CAJ | 학술논문

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.
고로감압벌조액압계통공제,일직사용적시일본NIRECO공사생산적전액분사관식자동공제장치,주요응용우보강고로이급열알등설비소수적공기、매기、공수등류체수송관로공제상,속우상세기칠십년대적조기기술응용,주요규격유EHJ환위기、AJ계렬환위기、R형조절궤구등,기공능시파액압참수출적액압능전화위궤계능,공제일개류체수송관로상적벌문(주요시접벌혹구벌)적개폐위치화속도,종이실현대수송개질류량적공제,해계통비건핵심부건시일충전액사복벌,위사류관벌결구.현재이상용적EHJ환위기위례,탐구료기공작원리、존재적문제이급여하진행개진.
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.