When it comes to electric water heaters, I believe that many families will almost use this kind of appliances. The electric water heater is more convenient to use, and it can also heat up the water quickly in a short period of time, and can also play a certain role in heat preservation, which greatly facilitates and reduces the need for waiting for hot water to heat up when bathing in winter It’s time. So many friends want to know what is the working principle of the electric water heater?
In fact, many friends are more interested in the working principle of electric water heaters. In fact, electric water heaters mainly use the temperature controller to heat the water quickly in a short time. will lower etc. So what is the working principle of the electric water heater?
Many people have a curious heart. They are always interested in things that they think are very novel. With the increasing popularity of electric water heaters in our daily life, some friends are eager to know the details of electric water heaters. Things worked out and tried to make it myself.
The working principle of electric water heater
The electric water heater is heated or not heated through the on and off of the thermostat. The popular concept of heat preservation is short-term heating. When heating, the rated power of the water heater is still used. After the circuit is connected, if the water temperature is lower than 50°C (the critical temperature set by most brands), the thermostat will be automatically turned on, the water heater will start heating, and the water temperature will reach the preset temperature of the water heater (75°C to 85°C for most brands) ), the thermostat is disconnected and the water heater stops heating.
The so-called heat preservation is completed entirely by the insulation layer of the water heater. As the water temperature continues to drop, until it is lower than 50°C, the water heater starts to heat again. This cycle goes on and on, realizing the so-called heat preservation. When the lamp is warmed up, the water heater does not consume electricity, which is close to the theoretical zero power and zero electricity consumption. When heating, the water heater uses the rated power. To understand the average power consumption of the water heater when it is kept warm, just look at the national standards. The approximate value is that even without a drop of hot water, the power consumption of the water heater just to “keep warm” is about 2 degrees per 24 hours.
Accurate use of electric water heater facilities.
1. When using an electric water heater, turn on the power, and the indicator light is on, indicating that electric heating is in progress. When the water temperature reaches the set value, the indicator light is off, indicating that the power is cut off. In this way, when the indicator light is on and off, it indicates that the automatic heat preservation is in progress.
2. The electric water heater (water storage type) should be filled with water first, and then heated by electricity, and can be used after preheating. If the pressure of the water source drops or the water stops suddenly, it is best to turn off the power.
3. Electric water heaters are equipped with a faucet and a backflow device. Usually, “blue” is used to indicate cold water, and “red” is used to indicate hot water. When in use, unscrew the “red” faucet, and hot water will flow out. If the water temperature is too high at this time, you can unscrew the “blue” faucet at the same time and adjust the water output to obtain hot water at a suitable temperature.
4. On the temperature regulator of the electric water heater, there are water temperature marking scales, such as “I”, “Ⅱ”, “Ⅲ” or English and Arabic numerals to indicate the adjustment position of low, medium and high water temperature, turn the temperature adjustment knob Aim at a certain mark, and the water temperature of the water heater will remain at the temperature set by the file indication. When in use, let the water spill out to test the actual water temperature before you stop showering to prevent the water temperature from being too high and scalding the skin.
5. When filling the water, the water outlet must be opened, and the air in the inner tank can be completely drained before checking whether the water is full.
6. After exhaustion, the power must be cut off first.
7. When used as a closed device, the water inlet valve must be open during the heating period.
8. When the valve is just opened, do not direct the water outlet to the human body.
The above has introduced the working principle of the electric water heater, I believe everyone is already familiar with it. In fact, when using an electric water heater, you must master the correct method. If you encounter a sudden water stop, it is best to turn off the power in real time. In addition, if the water temperature is overheated during bathing, you should adjust the temperature in real time to avoid scalding the skin. People have to remember.
