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发明公开
CN105674322A 富氧燃烧锅炉的氧气注入装置及富氧燃烧锅炉 无效 - 驳回

富氧燃烧锅炉的氧气注入装置及富氧燃烧锅炉
摘要：
本发明公开了一种富氧燃烧锅炉及其氧气注入装置，该氧气注入装置包括尾气循环烟道(1)，该尾气循环烟道(1)的入口连接于所述富氧燃烧锅炉的炉膛尾气排放口，并且该尾气循环烟道(1)的出口连接于所述富氧燃烧锅炉的燃烧器，其中，所述尾气循环烟道(1)的内部均匀地插入多根氧气注入管(2)，并且该氧气注入管(2)的管壁上设有均匀排列的多个氧气喷射孔。通过在尾气循环烟道中均匀地布置多根氧气注入管，并且在每根氧气注入管的管壁上均匀地设置氧气喷射孔，因此可以在尾气循环烟道中形成均匀分布的氧气喷射气流，从而能够将氧气均匀地分散到尾气中，提高气体进入锅炉炉膛后的燃烧效率。
摘要（英）：

The invention discloses an oxygen-enriched combustion boiler and an oxygen injection device thereof.The oxygen injection device comprises a tail gas circulation flue (1), an inlet of the tail gas circulation flue (1) is connected to a hearth tail gas discharging opening of the oxygen-enriched combustion boiler, and an outlet of the tail gas circulation flue (1) is connected to a burner of the oxygen-enriched combustion boiler, wherein multiple oxygen injection pipes (2) are uniformly inserted into the tail gas circulation flue (1) and the pipe wall of each oxygen injection pipe (2) is provided with multiple oxygen jetting holes which are uniformly arranged.According to the oxygen-enriched combustion boiler and the oxygen injection device thereof, the multiple oxygen injection pipes are uniformly arranged in the tail gas circulation flue, and the and the pipe wall of each oxygen injection pipe is uniformly provided with the oxygen jetting holes, so that oxygen jetting air flow which is uniformly distributed can be formed in the tail gas circulation flue, thereby oxygen can be uniformly dispersed into tail gas, and combustion efficiency of gas after entering a boiler furnace is improved.

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