1、摘 要目前，随着我国经济的逐步增长，人们对居住条件生活环境的舒适性的要求越来越高，对中央空调的需求越来越大，对中央空调节能、舒适、健康更加关注。根据天津市的能源使用现状及目前的经济发展水平，从节能的角度出发进行设计，为人们提供一个舒适、安全、卫生的工作环境。本设计是济南市某综合商场空调工程设计，该建筑物一层层高为6.2米，二层到五层的层高为4.6米。根据合理利用能源的原则，因地制宜，在比较各种方案的可行性后，选择一个技术可靠，经济合理，管理方便的设计方案。最终确定方案为：采用风机盘管加新风系统，本建筑物采用离心式冷水机组作为冷源。水系统选择闭式、水平同程、垂直异程式、双管制、单级泵，定流量系统
2、。设计内容包括: 空调负荷的计算；空调系统方案的确定；送风状态及送风量的确定；冷源的选择；空调末端处理设备的选型；风系统的设计与计算；室内送风方式与气流组织形式的设计及校核；水系统的设计及计算；风管系统与水管系统保温层和防腐设计；消声防振设计等内容。关键字：；中央空调系统；风机盘管加新风系统； 性能比较AbstractAt present, with Chinas economic growth, peoples requirements for living conditions and living environment are higher and higher, for centra
3、l air-conditioning are larger and larger, pay more attention to central air-conditionings energy-efficient, comfort and health. According to the status quo of energy use of tianjin and current economic development level, from the angle of energy-saving design, provide people with a comfortable, safe
4、, hygienic work environment.This design is a office building of jinan of air conditioning engineering design. The building has 4 layers. The first layer is m6.2eters tall, the 2nd to 4th layer is 4.6 metres tall.According to the principle of rational utilization of energy, adjust measures to local c
5、onditions, after comparing various schemes feasibility, choose a technology-reliable, economic-rational and management-convenient design scheme The of final scheme for: the space adopt primary air fancoil system, this building adopts screw aquachill unit as cold source, regional heating plant as hea
6、t source. Water system choice closed, horizontal reverse-return system, vertical direct return system, two-pipe system., single-stage pump, variable flow system. Design content includes: Air conditioning load calculation and system scheme determination,;Supply air conditional point and delivery dete
7、rmination; The cold source choice; Air conditioning terminal device handler choice; The wind system design and calculation,; Indoor air supply method and air distribution design and check; Water system design and calculation; Air-line system and water system heat-insulating layer design and anticorr
8、osion protecting design; Sound reduction and antivibration design,etcKey words: The central air conditioning system, Primary air fancoil systems, Performance comparison目录绪论. 1设计目的. 1设计概述. 1设计任务. 11 设计依据. 21.1设计任务书.21.2设计规范及标准.21.3土建资料.21.4气象资料.31.4.1夏季参数.41.4.2冬季参数.41.5室内设计参数.41.6设计原则.41.6.1空调设计.41.
9、6.2通风设计.42 设计方案的比较与确定. 52.1设计方案的比较.52.2方案的确定.92.3风机盘管机组的结构和工作原理.93 空调系统冷负荷计算.113.1冷负荷构成及计算原理.113.1.1维护结构瞬变传热形成冷负荷的计算方法.113.1.2透过玻璃窗的日射得热形成的冷负荷 .133.1.3 透过外玻璃门的日射得热形成的冷负荷. 143.1.4 人员散热引起的冷负荷. 143.1.5照明散热引起的冷负荷. 153.1.6 设备散热形成的冷负荷. 153.1.7 新风冷负荷. 163.2 空气调节区的冷负荷.163.3 空气调节系统的冷负荷.173.4 空调湿负荷.174 空调热负荷计算.174.1 空调热负荷的计算原理 .194.2 围护结构的基本耗热量引起的热负荷.194.3 修正基本耗热量.194.4 热负荷计算实例.205 空调机组选型. 215.1 风机盘管选型计算.215.2 风机盘管的布置.225.3 新风机组的选型.225.4 新风机组的布置.236 空调风系统. 246.1 空调系统的风道.246.1.1 风道材质.246.1.2 风道选择.246.2 风口及气流组织.
