Abstract:

Abstract:This paper introduced a practical ultra low power sensing and warning system for chimney corrosion based on the problem that chimney will be corrosive after wet flue gas desulfurization process.The design for hardware and software of this system was mainly introduced in this paper.The ultra low power microcontroller MSP430F149 was chosen as a control chip,and alternating current was used instead of direct current power supply as a sensing wire to reduce the lead polarization loss.Also,simplifying procedures in microcontroller control logic can reduce operating load and prolong its service life.The system ensures the maintenance personnel can detect and repair leaks in time,which effectively achieve a safe,stable,reliable and low input chimney leak detection warning system,and a purpose of safe production.

Key words: ">Keywords:">wet flue gas desulfurization process">；">chimney corrosion">；">sensing circuit">；">signal input circuit">；">sensing corrosion