650 t重载套管下放设备液压系统的研制  

The development of hydraulic system for 650 t heavy-duty casing lowering equipment

作　　者：黄江涛 孙军盈 王春蕾 刘颖毅 苗越宾 孙卫娜 黄东帅 王悦 周子强 HUANG Jiangtao;SUN Junying;WANG Chunlei;LIU Yingyi;MIAO Yuebin;SUN Weina;HUANG Dongshuai;WANG Yue;ZHOU Ziqiang(China Geological Equipment Research Institute Co.,Ltd,Beijing 100120,China;The Fourth Institute of Resources and Environment Investigation of Henan Province Co.,Ltd,Zhengzhou 450016,China)

机构地区：[1]中地装(北京)科学技术研究院有限公司,北京100120 [2]河南省资源环境调查四院有限公司,郑州450016

出　　处：《地质装备》2025年第2期6-11,共6页Equipment for Geotechnical Engineering

摘　　要：基于国内尚未有专用的大口径竖井重载套管下放设备的现状,根据所研制的重载套管下放设备,结合重载套管下放设备的作业流程、套管下放实际工况和安全需求,研制了650 t重载套管下放设备闭式液压系统。该液压系统通过比例伺服阀控制平衡阀开启压力,实现起升卷扬的速度控制;液控换向阀控制平衡阀先导控制油路通断,实现实时负载失速保护功能;紧急制动阀组实现了纯液压方式的终极制动;特别设计的独立冲洗换热回路实现了短时大热量的能量置换;集成式传动与控制系统使液压和电控系统具备模块化、易运输、便维护的特性。应用结果表明,该液压系统性能稳定可靠,方便运输及维修,可满足650 t重载套管下放的使用要求。Based on the current situation that there is no specialized heavy-duty casing lowering equipment for large-diameter vertical shaft in China,a closed-hydraulic system for 650 t heavy-duty casing lowering equipment has been developed according to the developed heavy-duty casing lowering equipment combined with its operation flow,actual working conditions and safety requirements of the heavy-duty casing lowering equipment.The hydraulic system controls the opening pressure of balance valve through a proportional servo valve to achieve the speed control of lifting winch,manages the on/off state of balance valve pilot control circuit through hydraulic directional valve to achieve real-time load stall protection function,achieves ultimate braking in pure hydraulic mode with emergency brake valve group and short-term high-capacity energy exchange specially designed independent flushing and heat exchange circuit,and endows hydraulic and electrical control systems with modular,easy to transport and maintain characteristics with the integrated transmission and control system.The application results show that this hydraulic system has stable and reliable performance,is convenient for transportation and maintenance,and can meet the requirements for 650 t heavy-duty casing lowering.

关 键 词：套管下放 起升卷扬 闭式液压系统 平衡阀 

分 类 号：P634[天文地球—地质矿产勘探]