Help: Temperature control for jacketed heating equipment
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Do you have any good temperature control solutions for the temperature control of ordinary jacketed heating equipment? Is it difficult to achieve a temperature accuracy of 0.5°C? What level of precision can generally be achieved? I hope friends with experience in this area can give some advice!
Take a look at (A Brief Discussion on Temperature Control in Jacketed Glass Reactors); it should also apply to other equipment. http://bbs.hcbbs.com/viewthread.php?tid=408221&page=1&extra=page%3D1
A temperature deviation of 0.5 is really quite difficult, isn’t it? I’m not sure if you use PT100 thermistors or something else. Our company can only accept values within a range of plus or minus 5 degrees. Perhaps more precise measuring instruments are really needed.
I guess 0.5 degrees is also very difficult to achieve, as temperature itself is a factor with significant lag. I wonder what your heating medium is?
There is no problem in the thermometer meeting the requirements; what’s crucial is that the temperature measurement point can be controlled with such precision. However, this does not mean that the desired standards can be achieved everywhere in the system – the design of the equipment is key.
It’s indeed very difficult; this is the requirement set by the domestic pharmaceutical industry for virus inactivation tanks. Currently, electric heating is used, but since the tanks are relatively small, with a capacity of around several dozen liters, it’s necessary to install bottom valves at the bottom of the tanks. This makes it difficult to determine the appropriate location for the electric heating elements. It is said that a temperature control of 0.5 degrees Celsius is possible, but it’s likely to be challenging. I don’t have any experimental data on this either, which is really frustrating
Don’t worry, OP; if you approach it bravely, maybe you’ll succeed. The following suggestions are provided: 1. Release as many relevant parameters as possible to get help from others; 2. The key to temperature control lies in the system taking all aspects into consideration; 3. The type of heating method used is also important; 4. The control software used is equally important. I have seen ABB’s temperature control systems. 5. Even if it doesn’t reach 0.5 degrees, 1 degree is still good.
I’m currently working on this as well, but my requirements for temperature accuracy aren’t very high~! Choosing the thermostat is also very important