Refrigerator equipment, refrigerating system and control method thereof

Abstract

The invention relates to refrigerator equipment, a refrigerating system and a control method thereof and belongs to the field of refrigerating equipment. The refrigerating system comprises a refrigerant circulating loop formed by connecting a condenser, an evaporator, a compressor and a throttling device and further comprises a heat regenerator. The control method comprises the following steps ofacquiring a first refrigerant temperature of a refrigerant inlet of a first heat regenerating cavity and a second refrigerant temperature of a refrigerant outlet of a second heat regenerating cavity,a third refrigerant temperature of a refrigerant outlet of the first heat regenerating cavity and a fourth refrigerant temperature of a refrigerant inlet of the evaporator in an operating processes ofthe refrigerating system; and controlling a flow aperture of the throttling device according to the first refrigerant temperature of a refrigerant inlet of a first heat regenerating cavity and a second refrigerant temperature of the refrigerant outlet of the second heat regenerating cavity, the third refrigerant temperature of the refrigerant outlet of the first heat regenerating cavity and the fourth refrigerant temperature of the refrigerant inlet of the evaporator. The throttling device can be controlled precisely, so that a refrigerant at the outlet of the evaporator is not overheated. Heat exchange capacity of the evaporator is utilized fully, so that the refrigerating system works 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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