Circulation heat recovery heat pump type water heater

Abstract

The invention relates to a circulation heat recovery heat pump type water heater, which is characterized in that the circulation heat recovery heat pump type water heater comprises a refrigeration loop, a heat flow return passage and a self circulation loop, wherein the refrigeration loop comprises a sealed flow passage formed by a compressor, a condenser, a liquid-liquid heat exchange evaporator and a liquid-gas heat exchange evaporator through being connected sequentially through pipelines, refrigeration working substances are filled in the refrigeration loop, the heat flow return passage comprises an open type flow passage formed by a heat return device, a condenser, a water storage tank, a first water pump and a hot water spraying device through being connected sequentially through pipelines, and also comprises an open type flow passage formed by a waste water collection tank, a second water pump, a heat return device and a liquid-liquid heat exchange evaporator through being connected sequentially through pipelines, hot water sprayed out through the hot water spraying device is discharged into the waste water collection tank after being used, and the self circulation loop comprises a sealed flow passage formed by a condenser, a water storage tank and a first water pump through being connected sequentially through pipelines. The invention can be widely used for bath or heating places such as factories, families, bath centers and the like, and has very large economic and market prospects.

Description

technical field [0001] The invention relates to a water heater, in particular to a circulation heat pump water heater which circulates and utilizes waste heat to heat tap water. Background technique [0002] At present, as the world is facing serious energy crisis and water resource crisis, and China is also facing huge energy-saving pressure, it has become an inevitable trend to vigorously develop energy-saving and emission-reduction industries. In recent years, many heat pump technologies such as water source heat pumps, geothermal source heat pumps and air source heat pumps have emerged in China to recover low-grade heat sources. Experience shows that these technologies have been well promoted and have strong adaptability. However, industrial and domestic waste water contains a large amount of waste heat, which has not been well utilized. At this stage, the heat pump system for recovering waste heat from industrial and domestic wastewater mainly undergoes waste heat reco...

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Problems solved by technology

[0003] In view of the above problems, the object of the present invention is to provide a circulating heat pump water heater that recycles waste heat to heat tap water, which has the characteristics of high system energy efficiency ratio and strong practicability, and solves the problem of waste heat in a large number of industrial and domestic wastewater. waste phenomenon

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