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Title:
WATER PRESSURE CONTROL UNIT
Document Type and Number:
Japanese Patent JP2016095217
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a water pressure control unit capable of facilitating alignment of a nitrogen vessel and an instrumentation block and shortening assembly work time for the nitrogen vessel and the instrumentation block.SOLUTION: A water pressure control unit 1 comprises: various pipes; an air-actuated scram valve 2 disposed halfway along the pipes; a scram pilot valve 3 disposed halfway along the pipe above the scram valve 2; a plurality of gate valves 4 attached halfway along the pipes; an accumulator 5 connected halfway along the pipe below the scram valve 2 and having a movable piston provided on an inner surface thereof; a nitrogen vessel 6 attached to one end of the accumulator 5; an instrumentation block 7 disposed between the accumulator 5 and the nitrogen vessel 6; and a frame 8 for supporting the scram valve 2, the accumulator 5, the nitrogen vessel 6 and the instrumentation block 7. The nitrogen vessel 6 is connected to the instrumentation block 7 by a flexible tube 11.SELECTED DRAWING: Figure 2

Inventors:
OOKA KENTO
TAKAHASHI TAKESHI
Application Number:
JP2014231205A
Publication Date:
May 26, 2016
Filing Date:
November 14, 2014
Export Citation:
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Assignee:
HITACHI-GE NUCLEAR ENERGY LTD
International Classes:
G21C7/16
Domestic Patent References:
JP2002181980A2002-06-26
JPS62285095A1987-12-10
JPS60102696A1985-06-06
JPH0634100A1994-02-08
JP2002181980A2002-06-26
JPS62285095A1987-12-10
JPS60102696A1985-06-06
JPH0634100A1994-02-08
Foreign References:
US20070177706A12007-08-02
US20070177706A12007-08-02
Attorney, Agent or Firm:
ポレール特許業務法人