能量平衡計(jì)算書(shū)

1、能量均衡計(jì)算書(shū)能量均衡計(jì)算書(shū)21/21能量均衡計(jì)算書(shū)年產(chǎn)55萬(wàn)噸對(duì)二甲苯項(xiàng)目能量均衡計(jì)算書(shū)揚(yáng)子石化年產(chǎn)55萬(wàn)噸對(duì)二甲苯項(xiàng)目能量均衡計(jì)算書(shū)附錄二浙江大學(xué)怦然心動(dòng)團(tuán)隊(duì)李盛巧、喻虹羽、王挺、王嘯、藍(lán)佳龍浙江大學(xué)怦然心動(dòng)年產(chǎn)55萬(wàn)噸對(duì)二甲苯項(xiàng)目能量均衡計(jì)算書(shū)目錄能量均衡計(jì)算書(shū)-1-1.1總述-1-1.2熱量衡算的原理和準(zhǔn)則-1-1.3熱量衡算任務(wù)-2-1.4熱量衡算-2-三苯分別工段熱量衡算-2-甲苯歧化及烷基轉(zhuǎn)移工段熱量衡算-4-甲苯甲醇烷基化工段熱量衡算-8-異構(gòu)化工段熱量衡算-12-1.5總結(jié)-16-浙江大學(xué)怦然心動(dòng)年產(chǎn)55萬(wàn)噸對(duì)二甲苯項(xiàng)目能量均衡計(jì)算書(shū)能量均衡計(jì)算書(shū)1.1總述擬建一套年產(chǎn)值55

2、萬(wàn)噸的對(duì)二甲苯裝置，在全工藝段中陪伴著物料從一個(gè)系統(tǒng)或單元進(jìn)入另一個(gè)系統(tǒng)或單元，在發(fā)生質(zhì)量傳達(dá)的同時(shí)也陪伴著能量的消耗、開(kāi)釋和轉(zhuǎn)變。此中的能量變換數(shù)目關(guān)系可以從能量衡算求得，關(guān)于新設(shè)計(jì)的車(chē)間，可以由此確立設(shè)備的熱負(fù)荷。再依據(jù)設(shè)備的熱負(fù)荷大小、所辦理物料的性質(zhì)及工藝要求選擇合適的設(shè)備?？傊?，經(jīng)過(guò)下述能量衡算，可以為后續(xù)設(shè)計(jì)工作中提升熱量的利用率，降低能耗供給主要依照。1.2熱量衡算的原理和準(zhǔn)則工程依照化工設(shè)計(jì)中關(guān)于熱量衡算的基本思想和要求，依照基本規(guī)范與實(shí)質(zhì)工藝相結(jié)合的原則，進(jìn)行熱量衡算書(shū)的編制。此中一個(gè)主要依照是能量均衡方程：QinQoutQl此中，Qin表示輸入設(shè)備熱量的總和；Qout表示輸

3、出設(shè)備熱量的總和；Ql表示損失熱量的總和。關(guān)于連續(xù)系統(tǒng)：Q+W=Hout-Hin此中，設(shè)備的熱負(fù)荷。輸入系統(tǒng)的機(jī)械能。Hout走開(kāi)設(shè)備的各物料焓之和。Hin進(jìn)入設(shè)備的各物料焓之和。在進(jìn)行全廠(chǎng)熱量衡算時(shí)，是以單元設(shè)備為基本單位，考慮由機(jī)械能變換、化學(xué)反應(yīng)開(kāi)釋和單純的物理變化帶來(lái)的熱量變化。最后對(duì)全工藝段進(jìn)行系統(tǒng)級(jí)的熱量均衡計(jì)算，從而用于指導(dǎo)節(jié)能降耗設(shè)計(jì)工作。-1-年產(chǎn)55萬(wàn)噸對(duì)二甲苯項(xiàng)目能量均衡計(jì)算書(shū)1.3熱量衡算任務(wù)在進(jìn)行對(duì)二甲苯裝置的熱量衡算中，主要經(jīng)過(guò)定量計(jì)算完成下述基本任務(wù)：確立工藝單元中物料輸送機(jī)械（如泵）所需要的功率，以便于進(jìn)行設(shè)備的設(shè)計(jì)和選型；確立精餾等單元操作中所需要的熱量或冷量

