Condensing heat recovery ground source heat pump triple supply system

Abstract

A condensation heat recovery GSHP (Ground Source Heat Pump) triple generation system is characterized by comprising a ground side water heat exchange unit, an air condition unit, a water heating unit and a hot water supplying unit. In a summer working condition, the air condition unit runs to refrigerate; a three-way valve is switched for enabling an a end and a b end to communicate with each other; system condensation heat is recycled through a plate type heat exchanger for producing domestic hot water, so that excess discharge of condensation heat is reduced and heat accumulation in soil is avoided / reduced. Therefore, long term effective heat exchange of the ground heat exchanger in the whole system is ensured. In a transition season working condition, the air condition unit and the water heating unit are independent from each other. In a winter condition, the three-way valve in the air condition unit is switched for enabling the a end and a c end to communicate with each other and the first plate type heat exchanger in the air condition system is in short circuit; a compressor, a first heat exchanger and a first throttling device and a fin type heat exchanger form an air condition circulation system; and the water heating unit also controls operation independently for providing domestic hot water at the same time.

Description

technical field [0001] The invention relates to a ground source heat pump triple supply system, in particular to a condensation heat recovery type ground source heat pump triple supply system. Background technique [0002] The application of soil source heat pump systems in my country is becoming more and more common. The heat transfer performance of underground pipe heat exchangers is mostly determined by the soil temperature and its thermophysical properties. At this time, the heat absorbed by the soil in summer is more than three times the heat released in winter, so the accumulation of soil heat will cause great fluctuations in the temperature of the soil, which will directly reduce the heat transfer capacity of the buried pipe heat exchanger and gradually increase the operating efficiency of the system. decline. Contents of the invention [0003] The technical problem to be solved by the present invention is: to provide a condensation heat recovery type ground source h...

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Problems solved by technology

[0002] The application of soil source heat pump systems in my country is becoming more and more common. The heat transfer performance of underground pipe heat exchangers is mostly determined by the soil temperature and its thermophysical properties. At this time, the heat absorbed by the soil in summer is more than three times the heat released in winter, so the accumulation of soil heat will cause great fluctuations in the temperature of the soil, which will directly reduce the heat transfer capacity of the buried pipe heat exchanger and gradually increase the operating efficiency of the system. decline

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