contact surface has been temporarily welded by seal welding,
(D) a hole through which a ventilation pipe penetrates and a flat cover plate without a deaeration pipe are brought into contact with an end of the other rod-shaped member, and the periphery of the contact surface is temporarily welded by seal welding;
(E) Degas the inside of the temporary assembly cooling panel and the groove through both of the degassing pipes, and vacuum seal them.
The contact surface between the rectangular channel pipe of the temporary assembly cooling panel and the front and back flat plate and the side flat plate, the contact surface between the front and back flat plate and the side flat plate and each intermediate block member, the contact surface between each intermediate block member and the rod-shaped member, respectively The rod-shaped member and the contact surface of each flat lid plate were simultaneously diffusion-bonded by hot isostatic pressure treatment,
(F) After the above-mentioned diffusion bonding, each of the rod-shaped members is bored in the axial direction to form flow passage holes for supplying or draining water to the rectangular flow passage tube, thereby forming a header tube and a header member. thing.
[0010]
[Action]
When attaching the header tube and the header member to the cooling panel, the intermediate block members temporarily attached to the respective axial ends of the temporary assembly cooling panel are fitted into the grooves of the rod-shaped members, so that the temporary assembly cooling panel The joining and the mounting of the respective bar-shaped members as the header tube and the header member to the temporary assembly cooling panel can be simultaneously performed by hot isostatic pressing, thereby further reducing the number of manufacturing steps and improving the production efficiency. Things.
Further, since the header tube and the header member are not attached to the cooling panel manufactured by the hot isostatic pressure treatment later by welding, the joint portion of the cooling panel, that is, the rectangular channel tube which is easily generated at the time of welding. An excessive heat shrinkage load does not occur at the joint between the metal and the flat plate, the joint does not peel off, and the soundness of the joint is easily maintained.
Further, since fusion welding (TIG welding) is not used, the production accuracy is high, and it can be applied to nuclear fusion reactors and in-furnace equipment that require strict production accuracy.
[0011]
[Solution 3]
Means 3 taken to solve the above-mentioned problem is constituted by the following (A) to (E) on the premise of a cooling panel structure constituted by a plurality of rectangular flow pipes to which a header pipe or a header member is attached. Things.
(A) A plurality of rectangular flow pipes are arranged in parallel, and the front, back, and both sides are surrounded by a flat plate, and the periphery of one side of the temporary assembled cooling panel is formed into a rectangular shape. The intermediate block member provided with a vent and a vent pipe connected to the vent is abutted, and the periphery of the abutting surface is temporarily welded by seal welding.
An intermediate block member having no ventilation hole is brought into contact with the other axial end, and the periphery of the contact surface is temporarily welded by seal welding.
(B) fitting the groove provided in the rod-shaped member to each of the intermediate block members and sealingly welding the periphery of the fitted portion to temporarily attach the groove;
(C) Of the rod-shaped member, the inside of the hole and groove through which the ventilation pipe penetrates is inserted into the end of the rod-shaped member fitted with the intermediate block member provided with the ventilation hole and the ventilation pipe connected to the ventilation hole. The flat lid plate provided with a deaeration pipe to be abutted, the periphery of the flat lid plate is seal welded and temporarily attached,
An end of the rod-shaped member fitted with the intermediate block member having no ventilation hole is brought into contact with a flat lid plate having no ventilation hole or deaeration pipe, and the periphery of the flat lid plate is temporarily welded by seal welding. That the temporary assembly cooling panel was configured,
(D) The above-mentioned temporary assembly cooling panel is subjected to hot isostatic pressurization treatment so that the contact surface between the rectangular flow path pipe and the flat plate, the butting contact surface between the flat plates, the contact surface between the flat plate and each intermediate block member, and the flat plate The contact surface with the rod-shaped member, the respective intermediate block member and the contact surface with each rod-shaped member were diffusion bonded by hot isostatic pressing,
(E) By drilling holes in the axial direction of each of the rod-shaped members to provide water supply or drainage to the rectangular flow path pipes, and to make these rod-shaped members into header pipes and header members. is there.
