摘要 |
Device for controlling NH3 injection in flue gas denitrification comprises: a system (8) measuring NOx concn. in exhaust gas entering a denitrification unit (3), a unit that determines an NH3 base quantity, a unit (28) emitting pulses in response to the exhaust gas flow rate and sharp NOx concn. changes, a unit emitting pulses corresp. to the difference between NOx observed and set values, a unit (32) metering the denitrification unit outlet NH3 concn., a unit (10) that forecasts residual NH3 concn. at the denitrification unit outlet on the basis of the exhaust gas NOx concn. denitrification rate and amt. of NH3 injected and a unit that outputs NH3 injection correction pulses based on the forecast residual NH3 concn. |
申请人 |
MITSUBISHI JUKOGYO K.K., TOKIO/TOKYO, JP |
发明人 |
SAGARA, KAZUO MITSUBISHI JUKOGYO KABUSHIKI KAISA, TOKYO 100, JP;NAGAI, TOMOYUKI, 5-1, MARUNOUCHI 2-CHOME CHIYODA-KU TOKYO, JP;ARAKI, SOICHI N.S.& E.W. MITSUBISHI J.K.K., NAGASAKI PREF. 850, JP;DEMOTO, MASANORI N.S.& E.W. MITSUBISHI J.K.K., NAGASAKI PREF. 850, JP |