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首页> 外文期刊>Chemical and Petroleum Engineering >CONTACT-FREE SLIT ROTOR SEALS WITH A CONTROLLABLE SHAPE OF THE THROTTLE SLIT
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CONTACT-FREE SLIT ROTOR SEALS WITH A CONTROLLABLE SHAPE OF THE THROTTLE SLIT

机译：节流阀瓣形状可控的无接触式转子密封

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摘要

In leak-proofing devices of compressors and pumping units, slit-type rotor seals are used widely in interstage packings and in devices for automatic relieving of axial forces operating on the rotor. In the case of nonrotating rotors, the leak-proofing effect of slit seals, if there is a pressure differential on them, depends upon the degree of loss of potential energy of the medium being sealed as it enters the gap, the viscous friction during flow in the gap, and turbulent mixing of the stream and its sudden expansion as it exits from the slit. In the case of rotating rotors, the leak-proofing effect of such seals is supplemented also as a result of creation by the surfaces of the rotating rotor, on account of viscous forces, of a peripheral (circular) component of the stream that resists escape of the medium being sealed in the direction of the longitudinal axis.
机译：在压缩机和抽油机的防泄漏装置中，缝隙式转子密封件广泛用于级间填料和自动消除作用在转子上的轴向力的装置中。对于非旋转转子，缝隙密封的防漏效果（如果在缝隙上存在压力差）取决于被密封介质进入间隙时势能的损失程度，流动过程中的粘滞摩擦在缝隙中，气流的湍流混合及其从缝隙中流出时突然膨胀。在旋转的转子的情况下，这种密封的防漏作用也由于由于粘性力由旋转的转子的表面产生的结果而得到补充，该表面由于粘性力而阻止了流的外围（圆形）流。在纵向轴线方向上密封的介质的高度。

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