地下水源热泵THMC耦合机理初探

Preliminary study on THMC coupling mechanisms of groundwater source heat pump

随着地下水源热泵的推广和应用,越来越多的问题逐渐表现出来。针对地下水源热泵系统运行中可能发生的环境地质灾害,提出了地下水源热泵系统含水层温度场-渗流场-应力场-化学场(THMC)耦合机理的研究。本文运用了场等效处理方法对地下水源热泵THMC四场进行连续化处理,在THMC四场中运用两两组合场相互作用的方法进行耦合机理研究,分析总结了THMC四场完全耦合机理,得出THMC完全耦合机理分析图,最后对THMC四场耦合关系进行了阐述。地下水源热泵THMC耦合机理研究为以后耦合模型的建立和地下水源热泵系统的规划、布置和设计提供科学依据。

With the promotion and application of groundwater source heat pump,more and more problems gradually appear. Based on the possible environmental geological disasters incurred by groundwater source heat pump system operation, the study on thermo-hydro-mechanical-chemical( THMC) coupling mechanism of groundwater aquifer is conducted. The groundwater source heat pump is treated continuously based on field equivalence principle,the main control factor is studied between each coupling field,four field coupling mechanism is concluded,the THMC coupling mechanism analysis diagram is obtained,and the four field coupling relationship is described at last. The study would provide a scientific basis for the establishment of mathematical model,and planning,design of groundwater source heat pump system.