High-efficiency furnace

Details High-efficiency furnace High-efficiency furnace

1994-02-25

1995-03-07

Favors, Edward G.

Liquid heaters and vaporizers

Water tube

Having specific tube patterns

122510, F22B 1500

Patent

active

053948378

ABSTRACT:
A furnace comprising a lower radiant section and an upper convection section, the lower section having associated fuel burners; generally vertically extending first tubular structure suspended in the first section; second tubular structure extending generally horizontally relative to the first section and suspending the first tubular structure; and grid structure extending generally horizontally and supporting the second tubular structure; whereby hot combustion gases produced by the burners flow upwardly in the first section and past the first and second tubular structure and the grid structure to the upper convection section; and the second tubular structures and/or the grid structure are cooled by circulation of fluids therein.

REFERENCES:
patent: 3172739 (1965-03-01), Koniewiez
patent: 3182638 (1965-05-01), Lee et al.
patent: 3353920 (1967-11-01), Kitzen
patent: 3385271 (1968-05-01), Fleischer
patent: 3566845 (1971-03-01), Barnes
patent: 3885530 (1975-05-01), Kivlen et al.
patent: 4002149 (1977-01-01), Yamamoto et al.
patent: 4413591 (1983-11-01), McCorcle
patent: 5005530 (1991-04-01), Tsai

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