地下水源热泵回灌堵塞预测模型的研究进展

Research Progress on the Recharge Clogging Prediction Model of Underground Water Heat Pump

摘要: 本文简要论述了物理堵塞、化学堵塞以及生物堵塞的堵塞机理，介绍了三种堵塞类型的堵塞预测模型的应用现状。物理堵塞预测使用了颗粒运移–沉积模型预测了堵塞的发生发展过程；用了浓度模型和吸附–解析模型说明了流速与悬浮颗粒沉积量的关系。化学堵塞预测通过建立悬浮物表面堵塞模型，预测了悬浮物的发展过程及完全堵塞的时间；用了均质微裂隙介质堵塞模型，说明了堵塞动力学与化学反应速率和孔隙率的关系。生物堵塞预测运用了Taylor模型、Seki模型和Clement模型，以上三种模型说明了生物膜厚度与渗透率的关系。研究建立有效的地下水源热泵回灌堵塞模型，对地下水源热泵回灌堵塞问题具有重大意义。

Abstract: Physical and chemical and biological clogging mechanisms were discoursed in the article. The application of the three types of clogging prediction models was introduced. Particle migration- deposition model for physical clogging prediction was used to predict the occurrence and devel-opment of the clogging. The relationship between flow velocity and sediment concentration of suspended particles was explained by concentration model and adsorption-analytic model. In chemical clogging prediction aspect, the development process of suspended solids and the clog-ging time were predicted by the suspended matter surface clogging model. The relationship be-tween plugging kinetics and chemical reaction rate and porosity was explained by the model of homogeneous microfissure media. Taylor model, Seki model and Clement model were used to explain the relationship between biofilm thickness and permeability in biological clogging prediction aspect. Research on the establishment of an effective underground water heat pump model was of great significance to the clogging of the underground water pump.