自动限速风动潜水泵控制系统的设计与实验研究

发布时间：2018-03-23 21:28

本文选题：风动潜水泵　切入点：自动限速　出处：《安徽理工大学》2017年硕士论文

【摘要】：在煤矿企业开采煤矿的过程中,由于矿井内突水、透水易发生矿井水灾,无法保证井下正常的生产和安全,井下排水系统担负着煤矿井下安全生产的重任,一直是生产当中的重中之重,矿井潜水泵由于其灵活性可在地面进行正常工作,解决煤矿企业矿下施工排水的难题,能有效满足正常工矿开采、矿井下突水以及透水时能及时排水的需求。矿用潜水泵运行环境恶劣、运转情况复杂,所以对于其安全性和可靠性要求极为重要。相比电动潜水泵,风动潜水泵由于采用压缩空气作为动力源,安全性好,使用成本低,便于携带并且应用灵活,因此在煤矿井下中小规模排水作业时应用较广。但是由于风动潜水泵在井下非连续工作过程中易出现轻载或空载,其极限转速可高达12000r/min～16000 r/min,此时水泵转速过快,极易造成"飞车"现象,造成涡轮叶片和泵体侧壁破碎,存在极大的安全隐患。为了防止"飞车"现象的发生,实现安全可靠、连续无人值守的自动化排水作业,急需一种自动限速风动潜水泵控制系统。论文研究的重点是:针对风动潜水泵轻载或空载运行时的出现的"飞车"现象,设计轻载或空载时自动限速"防飞车"风动潜水泵控制系统,提出相关的基本原理和设计相关的实验验证方法,并对气动控制系统进行仿真分析,根据气动控制系统结构图,在仿真软件AMESim中搭建气动控制系统的仿真模型,验证自动限速系统对风动潜水泵的正常工作无影响,通过设计实验和工业实验,实现风动潜水泵的自动限速,提高了矿井潜水泵监控的自动化。具体内容如下:首先,论文从自动限速控制系统的总体设计入手,对气动控制系统、液位控制系统的结构设计进行了介绍;其次,对防爆箱体框架的进行了设计制造,对电-气系统元器件进行选择,根据自动限速风动潜水泵控制系统设计了模拟实验,并验证了功能;再次,对自动限速风动潜水泵控制进行工业实验,对自动限速技术进行调试和研究,最后,基于AMESim仿真软件,验证自动限速系统对风动潜水泵的正常工作无影响。
[Abstract]:In the process of mining coal mine in coal mine enterprises, due to the water inrush in the mine, the permeable water is easy to occur in the mine flood, which can not guarantee the normal production and safety in the underground, the underground drainage system bears the heavy responsibility of safe production in the underground coal mine. It has always been a top priority in production. Because of its flexibility, the submersible pump can carry out normal work on the ground, solve the problem of drainage under coal mine construction, and can effectively meet the normal mining. Mine water inrush and water permeation can be timely drainage requirements. Mining submersible pump operating environment is bad, operation is complex, so for its safety and reliability requirements are extremely important. Compared with electric submersible pump, With compressed air as power source, pneumatic submersible pump is safe, low cost, easy to carry and flexible in application. Therefore, it is widely used in small and medium scale drainage operation in coal mine. However, because the pneumatic submersible pump is easy to appear light load or no load in the downhole discontinuous working process, its limit speed can be as high as 12000r/min~16000 r / min, and the speed of the pump is too fast. It is easy to cause the phenomenon of "flying car", resulting in the breakage of the side wall of turbine blade and pump body, and there are great safety hidden dangers. In order to prevent the phenomenon of "flying car" from happening, to realize the automatic drainage operation, which is safe and reliable and continuously unattended, An automatic speed limiting pneumatic submersible pump control system is urgently needed. The control system of "anti-flying vehicle" pneumatic submersible pump with automatic speed limit under light load or no-load is designed. The related basic principle and experimental verification method are put forward, and the simulation analysis of pneumatic control system is carried out, according to the structure diagram of pneumatic control system, The simulation model of pneumatic control system is built in the simulation software AMESim to verify that the automatic speed limiting system has no effect on the normal operation of the pneumatic submersible pump. The automatic speed limit of the pneumatic submersible pump is realized by designing experiments and industrial experiments. The automation of mine submersible pump monitoring is improved. The specific contents are as follows: firstly, the paper introduces the structure design of pneumatic control system and liquid level control system from the overall design of automatic speed limiting control system. The explosion-proof box frame is designed and manufactured, the components of electro-pneumatic system are selected, the simulation experiment is designed according to the control system of automatic speed limiting pneumatic submersible pump, and the function is verified. The industrial experiment on the control of automatic speed limiting pneumatic submersible pump is carried out, and the automatic speed limiting technology is debugged and studied. Finally, based on AMESim simulation software, it is verified that the automatic speed limit system has no effect on the normal operation of the pneumatic submersible pump.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TD636;TP273

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