Gas turbine exhaust-heat boiler denitration system and working process thereof
A technology of waste heat boiler and gas turbine, which is applied in gas treatment, membrane technology, and separation of dispersed particles. It can solve the problem of inability to achieve stable ultra-low emission of exhausted flue gas, and achieve high comprehensive utilization rate, high work efficiency, and extended use. The effect of longevity
Pending Publication Date: 2019-07-12
山西华仁通电力科技股份有限公司
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[0003] The purpose of the present invention is to solve the technical problem that the exhaust gas from the existing gas turbine cannot achieve stable ultra-low emission. The present invention provides a gas turbine waste heat boiler denitrification system and its working process
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[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.
[0021] Such as figure 1 As shown, a gas turbine waste heat boiler denitrification system, which includes compressed air storage tank 1, urea solution storage tank 2, urea solution delivery pump 3, adjustment and metering unit 4, urea pyrolysis furnace 8, injection unit 7, cold air control valve 5. Hot flue gas control valve 6, fan 12, waste heat boiler 9, ammonia spray grid 10, catalyst unit 11;
[0022] The ammonia injection grid 10 and the catalyst unit 11 are sequentially arranged in the waste heat boiler 9 along the flow direction of the flue gas; the temperature of the flue gas at the position of the waste heat boiler where the catalyst unit 11 is set is 250-350°C; the waste heat boiler 9 hot flue gas outlets are provided on the flared side wall, and the inlet of the ammonia spray grill 10 is provided at the connection position between t...
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The invention relates to a gas turbine exhaust-heat boiler denitration system and a working process thereof, and belongs to the technical field of boiler denitration. The technical problem that stableultra-low emission of exhaust gas from an existing gas turbine cannot be achieved is solved. According to the technical scheme, the gas turbine exhaust-heat boiler denitration system comprises a compressed air storage tank, an urea solution storage tank, an urea solution delivery pump, an adjusting and metering unit, an urea pyrolysis furnace, an injection unit, a cold air regulating valve, a hot-gas regulating valve, a blower fan, an exhaust-heat boiler, an ammonia injection grid and a catalyst unit. The system of the invention has advantages as follows: the comprehensive utilization ratio is high; the work efficiency is high; and it can be ensured that stable ultra-low emission of exhaust gas from a gas turbine can be achieved.
Description
technical field [0001] The invention belongs to the technical field of boiler denitrification, and in particular relates to a gas turbine waste heat boiler denitrification system and its working process. Background technique [0002] At present, power plant boilers mainly obtain ammonia-air mixture through pyrolysis or hydrolysis, and most of the heat sources are steam, high-temperature air or flue gas. However, due to the high temperature of boiler flue gas, it is easy to cause damage to fans, etc., making it impossible to achieve stable ultra-low emissions. Contents of the invention [0003] The purpose of the present invention is to solve the technical problem that the exhaust gas from the existing gas turbine cannot achieve stable ultra-low emission. The present invention provides a gas turbine waste heat boiler denitrification system and its working process. [0004] The present invention is achieved through the following technical solutions: [0005] A gas turbine ...
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IPC IPC(8): B01D53/94B01D53/56
CPCB01D53/9418B01D2258/0283B01D2251/2062
Inventor 杨文生刘慧军任建立卫鑫李晋杰张畅卫忠华贺郁文
Owner 山西华仁通电力科技股份有限公司