Electric heating tube will generally use stainless steel (304 is the most commonly used material, if there is corrosion, 316, 316L will be selected according to the situation, and 310S will be selected when high temperature is required). If the specific construction environment is not known when making the heating tube, stainless steel 304 material will generally be used as the shell. Because stainless steel 304 has good plasticity. If the heating environment is highly corrosive, titanium alloy and polytetrafluoroethylene are generally selected with better corrosion resistance.
Heating pipe is the premise of ensuring the quality of heating pipe, which plays a vital role in the future use effect and service life.
For electric heating tubes, we mainly consider its effect, life and price. Choosing the right electric heating pipe must first know its working environment, choose a reasonable material according to the working environment, and then calculate the correct heating power. Among the factors that affect the quality of electric heating tubes, the quality of materials accounts for a very important factor.
Electric heating tubes must ensure reliable quality when purchasing equipment, so that the safety will be greatly improved when used, and the service life and safety of reliable quality equipment are more trustworthy. The electric heating tube should be used correctly, because improper operation will not only damage the equipment, but also endanger the personal safety of the user, so at any time it is necessary to operate the equipment correctly, and if there is no understanding during use, you must first understand, and you must not operate blindly.
Electric heating tube may not necessarily leak electricity during use, but users still need to understand the cause of leakage in advance, so that when this problem occurs, they can also seek a response in time to solve it. There are three main causes of electric heating tube leakage, insulation, high voltage and current leakage. For the leakage of electric heating tube during the application process, if the nozzle of the equipment is not treated thoroughly, it will cause the magnesium oxide powder in the tube to be damp, then the insulation resistance will be reduced, and it is easy to leak. In addition, it is necessary to test the working temperature of magnesium oxide powder, heating wire, etc. used in the tube during the manufacturing process.
Electric heating tube will generally use stainless steel, if the production of electric heating tube does not know the specific construction environment, generally will use stainless steel 304 material as the shell, because stainless steel 304 has good plasticity. If the heating environment is highly corrosive, titanium alloy and polytetrafluoroethylene are generally selected, which have better corrosion resistance. The appropriate material is selected according to the working environment, and then the correct heating power must be calculated. Among the factors that affect the quality of electric heating tubes, the quality of materials accounts for a very important factor. In the use of electric heating tubes, it is necessary to consider water quality, liquid corrosion, oil scale, and the power design of the heating tube is reasonable enough, whether there are dry burning and other problems.
Whether the surface load design of the electric heating tube matches the material, whether there is fan circulation, whether there is temperature control, etc. Whether the pipe diameter of the electric heating tube is fitted with the aperture of the embedded hole, whether the surface load design is reasonable, whether the surface load design matches the material of the electric heating tube, whether there is temperature control, etc. In order to ensure that the above problems are properly solved, in order to ensure the service life of the electric heating tube, in the actual industrial operation process, we must pay attention to the selection of the electric heating tube that matches the use environment, and pay attention to the use method. For the use of electric heating equipment, want to extend the service life of the equipment, there are many precautions to pay attention to, many times if not careful, not only will affect the use of the equipment, serious will directly pose a threat to the safety of the user.
The components that mainly affect the quality of electric heating tubes are shell, heating wire, magnesium oxide powder, sealing materials, and selection principles: high temperature resistance and corrosion resistance.
