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    • 7. 发明授权
    • 가변각유체안내장치를구비한터보기계장치
    • KR100388158B1
    • 2003-09-06
    • KR1019950072255
    • 1995-12-28
    • 가부시키가이샤 에바라 세이사꾸쇼
    • 하라다히데오미니시와끼순로다께이가즈오
    • F04D1/00
    • F04D29/466F04D27/002F04D27/0246F04D29/462
    • A turbomachinery having variable angle diffuser vanes is demonstrated with the use of a centrifugal pump. The performance of a diffuser is enhanced greatly by the use of adjustable angle diffuser vanes which can be set to a wide range of vane angles to provide a variable size of an opening between adjacent vanes. The demonstrated pumping system has a significantly wider operating range than that in conventional pumping systems over a wide flow rate, and is particularly effective in the low flow rate range in which known diffuser vane arrangements would lead to surge in the entire system and other serious operational problems. A number of concrete examples and formulae are given to demonstrate the computational methods used to select a vane angle for a given set of operating conditions of the turbomachinery.
    • 使用离心泵来演示具有可变角度扩散器叶片的涡轮机械。 通过使用可调节角度的扩散器叶片,扩散器的性能大大提高,可调节的角度扩散器叶片可以设置为宽范围的叶片角度以在相邻叶片之间提供可变尺寸的开口。 所展示的泵送系统在宽流量下具有比传统泵送系统更宽的操作范围,并且在已知的扩散器叶片布置会导致整个系统中的喘振和其他严重的操作的低流量范围中特别有效 问题。 给出了许多具体的例子和公式来演示用于为涡轮机械的给定的一组工作条件选择叶片角度的计算方法。 <图像>