云南大理卷烟厂蒸汽供热系统的综合测试分析与评价

重庆大学硕士学位论文云南大理卷烟厂蒸汽供热系统的综合测试分析与评价姓名：王忠申请学位级别：硕士专业：动力工程指导教师：彭岚;李炯20050501I()IIABSTRACTInChina,withthesustainedandrapiddevelopmentofeconomy,energy-savingbecomesthehottesttopic.Toourknowledge,theeconomicaloperationofheatingsystemiskeytosavingenergy.Furthermore,itisfoundthatthetestingandanalysisofheatingsystemiscrucialfortheeconomicaloperation.Themainpurposeofthisthesisistoperformthethermaltestingforthreemainpartsofheatingsystemwiththemethodsofenergyandexergybalance,basedontheheatingsystemofDaLitobaccoplantinYunNanprovince.Theresultsshowthethermalefficiencyoftheindustrialboilersystemfitsthenationalstandard,buttheexergyefficiencyissmaller.Atthesametime,theanalysisoftheheatingequipmentandthehydrauliccalculationofsteam-networkarepresentedinourpaper.Itisconcludedthattheopticalboiler-designedisaneffectivetoolforenergy-conserving.Accordingly,theefficiencyofboilercanbeenhancedbyitseconomicaloperation,inordertosaveenergy.Meanwhiletheprospectsoftheoperationaloptimizationoftheindustrialboilersystemareproposed,comparedwithtraditionalmethods.Keywords:heatingsystem,thermaltesting,heatefficiency,exergyefficiency,hydrauliccalculation,operationaloptimization1111.1()60%10%2%5%3%6%5%85%50%60%()12,,100375t/h5t/h300500t15%25%6101.2[131522][13]x(k)x(k1)x(k-2)^x(k+2),^x(k+1)[2122]131.31.3.1[6]70%2004302/3[1]212021(WEC)(ASA)21210050%[4,5]2121[11]2025%1450%[910]21200320036723.62.5()6.9202060%[7]202020GDP202015%27%2000202010.49320[2]1.3.280%1570%~100%60%~100%RBF[27][28]1.3.3[26][16]Matlab16MatlabMatlabMatlabMatlab1.3.4PopvEvaMKapschkeM8‘MeH2h6i5hIaR1ei8h—BaMrdFuJi(LT)1nst01KMieMarvyama171)2)-3)1.3.5()[17]18(1)KV(2)(3)[19]()()(1)(2)1.1()()(3)1.1Fig1.1Theheatingpumpsystemforcondensationwaterrecovery19(0.2MPa)1.42/3110()()()21122.121(10t/h)(50%)[50]55732122.1.110t/h35t/h10t/h10t/h35t/hGB/T15317-94GB10180TESTO2.112.1Table2.1Themainresultsofboilerthermaltesting1#2#3#(35t/h)D(t/h)6.9107.70812.555B(kg/h)98511561835Ct(%)25.6923.5030.46apy1.682.412.34py151176103tgs(%)939494213q2(%)6.9812.006.02q3(%)2.743.261.04q4(%)12.0911.2114.81q5(%)1.701.701.10q6(%)1.091.071.12(%)74.8672.1172.56(%)0.141.371.19(%)2.292.760.86(%)12.0711.1814.63(%)1.381.380.89(%)0.770.750.78(%)10.0010.214.10(%)41.9341.9844.11(%)33.3832.1833.88(%)0.482.301.602.1.210t/h(≥72%)35t/h(≥74%)(10t/h≤18035t/h≤160)1#35t/h(≤2.4)1#35t/h2#2#(≤20%)35t/h2142#2.21)()2)()13)()4)5)70%1)215(1)(2)(3)(4)2)COH2CH43)(1)(2)(3)(4)4)5)1#6.98%12.09%2#12.00%11.21%3#6.02%14.81%2161)2)3)2COHOSO1#10.00%2#10.21%3#4.10%(1)(2)217(3)2