摘要
高炉减压阀组液压系统控制,一直使用的是日本NIRECO公司生产的电液喷射管式自动控制装置,主要应用于宝钢高炉以及热轧等设备所需的空气、煤气、供水等流体输送管路控制上,属于上世纪七十年代的早期技术应用,主要规格有EHJ换位器、AJ系列换位器、R形调节机构等,其功能是把液压站输出的液压能转化为机械能,控制一个流体输送管路上的阀门(主要是蝶阀或球阀)的开闭位置和速度,从而实现对输送介质流量的控制,该系统备件核心部件是一种电液伺服阀,为射流管阀结构。现在以常用的EHJ换位器为例,探究了其工作原理、存在的问题以及如何进行改进。
The NIRECO company's production of electric liquid injection pipe automatic control device, mainly used in Baosteel blast furnace and hot rolling equipment such as air, gas, water and other liquid delivery pipeline control, belongs to the last century seventy's early technology applications. The main specifications have EHJ converter, AJ series, series, R type regulator, and its function is to transform the hydraulic pressure energy of hydraulic station into mechanical energy and control a fluid conveying pipe valve (mainly butterfly valve or ball valve) open and close po-sition and speed, so as to realize the transmission medium flow control. The core part of the system is an electro-hy-draulic servo valve. As an example, the working principle and existing problems of EHJ converter are studied and discussed in this paper.
出处
《流体传动与控制》
2015年第6期41-44,共4页
Fluid Power Transmission & Control
关键词
自动控制装置
电液伺服阀
换位器
改进
automatic cntrol device
electro hydraulic servo valve
transposition device
improvement
