24种搅拌器的功率曲线

38320103　　　　　　　　　　　　　　　　CHEMICALENGINEERING(CHINA)　　　　　　　　　　　　Vol.38No.3Mar.2010:(1938—),,,,:[phone],E-mail:[e-mail]。24陈志希1,谢明辉2,周国忠2,虞培清2,王抚华1(1.,　710054;2.,　325028):、、、0.4—0.6,1∶3,,。、、、、,24。,;,,NP-Re。:;;;:TQ027.2　　　:A　　　:1005-9954(2010)03-0038-06Powercurvesof24typesofmixersCHENZhi-xi1,XIEMing-hui2,ZHOUGuo-zhong2,YUPei-qing2,WANGFu-hua1(1.NationalTechnologyCenterofChemicalEngineeringDesign,Xi′an710054,ShaanxiProvince,China;2.ZhejiangGreatWallReducerCo.,Ltd.,Wenzhou325028,ZhejiangProvince,China)Abstract:Themixingpowercurvesofdifferenttypesofmixerswithbaffleswereplotted,includingimpellertype,turbinetype,foldingimpellertype,impulsetypewithawheel/tankdiameterratioof0.4-0.6whichishigherthanthatwith1∶3ofconventionalones,anddual-layerimpellertypes.Thepowercurvesofmixerswithdifferentimpellers,includingimpellerwithholesonblade,tubularimpeller,arcimpeller,andfront-backsurfacehalf-pipeimpeller,wereplotted.Thetotalis24curves.Theconstructiontypeandvariousparameterratiosofplottingequipmentwereintroducedforreferenceinmixerdesign.Thesignificanceofhigherwheel/tankdiameterratioanddual-layerimpellerinpracticewasexplained.Thepowernumbersofmixerswithdifferentconstructionwerecompared.SomeinformationandadviceswerepresentedfortheapplicationofNP-Recurve.Keywords:mixer;powercalculation;powercurve;plotting　　、、。。,,,。,,,,,,,,。。,、、1∶3,,,。1∶3,1∶3,,,。,,0.550.3325%[1]。-45°,0.38,0.6,,[2]。,,1∶3。。,。,,,0.04Pa·s,63%[1]。0.6%,。0.2Pa·s,50%,12%[1],[3]2,,2,2,。、、,,,,。1　1.1　、、,。1.2　580mm。1.3　4,58mm,8mm。1.4　2,5,10,20Nm。1.5　、1。1　Table1　NameandstructureparametersratioofmixersD/Tb/DC/Th/TL/DH/TnaS/Dθαa1/Ra2/Rε10.40.1640.3512220.60.1090.3512330.40.1640.35120.470.817.5%240.60.1090.35120.360.878.7%450.40.1640.351245°4,b60.60.1090.351245°3,b70.40.1640.3512280.60.1090.3512390.40.1380.35140.50.86.1%3100.60.0920.35140.410.868.1%3110.40.1380.351445°2,b120.60.0920.351445°3,b130.40.1080.350.25162140.60.0720.350.2516415(Ⅰ)0.40.1080.350.2516416(Ⅱ)0.40.1080.350.2516417(Ⅰ)0.60.0720.350.2516218(Ⅱ)0.60.0720.350.25162190.50.351313200.40.1030.30.61.2290°0.40.838.5%4210.60.0690.30.61.2290°0.370.899.4%3220.50.0830.30.61.2445°4,b230.40.1160.35122240.60.0780.35124·39·陈志希等　24　　1,T,mm;D,mm;b,mm;C,mm;h2,mm;L,mm;H(),mm;na1,;S,mm;θ,(°);α2,(°);a1,mm;a2,mm;R,mm;ε,ε=F/(b·R·na),%;F1,mm2。1.6　,1(a)。,,1(b)。,1(c)。,b,,,2,D1(d)。,,1,1(e),。。15,17。16,18。b。1(f)。22,2,、,。2、,20,21、90°。1/4,。1/4,,,1(g)。1　Fig.1　Impellershape2　1,3,7,11,13,17,18,232。2,6,8,9,10,12,19,213。4,5,14,15,16,20,22,244。2—4Re,NP。2　(1,3,7,11,13,17,18,23)Fig.2　Powernumbercurves(MixerNo.1,3,7,11,13,17,18,23)·40·　2010383　　(1)24,、,,。(2)24,2。·41·陈志希等　242　Re=2Re=3×105NPTable2　ComparisonofNPofdifferentmixersatRe=2andRe=3×105NPRe=2Re=3×105NP/%Re=2Re=3×10511317.181.6917.171.260.0583422412.711.013.130.773.23031517.181.6914.370.632016842612.711.010.950.411614451717.181.6920.540.4207662812.711.015.650.28237271315(Ⅰ)27.282.4428.311.813.82681417(Ⅰ)23.581.4924.261.012.93291316(Ⅱ)27.282.4428.22.033.417101418(Ⅱ)23.581.4923.191.441.73.411320、、17.171.2626.691.33555.612421、、13.130.7723.040.81755.21352314.370.6317.120.5519131462410.950.4112.770.311724　　2NP:(1)13241,2,3,4,,,Re=2NP,0.058%3.2%;Re=3×105,NP34%30%。(2)15261,2,5,6,,。Re=220%16%。Re=3×105,168%144%。(3)1728,2ReNP,Re=2,20%23%。NP,Re=3×105,76%72%。(4)1315,16,1417,18,,Re=2,3,,NP,,3.8%·42·　20103832.9%,3.4%1.7%。,Re=3×105,NP26%32%,NP17%3.4%。(5)34,HT,b/D0.1640.109。20,21,1.2,b/D0.1030.069,3,4,23,4。320421、,。2,Re=2,21NP,55%75%。Re=3×105,,NP,Re=2,5.6%5.2%。(6)5,6,23,24,,4,523,624,5,6,23,24,2Re=2,NP,19%17%。Re=3×105,NP,13%24%。(7),,Re,NP-Re。NP,。3　(1),,、。(2),1()(),2—4NP,,NP。[4]。(3)NP,,,。4　(1)24,,。(2)NPRe=2,Re=3×105,,32%(,)。(3)NP,Re=2,18%,Re=3×105156%。(4),,Re=2,NP21.5%。Re=3×105NP74%。NP,。(5),、3,,Re=2,NP,NP。Re=3×105,NP29%,NP3.4%—17%。(6)21NP,Re=265%,Re=3×105,5.4%。(7),Re=2NP18%。Re=3×105NP,13%—24%。:[1]　.[J].,1994,22(6):46-54.[2]　.VAE[J].,2006,33(3):185-186.[3]　,,,.8[J].,2005,32(5):259-262.[4]　.[M]∥().:,2002:3-25.·43·陈志希等　24