The history of the electric heater begins in 1859, when the American Simpson patented a method for converting electrical energy into heat. In the first half of the last century, the General Electric Company began mass production of a device in which the heating element was sealed in a tube with insulating material. Since then, the scope of application of electric heating devices has been constantly expanding. They gradually appeared in everyday life, and found wide application in production. The design of the device has also undergone significant changes. Only the principle of converting electrical energy into heat remained untouched by time.
Now we cannot imagine our life without many household appliances. The heating element is used in household electric heaters, electric irons, dishwashers, etc. It is also used in the manufacture of underfloor heating; special heat cables are used here. The use of thermal cables in production, as heating of pipelines or electrical machines, has become widespread. Smallthe heating element can also be found in control cabinets, its purpose is to maintain a constant temperature regime in the winter time of the day. This is necessary so that when the ambient temperature changes, condensation does not occur, which can negatively
affect the operation of all process control equipment. Modern electrical machines are also equipped with special anti-condensation windings, the direct purpose of which is to keep the temperature of the motor windings above the ambient temperature to prevent condensation. These windings are the heating element, which prolongs the life of the electric machine.
Recently, heaters with a ceramic heating element as a working element are becoming more and more widespread. Its design features can significantly improve operational parameters
classic electric heaters. The working body of such heaters is ceramics, which is heated by metal plates. The advantages of this design are obvious, in contrast to coil electric heaters, ceramics are heated much faster. Due to the fact that ceramics practically does not collapse when heated, the durability of the device increases significantly. It is also beneficial to use ceramic heaters in terms of fire safety.
One moreAn example of the use of heating elements in everyday life is a heating element for a washing machine. You probably paid attention to the fact that only cold water is required to connect the washing machine. The temperature regime during washing is provided by automatics, and special electric heating elements are used as heating elements.
