鄰苯二甲酸二辛酯生產(chǎn)車(chē)間初步工藝設(shè)計(jì)論文

題目：年產(chǎn)8萬(wàn)噸鄰苯二甲酸二辛酯生產(chǎn)車(chē)間初步工藝設(shè)計(jì)的通用增H2438424384continuousesterificationtechnology,thecaThedesignfollowsthe"maturetechnology,advancedtechnology,equipmentconfigurationscientific,environmentalprocessandequipmentcphthalicanhydrideandiso-octanolafteresterification,defacilitiesandprocessselection,withaflowchartwithcontrolreductionofthe"threewastwastes"treatment,toensuresafeprodKeyword:DOPEthylhexanolPhthalicProcessDesign 7 7 7 7 7 82令設(shè)計(jì)的目的和意義 8 8 8 8 9 9 9 9 10 10 11 11 11 12 12 13 13 13 14 14 14 16 17 18 19 19 20 20 21 22 23 23 23 23 23 24 25 26 27 28 28 28 29 29 30 31 31 31 31 31 31 35令1令在學(xué)習(xí)掌握所學(xué)的化學(xué)工藝學(xué)、化工機(jī)械設(shè)備基礎(chǔ)、化工原理等課程的3令項(xiàng)目設(shè)計(jì)依據(jù)和原則令1令按技術(shù)先進(jìn)、成熟可靠、經(jīng)濟(jì)合理的原則對(duì)技術(shù)方案進(jìn)行論證令以確定最令2令盡可能采用節(jié)能工藝和高效設(shè)備令充分發(fā)揮規(guī)模效應(yīng)令降低能耗、物耗和令3令考慮“三廢”治理和綜合利用副產(chǎn)物令充分重視環(huán)保防污、科學(xué)生產(chǎn)、生令1令工藝生產(chǎn)方法確定、生產(chǎn)流程設(shè)計(jì)與論證令2令工藝計(jì)算令包括物料衡算令熱量衡算令令5令設(shè)計(jì)繪圖酸度令以對(duì)苯二甲酯計(jì)令%≤體積電阻率令×10?.m≥優(yōu)級(jí)品一級(jí)品合格品透明液體令無(wú)懸浮物99.099.5099.500.981令0.9860.01520.0200.2512aOH設(shè)測(cè)定回流比為2.5令設(shè)回流異辛醇量Xkmol則出釜異辛醇為2.5Xkmol2水表4令一級(jí)酯化段物料衡算表量令kmol/h令26.9680.8600066.6733.33令%令令%令量令kmol/h令53.9026.960.320.3221600C/kJ/(mol.k)0.28560.2559C/kJ/(mol.k)C0.28290.5347/()0.4935J/mol-373.2鄰苯二甲酸一辛酯0.45230..34540.31550.2694-672.6-1120.6注令A(yù)------苯酐令B-----異辛醇;C------鄰苯二甲酸一辛酯A=nACp,mAΔT=10.12×269.4×[(150?30)+273.15]=1.072×10kJ6Q=nCΔT=32.05ΔH=q6A(l令423.15K)+B(l,423.15K)ΔH7C(ΔHΔΔHΔHΔHΔΔH=nCΔT=?10.12×269.4×(423.15?404.75)=ΔH=nΔH=nCΔT=?32.05×311.5×(423.15?298.15)=?1.248×106ΔH=n(ΔfHm?ΔH?ΔH)=10.12(?1120.6+672.6+373.ΔH=nΔCΔT=10.12×493.5×(423.15?298.15)=0.6246所以令ΔH=ΔH+ΔH+ΔH+ΔH+ΔH+ΔH=?1.73×10kJ/h2p00.7960.121553995.2504.5055.2953723.124104.18200.746液體比熱容KJ/(kg.℃)61.992.2941031513.6水40.694.1785.29215250.122AAV=Qt令1+η令3316-11 =1.005g/m3W=1.005×1×9.81×2.43+0.1015×1000000=0.125MPa2cd=1.46mm+2mmd1低粘度混合○≤0.9Φσ有令0.9Φσs=0.9×1.0×200M= T攪拌器環(huán)粘渦式槳式推式折葉開(kāi)渦輪式流動(dòng)狀態(tài)○○○○○○○度液傳熱○○攪拌目的攪拌容轉(zhuǎn)速X)最高度OOOOO0O00布爾馬金式錨式螺桿式螺帶式OO1令100300OOOOOOOOOO注令有O者為合用令空白者不詳或不合用。輪式攪拌器。由《化工原理》上冊(cè)教材中表4ibp6.3x1.005x1.2x03.73x100=2268Wpj44j=0.11×0.76×10/.2=380W/(m.Co/Dc))λ/De3ecRe=Duρ/μ=0.4×0.78×992.2/0.000656=0.47×10e5(60.8-50.334α=55.38×63.38/0.4=8775.1W/(m.C)2om設(shè)計(jì)計(jì)算數(shù)據(jù)及選型設(shè)計(jì)計(jì)算數(shù)據(jù)及選型六片平直葉圓盤(pán)渦輪式攪拌器0.2mdc器攪拌槳葉數(shù)攪拌功率擋板數(shù)擋板寬度攪拌釜全容積令不包括封頭部分令液面深度攪拌釜實(shí)際高度攪拌釜內(nèi)經(jīng)工作壓力攪拌釜厚度夾套形式螺旋板螺距夾套環(huán)隙夾套內(nèi)冷卻水流速冷卻水每小時(shí)移出熱量被攪拌液體側(cè)的對(duì)流傳熱系數(shù)zNnbwVhHDiPTδnPEuQ663螺旋板夾套α8775.1W/(m2.α8775.1W/(m2.oC)370.4W/(m.C)370.4W/(m.C)0065)(7025)Δ=初步假設(shè)采用單殼程令偶數(shù)管的固定板換熱器經(jīng)查表Ψ=0.88>0.8所以假設(shè)可行令采用單殼程令偶數(shù)管的固定板換熱器Δtm=ΨΔtm逆=0.88x72.4=63.7℃ΔTm令=515.18/令63.7x370.4令=21.83m2公稱(chēng)面積令㎡令0.0083管子尺寸令mm令25x2.5pT管子排列方式正三角形/N=π/4x0.02x2106/4100000025510?34ix0xx230.02ΔPix230.02ΔPi=(λx20+)fNi0.8u2i2ix(223.9x0.35x10-)30.312.)iild∴i3600ρ0S03600x992.2x0.01333πd0π×0.025且4x0.000656cμ4.==4.32x1005cμ4.3 00.55)00.55=令=所以1.OR0μμ1=0.36x0.0202x8250x0.0000432x1.05=6135.53W/(m2.C)令0.553′0B-0.190ΔP0x190.45x(22+1)=1.72x8250-0.19u2×u2×00.41xx=0=7.6.41xx=0=7.6x1022③計(jì)算傳熱面積=++KK令忽略管壁熱阻令則=計(jì)Q=K 97x6A=A=計(jì)ii