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过热蒸汽密度对照表

一、过热蒸汽的定义:
  在饱和状态下的液体称为饱和液体,其对应的蒸汽是饱和蒸汽,但最初只是湿饱和蒸汽,待蒸汽中的水分完全蒸发后才是干饱和蒸汽。蒸汽从不饱和到湿饱和再到干饱和的过程温度是不增加的,干饱和之后继续加热则温度会上升,成为过热蒸汽。
二、过热蒸汽常规应用领域:
  过热蒸汽有其本身的应用领域,如用在发电机组的透平,通过喷嘴至电机,推动电机转动。但是过热蒸汽很少用于工业制程的热量传递过程,这是因为过热蒸汽在冷凝释放蒸发焓之前必须先冷却到饱和温度,很显然,与饱和蒸汽的蒸发焓相比,过热蒸汽冷却到饱和温度释放的热量是很小的,从而会降低工艺制程设备的性能。
三、过热蒸汽密度表:

压力
温度(℃)
(MPa)
150
170
190
210
230
250
270
290
310
330
0.1
0.5164
0.4925
0.4707
0.4507
0.4323
0.4156
0.4001
0.3857
0.3724
0.36
0.15
0.7781
0.7412
0.7079
0.6777
0.65
0.6246
0.601
0.5795
0.5594
0.5404
0.2
1.0423
0.9918
0.9466
0.9056
0.8684
0.8342
0.8027
0.7736
0.7465
0.7214
0.25
1.3089
1.2444
1.1869
1.1349
1.0849
1.0445
1.0048
0.9682
0.9343
0.9027
0.3
1.5783
1.499
1.4287
1.3653
1.3079
1.254
1.2077
1.1634
1.1224
1.0844
0.4
2.1237
2.0141
1.9166
1.8297
1.7513
1.678
1.6152
1.5554
1.5
1.449
0.5
2.6658
2.538
2.4121
2.2997
2.1992
2.1081
2.0255
1.9495
1.8802
1.8147
0.8
4.3966
4.1676
3.935
3.74
3.5374
3.411
3.2718
3.1453
3.0283
2.9215
1.1
6.1313
5.8332
5.5342
5.2356
4.981
4.746
4.5445
4.3612
4.1943
4.041
1.4
7.8785
7.5163
7.154
6.7913
6.4288
6.1147
5.8437
5.5945
5.3794
5.177
1.7
9.8464
9.3688
9.2473
8.413
7.9352
7.5219
7.1803
6.8607
6.5815
6.3309
2
11.6295
11.0985
10.5676
10.0366
9.5054
8.9744
8.0535
8.1447
7.8061
7.4955
2.5
15.189
14.4516
13.715
12.9776
12.2406
11.0536
10.8794
10.35
9.8888
9.4806
3
18.4168
17.5709
16.7243
15.8776
15.0367
14.1842
13.3377
12.6359
11.9979
11.5143
3.5
22.7008
21.5713
20.4427
19.3131
18.2266
17.053
15.9243
15.0163
14.2565
13.8501
4
27.164
25.747
24.3303
22.9129
21.4954
20.0778
18.6603
17.4997
16.5527
15.749
4.5
30.3852
28.9163
27.4475
25.9784
24.5096
23.0407
21.5717
20.1028
18.9333
17.9308
5
35.4243
33.6293
31.8342
30.0384
28.2433
26.4483
24.6532
22.858
21.4221
20.2508
6
43.8954
41.7475
39.5988
37.4508
35.302
33.1541
31.0062
28.8574
26.7091
25.0502
7
56.7201
53.6991
50.678
47.6561
44.6352
41.6133
38.5922
35.5704
32.5488
30.2231
8
65.4713
62.18
58.8883
55.5968
52.3061
49.0145
45.7231
42.4316
39.1399
35.8485
9
84.5457
79.8261
75.1061
70.3863
65.6665
60.9465
56.21
51.5077
46.7877
42.068
10
108.625
102.0289
95.4346
88.8412
82.2486
75.6543
65.7699
62.4676
59.6648
49.2802
12.5
158.3464
148.7516
139.1587
129.5629
119.9781
110.3842
95.7769
91.1964
81.6043
72.0105
15
206.4175
194.4276
182.4477
170.4577
158.4766
146.4967
127.682
122.5268
110.5369
98.5531
17.5
250.3934
236.691
222.8603
209.1592
195.4568
181.6261
163.428
154.2312
140.3919
126.6895
20
327.8165
309.9521
291.2953
273.4409
255.5786
236.9271
219.0574
201.2031
182.5462
164.6839
21.5
384.6647
363.2975
341.9027
320.5455
299.188
277.7931
256.426
235.0688
213.6739
192.3164

专业提供:蒸汽减压阀,自力式压力调节阀,气动三通调节阀,电动温度调节阀,导热油调节阀,氮封阀的计算、选型。