JP2014199218A - Vibration control device and fuel rack with the same - Google Patents

Vibration control device and fuel rack with the same Download PDF

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Publication number
JP2014199218A
JP2014199218A JP2013074967A JP2013074967A JP2014199218A JP 2014199218 A JP2014199218 A JP 2014199218A JP 2013074967 A JP2013074967 A JP 2013074967A JP 2013074967 A JP2013074967 A JP 2013074967A JP 2014199218 A JP2014199218 A JP 2014199218A
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fuel
damping device
racks
vibration damping
rack
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亮 伊東
Ryo Ito
亮 伊東
片山　洋
Hiroshi Katayama
洋 片山
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Toshiba Corp
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Toshiba Corp
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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
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

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  • Vibration Prevention Devices (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a vibration control device that can be easily mounted on and removed from fuel racks.SOLUTION: A vibration control device 1 is provided by the insertion and fixing of a long rod shaped member in a crisscross gap formed by mutually adjacent four fuel racks 10 among a plurality of fuel racks 10 mutually provided with predetermined gaps in a spent fuel pool 11.

Description

本発明は、燃料プール内に設けられる燃料ラックを制振する制振装置およびそれを用いた燃料ラックに関する。   The present invention relates to a vibration damping device that dampens a fuel rack provided in a fuel pool and a fuel rack using the vibration damping device.

原子力発電施設において使用済燃料ならびに使用前燃料は、燃料プール内に設けられた燃料ラック内に収容されて保管される。この燃料ラックは、安全上重要な機器であるため万が一の地震等における健全性が求められる。そこで、燃料ラック同士を連結することにより剛性を高め、耐震性を向上させる技術が開発されている（例えば、特許文献１、２参照。）。   In a nuclear power generation facility, spent fuel and pre-use fuel are stored and stored in a fuel rack provided in the fuel pool. Since this fuel rack is an important device for safety, soundness in the event of an earthquake is required. In view of this, techniques have been developed to increase rigidity and improve earthquake resistance by connecting fuel racks (see, for example, Patent Documents 1 and 2).

特開平９−１０１３９１号公報JP-A-9-101391 特開平８−３３４５９６号公報JP-A-8-334596

上述した特許文献１、２をはじめとする、燃料ラック間を連結して剛性を高める方法では、燃料ラックを交換するリラッキング作業等において、連結部材の取り外しおよび取り付け作業が発生するため、作業効率が低下するおそれがある。   In the methods such as Patent Documents 1 and 2 described above, which increase the rigidity by connecting the fuel racks, the removal and attachment work of the connecting member occurs in the re-racking work for exchanging the fuel racks. May decrease.

そこで本発明は、簡易に取り付け、取り外しができる燃料ラックの制振装置およびそれを用いた燃料ラック装置の提供を目的とする。   Accordingly, an object of the present invention is to provide a vibration control device for a fuel rack that can be easily attached and detached, and a fuel rack device using the same.

上記目的を達成するために、本発明の制振装置は、使用済燃料プール内に互いに所定のギャップをもって設けられる複数の燃料ラックのうち、互いに隣り合う４つの燃料ラックにより形成される十字のギャップに、長棒形状部材を挿嵌して設けられることを特徴とする。   In order to achieve the above object, the vibration damping device of the present invention is a cross gap formed by four fuel racks adjacent to each other among a plurality of fuel racks provided with a predetermined gap in the spent fuel pool. In addition, a long bar-shaped member is inserted and provided.

さらに上記目的を達成するために、本発明の制振装置は、使用済燃料プール内に互いに所定のギャップをもって設けられる複数の燃料ラックのうち、互いに隣り合う２つの燃料ラックの互いに隣接する長手側面に接触して、長棒形状部材を挿嵌して設けられることを特徴とする。   In order to achieve the above object, the vibration damping device of the present invention is a longitudinal side surface adjacent to each other of two fuel racks adjacent to each other among a plurality of fuel racks provided in the spent fuel pool with a predetermined gap. It is characterized by being provided by inserting and inserting a long bar-shaped member.

