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不同品牌反滲透膜產水量與溫度的關系

分割線

實驗室超純水機或純水、超純水機工程設備制取純水的主要工藝為反滲透。反滲透制取純水有個特點是:反滲透膜的實際產水量受溫度的影響變化較大。大多數實驗室超純水機或反滲透純水設備產水量是按反滲透膜在25℃進水溫度下的標準產水量來標注的。因此,客戶在選擇實驗室超純水機或反滲透純水設備時,考慮到冬季水溫較低,以及反滲透膜投入使用后水通量會逐漸降低的影響因素,務必放大需求產水量至設備標稱產水量的1.5~2倍考慮。

溫度對反滲透膜產水量的影響如下圖所示。溫度變低,水的粘度增加,水的擴散性減弱,產水量也隨著溫度下降而降低。在同一壓力下,溫度下降一攝氏度,產水量可減小3~4%。下列方程是產水通量隨溫度變化的關系。

TCF=exp[K×(1÷(273+t)-1÷298]

其中TCF是溫度校正因子,K是膜材料常數,t是進水攝氏溫度。該方程將25℃作為基準,TCF=1。

反滲透膜產水量與溫度的關系

另外,一般反滲透膜生產廠家對自己品牌的反滲透膜元件都有一個膜產品的溫度校正系數,下面分別列舉了美國陶氏的FILMTEC反滲透膜、美國海德能的ESPA反滲透膜、韓國世韓的CSM系列反滲透膜、日本東麗反滲透膜以及國產匯通源泉VONTRON反滲透膜的膜產品溫度校正系數表。

陶氏的FILMTEC反滲透膜溫度校正系數(TCF)

溫度
溫度校
正系數
TCF
溫度
溫度校
正系數
TCF
溫度
溫度校
正系數
TCF
溫度
溫度校
正系數
TCF
溫度
溫度校
正系數
TCF
101.711141.475181.276221.109260.971
10.11.70514.11.46918.11.27222.11.10526.10.968
10.21.69814.21.46418.21.26722.21.10126.20.965
10.31.69214.31.45918.31.26222.31.09726.30.962
10.41.68614.41.45318.41.25822.41.09326.40.959
10.51.67914.51.44818.51.25422.51.0926.50.957
10.61.67314.61.44318.61.24922.61.08626.60.954
10.71.66714.71.43718.71.24522.71.08226.70.951
10.81.6614.81.43218.81.2422.81.07826.80.948
10.91.65414.91.42718.91.23622.91.07526.90.945
111.648151.422191.232231.071270.943
11.11.64215.11.41719.11.22723.11.06727.10.94
11.21.63615.21.41119.21.22323.21.06427.20.937
11.31.6315.31.40619.31.21923.31.0627.30.934
11.41.62415.41.40119.41.21423.41.05627.40.932
11.51.61815.51.39619.51.2123.51.05327.50.929
11.61.61115.61.39119.61.20623.61.04927.60.926
11.71.60515.71.38619.71.20123.71.04527.70.924
11.81.615.81.38119.81.19723.81.04227.80.921
11.91.59415.91.37619.91.19323.91.03827.90.918
121.588161.371201.189241.035280.915
12.11.58216.11.36620.11.18524.11.03128.10.913
12.21.57616.21.36120.21.1824.21.02828.20.91
12.31.5716.31.35620.31.17624.31.02428.30.908
12.41.56416.41.35120.41.17224.41.02128.40.905
12.51.55816.51.34720.51.16824.51.01728.50.902
12.61.55316.61.34220.61.16424.61.01428.60.9
12.71.54716.71.33720.71.1624.71.0128.70.897
12.81.54116.81.33220.81.15624.81.00728.80.894
12.91.53616.91.32720.91.15224.91.00329.90.892
131.53171.323211.148251290.889
13.11.52417.11.31821.11.14425.10.99729.10.887
13.21.51917.21.31321.21.1425.20.99429.20.884
13.31.51317.31.30821.31.13625.30.99129.30.882
13.41.50817.41.30421.41.13225.40.98829.40.879
13.51.50217.51.29921.51.12825.50.98529.50.877
13.61.49617.61.29421.61.12425.60.98229.60.874
13.71.49117.71.2921.71.1225.70.97929.70.871
13.81.48617.81.28521.81.11625.80.97729.80.869
13.91.4817.91.28121.91.11225.90.97429.90.866

