Energy conservation control device and energy conservation control method of refrigerating system

Abstract

The invention discloses an energy conservation control device and an energy conservation control method of a refrigerating system. The device provided by the invention comprises a control unit and a plurality of temperature or pressure sensors; a plurality of temperature or pressure sensors are arranged on an output pipeline of the refrigerating system; the control unit comprises a data analyzing unit used for analyzing operating efficiency of the system, a mathematical model unit used for computing change trend of the operating efficiency, an operating path planning unit used for figuring out an optimal efficiency operating plan and an information receiving module used for being connected with the units and a plurality of temperature or pressure sensors; and the operating path planning unit controls the operation of a corresponding compressor in accordance with the optical efficiency operating plan. The energy conservation control device and the energy conservation control method of the refrigerating system adopt dynamic entropy valve equalization algorithm, so as to plan and operate the compressor in different energy efficiency values, build the mathematical model and achieve the effect of power saving.

Description

technical field [0001] The invention relates to a control device and method of a refrigeration system, in particular to a hardware and software control implementation method of an air conditioner energy-saving control device additionally installed on the basis of an existing refrigeration system. Background technique [0002] In the refrigeration system in the prior art, such as air conditioning system and cold storage refrigeration system, the general configuration includes: refrigeration unit system, refrigerant circulation system, water circulation system, electrical appliance self-control protection system, heat exchanger, chilled water pump, heat dissipation system and other components, like figure 1 Shown is a schematic diagram of a common refrigeration system in the prior art. [0003] In the current refrigeration system, especially the central air-conditioning system of hypermarkets and buildings, or the refrigeration system of large-scale cold storage, its annual e...

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Problems solved by technology

[0006] During this period, due to the continuous operation of the compressor, the temperature of the outlet water will continue to drop, so that the working efficiency of the compressor will gradually decrease.

Actual cooling capacity = ∫ COP × P × t, due to the decrease of COP value, the actual cooling efficiency will be less than the cooling efficiency COP8 at 8°C, resulting in an increase in power consumption = P × t

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