檸條塔煤礦換熱站監(jiān)控系統(tǒng)的設(shè)計(jì)與研究

1、論文題目：檸條塔煤礦換熱站監(jiān)控系統(tǒng)的設(shè)計(jì)與研究專業(yè)：電氣工程碩士生：朱信龍(簽名)指導(dǎo)教師：付周興（校內(nèi)）(簽名)任長(zhǎng)忠（校外）(簽名)摘要換熱站是供熱系統(tǒng)的重要組成部分，是連接熱源和熱負(fù)荷的樞紐，承擔(dān)著整個(gè)系統(tǒng)高效運(yùn)行的重要任務(wù)。對(duì)換熱站監(jiān)控技術(shù)進(jìn)行研究，實(shí)現(xiàn)換熱站的智能化控制，有一定的經(jīng)濟(jì)效益和社會(huì)效益。本文以檸條塔煤礦換熱站系統(tǒng)改造工程為背景，在對(duì)系統(tǒng)連接方式、水力和熱力工況，以及運(yùn)行控制調(diào)節(jié)等特性理論研究的基礎(chǔ)上，針對(duì)檸條塔煤礦

2、冬季寒冷，晝夜溫差懸殊的氣候特點(diǎn)，提出了該煤礦換熱站系統(tǒng)的運(yùn)行調(diào)節(jié)方式。一方面換熱站系統(tǒng)根據(jù)室外溫度的變化二級(jí)管網(wǎng)側(cè)主動(dòng)地進(jìn)行質(zhì)調(diào)節(jié)，相應(yīng)地一級(jí)管網(wǎng)側(cè)通過(guò)控制電動(dòng)閥門(mén)的開(kāi)度進(jìn)行量調(diào)節(jié)；另一方面換熱站的二次管網(wǎng)通過(guò)循環(huán)泵的變頻調(diào)速來(lái)進(jìn)行流量調(diào)節(jié)，目的是適應(yīng)二次管網(wǎng)的負(fù)荷變化。根據(jù)監(jiān)控系統(tǒng)的功能要求，采用各換熱站單獨(dú)控制和監(jiān)控中心集中管理的控制方案，進(jìn)行二次管網(wǎng)供水溫度的控制、循環(huán)系統(tǒng)的變頻恒溫差控制，及補(bǔ)水系統(tǒng)的變頻恒壓差控制?？刂葡到y(tǒng)結(jié)

3、構(gòu)以西門(mén)子公司的S7300PLC作為下位機(jī)，實(shí)現(xiàn)對(duì)換熱站各參數(shù)如溫度、壓力等信號(hào)進(jìn)行采集以及各泵、閥裝置的控制；采用威綸觸摸屏MT6070iH作為本地監(jiān)控系統(tǒng)的HMI實(shí)現(xiàn)對(duì)系統(tǒng)各換熱站的獨(dú)立控制；采用力控FceControl組態(tài)軟件作為遠(yuǎn)程監(jiān)控系統(tǒng)上位機(jī)的監(jiān)控軟件，實(shí)現(xiàn)了對(duì)整個(gè)系統(tǒng)的管理和監(jiān)控。整套系統(tǒng)結(jié)果表明：運(yùn)行穩(wěn)定，調(diào)節(jié)精度高，易于控制，可靠性高，節(jié)約能源，減輕了工作人員的工作強(qiáng)度，具有較好的應(yīng)用價(jià)值。關(guān)鍵詞：換熱站監(jiān)控系統(tǒng)PLC

4、組態(tài)軟件研究類型：應(yīng)用研究萬(wàn)方數(shù)據(jù)Subject:TheDesignStudyofTheMonitControlSysteminHeatexchangingStationofNingtiaotaCoalMineSpecialty:PowerSystemAutationName:Zhuxinlong(Signature)Instruct:Fuzhouxing(Signature)Renchangzhong(Signature)Abstra

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8、nsystemssecondarypipewksideaccdingtothechangeofoutdotemperatureactivelyadjustsquality.Accdinglythefirstpipewksidethroughcontrollingtheopeningofelectricvalveadjuststhevolume.Ontheotherhtheheatexchangingstationsystemssecon

9、darypipewksidethroughfrequencyconversionpumptoadjusttheflowindertoadapttotheloadchangeinthesecondarywk.Accdingtothefunctionmonitcontrolsystemrequirementstheplanofthesystemiscontrollingindividuallyineachheatexchangingstat

10、ionthecontrollingschemeofmonitingcentercentralizedmanagement.ThemaintaskisthewatersupplytemperaturecontrolinthesecondarypipewkFrequencydifferencethermostaticcontrolinthecirculatysystemFrequencydifferenceconstantpressurec

11、ontrolintheincreasewatersystem.ControlsystemarchitecturewithSiemensS7300PLCasthenextcrewtorealizeeachparametersintheheatexchangingstationsuchastemperaturepressureothersignalacquisitionaswellascontrolpumpsvalvesdevices.Us