【摘要】：機(jī)坪管道底部積水引起的腐蝕產(chǎn)物容易堵塞管道,影響管道正常運(yùn)行。結(jié)合計(jì)算流體力學(xué)和等效切應(yīng)力原理,運(yùn)用CFD技術(shù)對(duì)機(jī)坪管道積水驅(qū)除過(guò)程的流動(dòng)特性進(jìn)行三維數(shù)值模擬,分析大管徑工況下機(jī)坪管道底部積水的驅(qū)除狀況,得出影響積水流態(tài)的主要參數(shù)及積水能夠被完全驅(qū)除的臨界條件,揭示機(jī)坪管道積水后系統(tǒng)的流動(dòng)特性。結(jié)果表明:管道底部積水形態(tài)與油相流速、管路布置、積水量等參數(shù)有關(guān);利用管道內(nèi)部油相將底部積水完全攜帶出管道,需要增大油相流速、降低傾角、減小積水量。研究大管徑管道積水的流動(dòng)特性對(duì)機(jī)坪管道積水驅(qū)除的實(shí)際應(yīng)用具有重要的指導(dǎo)意義。
[Abstract]:Corrosion products caused by stagnant water at the bottom of the aerodrome easily clog the pipeline and affect the normal operation of the pipeline. Combined with the principle of computational fluid dynamics and equivalent shear stress, the flow characteristics of the drainage process of aeroplane pipeline are simulated by using CFD technology, and the condition of removing the water at the bottom of the aerodrome pipeline under the condition of large pipe diameter is analyzed. The main parameters affecting the flow state of water and the critical conditions under which the water can be completely removed are obtained, and the flow characteristics of the system after the draining of the aerodrome pipeline are revealed. The results show that the form of water accumulation at the bottom of the pipeline is related to the flow velocity of the oil phase, the arrangement of the pipeline, the amount of water accumulated, and so on, and the oil phase in the pipeline is used to completely carry the water from the bottom of the pipeline. It is of great significance to study the flow characteristics of hydrops in large diameter pipes for practical application.
【作者單位】： 中國(guó)石油大學(xué)(華東)石油工程學(xué)院;北京中航油工程建設(shè)有限公司;
【基金】：北京中航油工程建設(shè)有限公司科研基金項(xiàng)目“機(jī)坪管道積水驅(qū)除研究”,kyxmfb-2016-1
【分類號(hào)】：TE988.2

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