Household and industrial heaters operating on the principle of inductive heating appeared relatively recently, but quickly became serious competitors to older modifications with traditional heating elements. With similar heating output, they consume less energy and are able to heat up the heating circuit faster; in addition, they can be used together with low-quality coolant. Using electrical installation skills, you can make an induction heating boiler with your own hands, and drawings, diagrams and installation descriptions will help you assemble the heater from available consumables.
Installation of an induction heating boiler
The “inductor” consists of a core, a toroidal winding, a high-frequency generator and auxiliary elements. The first one acts as a heat exchanger: when heated, it gives off heat to water or other liquid flowing through the heater. The power wire is located around the core in such a way that eddy currents arising in the metal cause it to heat up. The element is made from a large-section copper conductor.
The winding is connected to a high-frequency pulse generator, through which a current of a given frequency is obtained. The process is controlled by an electronic unit that monitors the degree of heating and can, in the event of an emergency, shut down the device. The heater is covered with heat-insulating material and an external decorative shell. The housing protects the operator from burns and electrical injuries due to possible damage to the insulation.
Introduction
A special feature of such stoves is their ability to heat only the bottom of the cookware.
In conventional electric stoves, the burner that is turned on initially heats up.
Before choosing such equipment, it is important to familiarize yourself with the advantages of operation, as well as take into account some of the design disadvantages of an induction cooker.
The main advantages are presented:
- faster heating and cooking process, which takes several times less time than when using a traditional electric stove;
- no burning of food that may fall on the hob during cooking, which is due to the low temperature of the burner;
- reduction in electrical energy consumption due to very rapid heating of the kitchen utensils used;
- ease of use due to the ability to adjust the cooking mode on different stoves.
The advantages also include safety of operation, which is especially important for families with small children, pensioners or people with disabilities.
Induction cooker in the kitchen
Operating disadvantages in such modern equipment are also present and, despite the fact that they are minimal, they should be taken into account when choosing a model:
- turning on induction equipment at full power can create an increased load on the electrical network;
- for cooking on this type of stove, only special kitchen utensils with a ferromagnetic bottom should be used;
- Some models are characterized by the presence of a single high-frequency generator, which adversely affects the power level when all burners are turned on simultaneously;
- The hob surface is fragile, so during the entire period of operation it is necessary to exercise some caution.
Types of boilers
Manufacturers produce 2 types of induction heating units. The first received the SAV marking. The inductor of these devices represents the primary winding. It accepts current with a frequency of 50 Hz. A system of short-circuited pipes filled with coolant represents a secondary winding combined with a heat exchanger. The latter heats up when exposed to eddy currents. Due to limited frequencies, heaters of this type are not made more powerful than 50 kW. They are connected to a single- and three-phase network.
The second type of electric boilers is VIN. Their heat exchanger is made of a ferromagnetic alloy, which is capable of excellent magnetization reversal, causing strong heating. In addition, the current entering the winding is high frequency. This achieves greater efficiency and economy of the heater. Boilers of this type are manufactured with a power of up to 500 kW.
Important!
When installing an “induction”, take into account that it can interfere with the operation of various household appliances. As a rule, the electric boiler is installed several meters away from them.
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Disadvantages include the fact that users need to use certain cookware that is made from ferromagnetic materials. The body is made in black.
A heat gun is good because it quickly distributes heat. If there is grease on the surface, the system may simply not recognize human touch.
It has four burners and touch controls. It is important to remember that induction cookers are capable of creating fairly high electromagnetic radiation and can have a negative effect on household appliances installed at a short distance.
Using a multimeter you need to check the fuse box, cable and the contacts themselves.
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