US3914089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distributor plate
Assignee: BP PLC
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Filing: 1973-01-17
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Granted: 1975-10-21
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Expires: 1993-01-17
Abstract
Abstract A distributor plate for a fluidised bed furnace comprises a plurality of air tubes passing through a gas chamber and an oil chamber, both of which are fitted with inlets. The air tubes pass through and beyond the chambers, are perforated where they pass through the chambers, and terminate in heads which supply a combustible mixture to the fluidised bed furnace.
Inventors
- 👤 Denis Henry Desty
- 👤 Howard Cervase Lunn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:42
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/44
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
111 words
A METHOD OF BURNING OF OIL IN A FLUIDISED BED, COMPRISING THE STEPS OF: POSITIONING AT LEAST ONE TUBE BELOW THE FLUIDISED BED FOR COMMUNICATION WITH THE FLUIDISED BED AT ONE END, CONTINOUSLY INTRDUCING OIL IN LIQUID FORM DIRECTLY ONTO THE INSIDE WALL OF THE TUBE AT A POINT INTERMEDIATE ITS LENGTH TO FORM A FILM THEREON, AND CONTINOUSLY INTRODUCING A FLUIDIZING GAS CONTAINING OXYGEN INTO THE TUBE AT A POINT BELOW THE POINT OF INTRODUCTION OF THE OIL AND PASSING THE FLUIDISED GAS THROUGH THE TUBE TO CAUSE THE FILM OF OIL TO CLIMB UP THE INSIDE WALL OF THE TUBE AND COMMUNICATE WITH THE FLUIDISED BED FOR BURNING THEREON.
Claim 2
Independent Claim
111 words
A METHOD OF BURNING OF OIL IN A FLUIDISED BED, COMPRISING THE STEPS OF: POSITIONING AT LEAST ONE TUBE BELOW THE FLUIDISED BED FOR COMMUNICATION WITH THE FLUIDISED BED AT ONE END, CONTINOUSLY INTRDUCING OIL IN LIQUID FORM DIRECTLY ONTO THE INSIDE WALL OF THE TUBE AT A POINT INTERMEDIATE ITS LENGTH TO FORM A FILM THEREON, AND CONTINOUSLY INTRODUCING A FLUIDIZING GAS CONTAINING OXYGEN INTO THE TUBE AT A POINT BELOW THE POINT OF INTRODUCTION OF THE OIL AND PASSING THE FLUIDISED GAS THROUGH THE TUBE TO CAUSE THE FILM OF OIL TO CLIMB UP THE INSIDE WALL OF THE TUBE AND COMMUNICATE WITH THE FLUIDISED BED FOR BURNING THEREON.
Claim 3
Dependent Claim
133 words
A distributor plate for a fluidised bed comprising a fuel gas chamber including a fuel gas inlet, an oil chamber including an oil inlet, and a plurality of air tubes passing through the chambers, all of the air tubes including apertures for communication between the interior of the air tubes and the fuel gas inlet, at least some of the air tubes including additional apertures for communication between the oil inlet and the interior of the air tubes, some of the air tubes being shorter in length than the remaining air tubes, the shorter air tubes being arranged so that their interiors are only in communication with the fuel gas chamber, one end of the air tubes terminating in heads having outlet means adapted to supply a combustible mixture to the fluidised bed.
Claim 4
Dependent Claim
133 words
A distributor plate for a fluidised bed comprising a fuel gas chamber including a fuel gas inlet, an oil chamber including an oil inlet, and a plurality of air tubes passing through the chambers, all of the air tubes including apertures for communication between the interior of the air tubes and the fuel gas inlet, at least some of the air tubes including additional apertures for communication between the oil inlet and the interior of the air tubes, some of the air tubes being shorter in length than the remaining air tubes, the shorter air tubes being arranged so that their interiors are only in communication with the fuel gas chamber, one end of the air tubes terminating in heads having outlet means adapted to supply a combustible mixture to the fluidised bed.
