本文選題：主通風機 + 監(jiān)控系統(tǒng)　； 參考：《西安科技大學》2015年碩士論文

【摘要】：礦井通風系統(tǒng)是煤礦安全生產(chǎn)的關鍵組成部分,主通風機又是通風系統(tǒng)中極其重要的生產(chǎn)設備,承擔著向井下輸入新鮮空氣和礦井瓦斯抽放的任務。因此,對于主通風機的運行狀況和關鍵參數(shù)進行實時在線監(jiān)控,不僅可以提高礦業(yè)生產(chǎn)的自動化控制水平,還能達到煤礦企業(yè)安全生產(chǎn)的目的。本課題是以陜西榆林某礦業(yè)公司主通風機電控系統(tǒng)改造為背景,通過分析該煤礦礦井主通風機的運行情況,提出了礦井主通風機在線監(jiān)控系統(tǒng)的總體方案。在線監(jiān)控系統(tǒng)結構采用“集中管理,分散控制”的方式,主要由監(jiān)控管理級、基礎控制級和現(xiàn)場測量級三部分構成。按照總體方案的設計思路,本課題完成了礦井主通風機在線監(jiān)控系統(tǒng)的硬件、軟件以及通訊網(wǎng)絡的設計。在硬件設計方面,設計了合理的控制電路,并且對于PLC、變頻器、以及監(jiān)測礦井關鍵參數(shù)如溫度、振動、負壓、瓦斯?jié)舛取L速等傳感器和采集模塊進行了選型和接線設計;在軟件設計方面,利用Siemens公司STEP7-Micro/WIN編程軟件實現(xiàn)了下位機PLC的程序設計,采用PID控制算法設計了風機風量調(diào)節(jié)程序,按照系統(tǒng)控制的工藝要求,使用力控Force Control組態(tài)軟件開發(fā)了上位機監(jiān)控程序,實現(xiàn)了管理人員和監(jiān)控系統(tǒng)的人機對話;在通訊網(wǎng)絡設計方面,在線監(jiān)控系統(tǒng)采用RS-485總線連接方式,利用Modbus通訊協(xié)議,實現(xiàn)了PLC和變頻器、電量采集模塊、模擬量采集模塊以及溫度巡檢儀的通訊連接;另外,通過工業(yè)以太網(wǎng)絡實現(xiàn)了PLC和上位機的數(shù)據(jù)交互。經(jīng)過這三方面的工作,礦井主通風機在線監(jiān)控系統(tǒng)的設計得以完成。本課題將PLC控制技術、變頻調(diào)速技術、工業(yè)通訊技術以及計算機監(jiān)控技術有機的結合應用到礦井主通風機監(jiān)控系統(tǒng)中,具有重要的理論意義。該系統(tǒng)的現(xiàn)場應用,優(yōu)化了礦井通風系統(tǒng),提高了通風效率,具有較大的實踐應用價值。
[Abstract]:Mine ventilation system is a key component of coal mine safety production, and the main ventilator is an extremely important production equipment in the ventilation system, which undertakes the task of importing fresh air and mine gas drainage to the underground. Therefore, the real-time on-line monitoring of the running condition and key parameters of the main ventilator can not only improve the level of automation control of mining production, but also achieve the purpose of safety production in coal mining enterprises. This subject is based on the transformation of the main ventilator electric control system of a mining company in Yulin, Shaanxi province. By analyzing the operation of the main ventilator in the coal mine, the overall scheme of the on-line monitoring system of the mine main ventilator is put forward. The structure of on-line monitoring system adopts the mode of "centralized management and decentralized control", which is mainly composed of three parts: supervisory management level, basic control level and field measurement level. According to the design idea of the overall scheme, the design of the hardware, software and communication network of the mine main fan on-line monitoring system is completed. In the aspect of hardware design, reasonable control circuit is designed, and the key parameters such as temperature, vibration, negative pressure, gas concentration, wind speed and so on are selected and connected to PLC, frequency converter and key parameters such as temperature, vibration, negative pressure, gas concentration, wind speed and so on. In the aspect of software design, the program design of PLC is realized by using Siemens' STEP7-MicroWIN programming software, and the control program of fan's air volume is designed by using pid control algorithm, according to the technological requirements of the system control. The monitoring program of upper computer is developed by using force control configuration software, which realizes the man-machine dialogue between manager and monitoring system. In the aspect of communication network design, the on-line monitoring system adopts RS-485 bus connection mode, and uses Modbus communication protocol. The communication connection between PLC and inverter, electric quantity acquisition module, analog quantity acquisition module and temperature inspection instrument is realized. In addition, the data interaction between PLC and host computer is realized through industrial Ethernet network. After these three aspects of work, the design of mine main fan online monitoring system has been completed. This subject will PLC control technology, frequency conversion speed control technology, industrial communication technology and computer monitoring technology organic application in mine main fan monitoring system, has important theoretical significance. The field application of the system optimizes the mine ventilation system and improves the ventilation efficiency, which has great practical application value.
【學位授予單位】：西安科技大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TD635;TP277

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