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Multiple on-line system, and refrigerant flow deviation prevention control method and device thereof

A technology of a multi-connection system and a control method, which is applied in the field of multi-connection systems, can solve the problems of lack of refrigerant in the refrigeration internal unit, prone to bias flow, insufficient refrigeration capacity of the refrigeration internal unit, etc., and achieve the effect of avoiding insufficient refrigeration capacity or liquid backflow.

Active Publication Date: 2018-06-01
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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  • Application Information

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Problems solved by technology

[0002] When the three-pipe heat recovery multi-connected system operates in the mixed cooling and heating mode, the bias flow phenomenon is prone to occur, resulting in the lack of refrigerant or multiple refrigerants in the internal refrigeration unit, resulting in insufficient cooling capacity or liquid return of the internal refrigeration unit. However, the existing The control method has not yet solved the problem well

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  • Multiple on-line system, and refrigerant flow deviation prevention control method and device thereof
  • Multiple on-line system, and refrigerant flow deviation prevention control method and device thereof
  • Multiple on-line system, and refrigerant flow deviation prevention control method and device thereof

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Embodiment Construction

[0030] 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.

[0031] The anti-refrigerant flow control method of the multi-connected system, the anti-refrigerant flow control device of the multi-connected system and the multi-connected system with the anti-refrigerant flow control device proposed by the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0032] In the embodiment of the present invention, the multi-connected system includes an outdoor unit, multiple indoor units and a flow distribution device, and the outdoor unit includ...

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Abstract

The invention discloses a multiple on-line system, and a refrigerant flow deviation prevention control method and device thereof. The control method comprises following steps that when a multiple on-line system runs in a mixing refrigeration and heating mode, overheat degrees of refrigeration indoor units and overcooling degrees of heating indoor units in multiple indoor units are obtained; the work state of each outdoor heat exchanger is obtained; according to the work state of each outdoor heat exchanger, the overheating degrees of the refirgreation indoor units and the overcooling degrees of the heating indoor units, the opening degree of at least one of multiple outdoor throttling elements and multiple indoor throttling elements is adjusted, and the problem of insufficient refrigerating capacity or liquid returning due to refrigerant lacking or too much refrigerants in the indoor units can be effectively solved.

Description

technical field [0001] The present invention relates to the technical field of air conditioning, in particular to a multi-connection system anti-refrigerant drift control method, a multi-connection system anti-refrigerant drift control device and a multi-connection system with the anti-refrigerant drift control device. Background technique [0002] When the three-pipe heat recovery multi-connected system operates in the mixed cooling and heating mode, the bias flow phenomenon is prone to occur, resulting in the lack of refrigerant or multiple refrigerants in the internal refrigeration unit, resulting in insufficient cooling capacity or liquid return of the internal refrigeration unit. However, the existing The control method has not solved this problem well. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the above-mentioned technologies at least to a certain extent. Therefore, the first purpose of the present invent...

Claims

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Application Information

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IPC IPC(8): F24F5/00F25B13/00F24F13/30F25B41/06F25B49/02F25B43/00F25B41/34
CPCF24F5/0003F24F13/30F25B13/00F25B43/00F25B49/02F25B41/31Y02B30/70
Inventor 颜利波王命仁谭志军杨国忠
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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