How does the distribution of heating wires affect the temperature of the heating tube (heating rod)?

How does the distribution of heating wires affect the temperature of the heating tube (heating rod)?

Whether the surface temperature of the electric heating tube is uniform or not is an important technical indicator to measure the quality of the electric heating tube. It will directly affect the actual use effect, life, safety and other aspects of the electric heating tube. The main reason for the uneven surface temperature of the electric heating tube is the uneven density and eccentricity inside the electric heating tube.

Example of Magnesium Oxide Powder in Single Head Electric Heating Tube

Example 1. Two electric heating tubes with the same surface load, one heating medium is air, and the other heating medium is water. At this time, it is unreasonable to put the same technical quality requirements on the magnesium oxide powder used in the electric heating tube.

Example 2. Two electric heating tubes of the same shape, size and material, one can use low temperature magnesium oxide powder for lower working temperature; the other one should use high temperature magnesium oxide powder for higher working temperature. At this time, high-temperature magnesium oxide powder is selected, and there is no problem in product quality, but it is unreasonable in terms of production cost.

Therefore, for electric heating tube manufacturers, it is first necessary to classify electric heating tube products, and select magnesium oxide powder according to design requirements and working temperature range. The basic requirement is to meet product design requirements and meet relevant safety indicators.

How to choose magnesium oxide powder in single-head electric heating tube?

Magnesium oxide powder is one of the most critical materials for electric heating tubes, and the quality of magnesium oxide powder plays a key role in the quality of electric heating tubes.

During the working process of the electric heating tube, the heat generated by the heating wire is completely dependent on the insulating medium in the tube-magnesium oxide powder-for energy transfer and exchange, and the various chemical and physical properties of the magnesium oxide powder will be good or bad. It directly affects the safety of the electric heating tube and the efficiency of the electric heat exchange. Therefore, when selecting the magnesium oxide powder, it is necessary to make a reasonable selection according to the purpose of the electric heating tube, use conditions, environment, performance requirements and the performance characteristics of the magnesium oxide powder to ensure the electric heating tube The quality requirements.

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