[0012]
[Action]
Since there are no welds at the joints of the cooling panel, header tube, and header member, there is no crack or crack near the weld even if it is strongly affected by high temperature load or irradiation with neutrons. .
[0013]
Embodiment
With reference to FIGS. 1 to 4, a method for manufacturing a high heat load device as a furnace internal structure of the fusion reactor of the present invention, for example, a header tube or a cooling panel with a header member installed on a blanket, a diverter or a limiter, etc. This will be described below.
The present invention is basically similar to the method of manufacturing the first wall installed on the blanket which is the internal structure of the conventional fusion reactor shown in FIG. 5 by hot isostatic pressing. .
A cooling panel with a header tube or a header member used for cooling a high-temperature substance according to the present invention is made of stainless steel and has a rectangular cross section. This rectangular cooling panel has a rectangular flow channel tube having a rectangular cross section through which a plurality of cooling media such as water arranged in parallel is surrounded by a flat plate, and has a height of approximately 10 to 15 mm and a width of approximately 10 to 15 mm. The panel has a panel structure of about 500 mm and a depth of about 500 to 1000 mm.
The thickness of each plate used for these is about 1.5 mm.
In the present invention, the header tube 4 or the header member 5 and the header tube 4 and the header member 5 can be attached to the cooling panel at the same time when the cooling panel having the rectangular shape is manufactured. The production is performed as follows.
[0014]
First, a manufacturing method for the first embodiment shown in FIG. 1 will be described.
In this structure, an intermediate block member 10 is attached to an axial end of the temporary assembly cooling panel 1 to attach the header tube 4 or the header member 5 to the temporary assembly cooling panel 1, and the intermediate block member 10 is attached. Thus, the joining of the temporary assembly cooling panel 1 and the attachment of the header pipe 4 or the header member 5 to the temporary assembly cooling panel 1 can be performed simultaneously by hot isostatic pressing.
In other words, the temporary assembly of the cooling panel has a rectangular cross section in which a plurality of rectangular flow pipes 2 are surrounded by four flat plates 3, and an axial end where the flat plate 3 and the rectangular flow pipe 2 come into contact with each other. The flat plate 3 is manufactured by sealing and welding the contact surfaces of the front and back flat plates 6, 7 and the flat plates 8, 8a on both sides with seal welding.
A degassing pipe 9 for degassing the inside of the temporary cooling panel 1 is temporarily attached to the side flat plate 8 of the temporary cooling panel 1.
In the temporarily assembled cooling panel 1, an intermediate block member 10 and a stepped horizontal surface 11 of the intermediate block member 10 are superimposed on the axial end, and the periphery of the contact surface is temporarily welded by seal welding. Attached.
The intermediate block member 10 temporarily attached to the axial end of the temporary cooling panel 1 is provided with a ventilation hole 12 for pressurizing the inside of the temporary cooling panel 1 and a ventilation pipe 15 connected to the ventilation hole 12. Has been.
[0015]
Further, the intermediate block member 10 of the temporary assembly cooling panel 1 is fitted with a groove 13 of a rod-shaped member 14 having an open groove 13 at one end where the intermediate block member 10 is fitted. The rod-like member 14 is temporarily attached by seal welding around the contact surface between the flat plate 3 and the groove 13 of the rod-like member 14 and the contact surface between the intermediate block member 10 and the rod-like member 14 constituting the temporary assembly cooling panel 1. .
Due to the provisional attachment of the rod-shaped member 14, the ventilation pipe 15 provided on the intermediate block member 10 is located outside the end of the rod-shaped member 14. At the end of the rod-shaped member 14 on the side where the ventilation pipe 15 is provided, a sealing flat cover plate 17 provided with a hole 16 through which the ventilation pipe 15 passes is abutted through the ventilation pipe 15. The surrounding area is temporarily welded by seal welding. Moreover, the flat cover plate 17 is provided with a deaeration pipe 20 for evacuating the inside of the groove 13 of the rod member 14 and the contact surface between the flat cover plate 17 and the rod member 14 (see FIG. 2). ).
