深部矿井热害治理地层储冷数值模拟研究

Numerical Simulation Study on Utilizing Aquifers to Store Cool Energy in Fathing Deep Mine Heat-harm

以夹河矿为例,以该矿的地质条件、热力学及水力学参数为设计参数,采用数值模拟方法,对储冷井的等温线、不同温度范围冷水体体积及储冷时冷水体最大影响半径进行了数值模拟分析.分析结果表明,回灌流量越大,回灌温度越低,越有利于储冷.从理论上证明了,储冷层冷水体在井下制冷设备运行过程中,可为井下工作面降温提供充足的冷量.图7,表4,参8.

With the economic development rapidly in China, more and more resources are needed. So the deeper of mining depth becomes, the more heat-harm is in deep mining. And heat-harm treatment is one of the key technical troubles. This paper takes Jiahe mine as an example, using its geological condition, thermodynamic parameter and hydraulic parameter as designing parameter. With the method of numerical simulation, the isothermal line, the volume of cold water in different temperature range, and the cold water maximum influence radius of the well for cold energy storage are analyzed. The result indicate that the more reinjection volume is and the lower reinjection temperature is, the better effect of cool energy storage is. Theoretically, that the volume of cold water in the aquifers for cold energy storage is enough to supply cold energy to cooling working surface in the whole course of refrigeration. 7figs., 4tabs., 8refs.