IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0118996
(2005-04-29)
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등록번호 |
US-7717046
(2010-06-10)
|
발명자
/ 주소 |
- Sprouse, Kenneth M
- Matthews, David R
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출원인 / 주소 |
- Pratt & Whitney Rocketdyne, Inc.
|
대리인 / 주소 |
Carlson, Gaskey & Olds PC
|
인용정보 |
피인용 횟수 :
18 인용 특허 :
14 |
초록
▼
A system for providing highly pressurized raw fuel to a pressure reactor. The system includes an inlet for receiving the raw fuel and a roller system communicating with the inlet. The roller system includes a plurality of independent rollers arranged in two converging planes. The rollers of the roll
A system for providing highly pressurized raw fuel to a pressure reactor. The system includes an inlet for receiving the raw fuel and a roller system communicating with the inlet. The roller system includes a plurality of independent rollers arranged in two converging planes. The rollers of the roller system successively compress the raw fuel as the raw fuel passes through the roller system between the rollers, such that the fuel is highly pressurized when it reaches an output end of the roller system. An outlet is located adjacent the output end of the roller system to dispense the pressurized raw fuel to the pressure reactor.
대표청구항
▼
What is claimed is: 1. A system for pressurizing a raw fuel used in a pressure reactor, comprising: a vessel operable to receive the raw fuel; an extruder pump fluidly coupled to the vessel, the extruder pump including a housing having an inlet for receiving the raw fuel from the vessel, an outlet
What is claimed is: 1. A system for pressurizing a raw fuel used in a pressure reactor, comprising: a vessel operable to receive the raw fuel; an extruder pump fluidly coupled to the vessel, the extruder pump including a housing having an inlet for receiving the raw fuel from the vessel, an outlet for discharging pressurized raw fuel, and a plurality of motive rollers mounted for rotation within the housing for successively pressurizing the raw fuel from the vessel; a plurality of seals between the plurality of motive rollers and the housing, the plurality of seals being configured to limit leakage from the housing; and a discharge tank fluidly coupled to the extruder pump for receiving pressurized raw fuel from the extruder pump. 2. The system of claim 1, wherein the plurality of motive rollers are mounted in the extruder pump to form an angle to a vertical plane. 3. The system of claim 2, wherein the angle of the plurality of motive rollers ranges between zero and fifteen degrees. 4. The system of claim 1 wherein the plurality of motive rollers includes a first row of motive rollers located on one side of the extruder pump and second row of motive rollers on another side of the extruder pump spaced apart from the first row of motive rollers. 5. The system of claim 1, wherein the discharge tank further comprises: at least one mechanism capable of restoring a void fraction of the raw fuel to a void fraction of the raw fuel prior to entry into the inlet; and at least one source of pressurized gas operable to create a slurry from the raw fuel at the high pressure. 6. The system of claim 1, wherein the raw fuel is selected from the group comprising: coal, petcoke, and combinations thereof. 7. The system of claim 1, wherein the housing includes curved surfaces that conform to the plurality of motive rollers. 8. The system of claim 1, wherein the housing having includes a first curved surface portion of a first radius of curvature and a second curved surface portion of a second radius of curvature that is smaller than the first radius of curvature. 9. The system of claim 1, wherein the extruder pump further comprises a plurality of auxiliary rollers adjacent the plurality of motive rollers, each of the plurality of auxiliary rollers being smaller in size than each of the plurality of motive rollers. 10. The system of claim 9, wherein the extruder pump includes less of the plurality of auxiliary rollers than of the plurality of motive rollers. 11. The system of claim 9, wherein each of the plurality of auxiliary rollers is in contact with two of the plurality of motive rollers. 12. The system of claim 1, wherein the plurality of seals includes labyrinth seals located at ends of the plurality of motive rollers. 13. The system of claim 1, wherein the plurality of seals includes sealing rollers, and each sealing roller is directly rotatably coupled to two of the plurality of motive rollers, with no gap between the respective two motive rollers and the corresponding sealing roller. 14. A system for pressurizing a raw fuel used in a pressure reactor, comprising: a vessel operable to receive the raw fuel; an extruder pump fluidly coupled to the vessel, the extruder pump including a housing having an inlet for receiving the raw fuel from the vessel, an outlet for discharging pressurized raw fuel, and a plurality of motive rollers mounted for rotation within the housing, the plurality of motive rollers including a first row of motive rollers located on one side of the extruder pump and second row of motive rollers on another side of the extruder pump spaced apart from the first row of motive rollers for successively pressurizing the raw fuel from the vessel, and the plurality of motive rollers turn at different tip speeds such that the motive rollers near the inlet have tip speeds higher than those near the outlet; and a discharge tank fluidly coupled to the extruder pump for receiving pressurized raw fuel from the extruder pump. 15. A system for providing pressurized