METHOD FOR PUMPING HEAT TRANSFER AGENT THROUGH DUCT (VARIANTS) Russian patent published in 2005 - IPC

FIELD: heat and mass transfer processes, namely operation of evaporation- condensation systems.

SUBSTANCE: method for pumping heat transfer agent through duct having cavity and two openings, from first opening to second one comprises steps of filling cavity with heat transfer agent from first opening and displacing heat transfer agent from cavity to second opening through capillary partition mounted in duct in front of cavity and closing duct. Displacement is realized through second capillary partition mounted in duct in front of second opening and closing duct. During displacement, process preventing transfer of heat agent back from cavity to first opening is realized due to formation in capillary micro-ducts of first capillary partition inclusions consisting of gas and(or) vapor. It is possible to realize during filling stage, process preventing transfer of heat agent back to cavity from side of second opening due to formation in capillary micro-ducts of second capillary partition inclusions consisting of gas and(or) vapor. Method for pumping heat transfer agent through duct comprises steps of realizing repeated processes of liquid transfer in predetermined direction through duct from one end of duct to other end of duct due to inlet pressure exceeding outlet pressure and realizing repeated processes preventing heat agent transfer in direction opposite to preset direction when outlet pressure exceeds inlet pressure through capillary partition mounted in duct and closing it. Process preventing transfer of heat agent in direction opposite to preset direction when output pressure exceeds inlet pressure is realized due to formation in micro-ducts of capillary partition inclusions consisting of gas and(or) vapor. Capillary micro-ducts may have portions with cross size lowered in direction opposite relative to predetermined direction of pumping heat transfer agent through duct.

EFFECT: enhanced efficiency of evaporation-condensation apparatus operating due to pumping heat transfer agent at arbitrary spatial arrangement of members of apparatus having no movable mechanical parts and operating without action of mass forces, improved reliability of pumping heat transfer agent through duct.

13 cl, 24 dwg