土壤源热泵系统井群均匀布水初步研究

Preliminary Study on Water Distribution Uniformity of Ground-coupled Heat Pump Well Group

从水系统的角度来研究土壤源热泵系统的井群水流量分配,根据流体力学的基本原理,提出了一种基于图论理论构建土壤源热泵系统室外管网的拓扑结构,并采用HardyCross方法进行管网平差,且借助于Mat l ab语言编制程序。以安徽省池州市洪森国际大厦土壤源热泵系统为例,对连接管网不同布置形式进行比较分析,可知通过改变管路连接方式或者调整管径的大小,均可使井群流量达到均匀分布,此方法对工程实践有指导意义。

From the perspective of water system, this paper researches on water distribution uniformity of Ground-coupled Heat Pump well group. According to the basic principles of the fluid mechanics, this paper establishes a topological structure of pipe-connection network of the ground-source heat pump system by adopting graph theory method and by using Hardy Cross method for pipe network adjustment, and with the help of Matlab language programming. Taking the Ground-source heat pump in the Hun Sen international building as an example, this paper analyzes different layouts of connecting pipe network. It finds out that we can achieve evenly distribution either bychangingthe pipe connections, or adjusting the size of the diameter, which has a great guiding significance on engineering practice.