System and method for controlling emissions in a combustion system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-053/34
B01D-053/74
출원번호
US-0026166
(2011-02-11)
등록번호
US-8309045
(2012-11-13)
발명자
/ 주소
Zhang, Tian Xuan
Chapin, David Michael
Taylor, Robert Warren
Moyeda, David Kelly
Maly, Peter Martin
출원인 / 주소
General Electric Company
대리인 / 주소
Fletcher Yoder P.C.
인용정보
피인용 횟수 :
0인용 특허 :
90
초록▼
A system includes an emissions control system. The emissions control system includes a chemical injection conduit. The emissions control system also includes a chemical injector coupled to the chemical injection conduit, wherein the chemical injector is configured to output an emissions control chem
A system includes an emissions control system. The emissions control system includes a chemical injection conduit. The emissions control system also includes a chemical injector coupled to the chemical injection conduit, wherein the chemical injector is configured to output an emissions control chemical into the chemical injection conduit. The emissions control system further includes a wave generator coupled to the chemical injection conduit, wherein the wave generator is configured to output multiple waves that propagate through the chemical injection conduit into a flow path of combustion products to drive improved mixing of the emissions control chemical with the combustion products.
대표청구항▼
1. A system, comprising: an emissions control system, comprising: a chemical injection conduit;a chemical injector coupled to the chemical injection conduit, wherein the chemical injector is configured to output an emissions control chemical into the chemical injection conduit; anda wave generator c
1. A system, comprising: an emissions control system, comprising: a chemical injection conduit;a chemical injector coupled to the chemical injection conduit, wherein the chemical injector is configured to output an emissions control chemical into the chemical injection conduit; anda wave generator coupled to the chemical injection conduit, wherein the wave generator is configured to output a plurality of waves that propagates through the chemical injection conduit into a flow path of combustion products to drive mixing of the emissions control chemical with the combustion products. 2. The system of claim 1, wherein the chemical injection conduit comprises an upstream portion having the chemical injector and the wave generator, a downstream portion having a chemical injection outlet, and a diverging passage that diverges from the upstream portion to the downstream portion. 3. The system of claim 1, wherein the chemical injector and the wave generator are coupled to the chemical injection conduit in series. 4. The system of claim 3, wherein the chemical injector is disposed upstream from the wave generator relative to a chemical injection outlet of the chemical injection conduit. 5. The system of claim 1, wherein the chemical injector and the wave generator are coupled to the chemical injection conduit in parallel. 6. The system of claim 5, wherein the chemical injection conduit comprises first and second upstream conduit portions each coupled to a downstream conduit portion, the chemical injector is coupled to the first upstream conduit portion, and the wave generator is coupled to the second upstream conduit portion. 7. The system of claim 1, wherein the wave generator comprises an acoustic generator configured to output the plurality of waves as sound waves. 8. The system of claim 7, wherein the acoustic generator comprises a horn. 9. The system of claim 1, wherein the wave generator comprises a shock wave generator configured to output the plurality of waves as shock waves. 10. The system of claim 9, wherein the shock wave generator comprises a pulse detonator. 11. The system of claim 1, comprising a combustion system coupled to the emissions control system. 12. The system of claim 11, wherein the combustion system comprises an engine, a furnace, a boiler, or a combination thereof. 13. A system, comprising: an emissions reduction controller configured to control a chemical injector to output an emissions control chemical into a chemical injection conduit, and the emissions reduction controller is configured to control a wave generator to output a plurality of waves that propagates through the chemical injection conduit into a flow path of combustion products to drive mixing of the emissions control chemical with the combustion products. 14. The system of claim 13, wherein the emissions reduction controller is responsive to feedback indicative of an emissions level in the combustion products. 15. The system of claim 13, wherein the emissions reduction controller is configured to periodically actuate the chemical injector and the wave generator to inject the emissions control chemical and output the plurality of waves into the combustion products. 16. The system of claim 13, wherein the emissions reduction controller is configured to control the wave generator to output the plurality of waves as sound waves or shock waves. 17. The system of claim 13, comprising the chemical injector and the wave generator, wherein the wave generator comprises an acoustic generator or a shock wave generator. 18. A method, comprising: injecting an emissions control chemical into a chemical injection conduit; andgenerating a plurality of waves that propagates through the chemical injection conduit into a flow path of combustion products to drive mixing of the emissions control chemical with the combustion products. 19. The method of claim 18, wherein generating the plurality of waves comprises generating a plurality of sound waves or a plurality of shock waves. 20. The method of claim 18, wherein generating the plurality of waves drives mixing of the emissions control chemical with the combustion products prior to a reaction with a catalyst.
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