热能与动力工程专业英语翻译 6.1

6.1

‟s most efficient speed is usually much higher than that of the machine it is driving ,so a speed reduction gear usually has to be used .

600 000马力的汽轮机。

转子——叶轮上装有动叶，转子两端装有轴颈。

轴承箱——安装在气缸上，用来支承转子的轴。

调速器和阀门系统——通过控制蒸汽流量来调节涡轮的速度和出力，同时还有轴承润滑系统以及一套安全装置。

某种类型的联轴器——用来连接从动机械

…catch ‟the steam from the nozzle smoothly ,and they are curved so that they change the direction of the jet and in so doing receive an impulse which pushes

6.1（见原文）所示为一种简单的冲动式汽轮机。

…reaction ‟ turbine .

moving blades are also nozzles ,similar to the stationary nozzles but facing the other way ,and in addition to catching and deflecting the steam issuing from the stationary

（见原文中图6.2）它综合了冲力和反作用力的原理。

6.2中的涡轮壳带有一整圈喷嘴，这些喷嘴和反冲式涡轮机里的一样，也是弯曲的，并以最有效的角度引导蒸汽喷向转动的叶片。

,under these conditions the exhaust volume flow becomes large ,and it is necessary to have more than one exhaust stage ;for example ,a large turbine may have three are

“axial flow ”turbine .

“double flow ”.

drops can damage the blades and reduce the turbine efficiency ,and this is one reason why the steam ,after passing through the high-pressure turbine ,idea sometimes

。