Method and apparatus for destruction of vapors and waste streams
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F23G-007/06
F23D-014/46
F23N-003/00
출원번호
US-0977187
(2004-10-28)
등록번호
US-7273366
(2007-09-25)
발명자
/ 주소
Sujata,Mark L.
출원인 / 주소
Soil Therm Equipment, Inc.
인용정보
피인용 횟수 :
5인용 특허 :
7
초록▼
A burner assembly for the destruction of noxious vapors and other waste streams includes an inner burner element in the form of a sudden expansion burner and an outer burner element that encircles the inner burner element and forms an annular passageway between the two elements. Waste vapors may be
A burner assembly for the destruction of noxious vapors and other waste streams includes an inner burner element in the form of a sudden expansion burner and an outer burner element that encircles the inner burner element and forms an annular passageway between the two elements. Waste vapors may be conducted directly into the flame of the inner burner element (direct inject) or routed through the annular passageway and preheated, for injection at the flame or beyond. The burner elements may include solid or perforated cones mounted on their exits to enhance mixing and injection of the streams. The burner assembly may be configured as in inline duct burner. A wide range of contaminants may be processed because waste streams having primarily nonflammable or combustion inhibiting constituents may be processed.
대표청구항▼
What is claimed is: 1. A burner system producing a flame for destruction of vapors comprising: a generally elongated outer burner element having a sidewall, a front end having an opening, an opposed open back end, and a flange mounted to said front end; a generally tubular elongated inner burner el
What is claimed is: 1. A burner system producing a flame for destruction of vapors comprising: a generally elongated outer burner element having a sidewall, a front end having an opening, an opposed open back end, and a flange mounted to said front end; a generally tubular elongated inner burner element disposed within and spaced inwardly from said outer burner element, said inner burner element being open at opposed front and back ends thereof, including a small diameter front inlet and a larger diameter combustion zone at said back end; a vapor duct assembly connected to said front inlet, said vapor duct assembly including a duct portion, an elbow, and a step plate attached to said duct portion and said flange; an annular passageway formed between the inner burner element and the outer burner element for bypassing cooling air past and around the flame; a spark igniter connected to said vapor duct assembly and passing through said elbow and said front inlet and into said combustion zone; at least one fuel ignition device mounted to said inner burner assembly at said combustion zone; a bypass opening connected to said step plate in fluid connection with said annular passageway; an air blower located adjacent the front end of the outer burner system; an air supply duct connected between said air blower and said bypass opening said annular passageway; a bypass line between said duct portion and said air supply duct; and a control valve mounted on said bypass line to control the flow of vapors between the elbow and the air supply duct, whereby, the volume of the flow of vapors to the combustion zone may be controlled and varied to optimize burner performance. 2. The burner system according to claim 1, further comprising an outer mixing ring disposed in said annular passageway, said ring having a plurality of openings therein. 3. The burner system according to claim 1, further comprising an inner mixing ring disposed within said inner burner element. 4. The burner system according to claim 1, further comprising: a converging inner mixing cone connected to the back end of said inner burner element; and an outer mixing cone connected to the back end of said outer burner element, whereby, vapors may be injected downstream of the combustion zone to mix with gases exiting the combustion zone. 5. The burner system according to claim 4, further comprising a plurality of openings in said inner mixing cone. 6. The burner system according to claim 4, further comprising a plurality of openings in said outer mixing cone. 7. The burner system according to claim 1, further comprising a combustion air opening in said vapor duct assembly. 8. The burner system according to claim 2, further comprising a plurality of injection tubes extending from said openings in said outer mixing ring to direct flow in said annular passageway into hot gases exiting from the inner burner element. 