JP2667020B2 - Equipment loading and unloading equipment at nuclear power plants - Google Patents

Equipment loading and unloading equipment at nuclear power plants

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Publication number
JP2667020B2
JP2667020B2 JP1262049A JP26204989A JP2667020B2 JP 2667020 B2 JP2667020 B2 JP 2667020B2 JP 1262049 A JP1262049 A JP 1262049A JP 26204989 A JP26204989 A JP 26204989A JP 2667020 B2 JP2667020 B2 JP 2667020B2
Authority
JP
Japan
Prior art keywords
unloading
equipment
loading
floor
containment vessel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP1262049A
Other languages
Japanese (ja)
Other versions
JPH03123890A (en
Inventor
文利 橋本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP1262049A priority Critical patent/JP2667020B2/en
Publication of JPH03123890A publication Critical patent/JPH03123890A/en
Application granted granted Critical
Publication of JP2667020B2 publication Critical patent/JP2667020B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

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  • Monitoring And Testing Of Nuclear Reactors (AREA)

Description

【発明の詳細な説明】 〔発明の目的〕 （産業上の利用分野） 本発明は原子力発電所における機器搬出入装置に係
り、特に原子炉格納容器の側壁部に設けられた機器搬出
入ハッチの前にハッチ開閉用のピットが形成された原子
力発電所における機器搬出入装置に関する。The present invention relates to a device loading / unloading apparatus for a nuclear power plant, and more particularly to a device loading / unloading hatch provided on a side wall of a reactor containment vessel. The present invention relates to a device loading / unloading device in a nuclear power plant in which a pit for opening and closing a hatch is formed.

（従来の技術） 原子力発電所における原子炉格納容器の側壁部には、
側壁部を水平方向に貫通する機器搬出入トンネルが設け
られ、この機器搬出入トンネルの外側に機器搬出入用の
ハッチが開閉可能に設けられる。機器搬出入トンネル内
の床面にはレールが設置され、原子炉格納容器の外側の
床面にも同様にレールが設置される。このレール上には
搬送台車が走行可能に設置され、各種の機器を機器搬出
入トンネルを通って原子炉格納容器内に搬入あるいは搬
出するようになっている。(Prior Art) On the side wall of the reactor containment vessel in a nuclear power plant,
A device loading / unloading tunnel that penetrates the side wall in the horizontal direction is provided, and a hatch for loading / unloading the device is provided on the outside of the device loading / unloading tunnel so as to be openable and closable. Rails will be installed on the floor inside the equipment loading / unloading tunnel, and rails will be installed on the floor outside the PCV as well. A carrier truck is movably installed on this rail so that various equipment can be loaded into or unloaded from the reactor containment vessel through an equipment loading / unloading tunnel.

（発明が解決しようとする課題） 機器搬出入トンネル内の床面と原子炉格納容器外の床
面が同一レベルである場合、機器搬出入トンネルの外側
に設けられたハッチの下端は原子炉格納容器外の床面よ
りも低くなる。このため、ハッチの開閉を可能とするた
めにハッチの外側の床に開閉用のピットが形成される。
ピットの大きさはハッチの開閉軌跡により決定され、床
面の欠損部は広範囲となる。そのため、原子炉格納容器
内への機器の搬出入を可能とするために、欠損部を何か
らの形で補う必要がある。(Problems to be Solved by the Invention) When the floor surface inside the equipment loading / unloading tunnel and the floor surface outside the reactor containment vessel are at the same level, the lower end of the hatch provided outside the equipment loading / unloading tunnel is the reactor storage area. It is lower than the floor outside the container. Therefore, a pit for opening and closing is formed on the floor outside the hatch to enable opening and closing of the hatch.
The size of the pit is determined by the opening / closing locus of the hatch, and the defect on the floor surface is wide. Therefore, it is necessary to compensate for the defective portion in some form in order to allow the equipment to be carried in and out of the reactor containment vessel.

