Aiming at the problems existing in fault diagnosis of Distributed micro gas turbine, a kind of new information system frame of fault Diagnosis on Distributed micro gas turbine is proposed in this paper. The consumers and the manufactures contact with each other through Internet, share the corresponding data of the Distributed Micro-turbine, and diagnose and solve the faults together. Through the study of collecting method of the micro gas turbine generating sets’ vibration signals, the technique of gathering reliable vibration signals is designed. The traditional method is revised by this new system, and this can greatly improve the efficiency of Fault Diagnosis, reduce the cost of equipment maintenance, and be in favor of the accumulation and updating of techniques in this field.

The technique of three dimensional solid element model and assembly was used to determine the temperature field of radial-flow impeller. The FEM software Cosmos was applied to analyze model system, and the precise analytic results were obtained. The results show that the analytic model can reflect the stead-state and transient temperature field characteristics of impeller directly, and thus can be worthy reference to analyze and calculate the temperature field of impeller in engineering design.