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换热器设计k值计算用表

管程流速2Re摩擦系数单程管长P1P2p3p管(30-70k)总管数n

2.156281.130.024*********.926577.2953288.64766059.6532724

1.129480.590.027********.2391804.65590

2.327319788.02991380

1.334840.70.026446 4.56665.8262520.5511260.2752698

2.13051168

1.437520.750.02605267615.712923.2421461.62130970.68791086

1.334840.70.02644666665.8262520.5511260.2752698

2.13051168

1.232160.650.02688465773.7842147.6881073.84423253.96461264

1.334840.70.02644666665.8262520.5511260.2752698

2.13051264

1.232160.650.02688465773.7842147.6881073.84423253.96461264

1.334840.70.02644666665.8262520.5511260.2752698

2.13051168

1.232160.650.02688465773.7842147.6881073.84423253.96461264

壳程流速1Re壳f0nc Nb p1'D B P2‘

9.2311076000.20933929.5979719237535.5 1.10.3212560.2

4.515412000.2464740.863191364529.8 1.50.4536569.47

6.217452000.2291353

7.593621297166.14 1.40.3563366.33

6.78040000.22520236.2499713115435.5 1.30.3578983.96

6.227464000.2290513

7.593621297443.58 1.40.3563570.57

6.227464000.22905139.108061714035

7.1 1.40.3588789.88

4.845808000.24253439.108061369990.55 1.40.4539154.22

5.97080000.23182639.1080614106513.9 1.30.463260.48

4.845808000.24253437.593621367280.21 1.40.4539154.22

5.216252000.23849439.108061379749.85 1.30.445805.67

4.355220000.24850839.108061149653.47 1.40.526092.78

P壳(70-250k)

450095.686

101099.262

160532.47

194419.453

161014.145

229147.011

109144.772

169774.419（改变为0.85）106434.425

125555.524（改变为0.85，0.35）75746.2488（改变为0.85，0.35）