Fossil fuel-fired once-through flow stream generator

Details Fossil fuel-fired once-through flow stream generator Fossil fuel-fired once-through flow stream generator

1994-06-20

1998-04-07

Bennett, Henry A.

Liquid heaters and vaporizers

Industrial

Port

122451S, F22B 3700

Patent

active

057352364

ABSTRACT:
In once-through flow steam generators including a burner for fossil fuels and having a vertical gas flue with essentially vertically disposed tubes, inlet ends of the tubes are connected to an inlet header and outlet ends of the tubes are connected to an outlet header. According to the invention, a pressure-equalization tube branches off from each tube at the same height. The tube is connected to a pressure-equalization vessel. The height H is chosen in such a way that in the case of an individual tube being more strongly heated between the inlet header and the branching-off point of the pressure-equalization tube, the mass flow through the individual tube increases as compared to a mean value of the heating of all of the tubes.

REFERENCES:
patent: 3280799 (1966-10-01), Schroeder
patent: 3308792 (1967-03-01), Lawton
patent: 4869210 (1989-09-01), Wittchow
patent: 5159897 (1992-11-01), Franke et al.
patent: 5189988 (1993-03-01), Budin et al.
VGB Kraftwerkstechnik 64, Issue 4, Apr. 1984 (Juzi) pp. 292-302.
Book: "Dampferzeugung (Steam Generator)" Dolezzzal pp. 269, 292 and 293.

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