首页>
外国专利>
Burner for operating gas turbines with minimal NOx emissions
Burner for operating gas turbines with minimal NOx emissions
展开▼
机译:用于燃气轮机的燃烧器,NOx排放量最少
展开▼
页面导航
摘要
著录项
相似文献
摘要
A porous, low-conductivity material formed of metal or ceramic fibers provides the burner face of a gaseous fuel combustor for gas turbines capable of minimizing nitrogen oxides (NOX) emissions in the combustion product gases. A preferred burner face, when fired at atmospheric pressure, yields radiant surface combustion with interspersed areas of blue flame combustion. A rigid but porous mat of sintered metal fibers with interspersed bands of perforations is illustrative of a preferred burner face that can be fired at pressures exceeding 3 atmospheres at the rate of at least about 500,000 BTU/hr/sf/atm. By controlling the excess air admixed with the fuel in the range of about 40% to 150% to maintain an adiabatic flame temperature in the range of about 2600° F. to 3300° F., the NOX emissions are suppressed to 5 ppm and even below 2 ppm. At all times, carbon monoxide and unburned hydrocarbons emissions do not exceed 10 ppm, combined.
展开▼
机译:由金属或陶瓷纤维制成的多孔,低电导率的材料为燃气轮机提供了一种气体燃料燃烧器的燃烧器表面,该燃烧器的燃烧器表面能够使燃烧产物气体中的氮氧化物(NO X Sub>)排放量降至最低。当在大气压下点火时,优选的燃烧器面会产生带有蓝色火焰燃烧散布区域的辐射表面燃烧。带有散布的穿孔带的烧结金属纤维的刚性但多孔的垫子说明了优选的燃烧器面,该燃烧器面可以在超过3个大气压的压力下以至少约500,000 BTU / hr / sf / atm的速率燃烧。通过将与燃料混合的过量空气控制在约40%至150%的范围内,以将绝热火焰温度维持在约2600℃的范围内。 F.至3300度; F.,NO X Sub>的排放被抑制到5 ppm,甚至低于2 ppm。在任何时候,一氧化碳和未燃烧的碳氢化合物的总排放量不超过10 ppm。
展开▼