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介绍了地热换热器的形式，提出了竖直埋管地热换热器的设计方法及地下环路循环泵的选择方法。
The design method of the vertical coiled pipe geothermal heat exchanger and the selecting method of the circulators was presented.
介绍了地热换热器的形式，提出了竖直埋管地热换热器的设计方法及地下环路循环泵的选择方法。
The types of geothermal heat exchanger was described. The design method of the vertical coiled pipe geothermal heat exchanger and the selecting method of the circulators was presented.
乙二醇间接制冷方式是通过低温盐水机组将乙二醇降到一定温度，通过循环泵将乙二醇溶液供到需要制冷的气调库内换热器中，再由换热器对库内环境进行制冷。
For the indirect cooling method, glycol liquid as the secondary coolant is cooled in the refrigerating unit, pumped to the cooler in the house to cool the air.
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