Surface water heat pumps (SWHPs) are energy-efficient devices for heating and cooling that use surface water as a heat source and sink.

水源热泵是一种利用地下浅层水资源(地表水或地下水)，既可供暖又可制冷的高效节能热泵系统。

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Ground water is used as the cooling water source of heat pump units in summer a great deal of production sewage is used as extracted heat sink for units in winter.

夏季利用地下水作为水源热泵机组的冷却水，冬季利用该厂丰富的污水作为机组的吸热源。

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