4、以及傳達(dá)速率，計(jì)算換熱設(shè)備的尺寸，確立加熱劑和冷卻劑的耗費(fèi)量，為后續(xù)設(shè)計(jì)中比方供汽、供冷、供水等專(zhuān)業(yè)供給設(shè)備條件；確立為保持必定反應(yīng)溫度所需移除也許加入的熱傳達(dá)速率，指導(dǎo)反應(yīng)器的設(shè)計(jì)和選型；提升熱量?jī)?nèi)部集成度，充分利用余熱，提升能量利用率，降低能耗；最后計(jì)算出總需求能量和能量的花費(fèi)，并由此確立工藝過(guò)程在經(jīng)濟(jì)上的可行性。1.4熱量衡算1.4.1三苯分別工段熱量衡算1.4.1.1二甲苯塔表2.1熱負(fù)荷表-冷凝器再沸器QHeatduty/Gcal/hr-28.011593527.6057722-0.4058213表2.2流股焓變計(jì)算表inout物流編號(hào)104C8C9TemperatureC166.8

5、247146.3796188.978Pressurebar1.81.21.8VaporFrac000TotalFlowkmol/hr638.6267512.8306125.796TotalFlowkg/hr69566.3754447.1215119.24TotalFlowcum/hr94.9234972.3835721.01181-2-年產(chǎn)55萬(wàn)噸對(duì)二甲苯項(xiàng)目能量均衡計(jì)算書(shū)EnthalpyGcal/hr0.0437639Hin(Gcal/hr)0.0437639413Hout(Gcal/hr)-0.362057135表2.3熱量均衡計(jì)算一覽表QHinHoutError-0.40582130.0

6、43763943-0.362057135-5.51228E-071.4.1.2第一三苯分別分近鄰塔表2.4熱負(fù)荷表-冷凝器再沸器QHeatduty/Gcal/hr-22.763009324.23954111.4765318表2.5流股焓變計(jì)算表inout物流編號(hào)103PRO-BENC7104TemperatureC12086.23632124.6322166.8247Pressurebar1.51.21.4162791.8VaporFrac0000TotalFlowkmol/hr1418.447257.3201522.5638.6267TotalFlowkg/h214

7、8139.4169566.37TotalFlowcum/hr178.281924.8866462.8722594.92349EnthalpyGcal/hr5.7146383.5363543.611170.0437639Hin(Gcal/hr)5.71463767Hout(Gcal/hr)7.19128852表2.6熱量均衡計(jì)算一覽表QHinHoutError1.47653185.714637677.191288528.06281E-05-3-年產(chǎn)55萬(wàn)噸對(duì)二甲苯項(xiàng)目能量均衡計(jì)算書(shū)1.4.2甲苯歧化及烷基轉(zhuǎn)移工段熱量衡算1.4.2.1第一汽提塔表2.7熱負(fù)荷表-冷凝器再沸器QHeatduty/G

8、cal/hr-2.34258892.692108450.34951955表2.8流股焓變計(jì)算表inout物流編號(hào)213GAS-1PRO-BEN2REBTXTemperatureC100-4-4146.0659Pressurebar21.21.21.8VaporFrac0.1437583100TotalFlowkmol/hr291.402635.6631418.14916237.5903TotalFlowkg/hr26958.791514.1251314.74924129.92TotalFlowcum/hr665.0603649.90841.54671432.16755EnthalpyGcal/

9、hr-0.4874231-0.819930.07699050.6050359Hin(Gcal/hr)-0.487423142Hout(Gcal/hr)-0.137903591表2.9熱量均衡計(jì)算一覽表QHinHoutError0.34951955-0.48742314-0.1379035912.86107E-091.4.2.2甲苯歧化及烷基轉(zhuǎn)移反應(yīng)器表2.10熱負(fù)荷表-QHeatduty/Gcal/hr0表2.11流股焓變計(jì)算表inout-4-年產(chǎn)55萬(wàn)噸對(duì)二甲苯項(xiàng)目能量均衡計(jì)算書(shū)物流編號(hào)205206TemperatureC379.0565379.1717Pressurebar3030Vapo

