铸钢法兰浮球式蒸汽疏水阀管道中未经过热处理的蒸汽称为饱和蒸汽，饱和蒸汽是在一个大气压下，温度为100度的蒸汽，温度不能再升高，是饱和状态下的蒸汽。根据压力、饱和温度、比容、密度、比焓来了解饱和蒸汽的性质。铸钢法兰浮球式蒸汽疏水阀管里饱和蒸汽由气体分子之间的热运动现象造成的。在饱和状态下的液体称为饱和液体，其蒸汽称为干饱和蒸汽（也称饱和蒸汽）。 它是无色、无味、不能燃烧又无腐蚀性的气体。
铸钢法兰浮球式蒸汽疏水阀管道饱和蒸汽的性质：
压力 |
饱和(沸腾)温度t/℃ |
比容/(m3/kg) |
密度/(kg/m3) |
比焓/(J/kg) |
||||
P绝对/Mpa |
h/mmHg |
饱和水υ′ |
饱和蒸汽υ″ |
饱和蒸汽γ |
拥有热量 |
蒸发热(蒸汽的潜热)r=i″-i′ |
||
饱和水i′ |
饱和蒸汽i″ |
|||||||
0.001 |
7.36 |
6.7700 |
0.0010001 |
131.6 |
0.0076 |
28177.164 |
2512498.6 |
2484321.5 |
0.002 |
14.71 |
17.202 |
0.0010013 |
68.28 |
0.0147 |
72180.432 |
2531757.9 |
2459577.5 |
0.003 |
22.07 |
23.771 |
0.0010027 |
46.50 |
0.0215 |
99603.972 |
2543481 |
2443877.1 |
0.004 |
29.42 |
28.641 |
0.0010040 |
35.43 |
0.0282 |
119951.82 |
2552273.2 |
2432321.4 |
0.005 |
36.78 |
32.55 |
0.0010052 |
28.70 |
0.0348 |
136280.34 |
2559390.8 |
2423110.5 |
0.006 |
44.13 |
35.82 |
0.0010064 |
24.17 |
0.0414 |
149929.3 |
2565252.3 |
2415323 |
0.007 |
51.49 |
38.66 |
0.0010074 |
20.90 |
0.0478 |
161777.95 |
2570276.5 |
2408498.6 |
0.008 |
58.84 |
41.16 |
0.0010083 |
18.43 |
0.0542 |
172244.95 |
2574882 |
2402637.1 |
0.009 |
66.20 |
43.41 |
0.0010093 |
16.50 |
0.0606 |
181623.38 |
2579068.8 |
2397445.5 |
0.010 |
73.50 |
45.45 |
0.0010101 |
14.94 |
0.0669 |
190122.58 |
2582418.2 |
2392295.7 |
0.012 |
88.27 |
49.05 |
0.0010117 |
12.58 |
0.0796 |
205153.2 |
2589117.1 |
2383963.9 |
0.014 |
103 |
52.17 |
0.0010131 |
10.89 |
0.0918 |
218216.01 |
2594141.2 |
2375925.2 |
0.016 |
117.7 |
54.93 |
0.0010144 |
9.602 |
0.1041 |
229729.71 |
2599165.4 |
2369435.7 |
0.018 |
132.4 |
57.41 |
0.0010157 |
8.597 |
0.1163 |
240112.98 |
2603352.2 |
2363239.3 |
0.020 |
147.1 |
59.66 |
0.0010169 |
7.787 |
0.1284 |
249533.28 |
2607120.3 |
2357587.1 |
0.022 |
161.8 |
61.73 |
0.0010180 |
7.121 |
0.1404 |
258199.95 |
2610888.4 |
2352688.5 |
0.026 |
191.2 |
65.43 |
0.0010201 |
6.088 |
0.1643 |
273691.11 |
2617587.3 |
2343896.2 |
0.030 |
220.7 |
68.67 |
0.0010220 |
5.323 |
0.1878 |
287214.48 |
2623030.2 |
2335815.8 |
0.040 |
294.2 |
75.41 |
0.0010261 |
4.065 |
0.2462 |
315475.38 |
2634334.5 |
2318859.2 |
0.050 |
367.8 |
80.86 |
0.0010296 |
3.299 |
0.3030 |
338335.3 |
2643545.5 |
2305210.2 |
0.060 |
441.3 |
85.45 |
0.0010327 |
2.781 |
0.3596 |
357594.58 |
2651081.7 |
2293487.2 |
0.070 |
514.9 |
89.45 |
0.0010355 |
2.408 |
0.4153 |
374425.52 |
2657780.6 |
2283355.1 |
0.080 |
588.4 |
92.99 |
0.0010381 |
2.124 |
0.4708 |
389288.66 |
2663642.1 |
2274353.5 |
0.090 |
662.0 |
96.18 |
0.0010405 |
1.903 |
0.5255 |
402728.29 |
2668666.3 |
2265938.1 |
0.10 |
735.6 |
99.09 |
0.0010428 |
1.725 |
0.5797 |
414995.61 |
2673271.8 |
2258276.2 |
0.12 |
0.2 |
104.25 |
0.0010468 |
1.454 |
0.6878 |
436766.97 |
2681226.7 |
2244459.8 |
0.14 |
0.4 |
108.74 |
0.0010505 |
1.259 |
0.7943 |
455775.04 |
26888344.2 |
2232569.2 |
0.16 |
0.6 |
112.73 |
0.0010538 |
1.110 |
0.9009 |
472647.85 |
2694205.8 |
2221558 |
0.18 |
0.8 |
116.33 |
0.0010570 |
0.9953 |
1.004 |
487887.8 |
2699648.6 |
2211760.8 |
0.20 |
1.0 |
119.62 |
0.0010600 |
0.9018 |
1.109 |
501829.84 |
2704672.8 |
2202843 |
0.22 |
1.2 |
122.64 |
0.0010627 |
0.8249 |
1.212 |
514641.45 |
2708859.6 |
2194218.2 |
0.24 |
1.4 |
125.46 |
0.0010653 |
0.7603 |
1.315 |
526866.91 |
2713046.4 |
2186179.5 |
0.26 |
1.6 |
128.08 |
0.0010679 |
0.7054 |
1.418 |
537794.46 |
2716814.5 |
2179020.1 |
0.28 |
1.8 |
130.55 |
0.0010702 |
0.6581 |
1.519 |
548387.06 |
2720163.9 |
2171776.9 |
0.30 |
2.0 |
132.88 |
0.0010725 |
0.6170 |
1.621 |
558351.64 |
2723513.4 |
2165161.8 |
0.32 |
2.2 |
135.08 |
0.0010747 |
0.5806 |
1.722 |
567771.94 |
2726444.1 |
2158672.2 |
0.34 |
2.4 |
137.18 |
0.0010768 |
0.5484 |
1.823 |
576773.56 |
2729374.9 |
2152601.4 |
0.36 |
2.6 |
139.18 |
0.0010789 |
0.5198 |
1.924 |
585314.64 |
2731887 |
2146572.4 |
0.38 |
2.8 |
141.09 |
0.0010809 |
0.4941 |
2.024 |
593478.9 |
2734399 |
2140920.1 |
0.40 |
3.0 |
142.92 |
0.0010828 |
0.4709 |
2.124 |
601350.08 |
2736911.1 |
2135561.1 |
0.42 |
3.2 |
144.58 |
0.0010847 |
0.4498 |
2.223 |
608970.06 |
2739004.5 |
2130034.5 |
0.44 |
3.4 |
146.38 |
0.0010865 |
0.4306 |
2.322 |
616338.82 |
2741097.9 |
2124759.1 |
0.46 |
3.6 |
148.01 |
0.0010884 |
0.4130 |
2.421 |
623372.65 |
2743191.3 |
2119818.7 |
0.48 |
3.8 |
149.59 |
0.0010901 |
0.3968 |
2.520 |
630071.53 |
2745284.7 |
2115213.2 |
0.50 |
4.0 |
151.11 |
0.0010918 |
0.3818 |
2.619 |
636561.07 |
2746959.4 |
2110398.4 |
0.52 |
4.2 |
152.59 |
0.0010935 |
0.3680 |
2.717 |
643008.74 |
2748634.2 |
2105625.5 |
0.54 |
4.4 |
154.02 |
0.0010951 |
0.3551 |
2.816 |
649163.34 |
2750308.9 |
2101145.6 |
0.56 |
4.6 |
155.41 |
0.0010967 |
0.3431 |
2.914 |
655150.46 |
2751983.6 |
2096833.2 |
0.58 |
4.8 |
156.76 |
0.0010983 |
0.3320 |
3.012 |
661011.98 |
2753658.3 |
2092646.4 |
0.60 |
5.0 |
158.08 |
0.0010998 |
0.3215 |
3.110 |
666747.9 |
2755333 |
2088585.1 |
0.62 |
