Refrigerating unit and control method and system thereof

A technology for a refrigeration unit and a control system, applied in the field of air conditioning, can solve the problems of affecting the oil cooler, poor heating effect, and high power consumption, and achieve the effect of solving the high power consumption and solving the poor heating effect.

Active Publication Date: 2016-06-01
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology

[0004] In view of this, the present invention provides a refrigerating unit and its control method and control system to solve the problems of high power consumption and poor heating effect caused by simply using electric heating to heat the refrigerated oil in the prior art and the Maintaining a certain water flow affects the heating effect of the refrigerated oil in the oil cooler

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  • Refrigerating unit and control method and system thereof
  • Refrigerating unit and control method and system thereof
  • Refrigerating unit and control method and system thereof

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Embodiment Construction

[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0057] An embodiment of the present invention provides a refrigeration unit, especially a low-temperature refrigeration unit.

[0058] refer to figure 1 , the refrigerating unit in this embodiment includes an oil separator 1, a compressor 2, an oil cooler 3, a condenser 4, a cooling tower 5 and a heat recovery tank 6, wherein the cooling tower 5 is used for oil cooler 3 and condensing Cool the refrigerating oil in the oil cooler 4, the heat recovery tank 6 is...

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Abstract

The invention provides a refrigerating unit and a control method and system thereof. An oil separator is used for directly conveying refrigerant oil to a compressor or conveying the refrigerant oil to the compressor through an oil cooler. A cooling tower is used for cooling the refrigerant oil in the oil cooler and refrigerant oil in a condenser. A heat recycling bin is used for gathering heat of the refrigerant oil in the oil cooler and the condenser and heating the refrigerant oil in the oil cooler and the condenser through the heat. When the temperature of the refrigerant oil is high, the refrigerant oil in the oil separator can be controlled to be directly conveyed to the compressor, and at the moment, even if certain water flow of the refrigerating unit is kept, the heating effect on the refrigerant oil is not influenced. When the temperature of the refrigerant oil is low, the refrigerant oil in the oil separator can be controlled to be conveyed to the compressor through the oil cooler, at the moment, the refrigerant oil in the oil cooler and the condenser can be heated through the heat recycling bin or through the heat recycling bin and a heater, and the problems of high power consumption and a poor heating effect are solved.

Description

technical field [0001] The present invention relates to the technical field of air conditioning, and more specifically, to a refrigeration unit and its control method and control system. Background technique [0002] Because the existing low-temperature refrigeration unit has the characteristics of low evaporation temperature and large compression ratio, the temperature of the high-pressure steam discharged from the compressor and the refrigerated oil will be relatively high. When the temperature of the refrigerating oil is too high, the cooling water in the oil cooler is required to cool the refrigerating oil before it can be transferred back to the compressor. When the temperature of the refrigerated oil is too low, the heater on the oil separator is required to electrically heat the refrigerated oil to prevent the refrigerated oil from melting into the refrigerant. [0003] However, relying solely on electric heating to heat the refrigerated oil will not only lead to hig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B13/00F25B43/00F25B43/02F25B49/02F25B41/00F25B41/04F25B41/20F25B41/40
CPCF25B13/00F25B41/00F25B43/00F25B43/02F25B49/02F25B2700/2105F25B41/20
Inventor 颜超齐方成周巍安亚洲练浩民
Owner GREE ELECTRIC APPLIANCES INC
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