【摘要】：本文首先對(duì)研究背景、多相分離技術(shù)、氣液固三相分離技術(shù)、流場(chǎng)測(cè)試技術(shù)以及高速攝像技術(shù)進(jìn)行了簡(jiǎn)單的介紹,并對(duì)這些技術(shù)的分離原理以及國(guó)內(nèi)外的研究現(xiàn)狀作了進(jìn)一步的說(shuō)明。簡(jiǎn)單闡述了本論文研究目的、內(nèi)容以及意義。在常規(guī)雙錐旋流器的基礎(chǔ)上,通過(guò)增加一個(gè)固相的排砂口設(shè)計(jì)出本文的氣液固三相分離旋流器。分別應(yīng)用三維建模軟件SolidWorks、網(wǎng)格劃分軟件Gambit以及計(jì)算流體力學(xué)軟件Fluent對(duì)本文旋流器的初始模型進(jìn)行建模、網(wǎng)格劃分、網(wǎng)格獨(dú)立性的檢驗(yàn)。應(yīng)用正交試驗(yàn)的方法對(duì)旋流器進(jìn)行結(jié)構(gòu)參數(shù)的優(yōu)選,利用正交試驗(yàn)研究旋流腔長(zhǎng)度、氣相溢流管伸入長(zhǎng)度、氣相溢流管直徑、大錐段錐角、,小錐段錐角以及液相出口管直徑對(duì)氣固兩相分離效率的影響規(guī)律和影響程度。同時(shí),通過(guò)對(duì)比初始結(jié)構(gòu)和優(yōu)選結(jié)構(gòu)的速度場(chǎng)、壓力損失、氣相體積分?jǐn)?shù)以及固相體積分?jǐn)?shù),證明了優(yōu)選結(jié)構(gòu)的有更好的分離性能。介紹了粒子圖像測(cè)速PIV試驗(yàn)系統(tǒng)的流程及主要試驗(yàn)設(shè)備,應(yīng)用PIV技術(shù)對(duì)優(yōu)化后的氣液固三相分離旋流器內(nèi)的三個(gè)不同截面以及三塊不同區(qū)域的速度場(chǎng)進(jìn)行了測(cè)試,重點(diǎn)研究了切向速度和軸向速度在不同流量及分流比下的變化規(guī)律,并驗(yàn)證了數(shù)值模擬的準(zhǔn)確性。介紹了高速攝像試驗(yàn)系統(tǒng)的流程及主要試驗(yàn)設(shè)備,利用高速攝像技術(shù)對(duì)優(yōu)化后的氣液固三相分離旋流器內(nèi)的氣固兩相的運(yùn)動(dòng)進(jìn)行跟蹤拍攝,清晰地看到了旋流器內(nèi)氣核的形成過(guò)程,內(nèi)旋流運(yùn)動(dòng)、氣體的分離過(guò)程以及固相顆粒的運(yùn)動(dòng)規(guī)律。
[Abstract]:In this paper, the research background, multi-phase separation technology, gas-liquid-solid three-phase separation technology, flow field testing technology and high-speed camera technology are introduced. The separation principle of these technologies and the current research situation at home and abroad are further explained. The purpose, content and significance of this paper are briefly described. Based on the conventional double cone cyclone, the gas-liquid-solid three-phase separation cyclone is designed by adding a solid sand outlet. The initial model of the hydrocyclone is modeled by the three-dimensional modeling software SolidWorks, mesh division software Gambit and the computational fluid dynamics software Fluent respectively. Orthogonal test was used to select the structure parameters of hydrocyclone. The length of swirl chamber, the length of gas overflow tube, the diameter of gas phase overflow tube, the conical angle of large cone segment, the length of gas phase overflow tube, and the conical angle of large conical section were studied by orthogonal test. The influence of conical angle of small cone segment and the diameter of liquid outlet tube on the efficiency of gas-solid two-phase separation is studied. At the same time, by comparing the velocity field, pressure loss, gas phase volume fraction and solid volume fraction of the initial structure and the optimized structure, it is proved that the optimized structure has better separation performance. The flow chart and main test equipment of particle image velocimetry PIV test system are introduced. Three different sections and three different regions of the optimized gas-liquid-solid three-phase separation cyclone are tested by PIV technology. The variation of tangential velocity and axial velocity under different flow rate and shunt ratio is studied, and the accuracy of numerical simulation is verified. The flow chart and main test equipment of the high speed camera test system are introduced. The motion of gas-solid two-phase in the optimized gas-liquid-solid three-phase separation cyclone is tracked and photographed by using high-speed camera technology. The formation process of gas nucleus, the internal swirl movement, the separation process of gas and the movement of solid particles in the hydrocyclone are clearly observed.
【學(xué)位授予單位】：東北石油大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TE937

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本文編號(hào)：2348985