Novel Claus system for acid gas sulfur recovery

The invention discloses a novel Claus system for acid gas sulfur recovery. The novel Claus system comprises an acid gas combustion subsystem, a combustion advanced analysis control subsystem and a conversion subsystem, the acid gas combustion subsystem comprises a sulfur production combustion furnace; the advanced combustion analysis control subsystem is used for monitoring the flow of acid gas, process tail gas and air in real time, monitoring concentration parameters of components in the acid gas and the process tail gas and temperature parameters of a burner of the sulfur-making combustion furnace, controlling the flow of air entering the burner, controlling the proportion of the acid gas entering the burner of the sulfur-making combustion furnace, a hearth and the conversion subsystem, and controlling the temperature of the burner of the sulfur-making combustion furnace. The temperature of a burner of the combustion furnace is controlled to be within a preset range, and the ratio of H2S to SO2 entering th