复合井在地下水源热泵工程中应用的试验研究

Experimental study on application of composite well to groundwater source heat pump engineering

为研究复合井结构对回灌量的影响及复合井在地下水源热泵工程中的适用性,以沈阳市第一城A组团工程为实例,采用复合井结构的同井回灌形式进行现场试验,并对试验结果进行对比分析。由分析结果可以看出,复合井结构不同,其抽水量和回灌量也不同,复合井基本上可以满足项目用水量要求。由于采用复合井结构,解决了由于按照常规井布设空间不足的问题,但要根据具体地区含水层结构特点来进行,该工程已运行两个供暖期,运行正常。

To study the effects of the composite well structure on recharging amount and the applicability of composite well in the water source heating pump engineering,the paper takes the first city of Shenyang in A group project as an example,the field test was carried out based on the composite well with the pumping and recharging in the same well,and the experimental results were compared and analyzed.It can be seen from the results that the pumping amount and the recharging amount are different with the different composite well structure and that the composite well can basically meet the water requirement in the project.Due to the composite well frame,the problem of insufficient space that caused by conventional arranged well is solved,but it needs to combine with the aquifer characteristics in the specific area,this project has run two heating period normally.