Method for purifying gas distribution systems

Details Method for purifying gas distribution systems Method for purifying gas distribution systems

1991-08-07

1993-01-12

Hart, Charles

Gas separation

Means within gas stream for conducting concentrate to collector

55 21, 55 80, 55 97, 55269, 55399, 392489, 392491, B01P 4610

Patent

active

051786516

ABSTRACT:
An apparatus (10) for purifying gas distribution systems has a gas inlet (12) and a gas outlet (14) for connection to gas distribution lines (54). A housing (22) encloses a resistance heater (24) and a particle filter (26) for the gas. The resistance heater (24) is connected to the gas inlet (12) and the particle filter (26) is connected between the resistance heater (24) and the gas outlet (14). The resistance heater includes a sealed tube (26) defining a gas plenum (28). A resistance heater element enclosed in a cylindrical Inconel alloy shell (30) is centrally disposed in the sealed tube (26). A spiral ridge (32) winds around the shell (30) to define a spiral path for gas flowing through the plenum (28). The spiral ridge (32) has a narrower pitch near the gas inlet (12) and a wider pitch moving toward the filter (26) end of the plenum (28).

REFERENCES:
patent: 3777117 (1973-12-01), Othmer
patent: 3934117 (1976-01-01), Schladitz
patent: 4147923 (1979-04-01), Davis et al.
patent: 4197095 (1980-04-01), White et al.
patent: 4501952 (1985-02-01), Lehrke

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