本発明は上記の事情を考慮してなされたもので、原子
炉格納容器内への機器の搬出入を可能とすると共に、使
用しないときは容易に収納可能な原子力発電所における
機器搬出入装置を提供することを目的とする。The present invention has been made in consideration of the above circumstances, and provides an equipment loading and unloading apparatus for a nuclear power plant that enables loading and unloading of equipment into and from the reactor containment vessel and that can be easily stored when not in use. The purpose is to provide.

〔発明の構成〕[Configuration of the invention]

（課題を解決するための手段） 上記の目的を達成するために、本発明は、原子炉格納
容器の側壁部に貫通して設けられ前記原子炉格納容器の
外側の床面と同一レベルに床面が設定された機器搬出入
トンネルを有する原子力発電所における機器搬出入装置
において、前記機器搬出入トンネルの外側に蝶番を中心
に水平方向に開閉する機器搬出入ハッチを設置し、この
機器搬出入ハッチの前方の前記原子炉格納容器の床に前
記機器搬出入ハッチの開閉ピットを形成し、かつこの開
閉ピットに沿う床面に設けられ蝶番を中心に回転するア
ームと、このアームの蝶番側の端部と対向する端部に一
体的に設けられた機器搬出入床板と、この機器搬出入床
板の上面に設けられ機器を搬送する台車が走行するレー
ルと、前記開閉ピットの底面に蝶番を中心に開閉可能に
設けられた支持棒とを具備し、さらに前記アームが水平
状態のときに前記機器搬出入床板の荷重を前記支持棒が
直立状態で支持するとともに、前記機器搬出入床板の上
面が前記原子炉格納容器の外側の床面と同レベルとなる
ことを特徴とするものである。(Means for Solving the Problems) In order to achieve the above object, the present invention provides a floor that is provided penetrating a side wall portion of a reactor containment vessel and at the same level as a floor surface outside the reactor containment vessel. In a device loading and unloading device in a nuclear power plant having a device loading and unloading tunnel with a set surface, a device loading and unloading hatch that horizontally opens and closes around a hinge is installed outside the device loading and unloading tunnel. An opening / closing pit for the equipment loading / unloading hatch is formed on the floor of the reactor containment vessel in front of the hatch, and an arm provided on the floor surface along the opening / closing pit and rotating around a hinge is provided. Equipment loading and unloading floor plate integrally provided at the end opposite to the end, rails on the top surface of this equipment loading and unloading floor for the carriage of equipment to travel, and a hinge on the bottom of the opening and closing pit. To And a support rod provided so as to be openable and closable, and when the arm is in a horizontal state, the support rod supports the load of the equipment loading / unloading floor plate in an upright state, and the upper surface of the equipment loading / unloading floor plate is It is characterized in that it is at the same level as the floor surface outside the reactor containment vessel.

（作用） 開閉ピットに沿う床面に蝶番を中心として回転するア
ームを設け、このアームの蝶番側端部に対向する端部に
一体的に機器搬出入床板を設けたから、原子炉格納容器
内への機器の搬出入を可能とすることができるととも
に、使用しない場合は容易に収納することができる。(Operation) An arm that rotates around the hinge was installed on the floor along the opening / closing pit, and an equipment loading / unloading floor plate was integrally installed at the end of the arm that faces the hinge side end. The device can be loaded and unloaded, and can be easily stored when not in use.

また、機器搬出入ハッチは、機器搬出入トンネルの外
側に蝶番を中心に水平方向に開閉するように設置されて
いるので、ハッチに車輪等の移動設備を取り付ける必要
がなくなり、容易にハッチの開閉を行うことができる。In addition, since the hatch for loading and unloading equipment is installed outside the tunnel for loading and unloading the equipment so that it can be opened and closed horizontally around the hinges, there is no need to attach moving equipment such as wheels to the hatch, and the hatch can be easily opened and closed. It can be performed.

