攪拌功率計(jì)算-150818

1、攪拌軸校核表：（漿葉數(shù)為2或3，非階梯軸）說(shuō)明攪拌軸參數(shù)強(qiáng)度較核（316、304）=330 Kgf/cm2剛度較核0=0.7(有底軸承)0=0.35(無(wú)底軸承)攪拌系統(tǒng)參數(shù)(其中軸密度為316密度）轉(zhuǎn)數(shù)較核 (實(shí)際轉(zhuǎn)速應(yīng)小于臨界轉(zhuǎn)速)質(zhì)量(中間變量)規(guī)格功率N(Kw)轉(zhuǎn)速n(rpm)軸徑Dj(mm)()0(0)罐體直徑漿葉數(shù)量(2,3)軸長(zhǎng)軸密度(*103Kg/m3)物料密度(*103Kg/m3)兩軸承間距臨界轉(zhuǎn)速(r/min)縣臂軸有效質(zhì)量(Kg)當(dāng)量質(zhì)量(Kg)12455124.20.321800312007.891.051001383.025.56.232460287.10.681500

2、21500813501232.238.29.6310050119.10.3415002150081350887.726.56.77200202170.215.341200324007.89135090.66.71.60200700.00.001200324007.891350843.082.120.20200700.00.001200324007.891350843.082.120.20200700.00.001200324007.891350843.082.120.20200700.00.001200324007.891350843.082.120.20200700.00.001200324

3、007.891350843.082.120.20200700.00.001200324007.891350843.082.120.20200700.00.001200324007.891350843.082.120.20200700.00.001200324007.891350843.082.120.23000L1.12448205.60.611800312007.891.051001070.119.44.72000L0.452445102.10.321500310007.891.051001571.414.23.51000L0.3244096.90.341200310007.891.0510

4、01593.911.22.7攪拌器質(zhì)量攪拌器有效質(zhì)量當(dāng)量總質(zhì)量(軸+攪拌器)42.151.864.926.032.152.125.431.548.412.815.531.215.117.854.215.117.854.215.117.854.215.117.854.215.117.854.215.117.854.215.117.854.215.117.854.241.751.362.925.130.738.313.716.623.3攪拌軸校核表：（漿葉數(shù)為2或3，非階梯軸）質(zhì)量(中間變量)攪拌功率計(jì)算：圓盤(pán)渦輪攪拌器，標(biāo)準(zhǔn)葉輪適用P=M*n/9550M=9550P/n序號(hào)發(fā)酵罐規(guī)格（標(biāo)準(zhǔn)比例）

5、經(jīng)驗(yàn)功率（以前項(xiàng)目所用功率）（KW)罐體直徑（m)攪拌軸轉(zhuǎn)數(shù)n（rpm)攪拌軸轉(zhuǎn)數(shù)n（r/s)攪拌器數(shù)量電動(dòng)機(jī)計(jì)算功率PM(KW)攪拌軸軸封處的摩擦損耗功率Pm(KW)每層攪拌器的設(shè)計(jì)功率扭矩M(N.m)攪拌器直徑Dj(m)軸封處攪拌軸直徑 d0攪拌機(jī)傳動(dòng)裝置各零部件的傳動(dòng)效率1攪拌功率Ps(kW)功率準(zhǔn)數(shù)Po多層攪拌器總功率準(zhǔn)數(shù)系數(shù)Pon/Po多層攪拌器總功率準(zhǔn)數(shù)Poc功率準(zhǔn)數(shù)校正總系數(shù)k液體密度（kg/m3)液體粘度Pa.s(Nsm-2)攪拌液體雷諾數(shù)Re115L0.40.2100016.6710.1150.0861.10.067250.980.02750.750.90110000.001

6、74074.1130L0.550.2580013.3310.1320.0861.60.083250.980.04450.750.91410000.00192592.6250L0.550.3100016.6710.3060.0862.90.100250.980.21450.750.92510000.001166667250L0.550.380013.3310.1990.0862.40.100250.980.11050.750.92510000.0011333333100L1.50.554006.6720.6210.10714.80.183300.980.50250.78.50.96210000.

