Novel frost-free air source heat pump system with dehumidifying rotating wheel

Abstract

The invention discloses a novel frost-free air source heat pump system with a dehumidifying rotating wheel. The novel frost-free air source heat pump system comprises a refrigerant loop, an indoor side air loop, an outdoor side air loop and the dehumidifying rotating wheel for connecting the outdoor side and the outdoor side, wherein the dehumidifying rotating wheel is used for feeding water vapor of outdoor air into the indoor, so that on one hand, humidity of air on the surface of an outdoor heat exchanger is reduced, and the frost-free air source heat pump is realized; on the other hand, indoor air is humidified to improve moisture content of a heating room while frosting is restrained, thereby achieving double purposes. In summer, the dehumidifying rotating wheel can be used for taking away humidity of the indoor, so that indoor dehumidifying is realized, and high-temperature air exhausted by the outdoor heat exchanger is utilized for regenerating a moisture absorbent. A novel circulating type defrosting system is mainly used for reducing loss of surface convection heat dissipation in a defrosting process, so that defrosting efficiency is improved, defrosting time is shortened, and defrosting energy consumption is reduced. Meanwhile, the dehumidifying rotating wheel can be used for feeding water vapor generated in the defrosting process into the indoor, so that indoor air quality is improved.

Description

technical field [0001] The invention relates to the technical field of frost-free air source heat pumps, in particular to a frost-free air source heat pump device with a dehumidifying wheel. Background technique [0002] Air source heat pumps have the advantages of both cooling and heating, small footprint, energy saving and environmental protection, and convenient installation, and have been favored by more and more people in recent years. However, the outdoor heat exchanger of the air source heat pump has the problem of frosting during winter operation, resulting in unsatisfactory operation results. And with the increase of the thickness of the frost layer on the wall of the outdoor heat exchanger, the evaporation temperature of the outdoor heat exchanger will drop, the heating capacity of the unit will decrease, the performance of the fan will decrease, and the coefficient of heating performance will decrease. In severe cases, the compressor will stop, resulting in The u...

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Problems solved by technology

[0005] In order to solve the problems existing in the prior art, the present invention provides a new type of frost-free air source heat pump system with a dehumidification wheel, which overcomes the idea of ​​first frosting and then defrosting in the prior art. Road reconstruction, system operation and control complex issues

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