Claim 5
Dependent Claim
39 words
A distributor plate for a fluidised bed according to claim 2 in which about 10 to 30% of the total number of air tubes are the shorter air tubes which are in communication with the fuel gas chamber only.
Claim 6
Dependent Claim
116 words
A distributor plate for a fluidised bed comprising a fuel gas chamber including a fuel gas inlet, an oil chamber divided into a plurality of segments, each of the segments having separate oil inlet means, and a plurality of air tubes passing throUgh the chambers, all of the air tubes including apertures for communication between the interior of the air tubes and the fuel gas inlet, at least some of the air tubes including additional apertures for communication between the oil inlet means of their respective segment and the interior of the air tubes, one end of the air tubes terminating in heads having outlet means adapted to supply a combustible mixture to the fluidised bed.
Claim 7
Dependent Claim
116 words
A distributor plate for a fluidised bed comprising a fuel gas chamber including a fuel gas inlet, an oil chamber divided into a plurality of segments, each of the segments having separate oil inlet means, and a plurality of air tubes passing throUgh the chambers, all of the air tubes including apertures for communication between the interior of the air tubes and the fuel gas inlet, at least some of the air tubes including additional apertures for communication between the oil inlet means of their respective segment and the interior of the air tubes, one end of the air tubes terminating in heads having outlet means adapted to supply a combustible mixture to the fluidised bed.
Claim 8
Dependent Claim
114 words
A distributor plate for a fluidised bed comprising a fuel gas chamber including a fuel gas inlet, an oil chamber including an oil inlet, and a plurality of air tubes passing through the chambers, all of the air tubes including apertures for communication between the interior of the air tubes and the fuel gas inlet, at least some of the air tubes including additional apertures for communication between the oil inlet and the interior of the air tubes, one end of the air tubes terminating in heads having outlet means adapted to supply a combustible mixture to the fluidised bed, the outlet means including passageways substantially perpendicular to the sidewall of the air tubes.
Claim 9
Dependent Claim
114 words
A distributor plate for a fluidised bed comprising a fuel gas chamber including a fuel gas inlet, an oil chamber including an oil inlet, and a plurality of air tubes passing through the chambers, all of the air tubes including apertures for communication between the interior of the air tubes and the fuel gas inlet, at least some of the air tubes including additional apertures for communication between the oil inlet and the interior of the air tubes, one end of the air tubes terminating in heads having outlet means adapted to supply a combustible mixture to the fluidised bed, the outlet means including passageways substantially perpendicular to the sidewall of the air tubes.
Claim 10
Dependent Claim
39 words
A distributor plate for a fluidised bed according to claim 5 in which the total cross-sectional area of the passageways of the outlet means is from about 1 1/2 to 3% about of the total area of the plate.
Claim 11
Dependent Claim
105 words
A distributor plate for a fluidised bed comprising a fuel gas chamber including a fuel gas inlet, an oil chamber including an oil inlet, and a plurality of air tubes passing through the chambers, all of the air tubes including apertures in their sidewalls for communication between the fuel gas chamber and the interior of the air tubes, at least some of the air tubes also including apertures in their sidewalls for communication between the oil chamber and the interior of the air tubes, one end of the air tubes terminating in heads having outlet means for supplying a combustible mixture to the fluidised bed.
Claim 12
Dependent Claim
105 words
A distributor plate for a fluidised bed comprising a fuel gas chamber including a fuel gas inlet, an oil chamber including an oil inlet, and a plurality of air tubes passing through the chambers, all of the air tubes including apertures in their sidewalls for communication between the fuel gas chamber and the interior of the air tubes, at least some of the air tubes also including apertures in their sidewalls for communication between the oil chamber and the interior of the air tubes, one end of the air tubes terminating in heads having outlet means for supplying a combustible mixture to the fluidised bed.
Claim 13
Dependent Claim
28 words
A distributor plate for a fluidised bed according to claim 7 wherein there are between about 10 and about 30 air tubes per square foot of the plate.
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) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |