流体机械

2009, v.37;No.439(01) 59-63

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地埋管地源热泵系统冬季运行试验研究
Experimental Research for Ground Source Heat Pump System in Heating Mode

胡平放;於仲义;孙启明;陈焰华;雷飞;彭起;
HU Ping-fang1,YU Zong-yi1,SUN Qi-ming1,CHEN Yan-hua2,LEI Fei1,PEN Qi1(1.Huazhong University of Science and Technology,Wuhan 430074,China;2.Wuhan Architecture Academy,Wuhan 430015,China)

摘要(Abstract):

介绍了地源热泵试验装置及测试装置的建设过程与冬季运行试验。分析了冬季地源热泵试验的有关数据。得到热泵运行前后土壤不同深度温度,地下5m以下土壤初始温度基本稳定在15.5~17.5℃,启动2h后地下50m土壤温度由运行前的17.2℃下降为12℃左右。地下土壤温度的恢复比开机运行时温度降低速度要慢。进出地下埋管的水温分别为6~8℃和9~11℃,温差一般为2~5.5℃。热泵供水温度为43~48℃,回水温度一般在39~43℃之间。温差一般为2~4℃。单位管长换热量在25~45W/m之间。机组平均COP为4.0,系统平均COP为2.3。
The producere of the GSHP(Ground Source Heat Pump)system and the testing device and the experiment in heating mode were introduced.the related data of the experiment was Analyzed.The tempature in different depth under the ground before and after the operation was obtained.Its includes:the original temperature loweer than 5m under the ground is 15.5~17.5℃,and the temperature at 50m under the ground become 11℃ from 15℃ 3 hours after the startup of the system.The comeback of the soil temperature is slower than its decrease at startup.The tempature of water flowing in the tube and out the tube are 6~8℃and 9~11℃ respectively and difference is generally 2~5.5℃.The temperature of supplying water is 43~48℃ and the temperature of return water is 39~43℃,and the difference is generally 2~4℃.The heat exchange rate is 25~45W per unit depth of the borehole.The average COP value of the unit is 4.0 and the average value of the system is 2.3.

关键词(KeyWords): 地源热泵;试验装置;温度
GSHP;experiment;temperature

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基金项目(Foundation): 武汉市科技计划项目(20066002051);; 武汉市建设科研计划(200601);; 湖北省建设科技项目(K200631)

作者(Author): 胡平放;於仲义;孙启明;陈焰华;雷飞;彭起;
HU Ping-fang1,YU Zong-yi1,SUN Qi-ming1,CHEN Yan-hua2,LEI Fei1,PEN Qi1(1.Huazhong University of Science and Technology,Wuhan 430074,China;2.Wuhan Architecture Academy,Wuhan 430015,China)

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