建筑热交换通风系统的作用及工作原理

本文首先阐述了目前室内环境存在的问题及建筑热交换通风系统的作用，不仅为室内创造良好的气候环境，而且大大节省了基础能源。然后介绍了其工作原理，分空气对空气间的热交换和地下对空气间的热交换两种情况。最后说明了在不同的时间段，采取不同的技术手段来达到更高的热效率。

The role and working principle of the heat exchange ventilation system in the building

Firstly, this article expounds the problems in the indoor environment and the role of the heat exchange ventilation system, not only creates the good climate environment indoor, but also save much primary energy. Then introduces its working principle, there are two conditions, one is air to air heat exchange, the other is earth to air heat exchange. At last, illustrates that should use different technology methods in different time periods to achieve to higher heat efficiency.