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Chemically assisted mechanical refrigeration process

  • US 4,674,297 A
  • Filed: 02/13/1984
  • Issued: 06/23/1987
  • Est. Priority Date: 09/29/1983
  • Status: Expired due to Term
First Claim
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1. A chemically assisted mechanical refrigeration apparatus comprising:

  • an evaporator for receiving a refrigerant-solvent solution at a pressure sufficient to allow the refrigerant to evolve from the solvent and absorb a substantial portion of the heats of vaporization and dissolution of the refrigerant-solvent solution from a working medium in heat exchange relation with the evolving refrigerant-solvent solution;

    a compressor adapted to accept a gaseous stream and a liquid stream and raise the pressure of said streams upon combination of the streams;

    a gas-evolving solvent conduit connected at one end to the evaporator and at the other end to the compressor for passing gas-evolving solvent from the evaporator to the compressor;

    a refrigerant conduit connected at one end to the evaporator and at the other end to the compressor for passing a gaseous refrigerant from the evaporator to the compressor, said refrigerant conduit being in fluid communication with the solvent conduit for receiving gases evolving from the solvent passing through the solvent conduit;

    a mixer configured to receive solvent and refrigerant at a pressure sufficient to promote substantial solution of the refrigerant in the solvent and form a solution;

    a combined solvent-refrigerant conduit connected at one end to the compressor and at the other end to the mixer, said conduit being configured to allow passage of a combined refrigerant solvent stream under pressure;

    a solution conduit having one end connected to the mixer and the other end connected to the evaporator, said solution conduit being adapted to facilitate any reduction in pressure between the mixer and the evaporator; and

    an economizer for placing the gas-evolving solvent conduit and the solution conduit in heat exchange relation with each other.

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