Abstract:

Abstract:For the near zero emission requirement of thermal power units, this paper acquired the influence factors of mass concentration of NOx at the inlet of denitration device through the variable oxygen volume test, the throttle opening test of separated overfire air (SOFA) and the coal type test. After that, some measures of modifying the oxygen control function, optimizing the throttle opening of SOFA and collocating the coal types reasonably, etc. were proposed, which provided a reference for the operation adjustment of similar units.

Key words:

Keywords:denitration unit, NOx, oxygen volume, separated overfire air (SOFA), coal type