5.2 |
159.36 |
0.0011013 |
0.3117 |
3.208 |
672400.08 |
2756589.1 |
2084189.0 |
0.64 |
5.4 |
160.61 |
0.0011028 |
0.3025 |
3.301 |
677842.92 |
2757845.1 |
2080002.2 |
0.66 |
5.6 |
161.82 |
0.0011042 |
0.2938 |
3.404 |
683118.28 |
2759519.8 |
2076401.6 |
0.68 |
5.8 |
163.01 |
0.0011056 |
0.2857 |
3.500 |
688351.78 |
2760775.9 |
2072424.2 |
0.70 |
6.0 |
164.17 |
0.0011070 |
0.2779 |
3.598 |
693334.08 |
2762031.9 |
2068697.9 |
0.72 |
6.2 |
165.31 |
0.0011084 |
0.2706 |
3.695 |
698358.24 |
2763288 |
2064929.8 |
0.74 |
6.4 |
166.42 |
0.0011098 |
0.2638 |
3.791 |
703131.19 |
2764125.3 |
2064994.2 |
0.76 |
6.6 |
167.50 |
0.0011111 |
0.2571 |
3.890 |
707778.54 |
2765381.4 |
2057602.9 |
0.78 |
6.8 |
168.57 |
0.0011125 |
0.2509 |
3.986 |
712467.75 |
2766637.4 |
2054169.7 |
0.80 |
7.0 |
169.61 |
0.0011139 |
0.2449 |
4.083 |
717031.36 |
2767474.8 |
2050443.5 |
0.82 |
7.2 |
170.63 |
0.0011152 |
0.2393 |
4.179 |
721469.37 |
2768730.8 |
2047261.5 |
0.84 |
7.4 |
171.63 |
0.0011165 |
0.2338 |
4.277 |
725991.12 |
2769568.2 |
2043577.1 |
0.86 |
7.6 |
172.62 |
0.0011177 |
0.2288 |
4.371 |
730303.52 |
2770824.2 |
2040520.7 |
0.88 |
7.8 |
173.58 |
0.0011189 |
0.2239 |
4.466 |
734532.19 |
2771661.6 |
2037129.5 |
0.90 |
8.0 |
174.53 |
0.0011202 |
0.2191 |
4.564 |
738760.86 |
2772498.9 |
2033738.1 |
0.92 |
8.2 |
175.47 |
0.0011215 |
0.2145 |
4.665 |
742863.92 |
2773336.3 |
2030472.4 |
0.94 |
8.4 |
176.38 |
0.0011227 |
0.2102 |
4.757 |
746841.38 |
2774173.6 |
2027332.3 |
0.96 |
8.6 |
177.28 |
0.0011238 |
0.2060 |
4.854 |
750776.97 |
2775011 |
2024234.1 |
0.98 |
8.8 |
178.17 |
0.0011250 |
0.2020 |
4.951 |
754670.7 |
2775848.4 |
2021177.7 |
1.00 |
9.0 |
179.04 |
0.0011262 |
0.1981 |
5.048 |
758606.29 |
2776685.7 |
2018079.5 |
1.1 |
10 |
183.20 |
0.0011318 |
0.1806 |
5.537 |
776860.74 |
2780453.8 |
2003593.1 |
1.2 |
11 |
187.08 |
0.0011373 |
0.1662 |
6.017 |
794110.35 |
2783384.6 |
1989274.3 |
1.3 |
12 |
190.71 |
0.0011425 |
0.1540 |
6.494 |
810271.4 |
2786315.4 |
1976044 |
1.4 |
13 |
194.13 |
0.0011476 |
0.1436 |
6.964 |
825553.22 |
2788827.4 |
1963274.2 |
1.5 |
14 |
197.36 |
0.0011524 |
0.1344 |
7.440 |
839997.68 |
2790920.8 |
1950923.3 |
1.6 |
15 |
200.43 |
0.0011571 |
0.1263 |
7.918 |
853939.72 |
2793014.2 |
1939074.5 |
1.7 |
16 |
203.36 |
0.0011618 |
0.1190 |
8.403 |
867086.28 |
2794689 |
1927602.8 |
1.8 |
17 |
206.16 |
0.0011662 |
0.1126 |
8.881 |
879814.15 |
