恒温恒湿机与恒温恒湿机组的区别在哪?
恒温恒湿机除了调节空气温度以外,还具有湿度调节、除尘等功能。与普通空调相比,恒温恒湿精密空调要求能常年不停机地运行,因而其可靠性非常高。恒温恒湿机的送风系统有多种选择。常见的有下送上回、上送下回、上送侧回等。标准型的恒温恒湿机采用中效过滤装置来清洁室内空气。根据客户需要,可以选择亚高效的空气过滤器。
Inadditiontoadjustingtheairtemperature,theconstanttemperatureandhumiditymachinealsohasthefunctionsofhumidityadjustmentanddustremoval.Comparedwithordinaryair-conditioners,theconstanttemperatureandhumidityprecisionairconditioningsystemcanrunalltheyearroundwithoutstopping,soitsreliabilityisveryhigh.Therearemanyoptionsfortheairsupplysystemofconstanttemperatureandconstanthumiditymachine.Thecommononesincludethedowndelivery,theupperandthelower,andtheupperside.Thestandardtypeconstanttemperatureandhumiditymachineadoptsmediumefficiencyfiltertocleanindoorair.Accordingtocustomerneeds,subefficientairfilterscanbeselected.
恒温恒湿机组特点:
Characteristicsofconstanttemperatureandconstanthumidityunit:
1.制冷量一般在10HP-200HP之间;
1.thecoolingcapacityisgenerallybetween10HP-200HP;
2.配置了电加热和电极式加湿,加热量一般富裕量较大,空调机配置加湿量均偏小,需要重新计算,一般需要加大一个型号或多配置一台;
2.configurationofelectricheatingandelectrodehumidification,theheatingamountisgenerallyrich,airconditionerconfigurationhumidificationissmall,needtoberecalculated,thegeneralneedtoincreaseamodelormulti-configurationone;
3.有额定的风量要求;
3.theratedairvolumerequirements;
4.有额定的冷却水量要求;
4.theratedcoolingwaterrequirements;
5.冷凝器的阻力一般在0.82-3.45mH2O;
5.theresistanceofthecondenserisgenerallyat0.82-3.45mH2O;
6.空调机组尺寸较小;
6.thesizeoftheairconditioningunitissmall;
7.温控范围:18~25,灵敏度:±1;湿控范围:50~70,灵敏度:±5;
7.temperaturecontrolrange:18~25,sensitivity:+1;humiditycontrolrange:50~70,sensitivity:+5;
8.机外静压一般在100~550之间;
8.machineisgenerallybetween100~550.
9.设计条件:进风干球温度23℃,湿球温度17℃;冷却水进水温度30℃,出水温度35℃;
9.designconditions:intakeairdrybulbtemperature23C,wetbulbtemperature17centigrade,coolingwaterinlettemperature30C,effluenttemperature35C;
一般适用在有温湿度控制或整个设计面积不大的情况下。如果该工程面积较大,系统划分较多,空调机房位置相对分散,管理和系统的控制就会带不便,也不利于能量统一分配,能源浪费较严重。在这种情况下,一般面积在大于2000m2,建议采用冷水机组+组合式空气处理机组的设计形式。
Generally,itissuitablefortemperatureandhumiditycontrolorthewholedesignareaisnotlarge.Iftheareaislarge,thesystemisdividedmore,thepositionoftheairconditioningmachineroomisrelativelyscattered,themanagementandsystemcontrolwillbeinconvenient,anditisnotconducivetotheunifieddistributionofenergy,andthewasteofenergyismoreserious.Inthiscase,thegeneralareaisgreaterthan2000m2,andthedesignofchiller+combinedairhandlingunitisrecommended.
恒温恒湿机组的用途分为两块:
Theuseofconstanttemperatureandconstanthumidityunitisdividedintotwopieces.
1、恒温恒湿车间,但无净化要求;
1,constanttemperatureandconstanthumidityworkshop,butnopurificationrequirements;
2、既有恒温恒湿要求,又需要净化等级控制;
2,bothconstanttemperatureandhumidityrequirements,andtheneedforpurificationlevelcontrol;
房间的情况:
Thesituationoftheroom:
1.)房间内显热较大;
1.)theheatintheroomislarger.
2.)房间内显热较小;针对以上两点进行分析:
2.)thesensibleheatintheroomissmall;
a.从负荷方面考虑:
A.considerationoftheload:
系统的送风量是与房间内的显热和送风温差决定的,而不是根据系统总制冷量(房间的显热和潜热)计算得出的。恒温恒湿机组制冷量一般显热占50%,潜热占50%,相当于新风占整个送风量的20%左右。当房间内显热较大,而新风量不大时,计算的送风量较大,就不能根据总制冷量选择恒温恒湿机组标定的制冷量来确定。
Theairvolumeofthesystemisdeterminedbythesensibleheatandairtemperaturedifferenceintheroom,notbythetotalrefrigeratingcapacityofthesystem(thesensibleheatandlatentheatoftheroom).Thecoolingcapacityofconstanttemperatureandhumidityunitis50%,andlatentheatis50%,whichisequivalentto20%ofthefreshairvolume.Whentheheatislargerintheroom,andwhenthenewairvolumeissmall,theamountofairsupplyislarger,anditcannotbedeterminedaccordingtotherefrigeratingcapacityoftheconstanttemperatureandconstanthumidityunit.
