Patent ID: 6688117
Filing Date: 2004-02-10
Classification: F04D,F25C,Y02P

Abstract:
A method of improving the performance of a heat-pump installation for making ice operating on the principle of mechanical water vapor compression and comprising an evaporator-freezer chamber communicating with a compressor chamber comprising at least one centrifugal compressor unit, said method comprising:a. providing a first droplet separator of the louver type between the evaporator-freezer chamber and the compressor chamber, for primary separation of the coarser droplets; b. providing a second droplet separator of the knitmesh type downstream of the first droplet separator, for secondary separation of the remaining fine spray, and c. providing a continuous or intermittent spray of a dilute solution of a highly water-soluble inorganic salt counter-currently to the vapor flow, from a plurality of spray nozzles located between said first and second droplet separators and facing said first droplet separator.