本文選題：微泡發(fā)生器 + 水處理　； 參考：《昆明理工大學(xué)》2015年碩士論文

【摘要】：隨著現(xiàn)代工業(yè)的逐步發(fā)展,工業(yè)技術(shù)給社會(huì)經(jīng)濟(jì)和人們的生活帶來(lái)了翻天覆地的變化,創(chuàng)造出了更為便捷、舒適的生活方式,但與此同時(shí)也帶來(lái)了很多的環(huán)境問(wèn)題,尤其是水污染問(wèn)題。水是生命之源,最近幾年,水污染問(wèn)題引起了中央政府及國(guó)務(wù)院的高度重視。水污染問(wèn)題,已刻不容緩,勢(shì)在必行。本文針對(duì)污水處理的難題,提出了一種在國(guó)內(nèi)運(yùn)用較少的氣浮技術(shù)水處理方式。氣浮技術(shù)設(shè)備簡(jiǎn)單,二次污染少,效果好,一直以來(lái)都備受人們的關(guān)注,但微泡發(fā)生器作為氣浮技術(shù)的核心部分,卻很少有人問(wèn)津。本文首先對(duì)氣浮技術(shù)在國(guó)內(nèi)外的發(fā)展現(xiàn)狀進(jìn)行闡述,了解了當(dāng)今氣浮技術(shù)的基本狀況。研究了前人研制出來(lái)的多種發(fā)泡的基本原理,經(jīng)過(guò)啟發(fā)和構(gòu)思,大膽假設(shè)出了一種新型的微泡發(fā)生器,針對(duì)假設(shè),本文將對(duì)其進(jìn)行系統(tǒng)的研究和分析實(shí)驗(yàn)。本文對(duì)氣浮技術(shù)的基本理論進(jìn)行了研究,也對(duì)微泡發(fā)生器的工作原理和機(jī)制做了闡述。經(jīng)過(guò)研究與分析,得到了幾個(gè)對(duì)微泡發(fā)生器性能影響比較重要的參數(shù)。針對(duì)這些參數(shù)本文采用了FLUENT軟件進(jìn)行建模仿真,對(duì)其內(nèi)部的流場(chǎng)進(jìn)行具體分析,試圖找到比較符合其在實(shí)際工況下的參數(shù)值。在仿真中由于影響其性能參數(shù)較多,本文遵循單一變量的原則,逐個(gè)對(duì)其內(nèi)腔直徑、空氣入口直徑、多相流混合出口直徑和錐形腔直徑與角度進(jìn)行離散化分析研究,最后再對(duì)微泡發(fā)生器性能影響較大的參數(shù)進(jìn)行細(xì)化分析,得到最優(yōu)的參數(shù)。最優(yōu)參數(shù)得到后根據(jù)所得的參數(shù)再進(jìn)行實(shí)際設(shè)備的加工,驗(yàn)證其在實(shí)際工況下的工作狀態(tài),對(duì)其性能進(jìn)行測(cè)試,進(jìn)而驗(yàn)證分析研究理論的正確性。本文研究項(xiàng)目受助于國(guó)家自然科學(xué)基金,以氣浮浮選技術(shù)為理論基礎(chǔ),以水處理的效果數(shù)據(jù)為實(shí)驗(yàn)參照量,對(duì)此微泡發(fā)生器設(shè)備進(jìn)效果進(jìn)行驗(yàn)證。針對(duì)該微泡發(fā)生器的研究對(duì)于實(shí)際生產(chǎn)中的運(yùn)用具備一定的參考價(jià)值。
[Abstract]:With the gradual development of modern industry, industrial technology has brought tremendous changes to social economy and people's lives, created a more convenient and comfortable way of life, but also brought a lot of environmental problems at the same time. Water pollution in particular. Water is the source of life. In recent years, water pollution has attracted great attention of the central government and the State Council. The problem of water pollution is urgent and imperative. Aiming at the difficult problem of sewage treatment, this paper puts forward a water treatment method which is less used in domestic air floatation technology. The air floatation technology has been paid more attention for its simple equipment, less secondary pollution and good effect. However, as the core part of the air floatation technology, the micro bubble generator is seldom concerned. In this paper, the development of air flotation technology at home and abroad is described, and the basic status of air floatation technology is understood. This paper studies the basic principle of many kinds of foaming developed by predecessors. Through inspiration and conception, a new type of microbubble generator is boldly hypothesized. Aiming at the hypothesis, this paper will carry out systematic research and analysis experiment on it. In this paper, the basic theory of air floatation technology is studied, and the working principle and mechanism of micro bubble generator are also described. Several important parameters which affect the performance of the microbubble generator are obtained through research and analysis. In this paper, the FLUENT software is used to model and simulate these parameters, and the flow field inside them is analyzed in order to find the parameters which accord with the actual working conditions. In the simulation, due to the large number of performance parameters, following the principle of a single variable, the diameter of the inner cavity, the air inlet diameter, the mixed outlet diameter of the multiphase flow and the diameter and angle of the conical cavity are discretized one by one. Finally, the parameters of the microbubble generator are analyzed in detail, and the optimal parameters are obtained. After the optimal parameters are obtained, the actual equipment is processed according to the obtained parameters, the working state of the equipment is verified under the actual working conditions, its performance is tested, and the correctness of the analysis and research theory is verified. The research project is supported by the National Natural Science Foundation of China. Based on the flotation technology and the experimental data of water treatment, the effect of the micro bubble generator is verified. The research on the micro-bubble generator has certain reference value for practical application.
【學(xué)位授予單位】：昆明理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：X703.3

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