1、 毕业设计（论文）报告纸 共 页 第 页 装 订 线 摘摘 要要 本次毕业设计的课题为宝鸡阳光城小区的供暖系统， 包括供热外网和换热站的设 计。该小区包括住宅楼与商业用楼，总建筑面积为 105410m2，热用户计算热负荷为 4849kW。小区换热站以城市供热管网 130/70的水为热媒，用地板辐射采暖，采暖 供回水温度为 55/45。首先，根据设计题目搜集资料，确定供热系统的相关方案。 包括集中供热系统的选择、枝状管网的确定、热负荷的计算、热媒的选择及其参数的 确定。然后，进行小区供热外网的设计。包括管道的敷设、管网中固定支架、阀门井、 补偿器等附件的位置与数量的确定，管道的保温，管网的水力计
2、算。通过水力计算确 定管网的管径以及压力损失，并进行不平衡率的计算，尽量使每段管线都能达到水力 平衡。接着，确定换热站系统流程；对换热器、循环水泵、定压水泵等主要设备进行 选型计算；合理布置所有的设备以及它们之间的管道。同样，还要对换热站内部进行 水力计算以求得各种管路的管径。最后，根据设计的供暖系统的特点提出合理有效的 运行调节方法，利用自控装置，将整个供热系统设计成为根据用户需要变质量流量运 行的智能系统。 关键词关键词： 供热外网；换热站；水力计算；运行调节 毕业设计（论文）报告纸 共 页 第 页 装 订 线 Abstract This is a heating system desig
3、n about one district in Bao Ji, which includes outdoor heating pipe network and heat transfer station. The district contents residence building and business building, the total constructiong area is about 105410 m2 and heat load is about 4849kW. In the heating system, the heat transfer station which
4、 takes 130/70high temperature heat medium as high temperature heat medium and 55/45 water circulating water as heat-supplying-medium. Firstly, needing to collect some information basis the design subject, and confirming the correlation scheme about the heating system. It contents the option of the c
5、oncentrate heating system, the confirming of branch pipeline network, the calculate of the heating system, the choosing of heat medium and its parameter. Secondly, putting up the design about the outdoor heating pipe network. It contents the laying of pipe, defining the position and number of the ac
6、cessories such as fixed supports, valve wells and compensators, the defining of the pipeline, the hydraulic computation of the pipeline . Through the hydraulic computation, we can confirm the diameter of the pipling and the pressure lossing, computing the hydraulic unbalance rate in order to make the hydraulic balance on every pipling. Then,
