【摘要】：石油工業(yè)中成品油罐內(nèi)會(huì)產(chǎn)生罐底油泥且逐漸累積,數(shù)量較大。不加以合理的處理,會(huì)影響油品質(zhì)量,導(dǎo)致經(jīng)濟(jì)效益降低和環(huán)境污染。目前采用單錐旋流分離工藝對(duì)原油罐油泥分離有了一定的研究,但旋流分離堆積于成品油罐底含細(xì)小顆粒的油漿仍處于探索與發(fā)展階段。因此對(duì)細(xì)微顆粒與油品的旋流分離研究成為了具有潛力的研究方向。本研究在對(duì)成品油罐內(nèi)的油泥進(jìn)行顆粒粒度實(shí)驗(yàn)測(cè)定的基礎(chǔ)上,明確了旋流分離設(shè)備的類型。利用仿真軟件進(jìn)行數(shù)值模擬研究,在驗(yàn)證模型正確性的基礎(chǔ)上重點(diǎn)研究了雙錐旋流分離油泥的流場(chǎng)特點(diǎn),雙錐結(jié)構(gòu)的變化對(duì)流場(chǎng)特點(diǎn)的影響及其原因。通過(guò)研究發(fā)現(xiàn),旋流設(shè)備的大小兩錐段的結(jié)構(gòu)特點(diǎn)與速度場(chǎng),介質(zhì)分布及壓力分布有一定的規(guī)律關(guān)系,提出了針對(duì)細(xì)微顆粒與成品油分離時(shí)雙錐結(jié)構(gòu)的合理建議。最后,綜合考慮了旋流分離工藝的結(jié)構(gòu)工藝參數(shù)、介質(zhì)參數(shù)、操作參數(shù)而采用正交試驗(yàn)手段對(duì)兩組不同角錐比的旋流分離工藝進(jìn)行64組試驗(yàn)研究,得到了不同分離指標(biāo)下的較優(yōu)工藝參數(shù)組合及各個(gè)工藝參數(shù)對(duì)指標(biāo)影響的強(qiáng)弱關(guān)系。本文通過(guò)對(duì)成品油罐底油泥的旋流分離的研究,為石油工業(yè)提供了新的思路與工藝組合方案,這將為石油工業(yè)中能源的節(jié)約,經(jīng)濟(jì)效益的提高做出一定的貢獻(xiàn)。
[Abstract]:In the petroleum industry, the sludge at the bottom of the tank will be produced and accumulated gradually, and the quantity will be large. Without reasonable treatment, the quality of oil products will be affected, resulting in the reduction of economic benefits and environmental pollution. At present, the single cone swirl separation process has been used to study the oil sludge separation of the original oil tank, but the slurry with fine particles in the bottom of the finished oil tank is still in the stage of exploration and development. Therefore, the swirl separation of fine particles and oil products has become a potential research direction. On the basis of the particle size measurement of the sludge in the finished oil tank, the type of cyclone separation equipment was determined. On the basis of the correctness of the model, the characteristics of the flow field and the influence of the variation of the two-cone structure on the flow field of the oil sludge separated by the two-cone swirl flow and the reasons for the variation of the two-cone structure are studied by using the simulation software. It is found that the structure characteristics of the two cones in the swirl equipment are related to the velocity field, the distribution of the medium and the pressure distribution, and the reasonable suggestions for the double cone structure when the fine particles are separated from the refined oil are put forward. Finally, 64 groups of swirl separation process with different angle cone ratio were studied by orthogonal test, considering the structure parameters, medium parameters and operation parameters of swirl separation process. The optimal combination of process parameters under different separation indexes and the relationship between the influence of each process parameter on the index were obtained. In this paper, a new idea and process combination scheme is provided for the petroleum industry through the study of the swirl separation of the oil sludge at the bottom of the finished oil tank, which will make a certain contribution to the saving of energy and the improvement of the economic benefit in the petroleum industry.
【學(xué)位授予單位】：中國(guó)民航大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TE972

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本文編號(hào)：2143589