10、rFrac11TotalFlowkmol/hr2269.1992269.199TotalFlowkg/hr36033.9136033.91TotalFlowcum/hr4155.9324157.381EnthalpyGcal/hr8.4004438.400443Hin(Gcal/hr)8.400443Hout(Gcal/hr)8.400443表2.12熱量均衡計(jì)算一覽表QHinHoutError08.4004438.40044301.4.2.3氣液分別器表2.13熱負(fù)荷表-QHeatduty/Gcal/hr0.0217006361表2.14流股焓變計(jì)算表inout物流編號(hào)208209211Te

11、mperatureC252525Pressurebar302525VaporFrac0.868687710TotalFlowkmol/hr2269.2591977.856291.4026TotalFlowkg/hr36034.529075.72426958.79TotalFlowcum/hr1690.1791989.28832.46717EnthalpyGcal/hr-4.408758-2.820834-1.566223Hin(Gcal/hr)-4.408758Hout(Gcal/hr)-4.38706-5-年產(chǎn)55萬(wàn)噸對(duì)二甲苯項(xiàng)目能量均衡計(jì)算書(shū)表2.15熱量均衡計(jì)算一覽表QHinHoutEr

12、ror0.0217006361-4.408758-4.387061.29501E-141.4.2.4E201歧化原料預(yù)熱器表2.16熱負(fù)荷表-QHeatduty/Gcal/hr9.24766834表2.17流股焓變計(jì)算表inout物流編號(hào)204207204-1208-1TemperatureC95.7786379.0565342.5878120Pressurebar30303030VaporFrac0.892601110.9120873TotalFlowkmol/hr2269.1992269.1992269.1992269.199TotalFlowkg/hr36033.9136033.9136

13、033.9136033.91TotalFlowcum/hr2136.6444155.8563923.6612315.304EnthalpyGcal/hr-2.0150328.0986067.232636-1.149062Hin(Gcal/hr)6.08357375Hout(Gcal/hr)6.08357375表2.18熱量均衡計(jì)算一覽表QHinHoutError9.247668346.083573756.0835737501.4.2.5多級(jí)壓縮機(jī)表2.19熱負(fù)荷表-QW-6-年產(chǎn)55萬(wàn)噸對(duì)二甲苯項(xiàng)目能量均衡計(jì)算書(shū)Heatduty/Gcal/hr-0.0943059833表2.20流股焓變計(jì)算表

14、inout物流編號(hào)H2203TemperatureC25144.4174Pressurebar1.0132530VaporFrac11TotalFlowkmol/hr37.9115537.91155TotalFlowkg/hr76.4251476.42514TotalFlowcum/hr928.068744.4553EnthalpyGcal/hr1.03378E-050.0318618Hin(Gcal/hr)1.03377546e-05Hout(Gcal/hr)0.0318617974表2.21熱量均衡計(jì)算一覽表QWHinHoutError-0.09430598330.1261574421.0

15、3378E-050.03186188.41314E-081.4.2.6單級(jí)壓縮機(jī)表2.22熱負(fù)荷表-WHeatduty/Gcal/hr0.30854577472055028表2.23流股焓變計(jì)算表inout物流編號(hào)209210TemperatureC2545.30285Pressurebar2530VaporFrac11-7-年產(chǎn)55萬(wàn)噸對(duì)二甲苯項(xiàng)目能量均衡計(jì)算書(shū)TotalFlowkmol/hr1977.8561977.856TotalFlowkg/hr9075.7249075.724TotalFlowcum/hr1989.2881775.455EnthalpyGcal/hr-2.820834

16、-2.512288Hin(Gcal/hr)-2.820834Hout(Gcal/hr)-2.512288表2.24熱量均衡計(jì)算一覽表WHinHoutError0.30854577472-2.820834-2.5122887.30133E-071.4.3甲苯甲醇烷基化工段熱量衡算1.4.3.1第一甲醇塔表2.25熱負(fù)荷表-冷凝器再沸器QHeatduty/Gcal/hr-2.717782943.196695420.478912表2.26流股焓變計(jì)算表inout物流編號(hào)319320WATER-1GAS-3TemperatureC8049116.970549Pressurebar1.81.21.81.

