Steam generator

Details Steam generator Steam generator

1978-06-12

1980-06-24

Favors, Edward G.

Liquid heaters and vaporizers

Indirectly heated

Separate fluid

122 34, 122406R, 122407, F22B 106

Patent

active

042089875

ABSTRACT:
The steam generator is provided with a vertical cylindrical enclosure having a bundle of U-shaped tubes therein connected to inlet and outlet collectors through a tube plate at the bottom. An inner casing surrounding the tubes defines an annular chamber which communicates with the tube chamber adjacent the tube plate. A heater is provided about the outlet portion of the tubes within the tube chamber. An ejector pump supplying a secondary fluid is located in the annular chamber adjacent the heater for pumping secondary fluid through the heater. A portion of the heated secondary fluid is recirculated through the pump and the remainder is directed into the tube chamber. Vapor phase separators are provided on top of the inner casing to allow the passage of the vapor phase through an outlet in the enclosure while returning the liquid phase to the annular chamber.

REFERENCES:
patent: 3683866 (1972-08-01), Zmola
patent: 3898961 (1975-08-01), Mayer et al.
patent: 3916841 (1975-11-01), Schroder et al.
patent: 3938473 (1976-02-01), Mayer et al.

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