[0016]
Then, the temporary assembly cooling panel 1 to which the bar-shaped members 14 are temporarily attached is set in a hot isostatic pressurizing device in a vacuum state, and the inside of the temporary assembly cooling panel and the inside of the groove of the bar-shaped member is degassed as described above. It is degassed via pipes 9 and 20 and vacuum sealed. The temperature of the degassed temporary cooling panel 1 is raised to about 1000 ° C. in a vacuum apparatus, and the pressure is raised to about 1500 kgf / cm 2 under an inert gas atmosphere such as argon gas. The temporary cooling panel 1 is pressurized from the outside and the inside of the rectangular flow path pipe, and the contact surface between the rectangular flow path pipe 2 and the flat plate 3 of the temporary cooling panel 1 and the contact surface between the flat plate 3 and the intermediate block member 10. The contact surface between the intermediate block member 10 and the rod-shaped member 14 and the contact surface between the rod-shaped member 14 and the flat cover plate 17 are diffusion-bonded.
The rod-shaped member 14 attached to the diffusion-bonded cooling panel is bored in the axial direction together with the intermediate block member 10 and the flat lid 17 to form a flow passage hole 19.
In addition, a lid plate 18 is attached by welding to an end of the rod-shaped member 14 provided with the flow passage hole 19, and is manufactured as a header tube or a header member.
That is, in the first embodiment, since the intermediate block member is used for attaching the rod-shaped member to the temporary assembly cooling panel, the header tube or the header member can be attached to the cooling panel simultaneously with the joining of the temporary assembly cooling panel. It can be done simultaneously by hot isostatic pressing.
[0017]
In the first embodiment, the header tube 4 or the header member 5 is separately attached to the cooling panel simultaneously with the joining of the cooling panel. The attachment of the header tube 4 and the header member 5 may be performed simultaneously.
[0018]
This manufacturing method will be described with reference to Example 2 based on a type using an intermediate block member.
The stepped horizontal surface of the intermediate block member 10 provided with the ventilation hole 12 and the ventilation pipe 15 is abutted on one axial end of the temporary assembly cooling panel 1, and the periphery of the abutting surface is temporarily attached. Then, an intermediate block member having no ventilation hole is temporarily attached to the other axial end by the same method as described above. These intermediate block members are fitted into the grooves of the rod-shaped members 14 and 14, respectively, and the periphery of the fitted portion is temporarily welded by seal welding (not shown).
Then, a flat lid plate for sealing is temporarily attached to both ends of the rod-shaped members. Of course, a hole 16 through which a ventilation pipe 15 for applying pressure to the temporary assembly cooling panel 1 is provided and a deaeration pipe 20 are provided in the flat cover plate 17 on the rod-shaped member into which the intermediate block member 10 is fitted. Has been.
[0019]
In this way, the temporary assembled cooling panel 1 having the rod-shaped members temporarily attached to both ends in the axial direction is set in the hot isostatic pressurizing device, and is temporarily set by the deaeration pipes 9 and 20. The inside and the inside of the groove 13 of the rod-shaped member are evacuated and vacuum-sealed.
Then, the temporary cooling panel 1 to which the respective rod-shaped members 14 are temporarily attached is placed in a hot isostatic pressurized apparatus in a vacuum state under an atmosphere of an inert gas such as argon gas in the same manner as described above. The temperature of the temporary cooling panel 1 is increased from the outside and the inside of the rectangular flow pipe 2 to raise the temperature to about 1000 ° C. and the pressure to about 1500 kgf / cm 2. 2, the contact surface between the flat plate 3 and each intermediate block member 10, the contact surface between each intermediate block member 10 and each rod member 14, and the contact surface between the flat plate 3 and each rod member 14. Diffusion bonded.
Each of the rod-shaped members 14 attached to the joined cooling panels is formed with a hole in the axial direction together with the intermediate block member in the same manner as described above, and the flow path holes 19 are provided.
[0020]
A lid plate 18 is attached to an end of each rod-shaped member 14 provided with the flow path hole 19 by welding, and a header tube and a header member are manufactured. That is, the above-described cooling panel with header tube and header member can use the intermediate block member to simultaneously join the cooling panel and attach the header tube and header member to the cooling panel. .
