Issue with the diameter of armored thermocouples
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I would like to ask everyone: can a φ4 armored K-type thermocouple withstand a temperature of 1200 degrees? Is it acceptable for a casing with an outer protective sleeve to have a wall thickness of only 3 times that of normal casings, when operating under a pressure of over 30 kilograms and at a temperature of 1200 degrees?
Just based on temperature alone, it’s certain that it won’t pass; K-type thermocouples are generally suitable for temperatures up to around 1000 degrees. Besides, with such high pressure, even a thin wall thickness can cause problems. One also needs to pay attention to the composition of the medium, as well as its permeability and corrosiveness
I don’t think it will work; it’s too thin, with high temperature and high pressure.
It’s not possible; for temperature measurement, S or B type noble metal thermocouples should be used, and the material of the casing must be chosen based on the process medium.
Absolutely not, unless you want to cause an accident
For a K-type, 1200 is required – that’s not feasible. Even with 3 layers of thickness, a pressure of 30 kilograms is still not realistic! !
We also thought it wouldn’t work, but the manager said that they referred to the casing used at the same location at Yuntianhua, which is only 3 inches thick, and claimed there’s no problem with that The casing material is GH3039
It seems to be designed by Wuhuan Institute; the thermocouples inside the vaporization furnace
The wall thickness of the thermocouple sheath for high temperature and high pressure must be at least 3 times that thickness; it’s not sufficient to be only 3 times thick.
I don’t think it will work; the wall is too thin.