17、2VaporFrac0001TotalFlowkmol/hr721.133780.90311620.928219.30234TotalFlowkg/hr14305.42541.53611186.2577.665TotalFlowcum/hr16.4393.33639612.42794426.4341EnthalpyGcal/hr-46.56182-4.491261-41.34812-0.243531Hin(Gcal/hr)-46.5618217Hout(Gcal/hr)-46.0829093-8-年產(chǎn)55萬(wàn)噸對(duì)二甲苯項(xiàng)目能量均衡計(jì)算書(shū)表2.27熱量均衡計(jì)算一覽表QHinHoutError0.4

18、78912-46.5618217-46.08290938.35227E-071.4.3.2第二甲醇塔表2.28熱負(fù)荷表-冷凝器再沸器QHeatduty/Gcal/hr-2.427942935.268610892.840668表2.29流股焓變計(jì)算表inout物流編號(hào)309310GAS-4311TemperatureC1002020136.6848Pressurebar1.81.21.21.8VaporFrac0.0187133010TotalFlowkmol/hr2098.101126.393131.321091940.387TotalFlowkg/hr1932427829.71929.627

19、3184483TotalFlowcum/hr904.00299.106194630.4664245.1991EnthalpyGcal/hr6.276166-2.6805370.242411.55496Hin(Gcal/hr)6.27616588Hout(Gcal/hr)9.11682126表2.30熱量均衡計(jì)算一覽表QHinHoutError2.8406686.276165889.116821264.44262E-061.4.3.3第二三苯分別分近鄰塔表2.31熱負(fù)荷表-冷凝器再沸器QHeatduty/Gcal/hr-39.729646439.0024227-0.72722表2.32流股焓變計(jì)

20、算表-9-年產(chǎn)55萬(wàn)噸對(duì)二甲苯項(xiàng)目能量均衡計(jì)算書(shū)inout物流編號(hào)311PRO-BEN3313314TemperatureC136.684886.752124.2059161.2972Pressurebar1.81.21.3851061.8VaporFrac0000TotalFlowkmol/hr1940.3877.7404681548.654383.9924TotalFlowkg/hr184483607.249814310840767.47TotalFlowcum/hr245.19910.7525778186.802155.8242EnthalpyGcal/hr11.554960.10493

21、8410.425690.2971022Hin(Gcal/hr)11.5549577Hout(Gcal/hr)10.8277329表2.33熱量均衡計(jì)算一覽表QHinHoutError-0.7272211.5549610.82773-1.5126E-061.4.3.4甲苯甲醇反應(yīng)器表2.34熱負(fù)荷表-QHeatduty/Gcal/hr-6.97333673表2.35流股焓變計(jì)算表inout物流編號(hào)304305TemperatureC384.2304384.2304Pressurebar55VaporFrac11TotalFlowkmol/hr2791.8062918.625TotalFlowkg

22、/hr210396210396TotalFlowcum/hr29859.1231238.85EnthalpyGcal/hr18.3487411.3754Hin(Gcal/hr)18.3487413-10-年產(chǎn)55萬(wàn)噸對(duì)二甲苯項(xiàng)目能量均衡計(jì)算書(shū)Hout(Gcal/hr)11.3754046表2.36熱量均衡計(jì)算一覽表QHinHoutError-6.8490417.7817710.93273-4.68929E-071.4.3.5氣液分別器表2.37熱負(fù)荷表-QHeatduty/Gcal/hr-1.18290293表2.38流股焓變計(jì)算表inout物流編號(hào)306GAS-2307Temperature

23、C503535Pressurebar51.81.8VaporFrac0.0041461310TotalFlowkmol/hr2918.62599.390372819.235TotalFlowkg/hr2103962848.145207547TotalFlowcum/hr310.32611397.985237.5367EnthalpyGcal/hr-43.11510.5796227-44.87763Hin(Gcal/hr)-43.1151024Hout(Gcal/hr)-44.2980053表2.39熱量均衡計(jì)算一覽表QHinHoutError-1.1829-43.1151-44.298-2.5

24、3613E-081.4.3.6烷基化反應(yīng)進(jìn)口預(yù)熱器表2.40熱負(fù)荷表-QHeatduty/Gcal/hr45.8585026-11-年產(chǎn)55萬(wàn)噸對(duì)二甲苯項(xiàng)目能量均衡計(jì)算書(shū)表2.41流股焓變計(jì)算表inout物流編號(hào)303305303-1306-1TemperatureC96.39687384.2304351.8646120Pressurebar5555VaporFrac0110.0947037TotalFlowkmol/hr2791.812918.632791.812918.63TotalFlowkg/hr210397210397210397210397TotalFlowcum/hr262.44