さらに、アームが水平状態のとき機器搬出入床板の上
面が原子炉格納容器の外側の床面と同レベルとなるよう
に設定されているので、機器搬出入床板の上面に設けら
れたレール上を走行する台車により機器を搬送する際、
この台車を原子炉格納容器の外側の床面上に容易に移動
させることができる。Furthermore, since the upper surface of the equipment loading / unloading floor plate is set to be at the same level as the outer floor surface of the reactor containment vessel when the arm is in the horizontal state, the rail on the upper surface of the equipment loading / unloading floor plate should be installed. When transporting equipment by traveling trolley,
This dolly can be easily moved to the floor surface outside the reactor containment vessel.

そして、機器搬出入床板を水平に配置する際には、開
閉ピットの底面に先端部を有する支持棒により荷重が支
持されるので、機器搬出入床板はその面積をおよび総重
量を小さくすることができる。When the equipment loading / unloading floorboard is arranged horizontally, the load is supported by the supporting rod having the tip portion on the bottom surface of the opening / closing pit, so that the equipment loading / unloading floorboard can reduce its area and total weight. it can.

（実施例） 本発明に係る原子力発電所における機器搬出入装置の
一実施例について添付図面を参照して説明する。(Embodiment) An embodiment of a device carrying-in / out apparatus in a nuclear power plant according to the present invention will be described with reference to the accompanying drawings.

第１図および第２図に示すように、原子炉格納容器１
の側壁部に原子炉格納容器１内に各種の機器を搬入ある
いは搬出するための機器搬出入トンネル２が設けられ
る。機器搬出入トンネル２は側壁部を水平方向に貫通し
て設けられる。機器搬出入トンネル２の床面には搬送台
車３が走行可能なレール4aが設置される。As shown in FIGS. 1 and 2, the reactor containment vessel 1
A device loading / unloading tunnel 2 for loading / unloading various devices into / from the reactor containment vessel 1 is provided on the side wall of the device. The device loading / unloading tunnel 2 is provided so as to horizontally pass through the side wall. On the floor surface of the equipment loading / unloading tunnel 2, a rail 4a on which the carrier 3 can travel is installed.

機器搬出入トンネル２の外側には機器搬出入ハッチ5
a,5bが蝶番６を中心として開閉可能に設けられる。ここ
で、符号5aは閉じた状態を示し、符号5bは開いた状態を
示す。機器搬出入ハッチ5a,5bは、第２図に示すよう
に、円盤状に形成されるため、機器搬出入ハッチ5a,5b
の開閉を可能とするため、原子炉格納容器１外側の床面
７にはピット（開閉ピット）８が形成される。Outside the equipment loading / unloading tunnel 2, equipment loading / unloading hatch 5
A and 5b are provided so that they can be opened and closed around the hinge 6. Here, reference numeral 5a indicates a closed state, and reference numeral 5b indicates an open state. As shown in FIG. 2, the device loading / unloading hatches 5a, 5b are formed in a disk shape, and therefore, the device loading / unloading hatches 5a, 5b.
A pit (opening / closing pit) 8 is formed on the floor surface 7 outside the reactor containment vessel 1 to enable opening and closing.

原子炉格納容器１外側の床面７は機器搬出入トンネル
２の床面と同一レベルに設定され、原子炉格納容器１外
側の床面７には搬送台車３が走行可能なレール4bが設置
される。The floor surface 7 outside the reactor containment vessel 1 is set to the same level as the floor surface of the equipment loading / unloading tunnel 2, and a rail 4b capable of traveling by a carrier 3 is installed on the floor surface 7 outside the reactor containment vessel 1. You.

