Steam generator for nuclear power plants, especially for pressur

Details Steam generator for nuclear power plants, especially for pressur Steam generator for nuclear power plants, especially for pressur

1978-08-04

1980-04-29

Sprague, Kenneth W.

Liquid heaters and vaporizers

Indirectly heated

Separate fluid

165 76, 165158, F22B 102, F28F 700, F28F 902

Patent

active

042000610

ABSTRACT:
Steam generator for nuclear power plants including a cylindrical housing, a tube bundle for conducting primary medium enclosed by the housing, at least one tube support plate holding the tube bundle, the cylindrical housing including a base member secured to the tube support plate and defining therewith inlet and outlet chambers for the primary medium, the cylindrical housing having a pair of opposing flanges on portions of the cylindrical housing located on opposite sides of the tube support plate, and flange connection means for tightly connecting the portions of the cylindrical housing on opposite sides of the tube support plate, the flange connection means being releasable for assembling and disassembling the tube bundle and including a stud bolt connection, the flanges having opposing sealing surfaces, a lip seal disposed between the sealing surfaces and having radially outwardly protruding lips tightly welded to one another, the lips having a radially inner region secured by respective circular bead welds to the flanges.

REFERENCES:
patent: 3734175 (1973-05-01), Christensen
patent: 3768550 (1973-10-01), Williamson et al.
patent: 3833055 (1974-09-01), Munz et al.
patent: 3896873 (1975-07-01), Wolowodiuk et al.
patent: 3948315 (1976-04-01), Powell

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