Thermocouple, temperature monitoring equipment and brazing flame temperature real-time monitoring method

The invention provides a thermocouple, temperature monitoring equipment and a brazing flame temperature real-time monitoring method, and belongs to the technical field of temperature monitoring, the thermocouple comprises a temperature sensing main body and a protective sleeve arranged outside the temperature sensing main body, the protective sleeve comprises a protective base material, a high-aluminum protective sleeve and a nickel-aluminum ion modified layer, the protection base material is arranged on the outer wall of the temperature sensing body, the high-aluminum protection sleeve is arranged on the outer wall of the protection base material, and the nickel-aluminum ion modification layer is arranged on the outer wall of the high-aluminum protection sleeve. The thermocouple has excellent corrosion resistance, impact resistance and thermal shock resistance, and can effectively transmit temperature signals. The temperature monitoring device is wide in temperature measurement range, high temperature is iso