燃气轮机机组的设备对中是技术难度很大的工作，它包括燃气轮机和齿轮箱、齿轮箱和发电机的对中。对中工作应首先选好基准，为减小工作量，一般选取齿轮箱为对中基准。然后调整非基准与基准的同轴度。在对中前应把对设备对中状态有影响的部件安装好；在对中过程中不应人为对设备施加外力，并考虑环境温度对对中的影响。 Equipment alignment of gas turbine units is a difficult task, and includes centering gas turbines and gearboxes, gearboxes and generators. Work should be selected first benchmark, in order to reduce the workload, the general selection of gearbox for the benchmark. Then adjust the concentricity of the non-datum and datum. Prior to centering, the components that affect the alignment of the equipment should be installed; the external forces should not be artificially applied to the equipment during alignment and the effect of ambient temperature on the alignment should be taken into account.