压力管道强度校核计算表优质资料.doc

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1、压力管道强度校核计算表优质资料(可以直接使用，可编辑 优质资料，欢迎下载）DATA SHEET OFSTRENGTH工程名称：项目号：版次：设计单位：项目负责：设计：校核： 工业及热力管道壁厚计算书1直管壁厚校核1.1计算公式：根据工业金属管道设计规范（GB50316-2000）6.2中规定，当直管计算厚度ts小于管子外径Do的1/6时，承受内压直管的计算厚度不应小于式（1）计算的值。设计厚度tsd应按式（2）计算。 （1） （2） （3） 式中 直管计算厚度（mm）；设计压力（MPa）；管子外径（mm）；在设计温度下材料的许用应力（MPa）；焊接接头系数；直管设计厚度（mm）；厚度附加量之和

2、（mm）；厚度减薄附加量（mm）腐蚀或腐蚀附加量（mm）计算系数设计压力P：P=2t/（D-2tY）Y=0.4-0Cr18Ni9式中设计温度为常温，一般取50，根据工业金属管道设计规范（GB50316-2000）附录A金属管道材料的许用应力表进行选取，故20#为130MPa，0Cr18Ni9为128.375 MPa。取值是根据压力管道规范-工业管道 第2部分：材料 （GB/T20801.2-2006）表A.3，故20#和0Cr18Ni9的取值都为1。根据工业金属管道设计规范（GB50316-2000）表进行选取，故20#和0Cr18Ni9的取值都为0.4。1.2常用低压管道计算厚度1.3常用高

3、压管道计算厚度1.4厚度附加量(1).C1厚度减薄附加量（mm），取钢管允许厚度负偏差。根据流体输送用不锈钢无缝钢管（GB/T14976-2002）规定：热轧（挤、扩）钢管壁厚15mm时，普通级允许厚度负偏差（12.5%）高级允许厚度负偏差（12.5%）；热轧（挤、扩）钢管壁厚15mm时，普通级允许厚度负偏差（15%）高级允许厚度负偏差（12.5%）；冷拔（轧）钢管壁厚3mm时，普通级允许厚度负偏差（14%）高级允许厚度负偏差（10%）；冷拔（轧）钢管壁厚3mm时，普通级允许厚度负偏差（10%）高级允许厚度负偏差（10%）。根据输送流体用无缝钢管（GB/T8163-2021）规定：热轧（挤压、

4、扩）钢管外径102mm时，允许厚度负偏差（12.5%或0.40中较大值）；热轧（挤压）钢管外径102mm时，当壁厚和外径的比值0.05时，允许厚度负偏差（15%或0.40中较大值）0.050.10时，允许厚度负偏差（12.5%或0.40中较大值）0.10时，允许厚度负偏差（10%）；冷拔（轧）钢管壁厚3mm时，允许厚度负偏差（10%或0.15中较大值）；冷拔（轧）钢管壁厚3mm时，允许厚度负偏差（10%）。综上所述，考虑到CNG站用钢管基本上为冷拔（轧）钢管，故厚度负偏差应按照上面规定根据钢管材质选择。(2).C2腐蚀附加量（mm），20#钢管的腐蚀裕量参照钢制对焊管件规范（SY/T0510-

5、1998）取1.5mm，0Cr18Ni9钢管的腐蚀附加量一般为0mm。1.5常用管道的设计厚度钢管的公称壁厚大于设计壁厚，故所选钢管的壁厚符合要求。2弯管壁厚校核2.1计算公式根据压力管道规范-工业管道 第3部分：设计和计算 （GB/T20801.3-2006）6.2规定：内压弯管的计算厚度（位于处，最危险处）应按式（4）计算： （4）当计算弯管的内侧厚度时： （5）当计算弯管的外侧厚度时： （6）式中 弯管（内、外侧）的计算厚度（mm）；弯管的转角（度）；计算系数；弯管在管子中心线处的弯曲半径（mm）；2.2弯曲半径根据工业金属管道工程施工及验收规范（GB50235-97）中规定：高压钢管的

