Pure phase-changing apyretic frigeration technological process and the apparatus thereof

Pure phase-changing apyretic frigeration technological process and the apparatus thereof

  • CN 1,186,935 A
  • Filed: 10/27/1997
  • Published: 07/08/1998
  • Est. Priority Date: 10/27/1997
  • Status: Abandoned Application
First Claim
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1. , a kind of pure phase-changing apyretic frigeration technological process, its chopped-off head kind of refrigeration cycle are liquid refrigeration working medium carburation by evaporation, discharge the latent heat of vaporization, produce refrigerating capacity, the vapour pressure that is generated shortens the higher pressure high-temperature gas into, cools off by heat elimination and cooling, be condensed into liquid refrigerant, liquid refrigerant further cools off after the throttling, and then the heat absorption sweat cooling, steam is detached again, reduce steam pressure, make evaporating temperature reach design temperature;

  • It is characterized in that, multi-level phase change kind of refrigeration cycle more than the secondary that system is made up of chopped-off head and final stage kind of refrigeration cycle constitutes, the refrigeration compressor and the condenser of chopped-off head Vapor Compression Refrigeration Cycle are immersed in time one-level liquid refrigeration working medium, the heat of its generation is all absorbed by the latent heat of vaporization of time one-level liquid refrigeration working medium, thereby make the refrigeration evaporator temperature of chopped-off head kind of refrigeration cycle and the temperature difference between the condensation environment temperature, be reduced to and make the normal refrigeration of chopped-off head kind of refrigeration cycle realization;

    Other kind of refrigeration cycle at different levels after the chopped-off head kind of refrigeration cycle are that phase transformation is with cold kind of refrigeration cycle, they all utilize the cold of the more low temperature that the upper level kind of refrigeration cycle provided, the steam that is produced behind the condensation of the lowering the temperature refrigeration working medium freezing by change of state at the corresponding levels, make working medium revert to liquid phase by gas phase, realize that phase transformation is with cold kind of refrigeration cycle, each grade phase transformation with cold kind of refrigeration cycle in, steam at first is condensed into supercooled liquid working medium, supercooled liquid working medium is dirty layer by layer, carry out heat convection with the steam that constantly enters from the bottom and trace back layer by layer, at last become the liquid refrigerant that approaches saturation temperature continuously, the cold that the condensation liquefaction steam process is consumed is very little;

    With in the cold kind of refrigeration cycle, the refrigerating capacity that refrigeration working medium phase transformation vaporization is provided is much larger than the liquefaction cold that steam consumed with the one-level phase transformation;

    The final stage phase transformation is with cold kind of refrigeration cycle, the external cooling of its refrigerating capacity;

    The evaporating temperature of the refrigeration working medium in the kind of refrigeration cycle at different levels connects order by system and increases step by step, and the evaporating temperature of chopped-off head refrigeration working medium is low, and final stage is high.

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