本発明によれば、燃料ラックの制振装置を簡易に取り付け、取り外しができる。   According to the present invention, the vibration damping device for the fuel rack can be easily attached and detached.

本発明の第１の実施形態に係る制振装置を用いた燃料ラックの上方鳥瞰図。The upper bird's-eye view of the fuel rack using the damping device concerning a 1st embodiment of the present invention. 本発明の第１の実施形態に係る制振装置を用いた燃料ラックの上面図。1 is a top view of a fuel rack using a vibration damping device according to a first embodiment of the present invention. 本発明の第１の実施形態に係る制振装置の斜視図。1 is a perspective view of a vibration damping device according to a first embodiment of the present invention. 本発明の第２の実施形態に係る制振装置を用いた燃料ラックの上面図。The top view of the fuel rack using the damping device concerning a 2nd embodiment of the present invention. 本本発明の第２の実施形態に係る制振装置の概略図。Schematic of the vibration damping device which concerns on the 2nd Embodiment of this invention. 本本発明の第２の実施形態に係る制振装置の概略図。Schematic of the vibration damping device which concerns on the 2nd Embodiment of this invention. 本発明の第４の実施形態に係る振装置を用いた燃料ラックの上面図。The top view of the fuel rack using the vibration apparatus which concerns on the 4th Embodiment of this invention. 本発明の第４の実施形態に係る制振装置の支持棒を用いた変形例を示す概略図であり、（a）は横面図、（ｂ）は上面図。It is the schematic which shows the modification using the support rod of the damping device which concerns on the 4th Embodiment of this invention, (a) is a side view, (b) is a top view. 本発明の第５の実施形態に係る制振装置を用いた燃料ラックの上面図。The top view of the fuel rack using the damping device concerning a 5th embodiment of the present invention.

以下、本発明の実施形態を説明する。   Embodiments of the present invention will be described below.

（第１の実施形態）
（構成）
以下、本発明の第１の実施形態に係る制振装置について図１から図３を参照して説明する。図１は、本発明の第１の実施形態に係る制振装置を用いた燃料ラックの上方鳥瞰図である。 (First embodiment)
(Constitution)
Hereinafter, a vibration damping device according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 3. FIG. 1 is a top bird's-eye view of a fuel rack using the vibration damping device according to the first embodiment of the present invention.

使用済燃料プール１１は、プール水（図示せず）が満たされており、複数の燃料ラック１０が使用済燃料プール１１の底面から立設して設けられる。複数の燃料ラック２は、互いに離間して所定のギャップをもって配置されている。燃料ラック２内に上方から使用済燃料ならびに使用前燃料（図示せず）が収容される。   The spent fuel pool 11 is filled with pool water (not shown), and a plurality of fuel racks 10 are provided upright from the bottom surface of the spent fuel pool 11. The plurality of fuel racks 2 are spaced apart from each other and arranged with a predetermined gap. Spent fuel and pre-use fuel (not shown) are accommodated in the fuel rack 2 from above.

図２は、本発明の第１の実施形態に係る制振装置を用いた燃料ラックの上面図である。図３は、本発明の第１の実施形態に係る制振装置の斜視図である。制振装置１は、互いに隣り合う４つの燃料ラック１０により形成される十字のギャップに上方から挿嵌される長棒形状部材であり、長手方向に垂直な断面が十字形状である。さらに制振装置１は、弾性を有する部材とすることができる。また、制振装置１に燃料プール１１内の水の循環を促すように適宜、貫通孔やスリットを設けてもよい。   FIG. 2 is a top view of a fuel rack using the vibration damping device according to the first embodiment of the present invention. FIG. 3 is a perspective view of the vibration damping device according to the first embodiment of the present invention. The vibration damping device 1 is a long bar-shaped member that is inserted from above into a cross gap formed by four fuel racks 10 adjacent to each other, and a cross section perpendicular to the longitudinal direction has a cross shape. Furthermore, the vibration damping device 1 can be a member having elasticity. Moreover, you may provide a through-hole and a slit suitably so that the vibration damping device 1 may promote the circulation of the water in the fuel pool 11.

