Comparison of electromagnetic heating stove and resistance heating stove
Electromagnetic heating stove:
1. Electromagnetic induction heating, separation of water and electricity in the true sense, and insulation of circuits and waterways.
2. Low-voltage soft start can reduce the hazards of current surge and prevent damage to equipment due to voltage fluctuations, ensuring safety.
3. The variable frequency power output part can automatically adjust the current according to the voltage fluctuation to ensure constant power, and the current will not increase due to the increase of voltage, which will cause insufficient electrical load and damage.
Resistance heating stove:
1. Resistive heating, regardless of whether the resistance material is inside or outside, is conducted through the heat-conducting medium. It is not a true separation of water and electricity. There is a hidden danger of leakage of the medium due to corrosion or breakdown.
2. The relay directly supplies power to the resistance bar, and the impact current is large, which is prone to over-current impact and voltage fluctuation, which is also harmful to other electrical appliances. Structural design Electromagnetic heating stove: The structure of the whole machine is separated from the water circuit and the circuit, and the structure is reasonable and safe. High-resistance heating stove: The whole machine is not separated from water and electricity, and the safety hazard is high. To the water tank, the water tank itself heats up, reducing the process of conduction through the medium, with less heat loss, high thermal efficiency, that is, heating is instant, no heat storage container is needed, the instant thermal efficiency can be as high as 98%, and the energy saving is 30% compared with the resistance type. the above.
Resistance heating stove:
1. Resistance heating, the heat is transferred to the water tank through the heat-conducting medium, and the heat loss is large
2. Local heating, easy to produce scale, affecting heat conduction 3. Some materials are seriously attenuated, resulting in low thermal efficiency. Service life Electromagnetic heating stove: industrial-grade electromagnetic, high temperature resistant wire, resistance heating stove used for more than 15 years: resistance wire is easy to age and has a short lifespan , Usually 3 to 5 years of silent electromagnetic heating stove: The heating power frequency is 20000Hz, which exceeds the normal listening frequency of the human body. It not only improves the thermal efficiency, but also silences the environment. Resistance heating stove: the power frequency power supply has "buzzing" power frequency noise, resistance-type water heating, when the surface water temperature is high, there are bubbles to produce the sound of boiling water. Maintenance of electromagnetic heating stove: electromagnetic induction heating, when working, the core component of heating is a fixed magnetic field, and the water is magnetized after passing through. The magnetized water part structure, and the system is maintenance-free. Resistance heating stove: The resistance wire is usually replaced every 3 to 5 years, and because of its scale, it must be regularly descaled.
