Analysis of the causes of electric tubular heater burst

- Aug 23, 2020-

Analysis of the causes of electric tubular heater burst:


In the process of using the electric tubular heater , some customers reported that the electric tubular heater  burst, so what may be the reason for the tube burst? 

1. Reason 1: the surface load (watt density) is too high

Before, we have introduced the relationship between the surface load of the heating tube and the surface temperature of the heating tube in various environments-the relationship between the surface load of the heating tube and the surface temperature in the still air medium, and the surface load of the electric heating tube in the flowing air medium. The relationship between the surface temperature The relationship between the heating surface load and the surface temperature of the electric heating tube placed in the metal) Through these introductions, we know that in different environments, the surface load of the heating rod directly affects its surface temperature. Then when designing the surface load of the electric heating tube, we must consider the surface temperature and the temperature resistance of its material. Because the surface load is too large and the internal temperature is too high, it is easy to cause the internal expansion of the electric heating tube, which will cause the electric heating tube to burst. And this is also why we have to ask our customer what is the working temperature and wording conditions for the the tubular heater that are going to use.

2. Reason two for electric tubular heater burst: poor quality magnesium oxide powder

There are many types of magnesium oxide powder, the best of which is modified magnesium oxide powder with high temperature resistance. If inferior magnesium oxide powder is used, when the stainless steel electric tubular heater  is working, the internal expansion of the stainless steel electric tubular heater will also occur, and the electric heating tube will burst. So choose the most suitable high grade MgO powder is critical important for making a high quality electric tubular heater.

3. The third reason for the burst of the electric tubular heater: the quality of the pipe of the electric tubular heater is poor.

Stainless steel is used the most in normal industrial tubular heaters, which are divided into welded pipes and seamless pipes. If the material is not selected properly, for example, the wall thickness is too thin and the pressure resistance is poor, it will also cause the electric tubular heater  to burst.

4. The fourth reason for the burst of the electric tubular heater : the problem of the heating medium

If the surface load design of the tubular heater is not available, and there are problems with the customer's heating medium, the electric tubular heater is bound to burst. For example, when the water quality is relatively hard, the scale will make the surface temperature of the electric heating tube unable to dissipate, causing the internal temperature to be too high, causing the electric heating tube to burst. The heat conduction oil electric tubular heater is the same. If the heat conduction oil has a heavy thickness and poor circulation, it will also cause the surface temperature of the electric tubular heater to be unable to dissipate, causing the internal temperature to be too high, causing the electric tubular heater to burst.

The above are only common reasons for the occurrence of electric tubular heater  bursts. The other special reasons are discussed and studied according to the actual situation. If your electric heating tube bursts are not caused by the above reasons, please call me JAYE INDUSTRY, we will do our best for you Find out the reason.


In the process of using the electric tubular heater , some customers reported that the electric tubular heater  burst, so what may be the reason for the tube burst? 

1. Reason 1: the surface load (watt density) is too high

Before, we have introduced the relationship between the surface load of the heating tube and the surface temperature of the heating tube in various environments-the relationship between the surface load of the heating tube and the surface temperature in the still air medium, and the surface load of the electric heating tube in the flowing air medium. The relationship between the surface temperature The relationship between the heating surface load and the surface temperature of the electric heating tube placed in the metal) Through these introductions, we know that in different environments, the surface load of the heating rod directly affects its surface temperature. Then when designing the surface load of the electric heating tube, we must consider the surface temperature and the temperature resistance of its material. Because the surface load is too large and the internal temperature is too high, it is easy to cause the internal expansion of the electric heating tube, which will cause the electric heating tube to burst. And this is also why we have to ask our customer what is the working temperature and wording conditions for the the tubular heater that are going to use.

2. Reason two for electric tubular heater burst: poor quality magnesium oxide powder

There are many types of magnesium oxide powder, the best of which is modified magnesium oxide powder with high temperature resistance. If inferior magnesium oxide powder is used, when the stainless steel electric tubular heater  is working, the internal expansion of the stainless steel electric tubular heater will also occur, and the electric heating tube will burst. So choose the most suitable high grade MgO powder is critical important for making a high quality electric tubular heater.

3. The third reason for the burst of the electric tubular heater: the quality of the pipe of the electric tubular heater is poor.

Stainless steel is used the most in normal industrial tubular heaters, which are divided into welded pipes and seamless pipes. If the material is not selected properly, for example, the wall thickness is too thin and the pressure resistance is poor, it will also cause the electric tubular heater  to burst.

4. The fourth reason for the burst of the electric tubular heater : the problem of the heating medium

If the surface load design of the tubular heater is not available, and there are problems with the customer's heating medium, the electric tubular heater is bound to burst. For example, when the water quality is relatively hard, the scale will make the surface temperature of the electric heating tube unable to dissipate, causing the internal temperature to be too high, causing the electric heating tube to burst. The heat conduction oil electric tubular heater is the same. If the heat conduction oil has a heavy thickness and poor circulation, it will also cause the surface temperature of the electric tubular heater to be unable to dissipate, causing the internal temperature to be too high, causing the electric tubular heater to burst.

The above are only common reasons for the occurrence of electric tubular heater  bursts. The other special reasons are discussed and studied according to the actual situation. If your electric heating tube bursts are not caused by the above reasons, please call me JAYE INDUSTRY, we will do our best for you Find out the reason.