Analysis and Application for Steam Path Evaluation Technology of Large Steam Turbines

The analysis was made on the factors influencing the turbine steam path efficiency,and the concept of the turbine steam path evaluation was introduced.The quantitative analysis and calculation for the factors influencing the steam turbine efficiency can be made by using relevant tool software and turbine steam path technology,which can help the decision making of the key maintenance area during the turbine overhaul.Taking one supercritical steam turbine as an example,the measurement data and evaluation results for the turbine overhaul can be got,and the advantage of steam turbine evaluation can be proved.