石灰石石膏法脫硫數(shù)據(jù)計(jì)算

1、石灰石-石膏法脫硫數(shù)據(jù)計(jì)算煙氣量計(jì)算：序號(hào)名稱符號(hào)單位計(jì)算公式或數(shù)值來(lái)源1理論空氣量V0Nm3/kg2燃燒產(chǎn)物理論體積Vy0Nm3/kgVN20+VRO20+VH2O01）氮?dú)釼N20Nm3/kg0.79V0+0.008Nar2）二氧化物VRO20Nm3/kg0.01866(Car+0.375Sar)3）水蒸汽VH2O0Nm3/kg0.111Har+0.0124Mar+0.0161V03燃燒產(chǎn)物實(shí)際體積Vy'Nm3/kgVy0+0.0161(alfa'-1)V0+(alfa'-1)V04干煙氣量Vgy'Nm3/kgVRO20+VN20+(alfa'-1)

2、V0煙氣含氧量和含濕量計(jì)算：序號(hào)名稱符號(hào)單位計(jì)算公式或數(shù)值來(lái)源1煙氣中的水分VH2O'Nm3/kgVH2O0+0.0161(alfa'-1)V02煙氣中的氧量VO2'Nm3/kg0.21(alfa'-1)V03干煙氣中含氧量ngo2'%VO2'/Vgy'濕煙氣中含氧量nsho2'%VO2'/Vy'濕煙氣中含濕量nH2O'%VH20'/Vy'濕煙氣中CO2含量nshCO2'%0.01866Car/Vy'干煙氣中CO2含量ngCO2'%0.01866Car/Vgy'

3、;濕煙氣中SO2含量nshSO2'%0.01866*0.375Sar/Vy'干煙氣中SO2含量ngSO2'%0.01866*0.375Sar/Vgy'濕煙氣中N2含量nshN2'%(0.79alfa'V0+0.008Nar)/Vy'干煙氣中N2含量ngN2'%(0.79alfa'V0+0.008Nar)/Vgy'總?cè)紵a(chǎn)物實(shí)際濕體積VtshyNm3/hVy'*Bj*1000總?cè)紵a(chǎn)物實(shí)際干體積VtgyNm3/hVgy'*Bj*1000總?cè)紵a(chǎn)物6%O2干體積Vtgy-O2Nm3/hVtgy*(21-

4、ngo2')/(21-6)煙氣含硫量及脫硫量計(jì)算：序號(hào)名稱符號(hào)單位計(jì)算公式或數(shù)值來(lái)源脫硫進(jìn)口SO2量Mkg/hBj*1000*Sy/100*0.7*64/22.41kmol/hM/64脫硫進(jìn)口SO2實(shí)際濃度Cso2mg/Nm3M/Vtshy（標(biāo)態(tài)，干基，6%O2）ppmCso2*22.41/64要求脫硫量Mskg/hM*n/100kmol/hMs/64吸收劑消耗量計(jì)算：序號(hào)名稱符號(hào)單位計(jì)算公式或數(shù)值來(lái)源石灰石(CaCO3)理論消耗量M3kmol/hMs/64*(Ca/S)kg/hM3*M1石灰石(CaCO3)實(shí)際消耗量kg/hM3*M1/(P/100)t/hM3'/1000脫硫

5、產(chǎn)物計(jì)算：序號(hào)名稱符號(hào)單位計(jì)算公式或數(shù)值來(lái)源CaSO4.2H2O生成量M4t/hMs/64*M10/1000脫硫產(chǎn)物中飛灰含量M5t/hm2*2/3引風(fēng)機(jī)出口飛灰總量m2t/hVtgy-o2*mh未反應(yīng)的CaCO3M6t/hM3/(ca/s)*(ca/s)-1)CaCO3帶入的雜質(zhì)M7t/hM3'*(1-P/100)脫硫產(chǎn)物總量M8t/hM4+M5+M6+M7皮帶機(jī)出口石膏產(chǎn)量M9t/hM8/0.9石膏純度n1%M4/M8總的脫硫產(chǎn)物量M8't/hM8皮帶機(jī)出口的石膏總產(chǎn)量M9't/hM9年石膏生成量t/年M9'*H脫硫耗水量：序號(hào)名稱符號(hào)單位計(jì)算公式或數(shù)值來(lái)源

6、脫硫結(jié)晶水Mgyct/hM4/M10*(2*18)石膏表面水Mgyst/hM9*0.1FGD廢水Mwwt/hBj*0.063%*1000+(Mgyc+Mgys+Mwe)*1000*0.000018-Vtgy*0.4*0.000001-M9*1000*0.01%)/0.02/1000脫硫蒸發(fā)水量Mwet/h清潔沖洗水Mgywt/h估計(jì)泵與風(fēng)機(jī)冷卻用水Mwqt/h估計(jì)單套脫硫裝置耗水量Mwt/hMgyc+Mgys+Mww+Mwe+Mgyw+Mwq總的脫硫裝置耗水量Mw't/hn*Mw氧化空氣量計(jì)算：序號(hào)名稱符號(hào)單位計(jì)算公式或數(shù)值來(lái)源需氧量Vo2kg/hSO2-1/2O2kmol/hVo2/

7、32需空氣量VkNm3/hVo2/32*22.41/0.21蒸發(fā)水量：序號(hào)名稱符號(hào)單位計(jì)算公式或數(shù)值來(lái)源1kg水蒸發(fā)需要熱量mshkj/kg(50-10)*4.18+2510脫硫反應(yīng)熱蒸發(fā)水量(CaCO3+SO2+1/2O2+H2O-CaSO4.2H2O+339kJ/mol)msh1t/hMs/64*339/msh煙氣降溫蒸發(fā)水量(未計(jì)放熱損失) 熱交換器放熱端: 126-t 吸熱端: 50-85 煙氣比熱 kcal/Nm3.100 kcal/Nm3.200i1kcal/Nm3.插值法: tpyi2插值法求85比熱t(yī)t=126-i2*(85-50)/i1i3kcal/Nm3.插值法: t塔內(nèi)煙

8、氣放熱量Q1kJ/hV ' * i3*4.18*(t-50)塔內(nèi)煙氣放熱蒸發(fā)水量msh2t/hQ1/msh單塔蒸發(fā)水量Mwet/hmsh1+msh2單塔蒸發(fā)水汽體積VweNm3/hMwe/18*106*22.4/1000主要參數(shù)匯總：序號(hào)名稱符號(hào)單位計(jì)算公式或數(shù)值來(lái)源吸收塔進(jìn)口煙氣量V'Nm3/h吸收塔出口煙氣量V"Nm3/hVtshy+Vk-Vo2+Vwe-Vso2脫水機(jī)出口石膏M9t/h含水10%旋流站出口石膏漿液量M11t/hM8/0.5(含水50%)石膏旋流站出口回流量M12t/hM13-M11-Mww(不包括廢水)吸收塔排出漿液量M13t/hM8/0.15(含水85%)石灰石粉耗量M3't/h工藝水量Mwt/h包括冷卻水等FGD廢水Mwwt/h主要設(shè)備選擇：序號(hào)名稱符號(hào)單位計(jì)算公式或數(shù)值來(lái)源煙氣流速m/s取值煙氣量Qm3/hV"*(273+50)/273脫硫塔直徑Dm2*（Q/3.14/3600)0.5液氣接觸時(shí)間Ss取值吸收段高度Hm*S液氣比L/G取值漿液循環(huán)量