b.从机外余压考虑:
B.fromexternalpressureconsideration:
恒温恒湿,但无净化要求系统对空调机组的机外余压要求不高,主要克服送回风管道、阀门、散流器、初效过滤器等,常规的机组即可满足要求;
Constanttemperatureandhumidity,butnopurificationrequirementsofthesystemforairconditioningunitsoutsidepressurerequirementsarenothigh,mainlytoovercometheairsupplyandreturnpipes,valves,diffuser,initialfilter,andotherconventionalunitscanmeettherequirements;
既有恒温恒湿要求,又需要净化等级控制的系统对空调机组的机外余压要求较高,一般系统总阻力在1100Pa~1400Pa之间,主要克服送回风管道、阀门、散流器、初效过滤器(初阻力50Pa,终阻力100Pa)、中效过滤器(初阻力150Pa,终阻力300Pa)、高效过滤器(初阻力250Pa,终阻力500Pa)等,常规的机组就无法满足要求。如系统需要设置二次回风,洁净式恒温恒湿机组就无法选用;一次回风的情况,恒温恒湿机组+加压箱的设计形式,由于在选择加压风机的型号时无法与恒温恒湿机组内的风机很难匹配,不同型号、不同功率的风机在串联或并联时总风量不是简单的相加,计算相对较复杂;建议在一般设计过程中尽量设计为单风机系统。
Thesystemnotonlyhastherequirementofconstanttemperatureandhumidity,butalsoneedsthesystemofpurifyinggradecontroltohavehighexternalpressurerequirementforairconditioningunit.Thegeneralsystemresistanceisbetween1100Paand1400Pa,whichmainlyovercomestheairsupplyandreturnpipe,valve,diffuser,initialeffectfilter(initialresistance50Pa,finalresistance100Pa),middleeffectfilter(initialresistance150Pa,final).Resistance300Pa),highefficiencyfilter(initialresistance250Pa,finalresistance500Pa)andsoon,conventionalunitscannotmeettherequirements.Ifthesystemneedstosettworeturnair,thecleantypeconstanttemperatureandconstanthumidityunitcannotbeselected;thefirstreturnaircondition,thedesignformoftheconstanttemperatureandconstanthumidityunit+pressurizationbox,becauseitisdifficulttomatchthefanintheconstanttemperatureandhumidityunitwhenchoosingthetypeofthepressurefan,thedifferenttypeanddifferentpowerfanareinseriesorparallel.Whenthetotalairvolumeisnotsimplyadded,thecalculationisrelativelycomplex.Itissuggestedthatthesinglefansystemshouldbedesignedasfaraspossibleinthegeneraldesignprocess.
系统的运作原理
Theoperatingprincipleofthesystem
恒湿恒湿机系统的运作是通过三个相互联系的系统:制冷剂循环系统、空气循环系统、电器自控系统;
Theoperationoftheconstanthumidityandhumiditymachinesystemisbasedonthreeinterrelatedsystems:refrigerantcirculationsystem,aircirculationsystem,andelectricalapplianceautomaticcontrolsystem.
1,制冷剂循环系统
1,refrigerantcirculationsystem
蒸发器中的液态制冷剂吸收空气的热量(空气被降温及除湿)并开始蒸发,比较终制冷剂与空之间形成一定的温度差,液态制冷剂亦完全蒸发变为气态,后被压缩机吸入并压缩(压力和温度增加),气态制冷剂通过冷凝器(风冷/水冷)吸收热量,凝结成液体。通过膨胀阀(或毛细管)节流后变成低温低压制冷剂进入蒸发器,完成制冷剂循环过程。
Theliquidrefrigerantintheevaporatorabsorbstheheatoftheair(theairiscooledanddehumidified)andbeginstoevaporate,eventuallyformingacertaintemperaturedifferencebetweentherefrigerantandtheair,andtheliquidrefrigerantiscompletelyvaporizedintothegaseousstate,thenthecompressorisinhaledandcompressed(pressureandtemperatureincreases),andthegaseousrefrigerantpassesthecondenser(aircooling/water).Cold)absorbsheatandcondensesintoaliquid.Throughtheexpansionvalve(orcapillary)throttling,thecryogeniclowpressurerefrigerantenterstheevaporatortocompletetherefrigerantcirculationprocess.
2,空气环系统
2,airloopsystem
风机负责将空气从回风口吸入,空气经过蒸发器(降温、除湿),加湿器,电加热器(升温)后经送风口送到用户需的空间内,送出的空气与空间内的空气混合后回到回风口。
Thefanisresponsibleforinhalingtheairfromtheairinlet.Theairpassesthroughtheevaporator(cooling,dehumidification),humidifierandelectricheater(ShengWen).Theairissenttotheuser'sspaceaftertheairinlet.Theairsentoutandtheairinthespacewillbemixedbacktotheairvent.
3,电器自控系统
3,electricalautomaticcontrolsystem
包括电源部分和自动控制部分。电源部分通过接触器,对压缩机、风扇、电加器器,加湿器等供应电源自动控制分部分又分为温、湿度控制及故障保护部分:温、湿度控制是通过温、湿度控制器,将回风的温湿度与用户设定的温湿作对比,自动运行压缩机(降温、除湿),加湿器,电加热(升温)等元件,实现恒温恒湿的自动控制
Itincludesthepowersupplypartandtheautomaticcontrolpart.Throughthecontactor,thepowersupplyisdividedintothetemperature,humiditycontrolandthefaultprotectionpartsofthecompressor,thefan,theadderandthehumidifier.Thetemperatureandhumiditycontrolisthroughthetemperatureandhumiditycontrol,andthetemperatureandhumidityofthereturnairiscomparedwiththetemperatureandhumiditysetbytheuser,andthecompressorisautomaticallyrun.Temperature,dehumidification,humidifier,electricheating(ShengWen)andothercomponentstoachieveautomaticcontrolofconstanttemperatureandhumidity.
咨询热线
133-5299-3419