铜冶炼余热锅炉给水系统自动控制的实现

来源期刊：冶金自动化2010年第6期

论文作者：步辉

文章页码：39 - 44

关键词：铜冶炼； 余热锅炉； 汽包水位控制； 给水控制

Key words：copper smelting； waste heat recovery boiler； water level control of boiler drum； feed water control

摘    要：以铜冶炼余热锅炉给水系统为对象,根据其生产工艺对给水系统控制的特殊影响以及系统的复杂性,设计了有效的控制方案,主要有汽包水位控制、汽包蒸汽压力控制、除氧器水位及压力控制、水泵联锁及给水压力控制,还有若干非常规调节,包括变PID参数控制和特殊规则控制等。其中,汽包水位控制分为常规控制和结合现场经验开发的特殊控制策略,针对这些控制策略编制了相应的控制程序。生产实践结果表明,这些控制方案均取得了良好的控制效果,实现了铜冶炼余热锅炉给水系统的自动控制。

Abstract: Taking the sophistication of the system and specific impact of the production process on control performance into account,the paper presents a set of effective control schemes to water supply system of copper smelting waste heat recovery boiler,including water level and steam pressure control of boiler drum,water level and pressure control of deaerator,interlocking and feed pressure control of pumps,as well some of the dedicated controls such as variable PID parameters control and special rules control.The water level control of boiler drum comprises conventional control and dedicated control strategies that conform to the experiences of the production fieldwork.The control programs corresponding to these control strategies are developed.The production practice results show that the automatic control of water supply system,which adopts the control schemes as proposed,has obtained good control effect.