無(wú)組織排放廢氣量的計(jì)算詳解

1、無(wú)組織排放廢氣量的計(jì)算集中式排放計(jì)算是不同的，現(xiàn)加以介紹。有害物質(zhì)敞露存放的散發(fā)量計(jì)算蒸氣，其散發(fā)量可用下列公式計(jì)算：Gs（5.38+4.1V）P （M）0.5H式中，Gs有害物質(zhì)的散發(fā)量，g/h； V車間或室內(nèi)風(fēng)速，m/s；PH有害物質(zhì)在室溫時(shí)的飽和蒸氣壓力，mmHg； F有害物質(zhì)的敞露面積，m2；M有害物質(zhì)的分子量； 5.38、4.1常數(shù)。如下：lgP=（-0.05223A/T）+BH式中，T有害物質(zhì)的絕對(duì)溫度，K；AB5-144A、B物質(zhì)名稱分子式物質(zhì)名稱分子式AB苯CH6 6341727962甲烷CH485166863甲醇CHOH3393248802醋酸甲酯CHCOOCH3346150

2、8715四氯化碳CCl4339148004甲苯CHCH6 53391938330醋酸乙酯CHCOOCH32 5511039010乙醇CHOH2 5230257720乙醚CHOCH2 52 5467749135液體（除水以外）蒸發(fā)量的計(jì)算計(jì)算公式如下：Gz=M（0.000352+0.000786V）PF式中，Gz液體的蒸發(fā)量，kg/h；M液體的分子量；Vm/s5-1450.2-0.5；PmmHg。當(dāng)液體濃度（重量）10%5-14610%5-147、5-148、5-149、5-150。F液體蒸發(fā)面的表面積，m3。表5-145槽邊排風(fēng)工藝槽產(chǎn)生有害氣體計(jì)算參數(shù)工藝槽名稱溶液名稱主要成分含量（g/L）

3、溶液溫度（）液面風(fēng)速（m/s）硫酸浸蝕硫酸50-25040-800.35鹽酸浸蝕鹽酸150-36010-350.30硝酸浸蝕硝酸40%-80%室溫0.40銅及銅合金在硝酸硝酸10%-50%室溫0.40和硫酸中浸蝕硫酸40%-60%0.40鑄件浸蝕硫酸75%室溫0.40氫氟酸25%混酸浸蝕硝酸20%室溫0.40氫氟酸30%混酸浸蝕硝酸50-100室溫0.35鹽酸150-200磷酸浸蝕80-12060-80裝飾鍍鉻鉻酐250-36040-500.40硫酸2.5-3.5鍍硬鉻鉻酐180-25055-600.50硫酸1.8-2.5鍍鋁錫合金硼氟酸60-100室溫硼氟酸鉛160-2000.40硼氟酸錫2

4、0-25氟硼酸鹽氟硼酸鉛250-3000.40鍍鉛氟硼酸60-120鋼鑄件退鎳鉻酸250-30020-280.35硼酸25-30鋁合金硫酸陽(yáng)極化硫酸100-20013-260.30鋁合金鉻酸陽(yáng)極化鉻酸35-4040+（-）20.35鋼鐵件化學(xué)拋光硝酸1%-4%硫酸20%-40%70-800.40鹽酸7%-30%銅和銅合金化學(xué)拋硝酸10%-15%光磷酸50%-60%40-600.40醋酸30%-40%鎳的電拋光硫酸70%-80%室溫0.35鉻酐3%-5%表5-146硫酸溶液蒸氣分壓力（mmHg）濃度溫度（）（%）102030405060708090108.8016.7730.4252.8788.

5、44142.83223.42339.47502.67208.0515.4428.0048.7781.59131.92206.59314.26465.86257.4614.4526.2845.8676.88124.45195.14297.57441.67306.9113.1623.9941.9370.49114.44179.95277.85409.07356.2311.5821.1937.2362.81103.34161.49247.86370.16405.229.8418.1131.9254.1288.95140.45216.26324.42454.198.0014.8326.2844.877

6、3.80117.79184.17274.27503.196.1711.5220.6325.4358.8694.65147.37223.99552.264.448.3715.1626.3744.2271.52112.57171.94601.462.825.449.9617.5829.8848.8477.77119.88650.801.613.216.0910.9218.9731.5551.1379.92700.340.591.312.665.009.2615.8926.3643.12756.130.280.581.142.203.987.0212.0020.00800.040.080.180.3

7、80.771.482.684.778.30濃溫度（）度2030405060708090PPP濃溫度（）度2030405060708090PPPPPPPPPPPPPPPP硝水硝水硝水硝水硝水硝水硝水硝水100.08.20.07.10.05.80.124.20.413.01.582.2041.2110.0200.015.20.013.20.010.80.277.90.845.63.004.1082.4200.0300.027.60.023.80.1719.50.564.41.6610.35.507.40144361.3400.047.50.11410.3633.51.1325.03.1013.19

8、.6512.8024.57622.4500.080.00.25690.75562.1842.55.6831.016.521.804121034.0600.131280.511131.48904.0570.09.95127.135.3067201576.5700.272001.001742.801437.2511016.88143.3561063123210.0800.533071.872675.1021812.517027.512667.5861534833816.0901.014583.383939.032520.925843.719210313023073480241001.876756.

