Refrigerator for recovering waste heat through latent heat type functional fluid and defrosting system and method

Abstract

The invention provides a refrigerator and a defrosting system and method for recovering waste heat through latent heat type functional fluid, and the refrigerator comprises a liquid storage tank, a defrosting cycle, a heat storage cycle, a circulating pump, an evaporator, a gathering pipe network wound on a compressor and a humidity sensor, and the latent heat type functional fluid serves as an energy transmission medium in the liquid storage tank. Waste heat of the compressor is transmitted to the surface of the evaporator for defrosting through pumping of a circulating pump, pipeline transmission and heat exchange of a gathering pipe network, and a humidity sensor can indirectly control opening and closing of defrosting circulation by detecting the surface humidity of the evaporator. According to the invention, two characteristics of energy storage and medium transportation of latent heat type functional fluid are integrated, so that the matched characteristics of energy supply and demand parties in time and strength are exerted to the utmost extent, and intelligent defrosting, energy saving, power consumption reduction, low carbon and environmental protection, efficient heat exchange and stable operation are realized.

Description

technical field [0001] The invention relates to the technical field of refrigerator refrigeration, in particular to a smart defrosting method utilizing latent heat type functional fluid. Background technique [0002] In recent years, with the improvement of people's living standards, the popularity of refrigerators has become higher and higher, and refrigerators have become one of the necessary electrical appliances in people's daily life. With the increasing demands of society for energy conservation, emission reduction, environmental protection and sustainable development, refrigerators are an important part of household energy consumption, and reducing the energy consumption of refrigerators has very important application value. At present, evaporator frosting is a very common phenomenon, and due to the small thermal conductivity of the frost layer, it will not only reduce the heat transfer performance of the evaporator, increase energy consumption, but even cause system ...

AI Technical Summary

Problems solved by technology

The disadvantage of active defrosting is that the power consumption for defrosting accounts for about 10% to 15% of the power consumption of the whole machine, resulting in a large energy consumption of the refrigerator as a whole

The disadvantage of passive defrosting is that once the cold surface is covered with a layer of frost, the surface treatment technology no longer has any effect

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