RU2149327C1 - Refrigerator for food products - Google Patents

Abstract

FIELD: refrigerating engineering. SUBSTANCE: refrigerator has detachable flexible screens positioned so as to adhere to inner surfaces of walls and ceilings of all chambers. Screen has layer of fibrous base manufactured from chemical organic filaments or threads with continuous section, and low blackness layer of metallized polymeric film, or metal foil, or vacuum deposited metal layer, with both layers of screen being interconnected. EFFECT: reduced power used for producing and consuming cold and reduced product drying losses during storage. 2 dwg, 8 ex

Description

 The invention relates to refrigeration equipment used for storing food products, namely, refrigerators, and can be used in the construction and reconstruction of refrigerators for food products.

 Known refrigerator for storing frozen products containing refrigerators, a cooling system, frame and ice screens (Kurylev E.S., Gerasimov N.A., Refrigeration units. L .: Mashinostroenie, 1980, 154-156).

 However, such a refrigerator does not provide long-term use of screens due to evaporation of moisture from the surface of ice screens. In addition, increased operating costs associated with freezing the surface of the screens.

 Known refrigerator for long-term storage of unpacked frozen food products, containing wall and ceiling cooling batteries, ice screens mounted vertically between the ceiling and the floor with the formation of gaps with stands, and equipped with a ceiling screen containing a top layer of material reflecting thermal radiation located above ceiling batteries with clearance from the ceiling, and a lower layer of lightweight material to shelter a food stack, located under the ceiling batteries and accommodate with the formation of an air gap between it and the upper layer. The upper layer of the ceiling screen is made of metallized polyethylene terephthalate film and is fixedly attached to the slats mounted on the ceiling, the lower layer of the ceiling screen is made of dense flexible material (lightweight tent fabric) and is mounted on cables, which through the blocks mounted on the ceiling allow you to raise and lower this layer (SU 1670311, class F 25 D 13/00, 08/15/91).

 However, a refrigerator with such a ceiling screen made of layers of materials not bonded to each other, located separately from each other, does not provide long-term use of the screen due to the low strength and wear resistance of the metallized polyethylene terephthalate film and rather effective reduction of food drying during storage due to low reflectivity of the inner surface of the walls of the refrigerator.

 Closest to the invention is a refrigerator for storing food products, containing refrigerators formed by the outer and inner fences, equipped with removable screens of flexible material, placed along the inner surfaces of the outer fences, and cooling devices (SU N 579507, class F 25 D 13 / 00, 05.11.77).

 However, a refrigerator with such removable screens of flexible material placed along the inner surfaces of the outer fences does not provide a sufficiently effective reduction in energy costs for the production and consumption of artificial cold and a decrease in food shrinkage during storage due to the low reflectivity of the flexible material of the removable screens.

 This invention is aimed at solving the technical problem of reducing the energy consumption for the production and consumption of artificial cold and reducing food drying during storage due to the high reflectivity of the flexible material of the removable screens placed on the inner surface of the walls and on the ceiling of the refrigerator.

 To achieve this technical result, a refrigerator for food products containing refrigerating chambers formed by the outer and inner fences and provided with removable screens of flexible material placed along the inner surfaces of the outer fences and cooling devices is characterized in that the flexible material of the removable screens contains fastened together a layer of a fibrous base made of chemical organic fibers or filaments, continuous in cross section, and a layer with a low st The degree of blackness in the form of a metallized polymer film or metal foil used for packaging food products, or in the form of a metal layer sprayed in vacuum, and the screens are made to fit to the inner surface of the walls and in addition to the ceiling of all refrigerators.

 The invention is illustrated by drawings, where in FIG. 1 is a schematic diagram of a food refrigerator; FIG. 2 shows the location of removable screens of flexible material in a refrigerator.

