A Theoretical Study of the Influence of Gas Pump Thermocouple Hot Cover Structure on Temperature Measurement

Gas pump thermocouple plays a major role in accurate measurement of the kiln temperature and reducing temperature measurement error. How to design and optimize hot cover structure as well as raise temperature measurement precision has become an important issue in researching and developing new temperature measuring equipment. The author uses the FLUENT6.0 software to simulate the suction of thermocouple working status. In view of the thermocouple hot cover structure, three modes are structurally optimized and simulated, namely diffuser nozzle, extended length and narrow hot cover diameter. Contrast temperature of convective data shows that optimizing heat expiation cover structure can reduce temperature measuring error, which provides numerical and theoretical reference for theoretical analysis and making of the equipment.