Methods and apparatus for burning fuel with low NOx formation
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F23C-005/00
F23M-003/02
출원번호
US-0888835
(2001-06-25)
발명자
/ 주소
Jones, Andrew P.
Christenson, Danny L.
출원인 / 주소
John Zink Company, LLC
대리인 / 주소
McAfee & Taft
인용정보
피인용 횟수 :
29인용 특허 :
9
초록▼
Improved methods and apparatus for burning fuel with low NOxformation are provided. A method of the invention for discharging a mixture of fuel gas and air into a furnace wherein the mixture is burned and flue gases having a low NOxcontent are formed includes the following steps. A first portion of
Improved methods and apparatus for burning fuel with low NOxformation are provided. A method of the invention for discharging a mixture of fuel gas and air into a furnace wherein the mixture is burned and flue gases having a low NOxcontent are formed includes the following steps. A first portion of the fuel gas is mixed with a first portion of the air to form a primary fuel gas-air mixture. The primary fuel gas-air mixture is discharged into a primary burning zone in the furnace from at least one discharge location surrounded by a wall which extends into the furnace. A second portion of the fuel and a second portion of the air are mixed to form a secondary fuel gas-air mixture. The secondary fuel gas-air mixture is discharged into a secondary burning zone in the furnace from at least one discharge location adjacent to an exterior side of the wall. The secondary fuel gas-air mixture is discharged at a velocity whereby the secondary fuel gas-air mixture is not ignited and burned until the mixture spreads over an exterior side of the wall, mixes with flue gases in the furnace and flows beyond the wall.
대표청구항▼
Improved methods and apparatus for burning fuel with low NOxformation are provided. A method of the invention for discharging a mixture of fuel gas and air into a furnace wherein the mixture is burned and flue gases having a low NOxcontent are formed includes the following steps. A first portion of
Improved methods and apparatus for burning fuel with low NOxformation are provided. A method of the invention for discharging a mixture of fuel gas and air into a furnace wherein the mixture is burned and flue gases having a low NOxcontent are formed includes the following steps. A first portion of the fuel gas is mixed with a first portion of the air to form a primary fuel gas-air mixture. The primary fuel gas-air mixture is discharged into a primary burning zone in the furnace from at least one discharge location surrounded by a wall which extends into the furnace. A second portion of the fuel and a second portion of the air are mixed to form a secondary fuel gas-air mixture. The secondary fuel gas-air mixture is discharged into a secondary burning zone in the furnace from at least one discharge location adjacent to an exterior side of the wall. The secondary fuel gas-air mixture is discharged at a velocity whereby the secondary fuel gas-air mixture is not ignited and burned until the mixture spreads over an exterior side of the wall, mixes with flue gases in the furnace and flows beyond the wall. pair of axles, each of said axles being attached to and extending downwardly away from one of said flanges such that each of said axles is positioned in one of said channels; and each of a pair of wheels being rotatably attached to one of said axles, each of said wheels abutting a bottom wall of the respective channel. 4. The orrery device as in claim 2, wherein a first pair of couplers couples said first ring to said sphere, each of a second, third, fourth, fifth, sixth, seventh, eighth, and ninth pair of couplers coupling an associated numbered ring with the next adjacent and larger ring, each of the couplers of a pair of couplers being diametrically opposite of each other, each of the odd numbered pairs of couplers being positioned along a first plane bisecting said sphere, each of the even numbered pairs of couplers being positioned along second plane bisecting said sphere, said first plane being orientated perpendicular to said second plane. 5. The orrery device as in claim 4, wherein each of couplers comprises: a first rod having a first end and a second end, said first end being attached to a respective one of said rings or said sphere, said first rod extending toward an axis of said sphere; and a second rod having a first end and a second end, said first end being coupled to a respective one of said rings and attached to said bottom surface of said ring, said second rod extending outwardly away from an axis of said sphere, said second end of said second rod being rotatably coupled to said second end of said first rod. 6. The orrery device as in claim 1 wherein each of couplers comprises: a first rod having a first end and a second end, said first end being attached to a respective one of said rings or said sphere, said first rod extending toward an axis of said sphere; and a second rod having a first end and a second end, said first end being coupled to a respective one of said rings and attached to said bottom surface of said ring, said second rod extending outwardly away from an axis of said sphere, said second end of said second rod being rotatably coupled to said second end of said first rod. 7. An orrery device for depicting a representation of a solar system comprising a sun and nine planets, said device comprising: a sphere being generally hollow and having an outer surface and an inner surface, said sphere being generally transparent, said sphere comprising a plastic material; a plurality of rings, each of said rings having consecutively descending smaller diameters from a largest ring to a smallest ring, said largest ring having a diameter smaller than an inner diameter of said sphere, said largest ring being a first ring and said smallest ring being a ninth ring such that there is a second, third, fourth, fifth, sixth, seventh and eighth ring, each of said rings having a top surface, a bottom surface, a first lateral side and a second lateral side, each of said first and second lateral sides each having a channel therein extending around said rings; a plurality of pairs of couplers for coupling said rings to each other and for coupling said largest ring to said inner surface of said sphere such that said rings are positioned within each other in order of descending lengths of diameters and are concentric, each of said rings being coaxial with respect to said sphere, a first pair of couplers coupling said first ring to said sphere, each of a second, third, fourth, fifth, sixth, seventh, eighth, and ninth pair of couplers coupling an associated numbered ring with the next adjacent and larger ring, each of the couplers of a pair of couplers being diametrically opposite of each other, each of the odd numbered pairs of couplers being positioned along a first plane bisecting said sphere, each of the even numbered pairs of couplers being positioned along second plane bisecting said sphere, said first plane being orientated perpendicular to said second plane, each of said couplers comprising; a
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이 특허에 인용된 특허 (9)
Nakamachi Ichiro (Chiba JPX) Yasuzawa Kunio (Kanagawa JPX) Miyahara Tadato (Tokyo JPX) Nagata Takahiro (Tokyo JPX), Apparatus or method for carrying out combustion in a furnace.
Schwartz Robert E. (Tulsa) Napier Samuel O. (Sapulpa) Jones Andrew P. (Bixby) Noble Roger K. (Tulsa OK), Low NOx formation burner apparatus and methods.
Schwartz Robert E. (Tulsa OK) Waibel Richard T. (Broken Arrow OK) Rodden Paul M. (Sand Springs OK) Napier Samuel O. (Sapulpa OK), Methods and apparatus for burning fuel with low NOx formation.
Mittricker, Franklin F.; O'Dea, Dennis M.; Deckman, Harry W.; Rasmussen, Chad C.; Noble, David R.; Seitzman, Jerry M.; Lieuwen, Timothy C.; Dhanuka, Sulabh K.; Huntington, Richard, Combustor systems and combustion burners for combusting a fuel.
Stoia, Lucas John; DiCintio, Richard Martin; Melton, Patrick Benedict; Romig, Bryan Wesley; Slobodyanskiy, Ilya Aleksandrovich, System and method for a multi-wall turbine combustor.
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