Patent US3863606A successfully refreshed from Google Patents.
US3863606A
Expired / Lapsed
US
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Vapor generating system utilizing fluidized beds
Assignee: Environmental Protection Agency
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Filing: 1973-07-25
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Granted: 1975-02-04
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Expires: 1993-07-25
Abstract
Abstract A vapor generating system in which a plurality of vertically stacked beds of particulate material containing a solid fuel are disposed in a housing. Pressurized air is passed through each of the fuel beds to fluidize the beds and thus promote the combustion of the fuel and maintain the beds at predetermined temperatures while a heat exchange medium is circulated in a heat exchange relation to the beds. The air is pressurized by an air compressor driven by a gas turbine which, in turn, is driven by the flue gases from the fluidized beds.
Inventors
- 👤 Richard W Bryers
- 👤 Jack D Shenker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:00
CPC Classifications
F; F28; F28D; F28D13/00; F22; F22B; F22B31/00; F22B31/0007; F22B31/0015; F22B31/003; F22B31/0038; F23; F23C; F23C10/00; F23C10/005; F23C10/16
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
131 words
A vapor generating system comprising a housing, means defining a plurality of vertically aligned beds of particulate fuel material in said housing, a source of pressurized air, means to pass said pressurized air through each of said beds to promote the combustion of said fuel and maintain said beds at predetermined temperatures, a plurality of vertically disposed tubes connected together to form the walls of said housing for passing a heat exchange medium in a heat exchange relation to said beds, and piping means for directing said medium into the lower ends of a portion of said tubes for passage upwardly to the upper ends thereof and from the upper ends of said tubes downwardly externally of said tubes and back into another portion of said tubes for passage upwardly therethrough.
Claim 2
Dependent Claim
131 words
A vapor generating system comprising a housing, means defining a plurality of vertically aligned beds of particulate fuel material in said housing, a source of pressurized air, means to pass said pressurized air through each of said beds to promote the combustion of said fuel and maintain said beds at predetermined temperatures, a plurality of vertically disposed tubes connected together to form the walls of said housing for passing a heat exchange medium in a heat exchange relation to said beds, and piping means for directing said medium into the lower ends of a portion of said tubes for passage upwardly to the upper ends thereof and from the upper ends of said tubes downwardly externally of said tubes and back into another portion of said tubes for passage upwardly therethrough.
Claim 3
Dependent Claim
115 words
A vapor generating system comprising a housing, means defining a plurality of vertically aligned beds of particulate fuel material in said housing, a source of pressurized air, means to pass said pressurized air through each of said beds to promote the combustion of said fuel and maintain said beds at predetermined temperatures, a plurality of vertically disposed tubes connected together to form the walls of said housing for passing a heat exchange medium in a heat exchange relation to said beds, and piping means for directing said medium through at least one of said beds and then into the lower ends of a portion of said tubes for passage upwardly to the upper ends thereof.
Claim 4
Dependent Claim
115 words
A vapor generating system comprising a housing, means defining a plurality of vertically aligned beds of particulate fuel material in said housing, a source of pressurized air, means to pass said pressurized air through each of said beds to promote the combustion of said fuel and maintain said beds at predetermined temperatures, a plurality of vertically disposed tubes connected together to form the walls of said housing for passing a heat exchange medium in a heat exchange relation to said beds, and piping means for directing said medium through at least one of said beds and then into the lower ends of a portion of said tubes for passage upwardly to the upper ends thereof.
Claim 5
Dependent Claim
115 words
A vapor generating system comprising a housing, means defining a plurality of vertically aligned beds of particulate fuel material in said housing, a source of pressurized air, means to pass said pressurized air through each of said beds to promote the combustion of said fuel and maintain said beds at predetermined temperatures, a plurality of vertically disposed tubes connected together to form the walls of said housing for passing a heat exchange medium in a heat exchange relation to said beds, and piping means for directing said medium into the lower ends of a portion of said tubes for passage upwardly to the upper ends thereof and then through at least one of said beds.
Claim 6
Dependent Claim
115 words
A vapor generating system comprising a housing, means defining a plurality of vertically aligned beds of particulate fuel material in said housing, a source of pressurized air, means to pass said pressurized air through each of said beds to promote the combustion of said fuel and maintain said beds at predetermined temperatures, a plurality of vertically disposed tubes connected together to form the walls of said housing for passing a heat exchange medium in a heat exchange relation to said beds, and piping means for directing said medium into the lower ends of a portion of said tubes for passage upwardly to the upper ends thereof and then through at least one of said beds.
Claim 7
Dependent Claim
48 words
The system of claim 3 wherein said medium is water and wherein the temperatures of said beds are such that said water is vaporized as a result of passing through said tubes and the temperature thereof is raised to superheat as a result of passing through said beds.
Claim 8
Dependent Claim
46 words
The system of claim 1 wherein said source of pressurized air is an air compressor and further comprising a gas turbine operatively connected to said compressor, and means for directing the gases from said beds to said turbine for driving said turbine and therefore said compressor.
Claim 9
Dependent Claim
46 words
The system of claim 2 wherein said source of pressurized air is an air compressor and further comprising a gas turbine operatively connected to said compressor, and means for directing the gases from said beds to said turbine for driving said turbine and therefore said compressor.
Claim 10
Dependent Claim
46 words
The system of claim 3 wherein said source of pressurized air Is an air compressor and further comprising a gas turbine operatively connected to said compressor, and means for directing the gases from said beds to said turbine for driving said turbine and therefore said compressor.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |