APPLICATION PROBLEMS AND COUNTERMEASURES OF ROCK-SOIL SOURCE HEAT PUMP IN KARST AREAS
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摘要:
地源热泵目前的主要形式是岩土源热泵. 为厘清系统在喀斯特地区应用时影响运行效果的因素, 进行了换热试验和工程调研, 认为不利的地层岩性和水文地质条件会在一定程度上制约系统的可持续开发利用, 空气潜孔锤钻井技术与施工中存在的问题也会使系统不能正常运行. 提出了加强基础地质和水文地质调查、地球物理勘察、钻探技术提升及过程管理等建议和对策.
Abstract:The main form of ground source heat pump is rock-soil source heat pump system. To find out the causes for the poor operation effect of the system when applied in karst area, the heat transfer test and engineering research are conducted. It is considered that the unfavorable formation lithology and hydrogeological conditions may restrict the sustainable development and utilization of the system to some extent, and the problems existing in the air pressure down-the-hole(DTH) hammer technology and construction may also cause abnormal running of the system. Thus, the paper put forwards some suggestions and countermeasures on strengthening basic geological and hydrogeological survey, geophysical prospecting, drilling technology promotion and process management.
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Key words:
- rock-soil source heat pump /
- karst area /
- geothermal energy /
- carbon neutrality /
- carbon peak /
- Guizhou Province
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