热连轧线超快冷泵站与轧线联合控制方法  

Interconnected control method between ultra-fast cooling pump and hot strip rolling line

作　　者：江连运[1] 袁国[1] 李振垒[1] 江潇 王学强 吴迪[1] 王国栋[1] 

机构地区：[1]东北大学轧制技术与连轧自动化国家重点实验室,辽宁沈阳110819 [2]河北省首钢迁安钢铁有限责任公司

出　　处：《冶金自动化》2014年第2期44-47,75,共5页Metallurgical Industry Automation

基　　金："十二五"国家科技支撑计划项目(2012BAF04B01)

摘　　要：为了满足热连轧线超快速冷却工艺对水压精准快速控制的要求,根据流体力学和自动控制原理设计了泵站与轧线联合控制供水的方法,即通过泵站液力耦合器开环控制总流量、轧线溢流管路上的气动调节阀闭环控制供水压力。现场应用结果表明,该方法下供水压力和流量的控制精度较高,达到了超快冷工艺要求,解决了在具有一定供水压力要求情况下大流量供水系统采用液力耦合器控制存在的压力及流量稳定性难题。Accurate and fast control requirement should be satisfied in ultra fast cooling process. An integrated control method is designed according to the principle of fluid mechanics and automation. The total flux is controlled by hydrodynamic coupler in pump with open loop and the water pressure is controlled by regulating valve in strip rolling line with closed loop. The test result indicates that the control accuracy of water pressure and pump flux is much better and the requirement of ultra-fast cooling is satisfied. Consequently, the control method solves water pressure and water flux control problem with hydrodynamic coupler.

关 键 词：超快冷 液力耦合器 水压 流量 联合控制 

分 类 号：TG334.9[金属学及工艺—金属压力加工]