9. A method for the destruction of waste vapors comprising the steps of: providing an elongated chamber having a sidewall, a front end with an opening, and an opposite open back end; providing a sudden expansion burner disposed within said chamber forming an annular passageway between said burner and said chamber, the burner having a relatively small diameter vapor inlet, an inlet vapor duct, a relatively larger diameter, elongated combustion zone, and at least one fuel nozzle extending into said combustion zone; providing an air blower located adjacent the front end of the elongated chamber and an air supply duct to direct air from the air blower to the annular passageway; injecting air into said annular passageway; providing a bypass duct between the inlet vapor duct and the air supply duct with a flow control valve to adjust the volume of vapors flowing to the burner inlet and the annular passageway; injecting a portion of said waste vapors into said combustion zone; mixing a portion of said waste vapors with the air in said annular passageway to form a waste vapor/air mixture; injecting fuel from said fuel nozzle into said combustion zone; igniting the vapors and the fuel in the combustion zone and injecting the vapor/air mixture downstream of said combustion zone, whereby, the vapor/air mixture is ignited by gases exiting the combustion zone, and whereby, the ratio of the vapor to air in the annular passageway may be varied by operation of the control valve. 10. The method according to claim 9, further comprising the steps of: restricting the flow of air and vapors in the annular passageway; and restricting the flow of vapors and combustion products in said combustion zone. 11. A method for the destruction of waste vapors having high carbon dioxide and low oxygen content comprising the steps of: providing an elongated chamber having a sidewall, a front end with an opening, and an opposite open back end and an outer mixing cone at said back end; providing a sudden expansion burner having a front end and a back end disposed within said chamber forming an annular passageway between said burner and said chamber, said burner having a relatively small diameter inlet at said front end, a relatively larger diameter, elongated combustion zone, an inner mixing cone at said back end, an inlet vapor duct having an inlet port for said waste vapors, an opening on the inlet vapor duct in which to mount a sight glass, and at least one fuel nozzle extending into said chamber; providing an air blower located adjacent the front end of the elongated chamber and an air supply duct to direct air from the blower to the annular passageway; providing a bypass duct between the vapor inlet and the air supply duct and a flow control valve mounted on the bypass duct to control the flow of vapors between the vapor inlet and the air supply duct; injecting fuel from said fuel nozzle into said combustion zone; igniting the air and the fuel in the combustion zone to produce a flame and heat; and injecting the waste vapors/air mixture from the annular passageway around and between the inner mixing cone and the outer mixing cone downstream of the combustion zone. 12. The method according to claim 11, further comprising the steps of: closing off the inlet vapor duct; opening the control valve to conduct all of the incoming waste vapors to the bypass duct and to the annular passageway; removing the sight glass from the sight glass port; and conducting combustion air through the sight glass port to the combustion zone. 13. A method for the destruction of a waste vapor stream flowing inside a duct comprising the steps of: providing an elongated chamber of the same shape and outer dimensions as the duct, said chamber having a sidewall, a front end with an opening, an opposite open back end, and having a converging mixing cone and a diverging mixing cone couples to said converging mixing cone at said back end; providing a sudden expansion burner disposed within said chamber, said sudden expansion burner having a relatively small diameter inlet, a relatively larger diameter, elongated combustion zone, and at least one fuel nozzle extending into said combustion zone; forming an annular passageway between said burner and said chamber; providing an air blower located adjacent the front end of the elongated chamber; providing an air supply duct connecting said air blower to said duct; providing an air bypass duct between said air supply duct and said duct; providing a flow control valve in said air bypass duct to enable air to be diverted to said inlet; connecting said chamber to said duct at said back end and said front end; conducting the waste vapor stream into said sudden expansion burner and said annular passageway; injecting air into said sudden expansion burner and said annular passageway; injecting fuel from said fuel nozzle into said combustion zone; igniting the air and the fuel in the combustion zone; injecting a portion of the waste vapor stream into said combustion zone; and injecting some of the waste vapor stream downstream of said combustion zone to mix with gases exiting the combustion zone.
Sujata Mark L. (Northridge CA) Burnette Thomas D. (Westlake Village CA) Long ; Jr. H. Clyde (Simi Valley CA) Wieveg Raymond E. (Ventura CA), Method sudden expansion (SUE) incinerator for destroying hazardous materials & wastes.
Guillaume Paul (Ivry-sur-Seine FRX) Kayser Didier (Paris FRX) Propice Jean (Bois d\Arcy FRX), Process for incinerating waste products at a controlled temperature.
Sujata Mark L. (Agoura Hills CA) Wieveg Raymond E. (Ventura CA) Wills Robert (Torrance CA), Sudden expansion (SUE) incinerator for destroying hazardous materials and wastes and improved method.
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