Refrigerator equipment, refrigeration system and control method thereof

Abstract

The application relates to a refrigerator device, a refrigeration system and a control method thereof, and belongs to the field of refrigeration equipment. The refrigeration system includes a refrigerant circulation loop formed by connecting a condenser, an evaporator, a compressor and a throttling device, and also includes a regenerator. The temperature of the refrigerant and the temperature of the second refrigerant at the refrigerant outlet of the second regenerative cavity, the temperature of the third refrigerant at the refrigerant outlet of the first regenerative cavity, and the temperature of the fourth refrigerant at the refrigerant inlet of the evaporator; according to the refrigerant temperature of the first regenerative cavity The temperature of the first refrigerant at the inlet, the temperature of the second refrigerant at the outlet of the second regenerative chamber, the temperature of the third refrigerant at the outlet of the refrigerant of the first regenerative chamber, and the temperature of the fourth refrigerant at the inlet of the refrigerant of the evaporator, control and adjust the throttling The flow opening of the device. It can precisely control the throttling device, so that the refrigerant at the outlet of the evaporator does not overheat, make full use of the heat exchange capacity of the evaporator, and make the refrigeration system work efficiently.

Description

technical field [0001] The present application relates to the field of refrigeration equipment, for example, to a refrigerator equipment, a refrigeration system and a control method thereof. Background technique [0002] The electronic expansion valve is a throttling element that can adjust the refrigerant flow of the refrigeration device according to the preset program. It is often used for the throttling control of the refrigerant flow of refrigeration equipment such as refrigerators and air conditioners; In severe or wide range of operating conditions, traditional throttling elements (such as capillary tubes, thermal expansion valves, etc.) can no longer meet the requirements of comfort and energy saving. more and more widely used. [0003] The electronic expansion valve has the advantages of fast response and action speed. Generally, it only takes a few seconds to go from fully closed to fully open state. The opening and closing characteristics and speed can be set arti...

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Problems solved by technology

[0005] The above control process controls the opening of the throttling device according to the degree of superheat at the outlet of the evaporator. When the outlet of the evaporator of the refrigeration system is overheated, the heat transfer capacity of the refrigeration system will not be fully utilized, which will lead to a decrease in the heat transfer efficiency of the system. reduce

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