开式地表水源热泵温排水影响的模拟研究

The Numerical Simulation of the Thermal Discharge in the Open-loop Water Source Heat Pump Systems

结合邯郸某工程,建立了二维湍流模型,模拟分析开式地表水源热泵系统中温排水热扩散情况。模拟结果显示,温排水对排水侧的温度影响比较大,对排水侧河对岸地带以及河中心的温度几乎不产生影响,随河下流,温度逐渐降低,热扩散的范围逐渐变大,但影响程度不大,而且取水口的温度受到上游来流温度的影响,取水口附近的河水最大温升达1.65℃。根据地表水环境质量标准,温排水将会对河段造成水体热污染。

With a project in Handan,simulates thermal diffusion of warm water discharge in open loop surface water source heat pump systems by a two-dimensional mathematical model.The simulation results show that the cooling water is mainly affect the thermal diffusion of the bank of drainage side and less influence on the opposite bank of drainage side and the river centre.The heat diffusion of cooling water is diffused along the banks of river,intake temperature is affected by upstream of cooling water,and the maximum temperature rise of it is 1.65℃.According to the water environmental quality standard,there was heat pollution to the river caused by cooling water.