RU209966U9 - Isothermal container - Google Patents

Abstract

The utility model relates to heavy insulated containers, stationary or transported by road, rail or sea. The insulated container contains a heat-insulating body, including a supporting frame and side and end 16 walls fixed on it, a roof 13 and a floor. The side and end walls, as well as the roof 13 of the container are made of metal sheets 7 located on the outer side of the body and interconnected with each other with a thickness of 1.5-2.0 mm, to which panels 6 of extruded polystyrene foam with a density of 30-40 kg are attached from the inside by means of glue / m3 and 80-100 mm thick. On the other side, panels 6 are glued together with metal sheets 8 0.5-1.5 mm thick located on the inside of the container body. The technical result of the utility model is to increase the strength properties of the isothermal container while simplifying the process of its manufacture.

Description

The utility model relates to heavy-duty containers intended primarily for the transportation and storage of food products requiring compliance with special temperature conditions, namely, insulated refrigerated containers, stationary or transported by road, rail or sea.

Known is an isothermal frameless van, consisting of sandwich panels of the roof, front and side sides, doors made using filler technology with polyurethane foam insulation. The van also includes a steel welded base frame with a floor covering with insulating panels made of extruded polystyrene foam. Sandwich panels are fixed to each other and to the flooring by means of adhesive systems and aluminum profiles. (RU 200522, class B60P3/20, published 10/28/2020).

Due to the lack of a power frame, the known van is not strong enough in operation.

Also known isothermal container-thermos, containing a body with a heat-insulating coating of polyurethane foam and inner lining. The heat-insulating coating is placed in the space between the housing wall and the inner skin, and the heat-insulating coating is made multilayer, consisting of two layers of polyurethane foam and a polyurethane foam sandwich panel placed between them, while the first layer of polyurethane foam is applied layer by layer by spraying onto the inner surface of the housing walls, and the second layer - on a sandwich panel (RU 75997, class B60P3 / 20, published on September 10, 2008).

The disadvantage of the above analog is a complex and expensive technology for the formation of a heat-insulating coating.

Closest to the proposed is an isothermal van body having an all-metal frame, consisting of frames of van body elements, welded from a profile pipe, included in heat-insulating panels containing outer and inner skins. Heat-insulating panels contain a combined heat-insulating layer consisting of strips of deformable polystyrene foam forming cavities filled with polyurethane foam (RU 198379, class B60P3 / 20, published on 02.07.2020). This device is taken as a prototype.

The known device is characterized by a complex and time-consuming design.

In addition, practice has shown that during the operation of refrigerated containers, the walls of which are made with a heat-insulating layer of polyurethane foam, which is typical for all of the above analogs, under the influence of static and dynamic loads experienced by these containers, the insulation material undergoes significant destruction, which negatively affects performance characteristics of such containers.

The technical problem solved by the utility model is to improve the operational properties of an insulated container, in particular its durability, while simplifying its manufacturing technology.

The technical result aimed at solving this problem consists in increasing the strength properties of an insulated container when exposed to loads of various nature, both static bending and fracture in the process of loading and unloading operations in seaports or warehouses during the operation of a loader, and dynamic to vibration during the transportation of a container by various vehicles on land or water, while without a significant increase in its weight.

In addition, the proposed design is simpler to manufacture and does not require expensive equipment used in the casting technology for manufacturing container panels.

The specified technical result is achieved in the utility model using the following set of features.

Also, as a prototype, the insulated container contains a heat-insulating body, including a supporting frame and side and end walls fixed on it, a roof and a floor.

Unlike the prototype, the side and end walls, as well as the roof of the container, are made of metal sheets located on the outer side of the body and interconnected, to which panels of extruded polystyrene foam are attached from the inside by means of glue, with sheets of metal fixed on their other side by means of glue, located from the inside of the case.

The side walls, roof and floor of the container can be provided with stiffening elements in the form of metal profiles fixed on the supporting frame and located between panels of extruded polystyrene foam.

Panels made of extruded polystyrene foam can be interlocked.

The panel made of extruded polystyrene foam has a thickness of 80-100 mm and a density of 30-40 kg/m ³ .

Sheets of metal located on the outer side of the body have a thickness of 1.5-2.0 mm, and sheets of metal located on the inside of the body have a thickness of 0.5-1.5 mm.

Sheets of metal located on the outside of the body may be made of steel, and sheets of metal located on the inside of the body may be made of stainless steel or aluminum.

The utility model is illustrated by drawings, where

in fig. 1 shows an isothermal container (side view);

in fig. 2 - section A-A in Fig.1;

in fig. 3 - section B-B in Fig.1;

in fig. 4 - view B in Fig.2 (enlarged);

in fig. 5 - section G-G in Fig.1;

in fig. 6 - view D in Fig.5 (enlarged).

