赣州市某医院中央空调工程设计说明书.doc

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摘要

本次设计的内容是赣州市某医院全年性中央空调工程的设计，其目的对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及维护结构计算整个系统的空调负荷。综合空调系统及医院建筑空调系统的使用特点，采用风机盘管加新风系统。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，与风机盘管的送风并联送出。根据系统所需新风量，计算风管管径及风机所需余压选用新风机组。再根据系统所需冷量选取两台水冷螺杆式冷水机组，为了提高水力稳定性，使流量均匀分配，水系统管路在分集水器之间设置了旁通管和压差平衡阀。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绘制各层空调水系统平面图，空调风系统平面图、水系统余力图、制冷机房平面布置图、冷水机组系统流程图等。

通过本次设计使室内环境得到改善，达到了设计要求。

关键词中央空调系统；风机盘管；新风系统；水系统；室内焓值

Abstract

ThedesignoftheGanzhouahospitalintheyear-roundcentralair-conditioningengineeringdesignanditspurposethroughthedesignofcentralairconditioningsystem,centralairconditioningsystemdesignprocessandspecificmethods,therebystrengtheningthebasicsoflearning.First,thegeographicaccesstodesignlocationalwaystalktodrawtheappropriateweatherconditions,accordingtothespecificlocalconditionsandtomaintainthestructuralcalculationsoftheairconditioningloadoftheentiresystem.Usecharacteristicsofair-conditioningsystemsandhospitalsbuildingairconditioningsystems,fancoilplusfreshairsystem.Allroomsarefancoilplusfreshairsystemprograms.Thenewwindfromthenewairhandlingunittotheindoorenthalpy,sendairinparallelwiththefancoil.Accordingtotherequiredfreshair,thecalculatedductdiameterandfanresidualpressurerequiredtheuseofnewairhandlingunit.Twowater-cooledscrewchillerisselectedaccordingtothesystemcoolingcapacityrequired,inordertoimprovethehydraulicstabilityoftheuniformflowdistribution,thewatersystempipingsetinthesub-catchmentbetweenthebypasspipeandpressurebalancevalve.Italsodescribedthemufflerandvibrationoftheairconditioningsystemtomakeitrunthereasonablerequirementsoftheeconomy.Meanwhile,inthecalculationprocess,accordingtothedesignprocessandthecalculationresultsusingCADdrawinglayersofair-conditioni