校正后流量=實測流量×對應于進水溫度的溫度校正系數(TCF值)。

美國海德能ESPA超低壓反滲透膜元件產水量的溫度系數

溫度℃00.10.20.30.40.50.60.70.80.9
51.9191.9121.9061.8991.8921.8861.8791.8731.8661.86
61.8531.8471.8411.8341.8281.8221.8151.8091.8031.797
71.791.7841.7781.7721.7661.761.7541.7481.7421.736
81.731.7241.7181.7121.7071.7011.6951.6891.6831.678
91.6721.6661.6611.6551.651.6441.6381.6331.0271.622
101.6161.6111.6061.61.5951.5891.5841.5791.5471.566
111.5631.5581.5531.5471.5421.5371.5321.5271.5221.517
121.5121.5071.5021.4971.4921.4871.4821.4771.4721.467
131.4361.4581.4531.4481.4431.4391.4341.4291.4251.42
141.4151.4111.4061.4011.3971.3921.3881.3831.3791.374
151.371.3651.3611.3561.3521.3481.3431.3391.3351.33
161.3261.3221.3171.3131.3091.3051.3011.2961.2921.288
171.2841.281.2761.2721.2661.2641.261.2551.2511.247
181.2441.241.2361.2321.2281.2241.221.2161.2121.208
191.2051.2011.1971.1931.1891.1861.1821.1781.1751.171
201.1671.1641.161.1561.1531.1491.1451.1421.1381.135
211.1311.1281.1241.1211.1171.1141.111.1071.1031.1
221.0971.0931.091.0861.0831.081.0761.0731.071.066
231.0631.061.0571.0531.051.0471.0441.041.0371.034
241.0311.0281.0251.02221.0181.0151.0121.0091.0061.003
2510.9970.9940.9910.9880.9850.9820.9790.9760.973
260.970.9670.9640.9610.9590.9560.9530.950.9470.944
270.9410.9390.9360.9330.930.9270.9250.9220.9190.916
280.9140.9110.9080.9060.9030.90.8970.8950.8920.89
290.8870.8840.8820.8790.8760.8740.8710.8690.8660.864
300.8610.8570.8560.8540.8510.8490.84860.8440.8410.839
310.8360.8340.8310.8290.8270.8240.8220.8190.8170.815
320.8120.810.8080.8050.8030.8010.7980.7960.7940.791
330.7890.7870.7850.7820.780.7780.7760.7730.7710.769
340.7670.7650.7620.760.7580.7560.7540.7520.7490.747
350.7450.7430.7410.7390.7370.7350.7330.730.7280.726
360.7240.7220.720.7180.7160.7140.7120.710.7080.706
370.7040.7020.70.6980.6960.6940.6920.690.6890.687
380.6850.6830.6810.6790.6770.6750.6730.6720.670.668
390.6660.6640.6620.660.6590.6590.6550.6530.6510.65
0.6480.6460.6440.6420.6410.6390.6370.6350.6340.632

韓國世韓CSM系列BE、BN、TN、TE級反滲透膜的溫度修正系數

Temp℃0.00.10.20.30.40.50.60.70.80.9
52.0932.0852.0772.0692.0602.0522.0442.0362.0282.020
62.0122.0041.9971.9891.9811.9731.9661.9581.9501.943
71.9351.9271.9201.9131.9051.8981.8901.8831.8761.868
81.8611.8541.8471.8401.8331.8261.8191.8121.8051.798
91.7911.7841.7771.7701.7631.7571.7501.7431.7371.730
101.7231.7171.7101.7041.6971.6911.6841.6781.6721.665
111.6591.6531.6461.6401.6341.6281.6221.6161.6101.603
121.5971.5911.5851.5791.5741.5681.5621.5561.5501.544
131.5391.5331.5271.5211.5161.5101.5041.4991.4931.488
141.4821.4771.4711.4661.4601.4551.4501.4441.4391.434
151.4281.4231.4181.4131.4071.4021.3971.3921.3871.382
161.3771.3721.3671.3621.3571.3521.3471.3421.3371.332
171.3271.3231.3181.3131.3081.3041.2991.2941.2891.285
181.2801.2761.2711.2661.2621.2571.2531.2481.2441.239
191.2351.2301.2261.2221.2171.2131.2091.2041.2001.196
201.1921.1871.1831.1791.1751.1711.1661.1621.1581.154
211.1501.1461.1421.1381.1341.1301.1261.1221.1181.114
221.1101.1061.1021.0981.0951.0911.0871.0831.0791.076
231.0721.0681.0641.0611.0571.0531.0501.0461.0421.039
241.0351.0321.0281.0241.0211.0171.0141.0101.0071.003
251.0000.9970.9930.9900.9860.9830.9800.9760.9730.970
260.9710.9680.9650.9620.9590.9560.9530.9510.9480.945
270.9420.9390.9370.9340.9310.9280.9260.9230.9200.918
280.9150.9120.9100.9070.9040.9020.8990.8960.8940.891
290.8880.8860.8830.8810.8780.8760.8730.8710.8680.866
300.8630.8610.8580.8560.8530.8510.8480.8460.8430.841
310.8380.8360.8340.8310.8290.8270.8240.8220.8190.817
320.8150.8120.8100.8080.8060.8030.8010.7990.7960.794
330.7920.7900.7870.7850.7830.7810.7790.7760.7740.772
340.7700.7680.7650.7630.7610.7590.7570.7550.7530.751
350.7480.7460.7440.7420.7400.7380.7360.7340.7320.730
360.7280.7260.7240.7220.7200.7180.7160.7140.7120.710
370.7080.7060.7040.7020.7000.6980.6960.6940.6920.690
380.6890.6870.6850.6830.6810.6790.6770.6750.6740.672
390.6700.6680.6660.6640.6630.6610.6590.6570.6560.654
400.6520.6500.6480.6470.6450.6430.6410.6400.6380.636

