Heater and method for deionized water and other liquids

Details Heater and method for deionized water and other liquids Heater and method for deionized water and other liquids

1987-03-30

1991-10-01

Bartis, Anthony

Electric resistance heating devices

Heating devices

Continuous flow type fluid heater

392422, 392489, 392503, F24H 110, H05B 300

Patent

active

050541080

ABSTRACT:
A heater for heating dionized water and other liquids which may be very aggressive solvents, the heater constituting one or more heating units having an external cylindrical housing of PTF Teflon or similar material and closed at each end with headers of similar material which contain ports for ingress and egress of the fluid. A concentric inner tubular member of polysilicon surrounds one or more infra red heating elements which, when energized, radiate intense heat into the chamber within the inner tube. This tube acts to confine and reflect the heat back into the chamber thereby heating the liquid to a high temperature very quickly. Relatively little heat passes through the wall of the inner tube to the surrounding chamber. Liquid is directed into the outer chamber, across the length of the inner tube, through a passage at the opposite end and into the inside chamber. The flow across the other surface of the inner tube is warmed somewhat but insufficiently to damage the outer tube. A purge circuit is included to remove all air bubbles, etc., and a pressure switch responds responds to over and under pressures to deenergize the heaters to protect the system.

REFERENCES:
patent: 1873820 (1932-08-01), Carpenter
patent: 2033443 (1936-03-01), Moses
patent: 3546431 (1969-04-01), Gibbs
patent: 4059520 (1977-11-01), Roller
patent: 4145601 (1979-03-01), Lavrentiev et al.
patent: 4461347 (1984-07-01), Layton et al.
patent: 4534282 (1985-08-01), Marinoza

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