F - Mech Eng,Light,Heat,Weapons – 17 – C
Patent
F - Mech Eng,Light,Heat,Weapons
17
C
F17C 7/04 (2006.01) A23B 7/00 (2006.01) B01B 1/00 (2006.01)
Patent
CA 2754983
The invention relates to a method and to a device for gassing, wherein a gas mixture of a gassing agent and of a cryogenic liquid is vaporized in that the mixture, which is pressurized in a storage container, is guided through a pressure reducing valve, so that the mixture is vaporized completely and the steam is supplied for gassing goods. According to a first aspect of the instant invention, the temperature of the mixture is maintained in the storage container such that it forms an overcritical fluid. Through this, a distillation of the gassing agent is avoided. According to a second aspect of the instant invention, the vaporized mixture is diffused by adding compressed air and the ratio between mixture and the compressed air is adjusted by means of replaceable screens and/or adjustable pressure reducing valves. Through this, the ratio between the mixture and the compressed air can be varied freely.
L'invention concerne un procédé et un dispositif de fumigation, un mélange de gaz composé d'un agent de fumigation et d'un liquide cryogène est évaporé, en ce sens que le mélange se trouvant sous pression dans un réservoir est guidé à travers une vanne de détente afin que le mélange soit totalement évaporé et la vapeur de fumigation est acheminée vers un produit. Selon un premier aspect de la présente invention, le mélange dans le réservoir est tempéré de manière à former un fluide supercritique. Cela empêche une distillation de l'agent de fumigation. Selon un deuxième aspect de la présente invention, le mélange évaporé est pulvérisé en ajoutant de l'air comprimé et le rapport entre le mélange et l'air comprimé est réglé au moyen d'obturateurs interchangeables et/ou de vannes de détente réglables. Il est ainsi possible de faire varier librement le rapport entre le mélange et l'air comprimé.
Gowling Lafleur Henderson Llp
Linde Aktiengesellschaft
LandOfFree
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