Simulation of Efficiency and Low NOx Combustion-Supporting Technology by Local Oxygen-Enrichment in Pulverized Coal Boiler

2012 ◽  
Author(s):  
Xiang Yuhua ◽  
Zhang Jiayuan ◽  
Zhang Xiaohui ◽  
Li Yongqing ◽  
Gong Ting
Keyword(s):  
Oxygen Enrichment ◽  
Pulverized Coal ◽  
Pulverized Coal Boiler ◽  
Low Nox Combustion ◽  
Coal Boiler ◽  
Local Oxygen

Flow Characteristic of a New Type of Double-Channel Air Burner in Direct Flow Pulverized Coal Boiler

2012 ◽  
Vol 614-615 ◽  
pp. 59-63
Author(s):  
Jian Guo Yang ◽  
Hai Ming Yu ◽  
Li An Fan ◽  
Hong Zhao
Keyword(s):  
Simulation Method ◽  
Pulverized Coal ◽  
Existing Problems ◽  
Pulverized Coal Boiler ◽  
Flow Adjustment ◽  
Coal Powder ◽  
Low Nox Combustion ◽  
New Type ◽  
Coal Boiler ◽  
Double Channel

Tangentially-fired burner is widely used in pulverized coal boiler, but its air burner has some shortcomings, including the velocity of exit airflow weaken with the decrease of the opening degree of the air damper, leading to insufficient mixing between air and coal-powder. In view of the existing problems, a new type of double-channel air burner had been designed. Its flow field and adjustment characteristic were studied by using numerical simulation method. The results showed the double-channel air burner had effective flow adjustment characteristic which closely linearity. One of the channels could keep higher exit velocity when the air volume decrease and it could fulfill the demand of air adjustment better while in low NOx combustion or load variation.

Field measurements on the generation and emission characteristics of PM2.5 generated by utility pulverized coal boiler

2018 ◽  
Vol 91 (6) ◽  
pp. 1009-1020 ◽  
Author(s):  
Qian Du ◽  
Heming Dong ◽  
Donghui Lv ◽  
Lipeng Su ◽  
Jianmin Gao ◽  
...  
Keyword(s):  
Field Measurements ◽  
Pulverized Coal ◽  
Emission Characteristics ◽  
Pulverized Coal Boiler ◽  
Coal Boiler
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