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Tubular heater is an electric heating device that heats the medium, converting electricity into heat energy. It uses stainless steel electric heating tubes as heating elements. The product is equipped with multiple guide plates inside, which guide the medium's residence time in the cavity, thereby fully and evenly heating the medium and improving heat exchange efficiency. The internal high-temperature voltage system is composed of metal tubes. During operation, the high-temperature circulation system has magnesium oxide aluminum with good insulation and thermal conductivity inside. The tube ends are sealed with silicone ceramic. The structure is not only advanced but also has good heating effect. But do you know? The tubular heater is scientifically called tubular electric heating element, commonly known as electric heating tube. Its quality can generally be judged from the following aspects:
1. If the preliminary judgment is that the tubular heater itself is designed to exceed the standard (here, exceeding the standard generally refers to the proportional relationship between the heating zone and power of the electric heating tube, professionally speaking, the surface load exceeds the standard), we will give customers suggestions or redesign for free.
2. If the preliminary judgment is that the heating tube itself is not designed to exceed the standard, we can analyze from the following entry points:
(1) Is the voltage correct? (Reference common questions: 1. How to distinguish between rated voltage and working voltage of electric heating tubes? 2. What should be noted when determining the rated voltage of electric heating tubes?)
(2) If heating corrosive liquids, is the material of the heating tube selected reasonably?
(3) When designing the tubular heater, is the pressure bearing capacity of the heating tube considered? Generally, the normal ordinary heating tube withstands pressure of 0.6MPA.
(4) If heating liquids, such as threaded flange electric heating tubes, are there installation problems? For example, is the heating zone of the electric heating tube dry burning?
(5) If heating air, is there no fan circulation or temperature control?
(6) If heating water, what is the water quality? Is the scale severe? (Reference: Effect of scale on heating tubes)
(7) If heating thermal oil, what is the quality of the oil? What is the flow rate of the oil? (Reference: What to do if thermal oil heating tubes are prone to carbon deposition?)
(8) If it is a mold electric heating tube, check whether the gap between the diameter of the single-head electric heating tube and the mold hole is kept within 0.1mm, and whether there is temperature control? (Reference: Design and use precautions for mold single-head heating tubes)
The above are some bases for judging the quality of tubular heaters. Specific problems should be analyzed specifically.
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