東麗反滲透膜、匯通源泉 VONTRON 反滲透膜的溫度校正系數

Temp℃0.00.10.20.30.40.50.60.70.80.9
52.1602.1512.1422.1342.1252.1172.1082.1002.0912.083
62.0752.0662.0582.0502.0422.0342.0252.0172.0092.001
71.9931.9861.9781.9701.9621.9541.9461.9391.9311.923
81.9161.9081.9011.8931.8861.8781.8711.8631.8561.849
91.8411.8341.8271.8201.8131.8051.7981.7911.7841.777
101.7701.7631.7561.7501.7431.7361.7291.7221.7161.709
111.7021.6961.6891.6821.6761.6691.6631.6561.6501.643
121.6371.6311.6241.6181.6121.6051.5991.5931.5871.581
131.5751.5681.5621.5561.5501.5441.5381.5321.5271.521
141.5151.5091.5031.4971.4921.4861.4801.4741.4691.463
151.4571.4521.4461.4411.4351.4301.4241.4191.4131.408
161.4031.3971.3921.3871.3811.3761.3711.3661.3601.355
171.3501.3451.3401.3351.3301.3251.3201.3151.3101.305
181.3001.2951.2901.2851.2801.2751.2701.2661.2611.256
191.2511.2471.2421.2371.2321.2281.2231.2191.2141.209
201.2051.2001.1961.1911.1871.1821.1781.1741.1691.165
211.1601.1561.1521.1471.1431.1391.1351.1301.1261.122
221.1181.1141.1101.1051.1011.0971.0931.0891.0851.081
231.0771.0731.0691.0651.0611.0571.0531.0491.0451.042
241.0381.0341.0301.0261.0221.0191.0151.0111.0071.004
251.0000.9970.9950.9920.9890.9870.9840.9820.9790.976
260.9740.9710.9690.9660.9630.9610.9580.9560.9530.951
270.9480.9460.9430.9410.9380.9360.9330.9310.9280.926
280.9240.9210.9190.9160.9140.9120.9090.9070.9040.902
290.9000.8970.8950.8930.8900.8880.8860.8830.8810.879
300.8770.8740.8720.8700.8680.8650.8630.8610.8590.856
310.8540.8520.8500.8480.8450.8430.8410.8390.8370.835
320.8320.8300.8280.8260.8240.8220.8200.8180.8160.813
330.8110.8090.8070.8050.8030.8010.7990.7970.7950.793
340.7910.7890.7870.7850.7830.7810.7790.7770.7750.773
350.7710.7690.7670.7650.7630.7610.7600.7580.7560.754
360.7520.7500.7480.7460.7440.7430.7410.7390.7370.735
370.7330.7310.7300.7280.7260.7240.7220.7210.7190.717
380.7150.7130.7120.7100.7080.7060.7050.7030.7010.699
390.6980.6960.6940.6930.6910.6890.6870.6860.6840.682
400.6810.6790.6770.6760.6740.6720.6710.6690.6670.666

校正后流量=實測流量×給水溫度對應的校正系數(上述表中的數據)

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