Abstract:Recent years, government’s regulation of power plant pollution emission became more and more strict. Technology applied to achieve ultralow emission will affect the design continuous emission monitoring system (CEMS). The operation principle of CEMS was introduced. Combined with twintower cascade, twintower duocycle and twintower multiple and other ultralow emission technology, the affection of different ultralow emission technologies on the design of CEMS was analyzed.

Keywords:coalfired unit, ultralow emission, gas flow emission continuous detecting system, high accuracy, wet type electrostatic precipitator