AI Chat Paper
Discover the SciOpen Platform and Achieve Your Research Goals with Ease.
Search articles, authors, keywords, DOl and etc.
{{expandStatus?'Exit ':''}}Advanced Search
AI Chat Paper for AI reading assistance in English.
AI Chat Paper
An adaptive labyrinth seal was developed to improve traditional labyrinth seal wear-resistant capabilities in harsh conditions. A numerical model shows that the floating force is mainly generated by the uneven pressure distribution in the radial clearances of the seal. For gas seals, the hydrostatic effect caused by the pressure difference is the dominant factor for the conditions used in this study, rather than the hydrodynamic effect. The model was also used to analyze the effects of the eccentricity, the groove width and the inlet throttle length on the floating force and leakage rate. Experimental results then show that the sealing capability of this adaptive labyrinth seal is 2.3-3.1 times better than that of a traditional labyrinth seal. In addition, the sealing ring of the adaptive labyrinth seal can float for pressure differences of 0.05-0.30 MPa and responds quickly to changes in the surrounding conditions.
STOFF H. Incompressible flow in a labyrinth seal[J]. Journal of Fluid Mechanics, 1980, 100(4): 817-829.
RHODE D L, SOBOLIK S R. Simulation of subsonic flow through a generic labyrinth seal[J]. Journal of Engineering for Gas Turbines and Power, 1986, 108(4): 674-680.
MIYAKE K, ARIGA I. Leakage characteristics of rotating stepped labyrinth seals[J]. Transactions of the Japan Society of Mechanical Engineers, 1985, 51(466): 1975-1980.
LU Z X, XIE Y B, QIU D M. Finite difference simulation of flow field in labyrinth seals[J]. Chinese Journal of Applied Mechanics, 1992, 9(3): 87-92. (in Chinese)
ZHU G T, LIU W H. Analysis of calculation method of leakage of labyrinth seal[J]. Lubrication Engineering, 2006(4): 123-126. (in Chinese)
DING X J, YANG Y L, XIAO G J, et al. Investigation of flow and leakage in labyrinth seal[J]. Fluid Machinery, 2006, 34(4): 14-18. (in Chinese)
MA W S, CHEN Z B, JIAO Y H. Study on the influence of eccentricity and rotating speed on labyrinth seal force and dynamic parameters[J]. Journal of Vibration Engineering, 2012, 25(3): 282-287. (in Chinese)
RHODE D L, HIBBS R I. Tooth thickness effect on the performance of gas labyrinth seals[J]. Journal of Tribology, 1992, 114(4): 790-795.
YIN L, ZHANG W F, PAN B, et al. Study on influencing factors of dynamic characteristics for labyrinth seals with carbon dioxide[J]. Journal of Engineering for Thermal Energy and Power, 2020, 35(6): 28-36. (in Chinese)
QIN P B, ZHANG W F, CAO H, et al. Static and dynamic characteristics of eccentric labyrinth seals[J]. Tribology, 2020, 200(6): 52-62. (in Chinese)
JI G J, JI H H. Numerical investigation of effect of static bush with rub-grooves on the straight-through labyrinth seal leakage[J]. Journal of Aerospace Power, 2008, 23(8): 1403-1408. (in Chinese)
RHODE D L, HIBBS R I. Clearance effects on corresponding annular and labyrinth seal flow leakage characteristics[J]. Journal of Tribology, 1993, 115(4): 699-704.
DENECKE J, SCHRAMM V, KIM S, et al. Influence of rub-grooves on labyrinth seal leakage[J]. Journal of Turbomachinery, 2003, 125(2): 771-779.
LI B L, CUl S C, XU Z Q, et al. Design of a new composite sealing of high speed reducer[J]. Journal of Dalian Jiaotong University, 2019, 40(1): 55-57. (in Chinese)
TOYOTA V. PTFE labyrinth seal for wind turbines has long service-life[J]. Sealing Technology, 2010(9): 2-2.
SMALL G. Outstanding physical properties make PEEK ideal for sealing applications[J]. Sealing Technology, 2014, 2014(4): 9-12.
DOWSON P, WALKER M S, WATSON A P. Development of abradable and rub-tolerant seal materials for application in centrifugal compressors and steam turbines[J]. Sealing Technology, 2004, 2004(12): 5-10.
MA Y R, HUO W H, LIU J, et al. Investigations on the leakage performance of wear failure and anti-rubbing structure design for a labyrinth seal[J]. Chinese Journal of Turbomachinery, 2019, 61(5): 64-71. (in Chinese)
SUN D, WANG P, ZHAO H, et al. Numerical and experimental study on adaptive concentric performance of a new floating convergent pocket seal[J]. Journal of Aerospace Power, 2020, 41(3): 423270. (in Chinese)
SUN D, WANG P, WANG X D, et al. Investigation on rotordynamic characteristics and adaptive concentric performance of a new type of floating convergent pocket seal[J]. Journal of Propulsion Technology, 2021, 42(2): 406-414. (in Chinese)
京公网安备11010802044758号