In fact, there are two kinds of electric heating tubes that belong to the range of dry burning electric heating tubes, one is a heating tube that is heated in the air, and the other is an electric heating tube that is heated in the mold. With the continuous refinement of the types of electric heating tubes, the electric heating tube used to heat the mold is called the Mosaic mold electric heating tube. So now we are talking about dry-fired electric heating tubes just referring to electric heating tubes used to heat air. So what is the good of dry electric heating pipe?
1. Add heat sink
There are two commonly used dry-fired electric heating tubes: one is a smooth stainless steel surface heating tube, and the other is a metal fin wound on a smooth stainless steel surface. Dry electric heating tubes with fins are recommended if installation space permits. Because this fin is wound on the stainless steel surface, the heat dissipation area of the dry-fired electric heating tube can be increased to speed up the heat dissipation rate of the dry-fired electric heating tube. The faster the heat dissipation, the faster the heat.
The finned dry-fired electric heating tube also has the advantage of ensuring the service life of the electric heating tube. We know that when the electric heating tube is used in the air, its heat conduction rate is much slower than that of the heating tube that heats water or heats metal holes, and the heat dissipation rate of the dry heating electric heating tube is faster after the fin is added, so the surface temperature will not be too high. The surface temperature is not too high, it will not burn out the dry electric heating tube.
The dry-fired electric heating pipe with good life should not only increase the heat sink, but also choose the appropriate material.
2, the tube shell material is selected according to the temperature
***1. The working temperature is 100-300 degrees, and 304 stainless steel is recommended.
***2. The working temperature is 400-500 degrees, and stainless steel 321 is recommended.
***3. The working temperature is 600-700 degrees, and the material of stainless steel 310S is recommended.
****4. If the working temperature is about 700-800 degrees, it is recommended to use Ingle imported material.
3. The filling material is selected according to the temperature
A. Tube surface temperature 100-300 degrees, choose low temperature filling material.
B. Tube surface temperature 400-500 degrees, choose medium temperature filling material.
C. Tube surface temperature 700-800 degrees, choose high temperature filling material.
Based on the above points, we can know what kind of dry electric heating pipe is good, not only to increase the heat sink, but also to choose the appropriate tube material and filling material, so that it can be used for a long time.
Post time: Dec-22-2023