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Air-conditioning system, method and device for controlling the air-conditioning system

A technology of air-conditioning system and throttling device, which is applied in the direction of air-conditioning system, heating and ventilation control system, heating and ventilation safety system, etc. even liquid effect

Active Publication Date: 2021-08-03
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide an air conditioning system, an air conditioning system control method, and a device to at least solve the problem of uneven distribution of refrigerant in the outdoor heat exchanger in the prior art when the air conditioning system is heating.

Method used

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  • Air-conditioning system, method and device for controlling the air-conditioning system
  • Air-conditioning system, method and device for controlling the air-conditioning system
  • Air-conditioning system, method and device for controlling the air-conditioning system

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Embodiment 1

[0048] figure 1 is a schematic structural diagram of the air-conditioning system provided by Embodiment 1 of the present invention, as figure 1 As shown, the air conditioning system includes: a compressor 1 , a four-way valve 2 , an outdoor heat exchanger 3 , a first throttling device 4 and an indoor heat exchanger 5 . Wherein, the first throttling device 4 may be an electronic expansion valve. The outdoor heat exchanger 3 includes many branches, and all the branches are divided into the first group of circuits and the second group of circuits, which can be divided according to the positional relationship. For example, the first group of circuits is the upper branch circuit, and the second group of circuits is The group branch is the lower branch. figure 1The black arrows in indicate the direction of refrigerant flow in heating mode.

[0049] The air conditioning system further includes: a refrigerant tank 6 located between the first throttling device 4 and the outdoor heat...

Embodiment 2

[0073] Based on the same inventive concept, this embodiment provides a method for controlling an air-conditioning system, which is applied to the air-conditioning system described in the above-mentioned embodiments. Explanations of terms that are the same as or corresponding to those in the foregoing embodiments will not be repeated in this embodiment.

[0074] Figure 5 It is a flow chart of the air conditioning system control method provided in Embodiment 2 of the present invention, such as Figure 5 As shown, the method includes the following steps:

[0075] S501. Determine the current operating mode of the air conditioning system.

[0076] S502. If the current operation mode is the heating mode, control the refrigerant throttled by the first throttling device to enter the refrigerant tank through the first port of the refrigerant tank for gas-liquid separation, and control the separated gaseous refrigerant to pass through the first port of the refrigerant tank. The seco...

Embodiment 3

[0084] Based on the same inventive concept, this embodiment provides an air-conditioning system control device, which is applied to the air-conditioning system described in Embodiment 1 above, and the device can be used to implement the air-conditioning system control method described in Embodiment 2 above. The device can be realized by software and / or hardware, and generally the device can be integrated into the controller of the air conditioning system.

[0085] Image 6 It is a structural block diagram of the air-conditioning system control device provided by Embodiment 3 of the present invention, such as Image 6 As shown, the device includes:

[0086] A judging module 61, configured to judge the current operating mode of the air-conditioning system;

[0087] The first control module 62 is configured to control the refrigerant throttled by the first throttling device to enter the refrigerant tank through the first port of the refrigerant tank for gas-liquid separation if...

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Abstract

The invention discloses an air-conditioning system, a control method and a device for the air-conditioning system. The air conditioning system includes an outdoor heat exchanger, a first throttling device, and a refrigerant tank. All branches in the outdoor heat exchanger are divided into the first group of circuits and the second group of circuits; the refrigerant tank is located between the first throttling device and the outdoor Between the heat exchangers; the refrigerant tank includes: the first port is connected to the first throttling device for allowing the throttled refrigerant to enter the refrigerant tank for gas-liquid separation; the second port is connected to the first group of circuits for The separated gaseous refrigerant is transmitted to the first group of circuits; the third port is connected to the second group of circuits through a flow distribution component, and is used to transmit the separated liquid refrigerant to the second group of circuits. The present invention is provided with a refrigerant tank, and the throttled refrigerant in the heating mode enters the refrigerant tank to realize gas-liquid separation, and the separated gas refrigerant and liquid refrigerant are respectively transported to different branches of the outdoor heat exchanger to ensure that the outdoor heat exchanger The amount of refrigerant circulation in the medium ensures uniform liquid separation and improves heat exchange capacity.

Description

technical field [0001] The present invention relates to the technical field of air conditioning, in particular to an air conditioning system, an air conditioning system control method and a device. Background technique [0002] At present, the outdoor heat exchanger of the air-conditioning system generally adopts the shunt component to directly shunt the flow when heating, but because the gas-liquid two-phase state will appear after the refrigerant is throttled, the density of the gas-liquid two-phase is very different, and uneven shunting is prone to occur The phenomenon that the refrigerant in the outdoor heat exchanger is unevenly distributed leads to poor heat transfer effect. [0003] Aiming at the problem of uneven distribution of refrigerant in the outdoor heat exchanger in the air-conditioning system in the prior art during heating, no effective solution has been proposed so far. Contents of the invention [0004] Embodiments of the present invention provide an ai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F1/0003F24F5/00F24F11/61F24F11/64F24F11/65F24F11/84F24F11/88F25B13/00F25B41/20F25B49/02
CPCF24F1/0003F24F5/001F24F11/61F24F11/64F24F11/65F24F11/84F24F11/88F25B13/00F25B49/02
Inventor 刘华张仕强陈敏李立民
Owner GREE ELECTRIC APPLIANCES INC
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