Heat pump unit and energy-saving control method and control device thereof
A heat pump unit, energy-saving control technology, applied in heat pumps, refrigeration and liquefaction, refrigerators, etc., can solve the problems of ignoring the optimal operating frequency of the compressor and the lack of energy-saving system operation.
Active Publication Date: 2017-12-12
GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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Problems solved by technology
[0004] The above control method only aims to achieve the set temperature, but ignores the problem of the optimal operating frequency of the compressor, resulting in the system running without energy saving
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[0050] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0051] The energy-saving control method of the heat pump unit, the energy-saving control device of the heat pump unit and the heat pump unit with the energy-saving control device according to the embodiments of the present invention will be described below with reference to the accompanying drawings.
[0052] figure 1 is a flowchart of an energy-saving control method for a heat pump unit according to an embodiment of the present invention. In an embodiment of the present invention, the heat pump unit may be a heating and cooling...
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The invention discloses a heat pump unit and an energy-saving control method and a control device thereof. The method comprises the following steps: (S1) a present outdoor environment temperature and a first present water outlet temperature of a heat exchanger are detected; (S2) an initial operation frequency of a compressor is determined according to the present outdoor environment temperature and the first present water outlet temperature; and the compressor is controlled to operate by a preset time according to the initial operation frequency; (S3) a present water inlet temperature, a second present water outlet temperature and a present pressure of a refrigerant are obtained; and a set temperature of the heat pump unit is obtained; (S4) a frequency adjustment operation time of the compressor is determined according to the second present water outlet temperature and the set temperature; (S5) a frequency adjustment operation frequency is calculated according to the present water inlet temperature, the second present water outlet temperature and the present pressure of the refrigerant; and (S6) after the compressor is controlled to operate by the frequency adjustment operation time with the frequency adjustment operation frequency, the steps (S3)-(S6) are repeatedly carried out until the set temperature is reached. In the water heating / cooling process, the compressor can be automatically controlled to operate at optimal frequency according to the water temperature condition to achieve the purpose of energy conservation.
Description
technical field [0001] The invention relates to the technical field of air conditioning, in particular to an energy-saving control method for a heat pump unit, an energy-saving control device for a heat pump unit, and a heat pump unit with the energy-saving control device. Background technique [0002] Currently, heat pump systems are increasingly used in heating and cooling applications. The heat pump system may include a heating end and a cooling end, where the heating end may include floor heating coils, fan coils or low-temperature radiators, etc., and the cooling end may include fan coils, capillary pipe networks, and the like. Both the heating terminal and the cooling terminal mentioned above can use water as the heat transfer medium. A heat pump system can heat / cool water by controlling the operation of a compressor. [0003] Taking the heating / cooling of the heat pump system as an example, in related technologies, the common control methods are: (1) The compressor ...
Claims
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Login to View More IPC IPC(8): F25B30/02F25B49/02
CPCF25B30/02F25B49/022
Inventor 马超
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD