METHOD AND APPARATUS FOR REPAIRING PIPING FOR JET PUMP MEASUREMENT

PROBLEM TO BE SOLVED: To provide a method for repairing piping for jet pump measurement, with which a break event that occurs in a lower portion of a jet pump in which piping for measurement is installed in a horizontal direction under water can be handled and repair work in a narrow part is facilit...

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Bibliographische Detailangaben
Hauptverfasser:	ADACHI HIROYUKI, MINATO YUKI, MIHASHI TADAHIRO, WATANABE KATSUNOBU, KATAYAMA YOSHINORI, MORI HIROSHI, MATSUKAWA KOZUE, MIYAMURA SATOSHI, KINUGASA KUNIHIKO, YAMAMOTO SATOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS NUCLEAR ENGINEERING NUCLEAR PHYSICS NUCLEAR REACTORS PHYSICS REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for repairing piping for jet pump measurement, with which a break event that occurs in a lower portion of a jet pump in which piping for measurement is installed in a horizontal direction under water can be handled and repair work in a narrow part is facilitated.SOLUTION: According to an embodiment, a method for repairing piping for jet pump measurement is provided for repairing a broken part of piping for measurement installed in a lower portion of a jet pump which is provided in reactor water within a reactor pressure vessel in a horizontal direction. The method includes a support member fixing step S1 for fixing a support member to the jet pump in the vicinity of the remaining piping for measurement, a connector mounting step S2 for mounting a measurement piping connector, to the support member, equipped with a piping repair pipe with which connecting pipes are fitted into both ends, after the support member fixing step S1, and a connection step S3 for connecting the remaining piping for measurement and the connecting pipes by using the measurement piping connector after the connector mounting step S2.