注汽锅炉计算机控制系统的设计

本文介绍了注汽锅炉计算机控制系统的控制方案及硬件、软件的具体设计。实现了对锅炉供水系统、负压调节系统以及锅炉燃烧系统的自动控制任务。并且采用热效率自寻优的方法自动调节风煤比，达到了经济燃烧的目的。系统运行表明：本系统大大提高了锅炉运行的稳定性、经济性，减轻了操作人员的劳动强度，收到了满意的控制效果。
关键词：注汽锅炉；热效率；燃烧系统
Abstract：This paper describes the control scheme of computer control system for the steam-injected boiler and the detail design for the hardware and the software. It realizes the automatic control tasks of the boiler’s supplying water system,the regulating system for the negative pressure, the combustion system. And the method of automatic searching for the optimal thermal efficiency is used to regulate the ratio of air to coal and it achieves the aim of efficient combustion.The system’s running shows: this automatic control system improves the boiler’s stability, efficiency greatly, reduces the operator’s labour intensity and the satisfied result is obtained.
Key words：steam-injected boiler; thermal efficiency; combustion system