JP6803635B2 - 原子力発電所内のひび割れた溶接部を構造的に代替する装置および方法 - Google Patents
原子力発電所内のひび割れた溶接部を構造的に代替する装置および方法 Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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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
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Description
Claims (19)
- 原子力プラント内のひび割れた溶接部を構造的に代替するように構成された装置であって、
第1の本体部であって、第1の把持部と、前記第1の本体部の中央開口部を包囲する複数の対向するレールとを含み、前記レールのうちの少なくとも1本は、その内部を通って延びるとともに実質的に球状の座部の形態にあるアクセス開口部を含む、第1の本体部と、
その内部に前記第1の本体部と連動するように前記第1の本体部の前記レールと摺動可能に係合するように構成される溝を画定する第2の本体部であって、前記第2の本体部は第2の把持部を含み、前記第2の把持部は、その内部に画定されるとともに実質的にT字状にある前記第2の本体部のアクセス孔を含む、第2の本体部と、
調節部であって、第1の端部と第2の端部とを有するとともに長尺状をなす本体を含み、前記第2の端部に端壁部を含み、前記長尺状本体の一部と前記端壁部とが前記第2の本体部のアクセス孔に収容され、これにより、前記第1の本体部および前記第2の本体部が摺動可能に係合したときに、前記第2の本体部が前記調節部の回転を防止するように構成される、調節部と、
前記第1の本体部のアクセス孔内に受承されるように構成されるボールの形態のナットを含む保持部であって、前記長尺状本体の前記第1の端部は前記アクセス孔を通って前記ナット内に延び、これにより、前記装置は、実質的に自己整列するように構成される、保持部とを備え、
前記調節部が、前記摺動可能に係合した第1および第2の本体部に力を及ぼすように構成され、
前記調節部が、前記摺動可能に係合した第1および第2の本体部に及ぼす前記力を増減させるように更に構成され、
前記調節部が前記摺動可能に係合した第1および第2の本体部に及ぼす前記力を増大させると、前記第1の把持部と前記第2の把持部との間の距離が減少する、装置。 - 前記調節部が、前記第1の把持部と前記第2の把持部との間の前記距離が増大するのを防止するように更に構成される、請求項1に記載の装置。
- 前記保持部が、前記第1の把持部と前記第2の把持部との間の前記距離が増大するのを防止するために、前記調節部と相互作用するように構成される、請求項1に記載の装置。
- 前記装置は、前記第1の本体部および前記第2の本体部が互いに真っ直ぐに整列していないときに、前記調節部が前記摺動可能に係合した前記第1の本体部および前記第2の本体部に及ぼす前記力を増大させると、前記第1の本体部および前記第2の本体部が互いにより真っ直ぐに整列するように更に構成される、請求項1に記載の装置。
- 前記第1の本体部および前記調節部は、前記第1の本体部および前記第2の本体部が互いに真っ直ぐに整列していないときに、前記調節部が前記摺動可能に係合した前記第1の本体部および前記第2の本体部に及ぼす前記力を増大させると、前記第1の本体部および前記第2の本体部が互いにより真っ直ぐに整列するように構成される、請求項1に記載の装置。
- 前記第1の本体部がアクセス孔を含み、前記調節部が前記第2の本体部から前記アクセス孔を通って延びるように構成される、請求項1に記載の装置。
- 前記アクセス孔および前記調節部は、前記第1の本体部および前記第2の本体部が互いに真っ直ぐに整列していないときに、前記調節部が前記摺動可能に係合した前記第1の本体部および前記第2の本体部に及ぼす前記力を増大させると、前記第1の本体部および前記第2の本体部が互いにより真っ直ぐに整列するように構成される、請求項6に記載の装置。
- 前記第1の本体部が第1のアクセス孔を含み、前記調節部が前記第2の本体部のアクセス孔から前記第1のアクセス孔を通って延びるように構成される、請求項1に記載の装置。
- 前記調節部は、ねじ山付きスタッドを備え、前記ナットは前記ねじ山付きスタッドがねじ込まれるように構成される、請求項1に記載の装置。
- 前記ねじ山付きスタッドは、前記第2の本体部のアクセス孔から前記第1のアクセス孔を通って延びるように構成され、前記ナットは、前記第1のアクセス孔を通って延びる前記ねじ山付きスタッドがねじ込まれるように構成される、請求項9に記載の装置。
- 前記第1のアクセス孔および前記ナットは、前記第1の本体部および前記第2の本体部が互いに真っ直ぐに整列していないときに、前記第1のアクセス孔を通って延びる前記ねじ山付きスタッドに前記ナットを締め付け、前記摺動可能に係合した前記第1の本体部および前記第2の本体部に及ぼされる前記力を増大させ、これにより、前記第1の本体部および前記第2の本体部が互いにより真っ直ぐに整列するように構成される、請求項10に記載の装置。
- 前記ひび割れた溶接部が、前記原子力プラント内の炉心シュラウドの上部および底部に対する垂直方向である縦方向に配向される、請求項1に記載の装置。
