Gas humidifier

Details Gas humidifier Gas humidifier

2007-09-04

2007-09-04

Bushey, Scott (Department: 1724)

Gas and liquid contact apparatus

With external supply or removal of heat

Heat exchange means at or downstream of contact zone

C261S156000, C261S116000

Reexamination Certificate

active

10519409

ABSTRACT:
In a gas humidifier used for humidifying fuel in a molten carbonate fuel cell (MCFC), a small-size gas humidifier is achieved by carrying out a steam-generating process and a gas humidifying process by the use of the steam by using a single unit. In order to achieve this structure, a plurality of longitudinal tube plates are laminated in a thickness direction with predetermined intervals so that a heat-exchanger core (100) of a plate-fin type is prepared. Heating-use high-temperature fluid (A) is allowed to flow alternately through a plurality of spaces that are formed inside the heat-exchanger core (100) and placed side by side in the horizontal direction so as to direct a gas to be humidified (B) to another space from above to below. An injection tube (210), which is used for spraying liquid (C) that serves as a steam source, is inserted virtually horizontally along tube plates on two sides in an upper portion of each space through which the gas to be humidified (B) flows. A header pipe (220), which is used for supplying the liquid (C) to the injection tube (210), is connected to the injection tube (210) at a place apart from the heat-exchanger core (100). One portion of the gas to be humidified (B) that has been introduced into the heat-exchanger core (100) is allowed to flow outside the heat-exchanger core (100) and to contact the header pipe (220) placed outside thereof.

REFERENCES:
patent: 3690839 (1972-09-01), Jones
patent: 5178210 (1993-01-01), Guillet et al.
patent: 6019819 (2000-02-01), Williams
patent: 6383671 (2002-05-01), Andrews et al.
patent: 6899741 (2005-05-01), Nakamura et al.
patent: 2003/0096147 (2003-05-01), Badding et al.
patent: 2002-33111 (2002-01-01), None

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