Water multi-connected unit and comfort control method thereof
A control method and comfort technology, which is applied in the field of water multi-unit and its comfort control, can solve problems such as the inability to accurately evaluate the operation status of water multi-unit, and achieve the effect of improving user experience
Inactive Publication Date: 2020-09-04
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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Problems solved by technology
[0005] In order to solve the defect that the existing stand-alone comfort evaluation system cannot accurately evaluate the operating status of the water multi-unit unit, the present invention proposes a water multi-unit unit and its comfort control method. The comfort evaluation index of the multi-unit unit is used to evaluate the operating status of the unit according to the comfort evaluation index and design the corresponding control strategy to adapt to the changing environment of the water multi-unit operation
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[0031] Such as figure 1 , 2 As shown, the present invention proposes a comfort control method applied to a water multi-unit unit. The water multi-unit unit has an external unit 1 and a plurality of internal units 2 connected to the external unit 1. The external unit 1 is used to prepare chilled water or Hot water, which includes a compressor 11, a finned heat exchanger 12, and a water-side heat exchanger 13. The water-side heat exchanger 13 is provided with an outer heat exchange tube participating in the water circulation of the outer unit 1 and an inner exchange tube participating in the water circulation of the inner unit 2. Heat pipe, the electronic expansion valve 14 is connected in series between the outer heat exchange tube of the water side heat exchanger 13 and the fin heat exchanger 12, and the compressor 11, the fin heat exchanger 12 and the water side heat exchanger 13 are connected There is a four-way valve 15, and the water multi-unit unit is switched to work in...
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The invention discloses a water multi-connected unit and a comfort control method thereof. The comfort control method comprises the following steps that real-time operating parameters of an external machine and an internal machine in the water multi-connected unit are collected; a comfort evaluation index phi is calculated according to the real-time operating parameters; the comfort evaluation index phi is compared with a target comfort interval, if the phi is in the target comfort interval, then the state is comfortable, and the water multi-connected unit continues to operate normally; and ifthe phi exceeds the target comfort interval, then the state is to be optimized, a control strategy corresponding to the comfort evaluation index phi is obtained from a preset index strategy comparison table, and the water multi-connected unit executes the control strategy. According to the method, the comfort evaluation index of a water multi-connected system is designed through comprehensively considering the operating status of the external machine and integrating group parameters of the internal machine, the operating status of the unit is evaluated and the corresponding control strategy is designed according to the comfort evaluation index, so as to adapt to changeable environments of the operation of the water multi-connected unit.
Description
technical field [0001] The invention relates to the technical field of air conditioning, in particular to a water multi-connected unit and a comfort control method thereof. Background technique [0002] The water multi-unit unit is also called the multi-unit cold and hot water unit, that is, the chilled water or hot water is taken by the external machine first, and then it is transported to the air conditioner at the end for the user to adjust the air through the pipeline. The machine can be a mechanism such as a fan coil unit. Compared with the multi-line unit of the fluorine system, the water multi-line unit has a control delay due to the fact that there are many terminals connected to the external unit and the heat is exchanged for water. [0003] In the past, comfort evaluation indicators often only focused on the research of a single room. In the comfort evaluation system of a single room, PMV is currently the mainstream, involving evaluation indicators such as indoor ...
Claims
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IPC IPC(8): F24F11/62F24F11/64F24F11/70F24F11/38
CPCF24F11/38F24F11/62F24F11/64F24F11/70
Inventor 姜智博胡乾龙郑神安王晓红
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION