采暖毕业设计说明书采暖毕业设计说明书.doc

毕业设计（论文） 兰州市黄河5号楼采暖及换热站设计 Heating and heat transfer station design of the Yellow River Building No. 5，Lanzhou 长 春 工 程 学 院 摘 要 随着我国城市建设事业的发展，以及国家对于能源与环境保护的要求，供暖系统的规模从单幢采暖系统发展成为中大型区域集中供暖系统，出现了大量住宅，公共建筑的集中供暖系统。集中供暖在节能和坏境保护方面都有很大的优势，发展速度很快。 本设计为兰州市市一栋办公楼的供热及换热站设计。采暖部分为二十二层，高84米。 设计用城市热力管网提供的95℃热水为热源，定压水泵定压。根据办公楼的结构、各房间用途及经济性和技术可行性比较，采用了竖向分三区，各区又分两个环路，采用双管顺流下供下回同程式热水采暖系统。通过围护结构的传热系数计算、各采暖房间热负荷计算、房间散热器的选择与计算、系统管路的水力计算，同时还考虑了安全可靠、经济合理、节能等方面的要求，使该建筑较好的满足了采暖要求。 换热站的设计主要包括设备的布置，定位尺寸确定，换热器的计算选型，循环水泵和补水泵的计算选型以及辅助设备的选择计算。 关键词 ： 集中供热，热负荷，水力计算,换热器  Abstract With the development of city construction in our country, and national requirements for energy and environmental protection, heating system scale from a single building heating system developed into large regional central heating system, the emergence of a large number of residential, central heating system of public buildings. The central heating has a lot of advantages in energy saving and environmental protection, the development speed is very fast. The design for the design of heating Lanzhou City office buildings and heat exchange station. The heating part is divided into twenty-two layers, 84 meters high. Design of city heating network with 95 ℃ hot water as a heat source of constant pressure, constant pressure pump. Comparison of structure,according to the office of each room use and the economic and technical feasibility, the vertical divided into three zones, the district is divided into two loops, the double pipe next time for the next program with hot-water heating system. Hydraulic calculation of the heat transfer coefficient of building envelope, the calculation of heating the room heat load calculation, selection and calculation of the room radiators, the pipeline system, but also considering the safety, economical, energy-saving and other requirements, so that the building can meet the heating requirements. Design of heat exchange station includ