- 前記ひび割れた溶接部が、前記原子力プラント内の炉心シュラウドの上部および底部に対して垂直方向の縦方向シーム溶接部である、請求項1に記載の装置。
- 原子力プラント内のひび割れた溶接部を構造的に代替する方法であって、
第1の本体部と、第2の本体部と、調節部と、保持部とを備える装置であって、前記第1の本体部は、第1の把持部と、前記第1の本体部の中央開口部を包囲する複数の対向するレールとを含み、前記レールのうちの少なくとも1本は、その内部を通って延びるとともに実質的に球状の座部の形態にあるアクセス開口部を含み、
前記第2の本体部は、第2の把持部を含み、前記第2の把持部は、その内部に前記第1の本体部と連動するように前記第1の本体部の前記レールと摺動可能に係合するように構成される溝を画定し、前記第2の本体部は、その内部に画定されるとともに実質的にT字状にある前記第2の本体部のアクセス孔を含み、
前記調節部は、第1の端部と第2の端部とを有するとともに長尺状をなす本体を含み、前記第2の端部に端壁部を含み、前記長尺状本体の一部と前記端壁部とが前記第2の本体部のアクセス孔に収容され、これにより、前記第1の本体部および前記第2の本体部が摺動可能に係合したときに、前記第2の本体部が前記調節部の回転を防止するように構成され、
前記保持部は、前記第1の本体部のアクセス孔内に受承されるように構成されるボールの形態のナットを含み、前記長尺状本体の前記第1の端部は前記アクセス孔を通って前記ナット内に延び、これにより、前記装置は、実質的に自己整列するように構成され、
前記調節部が、前記摺動可能に係合した第1および第2の本体部に第1の力を及ぼすように構成され、
前記調節部が、前記摺動可能に係合した第1および第2の本体部に及ぼす前記力を増減させるように更に構成され、
前記調節部が前記摺動可能に係合した第1および第2の本体部に及ぼす前記力を増大させると、前記第1の把持部と前記第2の把持部との間の距離が減少する、前記装置を得るステップと、
前記ひび割れた溶接部を含む構造内の前記ひび割れた溶接部の両側に、スロットであって、前記構造を完全に貫通しない前記スロットを形成するステップと、
前記第1の把持部が前記ひび割れた溶接部の第1の側の第1のスロット内に位置し、前記第2の把持部が前記ひび割れた溶接部の第2の側の第2のスロット内に位置するように、前記構造の表面付近に前記装置を配置するステップと、
前記第1の把持部が前記第1のスロットを把持しかつ前記第2の把持部が前記ひび割れた溶接部を構造的に代替する第2の力で前記第2のスロットを把持するまで前記第1の本体部と前記第2の本体部との間の前記距離を減少させるために、前記調節部を用いて、前記摺動可能に係合した第1および第2の本体部に及ぼす前記第1の力を増大させるステップと
を含む方法。 - 前記方法が、前記ひび割れた溶接部から材料を除去するステップを含まない、請求項14に記載の方法。
- 前記方法が、前記ひび割れた溶接部周囲の溶接熱影響部から材料を除去するステップを含まない、請求項14に記載の方法。
- 前記スロットが、前記ひび割れた溶接部周囲の溶接熱影響部の外側に形成される、請求項14に記載の方法。
- 原子力プラント内のひび割れた溶接部を構造的に代替するように構成された装置であって、
第1の把持部を備える第1の本体部と、
第2の本体部であって、第2の把持部と、その内部に画定される前記第2の本体部のアクセス孔とを含み、前記第2の本体部のアクセス孔は実質的にT字状にある、第2の本体部と、
調節部であって、第1の端部と第2の端部とを有するとともに長尺状をなす本体を含み、前記第2の端部に端壁部を含み、前記長尺状本体の一部と前記端壁部とが前記第2の本体部のアクセス孔に収容され、これにより、前記第1の本体部および前記第2の本体部が摺動可能に係合したときに、前記第2の本体部が前記調節部の回転を防止するように構成される、調節部とを備え、
前記第1の本体部が、前記第2の本体部に重なるように構成され、
前記調節部が、前記重なった第1および第2の本体部に力を及ぼすように構成され、
前記調節部が、前記重なった第1および第2の本体部に及ぼす前記力を増減させるように更に構成され、
前記調節部が前記重なった第1および第2の本体部に及ぼす前記力を増大させると、前記第1の把持部と前記第2の把持部との間の距離が減少する、装置。 - 原子力プラント内のひび割れた溶接部を構造的に代替するように構成された装置であって、
第1の把持部を備える第1の本体部と、
第2の本体部であって、第2の把持部と、その内部に画定される前記第2の本体部のアクセス孔とを含み、前記第2の本体部のアクセス孔は実質的にT字状にある、第2の本体部と、
調節部であって、第1の端部と第2の端部とを有するとともに長尺状をなす本体を含み、前記第2の端部に端壁部を含み、前記長尺状本体の一部と前記端壁部とが前記第2の本体部のアクセス孔に収容され、これにより、前記第1の本体部および前記第2の本体部が摺動可能に係合したときに、前記第2の本体部が前記調節部の回転を防止するように構成される、調節部とを備え、
前記第1の本体部が、前記第2の本体部にかみ合うように構成され、
前記調節部が、前記かみ合った第1および第2の本体部に力を及ぼすように構成され、
前記調節部が、前記かみ合った第1および第2の本体部に及ぼす前記力を増減させるように更に構成され、
前記調節部が前記かみ合った第1および第2の本体部に及ぼす前記力を増大させると、前記第1の把持部と前記第2の把持部との間の距離が減少する、装置。
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