Air source heat pump unit with continuous heat supply function

Abstract

The invention relates to an air source heat pump unit with the continuous heat supply function. The air source heat pump unit comprises a first-stage compression unit, an indoor water side secondary compression reheating unit, a quasi-second-stage compression unit, an outdoor air heat exchange unit and a defrosting branch unit. According to the air source heat pump unit with the continuous heat supply function, a quasi-second-stage compression type air supplementing and enthalpy increasing technology, a cascade type secondary compression cycle and a branch rotational defrosting and continuousheat supply scheme are combined, a first-stage compression system adopts the air supplementing and enthalpy increasing technology, so that heat in air can be extracted to the maximum extent, a cascadetype secondary compression cycle technology is adopted, so that the water temperature can be increased to the maximum extent, namely, high-temperature water can be prepared under the ultralow-temperature working condition, defrosting branches rotationally perform defrosting operation on fluorine-air heat exchange mechanisms of all the branches one by one, and therefore rotational accurate defrosting and continuous heat supply can be realized.

Description

technical field [0001] The invention relates to an air source heat pump unit, in particular to an air source heat pump unit for continuous heat supply. Background technique [0002] The air source heat pump is an energy-saving device that uses high-level energy to make heat flow from low-level heat source air to high-level heat source. It is a form of heat pump. The air source heat pump has a wide range of applications, can run all year round, does not need special personnel to guard, has low operating costs, and has outstanding energy-saving effects. It is an environmentally friendly product. It does not emit pollutants during operation, and at the same time, it will not cause damage to the human body, and has good social benefits. Therefore, it is widely used in heating and cooling in cold winter and hot summer areas in my country. [0003] However, in the cold northern region (Huaihe River), as the outdoor temperature decreases, the application of air source heat pumps h...

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Problems solved by technology

[0006] The purpose of the present invention is to propose an air source heat pump unit for continuous heating, which can maximize The heat in the air is extracted to maximize the temperature of the outlet water, that is, the high-temperature water is produced under ultra-low temperature conditions.

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