（作用）
以下、本発明の第１の実施形態の作用について説明する。 (Function)
The operation of the first embodiment of the present invention will be described below.

制振装置１は、上方から挿嵌されて複数の燃料ラック１０に挟み込まれた状態で設置され、燃料ラック１０の横方向の変位に対して支持を行うとともに、燃料ラック１０同士のギャップの水平方向の流路を塞ぐ。   The vibration damping device 1 is installed in a state of being inserted from above and sandwiched between the plurality of fuel racks 10, supports the lateral displacement of the fuel racks 10, and horizontally covers the gaps between the fuel racks 10. Block the direction flow path.

ここで、隣り合う燃料ラック１０間に相対加速度が生じた場合、ギャップ内のプール水による抵抗力が燃料ラック１０に対して生じる。この抵抗力により燃料ラック１０の制振効果が得られるが、ギャップからプール水が漏れやすい場合、大きな抵抗力を得ることが難しい。そこで、制振装置１を設置してギャップを塞ぐことよって、ギャップ内のプール水をギャップ内に留め、より大きい抵抗力を得ることができ。   Here, when relative acceleration is generated between the adjacent fuel racks 10, a resistance force due to pool water in the gap is generated for the fuel racks 10. Although the vibration damping effect of the fuel rack 10 can be obtained by this resistance force, it is difficult to obtain a large resistance force when pool water easily leaks from the gap. Therefore, by installing the vibration damping device 1 and closing the gap, pool water in the gap can be retained in the gap, and a greater resistance can be obtained.

さらに制振装置１を弾性部材とし、圧縮された状態で設置することによって、地震動による燃料ラック１０の相互変位によってギャップ間距離が変化した場合にも追従して流路を塞ぐことが可能である。   Furthermore, by installing the vibration damping device 1 as an elastic member in a compressed state, it is possible to follow the flow path even when the distance between the gaps changes due to the mutual displacement of the fuel rack 10 due to earthquake motion. .

燃料ラック１０を交換するリラッキング作業等においては、交換対象となる燃料ラック１０の周囲の制振装置１を上方に引抜いて取り外す。制振装置１の上部に取り付け、取り外し用の吊り金具を設けることにより、クレーンによって容易に取り付け、取り外しをすることができる。さらにギャップ内の制振装置１を浮き上がらないように、燃料ラック１０に可動式の固定つめを設けてもよい。   In a reracing operation or the like for replacing the fuel rack 10, the vibration damping device 1 around the fuel rack 10 to be replaced is pulled upward and removed. Attaching to and removing from the upper part of the vibration damping device 1 enables easy attachment and removal with a crane. Further, a movable fixed pawl may be provided in the fuel rack 10 so as not to lift the vibration damping device 1 in the gap.

（効果）
本発明の第１の実施形態によれば、制振装置１を燃料ラック１０へ簡易に取り付け、取り外しができる。さらに制振装置１によってギャップを塞ぎ、燃料ラック１０の制振を行うことができる。 (effect)
According to the first embodiment of the present invention, the vibration damping device 1 can be easily attached to and detached from the fuel rack 10. Furthermore, the vibration control device 1 can close the gap and perform vibration control of the fuel rack 10.

（第２の実施形態）
（構成）
以下、本発明の第２の実施形態に係る制振装置について図４および図５を参照して説明する。第１の実施形態に係る制振装置の各部と同一部分には同一符号を付し、同一の構成についての説明は省略する。 (Second Embodiment)
(Constitution)
Hereinafter, a vibration damping device according to a second embodiment of the present invention will be described with reference to FIGS. 4 and 5. The same parts as those of the vibration damping device according to the first embodiment are denoted by the same reference numerals, and the description of the same configuration is omitted.