The body of the insulated container can have different dimensions: 10, 20, 40 and 45 feet. The drawing (Fig. 1) shows the most commonly used heavy-duty container with a dimension of 40 feet. The container body consists of a supporting frame made of vertical 1 and horizontal 2 profile beams, to which fittings 3 are welded at the corners, as well as transverse beams 4 of the floor. On the supporting frame are fixed: the roof, side and end walls, as well as the floor of the isothermal container. The side walls 5 of the container body are made with a heat-insulating layer in the form of panels 6 (Fig. 3) made of extruded polystyrene foam with a density of 30-40 kg/m ³ .

Panels 6 on both sides are lined with metal sheets 7 and 8, made mainly of steel. For the outer side of the container body, sheet 7, about 1.5-2.0 mm thick, made of steel, incl. of stainless steel. For the inner side of the container body, sheet 8, about 0.5-1.5 mm thick, made of steel, incl. stainless or aluminium. In the version of sheet 8 made of steel, the inner wall of the container will be shiny, and in the version of aluminum, it will be white.

The side walls 5 of the container body are made as follows. On the formed frame, the outer part of the wall is fixed, consisting of metal (steel) sheets 7 welded together with a thickness of about 1.5-2.0 mm. Having previously placed sheet 8 of metal with a thickness of about 0.5-1.5 mm, a layer of polyurethane adhesive with a thickness of not more than 1 mm is applied with a spatula to its entire surface with a spatula. Then, a panel 6 of extruded polystyrene foam, 80-100 mm thick, is applied to this sheet and they are glued together using clamps. After that, a layer of polyurethane adhesive with a thickness of not more than 1 mm is similarly applied to the entire surface of the other side of the panel 6 and the panel 6 is connected to the inside of the sheet 7.

To increase the strength of the walls of the container body can be equipped with metal profiles 9.1 different, for example, L-shaped (Fig. 4). Profiles 9.1 are located with a given step along the entire length of the side wall and are welded to the upper and lower horizontal beams 2 of the supporting frame.

It is also possible to carry out the container, in which these profiles are absent, and the end sides of the panels 6 are connected to each other “in a lock” 9.2, as shown in Fig. 6.

On the transverse beams 4 of the supporting frame of the floor, a metal sheet 10 with a thickness of 1.5-2.0 mm is installed (Fig. 3). Panels 6 made of extruded polystyrene foam up to 100 mm thick with a density of 30-40 kg/m ³ are fixed on it with glue. Between the panels 6 on the transverse beams 4 there are sheets of plywood 11 with a width of about 50 mm and a thickness of about 16 mm, depending on the width of the panels 6 to create cold bridges and fasten aluminum profile elements 12 (Fig. 2.3), for example, having a T-shaped shape, located with a given step along the entire length of the floor and welded to the two lower horizontal beams 2 of the supporting frame. The presence of these profile elements 12 allows the container body to easily withstand the loads on the container with the goods, which regularly occur when interacting with the loader.

The roof 13 of the container (Fig. 3) is made of three-layer panels, similar in design to the panels of the side walls 5 of the container body. To increase the strength, it, like the side walls, can be equipped with metal profiles, for example, U-shaped.

The door for loading and unloading the contents of the container is located on one end side of the container body and is made of the same three-layer panels as the walls and ceiling of the container. Both doors 14 are hinged at an angle of 270°, which provides convenient loading and unloading of products (Fig. 2). Sealing rubber is installed along the edges of the door leaves.

The proposed isothermal container is able to maintain the specified climatic parameters inside it. This is achieved thanks to the climatic installation 15 (Fig. 2), which is located on the rear end wall 16 of the container. It generates warm or cold air entering the container cavity. Most often, there are installations that create and maintain an atmosphere in the container in the range from -25°С to +25°С, but there are also installations that can create and maintain a lower temperature threshold of -35°С.

Claims (6)

1. An isothermal container containing a heat-insulating housing, including a supporting frame and side and end walls fixed on it, a roof and a floor, characterized in that the side and end walls and the roof are made of metal sheets located on the outer side of the housing and interconnected, to to which panels of extruded polystyrene foam are attached from the inside by means of glue, with metal sheets fixed on their other side by means of glue, located on the inside of the case. 2. The container according to claim 1, characterized in that the side walls, roof and floor are provided with stiffening elements in the form of metal profiles fixed on a supporting frame and located between extruded polystyrene foam panels. 3. The container according to claim 1, characterized in that the panels of extruded polystyrene foam are interconnected in a lock. 4. Container according to claim. 1, characterized in that the panel of extruded polystyrene foam has a thickness of 80-100 mm and a density of 30-40 kg/m ³ . 5. The container according to claim 1, characterized in that the metal sheets located on the outer side of the body have a thickness of 1.5-2.0 mm, and the metal sheets located on the inside of the body have a thickness of 0.5-1, 5 mm. 6. The container according to claim 1, characterized in that the metal sheets located on the outer side of the body are made of steel, and the metal sheets located on the inside of the body are made of stainless steel or aluminum.

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