Heat exchange – With first fluid holder or collector open to second fluid
Patent
1990-07-19
1991-10-08
Davis, Jr., Albert W.
Heat exchange
With first fluid holder or collector open to second fluid
165139, 431 11, 431 12, 431210, 431211, F23D 1144
Patent
active
050545469
ABSTRACT:
Hot effluent gas from a burner or combustor passes over a pair of nested helical coils forming a steam generator 1 and a vapor mixing conduit 2. Liquid fuel is injected at 12 into a stream of superheated steam and vaporizes. The resulting mixture is combustible. In order to meter small amounts of fuel and water at constant pressure for fine adjustment of the fuel/water ratio in the vaporized mixture, a geared pump 15, 16 is provided in each of the water supply line 6 and the fuel supply line 7, feeding a respective injection tube or nozzle 11, 12. The injection tubes terminate respectively in the steam generator 1 and in the water vapor conduit 3, in a hot zone produced by the hot effluent gas. Preferably, magnetic valves 17, 18 are provided, downstream of each of pumps 15, 16, and are controlled as to frequency and opening time by a central control unit 19.
REFERENCES:
patent: 411712 (1889-09-01), Clark
patent: 746409 (1903-12-01), Turner
patent: 1097066 (1914-05-01), Turner
patent: 1719397 (1929-07-01), Edwards
patent: 2599699 (1952-06-01), Dilworth et al.
Davis Jr. Albert W.
Forschungszentrum Julich GmbH
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