VIBRATION SUPPRESSION DEVICE FOR JET PUMP AND JET PUMP
There is provided a vibration suppressing device for a jet pump which is located in a reactor pressure vessel of a boiling water reactor and provided with an inlet mixer pipe coupled to a riser pipe and a diffuser coupled to the inlet mixer pipe by means of a slip joint. The vibration suppressing de...
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| creator | SHIOYAMA TSUTOMU TAKEYAMA DAIKI MATSUKAWA KOZUE WATANABE MASANOBU KINUGASA KUNIHIKO |
| description | There is provided a vibration suppressing device for a jet pump which is located in a reactor pressure vessel of a boiling water reactor and provided with an inlet mixer pipe coupled to a riser pipe and a diffuser coupled to the inlet mixer pipe by means of a slip joint. The vibration suppressing device is provided with an extension sleeve disposed on an upper portion of the diffuser of the jet pump and constitutes an extension flow channel on a downstream side of a forward leak flow in a slip clearance formed between an inner peripheral surface of the diffuser and an outer peripheral surface of the inlet mixer pipe, and the extension sleeve has a shape such that the extension flow channel has a region in which a flow channel width thereof is constant over a predetermined or longer length. |
| format | Patent |
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The vibration suppressing device is provided with an extension sleeve disposed on an upper portion of the diffuser of the jet pump and constitutes an extension flow channel on a downstream side of a forward leak flow in a slip clearance formed between an inner peripheral surface of the diffuser and an outer peripheral surface of the inlet mixer pipe, and the extension sleeve has a shape such that the extension flow channel has a region in which a flow channel width thereof is constant over a predetermined or longer length.</description><language>eng</language><subject>BLASTING ; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC ; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; NUCLEAR ENGINEERING ; NUCLEAR PHYSICS ; NUCLEAR REACTORS ; PHYSICS ; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS ; PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BYUSING INERTIA OF FLUID TO BE PUMPED ; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION ; SIPHONS ; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE ; WEAPONS</subject><creationdate>2015</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20150827&DB=EPODOC&CC=US&NR=2015240838A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20150827&DB=EPODOC&CC=US&NR=2015240838A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SHIOYAMA TSUTOMU</creatorcontrib><creatorcontrib>TAKEYAMA DAIKI</creatorcontrib><creatorcontrib>MATSUKAWA KOZUE</creatorcontrib><creatorcontrib>WATANABE MASANOBU</creatorcontrib><creatorcontrib>KINUGASA KUNIHIKO</creatorcontrib><title>VIBRATION SUPPRESSION DEVICE FOR JET PUMP AND JET PUMP</title><description>There is provided a vibration suppressing device for a jet pump which is located in a reactor pressure vessel of a boiling water reactor and provided with an inlet mixer pipe coupled to a riser pipe and a diffuser coupled to the inlet mixer pipe by means of a slip joint. 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The vibration suppressing device is provided with an extension sleeve disposed on an upper portion of the diffuser of the jet pump and constitutes an extension flow channel on a downstream side of a forward leak flow in a slip clearance formed between an inner peripheral surface of the diffuser and an outer peripheral surface of the inlet mixer pipe, and the extension sleeve has a shape such that the extension flow channel has a region in which a flow channel width thereof is constant over a predetermined or longer length.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | BLASTING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING LIGHTING MECHANICAL ENGINEERING NUCLEAR ENGINEERING NUCLEAR PHYSICS NUCLEAR REACTORS PHYSICS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BYUSING INERTIA OF FLUID TO BE PUMPED PUMPS FOR LIQUIDS OR ELASTIC FLUIDS REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION SIPHONS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS |
| title | VIBRATION SUPPRESSION DEVICE FOR JET PUMP AND JET PUMP |
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