Stepped cold supplying and accumulating device of thermoelectric refrigerator

Abstract

The invention relates to a stepped cold supplying and accumulating device of a thermoelectric refrigerator. The thermoelectric refrigerator is adopted and combined with a low-temperature cold supplying circulation technology, and an air heat dissipation device or a circulation cooling water system of a conventional thermoelectric refrigerator is not adopted, so that the efficiency of a high-temperature thermoelectric refrigerator is effectively increased; a cold accumulating technology is combined, so that the operation elasticity of the system is increased; and a stepped cold supplying technology is adopted, the comprehensive efficiency of the thermoelectric refrigerator can reach above 50%, and the equipment maintenance load is greatly reduced than the maintenance load of the conventional thermoelectric refrigerator, so that the economic, social and environmental-friendly benefits are very obvious.

Description

technical field [0001] The invention relates to a thermoelectric refrigerator cascade cooling supply and storage device, specifically belonging to the technical field of low-temperature refrigeration. Background technique [0002] Modern refrigeration technology, as a science, was developed in the middle and late nineteenth century. Before that, back to the ancestors of mankind, people knew the use of cold and simple artificial refrigeration very early: using the cellar as a cold storage room , has used spring water to cool storerooms for 5,000 years. [0003] After the twentieth century, refrigeration technology has made greater development: in 1910, the domestic refrigerator came out, and in 1917 it began to be put on the market as a commodity in the United States. In 1930, the emergence of freon refrigerants and the use of freon refrigerators brought new changes to refrigeration technology. In the 1970s, people conducted a lot of research on mixed working fluids, and be...

AI Technical Summary

Problems solved by technology

[0018] 2) The thermal efficiency of the Carnot cycle can only be less than 1, never equal to 1, because T 1 =∞ or T 2 =0 is impossible

[0021] 5) The limit point of the Carnot cycle is the ambient temperature of the atmosphere, and the Carnot cycle does not give a clear answer to the refrigeration process cycle below the ambient temperature

[0023] However, using the basic theory of thermodynamics cannot give a concise, clear and intuitive explanation of the refrigeration cycle.

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