設計參考題目30kg h調溫除濕機的

空氣的相對濕度對我們生活環(huán)境的舒適度和生產工藝都有著舉足輕重的影院、家庭以及貴重物品保藏、珍貴的保管?？煞乐共牧掀鞯谋砻鏈囟鹊陀跍囟?，濕空氣經過蒸發(fā)器就會冷凝為水析出，而使空氣得制冷循環(huán)主要是由壓縮機吸入蒸發(fā)器來的低溫、低冷劑、壓縮后形成高溫、：除濕機蒸發(fā)器冷凝器Thedesignof30kg/hthermostatTherelativehumidityoftheairhasasignificantimpactonourdailylifeandproductiontechnology.Airdehumidificationmachinesaremechanicalequipmentsthatwereusedtoremovethewatercontainedintheairtoreducetheairhumidity.Airdehumidificationmachinescanbewidelyusedinhos,hospitals,housesandsafekeeofvaluablesstorageorrareculturalrelics.Airdehumidificationmachineswereusedtopreventcorrosiondamageforthematerials.Dehumidifierdehumidificationcapacityperformeverywellinsomeceswherehavespecialrequirements.Withthecharacteristicsoftheoutletairtemperatureisadjustableandlargeamountofdehumidificationtherefrigerationair-conditioningdehumidifiergetthefavourofdesignersandusersgradually.Akindoffrozenadjustabledehumidifierisdesignedinthispaper.Frozendehumidificationmethodistomakethesurfacetemperatureoftheevaporatorbelowerthanthedewpointtemperature.Atthesametime,wetairthroughtheevaporatorwillcondenseintowatertoprecipitation.Temperature-regulateddehumidifierhastwocondensers:awater-cooledcondenserandanair-cooledcondenser.Dehumidifierandairconditionerisapproximaythesamestructure,includingcompressor,condenser,evaporator,capillarytube,fanandsoon.Theairconditionerindoorandoutdoorusethesamefanandcarryoutheattransferrespectively.However,thedehumidifierbyaductundertheactionoffan,carryonwetairheatexchangewiththeevaporatorandcondenser.Airdehumidificationmachineaccordingtothestructureandfunctioncanbedividedintothreeparts:refrigerationcycleparts,aircirculationandelectricalcontrolparts.Refrigerationcycleismainlybythecompressortosuctionthelowtemperatureandlowpressurerefrigerantfromevaporator,compressionafterhightemperatureandhighpressuregasformation,andthenthroughcondensationandthrottlingtolowtemperature,lowpressureliquidintotheevaporator,afterevaporationheat elowtemperatureandlowpressuregasbacktothecompressor.Cyclingtowetairmoisturecondensation.Aircirculationpartconsistsofinlet,outlet,centrifugalfanandairduct.Humidairinfanattractcarryonheatexchangewiththeevaporatorsurfacecontact.Duetotheevaporatorsurfacetemperatureislow,wetairiscooledanddehumidificationbyfilteringmoisturecondensationafterdown,aftercoolinganddehumidificationofairthroughthecondenserheatconversionbycentrifugalfanagainbeforesent.Electricalcontrolpart,willbeclosedthepowerswitch,thecompressorandfantostartworkatthesametime.Thistopicresearchmethodistheoreticalcalculation,mainlyontheheatbalancecalculationinthesystem,namelywetairtreatmentofcalculationandtherefrigeratingcompressorcyclethermodynamiccalculation,todeterminetheloadandtemperatureattheinletandoutletofthecondenserandevaporator,andthencompletetheandandcondenserstructuraldesign,andfinallydetermineitsappearancestructureandpressuredrop.ConsideringConsideringthattherewillbealargenumberofwatervaporcondensationontheevaporatorfin,evaporatorfincarryonthemembranetreatmenttofacilitatethecondensateflowout.Inpractice,temperature-regulateddehumidifierhastemperaturelimit.Inthisstudy,theproblemhasnotyetstartedtoresearchfurther.Throughthistopicresearch,wefindthatthetemperature-regulateddehumidifiercaneffectivelyreducetherelativehumidityinsidethehouse,andcanadjustindoortemperature.Atthesametime,thetemperature-regulateddehumidifierhavefeaturesofconvenientoperationandeasytouse.Wecanseethattemperature-regulateddehumidifiersarewidelyusedinthecivildefenseengineering,thelibrary,allkindsofwarehouse,medical,food,agricultureandsoon.Thetemperature-regulateddehumidifierhasimportantsignificancetolifeandeconomicdevelopmentinourcountryandhasagoodapplicationprospect. 第一章緒 第二章設計計算說 結 致 可廣泛應用于旅館、醫(yī)院、家庭以及貴重物品保藏、珍貴的保管?？煞乐共臏囟瓤烧{的特點,越來越受到設計人員和用戶的青睞[2~4]。另一方面，節(jié)能與環(huán)保是空調產業(yè)永恒的。從降低能耗對減小溫室效應論研究一直處于領先地位[8]。國內的除濕技術雖于國外，但近十幾年在熱泵冷凍除濕的方法是在制冷系統(tǒng)中使蒸發(fā)器的表面溫度低于溫度濕空氣圖1-1-1圖1-1-2除濕機與空調器其結構大體相同,包括壓縮機、冷凝器、蒸發(fā)器,毛細管、圖1-2-1除濕機結構圖空氣循環(huán)部分的吸引下與蒸發(fā)器表面接觸進行熱交換。由于蒸發(fā)器表面溫度較低,經過濾的濕溫濕除機不被選用,極大地限制了溫除濕機這一節(jié)能產品的推廣運用[20]。蒸發(fā)溫度t0上升，從圖4-1中可以看出當t0上升到一定值時，W有極大值，而且制冷系數0t3也較低i2i3)≈1.2i1i2)]，tkd2、d3要稍高些，所以工作時除濕量會較大，但最后能達到的含濕量要偏高些。若蒸發(fā)器既定，增大壓縮機，則可知蒸發(fā)溫度t0會下降。這種方案增大了初投資，其效果顯然和t0t3、tk0不能充分利用壓縮機[25~28]。而且t0太低會結霜。但是i會增加，風量G可下降，圖1-4-1冷凝器的熱負荷和溫度。最后，對蒸發(fā)器進行、冷凝器進行的結構設計，干球溫度 額定風量 查焓濕圖的空氣狀態(tài)（1）干球溫度 含濕量：d=13.6 相對濕度：φ=112 圖 Dd2d1D

