Ammonium bisulfate accumulated ash online cleaning system for low-low-temperature coal economizer

The utility model discloses an ammonium bisulfate accumulated ash online cleaning system for a low-low-temperature economizer. After the low-low-temperature economizer reduces the exhaust gas temperature, the flue gas temperature is close to the dew point temperature, the risk of low-low-temperature...

Full description

Saved in:
Bibliographic Details
Main Authors ZHANG LANQING, ZHOU RONGQIN, YUAN WENBING, ZHANG LAIZU, LI RUITANG, LIN JIANG
Format Patent
LanguageChinese
English
Published 23.12.2022
Subjects
BLASTING
COMBUSTION APPARATUS
COMBUSTION PROCESSES
FLUES
HEATING
LIGHTING
MECHANICAL ENGINEERING
REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTIONRESIDUES
WEAPONS
Online AccessGet full text

Cover

More Information
Summary:The utility model discloses an ammonium bisulfate accumulated ash online cleaning system for a low-low-temperature economizer. After the low-low-temperature economizer reduces the exhaust gas temperature, the flue gas temperature is close to the dew point temperature, the risk of low-low-temperature corrosion exists, ammonia escape after denitration exceeds the standard, ammonium bisulfate hardening of a low-low-temperature heating surface is caused, and the surface of the low-low-temperature economizer is contaminated and blocked. The device comprises a low-low-temperature coal economizer (3) arranged in a flue (6), the end of a water outlet pipe (4) of the low-low-temperature coal economizer is communicated with a steam inlet pipe (5), the other water outlet of the low-low-temperature coal economizer is communicated with a drainage outlet pipe, and the drainage outlet pipe is communicated to an inlet of a steam trap (2); and an isolating manual door and an adjusting door are mounted on the steam inlet pipe.
Bibliography:Application Number: CN202222615884U