公称直径

公称压力

管程数

管子根数

中心

管程流通

计算换热面积A/mm2

DN

PN

N

N

排管数

面积

换热管长度L/mm

mm

MPa

m2

2000

3000

4500

6000

换热管为φ25×2.5

159

1.6

2.5

4.0

6.4

1

11

3

0.0035

1.6

2.5

-

-

219

1

25

5

0.0079

3.7

5.7

-

-

273

1

38

6

0.0119

5.7

8.7

13.1

17.6

2

32

7

0.0050

4.8

7.3

11.1

14.8

325

1

57

9

0.0179

8.5

13.0

19.7

26.4

2

56

9

0.0088

8.4

12.7

19.3

25.9

4

40

9

0.0031

6.0

9.1

13.8

18.5

400

0.60

1.00

1.60

2.50

4.00

1

98

12

0.0308

14.6

22.3

33.8

45.4

2

94

11

0.0148

14.0

21.4

32.5

43.5

4

76

11

0.0060

11.3

17.3

26.3

35.2

450

1

135

13

0.0424

20.1

30.7

46.6

62.5

2

126

12

0.0198

18.8

28.7

43.5

58.4

4

106

13

0.0083

15.8

24.1

36.6

49.1

500

1

174

14

0.0546

26.0

36.9

60.1

80.6

2

164

15

0.0257

24.5

37.3

56.6

76.0

4

144

15

0.0113

21.4

32.8

49.7

66.7

600

1

245

17

0.0769

36.5

55.8

84.6

113.5

2

232

16

0.0364

34.6

52.8

80.1

107.5

4

222

17

0.0174

33.1

50.5

76.7

102.8

6

216

16

0.0113

32.2

49.2

74.6

100.0

700

1

355

21

0.0115

-

80.0

122.6

164.4

2

342

21

0.0537

-

77.9

118.1

158.4

4

322

21

0.0253

-

73.3

111.2

149.1

6

304

20

0.0159

-

69.2

105.0

140.8

800

0.60

1.00

1.60

2.50

4.00

1

467

23

0.1466

-

106.3

161.3

216.3

2

450

23

0.0707

-

102.4

155.4

208.5

4

442

23

0.0347

-

100.6

152.7

204.7

6

430

24

0.0225

-

97.9

148.5

119.2

900

1

605

27

0.1900

-

137.8

209.0

280.2

2

588

27

0.0923

-

133.9

203.1

272.3

4

554

27

0.0435

-

126.1

191.4

256.6

6

538

26

0.0282

-

122.5

185.8

249.2

1000

1

749

30

0.2352

-

170.5

258.7

346.9

2

742

29

0.1165

-

168.9

256.3

343.7

4

710

29

0.0557

-

161.6

245.2

328.8

6

698

30

0.0365

-

158.9

241.1

323.3

1200

1

1115

37

0.3501

-

-

385.1

516.4

2

1102

37

0.1730

-

-

380.6

510.4

4

1052

37

0.0826

-

-

363.4

487.2

6

1026

36

0.0537

-

-

354.4

475.2