Can it still be measured directly using a thermocouple sheath in an oxygen-enriched environment at 1500 degrees and low pressure?
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Can it still be measured directly using a thermocouple sheath in an oxygen-enriched environment at 1500 degrees and low pressure? Thermocouples can reach a temperature rating of 1600 degrees; the sleeve materials, such as silicon carbide and corundum, can also withstand temperatures up to 1600 degrees and are resistant to oxidation. These are theoretical values – but how is this implemented in practical applications? Can the material of the casing be directly determined by referring to the material of high-temperature equipment? If the temperature exceeds 1600 degrees, can thermocouples no longer be used for temperature measurement? What method should be employed then?
Long-term use temperature 1500? Is it possible to exceed 1600? As long as it doesn’t exceed that limit, corundum should be fine; however, for long-term use at temperatures below 1500, it’s better to choose division B. If we go up to 1800, there are still tungsten-rhenium thermocouples; for higher temperatures, is contactless measurement the only option?
1800 degrees! The bones would probably be turned into water~~~ What an incredibly high temperature
Just use a double-layer corundum sleeve – that’ll do
Points to note: 1. A Type B material is required at 1500 degrees; 1700 degrees is also possible, of course in theory. It’s best to choose corundum with a high purity, over 99.7%； 2. For oxygen-enriched environments, it is recommended to perform oil and grease removal on the surface of the casing – safety comes first.
Water-coal slurry vaporizer, high pressure, 1400°, Type B thermocouple; average lifespan of 60–90 days, with a maximum of over 280 days, under conditions of slurry erosion and abrasion. If it weren’t so strict, it should take longer.
In fact, infrared thermometers are quite accurate these days as well
Which product do you use? Is it Kunshan or Tianjin?
What material is used for the sleeve of this thermometer?
Three-layer casing; the outermost layer of alumina is likely still imported.