hot air valve;  finite elements;  temperature field;  Heat transfer

The finite element method was used to analyze the temperature field of the valve plate of the micro-water energy-saving hot air valve in the steady state, and the temperature field distribution of the valve plate in the steady state working state was calculated by the finite element software ANSYS, and when the valve was fully opened, the outer ring of the valve plate had the highest temperature and the largest temperature difference, which was easy to cause the deformation of the outer ring of the valve plate; When the valve is closed, the maximum temperature at the junction of the valve plate and the refractory is about 205 °C, and the temperature of the valve plate core increases with the increase of the thermal conductivity of the refractory.