Patent ID: 8608121
Filing Date: 2013-12-17
Classification: F16L,G21C,Y02E

Abstract:
1. A reactor metering pipe fixing device for fixedly holding a vertical metering pipe in a vertical direction on a cylindrical outer surface of a jet pump diffuser installed in a reactor pressure vessel of a boiling-water reactor, the reactor metering pipe fixing device comprising: an assembly for holding the metering pipe on the cylindrical outer surface of the jet pump diffuser, and a C-shaped holding member holding the assembly on the cylindrical outer surface from an outside, the assembly including: wherein the plurality of inner holding members, the wedges, the first means, and the second means are at an upper end and a lower end of the outer holding member, respectively, to fix two vertically spaced parts of the metering pipe to the cylindrical outer surface, wherein each of the plurality of wedges is disposed between one of the plurality of inner holding members and the cylindrical outer surface of the jet pump diffuser, and wherein a first wedge of the plurality of wedges does not contact a second wedge of the plurality of wedges.