RU222845U1 - CONTAINER FOR CONTAINING FOOD IN THE ZONE OF RADIOACTIVE CONTAMINATION - Google Patents

Abstract

The utility model relates to devices intended for transportation and storage of food products and raw materials in a radioactive contamination zone. The technical task of the utility model is to ensure the protection of food products during their storage and transportation under conditions of the use of nuclear weapons or accidents at nuclear power plants. The technical problem was solved due to the fact that a container for containing food in a radioactive contamination zone containing a metal door consisting of layers of 200 micron polyethylene 75 mm thick, rigidly fixed with a stainless steel plate 5 mm thick and a niche 175 mm wide between the plate and the technological wall chamber filled with water, movably fixed to the body, the frame of which is made of a metal profile, and the outer and inner walls are made of sheet steel 15 mm thick, coated with roofing paint, while the outer and inner walls are interconnected by a fastening bracket, motionless to the inner wall of the frame there is a fixed cladding made of aluminum sheet 5 mm thick with insulation rigidly fixed to it, made of 200 micron polyethylene, the thickness of which is 100 mm, a filler neck is mounted on the outside of the frame in the upper part, a pump, a box and a gasoline generator are fixedly fixed on the end wall, a drain tube is installed in the lower part, while the inner and outer walls form a niche 150 mm wide, filled with water. 2 ill.

Description

The utility model relates to devices intended for the transportation and storage of food products and raw materials in a radioactive contamination zone.

A known container (20-foot containers [Electronic source] https://www.contlease.ru/catalog/suhogruznye_morskie_kontejnery/20_futovye/) [1] is intended for the transportation and storage of various cargoes and food products. The container consists of a rigid steel frame covered with profiled metal sheets with anti-corrosion treatment. The floor is covered with boards, waterproof fiberboard or plywood.

The prototype has a significant drawback, expressed in the fact that it does not provide complete protection of food from radioactive irradiation under conditions of its delivery and storage in a contaminated zone.

The technical task of the utility model is to ensure the protection of food products during their storage and transportation under conditions of the use of nuclear weapons or accidents at nuclear power plants.

The technical problem is solved due to the fact that the container for containing food in a radioactive contamination zone contains a metal door consisting of layers of 200 micron polyethylene, 75 mm thick, rigidly fixed with a stainless steel plate, 5 mm thick, and a niche 175 mm wide between the plate and the wall of a technological chamber filled with water, movably fixed to the body, the frame of which is made of a metal profile, and the outer and inner walls are made of sheet steel 15 mm thick, coated with roofing paint, while the outer and inner walls are interconnected by a fastening bracket, to the inner wall frame, a cladding made of aluminum sheet 5 mm thick is fixedly fixed to it with insulation made of 200 micron polyethylene, the thickness of which is 100 mm, rigidly fixed to it, a filler neck is mounted on the outside of the frame in the upper part, a pump, a box and a gasoline generator are fixedly fixed on the end wall , a drain tube is installed in the lower part, while the inner and outer walls form a niche 150 mm wide, filled with water.

The essence of the technical solution is that by forming sandwich layers of container walls from water and polyethylene, the maximum reduction in the penetrating power of electromagnetic radiation and its impact on food placed inside it during delivery or storage in a radiation contamination zone is ensured.

In fig. Figure 1 shows the appearance of a container for containing food in a radioactive contamination zone: pos. 1 - body; pos. 2 - hose; pos. 3 - box; pos. 4 - technological chamber; pos. 5 - pump; pos. 6 - filler neck; pos. 7 - overlay; pos. 8 - door; pos. 9 - mounting bracket; pos. 10 - niche; pos. 11 - drain plug; pos. 12 - gasoline generator.

In fig. Figure 2 shows the wall of the container (in section) where it is indicated: pos. 13 - insulation.

The principle of forming the composition and thickness of the container walls is based on the attenuation coefficient of gamma radiation and neutron irradiation of the structural material.