6、弯曲半径大于管子外径的5倍，其他管子的弯曲半径宜大于管子外径的3.5倍。对于一些在工厂内加工的弯管，最小可以使R=1.5Do，而在一般情况下R3Do，故在计算中选用R=1.5Do和R=3Do两种情况，因为只要这两种情况下的设计壁厚可以符合要求，其他情况下的设计壁厚就都是符合要求的。2.3常用弯管的设计厚度弯管的公称壁厚大于设计壁厚，故所选壁厚符合要求。热力管道水力计算表（一）Kd=0.5mm r=958.4kg/m3DN25324050DN2532405070Dw3225382.5452.5573.5Dw322.5382.5452.5573.5733.5G(t/h)WRWRWRWRG(t/h)

7、WRWRWRWRWR0.20.10.951.250.6334.20.4211.60.294.20.181.340.220.111.141.30.66370.4412.60.34.510.191.440.110.340.240.121.351.350.6839.90.4613.60.314.860.21.550.110.370.260.131.591.400.7142.90.4714.60.325.210.211.670.120.390.280.141.821.450.73460.4915.70.335.590.211.780.120.420.300.152.081.500.7649.20.51

8、16.80.355.980.221.910.130.450.320.162.371.550.7952.60.5317.90.366.380.232.020.130.480.340.172.711.60.81560.5419.10.376.80.242.140.130.50.360.182.971.650.8459.60.5620.30.387.230.242.260.140.550.380.193.31.70.8663.20.5821.50.397.680.252.40.140.580.400.203.651.750.89670.5922.80.48.140.262.530.150.610.4

9、20.214.01.80.9170.90.6124.10.428.610.272.660.150.640.440.224.381.850.9474.90.6325.50.439.090.272.810.150.670.460.234.751.90.96790.6426.90.449.590.282.960.160.710.480.245.151.950.9983.20.6628.30.4510.10.293.10.160.74热力管道水力计算表（二）Kd=0.5mm r=958.4kg/m3DN25324050DN2532405070Dw3225382.5452.5573.5Dw322.538

10、2.5452.5573.5733.5G(t/h)WRWRWRWRG(t/h)WRWRWRWRWR0.500.255.550.171.950.120.721.0187.50.6829.80.4610.60.33.250.170.780.550.286.660.192.350.130.852.11.0696.50.7132.60.4811.70.313.550.180.860.600.37.850.22.80.141.012.21.11105.90.75360.5112.90.333.690.190.950.650.338.190.223.260.151.182.30.7839.40.5314.1

11、0.344.270.21.020.700.3510.70.243.770.161.370.10.442.40.8142.90.5515.30.354.640.211.110.750.3812.30.254.310.171.570.110.52.50.8546.50.5816.60.375.040.211.210.800.41140.274.860.181.770.120.572.60.8850.30.6180.385.450.221.30.850.4315.80.295.450.220.130.652.70.9254.50.6219.40.45.880.231.40.900.461.770.3

12、16.080.212.220.130.722.80.9558.40.6520.80.416.320.241.450.950.4819.70.326.730.222.480.140.82.90.9862.60.6722.30.436.780.241.581.00.5121.90.347.450.232.720.150.8831.02670.6923.90.447.260.251.71.050.5324.10.368.210.242.990.161.013.11.0571.60.7225.50.467.750.261.851.100.5626.50.379.010.253.290.161.053.

13、21.0976.30.7427.20.478.260.271.931.150.5828.90.399.850.273.580.171.143.31.1281.10.7628.90.498.780.282.041.200.61320.4110.70.283.870.181.243.41.1586.10.7830.70.59.320.282.18热力管道水力计算表（三）Kd=0.5mm r=958.4kg/m3DN40507080100125150175DW452.5573.5733.5893.51084133415941946G(T/h)WRWRWRWRWRWRWRWR3.50.8132.60.

