Contents
The design of the drying cabinet can vary radically depending on the specifics of use. From drying ski suits to heat treating flammable solvents, the layman may not be aware of the extent of the use of such a device.
Purpose of the electric dryer
In the hotel, tourism business, schools, kindergartens and hospitals, such devices are used to quickly dry a large amount of clothes, bed linen, tablecloths. This saves space when hanging, reduces the waiting time before ironing.
Drying units of various sizes and capacities are also used in production and construction of facilities. For example, the active parts of transformers are necessarily dried in vacuum cabinets. To facilitate the transportation of products that require drying, such cabinets are equipped in special pits. In a welded, well-insulated box, three groups of pumps reduce the internal pressure in stages, heating elements heat the air to the set temperatures.
The electric drying cabinet occupies a special place in laboratories, research institutes, and the chemical industry. With its help, you can heat up, sterilize the instrument, carry out heat treatment of any chemical compounds.
Types and arrangement of drying cabinets
According to their device, drying units are divided into:
- vacuum;
- thermo-convection;
- infrared radiation.
How the drying cabinet for textiles and tools works
The principle of operation of the thermoconvection device consists in heating the air with the help of heating elements and its ventilation. They are located either at the bottom, or on the ceiling or rear wall of the structure.
On the control panel, you can select the drying time, air temperature. For delicate textile materials, it is enough to turn off the heating, dry exclusively by ventilation.
Such a unit is intended for clothes, shoes, tools, inventory, inside the metal box there are shelves and sections with hangers. The volume of loading depends on the chosen model, it can be vertical and horizontal. Metal cabinet box, perforated shelves and sections.
Drying the fabric at high temperatures is not recommended, it can quickly become unusable. The thermostat regulates the temperature inside the box: turns on the heating as soon as the temperature drops below the set one.
It will be correct to organize the hood with the help of a corrugated pipe, in the absence of such an opportunity, to ventilate the room.
Scheme of work:
Laboratory Vacuum Oven
In addition to heating elements, the design also includes pumps to achieve a vacuum. In modern models, heating occurs due to shelves that have built-in heating elements.
The device of laboratory equipment is more complicated than a wardrobe: due to the presence of pressure indicators, silicone insulators, purge valves and other auxiliary devices. The choice of model depends on the industry of use and requires careful information before purchase.
There are non-vacuum type laboratory devices. The principle of operation is the same as for textiles, with a heating temperature of up to 300–500 ° C degrees. They can safely be called sterilizers.
Infrared dryer
Used for drying vegetables, fruits, confectionery. Under each shelf there is an infrared heating element, as well as several fans for forced convection. The installations are made of stainless steel, they have several programs for different types of products, they are indispensable in production conditions.
The drying speed is five times faster than conventional convection machines, and is quite economical in terms of energy consumption.
accident prevention
- The rated current consumption of the device must not exceed the capacity of the network.
- Be sure to ground before use.
- Do not block ventilation grills.
- Do not install directly next to a power outlet.
- It is forbidden to repair the unit yourself.
- Do not turn on and do not use outdoors, at temperatures below 5 ° C degrees.
- Place on a flat surface, do not use on clothing soaked in fuels and lubricants.
Conclusion
Drying plants have a lot of modifications and are used in many industries: from the food and chemical industries to the service sector. Dimensions, power, type of product are selected depending on the purpose, the price will change from these indicators.
Domestic manufacturers are not inferior in product quality, but the price of the product is much lower than foreign models.