ピット８に沿う床面７には蝶番10を中心として垂直面
内を回動可能なアーム11a,11bが設けられ、このアーム1
1a,11bの先端に機器搬出入用床板としてのプレートブリ
ッジ12a,12bが一体的に設けられる。プレートブリッジ1
2a,12bの上面には搬送台車３が走行可能なレール4c,4
c′が設置される。レール4cはプレートブリッジ12bが水
平に設置された状態で機器搬出入トンネル２の床面に設
けられたレール4aおよび原子炉格納容器１外側の床面７
に設けられたレール4bと連結されるようになっている。
プレートブリッジ12bの先端部には荷重を支持するため
の支持棒13a,13bが設けられる。支持棒13a,13bはピット
８の底部に設けられた蝶番14を中心として垂直面内を回
動可能に設けられる。On the floor surface 7 along the pit 8, there are provided arms 11a and 11b which are rotatable about a hinge 10 in a vertical plane.
Plate bridges 12a, 12b are integrally provided at the tips of 1a, 11b as equipment loading / unloading floor boards. Plate bridge 1
Rails 4c, 4 on which the carriage 3 can travel are mounted on the upper surfaces of 2a, 12b.
c 'is installed. The rail 4c is provided on the floor surface of the equipment loading / unloading tunnel 2 with the plate bridge 12b installed horizontally and the floor surface 7 outside the reactor containment vessel 1.
It is designed to be connected to the rail 4b provided on the.
Support rods 13a and 13b for supporting a load are provided at the tip of the plate bridge 12b. The support rods 13a and 13b are provided so as to be rotatable in a vertical plane about a hinge 14 provided at the bottom of the pit 8.

なお、符号4c,11b,12b,13bはプレートブリッジ12bを
設置して搬送台車３が走行可能な状態を示し、符号4
c′,11a,12aはプレートブリッジ12aを収納した状態を示
す。収納状態のプレートブリッジ12aは壁15にもたれ掛
った状態となっている。Reference numerals 4c, 11b, 12b, and 13b indicate states in which the plate bridge 12b is installed and the transport vehicle 3 can travel.
Reference numerals c ', 11a and 12a indicate a state in which the plate bridge 12a is housed. The stored plate bridge 12a leans against the wall 15.

次に作用について説明する。 Next, the operation will be described.

通常運転時においてはハッチ5aは閉じられており、プ
レートブリッジ12aは壁15にもたれ掛って収納された状
態となっている。また、支持棒13aはピット８の底部に
寝かされた状態となっている。During normal operation, the hatch 5a is closed, and the plate bridge 12a leans against the wall 15 and is stored. The support rod 13a is in a state of being laid down on the bottom of the pit 8.

定期検査時においては、機器搬出入ハッチ5aが蝶番６
を中心として開かれ、符号5bの位置にある。また、プレ
ートブリッジ12bは蝶番10を中心としてアーム11bが回動
することにより水平の状態となり、機器搬出入トンネル
２の床面および原子炉格納容器１外側の床面７と同じレ
ベルとなり、各レール4a,4b,4cが接続される。プレート
ブリッジ12bの先端部は支持棒13bが立設されることによ
り支持される。At the time of regular inspection, the equipment loading / unloading hatch 5a is hinged 6
It is opened with the center at, and it is at the position of the reference numeral 5b. Further, the plate bridge 12b becomes horizontal due to the rotation of the arm 11b around the hinge 10, and becomes the same level as the floor surface of the equipment loading / unloading tunnel 2 and the floor surface 7 outside the reactor containment vessel 1 and each rail. 4a, 4b, 4c are connected. The tip portion of the plate bridge 12b is supported by the support rod 13b standing upright.

したがって、搬送台車３はレール4a,4b,4cを通って機
器搬出入トンネル２から原子炉格納容器１内に出入りす
ることができ、原子炉格納容器１内への各種機器の搬入
および搬出を行なうことができる。また、定期検査終了
後には、プレートブリッジ12bを蝶番10を中心として回
動させることにより壁15にもたれさせ、符号12aの状態
とすることにより、極めて容易に収納することができ
る。Therefore, the transport trolley 3 can enter and leave the reactor containment vessel 1 from the equipment carry-in / out tunnel 2 through the rails 4a, 4b and 4c, and carry in and carry out various kinds of equipment into the reactor containment vessel 1. be able to. After the periodic inspection, the plate bridge 12b is rotated around the hinge 10 so that the plate bridge 12b leans against the wall 15 and is brought into the state of the reference numeral 12a, whereby the plate bridge 12b can be stored very easily.

