重点用能设备节能监测报告
重点用能设备节能监测报告
重点用能设备节能监测报告
重点用能设备节能监测报告
1.计算比转速
n s =
4
/365.3H
Q n
=284.5 2.水力效率ηh
ηh =1+0.0835lg 3
n Q
=1+0.0835
=0.889 取ηh =0.87 3.容积效率ηv (只考虑叶轮前密封环的泄漏)
ηv =
3
/268.011
-+s
n =2/3110.68284.5-+⨯=0.985 取ηv =0.98 4.机械效率ηm (只考虑圆盘磨擦损失的机械效率)
ηm =1-0.07
6/7)100
(1s n
=1-0.07×
7/61
284.5()100
=0.979 取η
m =0.97
5.总效率η
η=ηh ηv ηm =0.87×0.98×0.97=0.827 6.国标效率η
GB
η
GB =81.5%
7.轴功率 P=25.5KW
1.计算比转速
n s =
4
/365.3H
Q n
=298.5 2.水力效率ηh ηh =1+0.0835lg 3
n Q
=1+0.0835
取ηh =0.875 3.容积效率ηv (只考虑叶轮前密封环的泄漏) ηv =
3
/268.011
-+s
n =2/3110.68298.5-+⨯=0.985 取ηv =0.98 4.机械效率ηm (只考虑圆盘磨擦损失的机械效率) ηm =1-0.07
6/7)100
(1s n
=1-0.07×
7/61
298.5()100
=0.98 取η
m =0.96
5.总效率η
η=ηh ηv ηm =0.875×0.98×0.96=0.823 6.国标效率ηGB
η
GB =81.2%
7.轴功率 P=28.2KW
1.计算比转速
n s =
4
/365.3H
Q n
=150.9 2.水力效率ηh
ηh =1+0.0835lg 3
n Q
=1+0.0835
取ηh =0.89 3.容积效率ηv (只考虑叶轮前密封环的泄漏)
ηv =
3
/268.011
-+s
n =2/3110.68150.9-+⨯=0.977 取ηv =0.977 4.机械效率ηm (只考虑圆盘磨擦损失的机械效率)
ηm =1-0.07
6/7)100
(1s n
=1-0.07×
7/61
150.9()100
=0.957 取η
m =0.975
5.总效率η
η=ηh ηv ηm =0.89×0.977×0.975=0.847 6.国标效率η
GB
η
GB =84.1%
7.轴功率 P=63.9KW
选用电机功率为75KW
1.计算比转速
n s =
4
/365.3H
Q n
=87.7 2.水力效率ηh
ηh =1+0.0835lg 3
n Q
=1+0.0835
取ηh =0.885 3.容积效率ηv (只考虑叶轮前密封环的泄漏)
ηv =
3
/268.011
-+s
n =2/3110.6887.7-+⨯=0.967 取ηv =0.97 4.机械效率ηm (只考虑圆盘磨擦损失的机械效率)
ηm =1-0.07
6/7)100
(1s n
=1-0.07×
7/61
87.7()100
=0.918 取ηm =0.93
5.总效率η
η=ηh ηv ηm =0.885×0.97×0.93=0.798 6.国标效率η
GB
η
GB =79.2%
7.轴功率 P=34.4KW
1.计算比转速
n s =
4
/365.3H
Q n
=129.6 2.水力效率ηh ηh =1+0.0835lg 3
n Q
=1+0.0835
取ηh =0.85 3.容积效率ηv (只考虑叶轮前密封环的泄漏) ηv =
3
/268.011
-+s
n =2/3110.68129.6-+⨯=0.974 取ηv =0.97 4.机械效率ηm (只考虑圆盘磨擦损失的机械效率) ηm =1-0.07
6/7)100
(1s n
=1-0.07×
7/61
129.6()100
=0.948 取η
m =0.94
5.总效率η
η=ηh ηv ηm =0.85×0.97×0.94=0.775 6.国标效率ηGB
η
GB =77%
7.轴功率 P=7.9KW
选用电机功率为11KW
DFW300-250-4
泵参数：Q=720m 3/h H=20m n=1450r/min 1.计算比转速
n s =
4
/365.3H
Q n
=3/43.65145020⨯ =250.3 2.水力效率ηh ηh =1+0.0835lg 3
n Q
=1+0.0835
取ηh =0.86 3.容积效率ηv (只考虑叶轮前密封环的泄漏) ηv =
3
/268.011
-+s
n =2/3110.68250.3-+⨯=0.983 取ηv =0.96 4.机械效率ηm (只考虑圆盘磨擦损失的机械效率) ηm =1-0.07
6/7)100
(1s n
=1-0.07×
7/61
250.3()100
=0.976 取η
m =0.95
5.总效率η
η=ηh ηv ηm =0.86×0.96×0.95=0.784 6.机组效率η
η=77.86% 7.轴功率 P=50.4KW
DFW300-315B-4
泵参数：Q=563m 3/h H=24m n=1450r/min 1.计算比转速
n s =
4
/365.3H
Q n
=193 2.水力效率ηh ηh =1+0.0835lg 3
n Q
=1+0.0835
取ηh =0.82 3.容积效率ηv (只考虑叶轮前密封环的泄漏) ηv =
3
/268.011
-+s
n =2/3110.68193-+⨯=0.98 取ηv =0.95 4.机械效率ηm (只考虑圆盘磨擦损失的机械效率) ηm =1-0.07
6/7)100
(1s n
=1-0.07×
7/61
193()100
=0.967 取ηm =0.95
5.总效率η
η=ηh ηv ηm =0.82×0.95×0.95=0.74 6.机组效率η
η=73.09% 7.轴功率 P=50.4KW。