某办公楼中央空调系统设计毕业论文

毕业设计（论文）题目名称：北京某办公楼中央空调系统设计学院名称：能源与环境学院班级：学号：学生姓名：指导教师：年月日论文编号：北京某办公楼中央空调系统设计Thecentralairconditioningsystemdesignofofficebuilding学院名称：能源与环境学院班级：学号：学生姓名：指导教师：年月日摘要本工程为北京某办公楼中央空调系统，拟为之设计合理的中央空调系统为室内人员提供舒适的工作环境。建筑共五层，总面积为4365㎡，层高4.0m。设计内容包括：空调冷负荷计算；空调系统划分与系统方案的确定；风系统的设计与计算；室内送风方式与气流组织形式的确定；风管系统保温层的设计；消声防震设计等内容。空调设计中，大空间采用全空气一次回风的空气处理方案，从节能的角度考虑，采用露点送风。空气处理机组设在每层的空调机房内，新回风经集中处理后送入各空调房间。气流组织采用上送上回的气流组织形式，送风口选用方形散流器，回风口采用单层百叶回风口。其余空调房间因面积较小，采用风机盘管加新风系统，将室外新风处理到低于室内空气焓值的状态，承担室内全部湿负荷和部分冷负荷。新风由设置在走廊内的吊顶新风机组处理后送入各房间。风机盘管送风选用侧送式，安装形式为卧式暗装。空调用制冷机房设在地下室，选用一台螺杆式冷水机组。夏天使用冷水机组提供的7/12℃的冷水。水管路采用两管制。冷却塔置于屋顶，配一台。关键词：办公楼，全空气系统，风机盘管系统，性能比较1AbstractThisworksforabetweenproductioninbeijingcentralair-conditioningsystem,soastocreateacomfortableworkenvironmentforthestuff.Constructionof5layer,thetotalareaof4365㎡,thelayeris4.0m.Itcontains:coolingloadcalculation;airconditioningsystemdivisionandsystemsolutionstodeterminethe;thewindsystemdesignandcalculation;indoorairdistributionmodeandtheairfloworganizationformofsure;ductsystemdesignofinsulationlayer;noiseandvibrationcontrol,etc.Inairconditioningdesign,1Fusetheentireairtimetoreturntothewindtheairprocessingplan.Fromenergyconservationangleconsideration,Usesthedewpointblast.Theairprocessingunitislocatedineachlevelintheairconditioningengineroom,New、returnstothewindtosendinvariousairconditionedroomaftercentralismprocessing,Theaircurrentorganizationformusedondeliverstheotherday,Deliversthegustyareatoselectsquareshapedrifting.Returnstothegustyareatousethemonolayerdriftingtoreturntothegustyarea.Otherairconditionedroomsbecausetheareaissmaller,Usestheairblowerplatetubetoaddthenewatmospheresystem,Outsidethenewatmospherewillprocesstoislowerthanintheroomtheairenthalpyvaluecondition,Undertakesintheroomcompletelythewetloadandthepartialcoldloads,Thenewatmospherebyestablishesthesuspendedceilingnewatmosphereunitprocessesafterthecorridorsendsinvariousrooms,Theblastusesdouble-deckeddriftingdeliversthegustyarea,Theairblowerplatetubeblastselectsthesidetodeliverthetype,installstheformforthehorizontal-typedarkattire.TheAirconditioningrefrigerationengineroomislocatedinthebasement,Selectstwoscrewrodstypescoldwaterunit,Summeruses7/12coldwaterwhichthecoldwaterunitprovides,Thewaterpipelineusestwo.Thecoolingtowersetstotheroof,eachcoldwaterunitrespectivelymatches.Keyword：OfficebuildingcoilsystemPerformancecomparison.2目录符号单位说明..................................................................................................51引言............................................................................................................72工程概况......................................................................................................82.1建筑相关资料....................................................................................82.2室外设计参数....................................................................................82.3室内设计参数....................................................................................93空调负荷计算...........................................................................................103.1围护结构瞬变冷负荷计算原理......................................................103.1.1外墙和屋面瞬变传热引起的冷负荷..................................103.1.2外窗瞬变传热引起的冷负荷..............................................103.1.3设备及照明散热形成的冷负荷..........................................113.1.4人体散热形成的冷负荷：.................................................113.2湿负荷..............................................................................................114空调系统方案的确定...............................................................................174.1空调系统的分类............................................................................174.1.1按照空气处理设置的情况分类.......................................174.1.2按负担室内负荷所用的介质种类分类...........................174.1.3根据集中空调系统处理的空气来源分类.......................184.2方案比较.......................................................................................184.2.1全空气系统与空气－水系统方案比较...........................184.2.2风机盘管+新风系统的特点.............................................194.2.3一次回风系统特点...........................................................204.3.1空调系统的选择原则.......................................................204.3.2空调系统选择结果...........................................................205新风量的确定...........................................................................................225.1各房间送风状态的确定...................................................................225.2风机盘管加新风...............................................................................225.3一次回风系统..................................................................................255.3.1一次回风回风量的确定方法...........................................265.3.2新风冷负荷.......................................................................265.3.3一次回风负荷计算...........................................................265.4空调房间气流组织...........................................................................275.4.1风机盘管加新风..................................................................276冷