Liquid heaters and vaporizers – Subsidiary
Patent
1981-03-09
1982-09-28
O'Connor, Daniel J.
Liquid heaters and vaporizers
Subsidiary
122 7R, 165DIG2, 237 19, 237 55, F22B 3300
Patent
active
043512763
ABSTRACT:
A heat recovery device for boilers with a blower-type burner. A heat exchanger is located in the stack gas stream and through which is passed a medium to be heated and comprises a pot-shaped vessel (2) which can be inserted into the stack gas duct and is closed on all sides. A stack gas inlet (4) leads into the upper zone of the vessel (2) and at least one stack gas outlet (6, or 30 or 31) leads out of the upper zone of the vessel (2) at a distance from the inlet. A substantially vertical partition wall (7; 21) is located in the vessel (2) and extends downwards from the cover (8) of the vessel (2) and ends at a distance from the bottom (9) of the vessel to interrupt the direct stack gas path from the inlet (4) to the outlet (6). Thus, a siphon-type stack gas path is formed with an inlet chamber (10; 26) and an outlet chamber (11; 27). A draft-interruption damper (15; 32) is fitted in the outer vessel wall in the zone of the outlet chamber (11; 27).
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patent: 4175518 (1979-11-01), Reames
patent: 4178907 (1979-12-01), Sweat
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