Heat pump system and control method thereof

Abstract

The invention relates to the technical field of heat pumps, and particularly provides a heat pump system and a control method thereof. The heat pump system comprises a heat exchanger and a heat supplytail end. The heat exchanger and the heat supply tail end are connected through a pipe set. A filter device is arranged on the pipe set. The heat pump system further comprises a valve set and a controller, and the valve set comprises multiple valves. The controller is arranged to adjust the opening and closing states of the multiple valves so as to remove the filter device from the pipe set in the heating mode of not needing to filtering liquid in the pipe set and to connect the filter device into the pipe set in the filter mode of needing to filter the liquid in the pipe set. Through the arrangement, the filter device is removed from the pipe set in the heating mode, liquid flowing resistance is reduced, the power of the drive device is small, and energy waste and the influence on the service life of the filter device are avoided; and the problems that a filter device in an existing air source heat pump system participates in circulating water filtering all the time, consequently, energy waste is caused, and the service life of the filter device is shortened are solved.

Description

technical field [0001] The invention relates to the technical field of heat pumps, and specifically provides a heat pump system and a control method thereof. Background technique [0002] With the popularity of air source heat pump systems in the field of winter heating, air source heat pump systems have become the first choice for more and more families to heat in winter, which brings convenience to people's heating in winter. However, there are impurities such as sediment and scale in the circulating water in the water circulation pipeline of the air source heat pump system. During daily use, these impurities will deposit inside the heat dissipation equipment to hinder heat dissipation and affect the heat exchange effect, and deposit in the circulation pipeline. Cause the pipeline to be blocked and affect the service life. [0003] In view of this, the improved air source heat pump system uses a filter device in series on the water circulation pipeline to filter the impur...

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Problems solved by technology

[0005] In order to solve the above problems in the prior art, that is, in order to solve the problem that the filter device in the existing air source heat pump system always participates in the circulating water filtration to cause energy waste and shorten the service life of the filter device, on the one hand, the present invention provides a heat pump system , the heat pump system includes a heat exchanger and a heat supply end, the heat exchanger and the heat supply end are connected through a pipe set, and a filtering device is arranged on the pipe set, and the heat pump system also includes a valve set and a control The valve group includes a plurality of valves; and the controller is configured to be able to adjust the opening and closing states of the plurality of valves so as to: filter the liquid in the pipe group in a heating mode without filtering The device is removed from the tubing set, and the filtering device is inserted into the tubing set in the filtration mode required to filter the liquid in the tubing set

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