文档介绍：摘要
本文是对北京市某办公楼进行的采暖系统设计,目的是使办公楼内各房间的空气温度达到一定标准,满足人员的舒适性要求。
本文在简述国内外采暖技术现状的基础上,对办公楼进行了采暖设计。本设计采用了上供下回单管顺流式热水供暖系统。本系统的设计供回水温度采用95/70℃。这种系统的优点是形式简单,施工方便,造价低,是国内一般建筑物广泛应用的一种形式。缺点是不能进行局部调节。由于本采暖系统作用半径不大,故采用了异程式。
本设计的主要内容包括:设计热负荷的计算(其中包括围护结构的传热耗热量和冷风渗透耗热量)、散热器的选用与计算、水力计算和绘制采暖施工图。水力计算采用了等温降法,施工图按照采暖设计规范,使用Auto CAD软件进行绘制。最后,对系统进行了简单的经济性分析。
关键词:采暖设计;热负荷;水力计算;施工图
Abstract
This paper is about heating system design for a working building in Beijing. The purpose of this design is to control air temperature in the permissible range, which can satisfy people’fort demand.
On the base of summarizing the work status on the heating system home and abroad, the heating system for an working building is designed. One-pipe system in which the hot water flows from up to down is designed in this system. Water temperature supplied is 95℃ and the back temperature is 70℃. The merit of this kind of system is that the form is simple, the construction is convenient, and the construction cost is low. So it is popular for internal generic building. The demerit is that the system can not adjust locally. The separate-rule style is adopted because the functionary radius of heating system is not big.
The main contents of this design includes: designing heat load calculation which includes the heat transfer loss of enclosure and the cool air infiltration loss, calculation and choice of heat exchanger, hydraulic calculation and drawing heating construction documents. The hydraulic calculation adopts isothermal drop method. According to heating design norm, the construction documents are drawn with Auto CAD. In the end, the simple economic analysis of the system pleted.
Keywords: Heating design; Heating load; Hydraulic calculation; Construction document
目录
摘要 I
Abstract II
1 绪论 1
国内外采暖技术的研究现状 1
本课题的研究目的及意义 6
2 供暖系统设计热负荷 7
围护结构的基本耗热量 8
围护结构的附加(修正)耗热量 10
冷风渗透耗热量 11
房间设计热负荷的计算 13
3 散热器的选用与计算 40
散热器的选用 40
供暖系统方式的确定 40
散热器的计算 44
4 水力计算 54
5 供暖系统经济性