A multi-port tool which tests for leaks in the seals of a control rod drive that has been removed from its housing. The fixture is attached to the flange of the control rod drive using quick-release clamps. Two ports of the fixture are respectively coupled to the insert and withdraw ports of the control rod drive. A source of demineralized water at a constant pressure is applied to an inlet port of the leak test fixture. The pressurized water is applied to the control rod drive while the index tube is restrained by a restraining rig. A number of valves are selectively opened or closed to provide a flow path for the pressurized water to either the insert port or the withdraw port. The leakage rate at each of a number of leakage points is determined when the pressurized water is applied at the insert port only and again when the pressurized water is applied at the withdraw port only.
申请公布号
US5375458(A)
申请公布日期
1994.12.27
申请号
US19930135206
申请日期
1993.10.12
申请人
GENERAL ELECTRIC COMPANY
发明人
OLIVER, DALE M.;TSUKIDA, ROBERT S.;ORTEGA, FRANK;DELA ROSA, HERBERT B.;ETHRIDGE, DOUGLAS K.;RUSSELL, HARRY I.;SRIDHAR, BETTADAPUR N.