図４は、本発明の第２の実施形態に係る制振装置を用いた燃料ラックの上面図である。図５は、本発明の第２の実施形態に係る制振装置の概略図である。第２の実施形態の制振装置１は、２つの燃料ラック１０の長手側面に両側面を接触可能な長板形状であり、さらギャップ方向に伸縮可能な蛇腹形状とすることができる。なお制振装置１は、長板形状だけでなく弾性を有する長棒形状部材としてもよい。   FIG. 4 is a top view of a fuel rack using the vibration damping device according to the second embodiment of the present invention. FIG. 5 is a schematic view of a vibration damping device according to the second embodiment of the present invention. The vibration damping device 1 of the second embodiment has a long plate shape in which both side surfaces can be in contact with the longitudinal side surfaces of the two fuel racks 10, and can also have a bellows shape that can expand and contract in the gap direction. The vibration damping device 1 may be not only a long plate shape but also a long bar shape member having elasticity.

２つの燃料ラック１０間のギャップに制振装置１を上方から挿嵌し、ギャップ３内の水平方向の流路を塞ぐように設置する。制振装置１は燃料ラック２に直接固定されておらず、反力により両側の燃料ラック１０を付勢し、２つの燃料ラック１０に挟まれて設置される。   The damping device 1 is inserted into the gap between the two fuel racks 10 from above, and is installed so as to close the horizontal flow path in the gap 3. The vibration damping device 1 is not directly fixed to the fuel rack 2 but is urged by the reaction force on the fuel racks 10 on both sides and installed between the two fuel racks 10.

（作用）
以下、本発明の第２の実施形態の作用について説明する。 (Function)
The operation of the second embodiment of the present invention will be described below.

制振装置１は、地震時の２つの燃料ラック１０の相互変位を支持する。さらに、制振装置１をギャップ内のプール水を取り囲むように設置することによって、ギャップ内の流体が外方にギャップに漏れ出ることを抑制する。さらに２つの燃料ラック１０の向かい合う長手側面の各々に、ばね形状の制振装置１を差し込むガイドレールを設けることによって、より簡易に制振装置１を設置することができる。   The vibration damping device 1 supports the mutual displacement of the two fuel racks 10 during an earthquake. Furthermore, by installing the vibration damping device 1 so as to surround the pool water in the gap, the fluid in the gap is prevented from leaking outward into the gap. Furthermore, by providing a guide rail into which the spring-shaped damping device 1 is inserted on each of the opposing longitudinal side surfaces of the two fuel racks 10, the damping device 1 can be installed more easily.

（効果）
本発明の第２の実施形態によれば、長棒形状部材または長板形状の制振装置１を容易に設置、取り外しができるとともに、２つの燃料ラック１０を支持し、さらにギャップのプール水の流通を阻害することができる。 (effect)
According to the second embodiment of the present invention, the long bar-shaped member or the long plate-shaped vibration damping device 1 can be easily installed and removed, supports the two fuel racks 10, and further pool water in the gap. Distribution can be hindered.

（第３の実施形態）
（構成）
以下、本発明の第３の実施形態に係る制振装置について図６を参照して説明する。第１の実施形態に係る制振装置の各部と同一部分には同一符号を付し、同一の構成についての説明は省略する。 (Third embodiment)
(Constitution)
Hereinafter, a vibration damping device according to a third embodiment of the present invention will be described with reference to FIG. The same parts as those of the vibration damping device according to the first embodiment are denoted by the same reference numerals, and the description of the same configuration is omitted.

図６は、本発明の第３の実施形態に係る制振装置の上面図である。第３の実施形態において、燃料ラック１０への取り付け前の制振装置１は、ガイド３内に弾性部材２が収容された状態である。ガイド３は、４つの燃料ラック１０によって形成される十字のギャップ形状に外周を合わせた筒形状である。弾性部材２は、長手方向に垂直な断面が十字形状の長棒形状部材である。   FIG. 6 is a top view of the vibration damping device according to the third embodiment of the present invention. In the third embodiment, the vibration damping device 1 before being attached to the fuel rack 10 is in a state where the elastic member 2 is accommodated in the guide 3. The guide 3 has a cylindrical shape in which the outer periphery is matched with the cross gap shape formed by the four fuel racks 10. The elastic member 2 is a long bar-shaped member whose cross section perpendicular to the longitudinal direction has a cross shape.

