水泵计算选型表p

1、附表6：,采暖水泵计算表2,采暖水泵选型计算书,HWP-4.5,2006年4月25日,1.扬程计算,H=（H1+H2）+H3）*1.1（mH2O）,其中:,H：水泵扬程（mH2O）,H1：管路沿程阻力（mH2O）,H2：管路局部阻力（mH2O）,H3 ：设备阻力（蒸发器+末端）（mH2O）,序号,管路规格,管径(m),长度(m),流速(m/s),比磨阻力（pa/m),沿程阻力(pa),沿程阻力(mH2O),备注一、H1=管长*比摩阻（mH2O）,最不利环路选择：板式换热器-水泵-1层供水管路-末端散热器-回水管路-板式换热器,H1,H1=L*hf,1,DN400,0.4,20,2.00 ,84

2、 ,1680,0.17 ,制冷机房2,DN125,0.125,10,1.80 ,298 ,2980,0.30 ,制冷机房3,DN100,0.1,120,1.80 ,394 ,47280,4.73 ,4,DN80,0.08,80,1.50 ,361 ,28880,2.89 ,8,DN32,0.032,50,0.95 ,428 ,21400,2.14 ,9,DN25,0.025,60,0.70 ,343 ,20580,2.06 ,10,DN20,30,30,0.70 ,471 ,14130,1.41 ,合计,370,13.69 ,H2,H2=,序号,部件,规格,数量,流速V(m/s),局部阻力系数

3、,单位阻力（pa/个),局部阻力(pa),局部阻力(mH2O)5,弯头,DN125,4,1.80 ,0.26,421 ,1684.80 ,0.17 6,弯头,DN100,16,1.80 ,0.26,421 ,6739.20 ,0.67 7,弯头,DN80,6,1.50 ,0.26,293 ,1755.00 ,0.18 11,弯头,DN32,10,0.95 ,0.26,117 ,1173.25 ,0.12 12,弯头,DN25,10,0.70 ,0.26,64 ,637.00 ,0.06 13,弯头,DN20,6,0.70 ,0.26,64 ,382.20 ,0.04 14,三通,DN150,4

4、,2,0.26,520 ,2080.00 ,0.21 18,三通,DN100,2,1.8,1.65,2673 ,5346.00 ,0.53 19,三通,DN80,2,1.5,1.65,1856 ,3712.50 ,0.37 ,三通,DN50,2,1.1,1.65,998 ,1996.50 ,0.20 22,三通,DN32,2,0.95,1.65,745 ,1489.13 ,0.15 24,三通,DN25,16,0.7,1.65,404 ,6468.00 ,0.65 25,三通,DN20,2,0.7,1.65,404 ,808.50 ,0.08 27,大小头,DN125*100,2,1.80 ,

5、0.18,292 ,583.20 ,0.06 28,大小头,DN100*80,2,1.80 ,0.18,292 ,583.20 ,0.06 29,大小头,DN80*50,2,1.50 ,0.18,203 ,405.00 ,0.04 31,大小头,DN50*32,2,1.10 ,0.18,109 ,217.80 ,0.02 33,大小头,DN32*25,2,0.95 ,0.18,81 ,162.45 ,0.02 34,大小头,DN25*20,2,0.70 ,0.18,44 ,88.20 ,0.01 36,蝶阀,DN250,2,2.00 ,0.18 ,360 ,720.00 ,0.07 37,蝶阀

6、,DN200,2,2.00 ,0.18 ,360 ,720.00 ,0.07 38,蝶阀,DN125,2,2.00 ,0.18 ,360 ,720.00 ,0.07 40,闸阀,DN20,1,0.70 ,0.27 ,66 ,66.15 ,0.01 41,球阀,DN20,1,0.70 ,0.27 ,66 ,66.15 ,0.01 42,过滤器,DN125,1,2.00 ,3.00 ,6000 ,6000.00 ,0.60 44,止回阀,DN125,1,2.00 ,2.00 ,4000 ,4000.00 ,0.40 45,软接头,DN250,2,2.00 ,0.18 ,360 ,720.00 ,0

7、.07 46,软接头,DN200,2,2.00 ,0.18 ,360 ,720.00 ,0.07 47,软接头,DN125,2,2.00 ,0.18 ,360 ,720.00 ,0.07 48,软接头,DN40,2,0.95 ,0.18 ,81 ,162.45 ,0.02 合计,5.09 H1：,管路沿程阻力）,H1=,13.69 ,（mH2O）,H2：,管路局部阻力）,H2=,5.09 ,（mH2O）,H3：,设备水阻力（板式换热器水阻力3m+散热器盘管2m）,H3=,5,（mH2O）,H：,系统阻力总合H=（H1+H2）+H3）*1.1,H=,26.16 ,（mH2O）,2.轴功率:,N=

8、流量（m3/h)*扬程（mH2O）/367/效率,Q：,水泵流量（m3/h),系统总水量为120l/s,其中裙楼1-4层424台散热器水量40l/s,塔楼及地下室约600台散热器水量80l/s,Q=,144,（m3/h),H：,水泵扬程（m3/h),H=,26.16 ,（mH2O）,：,效率,=,0.75 ,N：,水泵轴功率（KW),N=,13.69 ,（KW),3.水泵电机功率的选择,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)

9、,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)100,110,26,30,4.3,5.5,0.55,0.7581,90,19,22,3.2,4,0.4,0.5568,75,15.9,18.5,2.3,3,0.27,0.3749,55,12.8,15,1.7,2.2,0.18,0.2540,45,9.1,11,1.1,1.5,32.5,37,6.1,7.5,0.81,1.1,根据上述计算及上表数据，所选水泵电机功率应为18.5KW,4.水泵的选型:,对照ITT水泵样本选择水泵，型号：GISO-125X100-315,综上所述：,名称,设计提供参数,计算参数,所选设备

10、参数,型号：,GISO-125X100-315,水量：L/S,40,40,扬程：mH2O,26.16 ,33,功率：KW,13.69 ,18.5,转速：CMH,1450,效率：,75%,80%,进水口径mm：,DN125,出水口径mm：,DN100,叶轮直径mm：,325,净重：Kg,419,外形尺寸（长*宽*高）mm：,1366,440,750浮动基础尺寸,1700,650,140.00 5.水泵减震器的选择：,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=,24.2 ,Hz,静态压缩量=,32mm,（设计要求或按规范）,=,32.0 ,mm,K：减震器

11、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=,65.47 ,Kg/cm,n：,电机转速,转/分钟,n=,1450,CMH,M：,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,+,Q3,Kg,=,586.6,+,387 ,Kg,=,973.35,Kg,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=,210 ,Kg,型号 ：,ZGT-1-7,个数,6个,查表得：,ZGT-1-7,的竖向刚度为:,K=,64,Kg/cm,压缩量X=,P/K,=