The rod-like members 14 attached to the cooling panels are formed from the axial ends thereof to form flow passage holes 19, and one of the rod-like members is used as a header pipe 4 for supplying a cooling medium such as water. The other rod-shaped member is used as a header member 5 for draining the cooling medium.
[0021]
FIG. 4 shows another example in which two cooling panels each having a header member attached thereto are attached to one header tube, and the header tube is shared by one header tube. In this method, the joining of the cooling panel and the attachment of the header tube and the header member to the cooling panel are performed simultaneously.
The number of panels to be attached can be set arbitrarily by selecting the size of the header tube.
[0022]
【effect】
To attach a header tube or a header member to the cooling panel, a groove provided in a rod-shaped member is fitted to an axial end of the temporarily assembled cooling panel, or an intermediate block member is attached to the temporarily assembled cooling panel. Since the intermediate block member is temporarily attached to the end in the axial direction and the intermediate block member is fitted into the groove provided in the rod-shaped member, the joining of the temporarily assembled cooling panel and the attachment of the header tube or header member are performed in one heat cycle. This is done simultaneously by the isostatic pressing process. As a result, the operation time for attaching the header tube or the header member is greatly reduced, and the operation efficiency is improved.
Further, since the header pipe or the header member is not attached to the cooling panel previously joined by hot isostatic pressure treatment by welding, an excessive heat shrinkage load is applied to the joint of the cooling panel. Therefore, the joint of the cooling panel does not peel off.
Further, since the manufactured cooling panel does not have a welded metal portion welded thereto, even if it is strongly affected by a high heat load or neutron irradiation, the welded metal portion does not crack or crack.
Therefore, the cooling panel provided with the header tube or header member manufactured according to the present invention has sufficient durability for use under severe conditions subject to strong impact from high heat loads and neutrons, and reliability for quality. High in nature. Further, since all the contact surfaces are joined at the same time, the number of manufacturing steps can be greatly reduced, and the production cost is greatly reduced.
[Brief description of the drawings]
FIG. 1A is a schematic perspective view showing a state in which a groove of a rod-shaped member serving as a header tube is fitted to a temporary assembly cooling panel to which an intermediate block member is temporarily attached according to the method of the present invention, and FIG. 1 is a schematic longitudinal sectional view of a part XX of FIG.
FIG. 2 (a) is a view showing a state in which a groove of a rod-shaped member serving as a header tube is fitted into an intermediate block member temporarily attached to a temporary assembly cooling panel according to the method of the present invention, and the periphery of the fitted portion is seal-welded; It is a schematic perspective view which shows the state which attaches the hole through which the pressurized ventilation pipe and the deaeration pipe are provided to the end part of the rod-shaped member, and temporarily attaches the flat lid plate, (b) is YY of (a). It is a schematic longitudinal cross-sectional view of a part.
FIG. 3 is a schematic perspective view showing a state in which a lid plate is attached by welding to a rod-shaped member provided with a flow path hole serving as a header tube and a header member of a joined cooling panel according to the present invention.
FIG. 4 is a schematic perspective view of a cooling panel with a header member in which a header tube manufactured according to the present invention is commonly used.
FIG. 5 (a) is a schematic longitudinal sectional view of a first wall for cooling a high-temperature substance provided on a blanket, which is a furnace internal structure of a conventional fusion reactor, before a hot isostatic pressing process; (b) is a schematic longitudinal sectional view of the first wall after joining by hot isostatic pressing.
FIG. 6 (a) is a partial schematic cross-sectional view showing a state where a header tube or header member is attached to a cooling panel by conventional welding, and (b) is a header tube or (a) of FIG. FIG. 11 is a schematic cross-sectional view showing a state in which the header member is divided, the divided half members are welded to a cooling panel, and the remaining half members are then welded.
