Direct Expansion Heat Recovery Method and Device
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United States of America Patent
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Apr 7, 2016
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May 7, 2015
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A direct expansion heat recovery method includes a complete refrigeration cycle including a compression process by a compressor, a condensing process by a condenser, a throttling process by an expansion valve, and an evaporation process by an evaporator. A heat output process of a condensing process of the condenser includes providing at least two condensers which are connected serially. A heat output required by a second condenser is to proportionally control a heat output of a first condenser, so as to precisely control the heat output required by the second condenser. A heat input process of an evaporation process of the evaporator includes providing at least two evaporators which are connected serially. A heat input required by a second evaporator is to proportionally control a heat input of a first evaporator, so as to precisely control the heat input required by the second evaporator.
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