CFB脱硫计算书

序号名称计算依据单位备注1入口烟气量Nm3/h439806002入口烟气温度℃1201201203SO2原始浓度mg/Nm330002002004SO2排放浓度mg/Nm33030305脱硫效率%99.085856钙硫比1.2-1.51.51.31.37CaO耗量kg/h1142.90.00.08Ca(OH)2耗量kg/h1510.30.00.09CaCO3耗量kg/h2041.00.00.010Na2CO3耗kg/h2163.40.00.011降温水压力MPa0.40.40.412降温水温℃20202013降温水焓kj/Nm384.384.384.314当地大气压Pa100220.0100220.0100220.015CFB脱硫塔阻力Pa2500.02500.02500.016原始烟气绝对压力Pa97720.097720.097720.017原始烟气水蒸汽份额%8.010.010.018减温水喷入增加的水蒸汽份额先假设，后校核%12.011.111.119原始烟气水蒸汽份额%20.021.121.120原始烟气中水蒸汽分压力Pa19526.220637.620637.621原始烟气中水蒸汽饱和温度℃59.560.760.722CFB脱硫塔出口水蒸汽过热度一般取20-30℃℃20.020.020.023CFB脱硫塔出口烟温℃79.580.780.724CFB脱硫塔出口水焓kj/kg2646.92649.02649.025脱硫塔入口烟焓kj/Nm3158.8158.8158.826脱硫塔出口烟焓kj/Nm3105.0106.6106.627降温水总耗量m3/h9.20.00.028降温水汽化后水蒸汽体积m3/h76687.50.00.029烟气中水蒸汽新增体积份额%12.0#DIV/0!#DIV/0!30水蒸汽份额平衡校核%0.0#DIV/0!#DIV/0!31浆液浓度%100.010.010.032浆液喷枪中水流量m3/h0.000.000.0033工艺水喷枪中水流量m3/h9.20.00.034脱硫塔塔径mm7500.07200.06500.035脱硫塔烟气流速一般取4-6m/sm/s4.10.00.0数值36烟气停留时间一般要求大于5-7s6.06.06.037脱硫塔高度m24.60.00.038脱硫塔文丘里段直径mm800.0800.0800.039脱硫塔文丘里个数个7.07.07.040脱硫塔文丘里段烟气流速一般取40m/sm/s45.30.00.041脱硫塔文丘里前段直径mm4500.04800.04200.042脱硫塔文丘里前段流速m/s11.20.00.043原始烟尘浓度mg/Nm330.0100.0100.044达标排放烟尘浓度mg/Nm310.010.010.045除尘效率%66.790.090.046除尘器除尘量kg/h8.80.00.047灰的堆积密度kg/m31200.01200.01200.048灰库存储天数天7.07.07.049灰库的体积m31.20.00.050灰库直径m1.83.04.051灰库高度m0.60.00.052CaO的堆积密度kg/m32200.02200.02200.053CaO粉仓存储天数一般按2-4天天4.04.04.054CaO粉仓的体积m358.70.00.055CaO粉仓直径m5.06.67.656CaO粉仓高度m7.90.00.057Ca(OH)2的堆积密度kg/m32200.02200.02200.058Ca(OH)2粉仓存储天数一般按1-2天天2.02.02.059Ca(OH)2粉仓的体积m333.00.00.060Ca(OH)2粉仓直径m3.03.03.061Ca(OH)2粉仓高度m5.50.00.062脱硫塔内粉尘浓度800-1000g/Nm3g/Nm31500.01000.01000.063空气斜槽输送量t/h659.70.00.064空气斜槽个数个2.01.01.065单个空气斜槽需要输送量t/h329.90.00.066单个空气斜槽宽度一般为150/175/200m0.150.150.1567灰层厚度可取0.1m-0.15mm0.100.150.1568空气斜槽水力径m0.0430.0500.05069空气斜槽的斜度不小于6%%6.06.06.070空气斜槽内灰的输送速度m/s11.512.812.871灰的堆积密度t/m31.21.21.272流动状态时灰的密度t/m30.90.90.973单个空气槽实际输送量t/h505.2839.8839.874单个空气斜槽输送量校核正值表示设计可以满足要求%3510010075空气斜槽单位耗气量一般选1.5-2.53/(min.m2.52.52.576斜槽长度由结构知m15.015.015.077单位斜槽的总耗气量Nm3/min66678NOx原始浓度mg/Nm320020020079NOx排放浓度mg/Nm350505080氧化剂NaClO2消耗量（脱硫用）+NaClO2+2H2O→2H2SOkg/h4620081氧化剂NaClO2消耗量（脱硝用）NaClO2+2NO→2NO2+NaCl2NO2+NaClO2+Ca(OH)→kg/h82氧化剂NaClO2总消耗量kg/h4620083NaClO2溶液配制浓度%15151584NaClO2溶液消耗量kg/h307700851344.640.000.000.0938