14、529.880.292.290.190.710.130.273.60.8334.40.5310.40.32.420.20.750.130.283.70.8536.40.55110.322.540.20.790.140.293.80.8838.40.5611.60.322.680.210.830.140.313.90.940.40.5812.30.332.80.210.880.140.334.00.9242.50.5912.90.342.940.220.920.150.344.20.9746.90.6214.20.363.120.231.010.160.384.41.0251.40.6515.6

15、0.373.540.241.110.160.410.10.134.61.0656.20.6817.10.393.870.251.210.170.450.110.144.81.1161.20.7118.60.44.20.261.320.180.490.110.1551.1566.40.7420.20.434.560.271.430.180.530.120.175.21.271.90.7721.80.444.940.291.540.190.570.120.185.41.2577.50.823.50.465.330.31.660.20.610.130.195.61.2983.30.8325.70.4

16、75.730.311.780.210.650.130.25.81.3489.40.8627.10.496.130.321.910.210.650.140.22热力管道水力计算表（四）Kd=0.5mm r=958.4kg/m3DN40507080100125150175DW452.5573.5733.5893.51084133415941946G(T/h)WRWRWRWRWRWRWRWR61.3995.70.86290.516.570.332.040.220.750.140.236.21.43102.10.92310.527.020.342.220.230.80.150.256.40.95330

17、.547.480.352.370.240.850.150.266.60.9835.10.567.950.362.520.240.90.160.286.8137.30.588.440.372.680.250.950.160.3171.0339.50.598.950.382.840.261.010.170.327.51.1145.40.6310.30.413.260.281.150.180.378.01.1851.60.6811.70.443.70.31.30.190.428.51.2658.30.7213.20.474.180.311.460.20.4791.3365.30.7614.70.49

18、4.690.331.640.210.529.51.472.80.8116.50.525.220.351.820.220.58101.4880.60.8518.30.555.790.372.020.240.6410.51.5588.90.8820.10.586.380.392.220.250.7111.6397.60.93220.670.412.440.260.7711.51.7106.60.9824.20.637.650.422.670.270.84热力管道水力计算表（五）Kd=0.5mm r=958.4kg/m3DN40507080100125150175DW452.5573.5733.58

19、93.51084133415941946G(T/h)WRWRWRWRWRWRWRWR121.0126.30.668.330.442.910.280.90.20.3612.51.0628.50.699.040.463.150.30.980.210.39131.1330.80.719.780.483.410.311.060.210.4213.51.1533.30.7410.50.53.680.321.130.220.45141.1935.80.7711.30.523.960.331.210.230.4814.51.2238.40.812.20.544.240.341.30.240.51151.26

20、410.82130.554.540.351.390.250.550.170.2161.3546.70.8814.80.595.170.381.580.260.620.180.23171.4452.80.9316.70.635.830.41.790.280.690.190.26181.35590.9918.80.666.540.432.010.30.770.20.29191.6661.0420.90.77.290.452.230.310.850.210.32201.7731.123.20.748.080.472.480.330.950.220.35211.7880.51.1525.50.788.

21、90.52.730.341.040.230.39221.8688.31.21280.819.770.5230.361.140.250.42231.9496.61.2630.60.8510.70.543.270.381.250.260.46热力管道水力计算表（六）Kd=0.5mm r=958.4kg/m3DN7080100125150175200250DW733.5893.5108413341594.5194621962737G(T/h)WRWRWRWRG(T/h)WRWRWRW242.03105.21.3233.30.8911.60.573.570.391.360.270.5252.12114

22、.21.3736.20.9212.60.593.870.411.470.280.54262.2123.31.4339.10.9613.60.624.190.431.60.290.59272.281331.4842.2114.70.644.510.441.720.30.63281.5445.41.0315.80.664.850.461.850.310.68291.5948.71.07170.695.210.481.990.320.72301.6552.11.1118.20.715.570.492.120.330.77311.755.61.1519.40.735.950.512.270.350.8