7、0012240744200L2.20.570011.6721.8940.19725.80.167500.981.65950.78.50.95610000.0013240745300L2.20.55100.1720.2010.197191.80.183500.980.00050.78.50.96210000.0015601.855300L2.20.5560010.0021.9290.19730.70.183500.981.69350.78.50.96210000.0013361116500L30.83005.0020.6150.15119.60.267400.980.45210.71.70.98

8、616000.034167326500L30.654707.8322.1360.19743.40.217500.981.89750.78.50.97210000.0013677316800L30.83505.8322.4890.19767.90.267500.982.24250.78.50.98610000.00141481571000L40.8560010.00322.4500.320357.30.283750.9821.68150.7120.98910000.00180277871500L7.51.003505.8327.4120.320202.20.333750.986.94350.78

9、.51.00010000.00164814885000L151.42504.17214.5200.320554.70.467750.9813.91050.78.51.02210000.001907407910000L221.8001853.08221.0010.4521084.10.6001000.9820.12950.78.51.03910000.0011110000101500L7.50.804006.6735.1490.320122.90.267750.984.72650.7120.98610000.001474074*當(dāng)計(jì)算攪拌器在標(biāo)準(zhǔn)幾何參數(shù)條件下時(shí)，其功率準(zhǔn)數(shù)校正總系數(shù) k=1；*

10、當(dāng)計(jì)算攪拌器在非標(biāo)準(zhǔn)幾何參數(shù)條件下時(shí)，各種攪拌器功率準(zhǔn)數(shù)按其標(biāo)準(zhǔn)幾何參數(shù)關(guān)系下的功率準(zhǔn)數(shù)，再乘上各自的功率校正總系數(shù) k。攪拌器形式標(biāo)準(zhǔn)幾何參數(shù)符 號(hào) 說(shuō) 明槳式攪拌器Dj/Di=0.66Dj：攪拌器直徑b/Dj=0.1Di：攪拌設(shè)備內(nèi)徑 mZj=2b：攪拌器槳葉寬度Zj：攪拌器槳葉數(shù)量圓盤(pán)渦輪式Dj=Di/3；Di=1000d=0.6Djd： 圓盤(pán)直徑d=0.02Djd：圓盤(pán)厚度Zj=6；=Dj/50： 槳葉厚度b/Dj=0.2；L=Dj/4L： 槳葉長(zhǎng)度Zb=4Zb： 擋板數(shù)量Wb=Di/12Wb：擋板寬度Sb=Di/60Sb：擋板與容器內(nèi)壁間距S/Di=0.66S：攪拌器潛液深度C=Di

11、/3C：攪拌器距容器底距離Hl=DiHl：容器內(nèi)液柱高度碟形和橢圓形容器底形狀直葉開(kāi)啟渦輪式Dj=Di/3；Di=1000Zj=6b/Dj=0.2Zb=4Wb=Di/12Sb=Di/60S/Di=0.66C=Di/3Hl=Di碟形和橢圓形斜葉開(kāi)啟渦輪式推進(jìn)式Dj=Di/3Zj=3Zb=4；Sb=0Wb=Di/10S/Di=0.66C=Di/3Hl=DiPt=Dj；1.4Dj；2DjPt：攪拌器槳葉螺距多層攪拌器非標(biāo)準(zhǔn)幾何參數(shù)時(shí)的校正總系數(shù) k附 加 計(jì) 算 公 式k=k1*k2k1=Hl/Dik22 (用于1個(gè)攪拌器)k22.5 (用于2個(gè)以上攪拌器)k=kT*kB(kV)*ke*kC*kS*

12、kZ*kb*kL*kkT:攪拌容器直徑校正系數(shù)kT=Di0.065kV:渦流校正系數(shù)（無(wú)擋板且Re300時(shí)考慮）kV=(g/n2Dj)(1-logRe)/40式中g(shù)=9.81m/s;n攪拌轉(zhuǎn)速r/skB:擋板校正系數(shù)查圖表ke:攪拌容器底形狀校正系數(shù)平底：ke=1.07;碟形和橢圓形:ke=1.0kC:攪拌器與容器底的距離校正系數(shù)查圖表當(dāng)C/Di=0.33，0.14Dj/Di0.7范圍內(nèi)，功率準(zhǔn)數(shù)無(wú)變化kS:攪拌器潛液深度校正系數(shù)查圖表kZ:攪拌器槳葉數(shù)量校正系數(shù)Zj=4時(shí)kz=0.72；Zj=8時(shí)kz=1.25kb:槳葉寬度校正系數(shù)6葉:kb=(5b/Dj)1.2；4葉:kb=(5b/Dj)

