Explosion proof thermocouple utilizes gap explosion-proof principle

The explosion-proof thermocouple protection tube and measuring element are separated structures, which can quickly replace the temperature measuring element for non-stop repair There are various forms and materials of protective tubes that can meet the temperature measurement needs of high-pressure, high-temperature, and strongly corrosive media Adopting armored components, it is pressure resistant, earthquake resistant, and operates stably and reliably Explosion proof markings d Ⅱ BT4, ia Ⅱ CT4, suitable for temperature measurement in environments with explosive gases below level II, ignition temperature T4 or above
Explosion proof thermocouples consist of two homogeneous conductors (thermoelectric electrodes) with different compositions forming a closed circuit. When there is a temperature gradient at both ends, current flows through the circuit, resulting in a thermoelectric potential between the two ends By utilizing the principle of gap explosion-proof, design junction boxes and other components with sufficient strength, and seal all parts that can generate sparks, arcs, and dangerous temperatures inside the junction box. When an explosion occurs inside the chamber, it can be extinguished and cooled through the gap between the joint surfaces, preventing the flame and temperature after the explosion from being transmitted outside the chamber.