25、4231238.928252.511989.713EnthalpyGcal/hr-31.1472411.3753514.71127-34.48315Hin(Gcal/hr)-19.7718838Hout(Gcal/hr)-19.7718838表2.42熱量均衡計(jì)算一覽表QHinHoutError45.8585026-19.7718838-19.771883801.4.4異構(gòu)化工段熱量衡算1.4.4.1鄰二甲苯塔表2.43熱負(fù)荷表-冷凝器再沸器QHeatduty/Gcal/hr000表2.44流股焓變計(jì)算表inout物流編號(hào)405RE-BOT1RE-TOP1430423TemperatureC1

26、44.8725167.457144.7039144.7502167.4561Pressurebar1.61.81.21.21.8VaporFrac01010TotalFlowkmol/hr546.47248499.9048028.928353.5418721.755-12-年產(chǎn)55萬(wàn)噸對(duì)二甲苯項(xiàng)目能量均衡計(jì)算書(shū)TotalFlowkg/hr58018.63902461852405886869926015TotalFlowcum/hr76.561511638561134.9722321851243.533EnthalpyGcal/hr0.236699784.043075.51255978.2098

27、11.58253Hin(Gcal/hr)89.7923258Hout(Gcal/hr)89.7923258表2.45熱量均衡計(jì)算一覽表QHinHoutError089.792325889.792325801.4.4.2第二汽提塔表2.46熱負(fù)荷表-冷凝器再沸器QHeatduty/Gcal/hr-1.267571151.632504770.364934表2.47流股焓變計(jì)算表inout物流編號(hào)416PRO-BEN4GAS-5401TemperatureC1401010162.568Pressurebar81.21.21.8VaporFrac0.00231185010TotalFlowkmol/h

28、r332.85976.3774958.550242317.932TotalFlowkg/hr34480.56506.2024220.511633753.85TotalFlowcum/hr49.045180.5755242166.537545.8586EnthalpyGcal/hr0.005945330.0610403-0.14173730.451576Hin(Gcal/hr)0.00594533144Hout(Gcal/hr)0.370878953表2.48熱量均衡計(jì)算一覽表QHinHoutError-13-年產(chǎn)55萬(wàn)噸對(duì)二甲苯項(xiàng)目能量均衡計(jì)算書(shū)0.3649340.0059450.370879

29、1.03701E-061.4.4.3異構(gòu)化反應(yīng)器表2.49熱負(fù)荷表-QHeatduty/Gcal/hr0表2.50流股焓變計(jì)算表inout物流編號(hào)410412TemperatureC373.5394376.7692Pressurebar8.358.35VaporFrac11TotalFlowkmol/hr2652.1332652.133TotalFlowkg/hr53281.1453281.14TotalFlowcum/hr17130.9317215.63EnthalpyGcal/hr-2.026962-2.026962Hin(Gcal/hr)-2.026962Hout(Gcal/hr)-2.

30、026962表2.51熱量均衡計(jì)算一覽表QHinHoutError0-2.026962-2.02696201.4.4.4氣液分別器表2.52熱負(fù)荷表-QHeatduty/Gcal/hr-0.658248784表2.53流股焓變計(jì)算表-14-年產(chǎn)55萬(wàn)噸對(duì)二甲苯項(xiàng)目能量均衡計(jì)算書(shū)inout物流編號(hào)413414415TemperatureC2555Pressurebar8.3588VaporFrac0.876040210TotalFlowkmol/hr2652.1332319.273332.8597TotalFlowkg/hr53281.1418800.5834480.56TotalFlowcum

31、/hr6949.3256710.92239.33669EnthalpyGcal/hr-17.8091-16.38111-2.086235Hin(Gcal/hr)-17.8090972Hout(Gcal/hr)-18.467346表2.54熱量均衡計(jì)算一覽表QHinHoutError-0.65825-17.8091-18.4673-2.43069E-081.4.4.5單機(jī)壓縮機(jī)表2.55熱負(fù)荷表-WHeatduty/Gcal/hr0.019659表2.56流股焓變計(jì)算表inout物流編號(hào)H2-2407TemperatureC96.39687384.2304Pressurebar55VaporFr

