本文選題：微泡發(fā)生器 + 水處理��； 參考：《昆明理工大學》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)技術給社會經濟和人們的生活帶來了翻天覆地的變化,創(chuàng)造出了更為便捷、舒適的生活方式,但與此同時也帶來了很多的環(huán)境問題,尤其是水污染問題。水是生命之源,最近幾年,水污染問題引起了中央政府及國務院的高度重視。水污染問題,已刻不容緩,勢在必行。本文針對污水處理的難題,提出了一種在國內運用較少的氣浮技術水處理方式。氣浮技術設備簡單,二次污染少,效果好,一直以來都備受人們的關注,但微泡發(fā)生器作為氣浮技術的核心部分,卻很少有人問津。本文首先對氣浮技術在國內外的發(fā)展現(xiàn)狀進行闡述,了解了當今氣浮技術的基本狀況。研究了前人研制出來的多種發(fā)泡的基本原理,經過啟發(fā)和構思,大膽假設出了一種新型的微泡發(fā)生器,針對假設,本文將對其進行系統(tǒng)的研究和分析實驗。本文對氣浮技術的基本理論進行了研究,也對微泡發(fā)生器的工作原理和機制做了闡述。經過研究與分析,得到了幾個對微泡發(fā)生器性能影響比較重要的參數(shù)。針對這些參數(shù)本文采用了FLUENT軟件進行建模仿真,對其內部的流場進行具體分析,試圖找到比較符合其在實際工況下的參數(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,逐個對其內腔直徑、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行離散化分析研究,最后再對微泡發(fā)生器性能影響較大的參數(shù)進行細化分析,得到最優(yōu)的參數(shù)。最優(yōu)參數(shù)得到后根據所得的參數(shù)再進行實際設備的加工,驗證其在實際工況下的工作狀態(tài),對其性能進行測試,進而驗證分析研究理論的正確性。本文研究項目受助于國家自然科學基金,以氣浮浮選技術為理論基礎,以水處理的效果數(shù)據為實驗參照量,對此微泡發(fā)生器設備進效果進行驗證。針對該微泡發(fā)生器的研究對于實際生產中的運用具備一定的參考價值。
[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.
【學位授予單位】：昆明理工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：X703.3

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本文編號：1991559