介质为水
一回（二回）流量m3/h
求得管径DN
3
32.56255518
26.5872149723.0252035820.59436816
70%8
一回（二回）流量m3/h
求得管径DN
368.5714286
360.926427
294.6951936255.213524228.2699154
介质为蒸汽一供流量m3/h
求得管径DNDN
253240506580100125150200250300
DN
253240506580100125150200250300
DN标准流速
321401401.5501.56528021002.51252.51502.52002.52502.5300
2.5
标准流速
321401501.5651.580210021252.51502.52002.52502.52502.5300
2.5
标准流速
2532324040505065658080100100125125125150150200200250250300300353535353535353535353535
1313115.1479446
实际流速
二回流量m3/h
求得管径
DN
1.03546875
0.66270.66270.4241280.2509633140.1656750.1060320.067860480.0471253330.0265080.016965120.011781333
求得管径实际流速
127.214732181.4174285752.1071542930.8326356720.3543571413.026788578.3371446865.789683813.2566971432.0842861712.0842861711.447420952
求得管径实际流速
FALSE
86.3
4040506580100125150200250300
40
FALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSEFALSE
250250300
250
174.6478514
142.5993735123.49468110.4569998110.4569998110.4569998100.83298493.3532033387.323925787.3239257
87.3239257253240506580100125150200250300350
400
453.1901563290.0417185.626688109.838276972.51042546.40667229.7002700829.7002700820.6251875611.6016687.425067525.156296889FALSEFALSEFALSEFALSEFALSEFALSE
125125150200250300
125
求得管径DN
标准流速实际流速
3240506580100125125150200250300350
400129.78698438119.063671.512.20074881.57.21937798824.765917523.05018722.51.9521198082.51.9521198082.51.35563875630.76254683.50.48802995240.3389096894
0.248994873
40.1906367求得管径FALSEFALSEFALSEFALSEFALSEFALSE
125125150200250300
350
400
125
根据流量计算无缝钢管管径附公式
