By blowing into the nitrogen or other gases, the harmful gas out of the protection tube, thereby improving the life of the thermocouple. It is an indispensable temperature measuring device in 300 thousand tons of synthetic ammonia plant.

The structure principle of blowing thermocouple is in armored thermocouple sense of original temperature and the outside protective pipe is formed between a gas way and in the gas path, in a certain pressure of inert gas, to eliminate or reduce thermocouple under the conditions of high temperature and high pressure reducing gases penetrate the trace tantalum elements added, increase the blowing thermocouple suction characteristic, thereby prolonging the service life of the armored thermocouples. Key temperature sensor for synthetic ammonia plant.

According to a variety of hot blowing blowing, blowing flow, positive pressure air blowing type three. No air blowing for less than or equal to 1200 DEG C, suggestions for vertical mounting. By blowing into the nitrogen or other gases, the harmful gas out of the protection tube, thereby improving the thermocouple life, the service life of about 12 to 24 months.

It has been widely applied in Guangzhou petrochemical, Shanghai Petrochemical, Datang Duolun coal chemical industry, Shanghai Gaoqiao Petrochemical, Zhanjiang petrochemical, Jilin oil refining factory for oil refining and chemical plant.