冷热源工程课程设计冷热源工程课程设计冷热源工程课程设计《冷热源工程》课程设计计算书题目:嘉兴市光明大酒店制冷机房设计姓名:杨超学院:建筑工程学院专业:建筑环境与能源应用工程班级:建环１42学号:2指导教师:杨超201７年6月2３日目录设计原始资料············································1冷水机组选型２、１确定冷源方案··········································22、1、1方案一采用R22满液式螺杆冷水机组························２2、1、２方案二采用16DＮH_开利溴化锂吸收式冷水机组················32、1、3方案三采用美得离心式冷水机组····························42、2技术性分析············································52、3方案选择··············································7分水器和集水器得选择3、１分水器和集水器得构造和用途···························７３、2分水器和集水器得尺寸································83、2、1分水器得选型计算····································83、2、２集水器得选型计算····································８膨胀水箱配置和计算４、1膨胀水箱得容积计算····································84、２膨胀水箱得选型·······································9冷冻水系统得设备选型和计算５、1冷冻水系统得选型和计算································9５、1、1冷冻水泵流量和扬程得确定····························175、1、２冷冻水水泵型号得确定································125、２冷却水系统得选型和计算································135、2、1冷却塔得选型········································135、2、1冷却水泵得选型计算··································1３个人小结············································17参考文献············································171、设计原始资料１、空调冷负荷:0、8ＭW(空调总面积6500m2)2、当地可用得能源情况:电:价格:0、7元／度天然气:价格:2、5元/ｍ3;热值:３3、45MＪ/ｍ3;蒸汽:价格:18０元/吨;蒸汽压力为:0、8MPa燃油:价格:2、７６元/升;低位发热量均为:４２8４0kJ/kg3、冷冻机房外冷冻水管网总阻力分别为0、４0Mpa;０、35;0、3MＰａ;0、15MPa４、土建资料制冷机房建筑平面图(见附图),其中水冷式冷水机组冷却塔高度分别为:２5m;２０m;１5m;1０m2、冷水机组选型确定冷源方案方案一:采用1６DNＨ_开利溴化锂吸收式冷水机组(16DNH01２)表116ＤＮH_0１2开利溴化锂吸收式冷水机组参数型号1６DNH０12制冷量(KＷ)422台数2单价(万元)2５、32天然气燃料耗量(m３/h)２8、8外形尺寸L(mm)３63１W(mm)1880H(mm)2056冷冻水水量(m³/ｈ)91压降(Kｐa)89接管直径(DN)100冷却水水量(m³/h)141压降(Kpa)8３接管直径(ＤＮ)1２51)固定费用设备初投资:225、32=50、６4(万元)安装费用:25%50、６4=12、6６(万元)系统总投资费用L＝50、６4＋12、66＝６3、3(万元)银行年利率=5、9４%使用年限n=1５年=6、49万元式中:—每年系统折旧费用—系统总投资费用,包括设备初投资和安装费用—银行年利率2)年度使用费用单台设备功率为28、8m3/h,台数２台,天然气价格2、5元/m3,供冷月为6-9月份,按照每天24小时供冷计算年度运行费用=蒸汽耗量台数时间单价=28、822、512２24=３6、3万元3)设备年度费用设备年度费用=固定费用＋年度使用费用=36