I would like to ask how to achieve simple heating at a temperature of 300°C; can electric heating be used for this purpose?

Could the use of steam coils to heat the insulated section be considered? This approach is simple and eliminates the risk of electric leakage; the steam coils can be connected using flanges, making them easy to remove. If steam coils cannot be used, electric heating strips for welding heat treatment can also achieve the same effect.

For steam coil heating, is a steam source required? If necessary, I can’t consider this approach. How is the electric heating strip used for welding heat treatment actually implemented? Mainly, the structure of my current equipment has already been determined. My approach is to add auxiliary components for heating, without changing my existing equipment. Is there any way? If not, I’ll consider changing the existing structure.

1. If a steam coil with insulation and heating is used, it is relatively simple, but it is necessary to calculate whether the low-pressure heating steam can reach 300 degrees, and by how much temperature it needs to rise to reach that level Also, as you said, using steam is too complicated, so that makes things difficult. 2. With electric heating, the main issue is the insulation of the heating elements and pipelines; it’s fine if heating occurs occasionally, but if it runs continuously for 24 hours, the equipment is prone to damage. It’s necessary to calculate the heating power in detail, and factors such as explosion protection may also need to be taken into account

If the flow rate is low, electric heating can be used; if the flow rate is high, large electric heaters can be employed, which resemble shell-and-tube heaters with numerous electric heating elements inside the shell. This post was last edited by sus321 on 2009-3-31 12:30]

If explosion protection cannot be achieved, it’s still acceptable, but insulation is absolutely necessary. We either keep it heated 24/7, or it only runs when the equipment is started; it definitely doesn’t run for more than 8 hours a day. Additionally: Can electric heating be used to reach 300°C? In fact, the temperature ranges from 100 to 200°C. Actually, my left column tube is heated to 300°C; it’s just that after vaporization, the vapor passes through the insulation tube and may be condensed there.

The flow rate is very low; it’s for laboratory use, so a simpler electric heating solution is considered.

For laboratory use, electric semi-heating is sufficient; for use in factories, it is recommended to use steam heating.

It is best to use electric heat tracing strips, as the technology is now quite mature. We have used ones with even stricter requirements than yours; it’s best to use electric heating cables without any joints in them. We can use electric heating rods to directly heat sulfur into sulfur vapor. So it’s very cost-effective for electric heating, and it can automatically stop when the desired temperature is reached, as well as start heating again when the temperature drops. If you have any technical issues, you can send me an email

Heating method of electric heat tracing cables: If I use them, can these cables be wrapped directly around my insulation tube? So how is electric heating wired? How is it most appropriate to lead it out from my incubator lid? This question of mine has not been resolved. Also, my temperature is 300°C. Can the temperature be automatically adjusted using the electric heating cable as you suggested? Isn’t it necessary to add a temperature control instrument? How to purchase electric heat tracing cables?

First question: The electric heating tape can be wrapped directly around the pipe, with insulation applied on the outside; aluminum silicate is recommended for this purpose. Second question: An external power source is required, as there is a separate control circuit. It’s not clear whether the necessary conditions for an external power source are met; the manufacturer can provide this as well. Third question: A heating resistor is needed in order to measure the temperature. Fourth question, don’t forget to give it some points. Thank you

First question: The electric heating tape can be wrapped directly around the pipe, and then insulation is applied on top; aluminum silicate is recommended – should aluminum silicate be used as the insulation layer? The second question: it should be powered by an external source; it has a separate control circuit. I’m not sure whether it meets the requirements for external power supply – the manufacturer can provide that as well. ---------------- If no external power is used, how can it heat up? What is a so-called separate control loop like? The third issue is that a heating resistor is needed to measure temperature. ---------------Do you mean temperature measurement using a thermal resistor? Fourth question: don’t forget to give it some extra points. -------------- Okay, please ask the moderator to give more points (I can’t do anything about it, though I’m very grateful in my heart); he’s very professional and proactive.

Its working principle is as follows: first, based on the temperature of your medium and the temperature you want to achieve, the power required for the electric heating tapes is calculated. This power is then distributed evenly among 3 to 6 electric heating tapes, which are placed directly on the pipes; insulation must be applied around them otherwise the temperature will not rise. Under normal circumstances, thermal resistors are installed in sections along the pipeline to measure temperature. I’m not sure if your pipeline can achieve this. In fact, the control principle is very simple, just like that of a water dispenser. Stop when it gets hot, and heat it up again when it cools down. Another point is that if your pipeline is long, it would be better to heat it in segments. You can contact me if necessary. I am not the manufacturer. This post was last edited by Fengxue on 2009-3-31 at 15:43.]

Answering the question from floor 12: A separate control circuit means that this electric heating element is wired separately, a thermistor is used for temperature measurement, and the heating process is controlled independently through a dedicated circuit module. Typically, manufacturers have a separate power distribution cabinet for this section. But you said it’s for laboratory use; I saw the diagrams and if the pipelines are sized proportionally, they aren’t very long. You mentioned that the output temperature of the equipment at the front is 300°C – could heat dissipation be that significant through such short pipelines? Shouldn’t we consider the necessity first? It is recommended to use insulation directly, as you only need 100–200°C. Of course, I can’t calculate your heat dissipation. What I can do is give some suggestions: D. By the way, the poster’s photos are really beautiful: lol