A container for containing food in a radioactive contamination zone consists of a body (1) (optionally, a frame made of a metal profile, external and internal walls made of sheet steel, 15 mm thick, coated with roofing paint (“Novbytkhim” Roofing paint on galvanized iron [Electronic resource ] https://kraskivmoskve.ru/product/novbythim-krovelnaya-kraska-po-otsinkovannomu-zhelezu [2]), in the upper part of which a filler neck (6) is mounted, and in the lower side there is a drain tube (not shown in the figure) ), on which the plug (11) is fixed (optionally, made of steel). The inner and outer walls form a niche (10) 150 mm and are rigidly connected to each other through a fastening bracket (9) (optionally, several, Z-shaped metal profile form) To the inner wall of the frame (1), insulation (13) (optionally, polyethylene 200 microns, thickness 100 mm) is fixedly fixed with a lining (optionally, aluminum sheet, 5 mm thick) forming the wall of the technological chamber (4). 8) (optionally, metal), carefully adjusted to the body (1), it consists of two layers: insulation (13) (optionally, polyethylene 200 microns, 75 mm thick) rigidly fixed with a pad (7) (optionally, stainless steel steel, 5 mm thick); The 175 mm wide gap between the cover (7) and the wall of the process chamber is filled with water. On the outer side of the end wall of the housing (1) a pump (5) (optionally, a drainage pump Vikhr DN-750), a box (3) (optionally, made of iron) and a gasoline generator (12) (optionally, a gasoline generator) are fixedly fixed. generator Kraton GG-1200). Inside the box (3) there is a hose (2) (optionally, transparent, made of soft PVC, 40 m long).

A container for containing food in a radioactive contamination zone works as follows. Installs on a flat surface or base car chassis. The gasoline generator (12) is brought into working position, supplies electricity to the pump (5), which supplies water to the niche (10) from a water supply source or reservoir through a hose (2) and a filler neck (6). Having filled the niche (10), the filler neck (10) is fixed with a lid. Food or other materials are placed in the technological chamber (4), the door is tightly closed.

As a result of experimental studies, a choice was made of a method for storing food in conditions of radiation contamination of the area based on the available material resources and time for equipping storage areas, taking into account the attenuation coefficient of the structural materials used.

The thickness of the protective layer from the available material for warehouse equipment is calculated according to:

(1)

Where - material thickness, mm;

- half-attenuation layer, mm.

When constructing a warehouse from several layers of materials, the thickness of the protective layer was calculated using the formula:

(2),

provided, calculated

Knowing the thickness of the material and the half-attenuation layer (Table 1), structural materials were selected for inclusion in the container for containing food under conditions of radiation contamination (when exposed to gamma radiation and neutrons).

Thus, the proposed container for containing food in a radioactive contamination zone is distinguished by its novelty and new useful properties that ensure the protection of food during its storage and transportation under conditions of the use of nuclear weapons or accidents at nuclear power plants. The technical solution can be used in the interests of organizing catering and medical support for agglomerations in special conditions.

Literature

1. Containers 20 feet [Electronic source] https://www.contlease.ru/catalog/suhogruznye_morskie_kontejnery/20_futovye/.

2. Novbythim roofing paint for galvanized iron [Electronic resource] https://kraskivmoskve.ru/product/novbythim-krovelnaya-kraska-po-otsinkovannomu-zhelezu.

Claims (1)

A container for containing food in a radioactive contamination zone, containing a metal door consisting of layers of 200 micron polyethylene, 75 mm thick, rigidly fixed with a 5 mm thick stainless steel plate, rigidly fixed with a 5 mm thick stainless steel plate and a 175 mm wide niche between the plate and the wall of a technological chamber filled with water, movably fixed to the body, the frame of which is made of a metal profile, and the outer and inner walls are made of sheet steel 15 mm thick, coated with roofing paint, while the outer and inner walls are interconnected by a fastening bracket, to the inner wall a cladding made of aluminum sheet 5 mm thick is fixedly fixed with insulation made of 200 micron polyethylene, the thickness of which is 100 mm, rigidly fixed to it, a filler neck is mounted on the outer side of the frame in the upper part, a drain pipe is installed in the lower part, while the outer and the inner walls form a niche 150 mm wide filled with water.