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发明公开
CN109931626A 一种用于IGCC电站燃机的增效减排装置 审中-实审

一种用于IGCC电站燃机的增效减排装置
摘要：
本发明提供的一种用于IGCC电站燃机的增效减排装置，包括污氮气收集装置和循环换热系统，其中，污氮气收集装置安装在IGCC电站燃机空分装置污氮气管道上，污氮气收集装置的出口通过循环换热系与IGCC电站燃机中的压气机进口连接；循环换热系统包括冷却塔，所述冷却塔的进气口与污氮气收集装置的出口连接，冷却塔中降温后的污氮气出气口与燃机压气机进口连接；本发明通过降低燃烧室内氧气的含量，进而降低燃烧室内的局部最高温度，而平均温度基本不变，从而使得燃机发电系统的NOx排放量大幅度的降低；同时，通过利用污氮气循环换热系统降低了燃机压气机的进气温度，进而提高了燃机发电系统的发电效率。
摘要（英）：

The invention provides an effect improving and emission reducing device for an IGCC power station gas turbine. A dirty nitrogen collecting device and a circulation heat exchange system are included. The dirty nitrogen collecting device is arranged on a dirty nitrogen pipeline of an IGCC power station gas turbine air separation device. An outlet of the dirty nitrogen collecting device is connectedwith a gas compressor inlet of the IGCC power station gas turbine through the circulation heat exchange system. The circulation heat exchange system comprises a cooling tower, a gas inlet of the cooling tower is connected with the outlet of the dirty nitrogen collecting device, and a cooled dirty nitrogen gas outlet in the cooling tower is connected with a gas turbine gas compressor inlet. Throughreduction of the content of oxygen in a combustion chamber, the local highest temperature in the combustion chamber is reduced, the average temperature is basically not changed, and accordingly, theNOx emission of a gas turbine power generation system is greatly reduced. Meanwhile, through utilization of the dirty nitrogen circulation heat exchange system, the gas inlet temperature of the gas turbine gas compressor is reduced, and accordingly the power generation efficiency of the gas turbine power generation system is improved.

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