2796363.7 |
1916549.6 |
1.9 |
18 |
208.82 |
0.0011706 |
0.1067 |
9.372 |
891955.87 |
2797619.7 |
1905663.9 |
2.0 |
19 |
211.38 |
0.0011749 |
0.1015 |
9.852 |
903595.17 |
2798875.8 |
1895280.7 |
2.1 |
20 |
213.85 |
0.0011791 |
0.09681 |
10.329 |
914941.4 |
2799713.1 |
1884771.7 |
2.2 |
21 |
216.23 |
0.0011832 |
0.09249 |
10.812 |
925785.201 |
2800550.5 |
1874765.3 |
2.3 |
22 |
218.53 |
0.0011873 |
0.08854 |
11.294 |
936377.82 |
2801387.8 |
1865010 |
2.4 |
23 |
220.75 |
0.0011914 |
0.08490 |
11.778 |
946761.08 |
2802225.2 |
1855464.2 |
2.5 |
24 |
222.90 |
0.0011953 |
0.08153 |
12.265 |
956767.53 |
2802643.9 |
1845876.4 |
2.6 |
25 |
224.98 |
0.0011992 |
0.07842 |
12.750 |
966397.17 |
2803062.6 |
1836665.5 |
2.7 |
26 |
227.01 |
0.0012030 |
0.07556 |
13.235 |
975943.08 |
2803481.2 |
1827538.2 |
2.8 |
27 |
228.97 |
0.0012067 |
0.07285 |
13.727 |
985028.43 |
2803899.9 |
1818871.5 |
2.9 |
28 |
230.89 |
0.0012104 |
0.07036 |
14.212 |
994071.92 |
2803899.9 |
1809828 |
3.0 |
29 |
232.73 |
0.0012141 |
0.06800 |
14.706 |
1002780.4 |
2803899.9 |
1801119.5 |
3.1 |
30 |
234.57 |
0.0012178 |
0.06580 |
15.198 |
1010107.3 |
2803899.9 |
1793792.6 |
3.2 |
31 |
236.34 |
0.0012215 |
0.06373 |
15.691 |
1020113.8 |
2803899.9 |
1783786.1 |
3.3 |
32 |
238.07 |
0.0012251 |
0.06178 |
16.186 |
1027859.4 |
2803899.9 |
1776040.5 |
3.4 |
33 |
239.76 |
0.0012286 |
0.05994 |
16.683 |
1036233.3 |
2803899.9 |
1767666.6 |
3.5 |
34 |
241.41 |
0.0012321 |
0.05822 |
17.176 |
1043978.5 |
2803481.2 |
1759493.7 |
3.6 |
35 |
243.03 |
0.0012356 |
0.05658 |
17.674 |
1051724.1 |
2803062.6 |
1751338.5 |
3.7 |
36 |
244.61 |
0.0012390 |
0.05502 |
18.175 |
1059302.2 |
2803062.6 |
1743760.4 |
3.8 |
37 |
246.16 |
0.0012425 |
0.05354 |
18.678 |
1066671 |
2802643.9 |
1735972.9 |
3.9 |
38 |
247.68 |
0.0012458 |
0.05213 |
19.183 |
1073914.2 |
2802225.2 |
1728311 |
4.0 |
39 |
249.17 |
0.0012492 |
0.05079 |
15.689 |
1081241.1 |
2801806.5 |
1720565.4 |
4.2 |
41 |
252.07 |
0.0012560 |
0.04830 |
20.704 |
1095434.3 |
2800550.5 |
1705116.2 |
4.4 |
43 |
254.85 |
0.0012626 |
0.04603 |
21.725 |
1109208.9 |
2799713.1 |
1690504.2 |
4.6 |
45 |
257.56 |
0.0012693 |
0.04394 |
22.758 |
1122397.3 |
2798038.4 |
1675641.1 |
4.8 |
47 |
260.17 |
0.0012760 |
0.04202 |
23.798 |
1135292.6 |
2796782.4 |
1661489.8 |
5.0 |
48 |
262.70 |
0.0012826 |
0.04026 |
24.839 |
1147811.2 |
2795107.6 |
1647296.4 |
5.5 |
54 |
268.69 |
0.0012896 |
0.03640 |
27.473 |
1178039.9 |
2794689 |
1616649.1 |
6.0 |
59 |
274.29 |
0.0013147 |
0.03312 |
30.273 |
1206802.2 |
2790502.2 |
1583699 |
6.5 |
64 |
279.54 |
0.0013306 |
0.03036 |
32.938 |
1233975.5 |
2779616.5 |
1545641 |
7.0 |
69 |
284.48 |
0.0013664 |
0.02795 |
35.778 |
1259933.7 |
2773336.3 |
1513402.6 |
7.5 |
74 |
289.17 |
0.0013625 |
0.02587 |
38.655 |
1284970.7 |
2766637.4 |
1481666.7 |
8.0 |
79 |
293.62 |
0.0013786 |
0.02404 |
41.597 |
1309003 |
2759519.8 |
1450516.8 |
8.5 |
84 |
297.86 |
0.0013950 |
0.02242 |
44.603 |
1331821 |
2751983.6 |
1420162.6 |
9.0 |
89 |
301.91 |
0.0014114 |
0.02095 |
47.733 |
1354471.6 |
2744028.7 |
1389557.1 |
9.5 |
94 |
305.80 |
0.0014283 |
0.01964 |
50.916 |
1376326.7 |
2735655.1 |
1359328.4 |
10.0 |
99 |
309.53 |
0.0014452 |
0.01845 |
54.201 |
1397721.3 |
27726862.8 |
1329141.5 |
10.5 |
104 |
313.11 |
0.0014623 |
0.01739 |
57.504 |
1418487.8 |
2718070.5 |
1299591.7 |
11.0 |
109 |
316.57 |
0.0014801 |
0.01640 |
60.976 |
1438668.2 |
2708859.6 |
1270191.4 |
11.5 |
114 |
319.90 |
0.0014987 |
0.01549 |
64.558 |
1459183.5 |
2698811.2 |
1239627.7 |
12.0 |
119 |
323.14 |
0.0015176 |
0.01465 |
68.260 |
1479782.5 |
2688762.9 |
1208980.4 |
13.0 |
129 |
329.29 |
0.0015568 |
0.01315 |
76.047 |
1519096.6 |
2666991.6 |
1147895 |
14.0 |
139 |
335.08 |
0.0015994 |
0.01185 |
84.390 |
1558368.8 |
2643964.2 |
1085595.4 |
15.0 |
149 |
340.55 |
0.0016461 |
0.01068 |
93.634 |
1597682.8 |
2618424.7 |
1020741.9 |
16.0 |
159 |
345.74 |
0.0016975 |
0.00963 |
103.84 |
1637876.1 |
2590791.8 |
952915.7 |
17.0 |
169 |
350.66 |
0.001755 |
0.00869 |
115.07 |
1677232 |
2559390.8 |
882158.8 |
18.0 |
179 |
355.35 |
0.001820 |
0.00780 |
128.21 |
1681418.8 |
2523803 |
842384.2 |
19.0 |
189 |
359.82 |
0.001903 |
0.00697 |
143.5 |
1764317.5 |
2484028.4 |
719710.9 |
20.0 |
199 |
364.09 |
0.002004 |
0.00616 |
162.3 |
1812884.4 |
2436717.6 |
623833.2 |
21.0 |
209 |
368.16 |
0.002141 |
0.00537 |
186.2 |
1867731.4 |
2377265 |
509533.6 |
22.0 |
219 |
372.04 |
0.002385 |
0.00449 |
222.7 |
1943931.2 |
2294785 |
350853.8 |
22.565 |
224.65 |
374.15 |
0.00318 |
0.00318 |
314.5 |
2116846 |
2116846 |
0 |
注：
1.铸钢法兰浮球式蒸汽疏水阀饱和蒸汽的性质该数据来自日本机械学会修订蒸汽表。
2.本表以压力为基准。
3.i——比焓；r——蒸发热。
根据实际使用工况确定自由式疏水阀入口与出口的压差。自由式疏水阀的入口压力是指自由式疏水阀入口处可能达到的最低工作压力；自由式疏水阀的出口压力则指自由式疏水阀后可能形成的最高工作背压。当排入大气时，实际压差按自由式疏水阀入口压力决定。
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