Refrigerator device, refrigeration system and control method of refrigeration system

Abstract

The invention relates to a refrigerator device, a refrigeration system and a control method of the refrigeration system, and belongs to the field of refrigeration equipment. The refrigeration system comprises a refrigerant circulation loop formed by connecting a condenser, an evaporator, a compressor and a throttling device, and further comprises a heat regenerator. The heat regenerator comprisesa first heat regeneration cavity and a second heat regeneration cavity. The control method comprises the steps of obtaining a first temperature of an external environment which conducts heat exchangewith the condenser and a suction temperature of the compressor in an operation process of the refrigeration system, and controlling a flow opening degree of the throttling device according to the first temperature of the external environment and the suction temperature of the compressor. The control method of the refrigeration system does not need to rely on parameters detected by a sensor arranged on the evaporator when controlling the opening degree, especially for equipment such as a refrigerator arranged in a foaming layer, installation of the sensor is effectively simplified, maintenanceis facilitated, and accurate adjustment control over the opening degree of the throttling device such as an electronic expansion valve can still be guaranteed.

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-mentioned control process requires multiple sensors such as temperature sensors and pressure sensors to be installed in the middle or outlet of the evaporator; since the evaporators of refrigeration equipment such as refrigerators are mostly placed in the foam layer, on the one hand, the installation of the above-mentioned sensors is inconvenient, and on the other hand On the other hand, it is not easy to disassemble and repair when the sensor fails

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