离心式压缩机功率公式

1、离离心心压压缩缩机机功功率率公公式式（估估算算) )参数数值单位进气压力P15.5Mpa（a）排气压力P27.1Mpa（a）进气温度70.8进气温度T1343.8K工况体积流量qr21.75kg/s绝热指数k1.4多变压缩指数m1.615384615总压缩比总=P2/P11.290909091压缩级数Y1压缩比=总(1/n)1.290909091排气温度T2=T1（(m-1）/m）378.9237597K排气温度105.9237597气体常数R29.8kg.m/kg.k进气条件下压缩系数Z11排气条件下压缩系数Z21输出功率N出586.06KW机械损失与效率m0.97内效率（多变效率）po0.

2、75压缩机效率=m*po0.7275内功率Ni=N出*po781.4131987KW轴功率N=Ni/805.58KW安全系数K1.1电机功率=N*K886.1386789KW电机功率1120KW若干级功率总和（有了数据表后核算）10946红色为输入数值，绿色为输出数值二级（3000rpm）0.75/1.5/1.75/2.2/3.0/4.0/5.5/7.5/11/15/18.5/22/30/37/45/55/75/90/110/132/160/185/200/220/250/315/355/400/450/500/560/630/710/800/900/1000/1120/1250/1400/1

3、600/1800/2000/2240/2500/2800/3150四级（1500rpm）0.55/0.75/1.5/1.75/2.2/3.0/4.0/5.5/7.5/11/15/18.5/22/30/37/45/55/75/90/110/132/160185/200/250/315/355/400/450/500/560/630/710/800/900/1000/1120/1250/1400/1600/1800/2000/2240/2500/2800六级（1000rpm）0.75/1.5/1.75/2.2/3.0/4.0/5.5/7.5/11/15/18.5/22/30/37/45/55/75

4、/90/110/132/160/185/200/220/250/315/355/400/450/500/560/630/710/800/900/1000/1120/1250/1400/1600/1800/2000八级（750rpm）2.2/3.0/4.0/5.5/7.5/11/15/18.5/22/30/37/45/55/75/90/110/132/160/185/200/220/250/315/355/400/450/500/560/630/710/800/900/1000/1120/1250/1400/1600十级（600rpm）45/55/75/90/110/132/160/200/22

5、0/250/315/355/400/450/500/560/630/710/800/900/1000/1120/1250/1400十二级（495rpm）185/200/220/250/315/355/400/450/500/560/630/710/800/900/1000/1120/1250/1400备注绝压绝压摄氏度开尔文=摄氏度+273绝热指数K=CP/CV(CP定压指数，CV定容系数），查表（H2/1.41;N2/1.402；O2/1.397;空气/1.4;N2/1.313;C2H2/1.235;C2H4/1.249；CH4/1.314；焦炉煤气/1.36;氦气/1.66；氟利昂/1.1

6、)多变效率po=（m/（m-1)）/（k/（k-1)；则m=k*po/（k*po-k+1）几种气体在总压比2.5下所需的级数：氟利昂1级；空气2级；焦炉煤气：5级；氦气：17级；氢气32级。与气体常数有关，分子量越小，需要的级数越多。这是往复压缩机的温度公式，不知道是否适用于离心压缩机。排气温度和压缩比复核压缩级数是否正确绝热m=k。排气温度：氢气135；空气160180；乙炔气100;石油气100；氮氢气160；CO2170空气：32：29.88；32：29.8；5：29.3.N出=Y*9.807*10(-3)*qr*（m/（m-1）*R*（(Z1+Z2)/2）*T1*(（(m-1）/m）-

7、1)齿轮箱传动：Ni=2000KW，m=0.970.98；Ni=10002000KW，m=0.960.97；Ni1000KW，m=0.96；目前离心式压缩机的多变效率为0.70.84左右。国产多变热效率74%，叶轮式三元流的就可以达到80%以上。国产一般取0.75，进口机器取0.78.机器越大，效率越高。用于转化为压缩机机械能和内能的轴功率N=9.807*10(-3)*qr*（m/（m-1）*R(Z1+Z2)/2*T1*(（(m-1）/m）-1)/1.11.25圆整到电机功率规格上、离离心心压压缩缩机机功功率率公公式式（估估算算) )10946红色为输入数值，绿色为输出数值0.75/1.5/1

