关键词: 地源热泵, 热响应测试, 热平衡, 单孔延米换热量

Abstract: This paper, in order to analyze the operation and factors of geothermal pump system and improve its engineering, selects a factory’s geothermal pump project on the basis of project introduction and design to analyze the indicators of heat balance and temperature change of rock body, pipe input/output temperature and heat exchange per meter in single hole. The result shows that the theoretical heat balance in the rock body is close to the measured. The operation in winter and summer is better than the tested, with the actual heat exchange per meter in single hole less than the tested. This paper points out that geothermal pump project shall be boosted at its early exploration and heat response test, and at its later maintenance and monitoring.

Key words: geothermal pump, heat response test, heat balance, heat change per meter in single hole