毕 业 设 计
题目：内蒙古鄂尔多斯市某酒店地
热空调设计
系 别： 建筑环境与能源工程系 专 业： 建筑环境与设备工程 姓 名： 何 兆 会 学 号： 072707123 指导教师： 周 恒 涛
河南城建学院
2011年5月13日
河南城建学院毕业设计 摘要
内蒙鄂尔多斯市某酒店中央空调系统设计
摘要
本设计为鄂尔多斯市某酒店中央空调系统设计，酒店建筑面积约为17988.4㎡，空调面积约为8883.7㎡，共15层，建筑总高度53米，其中第一层4米，其余层高为3.5米。此次设计内容包括冷热负荷的计算，系统方案的比较确定，空气处理方案的选择，空调末端设备选型，空调系统水力计算，气流组织设计计算及机房主要设备选型，地下水换热系统和热源井系统设计，并进行设计说明书的编写和施工图的绘制。设计坚持可持续发展理论，树立了节约能源和全寿命周期成本分析的科学理念。根据节能设计标准要求，结合计算软件，采用谐波反应法对整个大楼进行冷负荷的逐时计算，利用热泵技术和地下水水温常年基本恒定，通过多个方案可行性论证和经济性比较，本设计采用水冷螺杆热回收水源热泵机组，闭式地下水换热系统及深井压力回灌的井水回灌方式，1：1.5抽灌比；空调系统采用风机盘管加独立新风的空气—水系统，新风不承担室内负荷，与风机盘管不共用出风口；一层水系统采用闭式异程两管制。最后对空调系统的消声、减振和保温进行了设计。
本设计通过对地下水、热泵机组及热回收技术的应用，充分体现了中央空调系统节能环保、运行费用低、使用年限长的优点。
关键词：中央空调系统 可持续发展 节能环保 运行费用低 使用年限长 地下水
源热泵 热回收 风机盘管加新风
河南城建学院毕业设计 摘要
Central air-conditioning system design of certain hotel of Hefei
Abstract
This design is about the central air-conditioning system design of certain hotel of EerduoSi.It covers an area of 17988.4 square metres,and air conditioning area is about 8883.7 square metres.Hotel has eight stories.Construction total height is 53 metres with ground floor 4.0 metres, the rest height between floors 3.5 metres.A series of design contents include cooling and heating load calculation,system scheme comparison and determination ,selecting airhanding scheme and end equipment, air distribution and hydraulic calculation,the main choices of air terminal devices of machinery room,groundwater system and heat source well design,as well as working out the design instruction and drawing the construction drawings employing CAD.During the design,I adhere to sustainable development,set a scientific concept of resources and a total life cycle cost analysis.According to energy-efficient design standards,the cooling load of the whole building is calculated with the harmonic wave method,combining to computer software.Taking advantage of the technology of heat pump and invariable groundwater temperature,water cooled screw rod heat pump chiller with heat recovery is used to supply the cooled air conditioning water,while using closed groundwater system and pressure injection with the proportion of 1:2 as cooling water circulation.This scheme is determinated according to the feasibility analysis and economical comparison of different choices.Fan coil unit and the independent fresh air system is the main choice in this design.The fresh air system doesn’t undertake load indoor,sharing air outlet with fan coil unit.Water system is to adopt the same path of the two hoses.Finally,this design is about noise elimination,decreasing vibration and heat preservation.
According to the application of groundwater,heat pump chiller and heat recovery,this design fully exemplifies central air-conditioning system’s advantage of energy-concerving and environment-protective,low operating cost and long tenure of
河南城建学院毕业设计 摘要
use.
Keywords:
central air-conditioning system,sustainable development, energy-concerving and environment-protective,low operating cost , long tenure of use,groundwater-source heat pump chiller,heat recovery,fan coil unit and fresh air system.
河南城建学院毕业设计 目录
目 录
1 绪 论...................................................................................................................... 1
1.1设计目的 .................................................................................................................... 1 1.2 主要内容和基本要求 ................................................................................................... 1
2 设计基本资料.......................................................................................................... 2
2.1工程概况 .................................................................................................................... 2 2.2设计参数 ..................................................................................................................... 2
3 负荷计算.................................................................................................................... 6
3.1冷负荷计算方法 ........................................................................................................... 6 3.2空调冷负荷计算 ........................................................................................................... 6 3.3空调湿负荷计算 .......................................................................................................... 8
4 设计方案的比较及确定............................................................................................ 9
4.1空调末端系统方案比较 ................................................................................................ 9 4.2 空调水系统方案比较确定 ...........................................................................................10 4.3制冷机组的种类及特点 ...............................................................................................11 4.4 地下水换热系统比较确定 ...........................................................................................13
5 空调末端设备的选择.............................................................................................. 13
5.1风机盘管选型计算 ......................................................................................................14 5.2新风机组选择计算 ......................................................................................................19
6 空调系统水力计算................................................................................................ 23
6.1空调风系统水力计算...................................................................................................23 6.2空调水系统水力计算...................................................................................................31
7 气流组织计算........................................................................................................ 34
7.1布置气流组织分布 ......................................................................................................34 7.2散流器选择计算 .........................................................................................................34 7.3 侧送风口选择计算 .....................................................................................................35
8 空调机房设备的选择及地下水换热系统的设计.................................................. 38
8.1空调冷热源的确定 ......................................................................................................38 8.2 泵的选择 ..................................................................................................................39 8.3 地下水换热系统的设计 ..............................................................................................41
9 热源井的设计........................................................................................................ 45