探析多流股换热器网络识别与构造的研究

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1、大连理工大学硕士学位论文多流股换热器网络识别与构造的研究姓名：罗立申请学位级别：硕士专业：化学工程指导教师：姚平经20040614多流股换热器网络识别与构造的研究构造规则，详细描述了多流股换热器网络综合过程中的“背包”问题，再一次阐明了限制单个双流股换热器热负荷的必要性。多流股换热器网络综合方法的研究对于工程应用是很有意义的，构造并设计出适用的多流股换热器，进一步扩大多流股换热器的使用范围，还有很多的工作要做。关键词：超结构级数热负荷遗传模拟退火算法多流股换热器网络背包问题AbstractTheheatexchangernetwork(HEN)isu

2、sedtorecoVertheenergyofprocesssystem．Since1960’s，theresearchtothesynthesisofHENisunceasing．Theprimarykindofheatexchangeristhesingle也otandsingle—c01dhcatexchaIlgera11dthiskindofheatexchangerisusedinprocessindustrysuchaspetrochemicalindustry．Themulti·streamheatexchaIlgerisanewtyp

3、eofheatexchaJlger；itiscurrentlyusedingasprocessing．Comparedwithtraditionalsingle-hotandsingle—cOldheatexcha

4、19ers，multi-streamheatexchallgerspossessmanyadVantagessuchashi曲heattransferemciency，compactstmctureaIIdlowercost．Muchworkduringthelasthalfofcemllryisfocusedontheconventio

5、nalsingle．hotandsingle—coIdheatexchangernetworks；theresea∽htomemulti-streamheatexchangernetworksisfbwThewaytothesynthesisofmulti．stre锄heatexchangereithersymhesizesaIlstre锄stoonemulti‘streamheatexchallgerormergessomesingle-hotandsingle—coldheatexchangerstoconst九lctonemulti-stre锄

6、heatexchangeronthebasisofoptimizedsingIe-hotandsingle-coldheatexchallgernetwork．Theresearchaimforthemulti．stre啪heatexchangeristomakethemappliedbetterinindus；j；i誉耋ii吝霉毒《毒害j壹毒毫l；毒誊嚣耋善薹孽"x多流股换热器网络识别与构造的研究themodel，theheatloadofsingle—hotandsin91e—coldheatexchangersislimitedandthenu

7、mberofstagesisincreasedpmperlySomeex龇plesproVetheoriginalwaytodete胁inethenumberofstagesisinapplicableiftheheatloadofheatexchangerislimited，soanewwaytodeterminethen啪berofstagesisestablished．Therearemanylarge—areasingle_hota11dsingle—coldheatexchaIlgersburdeningaIargeofheatinorig

8、inaloptimizedHEN，theywillbedividedintomanysmallheatexchangerinindustfy．Itisnodoubtthatthecostofheattransfcrequipmentincreases．Thispaperlookstheallowablemaximumheatloadasoneconstraintinsuperstmcturemodel，theoptimizedHENbyt11iswayisbetterthantheformerjntheannualnetw口rkcost，especi

9、allywhentheequipmentcosthasabigratiointotalcost．3)Anal