What is the electric heating tube, the operating principle and effect of the electric heating tube, the electric heating tube is a kind of electric heating object, generally our common electric heating tube is composed of metal tube spiral resistance wire and crystalline magnesium oxide powder. The working principle of the electric heating tube is to heat up through the alloy heating wire inside, fill the tube and compress the very tight magnesium oxide to conduct heat to the electric heating tube body, and then heat the water. There are many heating environments for electric heating tubes, let's take a look at them together.
Operating principle of various types of electric heating pipes:
1. The arc heating method can also be divided into two types, namely direct heating and direct heating. 2. The electric heating plate of arc heating uses wire diameter resistance wire, which can produce high temperature effect to heat the object that needs to be heated. 3. Infrared heating is the use of the principle of electromagnetic radiation heat transfer to directly heat the effect of heating the object, and then prevent the energy loss caused by heating the medium. 4. The first thing to use in induction heating is that the induced current will occur in the alternating electromagnetic field, which is usually what we call eddy currents, which will constitute a thermal effect to promote the heat of the conductor. 5. The electric heating tube heated by resistance is first of all the Joule effect generated by the current, which converts the electric energy into heat energy, which has achieved the intention of heating. The heating plate using resistance heating is divided into two types: direct resistance heating and direct resistance heating.
The effect of electric heating pipe: The effect of electric heating pipe is to heat objects or gases, and the effect of electric heating pipe can be used for dry burning and liquid heating.
"Dry burning". When dry burning, if there is a fan circulation, the power of our heating tube is generally set as: the ratio of the total length of the heating zone of the heating tube electric heating tube (unit: meters) to the power of the heating tube is 1:1.5, that is, the heating tube with a length of one meter, in the case of dry burning and fan circulation, the power Z is suitable to achieve 1500W; When dry burning, if there is no fan circulation, the power of our heating tube is generally set as: the ratio of the total length of the heating zone of the single-head heating tube electric heating tube (unit: meters) to the power of the heating tube is 1:1 connection, that is, a heating tube with a length of one meter, in the case of dry burning and no fan circulation, the power Z is suitable to achieve 1000W.
"Heating liquid". When heating water or corrosive liquid, the power of the quartz heating tube is set as: under normal circumstances, the total length of the heating zone of the electric heating tube (unit: meters) and the power of the electric heating tube ratio is 1:2 link, that is, one meter length of the electric heating tube, the power is suitable to do 2000W, of course, in the case of boiling water, Z can do 4000W, but the lower the power per meter, the longer the life; When heating the oil, the power of the electric heating tube is set as: the total length of the heating zone of the electric heating tube (unit: meters) and the power Z of the mica heating frame is 1:2.5 linked, that is, one meter length of the electric heating tube, the power Z is more than 2500W, normal heating of heat transfer oil, we generally set the share connection is 1:1 or 1:1.5 to reduce the rate of carbonization and life.
There are five types of electric heating tubes:
1. According to the classification of the outlet method, it can be divided into single-head electric heating tube and double-head electric heating tube.
2. According to the classification of raw materials, it can be divided into stainless steel electric heating tube, quartz electric heating tube, Teflon electric heating tube, titanium electric heating tube.
3. According to the classification of appearance, it can be divided into straight heating tube, U-shaped heating tube, L-shaped heating tube, W-type electric heating tube, finned electric heating tube, special-shaped electric heating tube.
4. According to the classification of use, it can be divided into dry heating tube and water heating electric heating pipe.
5. According to the classification of heating methods, it can be divided into resistance heating, induction heating, arc heating, electron beam heating, infrared heating, medium heating and other types.
