Refrigeration system and control method and control device thereof

Abstract

The invention provides a refrigeration system and a control method and control device thereof. The control method comprises the steps that detection parameters are obtained; whether the detection parameters meet state setting conditions or not is judged; if yes, a controller judges that the system is in the state and transmits a corresponding instruction. According to the technical scheme, the relationship between key parameters related to the working state of the refrigeration system and detection parameters easy to obtain directly is utilized, the working state of the refrigeration system is judged, and then corresponding control is conducted according to the working state. The refrigeration system and the control method and control device thereof have the advantages that detection elements used for detecting the working states of refrigeration systems in the prior art such as high-voltage switches, low-voltage switches, leeway switches and environmental temperature sensors are omitted, the size of the refrigeration system is reduced to a great extent, and the miniaturization of the refrigeration system is facilitated; compared with the detection conducted by detection elements of the prior art, through the control method, higher accuracy and reliability are achieved, the response speed is higher, and the cost is lower.

Description

technical field [0001] The invention relates to the field of refrigeration equipment. Specifically, the invention relates to a control method of a refrigeration system, and also relates to a control system of the refrigeration system and a refrigeration system. Background technique [0002] With the development of refrigeration technology, refrigeration equipment has been widely used in human production and life. Such as air conditioners, refrigerators and cold storage units, etc. [0003] In the refrigeration system, the evaporator, condenser, compressor and throttle valve are the four essential parts. The evaporator is a device that delivers cold energy, in which the refrigerant evaporates (boils) and becomes vapor, thereby absorbing the heat of the object to be cooled to achieve refrigeration. The compressor is the "heart" of the entire refrigeration system. It is driven by the motor and rotates continuously. It is the power source of the refrigeration cycle and plays ...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a control method of a refrigeration system to solve the problems that the control system of the existing refrigeration system uses multiple components for detection to be able to judge, which leads to the problems of heavy mass, large volume and low reliability of the control system in the entire refrigeration system

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