32、ac01TotalFlowkmol/hr2791.812918.63TotalFlowkg/hr210397210397TotalFlowcum/hr262.444231238.9EnthalpyGcal/hr2.24883E-060.0196613Hin(Gcal/hr)2.24883E-06-15-年產(chǎn)55萬(wàn)噸對(duì)二甲苯項(xiàng)目能量均衡計(jì)算書(shū)Hout(Gcal/hr)0.0196613表2.57熱量均衡計(jì)算一覽表WHinHoutError0.0196592.25E-060.0196611.63095E-061.4.4.6異構(gòu)化反應(yīng)進(jìn)口預(yù)熱器表2.58熱負(fù)荷表-QHeatduty/Gcal/hr1

33、2.2212617表2.59流股焓變計(jì)算表inout物流編號(hào)409412409-1413TemperatureC67.3434376.7692330102.7449Pressurebar8.358.358.358.35VaporFrac0.8858858110.9159968TotalFlowkmol/hr2652.1332652.1332652.1332652.133TotalFlowkg/hr53281.1453281.1453281.1453281.14TotalFlowcum/hr8023.57517215.6315972.859136.057EnthalpyGcal/hr-16.04

34、628-2.026963-3.825014-14.24822Hin(Gcal/hr)-18.0732379Hout(Gcal/hr)-18.0732379表2.60熱量均衡計(jì)算一覽表QHinHoutError12.2212617-18.0732379-18.073237901.5總結(jié)經(jīng)過(guò)本次熱量衡算，我們計(jì)算全部塔設(shè)備、反應(yīng)器、氣液分別器的能量流動(dòng)，并以典型換熱器和壓縮機(jī)為例，指導(dǎo)全部換熱器和流體輸送機(jī)械的能量衡算，最-16-年產(chǎn)55萬(wàn)噸對(duì)二甲苯項(xiàng)目能量均衡計(jì)算書(shū)終將采集到的數(shù)據(jù)進(jìn)行整理，以便于設(shè)備選型以及熱量集成。以下為流體輸送機(jī)械和換熱器的設(shè)備選型結(jié)果，其余詳見(jiàn)附錄四。表2.61泵選型一覽

35、表泵編號(hào)流量/(L/s)總揚(yáng)程/m泵型號(hào)電機(jī)功率/KWP10136.5761695.7493147XA80/16（2臺(tái)并聯(lián)）2.4510158P2015.83668622399.6333750GDL18-15（3臺(tái)串聯(lián)）31.3338512P2024.26731612380.677708IS65-40-315（3臺(tái)串聯(lián)）30P3017.1956338451.270614IX180-65-160B（2臺(tái)串聯(lián)）5.19407277P30213.197376847.7279619IX180-65-160（2臺(tái)串聯(lián)）7.57151981P3040.9267727450.8679173IX132-25-

36、160A（2臺(tái)串聯(lián)）1.19115348P3052.5294324645.0665376IX150-32-160B（2臺(tái)串聯(lián)）2.36222229P30651.889583948.1163956IS50-32-160B（單泵）24.8271025P40112.748020897.0787452IX180-65-160（3臺(tái)串聯(lián)）14.6833856P40221.26755445.38229602IS100-80-125（2臺(tái)并聯(lián)）1.2596129表2.62壓縮機(jī)選型一覽表編號(hào)品牌型號(hào)功率kw3串并聯(lián)方式流量m/min1CP201德鴻DH-30AG223.69臺(tái)并聯(lián)2CP401開(kāi)山LG-1.2/84.51.23臺(tái)并聯(lián)3CP402ABBVW-45/845284臺(tái)并聯(lián)4CP403開(kāi)山LGS-78/13G560906臺(tái)并聯(lián)5MC201蚌埠VF-6/306663臺(tái)并聯(lián)表2.63換熱器選型一覽表序號(hào)編號(hào)用途型號(hào)換熱管數(shù)目資料數(shù)目1E101第一甲醇回收塔塔釜再BFM1100-0.6-237-3/19-113691Q345R沸器（二甲苯塔頂冷凝器）