Title:
【発明の名称】原子炉緊急注水装置の蓄圧注水タンク
Document Type and Number:
Japanese Patent JP2915682
Kind Code:
B2
Abstract:
PURPOSE:To obtain an accumulator water tank capable of preventing the flowing of the injected water together with gas by decreasing the generation of jet flow and switching from a large flow to a small flow in a relatively short time. CONSTITUTION:An accumulator water tank 13 communicates with the reactor primary cooling system via a communication pipe having a check valve is provided with a spiral diode provided at the communication pipe inlet in fluid communication relation and inflow pipes for large flow and small flow provided to the spiral diode in fluid communication relation. At the open end 3a of the large flow pipe 3, a cap 1 having a jet flow reducer 1a is arranged. The cap 1 reduces the jet flow generated when the injected water goes over the lower end of a jet flow reducer 1a and to the open end 3a of the large flow pipe, expedites the completion of switching from large flow to small flow and prevents gas carryunder.
Inventors:
WATAKABE HISATO
SHIRAISHI SUNAO
KYOGOKU TAKEJI
SHIRAISHI SUNAO
KYOGOKU TAKEJI
Application Number:
JP5796192A
Publication Date:
July 05, 1999
Filing Date:
March 16, 1992
Export Citation:
Assignee:
MITSUBISHI JUKOGYO KK
KORYO ENJINIARINGU KK
KORYO ENJINIARINGU KK
International Classes:
G21C15/18; G21D1/00; (IPC1-7): G21C15/18; G21D1/00
Domestic Patent References:
JP4328494A | ||||
JP6319597A |
Other References:
白石直他、「三菱簡素化PWR(MS−300/600)の高機能蓄圧タンク」,日本機械学会通常総会講演会講演論文集,第68巻,Pt.B,p.436−438(1991)
Attorney, Agent or Firm:
Mitsuteru Soga (2 outside)