暖通空调设计-毕业设计说明书

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武汉科技大学本科毕业设计I摘要本设计为哈尔滨望江集团办公楼空调系统工程设计。哈尔滨望江集团办公楼属中小型办公建筑,本建筑总建筑面积4138m2,空调面积2833m2。地下一层,地上八层,建筑高度33.9m。全楼冷负荷为191千瓦,全楼采用水冷机组进行集中供给空调方式。此设计中的建筑主要房间为办公室,大多面积较小,且各房间互不连通,应使所选空调系统能够实现对各个房间的独立控制,综合考虑各方面因素,确定选用风机盘管加新风系统。在房间内布置吊顶的风机盘管,采用暗装的形式。将该集中系统设为风机盘管加独立新风系统,新风机组从室外引入新风处理到室内空气焓值,不承担室内负荷。风机盘管承担室内全部冷负荷及部分的新风湿负荷。风机盘管加独立新风系统由百叶风口下送和侧送。水系统采用闭式双管同程式,冷水泵三台,两用一备;冷却水泵选三台,两用一备。在冷负荷计算的基础上完成主机和风机盘管的选型,并通过风量、水量的计算确定风管路和水管路的规格,并校核最不利环路的阻力和压头用以确定新风机和水泵。依据相关的空调设计手册所提供的参数,进一步完成新风机组、水泵、热水机组等的选型,从而将其反应在图纸上,最终完成整个空调系统设计。关键词:风机盘管加独立新风系统;负荷;管路设计;制冷机组:冷水机组武汉科技大学本科毕业设计IIAbstractThedesignfortheHarbinWangjiangDesignGroupofficebuildingairconditioningsystem.HarbinWangjiangGroupisasmallandmedium-sizedofficebuildingofficebuildings,thetotalfloorareaofbuildingis4138m2,air-conditionedareais2833m2.Thereareeightfloorofthebuilding,buildingheightis33.9m.Coolingloadfortheentirefloor,191kilowatts,thewholefloorusingCentralCoolingChillerstofocusontheway.Thisdesignofthemainroomofthebuildingforoffice,mostofthemisverysmall,andtheroomsarenotconnected,theselectedair-conditioningsystemshouldbeabletoachieveindependentcontrolofeachroom,consideringthevariousfactorstodeterminetheselectionoffan-coilplusfreshairsystem.Arrangementintheroomceilingfancoilunits,usingthedarkformofequipment.Setthefocusonfan-coilsystem,plusanindependentairsystem,freshairfromtheoutdoorunittodealwiththeintroductionofanewwindtotheindoorairenthalpyvalue,donotbeartheloadofindoor.Allbeartheindoorfan-coilcoolingloadandpartofitsnewrheumatoidload.Fan-coilplusanindependentairsystemsentbytheVenetianandtheundersideairdelivery.Closedwatersystemwithadual-trackprogram,threecold-waterpump,dual-useaprepared;coolingpumpsthreeelections,onepreparedbydual-use.Inthecoolingloadcalculationbasedonthecompletionoftheselectionofhostandfancoilunits,andairvolume,thecalculationofwater,thewindpipeandwaterpipestodeterminethespecificationsoftheroadandchecktheresistancetothemostdisadvantagedandthelooptodeterminethepressureheadnewfansandpumps.Basedontherelevantmanualsprovidedbyair-conditioningdesignparameters,andfurthercompletionofthenewairunits,waterpumps,hotwaterunits,suchastheselection,whichwillbereflectedintheirdrawings,thefinaldesignoftheentireair-conditioningsystemKeywords:PAU+FCUsystems;load;pipelinedesign;refrigerationmachine;Chillers武汉科技大学本科毕业设计III目录摘要...................................................................IAbstract................................................................II目录..................................................................III1设计依据..............................................................11.1设计任务书.......................................................11.2建筑平面图和剖面图...............................................11.3国家主要规范和行业标准:.........................................11.4哈尔滨市设计计算参数:...........................................11.4.1室外计算参数...............................................11.4.2室内计算参数...............................................11.4.3其他设计参数...............................................11.5建筑围护结构的热工性能...........................................21.5.1外墙.......................................................21.5.2内墙.......................................................31.5.3屋面.......................................................41.5.4外门.......................................................41.5.5外窗.......................................................41.6设计范围:.......................................................51.7设计原则:.......................................................52负荷计算..............................................................62.1空调冷负荷的计算.................................................62.1.1外墙冷负荷与屋面冷负荷:....................................62.1.2玻璃窗瞬变传热引起的冷负荷:...............................62.1.3透过玻璃窗进入的日射得热引起的冷负荷:.....................72.1.4照明散热引起的冷负荷:.....................................72.1.5人员散热引起的冷负荷:.....................................72.2调热负荷的计算:................................................122.3空调湿负荷的计算:..............................................143系统选择.............................................................153.1冷热源选择:....................................................153.1.1选择冷热源系统的基本原则:................................153.1.2冷热源系统方案的比较......................................153.1.3冷热源系统方案的确定......................................163.2空调系统的选择..................................................163.2.1空调系统设计的基本原则....................................163.2.2空调系统方案的比较........................................173.3空调系统方案的确定:............................................184新风负荷的计算.......................................................194.1新风量的确定....................................................19武汉科技大学本科毕业设计IV4.2空调新风冷负荷的计算:..........................................195空气处理设备的选择...................................................215.1风机盘管的选择:................................................215.1.1风机盘管处理过程..........................................215.1.2风机盘管的选取............................................225.1.3风机盘管的布置................................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