Low-Firing Rate Oxy-Fuel Flat Flame Burner with Oxygen Staging
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机译：带氧气分级的低燃速氧气燃料平面火焰燃烧器
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摘要
A flat flame oxy-fuel burner including a gaseous fuel nozzle having a hydraulic diameter Dh-NG and a width to height ratio w/a of at least 2; a primary oxidant conduit surrounding the fuel nozzle to form an annular primary oxidant nozzle between the fuel nozzle and the oxidant conduit, the oxidant conduit having a height b, the respective outlet ends of the fuel nozzle and the oxidant nozzle being aligned; and a precombustor extending from the outlet end of the fuel and oxidant nozzles and having a length L and a hydraulic diameter Dh; wherein the ratio L/Dh is non-zero and less than or equal to 4; wherein the ratio L/Dh-NG, is non-zero and less than or equal to 12; and wherein the dimensions a, b, and w are sized to yield a primary oxidant Reynolds number from 200 to 22,000 during burner is operation at 0.05 to 1 MMBtu/hr.
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机译：一种平板式火焰氧燃料燃烧器，包括气态燃料喷嘴，该气态燃料喷嘴的水力直径D h-NG 且宽高比w / a至少为2;围绕燃料喷嘴的初级氧化剂导管，以在燃料喷嘴和氧化剂导管之间形成环形初级氧化剂喷嘴，氧化剂导管具有高度b，燃料喷嘴和氧化剂喷嘴各自的出口端对齐;从燃料喷嘴和氧化剂喷嘴的出口端延伸并具有长度L和水力直径D h 的预燃烧器;其中比率L / D h 为非零且小于或等于4;其中比率L / D h-NG 为非零且小于或等于12;并且其中尺寸a，b和w的尺寸被确定为在燃烧器以0.05至1MMBtu / hr的速度运行期间产生200至22,000的一次氧化剂雷诺数。
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