Equipment for producing cooling packs consisting of a shell made of a porous material containing an amount of carbon-dioxide snow enclosed and retained inside the casing

Abstract

The invention relates to equipment for producing cool packs containing an amount of carbon-dioxide snow, which includes: a set of at least two cells, each of which is capable of receiving and supporting a shell to be filled; a feeding tube connected, at the upstream portion thereof, to a liquid CO2 source; a set of at least two injection manifolds, each injection manifold being located opposite a cell in which a casing to be filled is to be positioned, and each manifold being connected, at the upstream portion thereof, to the feeding tube, wherein each manifold comprises an injection port at at least one location along the length thereof, the equipment being characterized in that: i) the end of each manifold opposite the feeding tube is formed as a sealed end provided in the form of a substantially rounded tip; j) each injection port located on a manifold is a provided as a threaded opening having a given diameter D and is capable of receiving an injection nozzle by means of screwing; k) said equipment comprises at least two injection nozzles, each injection nozzle being provided in the form of a part that is cylindrical over at least a portion of the length thereof, said cylinder being a hollow cylinder, the threaded outer diameter of which is equal to the diameter D of at least one of the threaded openings of at least one of the manifolds, and the inner diameter d of which is less than D.

Description

technical field [0001] The invention relates to the field of devices for packaging carbon dioxide snow in plastic films. Background technique [0002] It is known that for frozen, deep-frozen or even fresh products, especially food products, which must be kept at a controlled temperature of +2°C to -20°C or even lower, in order not to interrupt the product from being cooled, frozen or deep-frozen The cryogenic chain, until it is used, requires warehouses, transport units and stores with refrigeration equipment, usually electrical equipment at present. In many cases, however, transport cannot be carried out without the product being removed from the freezer in which it is stored, so this leads to a high risk of temperature rise, especially when climatic conditions are unfavorable. In order to avoid temperature increases during transport of such products, it is common practice to place such products in an environment maintained at a controlled temperature in an isothermal cha...

AI Technical Summary

Problems solved by technology

[0009] Each jet duct has jet orifices machined along its length, and it is therefore understood that in order to alter the jet delivery velocity, one or more of the jet ducts need to be removed and the jet orifices modified (reworked), sometimes This represents a complex operation that provides little flexibility

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