Control method and device of refrigerating unit, refrigerating unit and storage medium

Abstract

The invention discloses a control method and device of a refrigerating unit, the refrigerating unit and a storage medium. The method comprises the steps that the outdoor temperature of the refrigerating unit is obtained, the indoor temperature of the refrigerating unit is obtained, and the compression ratio of a compressor of the refrigerating unit is obtained; the difference value between the outdoor temperature and the indoor temperature is determined and recorded as the indoor and outdoor temperature difference; determining whether the indoor and outdoor temperature difference is greater than or equal to a set temperature; if the indoor and outdoor temperature difference is smaller than the set temperature, the rotating speed of an outer fan is adjusted according to the compression ratio; and if the indoor and outdoor temperature difference is larger than or equal to the set temperature, the rotating speed of an outer fan of the refrigerating unit is directly adjusted. According to the scheme, by adjusting the starting and running modes of the condensation fan of the full-year refrigerating unit under different working conditions, it can be guaranteed that the full-year refrigerating unit can be stably started and normally run.

Description

technical field [0001] The invention belongs to the technical field of refrigeration units, in particular to a control method, device, refrigeration unit and storage medium for a refrigeration unit, and in particular to a control method, device, refrigeration unit and storage medium for a condensing fan of a year-round refrigeration unit. Background technique [0002] In refrigeration technology, year-round refrigeration units are used on a large scale in chemical, medical, metallurgical, communications and other industries. However, this type of annual refrigeration unit has a wide range of working conditions, and its operating state changes significantly with day, night and season, which brings certain difficulties to the operation stability of the annual refrigeration unit; When operating under working conditions, the operation of the refrigeration unit will be unstable throughout the year due to the large change in the compression ratio. [0003] The above content is on...

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Problems solved by technology

[0004] The object of the present invention is to provide a control method, device, refrigeration unit and storage medium of a refrigeration unit, so as to solve the problems of the year-round refrigeration unit due to large changes in compression ratio when the year-round refrigeration unit operates under different working conditions. The problem of unstable operation can be achieved by adjusting the way the condensing fan of the year-round refrigeration unit starts to operate under different working conditions, which can ensure the stable start-up and normal operation of the year-round refrigeration unit

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