Who knows what the principle of heat preservation of a kettle is

Now every family will have more than one electric kettle, because the electric kettle is environmentally friendly and fast. Do you know some of the principles of electric kettles? So what exactly does an electric kettle work on? What is the principle of heat preservation?

The structure and working principle of the electric kettle leaky sail: After the electric kettle is connected to the power supply and heated, the water temperature gradually rises to 100 degrees, the water begins to boil, and the steam impacts the bimetal sheet on the steam switch, due to the effect of thermal expansion and cold contraction, the bimetal sheet expands and deforms, and the top switch contact disconnects the power supply. If the steam switch fails, the water in the pot will continue to boil until the water is boiled dry, and the temperature of the heating element rises sharply.

Therefore, the safety protection device of the electric kettle is designed to be very scientific and reliable. This is the principle of triple safety protection of electric kettles.

Electric kettles with thermal insulation function mostly have two heating elements, and one thermal insulation heating element is controlled separately through the thermal insulation switch, which allows users to control and choose whether to keep warm. The insulation power is generally below 50W, and the consumption will not exceed the kilowatt-hour in one hour.

Key components: The key component of the electric kettle is the thermostat, the quality of the thermostat and the use of Shouchun Sokai life determines the quality and service life of the kettle.

Thermostats are divided into: simple thermostats, simple + sudden jump thermostats, waterproof, anti-dry burning thermostats. It is recommended that consumers buy waterproof and dry-burning thermostat electric kettles.

Other components: In addition to the key thermostat, the composition of an electric kettle must contain these basic components: the kettle button, the top lid of the kettle, the power switch, the handle, the power indicator, the heating floor, etc.

Thermal insulation principle: Most kettles with thermal insulation function have two heating tubes, and one thermal insulation heating element is controlled separately through the thermal insulation switch, which allows the user to control and choose whether to keep warm. The insulation power is generally below 50W, and the consumption will not exceed the kilowatt-hour in one hour.

The above is all the content today, including the working principle of the electric kettle and the principle of heat preservation, I hope that through this understanding can solve everyone's doubts.

A standard thermos bottle is generally 2 liters (i.e. 2000 ml).

The hot water bottle is divided into two types, the small water bottle is about two liters, and the large water bottle is about four liters. The cork of the thermos is made of cork, which is not easy to conduct heat, which prevents conduction as much as possible.

There is a vacuum in the middle of the kettle to try to prevent the occurrence of air convection; There is also a silver-white plating on the bottle of the thermos, which can reflect the heat into the bottle without radiating out.

Insulation principle:

The function of the thermos is to maintain the temperature of the hot water in the bottle, cut off the heat exchange between the inside of the bottle and the outside of the bottle, so that the "heat" in the bottle can not get out, and the "cold" outside the bottle can not come in. If you put a popsicle in a thermos, the "heat" on the outside will not easily escape into the bottle, and the popsicle will not melt easily.

Therefore, it is scientific to call a thermos flask a thermos flask, because it can keep both "hot" and "cold" in spring. The ability of a thermos to keep warm is determined by the structural characteristics of the thermos tank. It turned out that the thermos bile consisted of two thin layers of glass shell, between which air was extracted and a thin layer of silver was plated on one side of the bottle.

The thermos bile has a much thinner mouth than its "body" part, which can be corked. It is this structure that makes the thermos a thermos that is "hot in the heart and cold on the outside".

After the electric kettle entered the market, it was popular with more and more customers. So in the face of this electric kettle that has quietly stepped into every household, how much do we know about its working principle? Some electric kettles also have a thermal insulation function, do you know its thermal insulation principle?

In the face of this electric kettle that has quietly stepped into every household, let's listen to my explanation of the working principle of the electric kettle.

There are many types of electric kettles, which can be divided into automatic kettles with temperature controllers and ordinary kettles without temperature controllers according to their different performance. According to the different forms and installation positions of the heaters, they can be divided into electric kettles with direct immersion of electric heating pipes and bottom-mounted electric kettles with mica sheet electric heaters.

The electric kettle is mainly composed of the large body of the kettle, the spout, the lid, the heater and the handle, as shown in the figure. The body, spout, and lid are generally made of aluminum stretching, and the handle is made of heat-resistant plastic. The electric heater is a steel or stainless steel pipe bent into a round shape with an electroplated surface.

The tube is equipped with a spiral heating wire, and the heating wire and the metal pipe are filled with magnesium oxide powder with good thermal conductivity and insulation properties.

The electric heater is installed at the bottom of the pot, and the two lead wires pass through the wall of the pot and exit the pot outside, and are fastened with nuts. A heat-resistant rubber gasket is added between the electric heater and the wall of the pot to make the pot sealed without leakage. The structure of the automatic electric kettle is similar to that of the ordinary electric kettle, except that there is an automatic temperature control device, which can automatically trip and cut off the power supply after the water is boiled.

The above is how the electric kettle works. However, some electric kettles have a heat preservation function, so what is the principle of heat preservation? I'll explain it to you.

Kettles with thermal insulation function, most of them have two skins and a heating pipe, and there is a thermal insulation heating element that is controlled separately by the thermal insulation switch, which allows the user to control and choose whether to continue to keep warm, so that after reaching a certain period of time, the water temperature is still kept at a suitable temperature for tea, instant noodles, etc.

Well, that's all for the working principle of the electric kettle and the principle of the difference in the hall of insulation.

Hee-hee, do you feel like you're in a posture again?