Pump for use in nuclear reactor plants and anchoring means there

Details Pump for use in nuclear reactor plants and anchoring means there Pump for use in nuclear reactor plants and anchoring means there

1974-01-30

1979-02-06

Husar, C. J.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Casing with axial, conical flow runner

176 38, 176 65, 415136, 417424, 417360, F01D 2524, G21C 900

Patent

active

041382013

ABSTRACT:
The housing of the primary recirculating pump in a nuclear reactor plant has a reinforced annular portion at the inlet and/or outlet and anchoring means provided on the annular portion and on the foundation to allow for limited movement of the housing relative to the foundation in response to development of major stresses which are likely to arise in the event of breakage of one or more pipes or as a result of earth tremors. The inertia of the annular portion or portions in response to temperature changes can be reduced by forming their end faces with one or more circumferentially complete grooves which surround the adjacent ends of the respective pipes. The anchoring means may comprise cylindrical pins which extend radially from the respective annular portion and into complementary sockets provided on clamps, claws or analogous anchoring parts in or on the foundation. The anchoring means may also comprise L-shaped clamps which are secured to the foundation and extend into a circumferential groove of the respective annular portion or overlie a ring-shaped projection of such annular portion.

REFERENCES:
patent: 3437047 (1969-04-01), Walsh et al.
patent: 3476488 (1969-11-01), Chambert
patent: 3859008 (1975-01-01), Wieser
patent: 3947154 (1976-03-01), Klepp et al.
patent: 3977808 (1976-08-01), Schiele et al.

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