Gas induction bustle for use with a flare or exhaust stack
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F23G-007/08
F23G-007/06
출원번호
US-0114493
(2005-04-26)
등록번호
US-7442035
(2008-10-28)
발명자
/ 주소
Duesel, Jr.,Bernard F.
Fenton,David L.
Rutsch,Michael J.
출원인 / 주소
GEI Development, LLC
대리인 / 주소
Marshall, Gerstein & Borun LLP
인용정보
피인용 횟수 :
20인용 특허 :
47
초록▼
A bustle for use on a flare or an exhaust stack of, for example, a landfill gas treatment system, efficiently transfers gas from the stack to a waste heat recovery system associated with the landfill gas treatment system without substantially affecting the operation of the landfill gas treatment pro
A bustle for use on a flare or an exhaust stack of, for example, a landfill gas treatment system, efficiently transfers gas from the stack to a waste heat recovery system associated with the landfill gas treatment system without substantially affecting the operation of the landfill gas treatment process. The bustle enables the heat recovery system to recover at least a portion of the energy within the exhaust produced by the gas treatment system and to provide the recovered energy either indirectly or directly to a secondary process, such as a wastewater treatment process, to thereby reduce the amount of energy needed to be otherwise input into the secondary process.
대표청구항▼
What is claimed is: 1. A stack bustle for use in a gas exhaust system having an exhaust stack, the stack bustle comprising: a circumferential piping section co-extensive with the exhaust stack, the circumferential piping section including a first wall and a second wall; an orifice disposed within t
What is claimed is: 1. A stack bustle for use in a gas exhaust system having an exhaust stack, the stack bustle comprising: a circumferential piping section co-extensive with the exhaust stack, the circumferential piping section including a first wall and a second wall; an orifice disposed within the first wall of the circumferential piping section or in the exhaust stack, the orifice adapted to be connected to a gas transfer pipe for transferring gas from the circumferential piping section; and a plurality of slots disposed within the second wall of the circumferential piping section or within the exhaust stack, the plurality of slots forming a fluid passageway between the exhaust stack and the circumferential piping section, the plurality of slots being circumferentially disposed around the circumferential piping section or the exhaust stack, wherein an area profile of the plurality of slots differs at different circumferential locations of the circumferential piping section or exhaust stack. 2. The stack bustle of claim 1, wherein each of the plurality of slots includes two spaced apart and opposed edges forming the slot and wherein a distance between the two spaced apart and opposed edges of the slots varies around the circumference of the exhaust stack. 3. The stack bustle of claim 2, wherein the distance between the two spaced apart and opposed edges varies as a function of the circumferential position with respect to a circumferential position of the orifice. 4. The stack bustle of claim 3, wherein the distance between the two spaced apart and opposed edges of the slots is the greatest at a first circumferential position opposite the circumferential position of the orifice. 5. The stack bustle of claim 3, wherein the distance between the two spaced apart and opposed edges of the slots is the least at the circumferential position of the orifice. 6. The stack bustle of claim 2, wherein the distance between the two spaced apart and opposed edges of the slots causes exhaust gas within the exhaust stack to flow into the circumferential piping section at an approximately equal amount at any given circumferential location around the exhaust stack in the presence of a draft at the orifice. 7. The stack bustle of claim 1, wherein the circumferential piping section defines a gas transportation corridor and a cross-sectional area of the gas transportation corridor varies along the gas transportation corridor. 8. The stack bustle of claim 7, wherein the cross-sectional area of the gas transportation corridor varies as a function of the circumferential position with respect to the circumferential position of the orifice. 9. The stack bustle of claim 8, wherein the cross-sectional area of the gas transportation corridor is the greatest at a first circumferential position at the circumferential position of the orifice. 10. The stack bustle of claim 8, wherein the cross-sectional area of the gas transportation corridor is the least at the position opposite the circumferential position of the orifice. 11. The stack bustle of claim 7, wherein the variation in the cross-sectional area causes exhaust gas within the exhaust stack to flow into the circumferential piping section at an approximately equal amount at any given circumferential location around the exhaust stack in the presence of a draft at the orifice. 12. A stack bustle for use in a gas exhaust system having an exhaust stack, the stack bustle comprising: a circumferential piping section disposed within or adjacent to the exhaust stack, the circumferential piping section including a first wall and a second wall which form opposite sides of the circumferential piping section; an orifice disposed within the circumferential piping section, the orifice adapted to be connected to a gas transfer pipe for transferring gas from the circumferential piping section; and a slot disposed within the second wall of the circumferential piping section, the slot forming a fluid passageway between the exhaust stack and the circumferential piping section, said slot circumferentially disposed around the circumferential piping section, wherein the distance between the first wall and the second wall forming the immediately opposing sides of the circumferential piping section varies around the circumference of the exhaust stack. 