本文選題：SCT型單螺桿泵 + 可分割定子��； 參考：《機械設(shè)計與制造》2017年05期

【摘要】：德國Seepex公司研發(fā)的SCT(Smart Conveying Technology)型單螺桿泵是一種采用定子可分割技術(shù)的靈巧型輸送設(shè)備,對其結(jié)構(gòu)組成和工作原理進行系統(tǒng)地總結(jié)后發(fā)現(xiàn),采用定子分割技術(shù)的SCT型單螺桿泵具有輸送效率高、極小空間內(nèi)可快速安裝拆卸定子等優(yōu)點。但該設(shè)備常在低壓環(huán)境下輸送污泥,未見其在油氣混輸中的應用,且可分割的定子屬于超彈性非線性材料,因而對定子采用Mooney-Rivlin模型并通過有限元分析其在高壓下的密封效果。結(jié)果表明,在一定的內(nèi)壓下,定子與轉(zhuǎn)子接觸壓力隨著腔室間壓差值的增加幾乎呈線性增加,且接觸壓力曲線的斜率小于壓差曲線的斜率,具有較高的密封壓差,因此,可在傳統(tǒng)SCT型單螺桿泵基礎(chǔ)上進行結(jié)構(gòu)改進使其更適用于油氣混輸。
[Abstract]:The single screw pump of SCT(Smart Conveying Technology, developed by Seepex Company in Germany, is a kind of smart conveying equipment with stator divisible technology. The structure and working principle of the pump are summarized systematically. SCT single screw pump with stator partition technology has the advantages of high conveying efficiency and quick installation and disassembly of stator in minimal space. However, the equipment often conveys sludge in low pressure environment, but its application in oil and gas mixed transportation is not seen, and the divisible stator belongs to hyperelastic nonlinear material. Therefore, Mooney-Rivlin model is adopted to the stator and its sealing effect under high pressure is analyzed by finite element method. The results show that under certain internal pressure, the contact pressure between stator and rotor increases linearly with the increase of the pressure difference between the chambers, and the slope of the contact pressure curve is smaller than the slope of the pressure difference curve. It can be improved on the basis of traditional SCT single screw pump to make it more suitable for oil and gas mixed transportation.
【作者單位】： 西南石油大學石油天然氣裝備教育部重點實驗室;
【基金】：省部共建“石油天然氣裝備”教育部重點實驗室(西南石油大學)項目(2015sts03)資助
【分類號】：TE933.3;TH327

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