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["중심무대의 축력력

2017-06-09View Original

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",각자 대신자, 중심무대의 �轴功率跟哪些东西有关系啊?为什么看数据表面质量流量和轴功率都大,轴功率反而还小呢?
Reply #22017-06-09
"전달하는 물질,出口压力有关
Reply #32017-06-09
"중요기의 기체는 소비해야 하는 에너지입니다. 대형 중심무대는 원동기(예: 증기터기, 연료터기 등)로�驱动,原动机轴端所传递的功率包括压缩机轴承、齿轮箱及联轴节等传动部分的机械损失以及压缩机内功率。内功率指的是压缩机转子对气体所消耗的功率。压缩机转轴是通过叶轮向气体传递能量的。叶轮不仅对气体作功,而且叶轮的轮盘、轮盖的外侧面及轮毂与周围气体的摩擦所产生的轮阻损失、叶轮出口高压气体漏回到叶轮低压端的漏气损失也都要消耗功。对整个压缩机来说,叶轮对气体作功转换成下列三个部分:提高气体的静压能(压缩功),使气体从进口压力提高到出口压力。提高气体的动能。在一般情况下,动能的提高不大,常常可以忽略不计。克服气流在级中的流动损失。这部分流动损失,是指气流在叶轮内和级的固定元件(如吸气室、扩压器、弯道、回流器、蜗壳等)内的流动损失。总之,压缩机级中的功耗有五部分组成,即静压能提高、动能的变化、流动的损失、轮阻损失和漏气损失组成的,但只有静压能的提高对气体的升压是有用的。
Reply #42017-06-09
"불가!其他条件相同的情况下,质量流量越大,轴功率越大;气体分子量越大,轴功率越大。
Reply #52017-06-10
"중요기의 입출 温压条件,进口物料组成(主要密度)有关。
Reply #62017-06-12
"하지만 사실,设备数据表确实显示的是,流量大,分子量大,然而出来的轴功率反而小"

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