Application of flue gas dry desulfurization control system using PLC in power plant

Author

Chengjing, Huang ; Guobiao, Tan ; Yuqi, Chen

Author_Institution

XUJI LIANHUA Int. Environ. Eng. Ltd. Corp., Beijing, China

fYear

2011

fDate

15-17 April 2011

Firstpage

3017

Lastpage

3020

Abstract

Turbulence CFB(Circulating Fluidized Bed) dry desulfurization technology has advantages such as low investment and operation cost, high desulfurizing efficiency, small land occupation, and without wastewater. So it is suitable for desulfurization remodification of old power plant. This paper introduces the flue gas desulfurization process, network structure, analog variable control system, sequence control system and interlock protection of programmable logic control system for Pingshi power plant in Shaoguan. This desulfurization project has been completed and past the guarantee period. Its desulfurizing efficiency exceeds 85 percent.

Keywords

flue gas desulphurisation; fluidised beds; power generation control; programmable controllers; PLC; analog variable control system; circulating fluidized bed; desulfurization remodification; desulfurizing efficiency; flue gas dry desulfurization control system; guarantee period; interlock protection; land occupation; network structure; programmable logic control system; sequence control system; Control systems; Instruments; Investments; Power generation; Process control; Wastewater; Water; FGD_PLC; analog variable control; dry desulfurization; interlock protection; sequence control;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Information and Control Engineering (ICEICE), 2011 International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-8036-4

Type

conf

DOI

10.1109/ICEICE.2011.5777717

Filename

5777717