Multi-line system and supercooling control device and method thereof
A multi-connection system and control device technology, applied in the field of multi-connection, can solve problems affecting user comfort, refrigerant noise, and uncontrollable refrigerant supercooling, so as to improve experience, ensure cooling effect, and reduce refrigerant noise.
Active Publication Date: 2021-02-23
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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Problems solved by technology
[0002] The multi-connected system in the related art, such as the three-pipe multi-connected system, cannot control the subcooling degree of the refrigerant entering the indoor unit during cooling, especially in the case of long piping, the refrigerant entering the indoor unit may have become two-phase state, thus It will affect the cooling effect of the indoor unit. At the same time, the flash evaporation of the two-phase refrigerant before entering the throttling device will easily cause refrigerant noise, which seriously affects the user's comfort.
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[0031] 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.
[0032] The subcooling control device of the multi-connection system, the multi-connection system and the subcooling control method of the multi-connection system according to the embodiments of the present invention will be described below with reference to the accompanying drawings.
[0033] figure 1 It is a schematic block diagram of a supercooling control device of a multi-line system according to an embodiment of the present invention. Among them, such as figure 2 As shown, the multi-line system includes a compressor 1, an...
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The invention discloses a multiple on-line system and a supercooling control device and method thereof. The device comprises a supercooler and a control unit; the supercooler is provided with a firstpipeline and a second pipeline, the first end of the first pipeline is connected with an outdoor heat exchanger of the multiple on-line system through a first throttling element, the second end of thefirst pipeline is connected with at least one indoor unit of the multiple on-line system through a switching device, the second end of the first pipeline is further connected with the second end of the second pipeline through a second throttling element, the first end of the second pipeline is connected with the first end of a low-pressure tank of the multiple on-line system, and the second end of the low-pressure tank is connected with a compressor of the multiple on-line system; and the control unit is used for acquiring the supercooling degree of the second end of the first pipeline of thesupercooler, controlling the opening degree of the first throttling element according to the supercooling degree, acquiring the superheat degree of the first end of the second pipeline of the supercooler and controlling the opening degree of the second throttling element according to the superheat degree, therefore precise supercooling degree control can be achieved, and the refrigerating effectof the indoor unit is guaranteed.
Description
technical field [0001] The present invention relates to the field of multi-connection technology, and in particular to a multi-connection system supercooling control device, a multi-connection system, a multi-connection system supercooling control method and a non-transitory computer-readable storage medium. Background technique [0002] The multi-connected system in the related art, such as the three-pipe multi-connected system, cannot control the subcooling degree of the refrigerant entering the indoor unit during cooling, especially in the case of long piping, the refrigerant entering the indoor unit may have become two-phase state, thus It will affect the cooling effect of the indoor unit. At the same time, the flash evaporation of the two-phase refrigerant before entering the throttling device will easily cause refrigerant noise, which seriously affects the comfort of the user. Contents of the invention [0003] The present invention aims to solve one of the technical...
Claims
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IPC IPC(8): F25B49/02F25B40/02
CPCF25B40/02F25B49/02
Inventor 颜利波杨国忠王命仁谭志军
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD