-40
104950
1.04
-60
0.05
0.5
-21
0.29599999999999999
2.96
18
1.04
10.039999999999999
-60
1.5910000000000001E-2
0.15
-38
115070
1.1499999999999999
-59
5.2999999999999999E-2
0.53
-20
0.30599999999999999
3.06
19
1.06
10.06
-50
2.945E-2
0.28999999999999998
-36
125940
1.25
-58
5.6000000000000001E-2
0.56000000000000005
-19
0.318
3.18
20
1.0900000000000001
10.09
-40
5.1209999999999999E-2
0.51
-34
137610
1.37
-57
5.8999999999999997E-2
0.59
-18
0.33
3.3
21
1.1200000000000001
11.2
-30
8.4379999999999997E-2
0.84
-32
150110
1.5
-56
6.2E-2
0.62
-17
0.34300000000000003
3.43
22
1.1499999999999999
11.5
-28
9.2100000000000001E-2
0.9
-30
163480
1.63
-55
6.6000000000000003E-2
0.66
-16
0.35399999999999998
3.54
23
1.18
11.8
-26.07
0.10133
1
-28
177760
1.77
-54
6.9000000000000006E-2
0.69
-15
0.36799999999999999
3.68
24
1.22
12.2
-26
0.10167
1.01
-26
192990
1.92
-53
7.1999999999999995E-2
0.72
-14
0.38100000000000001
3.81
25
1.25
12.5
-24
0.1113
1.1100000000000001
-24
209220
2.09
-52
7.5999999999999998E-2
0.76
-13
0.39400000000000002
3.94
26
1.28
12.8
-22
0.12164999999999999
1.21
-22
226480
2.2599999999999998
-51
0.08
0.8
-12
0.40699999999999997
4.07
27
1.31
13.1
-20
0.13213
1.32
-20
224830
2.2400000000000002
-50
8.4000000000000005E-2
0.84
-11
0.42399999999999999
4.24
28
1.36
13.6
-18
0.14460000000000001
1.4
-18
264290
2.64
-49
8.8999999999999996E-2
0.89
-10
0.438
4.38
29
1.39
13.9
-16
0.15728
1.5
-16
284930
2.84
-48
9.2999999999999999E-2
0.93
-9
0.45300000000000001
4.53
30
1.43
14.3
-14
0.17082
1.7
-14
306780
3.06
-47
9.8000000000000004E-2
0.98
-8
0.46800000000000003
4.68
31
1.46
14.6
-12
0.18523999999999999
1.8
-12
329890
3.29
-46
0.10299999999999999
1
-7
0.48299999999999998
4.83
32
1.5
15
-10
0.2006
2
-10
354300
3.54
-45
0.108
1.08
-6
0.5
5
33
1.53
15.3
-8
0.21693000000000001
2.1
-8
380060
3.8
-44
1.1200000000000001
-5
0.51600000000000001
5.16
34
1.57
15.7
-6
0.23427999999999999
2.2999999999999998
-6
407230
4.07
-43
0.11799999999999999
1.18
-4
0.53300000000000003
5.3
35
1.61
16.100000000000001
-4
0.25268000000000002
2.5
-4
435840
4.3499999999999996
-42
0.124
1.24
-3
0.55100000000000005
5.5
36
1.66
16.600000000000001
-2
0.27217000000000002
2.7
-2
465940
4.6500000000000004
-41
0.129
1.29
-2
0.56899999999999995
5.6
37
1.69
16.899999999999999
0
0.2928
2.9
0
497590
4.97
-40
0.13600000000000001
1.36
-1
0.58799999999999997
5.8
38
1.73
17.3
2
0.31462000000000001
3.1
2
530830
5.3
-39
0.14099999999999999
1.41
0
0.60799999999999998
6.08
39
1.78
17.8
4
0.33766000000000002
3.3
4
565710
5.65
-38
0.14899999999999999
1.49
1
0.628
6.2
40
1.82
18.2
6
0.36198000000000002
3.6
6
602280
6.02
-37
0.155
1.55
2
0.64500000000000002
6.45
41
1.87
18.7
8
0.36760999999999999
3.67
8
640590
6.4
-36
0.161
1.61
3
0.66500000000000004
6.65
42
1.91
19.100000000000001
10
0.41460999999999998
4.0999999999999996
10
680700
6.87
-35
0.16800000000000001
1.68
4
0.68700000000000006
6.87
43
1.96
19.600000000000001
12
0.44301000000000001
4.4000000000000004
12
722650
7.22
-34
0.17699999999999999
1.77
5
0.71
7.1
44
2.0299999999999998
20.3
14
0.47288000000000002
4.7
14
766500
7.66
-33
0.184
1.84
6
0.73
7.3
45
2.06
20.6
16
0.50424999999999998
5
16
812290
6.12
-32
0.192
1.92
7
0.752
7.52
46
2.09
20.9
18
0.53717999999999999
5.3
18
860080
8.6
-31
0.2
2
8
0.77700000000000002
7.77
47
2.15
21.5
20
0.57171000000000005
5.7
20
909930
9.09
-30
0.20799999999999999
2.08
9
0.8
8
48
2.2000000000000002
22
22
0.60789000000000004
6
22
961890
9.61
-29
0.217
2.17
10
0.82299999999999995
8.23
49
2.25
22.5
24
0.64578000000000002
6.4
24
1016000
10.16
-28
0.22600000000000001
2.2200000000000002
11
0.85
8.5
50
2.29
22.9
26
0.68542999999999998
6.8
26
1072300
10.72
-27
0.23499999999999999
2.35
12
0.872
8.7200000000000006
51
2.35
23.5
28
0.72687999999999997
7.2
28
1130900
11.3
-26
0.24299999999999999
2.4300000000000002
13
0.9
9
52
2.41
24.1
30
1191900
11.91
-25
0.253
2.5299999999999998
14
0.92300000000000004
9.23
53
2.4700000000000002
24.7
32
1255200
12.55
-24
0.26400000000000001
2.64
15
0.95
9.5
54
2.5099999999999998
25.1
34
1321000
13.21
-23
0.27500000000000002
2.75
16
0.97799999999999998
9.7799999999999994
55
2.57
25.7
36
-22
0.28399999999999997
2.84
17
1.01
10.1
温度
R22饱和状态下热力值
R404a饱和状态下热力值
0,112
绝对压
力Mpa
公斤
压力
绝对压
力pa
R134a饱和状态下热力值
蒸发温度越低，压力越低，库温温度减去5-8度就等于蒸发温度，已知蒸发温度就知道对应的压力是多少，再减去管道损耗1公斤
就是你想要知道的低压压力了。低压压力正常，高压偏高，一定是散热效果差等辅助设施散热效果差，需要清洗散热设备
常用的氟里昂制冷剂有R12、R22、R502及R134a
蒸发温度是指制冷剂在蒸发器内沸腾的温度，它与相应的蒸发压力是对应的。蒸发温度升高．蒸发压力也升高
在满足被冷却对象要求的前提下，应当尽可能采用较高的蒸发温度
R404A由HFC125,HFC-134a和HFC-143混合而成，R-404A适用于中低温的新型商用制冷设备、交通运输制冷设备或更新设备。
最接近于R-502的运作，甚至可以达到15℉（-9.4℃）或更冷，该制冷剂适用于所有R-502可正常运作的环境。
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