本文關(guān)鍵詞： 狀態(tài)檢測 模糊控制 變頻技術(shù) 人機界面 MCGS　出處：《青島科技大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

【摘要】：井下供水系統(tǒng)是煤礦井下安全生產(chǎn)活動所必須具備的生命系統(tǒng)。不論采掘生產(chǎn)活動,還是礦井“一通三防”,都需要具備足夠壓力的水源來支持,達不到水力要求,不僅直接影響井下各用戶作業(yè)生產(chǎn),同時還將帶來非常重大的安全隱患問題。有些地方水壓過大也要進行控制,若水壓過大會造成爆管的事故。 煤礦井下用水主要是消防用水,噴霧降塵用水,機電設(shè)備的冷卻用水。如果水壓過大,則水量消耗大,同時可能對機電設(shè)備造成爆裂事故。而水壓過小,則水量小致使霧化效果不好,除塵效果差,同時機電設(shè)備的冷卻水量不足而超溫停機。通過現(xiàn)有的井下通訊通道實現(xiàn)地面遙控指揮。通過水位傳感器、壓力控制器、在線檢測流量計、PLC控制開關(guān)并借用井下通訊檢測線纜通道,實現(xiàn)水廠等地點由就地控制改為遠程控制,達到操作自動化功能。不僅減少崗位操作人員,而且節(jié)省了電能,真正實現(xiàn)了崗位本質(zhì)化。本文結(jié)合煤礦生產(chǎn)的實際情況,提出并完成了井下復(fù)雜供水管網(wǎng)壓力自動調(diào)節(jié)與異常預(yù)警系統(tǒng)。 首先分析了目前國內(nèi)外井下恒壓供水的研究現(xiàn)狀,給出了課題研究的目的和意義。 在第二章中研究了典型的井下恒壓供水系統(tǒng)組成,比較各系統(tǒng)的優(yōu)缺點。選擇合適的的硬件設(shè)備,既滿足控制的要求又能盡可能的發(fā)揮其特點。根據(jù)井下的實際運行需要,煤礦井下供水管網(wǎng)不同的位置需要的處理方式也不一樣,在井下不同水平,地勢的不同,用水量根據(jù)生產(chǎn)方式的要求也有很大的差別,有的地方需要電動閘閥減壓,有的需要增壓泵加壓。 通過對模糊系統(tǒng)的理論分析,將水壓控制在一定的范圍之內(nèi)并不要求精確,因此提出模糊控制策略。選擇合適的模糊控制模型,并通過MATLAB的仿真查看其結(jié)果是否滿足模糊控制理論的應(yīng)用能夠使供水量滿足井下生產(chǎn)的要求,結(jié)合井下的設(shè)備必須具有防爆特點,將變頻器改造以符合井下的安全要求,結(jié)合機電設(shè)備群的實際情況,給出了變頻控制的具體實現(xiàn)過程。 最后詳細介紹了系統(tǒng)軟件部分的實現(xiàn)過程。通過MCGS組態(tài)軟件完成對監(jiān)控系統(tǒng)上位機畫面的組建,利用現(xiàn)場的已有的通訊站,通過光線的傳輸方式將井下數(shù)據(jù)傳至地面監(jiān)控中心,構(gòu)建起完整的設(shè)備狀態(tài)監(jiān)控系統(tǒng)。工作人員可以通過上位機組態(tài)畫面實時了解機電設(shè)備運行狀態(tài),時時的觀看井下各種數(shù)據(jù),通過對管道壓力的監(jiān)控,實現(xiàn)及時的預(yù)警。
[Abstract]:The downhole water supply system is the life system necessary for the safe production activities in coal mines. Both the mining and production activities and the "one pass and three prevention" in coal mines require sufficient water sources to support them and fail to meet the hydraulic requirements. It will not only directly affect the production of underground users, but also bring great hidden safety problems. In some places, too much water pressure should be controlled, and if the water pressure exceeds the water pressure, the accident of pipe burst will be caused. Underground coal mine water is mainly used for fire protection, spray and dust control, and cooling of electromechanical equipment. If the water pressure is too high, the water consumption will be high, and at the same time it may cause a burst accident on the mechanical and electrical equipment. But the water pressure is too small. If the amount of water is small, the atomization effect is not good, the dust removal effect is poor, and the cooling water quantity of the electromechanical equipment is insufficient and the cooling water is overheated and shut down. Through the existing underground communication channel, the ground remote control command is realized, and the water level sensor, the pressure controller, On-line detection Flowmeter and PLC control switch and underground communication detection cable channel are used to realize the change from local control to remote control in water plant and achieve the function of operation automation, which not only reduces the number of post operators, but also saves electric energy. Combined with the actual situation of coal mine production, this paper puts forward and completes the automatic pressure regulation and abnormal early warning system of complex underground water supply network. Firstly, the research status of underground constant pressure water supply at home and abroad is analyzed, and the purpose and significance of the research are given. In the second chapter, the composition of the typical underground constant pressure water supply system is studied, and the advantages and disadvantages of each system are compared. The selection of appropriate hardware equipment can not only meet the control requirements but also give full play to its characteristics as far as possible. Different positions of underground water supply networks in coal mines require different treatment methods. At different levels and different terrain, water consumption also varies greatly according to the requirements of the mode of production. In some places, electric gate valves are required to decompress the pressure. Some need booster pump pressure. Through the theoretical analysis of fuzzy system, it is not required to be accurate to control water pressure within a certain range, so a fuzzy control strategy is put forward, and a suitable fuzzy control model is selected. And through the simulation of MATLAB to see if the application of fuzzy control theory can make the water supply meet the requirements of underground production, combined with the underground equipment must have explosion-proof characteristics, the converter is changed to meet the safety requirements. According to the actual situation of electromechanical equipment group, the realization process of frequency conversion control is given. At last, the realization process of the system software is introduced in detail. The upper computer picture of the monitoring system is constructed by MCGS configuration software, and the existing communication station is used in the field. The downhole data is transmitted to the ground monitoring center by the transmission of light, and a complete equipment state monitoring system is constructed. The workers can understand the running state of the electromechanical equipment in real time through the configuration screen of the upper computer. Watch all kinds of underground data from time to time and realize timely early warning by monitoring pipeline pressure.
【學(xué)位授予單位】：青島科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TD744

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