（作用）
以下、本発明の第３の実施形態の作用について説明する。 (Function)
The operation of the third embodiment of the present invention will be described below.

制振装置１の燃料ラック１０への取り付け時において、ガイド３をギャップに挿入した後、ガイド２のみを上部に引き抜き、内部の弾性部材２のみをギャップ内に配置する。弾性部材２は、ガイド２の拘束が解かれ、周囲の燃料ラック１０に膨張して密着する。   When the vibration damping device 1 is attached to the fuel rack 10, after the guide 3 is inserted into the gap, only the guide 2 is pulled upward, and only the internal elastic member 2 is disposed in the gap. The elastic member 2 expands and comes into close contact with the surrounding fuel rack 10 after the restraint of the guide 2 is released.

（効果）
本発明の第３の実施形態によれば、弾性部材４をギャップ３に設置することが可能となり、取付け作業が簡易となる。なお、断面が十字形状の弾性部材２だけでなく、第２の実施形態に示すばね形状の制振装置１の場合においても、ガイド２に長板ばねを縮めた状態で収め、ガイド２を燃料ラック１０間に上方から挿嵌した後に、ガイド２を取り外すことによって、長板ばねのみを燃料ラック１０間に配置することができる。 (effect)
According to the third embodiment of the present invention, it is possible to install the elastic member 4 in the gap 3 and the mounting work is simplified. Note that not only in the cross-shaped elastic member 2 but also in the case of the spring-shaped damping device 1 shown in the second embodiment, the guide 2 is stored in the guide 2 in a state in which the long plate spring is contracted. After the guides 2 are removed after being inserted between the racks 10 from above, only the long leaf springs can be disposed between the fuel racks 10.

（第４の実施形態）
（構成）
以下、本発明の第４の実施形態に係る制振装置について図７および図８を参照して説明する。第１の実施形態に係る制振装置の各部と同一部分には同一符号を付し、同一の構成についての説明は省略する。 (Fourth embodiment)
(Constitution)
Hereinafter, a vibration damping device according to a fourth embodiment of the present invention will be described with reference to FIGS. 7 and 8. The same parts as those of the vibration damping device according to the first embodiment are denoted by the same reference numerals, and the description of the same configuration is omitted.

図７は、本発明の第４の実施形態に係る振装置を用いた燃料ラックの上面図である。第４の実施形態の制振装置１は、隣り合う燃料ラック１０間のギャップに配置され、内部に流体を封入することができる容器形状である。制振装置１は、流体封入口（図示せず。）を有し、外部から流体封入口によって流体を封入し膨らませ、流体を排出し縮ませることができる。   FIG. 7 is a top view of a fuel rack using a vibration device according to the fourth embodiment of the present invention. The vibration damping device 1 according to the fourth embodiment is disposed in a gap between adjacent fuel racks 10 and has a container shape that can enclose a fluid therein. The vibration damping device 1 has a fluid sealing port (not shown), and can enclose and inflate the fluid from the outside by the fluid sealing port, and can discharge and contract the fluid.

（作用）
以下、本発明の第４の実施形態の作用について説明する。制振装置１の容器内の流体の量が少ない状態または流体のない状態で、制振装置１をギャップに挿入する。ギャップへの挿入後に容器７内に流体を封入し容器７を膨らませ、両側の燃料ラック１０に密着させる。 (Function)
The operation of the fourth embodiment of the present invention will be described below. The damping device 1 is inserted into the gap in a state where the amount of fluid in the container of the damping device 1 is small or no fluid exists. After insertion into the gap, a fluid is sealed in the container 7 and the container 7 is inflated and brought into close contact with the fuel racks 10 on both sides.

