Furnace for heating a circulating gas stream especially for prod

Electric heating – Heating devices – Combined with container – enclosure – or support for material...

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Details

219380, 219381, F24H 304

Patent

active

040630676

ABSTRACT:
A furnace for heating a circulating gas stream to high temperatures comprising a tubular resistance-type heating element in contact with a stream of gas which is circulated outside and then inside the element, at least one annular and coaxial thermal screens surrounded by a cooling circuit, a leak-tight support casing which communicates with the external region of the heating element, an end-cap screwed into the casing and forming a nozzle from which the hot gases are discharged, and pumping means connected to the space between the open end of the tubular heating element and the end-cap.

REFERENCES:
patent: 2609477 (1952-09-01), Borda et al.
patent: 3109912 (1963-11-01), Cerulli
patent: 3270182 (1966-08-01), Hynes
patent: 3560710 (1971-02-01), Fuellemann

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