[Explanation of symbols]
1: Temporary cooling panel 2: Rectangular flow path tube 3: Flat plate 4: Header tube 5: Heading member 6: Front flat plate 7: Back flat plate 8, 8a: Side flat plate 9: Degassing pipe 10: Intermediate block member 11: Step horizontal surface 12: Vent hole 13: Groove 14: Rod member 15: Vent pipe 16: Hole 17: Flat lid 18: Lid 19: Channel hole 20: Deaerated pipe

Claims (3)

複数の矩形流路管を複数本並列に並べ、断面が矩形形状になるように周囲を平板で囲んだ冷却パネルにヘッダー管を取付けた、ヘッダー管付冷却パネルの製作方法において、
上記矩形流路管の軸方向の両端部と表裏平板との接触面の周囲、及び、表裏平板に脱気パイプを取付けた側平板との突き合わせ接触面の周囲をシール溶接して冷却パネルを仮組し、
上記仮組冷却パネルの軸方向端部に、この仮組冷却パネルの矩形流路管内に圧力を加えるための通気孔およびこの通気孔に接続する通気パイプを設けた中間ブロック部材の段部水平面を当接し、その当接面の周囲をシール溶接して仮付けし、
上記中間ブロック部材を棒状部材に設けた溝に嵌合して、その嵌合部の接触面の周囲をシール溶接して仮付けし、
上記棒状部材の端部に上記通気パイプが貫通する孔および溝内の脱気をする脱気パイプを設けた平板状蓋板を当接し、当該平板状蓋板の周囲をシール溶接して仮付けし、
上記各々の脱気パイプを介して仮組冷却パネル内および上記溝内の脱気をして真空封止し、
上記冷却パネルの矩形流路管と表裏平板及び側平板との接触面、表裏平板及び側平板と中間ブロック部材との接触面、中間ブロック部材と棒状部材との接触面、棒状部材と平板状蓋板との接触面を同時に熱間静水圧加圧処理により拡散接合し、
上記拡散接合後に、上記棒状部材に棒状部材と上記中間ブロック部材とを一緒に軸方向に孔加工して矩形流路管に給水する流路孔を設け、上記棒状部材をヘッダー管にすることを特徴とする、ヘッダー管付冷却パネルの製作方法。A method of manufacturing a cooling panel with a header pipe, in which a plurality of rectangular flow pipes are arranged in parallel and a header pipe is attached to a cooling panel surrounded by a flat plate so that the cross section becomes a rectangular shape,
Around the contact surface between the axial end portions of the rectangular flow channel tube and the front and back flat plates, and around the butt contact surface between the front and back flat plates and the side flat plate to which the deaeration pipe is attached, seal-welding the cooling panel temporarily. Teamed up
At the axial end of the temporary cooling panel, the stepped horizontal surface of the intermediate block member provided with a ventilation hole for applying pressure into the rectangular flow pipe of the temporary cooling panel and a ventilation pipe connected to the ventilation hole is provided. Abut, seal weld around the abutment surface and temporarily attach
The intermediate block member is fitted into a groove provided in the rod-shaped member, and the periphery of the contact surface of the fitting portion is temporarily welded by seal welding.
The end of the rod-shaped member is brought into contact with a flat cover plate provided with a hole through which the ventilation pipe penetrates and a deaeration pipe for deaeration in the groove, and the periphery of the flat cover plate is temporarily welded by seal welding. And
Deaerate the inside of the temporary cooling panel and the groove through each of the deaeration pipes and vacuum seal them,
The contact surface between the rectangular channel tube of the cooling panel and the front and back flat plate and the side flat plate, the contact surface between the front and back flat plate and the side flat plate and the intermediate block member, the contact surface between the intermediate block member and the rod-shaped member, the rod-shaped member and the plate-shaped lid Diffusion bonding of the contact surface with the plate at the same time by hot isostatic pressing
After the diffusion bonding, the rod-shaped member and the intermediate block member are axially drilled together with the rod-shaped member to provide a flow path hole for supplying water to the rectangular flow path pipe, and the rod-shaped member is used as a header pipe. Characteristic method of manufacturing cooling panel with header tube. 複数の矩形流路管を複数本並列に並べ、断面が矩形形状になるように周囲を平板で囲んだ冷却パネルにヘッダー管および管寄せ部材を取付けた、ヘッダー管および管寄せ部材付冷却パネルの製作方法において、
上記矩形流路管の軸方向の両端部と表裏平板との接触面の周囲、及び、表裏平板と脱気パイプを取付けた側平板との突き合わせ接触面の周囲をシール溶接して冷却パネルを仮組し、
