本文選題：井下排水　切入點(diǎn)：PLC　出處：《西安科技大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：煤礦井下排水系統(tǒng)在煤礦安全生產(chǎn)中占據(jù)重要地位。同時(shí),該系統(tǒng)也是能耗大戶,因此,建立安全、可靠、經(jīng)濟(jì)運(yùn)行的排水系統(tǒng),對(duì)煤礦生產(chǎn)具有現(xiàn)實(shí)意義。本文在調(diào)研和分析了我國(guó)現(xiàn)有井下排水系統(tǒng)存在問(wèn)題的基礎(chǔ)上,以山西省唐山溝煤礦為例,對(duì)其原有排水系統(tǒng)進(jìn)行了自動(dòng)化改造。總體方案中,考慮到該礦水文地質(zhì)條件較復(fù)雜,有突發(fā)透水事故的隱患,加入了以潛水泵為核心的強(qiáng)排系統(tǒng),通過(guò)監(jiān)測(cè)涌水速率的異常變化,控制強(qiáng)排系統(tǒng)工作,提高了整個(gè)系統(tǒng)的安全性;對(duì)排水系統(tǒng)的重要輔件手動(dòng)閘閥進(jìn)行了電控改造,實(shí)現(xiàn)了閘閥的自動(dòng)啟閉。系統(tǒng)設(shè)計(jì)有遠(yuǎn)程自動(dòng)、就地自動(dòng)、遠(yuǎn)程手動(dòng)和就地手動(dòng)四種控制模式,可根據(jù)工況進(jìn)行切換。主控系統(tǒng)選用西門子S7-1200系列PLC作為中央控制器,擴(kuò)展了模擬量輸入模塊、數(shù)字量輸入模塊和通訊模塊進(jìn)行功能控制,并對(duì)系統(tǒng)前端工作設(shè)備、傳感器、PLC各控制模塊進(jìn)行選擇且進(jìn)行了點(diǎn)數(shù)分配。系統(tǒng)在軟件上采用結(jié)構(gòu)化設(shè)計(jì),根據(jù)節(jié)約能耗的原則,建立“避峰填谷”排水模型,合理調(diào)度水泵的工作時(shí)間;根據(jù)水泵的邏輯控制,建立水泵輪替工作制,以達(dá)到優(yōu)化水泵運(yùn)行及提高其使用壽命的目的。本論文研制的排水系統(tǒng)主要特點(diǎn):系統(tǒng)各工作參數(shù)實(shí)時(shí)檢測(cè)與顯示;水泵自動(dòng)啟停;設(shè)計(jì)了較完善的保護(hù)和報(bào)警功能,如電機(jī)故障保護(hù)、水泵欠壓報(bào)警等;支持觸摸屏進(jìn)行現(xiàn)場(chǎng)調(diào)試;系統(tǒng)可與地面監(jiān)控中心聯(lián)網(wǎng),以便于集中管理。在本論文研究期間,通過(guò)與西安礦用自動(dòng)化設(shè)備有限公司的項(xiàng)目合作,對(duì)山西大同唐山溝煤礦中央水泵房進(jìn)行了實(shí)地調(diào)研,研制了井下自動(dòng)排水系統(tǒng),通過(guò)對(duì)該系統(tǒng)的調(diào)試,驗(yàn)證了設(shè)計(jì)的可行性。
[Abstract]:The underground drainage system plays an important role in the safe production of coal mine. At the same time, the system is also a large energy consumption, therefore, to establish a safe, reliable and economical drainage system, On the basis of investigating and analyzing the existing problems of underground drainage system in our country, taking Tangshangou Coal Mine in Shanxi Province as an example, this paper has carried on the automation transformation to its original drainage system. Considering the complex hydrogeological conditions of the mine and the hidden trouble of sudden water permeation accident, a strong drainage system with submersible pump as the core is added. By monitoring the abnormal variation of the water inflow rate, the work of the strong drainage system is controlled, and the safety of the whole system is improved. In this paper, the important auxiliary parts of drainage system manual gate valve have been reformed by electric control, and the automatic opening and closing of gate valve have been realized. The system design has four control modes: remote automatic, local automatic, remote manual and local manual. The main control system selects Siemens S7-1200 series PLC as the central controller, expands the analog input module, the digital input module and the communication module to carry on the function control, and to the system front-end working equipment, the main control system selects the Siemens S7-1200 series PLC as the central controller. The sensor PLC control module is selected and the number of points is allocated. The system adopts structured design in software. According to the principle of saving energy consumption, the drainage model of "avoiding peak and filling valley" is established, and the working time of water pump is reasonably dispatched. According to the logical control of the pump, the system of water pump rotation is established to optimize the operation of the pump and improve its service life. The main features of the drainage system developed in this paper are: the real-time detection and display of the system working parameters; Automatic starting and stopping of water pump; design of perfect protection and alarm function, such as motor fault protection, water pump under-pressure alarm, etc.; support touch screen for on-site debugging; the system can be connected with ground monitoring center, In order to facilitate centralized management, during the research period of this paper, through the cooperation with the project of Xi'an Mine Automation equipment Co., Ltd, a field investigation was carried out on the central water pump house of Datong Tangshanggou Coal Mine in Shanxi Province, and the underground automatic drainage system was developed. The feasibility of the design is verified by debugging the system.
【學(xué)位授予單位】：西安科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TD636;TP273

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