Isothermal booth is an integral parttransport during transportation of various perishable goods, frozen semi-finished products, goods from the pharmaceutical industry on trucks or light-duty vehicles. Also in these vans transporting floral products.
The design of the vans
Modern models that are equipped withmodern trucks have rather thick walls. They perfectly maintain the desired temperature. A thick galvanized steel profile is used as the inner lining. This profile is quite rigid and of high quality, it does not oxidize and it withstands chemical exposure perfectly. However, in addition to the profile, plastic or stainless steel can be used as a plating.
Frameless Van
В странах Европы изотермическая будка made by special, frameless technology. A special, pre-bent profile is used. It has a lighter weight in comparison with the usual profile by more than 30%. Although the weight of the van and quite light, but all the connections are strong enough. As fasteners used galvanized metal. As a fastening base, solid metal runners are used, which are fastened to the vehicle frame along the entire length.
Insulated booth sandwich panels
These vans are mostly used together.with additional refrigeration equipment. Here, polyurethane foam is used as insulating material. It is pumped under pressure between the inner and outer panels. This allows you to repeatedly improve the characteristics of the booth, and also provides high strength and reliability of the whole structure.
Using special formulas you can calculatebody wall thickness so that the temperature is maintained throughout the trip. Especially such preservation is important for the transport of drugs and perishable food. Here you need to keep it close to zero degrees. The isothermal booth is a thermos which reliably keeps temperature.
Produce such a body under the popular brands of truck chassis. These are Mercedes, Gazelle, Kamaz, MAZ, GAZ and other cars. But most of all these vans create under the "Gazelle".
Production stages
Production of insulated booths, whichcould well maintain the temperature produced at various enterprises using international standards and European technologies. Also use high-quality insulating materials.
To make a good booth that canConfidently keep the set temperature, you first need to check the sandwich panels for quality. This is done in production using ultrasound technology. So it turns out to find defects and voids in this material. On production in the factory still perform multiple calculations in laboratories.
Floor van
In addition to wall cladding, special attention is paid to the floor.bodywork. Often it must be wooden. Further, according to the technology, the floor will be covered with special additional material, and then coated with a galvanized steel sheet. The sheet will fit perfectly to the floor and thus protect it from water and other negative influences.
Roof
A galvanized sheet is also great for building a roof. It is securely riveted to the walls of the body, so that there is not a single hole.
Doorway
In order to seal thispart of the van, use a special rubber seal made by a special formula. This rubber is a polyurethane rubber. The material perfectly retains its flexibility characteristics and is not afraid of sudden changes in temperature.
To finally isolate the van, use a special tape sealant and silicone. This way the isothermal booth is sealed, it is installed on the "Gazelle".
Van do it yourself
Without owning European technologies and materials, you can also make something similar. Let's try to warm the car body.
Today there are many companies that offer insulation services. The materials offered extruded polystyrene foam plates. It is perfect for interior plating.
Since this material has a straight edge, thisallows you to ensure maximum tight fit sheets to each other in the process of laying. The plates are 2500 mm long and 600 mm wide. The process of insulation will reduce the temperature leakage to a minimum, and in the future such an isothermal booth, assembled with its own hands, can work as a refrigerator.
Selection of insulation materials
In order to work with the maximum efficiency, you should carefully select the appropriate insulation. You can try the product from the company "Stirofom".
For industrial goods that have averagetemperature indicators, inside you can apply IBF 250A. The average thickness is to pick no more than 4 cm. If the van is made of solid metal, then there are more serious requirements. Here you need a thicker material. The thickness must be at least 50 mm.
Self-made van
Our country is a country of unique opportunities.Our people do not use European practices and do not ask for help and advice from specialists. It is worth considering such developments in order to understand whether it is possible to make this product with one's own hands or not.
Often, to make an insulated booth,used foam. It was fixed completely by hand, and then trimmed with a galvanized sheet. The design also provides special pipes. With these pipes, the cold quickly leaves the body of the van.
The owners are very unhappy with this fact, because even with a constantly working refrigerator there is no stable cold air in the van.
Disadvantages of such a system
It is difficult to keep the temperature lower than -10degrees Condensate is constantly formed in the bodywork, which leads to the destruction of metal surfaces. It is necessary to constantly repair the insulated booths and paint them from the inside. Door opening, made of black metal alloys, will not last long. It would be better to use stainless steel.
Such a booth can only lead to damaged nerves, weight, wasted money.
As needed
It should be done as they do in Europe or in our country, but according to their technologies. You can look at the isothermal booths (photos can be seen below) to see the difference.
For greater efficiency, plastic is used insheets, and the space between the sheets is filled with liquid polyurethane foam. In our country, it is much cheaper and easier to buy a finished van, which is already insulated with sandwich panels.
However, everything is not easy.If you order insulation directly from a car dealer - this is one thing. If the process of insulation will take a private manufacturer who is not affiliated with cars - is quite another. It can be quite difficult to determine if everything is done correctly.
Two options
As already mentioned, it is possible to warm the van whenhelp of a special plate. Since the frame is rather dense, and the body dimensions of the same “Gazelle” are standard, it is not necessary to cut the insulation. To prevent the so-called cold bridges, the seams between the plates should be filled with sealant. Laminated plywood, various types of plastic or stainless steel can be used as a material for the inner lining. The selection and use of them largely depend on what is to be carried in this homemade isothermal van.
Work on the second option is much easier.But the prices of materials are slightly higher. So, polyurethane foam will be used as a thermal insulation element. You can buy it in any stores. Inside the van should be evenly covered with this material. That's all. On top of the trim fit anything.
That's all that is needed for the manufacture of an isothermal van (or thermobox).
