*(2016ZX05043-005-003)CoalMineMachineryVol.39No.06Jun.20183906201806doi:10.13436/j.mkjx.2018060610,、,,,。,,,。,,。,,。,,。,,,,。2。、、,。(EFD),800mm准73mm,,。*1,2(1.,400039;2.,400039):,,(EFD),。:N、、P、d、L5准73mm。、d=6mm、P=735mm、N=3、L=40mm准73mm。:;;;:TD421.25:A:1003-0794(2018)06-0166-03NumericalSimulationandOptimizationonStructuralParametersofSpiralRhizomaSparganiiDrillPipeZhaoZhiqiang1,2(1.ChongqingResearchInstitute,ChinaCoalTechnologyandEngineeringGroup,Chongqing400039,China;2.StateKeyLaboratoryoftheGasDisasterDetecting,PreventingandEmergencyControlling,Chongqing400039,China)Abstract:ThestructuralparametersofaliengroovesinspiraldrillpipehavebeennumericallysimulatedandoptimizedbymeansoforthogonalexperimentaldesignandEngineeringFluidDynamics(EFD)inordertoacquirethebestboreholequalitywhiledrillinginthecoalminewithnew-stylespiraldrillpipe,whichcouldobtaintheoptimaldischargestructureofaliengrooves.Theoreticalanalysishasindicatedthatthenumber,thedepth,thewidth,andthescrewpitchofaliengrooves,whicharetermedasN,d,L,Prespectively,alongwiththestructureofaliengrooveshaveanobviousinfluenceonthedischargeperformanceofthe准73mmspiralaliendrillpipe.Inconclusion,theoptimaltheoreticalandstructuralparameterconfigurationof准73mmspiralaliendrillpipecanbeobtainedwithflat-bottomedgrooveswhenN=3、P=735mm、L=40mm、d=6mm.Keywords:spiralrhizomasparganiidrillpipe;orthogonalexperimentaldesign;engineeringfluiddynamics;numericalsimulation1663906Vol.39No.06———11,N、d、L、、P准73mm5,。5(EFD),准73mm。1准73mm1.()2EFDEFD、、,、、、。CADSolidworksSolidworksFlowSimulation,-,SolidworksSolidworksFlowSimulation。准73mm准96mm,准73mm()准96mm()(2)。,,,5×104~8×104;:5,7m3/min;。2EFD3(1),2。,。EFD,准73mm5,3,35(243),EFD,,,。,,、、,,。5EFD,30,87%,,、、。准73mmEFD,s,准73mm15。s15,;s=0,15,,、。s,15,,,。,、,L8(27)52,,L8(27)R5,,5。L8(27),53,15,L18(37)3。1L18(37)2L18(37),5、7,L18(37)。L18(37)18,s,1d/mm567N/123P/mm245490735L/mm304050123PG准73mmNGG-G800dL167,R,。2准73mmL18(37)(2)L18(37)①准73mm5,s:、d、P、N、L。257R,L18(37),L18(37)。②25ki,准73mm、d=6mm、P=735mm、N=3、L=40mm,s=1.2169,L18(37)s,L18(37)。4(1),,、;(2)EFD:N、、P、d、L5准73mm;(3)36mm,40mm,735mm准73mm;(4)20179-225N,准73mm68,4721m,103.3m,、,。:[1],.[J].,2016,44(1):47-54.[2].63ZGS73[J].,2017,38(10):100-102.[3].[J].,2016,47(3):94-97.[4],,,.[J].(),2011,42(1):220-226.[5],.[J].,2015,46(6):107-110.[6],,,.[J].(),2013,44(10):4264-4272.:(1985-),,,2013,,,:zzqhn@qq.com.::2018-04-283906Vol.39No.06———123456789101112131415161718K1K2K3k1k2k3R111122233311122233324.03411.45720.5134.00571.90963.41882.0961112d12312312312312312317.71420.35313.6052.95233.39222.26751.1247223N12312323131223131218.69116.34820.9663.11522.72473.49430.7696434P12323112331231223118.68114.62120.4233.11352.43683.40380.9670335112323131223112331220.74520.12918.1323.45753.35493.02200.4355716L12331223123131212315.58720.07017.2202.59783.34492.86990.7471527212331231212323123120.12718.85217.0263.35443.14192.83760.5168614.76123.75522.42681.56241.46212.68923.46854.68924.89673.75683.34562.46711.50642.46911.76822.65844.63173.68911.2169s168