.3502.3.11)70()8—105—640-50%65%-70%2)“”2183)40%350%1.5%“”4)30—40%5)2510()10030—352.3.21100.6%1%()21921)2)3)4)5)1)11.52)233)4)22032133.1(1)(2)(3)(4)(1.5)3221%3040%17002600()3.13.1Table3.1Thevelocityofsteamheatingpipes/(m/s)/mmDN2008060DN≤2005035()3.1.1(1)0.70.90.81.0(2)1.21.21.2323(3)3.1.2()()()()100Pa/mh∆=LppLh21−=(3.1)h∆(Pa/m)h(Pa)1p(Pa)2p(Pa)L(m)(324dzLL+)t∆=pGcQ310−×(3.2)αzopLttqQ)(−=(3.3)t∆()Q(kJ/h)G(t/h)Q(kJ/m)pt()t0()zL(m)α221ρρρ+=p(3.4)pρ(kg/m3)ρ1(kg/m3)ρ2(kg/m3)lhhp∆=(3.5)pphhρ∆=∆(3.6)h(Pa)h∆(Pa/m)ph∆(Pa/m).3.1.335t/h10t/h3.23.13253.2Table3.2Hydrauliccalculationofsteamnetwork(m)ρvj'Gtt/hDn(mm)l(m)ld(m)lzl(m)Pa(MPa)Pm(MPa)ρplkg/m3Rsh(Pa/m)Vsh(m/s)∆P(MPa)'mP(MPa)'mρ(kg/3m)40.7150140.3146326.21.21.0665.84411.515.80.1341.0665.75334.29280116.2262.9153.21.20.9895.5831380.339.730.2110.9895.4126.74100196.7121.5238.21.21.0645.788582.7629.40.13891.06115.782.927071.0860129.081.21.1746.065203.817.10.02631.1746.0610.8815074.3885.7228.081.1740.6834.792325.741.30.530.6444.7883.1Fig3.1Thestructureofsteampipingsystem3261)2)3)1AB4)5)()3.23.2.1GB4272-92GB/T15910-1995GB8174WMEA21HIOKI3441TESTO3.33.43.3Table3.3StatisticsofsteamnetworkABCDEFGHIKΦ(mm)159892732731401p)(Mpa1.351.351.351.351.35)(Mpap1.31.21.31.311.155327)(mL7419611874142)(mmbδ6020606050)(kgD125553.4Table3.4ThermaltestingofmainsteampipingsystemABCDEFGHIKTh3030303030PMPa1.31.21.31.31.155Tr191.6188191.6192186.2Tb5341504538T∆TB-Th2311201510Wm/s0.420.460.440.420.44KhmkJ2/58.3359.0958.7258.3358.72A2m0.880.411.241.240.76QaKJ/h(ThTrKA−8295382811767117176971QiKJ/hLQa6138307502881388506867058460086QKJ/h∑Qi4332640QzKJ/h35009618η%∑−Q10087.913.2.23281)2)50GB81743)4)5)6)87.19%42944.1(4)(1)(1)(1)(1)8(1)(1)(1)(1)(1)(1)(1)(1)(1)90.17~1.07Mpa4.24.2.1GB/T15914-1995GB/2588-814.2.2(1)2(2)1380%(3)(4)44.34.3.11430E=E+E(4.1)()E=E(4.2)(Qsr)(Qyx)100%yxsrQQη=×(4.3)Qyx()Qsr()2()(EP)()(Eg)gpEEη=(4.4)431Po=0.1MPa,t0=20oC(1)()Ep01psrqTEQT=−×(KJ/Kg)(4.5)Tq(K)To(K)(2)()EqEswEzsEzfEqh11201yymTEQT=−×(4.6)Tm12(K)()122121T/TmTTTln−=(4.7)21201yymTEQT=−×(4.8)Tm12--------(K)31201slslmTEQT=−×(4.9)Tm12--------(K)41201slslmTEQT=−×(4.10)Tm12--------(K)432()t1t2r04.3.2GB/2588-814-124.1Table4.1ThetestingofsteamheatingequipmentsKg/h()()(%)(%)(%)(%)1WF3864826.864.215.2017.1064.8412.31269338.961.016.9519.0038.8810.013KG31366931.576.917.5012.4052.1317.814CARBUIO196429.871.417.319.9140.419.385CARBUIO154035.260.110.1614.6539.096.246TBL41424.164.512.3919.2857.3110.287SJI205017853.665.819.2821.6742.9013.498HT-6347634.182.220.7524.2061.2618.089KLK4114082.265