大型汽轮机级流型及其判别准则

Stage flow pattern and the discriminating criterion of the large stream turbines

详细论述了汽轮机变工况核算的技术难点,提出了级流型概念,导出了定熵流级流型判别准则,发现级流型是级的固有属性。级流型概念的提出、判别准则的出现以及级流型是级固有属性的揭示,丰富了汽轮机变工况理论。

The technical difficulty of turbine varying condition calculation was discussed in detail.The concept of stage flow pattern was proposed.The stage flow pattern discriminated criterion of isentropic stream was derived exactly based on thermodynamic relational expressions.The author finds out that stage flow pattern is the inherent characteristic of stage.These achievements will enrich the turbine varying condition theory.