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1、第25卷第12期中國礦業(yè)Vo1.25。No.122016年12月CHINAMININGMAGAZINEDec.2O16高溫礦井工作面熱害控制模擬研究及系統(tǒng)優(yōu)化朱國龍,周鵬,宮偉力,孟憲宇(1.深部巖土力學與地下工程國家重點實驗室,北京100083;2.中國礦業(yè)大學(北京)力學與建筑工程學院,北京100083)摘要:針對典型煤礦的深部高溫熱害威脅,在徐卅l礦區(qū)建立的“以礦井涌水為冷源的深井降溫系統(tǒng)”取得了良好效果,但也仍存在優(yōu)化潛力。本文以徐州張雙樓礦井熱害控制為例,應用流固傳熱及邊界層理論數(shù)值模擬的方法,建立工作面的巖石一空氣耦合傳熱模型,對降溫系統(tǒng)干預下的深井工作面溫度場進行了研究。利用系
2、統(tǒng)運行實測結果對模型進行驗證,證明了模型的準確性和適用性。通過對降溫系統(tǒng)不同工況進行模擬,為現(xiàn)場降溫系統(tǒng)提出了優(yōu)化方案。關鍵詞:深井熱害;流固傳熱;低Re數(shù)k一£模型;邊界層;HEMS系統(tǒng)優(yōu)化中圖分類號:TD353文獻標識碼:A文章編號:1004—4051(2016)12—0159~06NumericalsimulationresearchondeepmineworkfaceheathazardscontrolandcoolingsystemoptimizingZHUGuolong,ZHOUPeng,GONGWeili,MENGXianyu’(1.StateKeyLaboratoryofGe
3、omechanicsandDeepUndergroundEngineering,ChinaUniversityofMining&Technology(Beijing),Beijing100083,China,2.InstituteofMechanicsandEngineering,ChinaUniversityofMiningandTechnology(Beijing),Beijing100083,China)Abstract:HeathazardsinChina’stypicalcoalminesbecomemoreandmoreseriouswiththeincreaseofmining
4、depth.Recently,thehigh—temperatureexchangemachinarysystem(HEMS)byusingcoalmineinflowisemployedinXuzhouMiningGroupdeepcoa1mines.Fieldexperimentsshowthatthiscoolingsystemachievesobviouseffectinheathazardcontrol,buttheresearchesonmechanismandtheoptimizingofHEMSsystemarestillneeded.Basedonthefieldexper
5、imentinZhangshuang1oucoalmine,thenumericalsimulationareperformedwiththerock—aircoupledheattransmissionmode1.Thesolidheattransferandflowboundarylayertheoryareemployedandthenthemodelisexaminedbythefieldmonitoreddata,whichshowsthemodelisreliableinworkingfacecoolingsimulation.Withthesimulatingresultsfo
6、rdifferentHEMSworkingconditions,thetemperaturefieldandvelocityfieldatworkingfaceareobtained,andthesystemoptimizingparametersarealsoprovidedwith17centigradeand3m/soutletvelocity.Themodelandsimulatingtestmethodsmayprovidebasisandideasforsimilarventilationandcoolingsystemsoptimization.Keywords:deephea
7、thazard;fluid—solidheattransfer;lowRek一£model;boundarylayer;high-temperateexchangemachinaryststem(HEMS)optimizing隨著煤礦開采深度的進一步增加,尤其是位于的環(huán)境溫度達到32℃,傳統(tǒng)通風回風溫度高達我國東部地區(qū)的礦井在深部開采過程中普遍受到36℃,均超出了我國相關規(guī)定中的溫度上限值]。高溫熱害的的威脅