公称直径

D_g

mm

管

程

数

管

子

数

量

换热面积m²     公称值/计算值

管程通道截面积m²

管程流速为0.5m/scc时的流量m³/hr

公称压力

 P_g

  MPa

管子长度1（mm）

碳钢管Ø25×2.5

1500

2000

3000

4000

6000

不锈钢管Ø25×2

159

Ⅰ

14

1.5/1.62

2/2.17

3/3.27

0.0044/0.0049

7.92/8.82

0.25

0.6

1.0

1.6

2.5

219

Ⅰ

26

3/3.00

4/4.02

6/6.06

8/8.11

0.0082/0.0090

14.76/16.20

Ⅲ

26

3/3.00

4/4.02

6/6.06

8/8.11

0.0041/0.0045

7.38/8.10

273

Ⅰ

44

5/5.08

7/6.81

10/10.26

14/13.72

21/20.63

0.0138/0.0152

24.84/27.36

Ⅲ

40

5/4.62

6/6.19

9/9.33

12/12.47

19/18.76

0.0063/0.0069

11.34/12.42

325

Ⅰ

60

7/6.93

9/9.28

14/14.00

19/18.71

28/28.13

0.0188/0.0208

33.84/37.44

Ⅲ

56

6/6.47

9/8.66

13/13.06

17/17.46

26/26.26

0.0088/0.0097

15.84/17.46

400

Ⅰ

119

14/13.74

18/18.41

28/27.76

37/37.10

55/55.80

0.0374/0.0412

67.32/74.16

Ⅲ

110

13/12.70

17/17.02

26/25.66

34/34.20

50/51.58

0.0173/0.0190

31.14/34.20

500

Ⅰ

185

45/43.15

55/57.68

85/86.74

0.0581/0.0641

104.58/115.48

Ⅲ

180

40/41.99

55/56.12

85/84.40

0.0283/0.0312

50.94/56.16

600

Ⅰ

169

60/62.7

85/83.88

125/126.13

0.0845/0.0932

152.10/167.76

0.6

1.0

1.6

2.5

Ⅲ

266

60/62.05

80/82.94

125/124.72

0.0418/0.0461

72.24/82.98

700

Ⅰ

379

90/88.41

120/118.17

175/177.71

0.1191/0.1313

214.38/236.34

Ⅲ

358

85/83.51

110/111.62

165/167.86

0.0562/0.0620

101.16/111.60

800

Ⅰ

511

120/119.20

160/159.33

240/239.60

0.1605/0.1770

288.90/318.60

Ⅲ

488

115/133.83

150/152.16

230/228.81

0.0767/0.0845

138.06/152.10

900

Ⅰ

649

150/151.39

200/202.36

305/304.30

0.2039/0.2248

367.02/404.64

Ⅲ

630

145/146.96

195/196.44

295/295.40

0.0990/0.1091

178.20/196.38

1000

Ⅰ

805

185/187.78

250/251.00

375/377.45

0.2529/0.2788

455.22/501.84

Ⅲ

792

185/184.75

245/246.95

370/371.36

0.1244/0.1372

223.92/246.96