Steam generator

Liquid heaters and vaporizers – Stand boiler – Water containing chamber or external tank having circulation...

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Details

122161, 122235R, 126361, F22B 502

Patent

active

044650256

ABSTRACT:
A steam generator has a wound flow pipe which forms an enclosure structure that surrounds an inner chamber, an inner housing which surrounds the jacket and forms therewith a first annular gap for guiding exhaust gas from a burner, an intermediate housing which surrounds the inner housing and forms therebetween a second annular gap through which a combustion air flows to the burner and is heated by the exhaust gas in the first annular gap, and an outer housing which surrounds the intermediate housing and forms a third annular gap through which the combustion air is aspirated from the third gap and is preheated by the combustion air in the second annular gap.

REFERENCES:
patent: 2832320 (1958-04-01), Thome et al.
patent: 3650248 (1972-03-01), Miller
patent: 3707142 (1972-12-01), Kobayashi
patent: 4282833 (1981-08-01), Giesen
patent: 4366778 (1983-01-01), Charrier et al.
patent: 4387669 (1983-06-01), Brown

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