Process furnace

Details Process furnace Process furnace

1998-02-05

1999-03-09

Walberg, Teresa

Liquid heaters and vaporizers

Plants

Feed water heaters

110254, 266138, F22B 3300

Patent

active

058786996

ABSTRACT:
A twin-cell furnace for process stream preheat and utility steam superheat. The furnace uses a pair of vertical radiant cells with top supported, bottom guided, single row, multiple pass vertical coils fired on opposite sides by floor-mounted burners. An overhead convection section is centered between the radiant cells. Induced and forced draft fans are placed over the convection section to draw combustion gas into the stack and supply air through an air preheater, between the convection section and the stack, and to the floor burners and supplemental convection section burners. Additional convection coils are positioned in the hip section between the radiant cells and the convection section. The furnace design has reduced plot space requirements, increased flexibility in heating multiple services, and allows more even heating of the radiant tubes, and easier radiant tube replacement.

REFERENCES:
patent: 3768980 (1973-10-01), Andersen
patent: 5474280 (1995-12-01), Martin
patent: 5500034 (1996-03-01), Martin
Perry's Chemical Engineers' Handbook, Sixth Edition, pp. 9-60-9-63; (1983).

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