本文選題：流固耦合 + 接觸式機(jī)械密封　； 參考：《流體機(jī)械》2017年07期

【摘要】：由于沒(méi)有考慮密封環(huán)端面變形的影響,采用經(jīng)驗(yàn)公式計(jì)算接觸式機(jī)械密封端面的泄漏率存在較大的誤差。本文考慮了密封端面泄漏率受密封環(huán)端面變形的影響,采用ANSYS和MATLAB軟件對(duì)密封端面泄漏率進(jìn)行流固耦合數(shù)值求解。研究了密封介質(zhì)壓力pi、密封端面壓差Δp、彈簧比壓psp和密封端面綜合粗糙度σ對(duì)接觸式機(jī)械密封泄漏率Q的影響。通過(guò)試驗(yàn),驗(yàn)證了不同密封介質(zhì)壓力下,密封端面泄漏率數(shù)值解的正確性。結(jié)果表明,考慮密封環(huán)端面變形的數(shù)值解比經(jīng)驗(yàn)公式解更接近測(cè)量值。密封端面泄漏率隨密封端面綜合粗糙度和密封端面壓差的增大而加速增大,隨介質(zhì)壓力的增大而增大,隨彈簧比壓的增大而減速增大。本文通過(guò)對(duì)密封端面泄漏率數(shù)值求解,分析泄漏率的影響因素,以期為完善接觸式機(jī)械密封失效機(jī)理起到一定的指導(dǎo)意義。
[Abstract]:Because the effect of the deformation of the end face of the seal ring is not considered, there is a big error in calculating the leakage rate of the contact mechanical seal end face by using the empirical formula. In this paper, the leakage rate of the seal end face is affected by the deformation of the seal ring end face, and the fluid-solid coupling numerical solution of the seal end face leakage rate is carried out by using ANSYS and MATLAB software. The effects of sealing medium pressure, seal end surface pressure difference 螖 p, spring specific pressure psp and seal end face comprehensive roughness 蟽 on the leakage rate Q of contact mechanical seal are studied. The experimental results show that the numerical solution of seal face leakage rate is correct under different pressure of sealing medium. The results show that the numerical solution considering the end surface deformation of the seal ring is closer to the measured value than the empirical formula. The leakage rate of the seal end surface increases with the increase of the comprehensive roughness of the seal face and the pressure difference of the end face of the seal, increases with the increase of the pressure of the medium, and increases with the increase of the specific pressure of the spring. Through the numerical solution of the leakage rate of the seal end face, the factors affecting the leakage rate are analyzed in order to play a guiding role in perfecting the failure mechanism of the contact mechanical seal.
【作者單位】： 北京化工大學(xué);
【基金】：國(guó)家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃(973)項(xiàng)目(2012CB026000)
【分類(lèi)號(hào)】：TH136

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 王彬;程e，

本文編號(hào)：2015890