steam-heated circle

With the pressure reduction evaporation of boiler blowdown water serving as a steam spray working medium a tangential circle swirl flow can be formed in the combustion space of the boiler, resulting in an intensified combustion and the improvement of aerodynamic distribution in the furnace.

采用锅炉排污水降压汽化作为蒸汽喷雾介质，在炉内燃烧空间形成切圆旋流，强化炉内燃烧，改善炉内气流动力分布状态。

In base of the summary of predecessor's progeny, the dissertation summarize available simulation algorithm on condensation-steam equipment, which including condensator, air pump, condensate pump, circle pump.

本文在总结前人成果的基础上，给出了适用于船用凝汽设备的实时仿真数学模型，主要包括冷凝器、抽气器、凝结水泵和循环水泵等。

It confirms that tempering quality after being circle checked is the main cause for deformation of the steam seal ring made by rolling.

通过分析，确认校圆后的回火质量是钢板卷制汽封圈产生变形的主要原因。