Heat exchange – With valve or movable deflector for heat exchange fluid flow – With by-pass of heat exchanger or heat exchanger section
Patent
1978-02-14
1980-12-02
Nelson, Peter A.
Heat exchange
With valve or movable deflector for heat exchange fluid flow
With by-pass of heat exchanger or heat exchanger section
176 65, 165158, G21C 1302
Patent
active
042369703
ABSTRACT:
A coolant pump and a steam generator are formed together into a structural unit, the steam generator being a straight-tube steam generator having a central ascending pipe, a tube bundle having a central passageway through which the ascending pipe extends, an upper primary-side inlet, chamber communicating with the tube bundle at an upper end thereof, a lower primary chamber communicating with the tube bundle at a lower end thereof, the central ascending pipe communicating with the inlet chamber for feeding primary medium thereto from which the primary medium flows back through the tube bundle to the lower primary chamber, the ascending pipe having an axial elongation, the coolant pump having an impeller and a guidance device surrounding the impeller, the ascending pipe-elongation having a construction corresponding to that of the guidance device, partition means for dividing the lower primary chamber into a suction space and an outlet chamber space, the pump having a suction side connected through the suction space of the lower primary chamber to a hot line string of a double line connected to the steam generator, the outlet chamber space of the lower primary chamber being connected to a cold line string of the double line.
REFERENCES:
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patent: 3802498 (1974-04-01), Romanos
patent: 3850796 (1974-11-01), Thome
patent: 3859008 (1975-01-01), Wieser
patent: 3910714 (1975-10-01), Allen et al.
patent: 3916990 (1975-11-01), Ruhe et al.
patent: 4038134 (1977-07-01), Dorner et al.
patent: 4039377 (1977-08-01), Andrieu et al.
patent: 4084546 (1978-04-01), Schneeberger et al.
patent: 4094737 (1978-06-01), Greischel et al.
Harand Elmar
Michel Eberhard
Kraftwerk Union Aktiengesellschaft
Lerner Herbert L.
Nelson Peter A.
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