Low temp. Refrigeration system

Low temp. Refrigeration system

  • CN 100,416,187 C
  • Filed: 05/30/2001
  • Issued: 09/03/2008
  • Est. Priority Date: 05/30/2000
  • Status: Active Grant
First Claim
Patent Images

1. long-term refrigeration system of moving continuously under cooling and defrosting mode, it comprises:

  • Compression unit with entrance and exit, and receive cold-producing medium that is in low pressure and the cold-producing medium of discharging high pressure in above-mentioned outlet at above-mentioned inlet;

    Process of refrigerastion unit with high tension loop and low tension loop, above-mentioned high tension loop receives the cold-producing medium from the above-mentioned high pressure of above-mentioned compression unit, above-mentioned low tension loop is transported to the above-mentioned low tension loop of above-mentioned compression unit with the cold-producing medium of above-mentioned low pressure, between the loop of above-mentioned high pressure and low pressure heat exchange takes place;

    Main throttling unit with entrance and exit, the inlet of above-mentioned main throttling unit receive from the cold-producing medium of the high pressure of the above-mentioned high tension loop of above-mentioned process of refrigerastion unit and discharge the cold-producing medium of low pressure in the outlet of above-mentioned main throttling unit;

    Have entrance and exit be used for optionally cool off or the evaporation element of heating load, above-mentioned evaporation element receives the low pressure refrigerant from above-mentioned main throttling unit, and from the above-mentioned low tension loop of the above-mentioned process of refrigerastion of the refrigerant flow direction unit of the outlet of above-mentioned evaporation element;

    Condensing unit in the upstream of above-mentioned main throttling unit and above-mentioned process of refrigerastion unit, above-mentioned condensing unit will be removed and this heat will be discharged from above-mentioned refrigeration system from the heat of the above-mentioned cold-producing medium that is in above-mentioned high pressure of above-mentioned compressor unit;

    First bypass circulation, it comprises that at least one is used to make cold-producing medium stream bypass to walk around the high pressure Zhi Huilu of above-mentioned process of refrigerastion unit high tension loop;

    Second bypass circulation, it comprises that at least one is used to make cold-producing medium stream bypass to walk around the low pressure Zhi Huilu of above-mentioned process of refrigerastion unit low tension loop;

    AndControl system, it is used for according to the closed circulation guiding above-mentioned cold-producing medium through select of the order of selecting between above-mentioned compression unit and above-mentioned evaporation element.

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