Quartz tube heat generator with catalytic coating

Details Quartz tube heat generator with catalytic coating Quartz tube heat generator with catalytic coating

1990-05-15

1993-03-16

Reynolds, Bruce A.

Electric resistance heating devices

Heating devices

Radiant heater

219553, 422177, 338262, F26B 330, F24C 700

Patent

active

051951657

ABSTRACT:
A heat generator comprising a quartz tube containing an electric resistor and a catalyst coating layer comprising at least active alumina, silica and a platinum group metal, formed on the surface of the quartz tube can heat a material to be heated and the catalyst coating layer itself because of the catalyst coating layer being provided on the surface of the quartz tube. The catalyst coating layer surrounds the quartz tube and thus efficiently absorbs heat from the electric resistor by radiation and heat conductance, whereby the catalyst coating layer can be heated to the activation temperature within a short time. Furthermore, the heat generator also heats air around the heat generator to circulate the air as a convection air stream around the heat generator. When the convection air stream contacts the catalyst in the catalyst coating layer heated to higher than the activation temperature by heating of the heat generator, smelly components or noxious components in the air stream are oxidized and purified by the catalytic action before leaving the heat generator.

REFERENCES:
patent: 3179789 (1965-04-01), Gialanella
patent: 3362783 (1968-01-01), Leak
patent: 3779710 (1973-12-01), Burstein et al.
patent: 3930796 (1976-01-01), Haensel
patent: 4023928 (1977-05-01), Haensel
patent: 4188309 (1980-02-01), Volker et al.
patent: 4426570 (1984-01-01), Hikino et al.
patent: 4626659 (1986-12-01), Charmes et al.

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