1、摘 要本次设计题目为杭州某办公楼暖通空调设计。此办公楼占地面积4095，空调面积3500，建筑高度为17.4m。本工程空调总冷负荷为291.5kw。 本设计对空调冷热源、空调方式、室内气流组织等方面的多种方案进行了比较，最后选择最佳方案。并在此基础上进行相关的计算、选用设备和校核参数等。该工程采用一种空调方式，办公室采用风机盘管加新风系统。卫生间用建筑自带的窗户进行自然通风。 本工程的冷源为活塞式冷水机组两台，一用一备。并且采用膨胀水箱定压。本设计的水系统为双管制。水管均布置为同程式，凝水就近排放。本工程属于办公类建筑，本次设计能够满足办公楼的舒适性和功能性要求。除此之外，本次设计还考虑了噪声
2、、隔声、减振及保温的要求。关键词 杭州 某办公大楼 全空气 风机盘管加新风系统 AbstractThe project is a design of ventilation and air condition for a Post offices of Yangzhou. The office covers 3500 , air-conditioning area of 4095, building height to 17.4m. And the entire cold load is 291.5kw.This design carried on a comparison of variou
3、s projects .which are air condition source of heating and cold, air condition method, indoor current of air organizationect. Base on the comparison, we choose the best project finally. Combine in this foundation, some related calculation ,the choosing of equipments and parameter checking ect are als
4、o being done. This project adopts three kinds of air condition methods: In the first floors, there are some big space as Business Hall, where adopt whole air system. In the 2-4floors, there are many offices, where adopt the fan coil and fresh air system. Bathroom change natural ventilation by the wi
5、ndows of itself. The source of the cooling and heating for this project is two Forced-air cooling heat pump cold hot water unit. And the system uses the inflation water tank to stable pressure. The water system of the building is dual-pipe system. This project belongs to the science and technology e
6、ducation class building, and this design can satisfy the offices comfortableness and the function request. In addition, this design had also considered the noise, the sound insulation, reduces inspires and keeps warm.Key words yangzhou post office all air The fan coil and fresh air system Air-cooled
7、 heat pump目 录1绪论7原始资料7执行规范92设计内容要求92.1设计内容92.2设计要求92.2.1图纸要求92.2.2说明书要求93空调负荷的计算103.1冷负荷为的计算103.1.1外墙传热冷负荷103.1.2外窗的温差传热冷负荷113.1.3外窗太阳辐射冷负荷113.1.4内围护结构的传热冷负荷113.1.5人体冷负荷113.1.6设备冷负荷123.1.7房间的总负荷123.2空调房间的湿负荷123.3热负荷的计算123.3.1围护结构的耗热量133.3.2门窗缝隙渗入冷空气的耗热量133.3.3各个房间的总热负荷133.3.4建筑空调房间的总热负荷143.4新风量的确定和新
8、风负荷143.4.1新风量的确定143.4.2计算新风负荷143.4.2.1夏季新风冷负荷143.4.2.2冬季新风热负荷143.5负荷汇总154空调冷热源的选择154.1工程概况154.2.1空调热源的选择155空调系统方案的确定155.1各层空调方式的确定155.1.1方案概述155.1.2确定原则175.1.3确定空调方式175.2空调设备的选择175.2.1各层个房间的风量计算及机组选型175.2.2冷水机组的选择计算175.3气流组织的设计175.3.1概述175.3.2空调送风口和回风口215.3.2.1送风口215.3.2.2回风口215.3.3空间气流分布的形式225.4末端设备的选择计算225.4.1散流器的选择计算