raw fuel to a pressure reactor, comprising: a vessel having an inlet operable to receive the raw fuel and an outlet for discharging pressurized raw fuel; a roller system within the vessel, the roller system operable to pressurize the raw fuel, the roller system including: a first motive roller adjacent to the inlet, the first motive roller operable to pressurize the raw fuel to a first pressure fuel; a second motive roller adjacent to the inlet and displaced a first distance across from the first motive roller, the second motive roller receiving the raw fuel of the first pressure level and further pressurizing the raw fuel to a second pressure level before directing the raw fuel toward the reactor; and a plurality of seals, with at least one of the plurality of seals arranged between the first motive roller and the vessel and another of the plurality of seals arranged between the second motive roller and the vessel to limit leakage from the vessel. 16. The system of claim 15, further comprising: a mesh screen disposed in the inlet, the mesh screen operable to enable raw fuel having a pre-determined particulate size to enter the roller system. 17. The system of claim 15, wherein the outlet further comprises: a chamber coupled to the outlet for receipt of the raw fuel, the chamber operable to retain the raw fuel at the high pressure. 18. The system of claim 17, wherein the chamber further comprises: at least one mechanism capable of restoring a void fraction of the raw fuel to a void fraction of the raw fuel prior to entry into the inlet; and at least one source of pressurized gas operable to create a slurry from the raw fuel at the high pressure. 19. The system of claim 15, wherein the roller system further comprises an auxiliary roller in contact with each of the first motive roller and the second motive roller, the auxiliary roller being smaller than each of the first motive roller and the second motive roller. 20. The system of claim 15, wherein the raw fuel is selected from the group comprising: coal, petcoke, and combinations thereof. 21. The system of claim 8, wherein the plurality of seals includes labyrinth seals located at ends of the plurality of motive rollers. 22. The system of claim 15, wherein the plurality of seals includes sealing rollers, and each sealing roller is directly rotatably coupled to two of the plurality of motive rollers, with no gap between the respective two motive rollers and the corresponding sealing roller. 23. A system for providing pressurized raw fuel to a pressure reactor, comprising: a vessel having an inlet operable to receive the raw fuel and an outlet for discharging pressurized raw fuel; a roller system within the vessel, the roller system operable to pressurize the raw fuel, the roller system including: a first motive roller adjacent to the inlet, the first motive roller operable to pressurize the raw fuel to a first pressure fuel; a second motive roller adjacent to the inlet and displaced a first distance across from the first motive roller, the second motive roller receiving the raw fuel of the first pressure level and further pressurizing the raw fuel to a second pressure level before directing the raw fuel toward the reactor, the first motive roller and the second motive roller turn at different tip speeds such that the first motive roller near the inlet has tip speeds higher than the second motive roller near the outlet. 24. A system for pressurizing a raw fuel, comprising: a vessel operable to receive the raw fuel; an extruder pump fluidly coupled to the vessel, the extruder pump operable to pressurize the raw fuel, the extruder pump further including: a housing symmetric to a vertical plane comprising an inlet for receipt of the raw fuel from the vessel and an outlet fluidly coupled to the discharge tank to provide the discharge tank with the pressurized raw fuel; a plurality of motive rollers disposed within the housing, the plurality of motive rollers arranged in the housing to form an angle to the vertical plane; a plurality of seals between the plurality of motive rollers and the housing, the plurality of seals being configured to limit leakage from the housing; a discharge tank fluidly coupled to the extruder pump and operable to receive the pressurized fluid from the extruder pump; and a gasifier coupled to the discharge tank, the gasifier operable to combust the pressurized raw fuel. 25. The system of claim 24, wherein the angle of the plurality of motive rollers ranges between zero and fifteen degrees. 26. The system of claim 24, wherein the plurality of motive rollers includes a first row of motive rollers located on one side of the extruder pump and second row of motive rollers on another side of the extruder pump spaced apart from the first row of motive rollers. 27. The system of claim 24 wherein the plurality of motive rollers turn at different tip speeds such that the motive rollers near the pump's inlet have tip speeds higher than those near the exit. 28. The system of claim 24, wherein the discharge tank further comprises: at least one mechanism capable of restoring a void fraction of the raw fuel to a void fraction of the raw fuel prior to entry into the inlet; and at least one source of pressurized gas operable to create a slurry from the raw fuel at the high pressure. 29. The system of claim 28 wherein the at least one mechanism capable of restoring a void fraction of the raw fuel to a void fraction of the raw fuel includes a ball valve 98 and a gas make-up line between the discharge tank and the least one source of pressurized gas.
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