The temperature in the reaction furnace is around 3100°C. What type of instrument is suitable for measuring this temperature?
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The temperature in the reaction furnace is around 3100°C. What type of instrument is suitable for measuring this temperature? There should be no openings on the side; a thermometer has already been installed on the outer wall of the furnace, above the liquid level. 1. Thermal imager 2. Infrared radiation thermometer 3. Thermocouple. I would appreciate it if you could provide suggestions regarding these devices; it would be great if you could explain their principles, precautions, performance, etc. Any relevant information available would be very helpful. Thank you very much!
3100? 1300? There are no thermocouples available for 3100 at the moment
This post was last edited by qugd on 2020-3-20 at 10:31. Yes, it’s impossible to make thermocouples that can handle such high temperatures. Rhenium-tungsten wires can reach just over 2000 degrees (I think it’s around 2500–2600 degrees). In this case, a contactless method is still feasible.
For infrared radiation thermometers, the cooling of the lens also needs to be taken into account
But as long as it’s a reaction furnace, it should still be 1300°C, after all, the furnace body can’t withstand 3100°C either. It is recommended that LZ consider options B or R, and find a good protective sleeve to help extend the resistance time.
This post was last edited by qugd on 2020-3-23 at 10:41. However, the original poster could ask the people working on China’s controlled nuclear fusion experiment device EAST – they are capable of reaching temperatures in the tens of millions or even hundreds of millions of degrees, so they surely have a way to do it.
It is not necessary to measure the flame temperature at the center of the reactor; measuring the temperature of the furnace walls inside the reactor is sufficient
No thermocouple can reach the required temperature
If it is 1300°C, use an infrared thermometer with a Type B thermocouple. But note that an S-type thermocouple should be used on site when starting the oven heating, because neither infrared thermometers nor B-type thermocouples can provide readings at temperatures of 200–300 degrees, making it impossible to measure the oven heating curve.
What material is used for the furnace body to withstand a temperature of 3000 degrees?