Control method and device for energy efficiency optimization of VRF system

A multi-connection system and control method technology, applied in the field of air conditioning, can solve the problems of low system energy efficiency, small operating load, frequent start and stop of air conditioners, etc., to achieve the effect of improving system energy efficiency, avoiding frequent start and stop, and improving user experience

Inactive Publication Date: 2019-06-18
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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Problems solved by technology

[0003] At present, if the multi-connected system of the related art is operated when the indoor temperature is near the set temperature, the operating load of the multi-connected system is small at this time, and the air conditioner is prone to frequent start and stop states, resulting in low energy efficiency of the system and affecting users. experience

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  • Control method and device for energy efficiency optimization of VRF system
  • Control method and device for energy efficiency optimization of VRF system
  • Control method and device for energy efficiency optimization of VRF system

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Embodiment Construction

[0032] 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.

[0033] The control method and device for energy efficiency optimization of a multi-connected system according to embodiments of the present invention will be described below with reference to the accompanying drawings.

[0034] figure 1 It is a schematic structural diagram of an indoor unit of a multi-connected system according to an embodiment of the present invention.

[0035] Such as figure 1 As shown, the multi-connected system indoor unit may include a throttling device EXV, a heat exchanger HE and a fan FAN, wherein, betw...

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Abstract

The invention provides a control method and device for energy efficiency optimization of a VRF system. The method comprises the steps that the work mode of an indoor unit is acquired; the set temperature and the indoor environment temperature corresponding to the work mode are acquired, and the indoor unit load corresponding to the work mode is calculated according to the set temperature and the indoor environment temperature; if the work mode is a refrigeration mode, the target superheat degree of the indoor unit is controlled according to the indoor unit load corresponding to the refrigeration mode; and if the work mode is a heating mode, the target supercooling degree of the indoor unit is controlled according to the indoor unit load corresponding to the heating mode. Thus, according tothe indoor unit load corresponding to the work mode, the target superheat degree or the target supercooling degree of the indoor unit is controlled, the VRF system is prevented from being frequentlystarted and stopped in a small-load operation state, and therefore the energy efficiency of the system and the use experience of users are improved.

Description

technical field [0001] The invention relates to the technical field of air conditioning, and in particular to a control method for energy efficiency optimization of a multi-connection system and a control device for energy efficiency optimization of a multi-connection system. Background technique [0002] With the development of air-conditioning technology, customers' requirements for air-conditioning are not only limited to cooling and heating, but also have higher and higher requirements for comfort and energy efficiency. [0003] At present, if the multi-connected system of the related art is operated when the indoor temperature is near the set temperature, at this time, the operating load of the multi-connected system is small, and the air conditioner is prone to frequent start and stop states, resulting in low energy efficiency of the system and affecting users. use experience. Contents of the invention [0004] The present invention aims to solve one of the technica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/46F24F11/64F24F11/70F24F110/10F24F140/50
Inventor 王命仁郑小峰杨国忠谭志军
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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