このように上記実施例によれば、ピット８にプレート
ブリッジ12bを設置したから、搬送台車３がレール4a,4
b,4c上を走行して原子炉格納容器１内へ各種機器の搬入
および搬出を行なうことができる。また、プレートブリ
ッジ12a,12bを蝶番10を中心として回動可能に設けたか
ら、プレートブリッジ12a,12bの設定および収納を短時
間かつ容易に行なうことができる。As described above, according to the above-described embodiment, since the plate bridge 12b is installed in the pit 8, the carrier 3 is mounted on the rails 4a, 4a.
It is possible to carry in and carry out various devices into the reactor containment vessel 1 by traveling on b and 4c. Further, since the plate bridges 12a and 12b are provided so as to be rotatable around the hinge 10, the plate bridges 12a and 12b can be set and stored easily in a short time.

〔発明の効果〕〔The invention's effect〕

以上のように、本発明に係る原子力発電所における機
器搬出入装置によれば、開閉ピットに沿う床面に蝶番を
中心として回転するアームを設け、このアームの蝶番側
端部に対向する端部に一体的に機器搬出入床板を設けた
から、原子炉格納容器内への機器の搬出入を可能とする
ことができるとともに、使用しない場合は容易に収納す
ることができる。As described above, according to the equipment carrying-in / out apparatus in the nuclear power plant according to the present invention, the arm that rotates around the hinge is provided on the floor surface along the opening / closing pit, and the end portion facing the hinge-side end portion of this arm is provided. Since the equipment loading / unloading floor plate is integrally provided in the reactor, the equipment can be loaded / unloaded into / from the reactor containment vessel, and can be easily stored when not in use.

また、機器搬出入ハッチは、機器搬出入トンネルの外
側に蝶番を中心に水平方向に開閉するように設置されて
いるので、ハッチに車輪等の移動設備を取り付ける必要
がなくなり、容易にハッチの開閉を行うことができる。In addition, since the hatch for loading and unloading equipment is installed outside the tunnel for loading and unloading the equipment so that it can be opened and closed horizontally around the hinges, there is no need to attach moving equipment such as wheels to the hatch, and the hatch can be easily opened and closed. It can be performed.

さらに、アームが水平状態のとき機器搬出入床板の上
面が原子炉格納容器の外側の床面と同レベルとなるよう
に設定されているので、機器搬出入床板の上面に設けら
れたレール上を走行する台車により機器を搬送する際、
この台車を原子炉格納容器の外側の床面上に容易に移動
させることができる。Furthermore, since the upper surface of the equipment loading / unloading floor plate is set to be at the same level as the outer floor surface of the reactor containment vessel when the arm is in the horizontal state, the rail on the upper surface of the equipment loading / unloading floor plate should be installed. When transporting equipment by traveling trolley,
This dolly can be easily moved to the floor surface outside the reactor containment vessel.

そして、機器搬出入床板を水平に配置する際には、開
閉ピットの底面に先端部を有する支持棒により荷重が支
持されるので、機器搬出入床板はその面積をおよび総重
量を小さくすることができる。その結果、施工性に優
れ、また収納状態にある機器搬出入床板を蝶番を中心に
回転して水平に配置する作業を容易に行うことができ
る。When the equipment loading / unloading floorboard is arranged horizontally, the load is supported by the supporting rod having the tip portion on the bottom surface of the opening / closing pit, so that the equipment loading / unloading floorboard can reduce its area and total weight. it can. As a result, the workability is excellent, and it is possible to easily perform the work of rotating the equipment loading / unloading floorboard in the stored state horizontally by rotating it about the hinge.

