Induced nuclear reactions: processes – systems – and elements – With control of reactor – By movement of control element or by release of neutron...
Patent
1991-06-28
1993-12-21
Walsh, Donald P.
Induced nuclear reactions: processes, systems, and elements
With control of reactor
By movement of control element or by release of neutron...
376310, 376313, G21C 706
Patent
active
052727335
ABSTRACT:
A control rod driving hydraulic system of a control rod driving system of a nuclear power plant, in utilization of condensate as a control rod driving water comprises a water pressure control unit arranged for each control rod and a water pressure supply unit for commonly supplying water pressure to all control rods. The water pressure supply unit comprising a pump mechanism operatively connected to a condensate supply source for driving the control rod driving water, a filter mechanism operatively connected to the condensate supply source and the pump mechanism for filtering the condensate as the control rod driving water, a valve unit for regulating quantity of flow of the control rod driving water, and a valve unit for regulating pressure thereof. The filter mechanism including at least one hollow fiber filter unit for purifying the control rod driving water. The hollow fiber filter unit includes a backwash regeneration equipment. The filter mechanism includes a suction filter unit and a driving water filter unit, the suction filter unit being connected to the condensate supply unit, the driving water filter unit being connected to the suction filter unit through the pump mechanism and connected to the flow quantity regulating mechanism and the suction filter unit or the driving water filter unit is substituted with the hollow fiber filter unit.
REFERENCES:
patent: 4775471 (1988-10-01), Nagai et al.
patent: 4880595 (1989-11-01), Matsuda et al.
patent: 4980060 (1990-12-01), Muto et al.
Hayashi Yoshie
Ishizato Shinichi
Tajima Satoko
Kabushiki Kaisha Toshiba
Voss Frederick H.
Walsh Donald P.
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