8、.75/2.2/3.0/4.0/5.5/7.5/11/15/18.5/22/30/37/45/55/75/90/110/132/160/185/200/220/250/315/355/400/450/500/560/630/710/800/900/1000/1120/1250/1400/1600/1800/2000/2240/2500/2800/31500.55/0.75/1.5/1.75/2.2/3.0/4.0/5.5/7.5/11/15/18.5/22/30/37/45/55/75/90/110/132/160185/200/250/315/355/400/450/500/560/630/

9、710/800/900/1000/1120/1250/1400/1600/1800/2000/2240/2500/28000.75/1.5/1.75/2.2/3.0/4.0/5.5/7.5/11/15/18.5/22/30/37/45/55/75/90/110/132/160/185/200/220/250/315/355/400/450/500/560/630/710/800/900/1000/1120/1250/1400/1600/1800/20002.2/3.0/4.0/5.5/7.5/11/15/18.5/22/30/37/45/55/75/90/110/132/160/185/200

10、/220/250/315/355/400/450/500/560/630/710/800/900/1000/1120/1250/1400/160045/55/75/90/110/132/160/200/220/250/315/355/400/450/500/560/630/710/800/900/1000/1120/1250/1400185/200/220/250/315/355/400/450/500/560/630/710/800/900/1000/1120/1250/1400质质量量流流量量换换算算标标况况体体积积流流量量参数数值单位质量流量qm12060kg/h分子量n29标况体积流量

11、qv0=Qm/n*22.49315.310345Nm3/h红色为输入数值，绿色为输出数值标标况况体体积积流流量量换换算算质质量量流流量量参数数值单位标况体积流量qv060500Nm3/h分子量n29质量流量qm=qv/22.4*n78325.89286kg/h质量流量qr21.75719246kg/s红色为输入数值，绿色为输出数值备注备注质质量量流流量量换换算算标标况况体体积积流流量量红色为输入数值，绿色为输出数值标标况况体体积积流流量量换换算算质质量量流流量量红色为输入数值，绿色为输出数值标标况况体体积积流流量量换换算算工工况况体体积积流流量量参数数值单位标准大气压P00.101325Mpa

12、（a）标况温度T0273K标况体积流量qV010000Nm3/h工况压力P10.85Mpa（a）工况温度T40工况温度T1313K工况体积流量qV1=P0*qV0*T1/(T0*P1)1366.719457m3/h工况体积流量qv22.77865762m3/min红色为输入数值，绿色为输出数值工工况况体体积积流流量量换换算算标标况况体体积积流流量量参数数值单位工况压力P10.3Mpa（a）工况温度T20.15工况温度T1293.15K工况体积流量V1745m3/h标况温度T0273K标准大气压P00.101325Mpa（a）标况体积流量V0=P1*V1*T0/(T1*P0)2054.15714

13、1Nm3/h红色为输入数值，绿色为输出数值备注绝压开氏度绝压开氏度用于往复压缩机功率计算公式备注绝压开氏度开氏度绝压标标况况体体积积流流量量换换算算工工况况体体积积流流量量红色为输入数值，绿色为输出数值工工况况体体积积流流量量换换算算标标况况体体积积流流量量红色为输入数值，绿色为输出数值空空气气的的压压缩缩系系数数(压力/Mpa）/(温度/K)901001201401601802002500.10.97640.97970.9880.99270.99510.99670.99780.99920.50.88720.93730.96140.97480.98320.98860.995710.8660.9

14、2050.94890.9660.97670.991120.6730.82970.89540.93140.95390.982240.58560.78020.86250.910.967160.33130.66030.79770.87010.954980.34980.33710.37370.56960.74320.83740.9463100.45810.43370.41320.4340.54890.70840.81420.9411150.67790.63860.59640.59090.6340.7180.80610.945200.89290.83770.7721.76990.75640.79860.8540.97133003504004505000.999911.00021.00031.00030.99871.00021.00121.00161.0020.99741.00041.00251.0