Induced nuclear reactions: processes – systems – and elements – Reactor structures – Orifice or fluid control at inlet or outlet of coolant channels
Patent
1993-08-23
1995-02-14
Walsh, Donald P.
Induced nuclear reactions: processes, systems, and elements
Reactor structures
Orifice or fluid control at inlet or outlet of coolant channels
376310, G21C 104
Patent
active
053902211
ABSTRACT:
In a boiling water nuclear reactor fuel bundle, a debris catching arrangement is disclosed for incorporation within the flow plenum up stream or below the rod supporting grid of the lower tie plate assembly. The device is preferably placed within the lower tie plate flow plenum between the fuel bundle inlet and the rod supporting grid structure supporting the fuel rods; alternate placement can include any inlet channel upstream of the fuel rods including the fuel support casting. The disclosed debris catching designs include strainer structures defining spatially separated straining or obstructing layers imparting to the fluid in the plenum a circuitous flow path. This circuitous flow path causes the two phase separation of the heavier debris from the lighter transporting water by flow direction change with the debris directed and detoured to a trapping structure. Further, a strainer structure is provided in the plenum that does not constitute a continuum of fine structure across the strained plenum which might become clogged to the extend that overall flow is restricted. The strainer structure is positioned so that eventual trapping of the debris occurs upon cessation of flow so that with removal of the plenum from the reactor, such as removal of the fuel bundle, the debris is likewise removed. Embodiments are disclosed which include swirling deflection, cone deflection, and strainer structure deflection of debris.
REFERENCES:
patent: 1240081 (1917-09-01), Moss
patent: 1504233 (1924-08-01), Graham
patent: 1992472 (1935-02-01), Craig
patent: 3414474 (1968-12-01), Swanson
patent: 3528885 (1970-09-01), Kumpf
patent: 3725199 (1973-04-01), Notari et al.
patent: 3801453 (1974-04-01), Jones
patent: 3840051 (1974-10-01), Akashi
patent: 3844888 (1974-10-01), Calvin
patent: 3878870 (1975-04-01), Atherton
patent: 3879259 (1975-04-01), Persson
patent: 3945883 (1976-03-01), Hind
patent: 3971698 (1976-07-01), Wolff
patent: 4032398 (1977-06-01), Cross et al.
patent: 4036690 (1977-07-01), Betts
patent: 4053358 (1977-10-01), Pennell
patent: 4053359 (1977-10-01), Pennell
patent: 4076586 (1978-02-01), Bideau et al.
patent: 4096032 (1978-06-01), Mayers
patent: 4116764 (1978-09-01), Jones
patent: 4198272 (1980-04-01), Salmon
patent: 4412969 (1983-11-01), Tilbrook
patent: 4420457 (1983-12-01), Le Pargneux
patent: 4427624 (1984-01-01), Marlatt et al.
patent: 4446099 (1984-05-01), Schwind
patent: 4505877 (1985-03-01), Rion
patent: 4610838 (1986-09-01), Gasparro et al.
patent: 4614636 (1986-09-01), Walters
patent: 4615862 (1986-10-01), Huckestein
patent: 4634525 (1987-01-01), Yant
patent: 4652425 (1987-03-01), Ferrari
patent: 4655995 (1987-04-01), Freeman et al.
patent: 4664880 (1987-05-01), Bryan
patent: 4678627 (1987-07-01), Rylatt
patent: 4684495 (1987-08-01), Wilson
patent: 4684496 (1987-08-01), Wilson
patent: 4716012 (1987-12-01), Gasparro
patent: 4772447 (1988-09-01), Manson
patent: 4781884 (1988-11-01), Anthony
patent: 4826653 (1989-05-01), Nylund
patent: 4828791 (1989-05-01), DeMario
patent: 4832905 (1989-05-01), Bryan
patent: 4849161 (1989-07-01), Brown
patent: 4900507 (1990-02-01), Shallenberger
patent: 4919883 (1990-04-01), Bryan
patent: 4980121 (1990-12-01), Roberts
patent: 5009839 (1991-04-01), King
patent: 5024806 (1991-06-01), Cioffi
patent: 5024807 (1991-06-01), Hatfield
patent: 5030412 (1991-07-01), Yates
patent: 5037605 (1991-08-01), Riordan
patent: 5071617 (1991-12-01), Bryan et al.
patent: 5094802 (1992-03-01), Riordan
patent: 5100611 (1992-03-01), Nylund
patent: 5106575 (1992-04-01), Nakamura et al.
patent: 5128096 (1992-07-01), Grattier
patent: 5135710 (1992-08-01), Grattier et al.
patent: 5160697 (1992-11-01), Verdier et al.
patent: 5180545 (1993-01-01), Grattier
patent: 5219517 (1993-06-01), Nylund
patent: 5230861 (1993-07-01), Nylund
patent: 5282231 (1994-01-01), Adams et al.
Dix Gary E.
Matzner Bruce
Chelliah Meena
General Electric Company
McGinness J. E.
Walsh Donald P.
LandOfFree
Debris filters with flow bypass for boiling water reactors does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Debris filters with flow bypass for boiling water reactors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Debris filters with flow bypass for boiling water reactors will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-293595