This paper discussed the design criteria of material selection,the area of single unit,flow path,flow rate of a plate heat exchanger (PHE)in a geothermal heating system.

• 重点分析了板式换热器在地热供暖系统中材料、单片面积、流程、流道、流体流速等选取的原则;在综合考虑技术、经济、环境效益及节能的基础上,论述了对板式换热器优化设计的方法。