By analyzing the reasons causing deaerator vibration when unit starting, it is considered that the main cause is uneven steam heating along the whole distributing tubes.

经分析认为：沿配汽管全程蒸汽加热不均是导致火电厂除氧器投运过程中加热振动的主要原因。

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The single-shaft heating steam turbine unit runs flexibly, increases the heating amount by over 20 percent, and is suitable for the heating units of all power.

本发明运行灵活，提高供热量20％以上，适用于所有功率的供热机组。

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