A Heavy Duty Gas Turbine Rotor Dynamic Balancing Technology Research

In recent years, the gas turbine engine as an extension of the aircraft engine products, attaches great importance to by countries, national 863 plan to set up the special developing heavy duty gas turbine. Rotor as the core component of gas turbine, the dynamic balance quality is directly related to success or failure of the entire project in power plant commissioning have occurred when the gas turbine caused by rotor vibration alarm parking situation, thus improve the quality of rotor dynamic balance is particularly important. This thesis mainly from the factors of restricting dynamic balance quality related, the study of rotor dynamic balancing technology.This paper studies the main contents are:the rotor dynamic balance tooling design, the choice of balancing machines and balance method, dynamic balancing technology was studied and the balance of the common problems and so on. From the perspective of the whole process balance contrast before and after the optimization of process route; From the perspective of a specific link analysis, select the typical parts, through experiments, the process of the equilibrium for manufacturability review, verify the correctness and feasibility of the process method.Experimental results show that the rotor balance is the third phase in the process of optimization, optimization of the former were without 2 levels of turbine blade rotor balance components and the whole machine rotor balancing step 2, the optimized after each loading level of turbine blade and three-stage compressor blade on a balance, this will put the balance of the blade to step 4. According to the optimized process route qualified rotor balance, stable operation, long service life. The balance of individual parts or components choice way and method, can balance out qualified parts.Through the study of this subject and determined the large rotor dynamic balance of process route, verify the feasibility of balanced way and method of typical parts. Fill my company in the field of heavy-duty gas turbine rotor balance is blank, which laid a foundation for other types of gas turbine rotor balance, improve the competitiveness of enterprises, to the enterprise long-term development has a very positive meaning.