Global Patent Index - EP 1101071 A1

EP 1101071 A1 2001-05-23 - METHOD FOR REMOVING ICE CRYSTALS IN A HEAT EXCHANGER GENERATING A DIPHASIC LIQUID-SOLID REFRIGERANT

Title (en)

METHOD FOR REMOVING ICE CRYSTALS IN A HEAT EXCHANGER GENERATING A DIPHASIC LIQUID-SOLID REFRIGERANT

Title (de)

VERFAHREN ZUR LÖSUNG VON EISKRISTALLEN IN EINEM WÄRMETAUSCHER MIT ZWEIPHASIGEN FEST-FLÜSSIG KÄLTETRÄGER

Title (fr)

PROCEDE POUR DETACHER LES CRISTAUX DE GLACE D'UN ECHANGEUR THERMIQUE GENERATEUR D'UN FRIGOPORTEUR DIPHASIQUE LIQUIDE-SOLIDE

Publication

EP 1101071 A1 (FR)

Application

EP 00931340 A

Priority

  • FR 0001405 W
  • FR 9906559 A

Abstract (en)

[origin: FR2794228A1] The invention concerns a method for removing ice crystals which are formed on the surface of the heat-exchanging walls (2) of a generator (1), in contact with a diphasic liquid-solid refrigerant fluid. In order to remove the ice crystals formed, it consists in intermittently circulating in the generator (1) the refrigerant fluid at a speed higher than the nominal speed so as to generate turbulent flows which cause the formed ice crystals to be detached, by being pulled off and by heating the heat-exchanging walls. Preferably the rotational speed of the pump (8) circulating the refrigerant fluid is increased intermittently.

IPC 1-7 (main, further and additional classification)

F25C 5/04; F25D 17/02

IPC 8 full level (invention and additional information)

F25C 5/04 (2006.01); F25D 17/02 (2006.01); F25D 21/06 (2006.01); F28F 19/00 (2006.01)

CPC (invention and additional information)

F28F 19/006 (2013.01); F25C 5/04 (2013.01); F25D 17/02 (2013.01); F25D 21/06 (2013.01)

Citation (search report)

See references of WO 0071945A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

FR 2794228 A1 20001201; FR 2794228 B1 20010907; AT 308021 T 20051115; DE 60023422 D1 20051201; DE 60023422 T2 20060727; EP 1101071 A1 20010523; EP 1101071 B1 20051026; WO 0071945 A1 20001130

INPADOC legal status


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