Stationary anti-corrosion thermocouple

The utility model discloses a stationary anti-corrosion thermocouple including a thermocouple wire. The thermocouple wire is sleeved with a steel pipe. The steel pipe is covered with a protective layer. The protective layer is composed of aluminum silicate felt and refractory cement. The aluminum silicate felt wraps the outer wall of the steel pipe, and the refractory cement wraps the aluminum silicate felt. Compared with the prior art, the stationary anti-corrosion thermocouple, in which the steel pipe is wrapped with the aluminum silicate and the aluminum silicate is wrapped with the refractory cement, can be immersed in an aluminum melt liquid for a long time, is anti-corrosion, and has a service life four times longer than that of a common thermocouple.