上記仮組冷却パネルの軸方向端部に、この仮組冷却パネルの矩形流路管内に圧力を加えるための通気孔およびこの通気孔に接続する通気パイプを設けた中間ブロック部材の段部水平面を当接し、その当接面の周囲をシール溶接して仮付けし、
仮組冷却パネルの他方の軸方向端部に、通気孔と通気パイプを設けていない中間ブロック部材の段部水平面を当接し、その当接面の周囲をシール溶接して仮付けし、
上記通気孔および通気パイプを設けた中間ブロック部材と通気孔のない中間ブロック部材とを、上記棒状部材の溝に嵌合し、それら嵌合部の接触面の周囲をシール溶接して仮付けし、
上記通気孔および通気パイプを設けた中間ブロック部材を嵌合させた一方の棒状部材の端部に、上記通気パイプが貫通する孔と脱気パイプを設けた平板状蓋板を当接して、その当接面の周囲をシール溶接して仮付けし、
他方の棒状部材の端部に通気パイプが貫通する孔および脱気パイプのない平板状蓋板を当接して、その当接面の周囲をシール溶接して仮付けし、
上記各々の脱気パイプを介して仮組冷却パネル内および溝内の脱気をして真空封止し、
仮組冷却パネルの矩形流路管と表裏平板及び側平板との接触面、表裏平板及び側平板とそれぞれの中間ブロック部材との接触面、それぞれの中間ブロック部材と棒状部材との接触面、それぞれの棒状部材とそれぞれの平板状蓋板との接触面とを同時に熱間静水圧加圧処理により拡散接合し、
上記拡散接合後に、上記それぞれの棒状部材に軸方向に孔加工して、矩形流路管へ給水し排水をする流路孔を形成してヘッダー管と管寄せ部材とにすることを特徴とする、ヘッダー管および管寄せ部材付冷却パネルの製作方法。A plurality of rectangular flow pipes are arranged in parallel, and a header panel and a header member are attached to a cooling panel surrounded by a flat plate so as to have a rectangular cross section. In the production method,
The cooling panel is tentatively sealed by seal welding around the contact surface between the axial end portions of the rectangular channel pipe and the front and back flat plates, and around the butt contact surface between the front and back flat plates and the side flat plate to which the deaeration pipe is attached. Teamed up
At the axial end of the temporary cooling panel, the stepped horizontal surface of the intermediate block member provided with a ventilation hole for applying pressure into the rectangular flow pipe of the temporary cooling panel and a ventilation pipe connected to the ventilation hole is provided. Abut, seal weld around the abutment surface and temporarily attach
At the other axial end of the temporary cooling panel, the step horizontal surface of the intermediate block member not provided with the ventilation hole and the ventilation pipe is abutted, and the periphery of the abutting surface is temporarily welded by seal welding.
The intermediate block member provided with the ventilation hole and the ventilation pipe and the intermediate block member having no ventilation hole are fitted into the groove of the rod-shaped member, and the periphery of the contact surface of the fitting portion is temporarily welded by seal welding. ,
An end of one rod-shaped member fitted with the intermediate block member provided with the ventilation hole and the ventilation pipe is in contact with a flat lid plate provided with a hole through which the ventilation pipe penetrates and a deaeration pipe, Seal around the contact surface and temporarily attach it
The end of the other rod-shaped member is brought into contact with a flat cover plate without a hole through which the ventilation pipe penetrates and without the deaeration pipe, and the periphery of the contact surface is temporarily welded by seal welding,
Degas the inside of the temporary cooling panel and the groove through each of the degassing pipes and vacuum seal,
The contact surface between the rectangular channel pipe of the temporary assembly cooling panel and the front and back flat plate and the side flat plate, the contact surface between the front and back flat plate and the side flat plate and each intermediate block member, the contact surface between each intermediate block member and the rod-shaped member, respectively The rod-shaped member and the contact surface of each flat lid plate are simultaneously diffusion-bonded by hot isostatic pressing,
After the diffusion bonding, each of the rod-shaped members is axially drilled to form a flow passage hole for supplying and draining water to the rectangular flow passage tube, thereby forming a header tube and a header member. For manufacturing a cooling panel with a header tube and header member. ヘッダー管及び管寄せ部材付き冷却パネル構造において、
