B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 3/06 (2006.01) B01D 1/30 (2006.01) B01D 5/00 (2006.01) C12G 1/02 (2006.01)
Patent
CA 2449129
A system for cooling a heated juice by partial low-pressure evaporation, said juice comprising a charged liquid, preferably juice from a harvested crop, said system comprising a vat in which the juice is subjected to various pressure reductions, said vat (4) comprising at least two compartments(5,6) which communicate with each other by means of a pulsed-effect valve, said juice being subjected to two different decreasing pressure reductions in said compartments, each compartment being connected to a condenser (19,25) which can condense the vapor produced by the pressure reduction. The condensers are serially mounted or parallel mounted and connected to a common vacuum pump (34) by means of at least one control valve (18) which can permanently adjust the pressure in each condenser to a value which is lower than the saturating vapor pressure corresponding to the temperature of the vapor created in each of the condensers. The invention is characterized in that the compartments (5,6) of the vat are superposed and communicate with each other therein by means of an opening (8) through which the juice passes, said opening being closed either fully or partially by a variably positioned shutter element, creating a pulsed effect in order to remove the solid particles contained in the juice.
Installation de refroidissement par vaporisation partielle à basse pression d'un jus chauffé, constitué d'un liquide chargé et de préférence d'un jus de vendange, comportant une cuve où ce jus est soumis à plusieurs détentes successives, ladite cuve (4) comportant au moins deux compartiments, communicants (5, 6) par un clapet à effet pulsé, le jus subissant dans ces compartiments des détentes à deux pressions différentes et décroissantes, chaque compartiment étant relié à un condenseur (19, 25), apte à condenser la vapeur produite par la détente, ces condenseurs étant montés en série ou en parallèle et reliés à une pompe à vide (34) commune par l'intermédiaire d'au moins une vanne de réglage (18) capable d'ajuster en permanence la pression dans chaque condenseur à une valeur inférieure à la tension de vapeur saturante correspondant à la température de la vapeur créée dans chacun de ces condenseurs, caractérisée en ce que les compartiments (5,6) de la cuve sont superposés et communiquent entre eux, dans celle-ci, par un orifice (8) de passage du jus, fermé en tout ou en partie par un obturateur à positionnement variable, créant un effet pulsé pour l'évacuation des particules solides contenues dans le jus.
Cadiot Dominique
Callede David
Nadeau Jean-Pierre
Sebastian Patrick
Centre National de La Recherche Scientifique (c.n.r.s.)
Les Vignobles Andre Lurton
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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