Invention Grant
US09453646B2 Method for air entry in liner to reduce water requirement to control NOx
有权
内衬空气进入方法,以减少控制NOx的用水量
- Patent Title: Method for air entry in liner to reduce water requirement to control NOx
- Patent Title (中): 内衬空气进入方法,以减少控制NOx的用水量
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Application No.: US14608342Application Date: 2015-01-29
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Publication No.: US09453646B2Publication Date: 2016-09-27
- Inventor: Arjun Singh
- Applicant: General Electric Company
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agency: Nixon & Vanderhye P.C.
- Main IPC: F02C1/00
- IPC: F02C1/00 ; F23R3/06 ; F23R3/04

Abstract:
An improved combustor is disclosed in which conventional combustion is changed to “rich to quench to lean” by changing the air entry arrangement in the liner of the combustor to remove mixing holes, reduce liner cooling and admit dilution air into the combustor liner in place of mixing air. In an alternative embodiment, dilution air is admitted into the combustor liner with the help of a plurality of pipes arranged so that air comes into the liner as a swirling flow in a direction opposite to nozzle swirl, so as to thereby produce a large mixing of air with the combustion gases and a resulting quenching effect, i.e., a rapid cooling of the combustion gases by quenching air. As such, the requirement for cooling water to quench the combustion gases is significantly reduced, thereby helping turbine efficiency and reducing turbine emissions.
Public/Granted literature
- US20160223200A1 NOVEL METHOD FOR AIR ENTRY IN LINER TO REDUCE WATER REQUIREMENT TO CONTROL NOX Public/Granted day:2016-08-04
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