Refrigerating method and refrigerator based on hydroscopic expanding air and absorbing lithium bromide

An absorption refrigeration, lithium bromide technology, applied in pollution-free, refrigeration and air-conditioning units, "zero" pollution refrigeration and air-conditioning units, and high-efficiency fields, can solve problems such as low refrigeration efficiency and environmental pollution

Inactive Publication Date: 2003-11-05
XI AN JIAOTONG UNIV +1
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  • Abstract
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Problems solved by technology

[0005] In order to solve the key problems of environmental pollution or low refrigeration efficiency existing in existing refrigeration and air-conditioning units, the present invention proposes an air expansion moisture absorption / lithium bromide absorption refrigeration method and a refrigeration and air-conditioning unit designed using this method

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  • Refrigerating method and refrigerator based on hydroscopic expanding air and absorbing lithium bromide
  • Refrigerating method and refrigerator based on hydroscopic expanding air and absorbing lithium bromide
  • Refrigerating method and refrigerator based on hydroscopic expanding air and absorbing lithium bromide

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Embodiment Construction

[0022] According to the technical solution of the present invention, considering the characteristics of a vacuum negative pressure zone between the exhaust port of the expander and the air inlet of the compressor, the present invention sprays water mist at the air inlet of the cold side of the air heat exchanger to make it Phase change evaporation occurs under low temperature vacuum negative pressure to obtain latent heat of evaporation (generation of cold). The present invention is called the air expansion moisture absorption phase change evaporative refrigeration method. The calculation results show that when the low-temperature humid air at the cold side exhaust port of the air heat exchanger reaches saturation and the relative humidity of the ambient atmosphere is 70%, the refrigeration efficiency of the air expansion moisture absorption refrigeration is 3.0-4.0 (this refrigeration efficiency has been patented 02114677.2 5 times the refrigeration efficiency of the first st...

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Abstract

The present invention discloses one kind of refrigerating method based on air expansion to absorb moisture and absorption of lithium bromide and corresponding refrigerating air conditioner set designed according to the said method. By means of the technology of inverse booster opened air expanding and moisture absorbing technology with high speed variable frequency motor for direct driving, three refrigerating courses, one heating course and two different air conditioning cold air heat exchanging courses are realized in one set resulting in greatly raised refrigerating efficiency. The set has air and water as refrigerating medium and thus is green. The present invention has the advantages of high speed, small volume, light weight, great flow rate, high refrigerating efficiency, convenient load regulation, no pollution, etc.

Description

1. Technical field [0001] The invention belongs to the field of refrigeration and air-conditioning, and relates to a refrigeration method and a refrigeration and air-conditioning unit designed using the method. In particular, it relates to a method using three refrigeration links of air expansion, hygroscopic phase transition and absorption, and a high-efficiency, pollution-free, "zero" pollution refrigeration and air-conditioning unit realized by the method. 2. Background technology [0002] At present, all applications at home and abroad are in the freezing temperature zone (generally refers to the temperature higher than -153°C, such as food freezing, its storage temperature is -18°C to -25°C; air conditioning, its cold source temperature is 0°C to 10°C, etc. ) of refrigeration equipment, most of them use the principle of phase change of refrigerant to obtain low temperature, such as refrigeration compressors that usually use Freon, ammonia, carbon dioxide and hydrocarbon...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B9/06F25B15/06F25B25/00
CPCY02A30/27Y02B30/62
Inventor 王世虎贾友祥严俊
Owner XI AN JIAOTONG UNIV
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