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1、摘要本次设计的内容是某城市邮局综合楼中央空调系统供冷、供热系统的设计,其目的是通过对中央空调系统的设计,来了解中央空调系统的设计流程及具体的方法,进而巩固所学的基础知识。首先,查阅设计地点的地理资料得出相应的气象条件,根据当地具体的条件以及维护结构计算夏季整个系统的冷负荷。考虑经济因素,采用现在经常使用的一次回风加新风的风机盘管系统。总共五层,每层单独用一个空气-水风机盘管系统,全部房间均采用风机盘管加新风系统的方案。新风由新风机组处理到室内焓值,通过送风管道,送至风机盘管回风段,同风机盘管送风混合后经风机盘管送出,改善室内卫生条件。根据系统所需的冷量,选用空调机组,计算风管管径
2、。因为此建筑主要是办公之用,没有专门的空调机房,但是屋面有开阔的地方,充分考虑和根据系统所需冷量选取一台风冷模块热泵机组,为了提高水力稳定性,使流量均匀分配,水系统管路采用膨胀水箱补水和定压。另外还阐述了空调系统的消声和防振,使之运行达到经济合理的要求。同时,在相应的计算过程中,根据设计的过程及计算结果运用CAD绘制一层至五层空调水管、风管平面图,及空调水系统图、空调机房平面图。通过本次设计使室内环境得到改善,达到了设计要求,以确保室内空气的清洁。-I-tAbstractThedesignofthecontentofthepostofficecomplexbuildinginZh
3、engzhouCity,centralairconditioningsystemcooling,heatingsystemdesign,itspurposeisthedesignofcentralairconditioningsystem,centralairconditioningsystemtounderstandthedesignprocessandspecificmethods,therebystrengtheningthelearnthebasics.Firstofall,accesstodesignthegeographicalinformationtodrawthe
4、appropriateweatherconditions,accordingtolocalspecificconditionsandthemaintenanceofstructuralcalculationsofthesummercoolingloadofthesystem.Considereconomicfactors,arefrequentlyusedbyareturnairfancoilsystemplusthenewwind.Atotaloffive,eachwithaseparateair-waterfancoilsystem,allroomsarewithfancoi
5、lplusfreshairsystemsolution.Newairhandlingunitsfromthenewtotheindoorairenthalpy,throughtheairsupplypipe,senttothefancoilreturnairsection,airmixingwiththefancoilbycoilsent,toimproveindoorhealthconditions.Coolingcapacityrequiredforthesystem,airconditioningunitsusedtocalculatethewindpipediameter
6、.Becausethebuildingismainlyofficeuse,nospecialair-conditionedroom,butWumianhaveopenarea,fullyconsiderandselectthesystemcoolingcapacityrequiredforacooledheatpumpmodule,inordertoimprovethehydraulicstability,theflowrateevenlydistributed,watersupplywatersystempipingandtheuseofconstantpressureexpa
7、nsiontank.Air-conditioningsystemalsodescribesthemufflerandvibration,soruntotherequirementsofeconomicrationality.Meanwhile,inthecorrespondingcalculation,calculatedaccordingtothedesignprocessandapplytheresultsCADdrawinglayertofiveair-conditioni