PLC启闭机液压系统设计及其故障诊断
摘要船闸系统是水利工程的重要组成部分，它的安全运行至关重要，假如发生故障就会对整个水利工程，乃至整个流域造成严重的危害；而且船闸系统较为复杂，产生故障之后找出故障源困难，维修不方便，因而建立船闸故障诊断系统对船闸进行故障诊断具有十分重要的意义。52354
液压传动与控制技术因具有功率体积比大、传动平稳、调速方便、易于实现自动控制及遥控等优点, 在水利水电设备上得到了很好的应用和推广,其中液压启闭机是水利水电工程中使用最广泛、数量最多的液压设备, 是所有类型的水利液压设备的代表。并且船闸的启闭机系统的正常运行则是船闸安全与畅通的运行的前提,因此船闸启闭机系统的安全可靠、故障率低、便于维修已成为各个船闸的客观需求。
本项目对船闸启闭机进行研究，通过对数据与故障现象的相关性分析，及时发现设备的故障趋势和安全隐患，增强船闸预警预控手段，避免重大事故的发生。
毕业论文关键词：船闸；启闭机液压系统；故障树；故障诊断
Abstract
Hydraulic sluice system is an important component of its safe operation is essential, if a failure occurs on the entire water conservancy projects, and even cause great harm to the entire basin; and lock system is more complex, it is hard to find fault faulty source maintenance inconvenient, so establishing fault diagnosis system for fault diagnosis lock has very important significance.
Hydraulic drive and control technology due to a power volume ratio、smooth transmission、speed 、easy to implement automatic control and remote control,etc.In water conservancy and hydropower equipment to get a better application and promotion, which is a hydraulic hoist Water Resources and Hydropower the most widely used project, the largest number of hydraulic equipment, hydraulic equipment for all types of water conservancy representatives .And the sluice gate hoist system is a prerequisite lock safety and smooth flow, and thus lock hoist system safe and reliable, low failure rate, easy maintenance has become the objective needs of the various locks.
The project studied hoist lock , through the phenomenon of data and fault correlation analysis, to detect equipment failure trends and security risks, enhancing early warning pre-control lock means to prevent major accidents.
Keywords: Sluice; hoist hydraulic system ; fault tree ; fault diagnosis
目 录第一章 绪论 1
1.1 选题的目的及意义 1
1.3 主要研究内容 2
1.4 论文安排 3
1.5 本章小结 3
第二章 船闸液压启闭机液压系统设计 4
2.1 船闸运行原理及结构组成 4
2.2 船闸液压启闭机工作原理及结构组成 5
2.3 插装阀 5
2.4 船闸液压启闭机液压系统 7
2.4.1 开闸门液压原理图及分析 9
2.4.2 关闸门液压原理图及分析 11
2.4.3 提阀门液压原理图及分析 13
2.4.4 强落阀门液压原理图及分析 15
2.4.5 自落阀门液压原理图及分析 17
2.5 本章小结 18