9、0558015.548034.238369.528515219233010867535注：濃度為重量濃度濃溫度（）表5-148HCl 水溶液液面上水蒸氣和HCl 氣體分壓（mmHg濃溫度（）度0度015202530405060PPPPPPPPPPPPPPPPPHClH2OHClH2OHClH2OHClH2OHClH2OHClH2OHClH2OHClH2O100.03.840.00210.70.00414.60.007200.01126.800.028470.0780.00.16130140.03.390.0129.650.01913.10.032180.05024.10.1242.10.287

10、2.00.60116180.02.870.068.260.09511.30.14815.40.22820.60.5236.41.1162.52.30102220.072.330.2946.750.459.30.6812.61.0217.12.1030.24.4252.08.6085.6260.411.761.475.212.177.213.209.954.5613.59.224.017541.53.2569281.01.503.364.544.906.327.058.579.9011.819.121.035.736.56460.71302.41.267.63.8810.65.4115.17.5

11、221.011.239.418.47132.012453.52325.71.0416.83.2523.54.5532.56.3744.508.78115.714127.723846.533413.10.8536.82.7050.53.8168.55.35927.2316113.527324.045040.573629.00.68782.191053.101424.411886.0832211.453520.486034.8/3863.00.561581.752102.512773.603605.035989.595517.4/29.6/40130.00.413071.373992.005152

12、.886274.09/7.9/14.5/25.0/422530.315601.067091.569002.30/3.28/6.5/12.1/21.1/表5-149HF水溶液液面上HF和H2O蒸氣分壓力（mmHg）濃度溫度（）25406075PPPPPPPPH2OHFH2OHFH2OHFH2OHF10220.27500.611371.82654.020180.67411.91155.520011.630132.0304.58514.216027.0注：濃度為重量濃度表5-150水溶液的蒸氣壓（mmHg）溫度壓力溫度壓力溫度壓力溫度壓力溫度壓力（）（）（）（）（）1.9281512.7872930

13、.43364.807129.8225.2941613.6343031.8244468.2658136.0835.6851714.5303133.6954571.8859142.6046.1011815.4773235.6634675.6560149.3856.5431916.4773337.7294779.6061156.4367.0132017.5353439.9894883.7162163.7777.5132118.6503542.1754988.0263171.3888.0452219.8273644.5635092.5164179.3198.6092321.0683747.067519

14、7.2165187.54109.92092422.3773849.69252102.0966196.09119.8442523.7563952.44253107.2067204.961210.5182625.2094055.32454112.5168214.171311.2312726.7394158.3755118.041411.9872828.3494261.5056123.80生產(chǎn)設(shè)備和管道不嚴(yán)密處的散發(fā)量用期增大而增大。有害氣體的泄漏量一般可采用下式計(jì)算：Gc=KCV（M/T）0.5式中，Gc設(shè)備或管道不嚴(yán)密處的散發(fā)量，kg/h； KC5-151； V設(shè)備和管道的內(nèi)部容積，m3； M設(shè)

15、備和管道內(nèi)的有害氣體和蒸氣的分子量； T設(shè)備和管道內(nèi)部的有害氣體和蒸氣的絕對(duì)溫度，K。表5-151不同壓力時(shí)的系數(shù)C 值壓力（絕對(duì)大氣壓）22717411614011001系數(shù) C0.210.1660.1820.1890.250.290.310.37油漆物件表面的散發(fā)量一般在油漆時(shí)都要用各種有機(jī)溶劑（如汽油、苯、甲苯等）作為稀料，因此在油漆完后，物件在自然干燥過(guò)程中，全部有機(jī)溶劑將從物體表面揮發(fā)散出，其散發(fā)量常用下列公式計(jì)算：G=ME式中，G油漆作業(yè)點(diǎn)的油漆揮發(fā)量，kg/a； M全年油漆用量，kg/a； E油漆揮發(fā)量，kg/1000kg5-152油漆代號(hào)油漆類別有機(jī)溶劑揮發(fā)量表油漆代號(hào)油漆類別有機(jī)溶劑揮發(fā)量重量（kg/t 油漆）體積（m3/t 油漆）Y油脂漆類7111