Heat exchanger having a gas flue

Details Heat exchanger having a gas flue Heat exchanger having a gas flue

1984-08-23

1985-10-15

Yuen, Henry C.

Liquid heaters and vaporizers

Heat transmitter

122 6A, 122235A, 122235K, F22B 3700

Patent

active

045467315

ABSTRACT:
The heat exchanger has a cover which is formed by parallel groups of terminal tubes which connect with at least 80% of the wall tubes of the flue. In one embodiment, the terminal tubes of adjacent groups meet in a common zone and extend upwardly into a common header. In another embodiment, the terminal tubes of alternating groups are disposed in different layers with one layer covering over open triangular areas defined between adjacent tube groups of the other layer.

REFERENCES:
patent: 3299858 (1967-01-01), Franzmann
patent: 3809016 (1974-05-01), Kral et al.
patent: 3814062 (1974-06-01), Vollhardt
patent: 4355602 (1982-10-01), Cooke
patent: 4394849 (1983-07-01), Pratt et al.
patent: 4395268 (1983-07-01), Zabelka
patent: 4418652 (1983-12-01), Rees

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