【図面の簡単な説明】[Brief description of the drawings]

第１図は本発明の一実施例を示す平面図、第２図は第１
図におけるII−II線矢視拡大断面図である。 １……原子炉格納容器、２……機器搬出入トンネル、5
a,5b……機器搬出入ハッチ、８……ピット、10……蝶
番、11a,11b……アーム、12a,12b……プレートブリッ
ジ、13a,13b……支持棒。FIG. 1 is a plan view showing an embodiment of the present invention, and FIG.
FIG. 2 is an enlarged sectional view taken along the line II-II in the figure. 1 ... Reactor containment vessel, 2 ... Equipment loading / unloading tunnel, 5
a, 5b …… Equipment loading / unloading hatch, 8 …… pit, 10 …… hinge, 11a, 11b …… arm, 12a, 12b …… plate bridge, 13a, 13b …… support rod.

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】原子炉格納容器の側壁部に貫通して設けら
れ前記原子炉格納容器の外側の床面と同一レベルに床面
が設定された機器搬出入トンネルを有する原子力発電所
における機器搬出入装置において、前記機器搬出入トン
ネルの外側に蝶番を中心に水平方向に開閉する機器搬出
入ハッチを設置し、この機器搬出入ハッチの前方の前記
原子炉格納容器の床に前記機器搬出入ハッチの開閉ピッ
トを形成し、かつこの開閉ピットに沿う床面に設けられ
蝶番を中心に回転するアームと、このアームの蝶番側の
端部と対向する端部に一体的に設けられた機器搬出入床
板と、この機器搬出入床板の上面に設けられ機器を搬送
する台車が走行するレールと、前記開閉ピットの底面に
蝶番を中心に開閉可能に設けられた支持棒とを具備し、
さらに前記アームが水平状態のときに前記機器搬出入床
板の荷重を前記支持棒が直立状態で支持するとともに、
前記機器搬出入床板の上面が前記原子炉格納容器の外側
の床面と同レベルとなることを特徴とする原子力発電所
における機器搬出入装置。1. A device unloading at a nuclear power plant having a device loading / unloading tunnel which is provided so as to penetrate through a side wall of the reactor containment vessel and whose floor surface is set at the same level as the floor surface outside the reactor containment vessel. In the loading / unloading device, an equipment loading / unloading hatch that opens and closes horizontally around a hinge is installed outside the equipment loading / unloading tunnel, and the equipment loading / unloading hatch is provided on the floor of the containment vessel in front of the equipment loading / unloading hatch. The opening / closing pit of the arm and the arm that is installed on the floor along the opening / closing pit and rotates around the hinge, and the equipment that is integrally provided at the end of the arm facing the hinge side end A floor board, a rail provided on the top surface of the equipment loading / unloading floor board on which a trolley for transporting equipment travels, and a support rod provided on the bottom surface of the opening / closing pit so as to be openable / closable around a hinge,
Further, when the arm is in a horizontal state, the support bar supports the load of the equipment loading / unloading floorboard in an upright state,
The equipment loading / unloading device in a nuclear power plant, wherein the top surface of the equipment loading / unloading floor plate is at the same level as the floor surface outside the reactor containment vessel.
JP1262049A 1989-10-09 1989-10-09 Equipment loading and unloading equipment at nuclear power plants Expired - Lifetime JP2667020B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1262049A JP2667020B2 (en) 1989-10-09 1989-10-09 Equipment loading and unloading equipment at nuclear power plants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1262049A JP2667020B2 (en) 1989-10-09 1989-10-09 Equipment loading and unloading equipment at nuclear power plants

Publications (2)

Publication Number Publication Date
JPH03123890A JPH03123890A (en) 1991-05-27
JP2667020B2 true JP2667020B2 (en) 1997-10-22

Family

ID=17370325

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1262049A Expired - Lifetime JP2667020B2 (en) 1989-10-09 1989-10-09 Equipment loading and unloading equipment at nuclear power plants

Country Status (1)

Country Link
JP (1) JP2667020B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5942253B2 (en) * 2012-05-08 2016-06-29 日立Ｇｅニュークリア・エナジー株式会社 Gasket cooling device for reactor containment hatch

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6283996U (en) * 1985-11-13 1987-05-28

Also Published As

Publication number Publication date
JPH03123890A (en) 1991-05-27

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