複数の矩形流路管を複数本並列に並べ、その表裏および両側面の周囲を平板で断面が矩形形状になるように囲んだ仮組冷却パネルの一方の軸方向端部に、通気孔およびその通気孔に接続する通気パイプを設けた中間ブロック部材を当接させて、その当接面の周囲をシール溶接して仮付けし、
他方の軸方向端部に通気孔のない中間ブロック部材を当接して、その当接面の周囲をシール溶接して仮付けし、
上記それぞれの中間ブロック部材に上記棒状部材の溝を嵌合してその嵌合部の周囲をシール溶接して仮付けし、
上記棒状部材のうち、通気孔と当該通気孔に接続する通気パイプとを設けた中間ブロック部材を嵌合した棒状部材端部に、上記通気パイプが貫通する孔および溝内を脱気する脱気パイプを設けた平板状蓋板を当接して、当該平板状蓋板の周囲をシール溶接して仮付けし、
通気孔のない中間ブロック部材を嵌合した棒状部材端部に、通気孔や脱気パイプのない平板状蓋板を当接し当該平板状蓋板の周囲をシール溶接して仮付けして、仮組冷却パネルを構成し、
上記仮組冷却パネルを熱間静水圧加圧処理により矩形流路管と平板との接触面、平板同士の突き合わせ接触面、平板とそれぞれの中間ブロック部材との接触面、平板とそれぞれの棒状部材との接触面、それぞれの中間ブロック部材とそれぞれの棒状部材との接触面とを熱間静水圧加圧処理により拡散接合し、
両棒状部材の軸方向に孔加工して、上記矩形流路管へ給水し排水する流路孔を設けたことを特徴とする、ヘッダー管および管寄せ部材付冷却パネル。In the cooling panel structure with header pipe and header member,
A plurality of rectangular flow pipes are arranged in parallel, and a ventilation hole is formed at one axial end of a temporary assembled cooling panel in which the front, back, and both sides are flat and the cross section is rectangular. The intermediate block member provided with the ventilation pipe connected to the ventilation hole is brought into contact, and the periphery of the contact surface is temporarily welded by seal welding.
An intermediate block member without a vent hole is brought into contact with the other axial end, and the periphery of the contact surface is temporarily welded by seal welding.
The groove of the rod-shaped member is fitted to each of the intermediate block members, and the periphery of the fitted portion is temporarily welded by seal welding,
Among the rod-shaped members, the end of the rod-shaped member fitted with an intermediate block member provided with a ventilation hole and a ventilation pipe connected to the ventilation hole is provided with a vent through which the ventilation pipe penetrates and a groove. The flat cover plate provided with the pipe is abutted, and the periphery of the flat cover plate is temporarily welded by seal welding.
The end of the rod-shaped member fitted with the intermediate block member having no vent hole is brought into contact with a flat lid plate having no vent hole or deaeration pipe, and the periphery of the flat lid plate is temporarily welded by seal welding. Configure a cooling panel set,
The above-mentioned temporary assembly cooling panel is subjected to hot isostatic pressurization treatment to make contact surfaces between the rectangular flow pipe and the flat plate, butted contact surfaces between the flat plates, contact surfaces between the flat plate and the respective intermediate block members, flat plates and the respective rod-shaped members. And the contact surface with the respective intermediate block members and the contact surface with the respective bar-shaped members are diffusion bonded by hot isostatic pressing,
A cooling panel with a header pipe and a header member, characterized in that a flow path hole for supplying water to and draining from the rectangular flow path pipe is provided by drilling holes in both rod-shaped members in the axial direction.
JP2003067113A 2003-03-12 2003-03-12 Cooling panel with header tube and method of manufacturing the same Expired - Fee Related JP3580425B2 (en)

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JP2006092987A (en) * 2004-09-27 2006-04-06 Matsushita Electric Ind Co Ltd Switch

Cited By (1)

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Publication number Priority date Publication date Assignee Title
JP2006092987A (en) * 2004-09-27 2006-04-06 Matsushita Electric Ind Co Ltd Switch

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