13. The stack bustle of claim 12, wherein the distance between the first wall and the second wall varies as a function of the circumferential position with respect to the circumferential position of the orifice. 14. The stack bustle of claim 13, wherein the distance between the first wall and the second wall is the greatest at a first circumferential position opposite the circumferential position of the orifice. 15. The stack bustle of claim 13, wherein the distance between the first wall and the second wall is the least at the circumferential position of the orifice. 16. The stack bustle of claim 12, wherein the distance between the first wall and the second wall is designed to cause exhaust gas within the exhaust stack to flow into the circumferential piping section at an approximately equal amount at any given circumferential location around the exhaust stack in the presence of a draft at the orifice. 17. A stack bustle for conducting exhaust gases from a stack, comprising: a gas transportation corridor having a first wall and a second wall; an exhaust gas inlet disposed in the first wall of the gas transportation corridor and adapted to cooperate with the stack to allow gas within the stack to enter the gas transportation corridor at multiple spaced-apart locations in the gas transportation corridor; and an orifice disposed in the gas transportation corridor to enable gas to exit the gas transportation corridor; wherein an area profile of the exhaust gas inlet differs along the gas transportation corridor. 18. The stack bustle of claim 17, wherein the exhaust gas inlet varies in area along the gas transportation corridor in a manner sufficient to maintain a substantially uniform mass flow rate of exhaust gases through the exhaust gas inlet at each of two or more spaced-apart locations of the gas transportation corridor in response to a draft produced at the orifice. 19. The stack bustle of claim 17, wherein the exhaust gas inlet varies in area per unit circumferential length as a function of a distance from the orifice along the transportation corridor. 20. The stack bustle of claim 17, wherein the first and second walls are substantially cylindrical. 21. The stack bustle of claim 20, wherein the first and second walls are co-centric. 22. The stack bustle of claim 17, wherein the first wall is an inner wall and the second wall is an outer wall opposite the first wall. 23. The stack bustle of claim 17, wherein the first wall extends circumferentially around the stack and wherein the second wall extends substantially radially with respect to the first wall. 24. The stack bustle of claim 17, wherein the first and second walls extend substantially along a longitudinal axis of the stack. 25. The stack bustle of claim 24, wherein one of the first and second walls tapers away from the other of the first and second walls circumferentially around at least a portion of the stack. 26. The stack bustle of claim 25, wherein the one of the first and second walls tapers away from the other of the first and second walls circumferentially around at least 180 degrees of the stack. 27. The stack bustle of claim 25, wherein the one of the first and second walls tapers away from the other of the first and second walls circumferentially around approximately 360 degrees of the stack. 28. The stack bustle of claim 17, wherein the exhaust gas inlet defines a continuous opening along the gas transportation corridor. 29. A stack bustle for conducting exhaust gases from a stack, comprising: a gas transportation corridor having first and second opposite walls; an exhaust gas inlet disposed in the gas transportation corridor and adapted to cooperate with the stack to allow gas within the stack to enter the gas transportation corridor at multiple positions within the gas transportation corridor; and an orifice disposed in the gas transportation corridor to enable gas to exit the gas transportation corridor; wherein a cross-sectional area of the gas transportation corridor varies along the gas transportation corridor. 30. The stack bustle of claim 29, wherein the gas transportation corridor is disposed circumferentially around the stack and the exhaust gas inlet is disposed circumferentially around the gas transportation corridor. 31. The stack bustle of claim 30, wherein the cross-sectional area of the gas transportation corridor varies in a manner sufficient to maintain a substantially uniform mass flow rate of exhaust gas through the exhaust gas inlet at each of the spaced-apart locations of the gas transportation corridor in response to a draft produced at the orifice. 32. The stack bustle of claim 29, wherein the exhaust gas inlet is disposed in one of the first and second walls. 33. The stack bustle of claim 29, wherein the exhaust gas inlet defines an opening within the gas transportation corridor that varies in area profile at different spaced-apart locations along the gas transportation corridor. 34. The stack bustle of claim 29, wherein the cross-sectional area of the gas transportation corridor varies as a function of a distance that gas must travel within the gas transportation corridor from the gas exhaust inlet to the orifice. 35. The stack bustle of claim 29, wherein each of the first and second walls is substantially cylindrical. 36. The stack bustle of claim 29, further including a third wall generally disposed between the first wall and the second wall, wherein the exhaust gas inlet is disposed in the third wall. 37. The stack bustle of claim 29, wherein one of the first and second walls tapers away from the other of the other of the first and second walls circumferentially around at least a portion of the stack. 38. The stack bustle of claim 29, wherein one of the first and second walls is co-extensive with a stack wall and wherein the other of the first and second walls tapers away from the one of the first and second walls circumferentially around at least 180 degrees of the stack.
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이 특허에 인용된 특허 (47)
Zink ; John S. ; Reed ; Robert D. ; Schwartz ; Robert E., Airrester.
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