Intermediate superheater

Details Intermediate superheater Intermediate superheater

1983-04-20

1985-07-16

Favors, Edward G.

Liquid heaters and vaporizers

Steam treatment

Superheater

122 32, 122 34, F22G 100

Patent

active

045289468

ABSTRACT:
A superheater has a pressure vessel containing upper and lower steam chambers for primary steam between which extends a nest of tubes arranged around a central volume. The volume between the nest of tubes and the pressure vessel is divided into lower and upper volumes by a wall which forces the secondary fluid to be superheated first to pass the nest of tubes radially inwardly into the central volume and thereafter radially outwardly. Primary steam is supplied to the upper steam chamber tangentially and flows under condensation through the tubes to the lower steam chamber where the condensate is discharged. Between the steam chambers a centrally located return conduit can be provided. The rotation of the steam within the upper steam chamber induces a pressure distribution with decreasing pressure from the periphery towards the center which pressure distribution is used for the recirculation of excess primary steam through the return conduit.

REFERENCES:
patent: 3683866 (1972-08-01), Zmola
patent: 3848572 (1974-11-01), Giardina
patent: 4156403 (1979-05-01), Bessouat et al.
patent: 4248181 (1981-02-01), Bessouat et al.
patent: 4261298 (1981-04-01), McDonald et al.
patent: 4352341 (1982-10-01), Styslinger

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