Finite element analysis of the structure of the link levers of the labyrinth seal compressors 迷宮密封壓縮機連桿結構有限元分析
Study of nonlinear dynamic stability of labyrinth seal - rotating wheel system in hydraulic turbines 水輪機迷宮密封系統(tǒng)非線性動力穩(wěn)定性研究
The bottom bearing applies both labyrinth seal and frame seal , which have good performance of sealing . the main shaft is anticorrosive 下軸承端蓋密封采用雙重密封,可確保密封效果,主軸采用防腐新技術,能保護主軸免受腐蝕。
By the use of the combination of suction labyrinth seal and inflator labyrinth seal and advanced materials , the machine gains long term operation 把原來簡單的充氣式迷宮密封改為抽?充氣組合式迷宮密封,同時氣封采用更為高級的材質(zhì),實現(xiàn)了機組長周期運轉(zhuǎn)。
The main contents are as follows : firstly , the introduction of the labyrinth seals technology , including the classification the forms and the theory of labyrinth seals 本論文主要涉及以下內(nèi)容: 1 、介紹迷宮密封技術,主要包括迷宮密封的分類、密封形式和密封原理。
Sixthly , this article analyses analyzes the influence of such main factors as the rotor whirling speed , the entrance pre - rotating speed , the entrance pressure and the seals clearance on the dynamic characteristics of labyrinth seals 6 、分析轉(zhuǎn)子轉(zhuǎn)速、入口預旋速度、入口壓力、密封間隙等幾種主要因素對迷宮密封動力特性系數(shù)的影響。
A labyrinth seal is a non - contacting circumferential seal utilizing a tortured path for flow between the stationary and rotating ( or reciprocating ) parts . the design utilizes a series of pressure drops to reduce the leakage 迷宮密封是一種通過曲折通道增大流動阻力來實現(xiàn)封嚴的非接觸密封,通常用于密封氣體,廣泛應用于航空、能源、流體等領域的動力機械中。
The combined seal is a new style of non - contact sealing . it solves the problem of big clearence of labyrinth sealing , improves the sealing performance and reduces oil consumption and therefore ensures the long run of equipments 這種組合密封方式是一種新型非接觸式密封形式,解決了以往迷宮密封間隙過大的問題,提高了密封性能,減少了甩油量,從而從根本上保證了設備長期運行。
Labyrinth seals has been widely used in turbine machine , so the study on the theory of self - excited and dynamic characteristics has great important theoretical and practical meaning to the designing of a turbine machine with a sound dynamic function 迷宮密封廣泛應用于透平機械,研究其激振原理和動力特性系數(shù),對于設計一臺具有良好動態(tài)性能的透平機械具有重要的理論和實際意義。