Study On The Technical Assessment System For Electrostatic Precipitator Of Coal-fired Plant

Emission Standard of Air Pollutants for Thermal Power Plants(GB 13223-2003) compulsory executed in 2004 defined that, the outlet emission standard cannot exceeding to 50 mg/Nm~3.Above 90% electrostatic precipitators (ESP's) served in the coal-fired plant of our country, who are asked to improve the technology of designing, production, assemblage, operation, and equipment performance.At present, about 30% ESP's cannot meet the design efficiency for the problem of lectotype.Draw lessons from technical assessment method of flue gas desulfurization process, the paper employ the technical assessment of ESP's.By integrating the expert's experience and knowledge of designing, production, assemblage, and operation, the paper built up the technical assessment indicatrix body system and assessment system on the base of the ESP's technical investigation. Besides that, the paper exploit an application software for ESP technical assessment system using Visual Basic (VB) and SQL Server, accomplished some critical parameter's preview and combination property calculation step by step. The system, who has practice application value significantly, can improve itself by cut-and-try procedure of successful programmes for its user friendly, convenience, and self-learning, support an technical platform for digital design. Through 6 examples test, the results of software performance can approach to practice, however, there are some nondeterministic reasons need the system to improve.