期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
全自动蒸汽疏水回水机及其应用
1
作者 郑恺 冯喆 《应用能源技术》 2012年第10期28-30,共3页
文中介绍了全自动蒸汽疏水回水机技术和自控原理及其应用。全自动蒸汽疏水回水机是专门为换热站设计的蒸汽凝结水节能设备,它用于换热站蒸汽凝结水回收和余热利用具有独到之处并取得了良好的效果。
关键词 蒸汽凝水 自力回水 动力回水 汽水分离 潜热显热 浮球滑阀 液位自控
下载PDF
STUDY ON THE CONTROL SYSTEM OF HYDRAULIC MOMENT-ADJUSTED BRAKE FOR DOWNWARD BELT CONVEYOR
2
作者 孟国营 徐志强 +1 位作者 霍森 方佳雨 《Journal of Coal Science & Engineering(China)》 1997年第1期60-63,共4页
Having analyzed the drawbacks on the design of control system of hydraulic moment-adjusted brake system, the author presents a closed loop control system in the process of start and braking of the conveyer. On the bas... Having analyzed the drawbacks on the design of control system of hydraulic moment-adjusted brake system, the author presents a closed loop control system in the process of start and braking of the conveyer. On the basis of the concept of the critical time and the critical ac-celeration and its deductions, the working mode of the conveyer can be identified and controlled in feedback, furthermore, thus realize the process of soft start. ln the deceleration process, the author points out the problems that exist in the present control system and sets forward the control process that acted by the combined function of brake moment of motor and the drag torque of hy-draulic brake at the beginning of deceleration, it will further improved reliability of conveyor sys-tem. 展开更多
关键词 hydraulic moment-adjusted brake critical acceleration soft start closed-loop control
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部