さらに本実施形態は、以下の変形が可能である。図８は、本発明の第４の実施形態に係る制振装置の支持棒を用いた変形例を示す概略図であり、（a）は横面図、（ｂ）は上面図である。この場合、ギャップに挿入する際に位置決め等の作業をし易くするため、容器６側面に支持棒５を設ける構成とする。さらに燃料ラック１０の長手側面に支持棒５を上方から滑り入れるスライドレールを設けることによって容易に制振装置１を設置することができる。   Furthermore, the present embodiment can be modified as follows. FIG. 8 is a schematic view showing a modification using the support rod of the vibration damping device according to the fourth embodiment of the present invention, where (a) is a lateral view and (b) is a top view. In this case, the support bar 5 is provided on the side surface of the container 6 in order to facilitate positioning and the like when inserted into the gap. Furthermore, the vibration damping device 1 can be easily installed by providing a slide rail for sliding the support rod 5 from above on the longitudinal side surface of the fuel rack 10.

（効果）
本発明の第４の実施形態によれば、流体の封入、排水により容器７の膨張収縮の調節を行い、制振装置１の取り付けを容易に行うことができる。なお、２つの燃料ラック１０間に配置する形状だけでなく、第１の実施形態のように４つの燃料ラック１０間の十字のギャップに挿入可能な形状としてもよい。 (effect)
According to the fourth embodiment of the present invention, the damping device 1 can be easily attached by adjusting the expansion and contraction of the container 7 by fluid sealing and drainage. Not only the shape arranged between the two fuel racks 10, but also a shape that can be inserted into the cross gap between the four fuel racks 10 as in the first embodiment.

（第５の実施形態）
（構成）
以下、本発明の第５の実施形態に係る制振装置について図９を参照して説明する。第１の実施形態に係る制振装置の各部と同一部分には同一符号を付し、同一の構成についての説明は省略する。 (Fifth embodiment)
(Constitution)
Hereinafter, a vibration damping device according to a fifth embodiment of the present invention will be described with reference to FIG. The same parts as those of the vibration damping device according to the first embodiment are denoted by the same reference numerals, and the description of the same configuration is omitted.

図９は、ｃである。第５の実施形態の制振装置は、上方部材７をさらに有する。上方部材７は、燃料ラック１０の間に配置される長棒形状部材の上方において、長板形状を水平にして長棒形状部材の上端を橋渡すように設けられる。   FIG. 9 is c. The vibration damping device of the fifth embodiment further includes an upper member 7. The upper member 7 is provided above the long bar-shaped member disposed between the fuel racks 10 so that the long plate shape is horizontal and the upper end of the long bar-shaped member is bridged.

（作用）
以下、本発明の第５の実施形態の作用について説明する。燃料ラック１０の間に配置される長棒形状部材は、水平方向のプール水の流通を抑制する。さらに上方部材７は、制振装置１から上方への流体の漏れ出しを抑制する。さらに上方部材７を複数の制振装置１を跨ぐように設けることによって安定性を高め、複数の制振装置ならびに上方部材によって流体を閉じ込め、より流体の漏洩を防ぐことができる。 (Function)
The operation of the fifth embodiment of the present invention will be described below. The long bar-shaped members arranged between the fuel racks 10 suppress the horizontal pool water flow. Further, the upper member 7 suppresses the leakage of fluid upward from the vibration damping device 1. Furthermore, by providing the upper member 7 so as to straddle the plurality of vibration damping devices 1, the stability can be improved, and the fluid can be confined by the plurality of vibration damping devices and the upper member, thereby further preventing fluid leakage.

（効果）
本発明の第５の実施形態によれば、制振装置１によって水平方向に加え、上方部材７によって上方への流体のギャップからの漏れを防ぐことにより、流体による抵抗力を得ることができる。 (effect)
According to the fifth embodiment of the present invention, in addition to the horizontal direction by the vibration damping device 1, the upper member 7 prevents leakage from the fluid gap upward, whereby a resistance force by the fluid can be obtained.

