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Control method and device of air-cooled chiller unit and air-cooled chiller unit

The technology of an air-cooled chiller and its control method, which is applied to the control of air-cooled chillers and the field of air-cooled chillers, can solve problems such as easy surge, poor operation stability of air-cooled magnetic levitation units, and increased compression ratio.

Inactive Publication Date: 2021-05-18
GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the operation stability of the air-cooled maglev unit is poor; at high ambient temperature, the compression ratio of the unit increases, which is likely to cause surge
[0003] For the technical problems existing in the above-mentioned related technologies, no effective solution has been proposed at present

Method used

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  • Control method and device of air-cooled chiller unit and air-cooled chiller unit
  • Control method and device of air-cooled chiller unit and air-cooled chiller unit
  • Control method and device of air-cooled chiller unit and air-cooled chiller unit

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Embodiment Construction

[0023] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0024] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that such terms are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those ...

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Abstract

The invention provides a control method and device of an air-cooled chiller unit and the air-cooled chiller unit. The method comprises the steps: setting a target water outlet temperature of the air-cooled chiller unit; detecting a current environment temperature; determining a refrigeration correction value of the outlet water temperature of the air-cooled chiller unit according to the current environment temperature and a preset relation, wherein the preset relationship is used for representing the corresponding relation between the environment temperature and the refrigeration correction value; correcting the target outlet water temperature according to the refrigeration correction value, and obtaining the current outlet water temperature of the air-cooled chiller unit; and determining the refrigeration evaporation temperature according to the current outlet water temperature to adjust the low pressure of the air-cooled chiller unit. According to the air-cooled chiller unit, the technical problem that the air-cooled chiller unit in the prior art is prone to surging is solved.

Description

technical field [0001] The invention relates to the field of air conditioners, in particular to a control method and device for an air-cooled chiller and the air-cooled chiller. Background technique [0002] At present, the maglev centrifugal unit has many inherent advantages. For example, one is that the product does not use mechanical bearings and has no mechanical friction; the other is that it does not use oil, which completely eliminates the impact of oil on the heat transfer efficiency of the refrigeration system; . These three advantages together make the efficiency of the magnetic levitation centrifugal unit 35% to 60% higher than that of conventional products, and the application of the magnetic levitation centrifugal unit to the air-cooled unit has become a development direction. However, the operation stability of the air-cooled maglev unit is poor; under high ambient temperature, the compression ratio of the unit increases, which easily causes surge. [0003] A...

Claims

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Application Information

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IPC IPC(8): F24F11/64F24F11/89F24F11/88F24F5/00F24F110/10
CPCF24F5/0035F24F11/64F24F11/88F24F11/89F24F2110/10
Inventor 黄凯亮林少丹李顺意钟海玲
Owner GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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