Ammonia Escape Application of power plant
Customer Name ：China Datang Coporation
Running Time ：2017-04
Site Condition: there are 8 stations in the field, 1-6# unit is 330MW, and 7-8# unit is 600MW. The exhaust gas situation as follows:
Running Time ：2017-04
Site Condition: there are 8 stations in the field, 1-6# unit is 330MW, and 7-8# unit is 600MW. The exhaust gas situation as follows:
Field process: after the furnace flue gas comes out, it is denitrification through the first grade SNCR (the ratio of urea adding water), and then denitration by the SCR denitration device.
Measured Gas： NH3 ：0-20ppm
The sampling point is on the slope of the rectangular flue before the 2# unit SCR denitration pipe exits.
Flue gas temperature : 400 ℃ ,
Pipe diameter ：2 meters.
Gas flow velocity: 0-30m/s
Gas pressure： -5Kpa ~ +5Kpa
Flue gas temperature： 400℃.
The change trend of ammonia injection and ammonia escape system
The following is the feedback from the on-site customer 24 hours of ammonia and ammonia escape system changes, the green line is the amount of ammonia spray curve, red line is ammonia escape curve, it can be seen that ammonia escape decreases with decreasing the amount of ammonia spray, with increasing the amount of ammonia spray and high rise the amount of ammonia and ammonia escape.