Determinants of the service life of electric heating tubes and how to improve them

Determinants of the service life of electric heating tubes and how to improve them

Firstly, let's take a look at the factors that determine the service life of electric heating tubes. In addition to the quality of the resistance wire, the service life of electric heating tubes is also related to factors such as the quality of magnesium oxide powder and the selection of resistance wire diameter. For high-temperature electric heating pipes, when selecting the diameter of the resistance wire, the surface load of the resistance wire needs to be calculated to meet the service life requirements. There are two determining factors for the service life of electric heating tubes. One is the external environment and frequency of use, the key being the environmental temperature, whether the heat dissipation state of the electric heating tube is good, and whether the electric heating tube is designed according to such an environment; The second is the inherent quality of the electric heating tube, and the service life varies with different materials.

Determinants of the service life of electric heating tubes and how to improve them

So what aspects can we approach to improve the service life of high electric heating tubes? Firstly, we should determine the heating medium and choose what type of material for the pipe. Next, we should ensure that the voltage during operation is not less than 90% of the rated voltage, so as not to damage the internal structure of the electric heating pipe. Proper maintenance and cleaning are also necessary factors to improve the service life.

The gap inside the electric heating tube is filled with magnesium oxide sand. The magnesium oxide sand at the outlet of the electric heating tube is prone to contamination due to the infiltration of impurities and moisture. Therefore, it is necessary to pay attention to the state of the outlet of the electric heating tube during operation to avoid leakage accidents caused by this. When using electric heating tubes for air heating, attention should be paid to the uniform arrangement of the electric heating tubes. The advantage of doing so is to ensure that the electric heating tubes have sufficient and uniform heat dissipation space, and to ensure the fluidity of the air as much as possible, thereby improving the heating efficiency of the electric heating tubes.

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