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Electromagnetic suspending air expanding absorption type refrigeration method and its refrigerating air conditioner set

An absorption refrigeration and electromagnetic levitation technology, applied in refrigerators, refrigeration and liquefaction, compressors, etc., can solve problems such as environmental pollution and low refrigeration efficiency

Inactive Publication Date: 2003-04-16
XI AN JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the key problems of environmental pollution or low refrigeration efficiency existing in existing refrigeration and air-conditioning units, the object of the present invention is to provide a new refrigeration method and a refrigeration and air-conditioning unit designed and prepared using this method, namely electromagnetic levitation air expansion absorption type Refrigeration method and refrigeration air-conditioning unit thereof

Method used

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  • Electromagnetic suspending air expanding absorption type refrigeration method and its refrigerating air conditioner set
  • Electromagnetic suspending air expanding absorption type refrigeration method and its refrigerating air conditioner set
  • Electromagnetic suspending air expanding absorption type refrigeration method and its refrigerating air conditioner set

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specific example 1

[0081] Specific example 1: The refrigeration efficiency of air expansion is 0.7; the efficiency of absorption refrigeration (referring to the refrigeration rate of the domestic double-effect lithium bromide unit) is 1.31; the mechanical efficiency of the electromagnetic levitation turboexpander system is 0.98; then, according to the present invention The refrigeration efficiency of the electromagnetic suspension air expansion absorption refrigeration and air-conditioning unit prepared by the technical proposal is 2.89.

specific example 2

[0082] Specific example 2: The refrigeration efficiency of air expansion is 0.7; the efficiency of absorption refrigeration (referring to the refrigeration rate of foreign three-effect lithium bromide units) is 1.7; the mechanical efficiency of the electromagnetic levitation turboexpander system is 0.98; then, according to the present invention The refrigeration efficiency of the electromagnetic suspension air expansion absorption refrigerating and air-conditioning unit prepared by the technical scheme is 3.54.

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Abstract

The techniques of electromagnetism suspension and frequency conversion drive make the unit of refrigeration and air-condition possess the features of high speed, large press ratio, small volume, light weight, high efficiency and no pollution etc. Two refrigeration processes, one heating process and two different forms of heat exchanging process of the air-conditioning cold air are adopted in the unit. The air as the refrigeration working-medium from atmosphere enters into the turbo-expander directly to obtain the cooled air in low temperature. The cooled air through the air heat exchanger reaches the turbo centrifugal compressor where the absorption refrigeration is carried out. The refrigerant produced is circulated through water between the heat exchanger and the evaporator.

Description

[0001] 1. Field [0002] The invention belongs to the field of refrigeration, and relates to a refrigeration method and a refrigeration and air-conditioning unit designed by applying this method, and in particular to a refrigeration method that expands and absorbs two refrigeration links by electromagnetically suspended air and its high-efficiency preparation , No pollution, "zero" pollution refrigeration and air-conditioning unit. 2. Background technology [0003] At present, all applications at home and abroad are in the freezing temperature zone (generally referring to the temperature higher than -153℃, such as food freezing, the storage temperature is -18℃ to -25℃; for air conditioning, the temperature of the cold source is 0℃~10℃, etc. Most of the refrigeration equipment uses the phase change principle of the refrigerant to obtain low temperature. For example, the refrigeration turbine centrifugal compressor that usually uses freon, ammonia, carbon dioxide and hydrocarbons, et...

Claims

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Application Information

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IPC IPC(8): F25B11/00
Inventor 王世琥严俊
Owner XI AN JIAOTONG UNIV
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