13、1.45kL:槳葉長(zhǎng)度校正系數(shù)當(dāng)L/Dj=0.5時(shí)(槳葉延伸至輪轂處)：kL=1.05k:槳葉厚度和圓盤(pán)厚度校正系數(shù)k=（50/Dj）-0.2(適用于0.0108/Dj0.0341)*當(dāng)任一項(xiàng)為標(biāo)準(zhǔn)時(shí)其相應(yīng)校正系數(shù)為1k=ke*kD*kI*kV*kC*kwke:攪拌容器底形狀校正系數(shù)平底：ke=1.11;碟形和橢圓形:ke=1.0kD：攪拌器直徑與攪拌設(shè)備直徑比（dj/Di）和擋板參數(shù)（ZbWb/Di）校正系數(shù)查圖kI：非標(biāo)準(zhǔn)內(nèi)件校正系數(shù)a、螺旋盤(pán)管 b、角鋼 c、單根鋼管kV：非標(biāo)準(zhǔn)容器校正系數(shù)（標(biāo)準(zhǔn)為立式圓筒形）a、臥式圓筒形 b、方形攪拌容器kc：攪拌器與容器底的距離校正系數(shù)查圖表kw：

14、攪拌器槳葉數(shù)Zj和槳葉寬度(b/Dj)校正系數(shù) 湍 流 區(qū) ； 層流區(qū)（1Re30）在0.01/Dj0.0332范圍內(nèi)，功率準(zhǔn)數(shù)變化300時(shí)考慮）kB:擋板校正系數(shù)查圖表1100L2.20.880.40.9422112200L210.50.9559113300L2.141.1750.550.9619113500L2.151.40.650.97241141000L2.1181.80.850.98951155000L2.213.11.41.022111610000L2.203.961.81.03891171500L3.7530.80.985611槳葉寬度b=Dj/5槳葉數(shù)量Zj=6槳葉長(zhǎng)度L=Dj

15、/4槳葉厚度=Dj/50擋板數(shù)量Zb=453.3333333366.666666675.333333333ke:攪拌容器底形狀校正系數(shù)kc:攪拌器與容器底的距離校正系數(shù)查圖表ks:攪拌器潛液深度校正系數(shù)查圖表kz:攪拌器槳葉數(shù)量校正系數(shù)kb:槳葉寬度校正系數(shù)kL:槳葉長(zhǎng)度校正系數(shù)111111111111111111111111111111111111111111111111*當(dāng)某一項(xiàng)為標(biāo)準(zhǔn)時(shí)其相應(yīng)校正系數(shù)為1擋板寬度Wb=Di/12擋板與容器內(nèi)壁間距Sb=Di/60攪拌器潛液深度S=2/3Di攪拌器距容器底距離C=Di/3容器內(nèi)液柱高度Hl66.66666667k:槳葉厚度和圓盤(pán)厚度校正系數(shù)k

16、10.9421800410.95594531810.96188593610.97238750210.9894918711.02211161211.03894537210.98560035*當(dāng)某一項(xiàng)為標(biāo)準(zhǔn)時(shí)其相應(yīng)校正系數(shù)為1推進(jìn)式攪拌器和容器的標(biāo)準(zhǔn)參數(shù)標(biāo)準(zhǔn)推進(jìn)式攪拌器和容器攪拌功率準(zhǔn)數(shù)：1、有擋板,雷諾數(shù)Re104：螺距=Dj P0=0.4；150Re104時(shí),0.4PO6000：螺距=1.4Dj P0=0.6；200Re6000時(shí),0.6PO500：螺距=2Dj P0=1；4、無(wú)擋板,雷諾數(shù)Re4000：按P0=0.3計(jì)算（3*104104：螺距=Dj P0=0.4；150Re104時(shí),0.4PO6000：