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APPARATUS TO IMPLEMENT THE METHOD OF RAISING THE DYNAMIC PERFORMANCE LIMIT OF STEAM FLOW OR GAS FLOW TURBINES OR COMPRESSORS
APPARATUS TO IMPLEMENT THE METHOD OF RAISING THE DYNAMIC PERFORMANCE LIMIT OF STEAM FLOW OR GAS FLOW TURBINES OR COMPRESSORS
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机译:实施提高蒸汽流量或燃气流量涡轮或压缩机动态性能极限的方法的装置
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摘要
pAn apparatus for raising the dynamic performance limit of steam flow and gas flow turbines and compressors, in which a non-contacting seal is arranged in a clearance between a stationary wall in the form of a ring and a rotatable member while a non-contacting seal is arranged in the clearing and supported by the ring. The seal forms a labyrinth seal and includes throttling elements. The ring is surrounded by a housing arranged in radially spaced relationship to the ring and defining therewith an annular gap. The labyrinth seal includes an active section and at least one throttling element. The ring is provided with radially extending passages located ahead of the active section of the seal and past at least one of the throttling elements. The dimensions of the passages and of at least one of the throttling elements are so selected that the major portion of the leakage flow is passed into the clearance through the passages./p[US4057362A]
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