Explosion-proof thermocouple WRM working principle and characteristics

working principle

Explosion-proof thermocouple WRM originally used the gap explosion-proof principle to design a junction box with sufficient strength to seal all parts that generate sparks, arcs and dangerous temperatures in the junction box. When an explosion occurs in the chamber, it can pass. The joint gap is extinguished and cooled so that the flame and temperature after the explosion are not transmitted outside the chamber.

Characteristics

A variety of explosion-proof forms, good explosion-proof performance; compression spring type temperature sensing components, good anti-vibration performance; large temperature range; high mechanical strength, good pressure resistance; according to the international IEC standard zui new explosion-proof regulations GB3838 design; Cavity explosion-proof structure, easy to replace temperature measuring components, safe and reliable

Explosion-proof mark dIICT6, suitable for temperature measurement below IIC level, above ignition temperature T6, containing explosive gas.

In chemical plants, production sites are often accompanied by a variety of flammable, explosive chemical gases, steam, etc. If the use of ordinary thermocouples is very unsafe, it is easy to cause environmental gas explosion. Therefore, an explosion-proof thermocouple WRM must be used as a temperature sensor in these cases.