PLANT WITH PIPING THAT HAS BRANCH AND NUCLEAR POWER PLANT OF BOILING-WATER TYPE

PROBLEM TO BE SOLVED: To provide a plant with piping which has a branch that further reduces the pressure fluctuation, based on acoustic resonance. SOLUTION: The plant with the piping that has the branch 11 is a BWR plant 1, for example. It includes a reactor 2, main steam pipe 10, turbine 12, conde...

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Bibliographic Details
Main Authors OKUYAMA KEITA, KATO MASAMI, TAKAHASHI SHIRO, HIDAKA AKITAKA
Format Patent
LanguageEnglish
Published 10.12.2009
Subjects
ACTUATING-FLOATS
BLASTING
COCKS
DEVICES FOR VENTING OR AERATING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
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 POWER PLANT
NUCLEAR REACTORS
PHYSICS
REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION
TAPS
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
THERMAL INSULATION IN GENERAL
VALVES
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To provide a plant with piping which has a branch that further reduces the pressure fluctuation, based on acoustic resonance. SOLUTION: The plant with the piping that has the branch 11 is a BWR plant 1, for example. It includes a reactor 2, main steam pipe 10, turbine 12, condenser and feedwater piping. The steam generated in the reactor 2 is supplied to the turbine 12 by way of the main steam pipe 10. A vent pipe 15 with a steam relief safety valve 13 is joined to the main steam pipe 10. The joint, located between the vent pipe 15 and the main steam pipe 10, or the cross-sectional area of a flow channel in the branch 11 of the main steam pipe 10 and the vent pipe 15, is larger than those of parts other than the branch 11 of the main steam pipe 10. The expansion of the cross-sectional area of the flow channel of the branch 11 slows down the speed of the steam 16 flowing in the branch 11 and restrains acoustic resonance from occurring there, resulting in the reduction of the pressure fluctuation in the main steam pipe 10. COPYRIGHT: (C)2010,JPO&INPIT
Bibliography:Application Number: JP20080139262