 The refrigerator comprises refrigerating chambers 1 formed by external and internal fences 2, 3 and provided with removable shields 4 arranged and fixed by rails 5 so that they can fit to the inner surface 6 of external fencing 2 and the ceiling 7 of the refrigerating chamber 1, and cooling devices 8 (shown in FIG. . 1 and 2 schematically).

 The flexible material of the removable screens 4 contains a layer of a fibrous base bonded to each other made of chemical organic fibers or continuous filaments in cross section, and a layer with a low degree of blackness facing the chamber.

 The fibrous base of the flexible material of the removable screens is made of viscose, or kapron, or lavsan, or polypropylene commercially available continuous in cross section fibers or threads in the form of fabric, or knitted fabric, or non-woven material.

 The outer layer of a material with a low degree of blackness (not more than 0.06) facing the chamber is made of a polymer film used for food packaging, preferably metallized with aluminum, or metal, for example aluminum, foil for food packaging, or sprayed in vacuum of a metal, for example aluminum, layer.

 The invention is illustrated by the following examples of its application.

 Example 1

 The refrigerator for food products contains removable screens made of flexible material made of a layer of fibrous base bonded to each other in the form of a fabric of viscose yarn and facing the camera layer in the form of a polymer film metallized with aluminum from the outside.

 Example 2

 The refrigerator for food products contains removable screens of flexible material made of a layer of fibrous base bonded to each other in the form of a knitted fabric of viscose yarns and a layer facing the chamber in the form of a polymer film metallized with aluminum from the outside.

 Example 3

 The refrigerator for food products contains removable screens made of flexible material made of a layer of fibrous base bonded to each other in the form of a nonwoven fabric made of viscose fibers and facing the camera layer in the form of a polymer film metallized with aluminum from the outside.

 Example 4

 The refrigerator for food products contains removable screens made of flexible material made of a layer of fibrous base bonded to each other in the form of a fabric of kapron threads and a layer facing the chamber in the form of a polymer film metallized with aluminum on both sides.

 Example 5

 The refrigerator for food products contains removable screens made of flexible material made of a layer of fibrous base bonded to each other in the form of a knitted fabric of kapron threads and facing the chamber layer in the form of a polymer film metallized with aluminum on both sides.

 Example 6

 The refrigerator for food products contains removable screens made of flexible material made of a layer of fibrous base bonded to each other in the form of a non-woven material of nylon fibers and threads and facing the camera layer in the form of a polymer film metallized with aluminum on both sides.

 Example 7

 The refrigerator for food products contains removable screens made of flexible material made of a layer of fibrous base bonded to each other in the form of a fabric of dacron threads and facing the camera an aluminum layer sprayed in vacuum.

 Example 8

 The refrigerator for food products contains removable screens of flexible material made of a layer of fibrous base bonded to each other in the form of a fabric of polypropylene yarns and a layer facing the chamber in the form of aluminum foil.

 When using this refrigerator, energy costs for the production and consumption of artificial cold are reduced and food shrinkage during storage is reduced, because a combination of building structures and removable screens made of flexible material with increased insulation properties due to the combination of high reflectivity and water, steam - gas tightness of the layer facing the chamber made of a metallized, preferably aluminum, polymer film or m thallic, preferably aluminum, foil, or in the form of a vacuum-sprayed aluminum layer, and low thermal conductivity of the fibrous base made of chemical organic fibers or threads, continuous in cross section, for example viscose, or kapron, or lavsan, or polypropylene, as well as necessary strength and wear resistance.

Claims (1)

 A food refrigerator containing refrigerating chambers formed by the outer and inner fences and provided with removable screens of flexible material placed along the inner surfaces of the outer fences and cooling devices, characterized in that the flexible material of the removable screens contains a layer of fibrous base bonded to each other, made made of chemical organic fibers or continuous filaments in cross section, and a layer with a low degree of blackness facing the chamber in the form of a metallized floor dimensional film or a metal foil used to package food products or as a vacuum deposited metal layer, and the screens are arranged to bear against the inner surface of the walls and the ceiling in addition to all refrigerating chambers.

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