冷热源工程课程设计汇本.doc

《冷热源工程课程设计汇本.doc》由会员上传分享，免费在线阅读，更多相关内容在应用文档-天天文库。

1、《冷热源工程》课程设计计算书题目：市光明大酒店制冷机房设计姓　　名：　　　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：201451385236指导教师：　　　　超　　　　2017年6月23日目录（1）设计原始资料············································1（2）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························2

2、2.1.2方案二采用16DNH_开利溴化锂吸收式冷水机组················32.1.3方案三采用美的离心式冷水机组····························42.2技术性分析············································52.3方案选择··············································7（3）分水器和集水器的选择3.1分水器和集水器的构造和用途···························73.2分水器和集水器的尺寸··················

3、··············83.2.1分水器的选型计算····································83.2.2集水器的选型计算····································8（1）膨胀水箱配置和计算4.1膨胀水箱的容积计算····································84.2膨胀水箱的选型·······································9（2）冷冻水系统的设备选型和计算5.1冷冻水系统的选型和计算································

4、95.1.1冷冻水泵流量和扬程的确定····························175.1.2冷冻水水泵型号的确定································125.2冷却水系统的选型和计算································135.2.1冷却塔的选型········································135.2.1冷却水泵的选型计算··································13（1）个人小结·································

5、···········17（2）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、当地可用的能源情况：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

6、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=12.6

7、6(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=36.3+6.49+63.3=106.09万元方案二：采用R22满液式螺杆冷水机组（L