1、设备阻力(冷凝器)H4:冷却塔中水的提升高度(冷却塔水盘到喷水口的高差4mH2O)H5:冷却塔喷嘴的喷雾压力(5mH2O)1.1:安全系数序号管路规格管径(m)长度(m)水量(m3/h)流速(m/s)比磨阻力(pa/m)沿程阻力(pa)沿程阻力(mH2O)H1H1=L*hf1DN6000.60911015661.494044000.442DN2500.2576399.62.1420012000.122DN2000.26399.63.5470042000.423DN2000.262001.7719611760.12合计1.10H2H2=序号部件规格数量局部阻力系数流速(m/s)单位阻力(pa/m
2、)局部阻力(pa)局部阻力(mH2O)1弯头DN600160.261.492904643.370.462弯头DN25020.262.145951190.700.123弯头DN20020.263.5416293258.220.334三通600*25020.682.1415573114.130.315三通600*20041.23.54751930075.843.016蝶阀DN25020.182.14412824.330.087蝶阀DN20040.183.5411284511.380.458过滤器DN250122.1445804579.600.469止回阀DN250122.1445804579.60
3、0.4610软接头DN25020.182.14412824.330.0811软接头DN20040.182.144121648.660.1612大小头250*20020.552.1412592518.780.2513大小头250*15020.552.1412592518.780.25合计6.43H1:管路沿程阻力)H1=1.10(mH2O)H2:管路局部阻力)H2=6.43(mH2O)H3:设备水阻力(冷凝器水阻力6m)H3=6(mH2O)H4:冷却塔中水的提升高度(冷却塔水盘到喷水口的高差4mH2O)H3=4(mH2O)H5:冷却塔喷嘴的喷雾压力(5mH2O)H3=5(mH2O)H:系统阻力总
4、合H=(H1+H2)+H3+H4+H5)*1.1H=24.78(mH2O)2.轴轴功功率率 N=N=流流量量(m3/h)*m3/h)*扬扬程程(mH2OmH2O)/367/367/效效率率Q:水泵流量(m3/h)Q=399.6(m3/h)H:水泵扬程(m3/h)H=24.78(mH2O):效率=0.75N:水泵轴功率(KW)N=35.97(KW)3.水水泵泵电电机机功功率率的的选选择择在选取水泵电机功率时根据ISO5199加上安全余量按ISO5199的安全余量(节选)所需泵轴功率至(KW)选用电机输出功率(KW)所需泵轴功率至(KW)选用电机输出功率(KW)所需泵轴功率至(KW)选用电机输出功
5、率(KW)所需泵轴功率至(KW)选用电机输出功率(KW)10011026304.35.50.550.75819019223.240.40.55687515.918.52.330.270.37495512.8151.72.20.180.2540459.1111.11.532.5376.17.50.811.1根据上述计算及上表数据,所选水泵电机功率应为45KW4.水水泵泵的的选选型型:对照ITT水泵样本选择水泵,型号:GISO-200X150-315综上所述:名称设计提供参数计算参数所选设备参数型号:GISO-200X150-315水量:L/S11111176.1扬程:mH2O4024.7830功
6、率:KW35.9745转速:CMH14501450效率:75%75%81%进水口径mm:DN200出水口径mm:DN150叶轮直径mm:325净重:Kg708外形尺寸(长*宽*高)mm:1703600880浮动基础尺寸(混凝土密度2.5T/m3)2160800140.005.水水泵泵减减震震器器的的选选择择:f:震动源频率(设备震动频率f=n/60,n为转速,当设备有几个转速时取小值)f=24.2Hz静态压缩量=32mm(设计要求或按规范)=32.0mmK:减震器的弹簧常数,K=P/(KG/m),其中P为单个弹簧的荷载:P=3*水泵自重M/弹簧个数K=110.63Kg/cmn:电机转速转/分钟
7、n=1450CMHM:震源的重量Kg(减震器承受的荷载)M=水泵重量Q2+浮动基础重量Q3+动载1.5R0(静载+干扰力)=1.4Q2+Q3Kg=991.2+604.8Kg=1596Kg对查样本减震器选择广州华侨减震器厂的ZGT系列产品选择广州华侨减震器厂的ZGT系列产品6个/台单个承重:P=354Kg型号:ZGT-1-12个数6个查表得:ZGT-1-12的竖向刚度为:K=117 Kg/cm压缩量X=P/K=30mm(符合设计要求)额定荷载:285-570Kg,最佳荷重428Kg系统固频率f0=9800/(2*3.14*X)(按厂家提供计算公式)=2.9Hz频率比:=f/f0=8.4传震率T:
8、T=1/(f/f0)2-1=0.01隔震率=(1-T)*100%=99%(符合设计要求)附表3:冷冷却却水水泵泵计计算算表表2冷却水泵选型计算书CWP-5.61.扬扬程程计计算算H=(H1+H2)+H3+H4+H5)*1.1H1:安全系数序号管路规格 管径(m)长度(m)水量(m3/h)流速(m/s)比磨阻力(pa/m)沿程阻力(pa)沿程阻力(mH2O)H1H1=L*hf1DN6000.680122.40.121800.012DN2000.212122.41.08617320.073DN1000.1260122.41.5039410244010.244DN400.04500.95509254
9、502.55合计12.87H2H2=序号部件规格数量局部阻力系数流速(m/s)单位阻力(pa/m)局部阻力(pa)局部阻力(mH2O)1弯头DN600100.260.12218.720.002弯头DN20060.261.804212527.200.253弯头DN100160.261.502934680.000.474弯头DN40100.261.101571573.000.165三通DN20021.651.8026735346.000.536三通DN100161.651.50185629700.002.977三通DN4041.650.957452978.250.308蝶阀DN20020.180.
10、9581162.450.029蝶阀DN10040.181.50203810.000.0810闸阀DN4040.180.9581324.900.0311过滤器DN100121.5022502250.000.2312止回阀DN100121.5022502250.000.2313软接头DN20040.181.802921166.400.1214软接头DN10020.181.50203405.000.0415软接头DN4040.180.9581324.900.0316大小头100*4020.551.506191237.500.12合计5.58H1:管路沿程阻力)H1=12.87(mH2O)H2:管路局部阻力)H2=5.58(mH2O)H3:系统阻力总合H=(H1+H2)+H3+H4+H5)*1.1H=36.79(mH2O)2.轴轴功功率率:N
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