１・・・制振装置
２・・・弾性部材
３・・・ガイド
５・・・支持棒
６・・・容器
７・・・上方部材
１０・・・燃料ラック
１１・・・燃料プール DESCRIPTION OF SYMBOLS 1 ... Damping device 2 ... Elastic member 3 ... Guide 5 ... Support bar 6 ... Container 7 ... Upper member 10 ... Fuel rack 11 ... Fuel pool

Claims (9)

使用済燃料プール内に互いに所定のギャップをもって設けられる複数の燃料ラックのうち、互いに隣り合う４つの燃料ラックにより形成される十字のギャップに、長棒形状部材を挿嵌して設けられることを特徴とする燃料ラックの制振装置。 Among the plurality of fuel racks provided with a predetermined gap in the spent fuel pool, a long bar-shaped member is inserted into a cross gap formed by four fuel racks adjacent to each other. A vibration control device for a fuel rack. 使用済燃料プール内に互いに所定のギャップをもって設けられる複数の燃料ラックのうち、互いに隣り合う２つの燃料ラックの互いに隣接する長手側面に接触して、長棒形状部材を挿嵌して設けられることを特徴とする燃料ラックの制振装置。 Among the plurality of fuel racks provided with a predetermined gap in the spent fuel pool, the long rod-shaped member is provided by being inserted into contact with the adjacent longitudinal side surfaces of two adjacent fuel racks. A damping device for a fuel rack characterized by the above. 前記長棒形状部材は、弾性部材からなることを特徴とする請求項１または請求項２に記載の燃料ラックの制振装置。 3. The fuel rack damping device according to claim 1, wherein the long bar-shaped member is made of an elastic member. 前記長棒形状部材は、内部に流体を封入可能な容器であることを特徴とする請求項１または請求項２に記載の燃料ラックの制振装置。 3. The vibration damping device for a fuel rack according to claim 1, wherein the long bar-shaped member is a container capable of enclosing a fluid therein. 4. 使用済燃料プール内に互いに所定のギャップをもって設けられる複数の燃料ラックのうち、互いに隣り合う２つの燃料ラックの互いに隣接する長手側面に接触して、長板形状を挿嵌して設けられることを特徴とする燃料ラックの制振装置。 Among the plurality of fuel racks provided in the spent fuel pool with a predetermined gap, the two fuel racks adjacent to each other are in contact with the adjacent longitudinal side surfaces and are provided by inserting a long plate shape. A characteristic damping device for a fuel rack. 前記長板形状は、２つの燃料ラックに対する方向に伸縮可能なばねであることを特徴とする請求項５に記載の燃料ラックの制振装置 6. The damping device for a fuel rack according to claim 5, wherein the long plate shape is a spring that can expand and contract in a direction relative to two fuel racks. 前記長棒形状部材または長板部材は、ガイドに収容されて前記燃料ラック間に挿入され、ガイドを引き抜いて配置することを特徴とする請求項１乃至請求項６の何れか一項に記載の燃料ラックの制振装置。 The long bar-shaped member or the long plate member is accommodated in a guide and inserted between the fuel racks, and the guide is pulled out and disposed. Damping device for fuel rack. 前記燃料ラック間のギャップに長板形状からなる上方部材をさらに設けたことを特徴とする請求項１乃至請求項７の何れか一項記載の制振装置。 8. The vibration damping device according to claim 1, further comprising an upper member having a long plate shape provided in a gap between the fuel racks. 9. 請求項１乃至請求項８の何れか一項記載の制振装置を設けたことを特徴とする燃料ラック。 A fuel rack comprising the vibration damping device according to any one of claims 1 to 8.
JP2013074967A 2013-03-29 2013-03-29 Vibration control device and fuel rack with the same Pending JP2014199218A (en)

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JPS62190494A (en) * 1986-02-17 1987-08-20 株式会社日立製作所 Spent fuel storage rack
JPS632196U (en) * 1986-06-23 1988-01-08
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JP2019007792A (en) * 2017-06-22 2019-01-17 三菱重工業株式会社 Nuclear fuel storage facility

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