13.6301.2

d2與952點，查焓濕圖可以得244.2kJ/kg，t216.3℃。Q0

1.261.844.29000kW品牌：壓縮型號 制冷量：58.64蒸發(fā)溫度 水冷冷凝溫度風冷冷凝溫度 輸入功率：20.222-2-22029.5接管尺寸高度底角尺寸油充注量重量2h00G2 061.8 h00G1 2.2.3d02與95%20點，查焓濕圖可以2015.615.110.38g/kg。D01

d2

)1.29000(13.610.38

)34

kg/風冷冷凝器 33456891.風冷冷凝器2.蒸發(fā)器3.膨脹閥4.電磁閥5.電磁閥（升溫）.10.電磁閥（降溫）.1圖 R22壓焓查R22壓-焓圖（）,得制冷劑各點的溫度、壓力、焓值，詳細見表1℃5t1與等p0的交點2℃h2p2的23℃3點，制冷4℃t4為飽和液體5℃5t5為蒸發(fā)器入2-2-2-2中2-2-2-2序號12 qv=v=3 qm=q=04Ww=h2?h1=440.2?5NN=qmw=0.404×6qk=h2?h4=440.2?7Qk=qmqk=0.404×8? ε=w 蒸發(fā)器空氣狀態(tài)參數：干球溫度：27d=13.6g/kg；焓值：h=61.8kJ/kg。干球溫度：15.6d=10.38g/kg；焓值：h=42.25kJ/kg采用連續(xù)整體式鋁套片，紫銅管為Φ12×0.9mm正三角形排列，管間距構參見下圖（2.3 2.3其設計計算的具體內容及結果如下表（2-3-2-3-31db2di=Do-32×(s1?db)(sf?δ)def= 4度LL=5s2=5×52(SS?11 af f6積πdo(Sf?ab f7aof=af+8ai=πdil=π×0.011×9β β α α ε(S1?do)(Sf?ε ωmax=ε=1℃tf=(t1+2234數567×84.46×Red=18.2×9 do?0.54hα0f= ( 12345ξ(h1?ξcp(t1?6qm,da=h? 7RaT1(1+v1 b8qv,a=9mm=√λ 數ρ ρ ?m?=(ρ?1)(1+1R0=26×h′=ηf ab+ηo α=ζα(ηfaf+ af+1234rt0=5℃5t0=5℃67R22數t0=5℃8x1=1?qm9A A=g=310id2 π×A= i= Z根 1.30×10?3Z=A=9.5×10?5i取Z qm,d=Z gi= =9.5×igi αi=57.8c(d i2.82B0=gi×1??0.8ρgC0= (ρ1數 ig1(1??)diRe1 1α1=αi=α1[C1(C0)C2+C3(B0)C4m℃θ′=t1? lnt1?t2?1K0=at at 1αiai+rw+rs+amrt+q=K qi=ai計算表明，10500?10420.19=0.7%<2.5%1 Fi=q=i2 F0f=q=03mL′=F0f= 4qv Af=ω=2.5×f5Bm6Hm7A′=BH=0.85×f8根 n1=S=3019N根 N= =125.83, Z排 Z=n=2815mLt=28×5×Fi′=182ai=182×F0f‘=182aof=182×度WmW=S2Z=25×5=125 L′=224.76=tA = =8.14=iW?p=1.2× 11×i2?PR22=?PR12×35℃R22584.32KPa，流動阻力損失僅占飽和空氣5.6%，因此流動阻力引起的蒸發(fā)溫度變化可忽略不計。4 =(30?12)1000=Red =f P= =S= 0 PT=D=12=0X=1.0PT及Redftz5降678

2-4-112 qv=v=3 qm=q=04Ww=h2?h1=440.2?5N6qk=h2?h4=440.2?78?2-4-2-4-21℃2℃3Qk=根據本設計的需求，選用科KHS冷凝器，型號為KHS-20圖 為Φ12×0.9mm正三角形排列，垂直于流動方向的管間距S1=25mm，鋁片厚δ=0.2mm，考慮風源熱泵的結霜特性，取翅片距Sf=3mm，鋁片導熱系數2-5-21℃2℃3456W7℃8℃9HmLmN根bm11233-4n3-5C3-6m3--78m9mmB3-K12LM3N排84Lm56熱面積 可作為冷凝傳熱面積的富余量72-6BH排5根BH排8根[1].熱泵技術在工業(yè)上的應用前景[J].資源節(jié)約,2008,24(2):38-[2],.熱氣旁通技術在全新風調溫除濕機上的應用[J].制冷與空[3],,崔國民,,.熱泵技術應用現(xiàn)狀及發(fā)展[J].理[4],,.集中式空調系統(tǒng)的除濕設計[J].暖通空調,2004,34(7):73-[5],,,學,喬木.熱泵干燥裝置的技術經濟及環(huán)境分析[J].節(jié)[6],,.變頻除濕機性能研究[J].制冷與空調,2009,23(6):98-[7]居理.熱泵除濕機在恒溫游泳池中的應用[J].建設科技,2009,(1):19-[8],何建國，張海紅，珊.熱泵除濕技術的應用與發(fā)展[J].工程技黃祎林吳兆林周志鋼熱泵除濕技術的應用與發(fā)展[J化工裝備技邵雙全,石文星,,.低溫除濕調溫熱泵機組技術現(xiàn)狀分析[J].制冷，何建國珊,張海紅,,.節(jié)能型冷卻除濕機的研制[J].農業(yè)科學，王新宇淺談并聯(lián)型熱泵調溫除濕機組原理與應用[J科技創(chuàng)新導同,,,.熱泵自然干燥[J].化學工程與裝備,2011,(7):157- 20102（4S.Lowrey,G.Carrington,Z.Suna,M.Cunningham.ExperimentalinvestigationofgeareddomesticrefrigerativedehumidifierperformanceinNewZealandhouseholdclimates[J].internationaljournalofrefrigeration,35(2012)750-756.Qi-LongShi,Chang-HuXue,YaZhao,Zhao-JieLi,Xiang-YouWang.Corrigendumto“Dryingcharacteristicsofhorsemackerel(TrachurusJaponicus)driedinah