Stoves and furnaces – Hot-air furnaces – Tubular air heater
Patent
1994-08-17
1995-12-26
Yeung, James C.
Stoves and furnaces
Hot-air furnaces
Tubular air heater
126 99C, 126116R, 165139, F24H 308
Patent
active
054778468
ABSTRACT:
The invention provides in one broad aspect an improved process fluid preheater system for raising the temperature of a process fluid with a hot furnace gas, having a combustion furnace in communication with a shell and tube heat exchanger, wherein the furnace operably produce the hot furnace gas and comprises air inlet means, fossil fuel combustion means and hot furnace gas exit means; and the heat exchanger comprises an exchanger shell, a first end radial tube sheet and a second end radial tube sheet, which define a shell space; a plurality of longitudinal tubes retained by the first and second end tube sheets within the shell and comprising heat exchange means; hot furnace gas inlet means; cooled furnace gas outlet means; process gas inlet means; and heated process fluid outlet means; the improvement comprising the plurality of tubes further comprises the hot furnace gas inlet means and the cooled furnace gas outlet means; the hot furnace gas exit means in communication with the plurality of tubes furnace gas inlet means to operably provide the tubes with the hot furnace gas. The process fluid inlet means comprises a first process fluid inlet adjacent the first tube sheet and in communication with the shell space, and a second process fluid inlet adjacent the second tube sheet and in communication with the shell space; and the heated process fluid outlet means comprises a fluid outlet essentially midway between the first and the second tube sheets and in communication with the shell space.
REFERENCES:
patent: 1814011 (1931-07-01), Snow
patent: 2817498 (1957-12-01), Miller
patent: 2869830 (1959-01-01), Cox
patent: 2917285 (1959-12-01), Schack
patent: 3859735 (1975-01-01), Katterjohn, Jr.
LandOfFree
Furnace-heat exchanger preheating system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Furnace-heat exchanger preheating system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Furnace-heat exchanger preheating system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1362601