23、2321.7659.31.1820.70.766.340.532.420.360.87331.81631.22220.786.740.542.570.370.93341.8766.91.1623.30.87.160.562.730.380.98351.9270.91.2924.70.837.580.572.890.391.04361.98751.3326.20.858.020.593.060.41.1372.0379.21.3727.60.878.480.613.230.411.16382.0983.61.429.20.98.940.623.410.421.23热力管道水力计算表（七）Kd=0

24、.5mm r=958.4kg/m3DN7080100125150175200250DW733.5893.5108413341594.5194621962737G(T/h)WRWRWRWRG(T/h)WRWRWRW391.4430.70.929.420.643.590.431.290.340.660.210.22401.4832.30.959.910.663.780.451.360.350.690.220.23411.5133.90.9710.40.673.970.461.430.350.720.230.24421.5535.60.9910.90.694.160.471.50.360.760.2

25、30.25431.5937.51.0211.40.714.360.481.570.370.80.240.26441.6339.11.04120.724.570.491.650.380.830.240.27451.6640.91.0612.50.744.780.51.720.390.870.250.29461.742.71.0913.10.764.990.511.80.40.910.250.3471.7444.61.1113.70.775.210.521.880.410.950.260.31481.7746.51.1314.30.795.440.541.960.410.990.260.32491

26、.8148.51.1614.90.85.670.552.040.421.040.270.34501.8550.51.1815.50.825.900.562.130.431.080.280.35521.9254.61.2316.70.856.380.582.30.451.170.290.38541.9958.91.2818.10.896.880.62.480.471.260.30.41562.0763.31.3219.40.927.400.622.670.481.350.310.44热力管道水力计算表（八）Kd=0.5mm r=958.4kg/m3DN7080100125150175200250

27、DW733.5893.5108413341594.5194621962737G(T/h)WRWRWRWRG(T/h)WRWRWRW582.1467.91.3720.80.957.940.652.860.51.450.320.46602.2272.71.4222.30.988.500.673.060.521.550.330.49622.2977.61.4723.81.029.070.693.270.531.660.340.51642.3682.71.5125.41.059.670.713.480.551.770.350.54662.4487.91.56271.0810.30.743.70.571

28、.880.360.58682.5193.41.6128.61.1210.90.763.930.591.990.370.61702.5998.91.6530.31.1511.60.784.170.62.110.390.65722.66104.71.732.11.1812.20.84.410.622.230.40.69741.7533.91.2112.90.834.660.642.360.410.72761.835.81.2513.60.854.910.662.490.420.76781.8437.71.2814.40.855.170.672.620.430.81801.8939.61.3115.

29、10.895.440.692.760.440.85852.0144.71.417.10.956.140.733.110.470.96902.1350.11.4819.116.890.783.490.51.07952.2555.91.5621.31.067.670.823.890.521.19热力管道水力计算表（九）Kd=0.5mm r=958.4kg/m3DN125150200250300350400400450500Dw13341594.5219627373258377942610426647865297G(t/h)WRWRWRWRWRWRWRWRWRWR1002.3661.91.6423.

30、60.864.310.551.320.390.520.290.250.220.130.220.121052.4868.31.72260.914.750.581.460.410.580.30.270.240.140.230.131102.674.91.8128.60.955.220.611.60.430.630.320.30.2650.160.240.141152.7281.91.8931.20.995.70.631.750.440.690.330.320.260.170.250.151202.8489.11.97341.036.210.661.910.460.750.340.340.270.190.260.171252.9596.72.0536.91.086.740.692.070.480.820.360.370.280.20.270.181303.07104.62.1339.91.127.290.722.240.50.880.370.40.290.220.280.21352.22431.167.860.742.410.520.950.390.430.30.230.290.211