Oil return control method and device of air conditioning system, storage medium and air conditioning system
An air-conditioning system and oil return control technology, which is applied in air-conditioning systems, heating and ventilation control systems, heating and ventilation safety systems, etc., to achieve the effects of improving reliability and stability, simple and fast oil return process, and high oil return efficiency
Active Publication Date: 2019-02-01
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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Problems solved by technology
[0003] The main purpose of the present invention is to provide an oil return control method for an air-conditioning system, aiming to solve the technical problems of oil return control in the existing three-pipe air-conditioning system
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[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0050] It should be noted that if directional indications (such as up, down, left, right, front, back, etc.) are involved in the embodiments of the present invention, they are only used to explain each If the relative positional relationship, movement conditions, etc. between the components change, the directional indication will also change accordingly.
[0051] In addition, if the description of "first", "second" and so on in the present invention i...
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The invention discloses an oil return control method and device of an air conditioning system, a storage medium and an air conditioning system. The oil return control method is used for a three-pipe air conditioning system, and the three-pipe air conditioning system comprises a compressor, an outdoor heat exchanger, an indoor heat exchanger, a gas-liquid separator, a first pipeline, a second pipeline and a third pipeline. The oil return control method comprises the following steps that the compressor is controlled to operate at a first frequency under a refrigeration mode; whether the operation time of the refrigeration mode reaches first preset time or not is judged; and if yes, the air conditioning system enters an oil return state, and the compressor, the third pipeline, the second pipeline and the gas-liquid separator are controlled to sequentially communicate to form a refrigerant circulation loop. The oil return control method and device of the air conditioning system, the storage medium and the air conditioning system aim to quickly and smoothly realize the oil return process of the three-pipe air conditioning system in the refrigeration mode or a heating mode.
Description
technical field [0001] The invention relates to the technical field of air conditioning, in particular to an oil return control method and device for an air conditioner system, a storage medium and an air conditioner system applying the oil return control method. Background technique [0002] The three-pipe air-conditioning system has been widely used because it can cool and heat at the same time, and can provide a comfortable environment for people with different needs indoors. Specifically, the three-pipe air-conditioning system includes an indoor group and an outdoor group. The indoor group is equipped with a heat exchanger, and the outdoor group is equipped with a heat exchanger. There are three pipelines between the indoor group and the outdoor group for refrigerant circulation. The heat exchanger and outdoor heat exchanger can be in the mode of cooling only, heating only, or cooling and heating at the same time. As we all know, the refrigeration lubricating oil is the...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F24F11/64F24F11/61F24F11/86
CPCF24F11/61F24F11/64F24F11/86F25B13/00F25B31/004F25B49/02F25B2313/0231F25B2313/007F25B2313/0233F25B2313/0253F25B2313/02743F25B2600/0253Y02B30/70F24F1/32F25B43/02F25B49/022F25B2400/077F25B2500/16F25B41/26F25B2600/01F25B2600/025F25B29/003F24F2221/54
Inventor 王新利熊美兵冯明坤赵浩伟刘加劲
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD