Back steam into the turbine and drain condensate from the casing.
蒸汽倒进汽轮机并从壳体排凝。
2
It is ripe in technology and doable in practice that one old condensing turbine with proper parameter is remade to be postposition turbine of the back extraction pressure turbine.
选取参数适当的旧凝汽式机组改造为背压机组的后置机在技术上是成熟的，在实际应用上也是可行的。
3
A simple and approximate method is worked out on changing working states to the characteristic of steam falling away from some back stages of a turbine in the working state of the little volume flow.