電氣石與銅鋅合金在水中的協(xié)同機制研究畢業(yè)論文-全文預覽
【正文】 響。水垢形成的動力學過程：首先是由于溶液中陰、陽離子間相互作用，形成離子對。在一定溫度下，晶型之間可以互相轉(zhuǎn)化，并且它們的物理、化學和光學性質(zhì)稍有不同[3]。 國內(nèi)外研究現(xiàn)狀在鍋爐循環(huán)水中，：垢類晶型種類顏色性質(zhì)碳酸鹽水垢霞石、方解石白色方解石堅硬硫酸鹽水垢硬石膏、單硅鈣石黃白色或白色堅硬、致密硅酸鹽水垢硅灰石灰白色堅硬、致密鐵垢磁鐵垢或赤鐵垢灰黑色，磚紅色磁鐵垢疏松，赤鐵垢緊密油垢_______黑色柔軟或緊密以碳酸鈣為例，其晶型分類有球霰石型、文石型和方解石型三種同質(zhì)異晶體。因此在能源形勢緊張以及節(jié)能降耗背景下，開發(fā)一種綠色環(huán)保的阻垢技術(shù)對提高生活水平促進經(jīng)濟增長具有重大意義。全球每年用于清洗垢和結(jié)垢引起熱損失消耗方面的資金達百億美元。河 北 工 業(yè) 大 學畢 業(yè) 論 文作 者： 王輝 學 號： 111967 學 院： 材料科學與工程學院 系(專業(yè))： 功能材料 題 目：電氣石與銅鋅合金在水中的協(xié)同機制研究指導者： 孟軍平 副研究員 評閱者： 2015年 6月 12日畢業(yè)設計（論文）中文摘要 電氣石與銅鋅合金在水中協(xié)同機制研究摘要： 本課題將銅鋅合金和電氣石與水作用，系統(tǒng)研究銅鋅合金和電氣石對水的pH、表面張力、電極電位、電導率等指標的變化規(guī)律；采用鍋爐模擬裝置，研究經(jīng)銅鋅合金和電氣石處理的水結(jié)垢特點；利用SEM、XRD等手段研究銅鋅合金與電氣石對水垢形成的微觀影響機制。關(guān)鍵詞：銅鋅合金 電氣石 水垢 碳酸鈣 晶體結(jié)構(gòu) 畢業(yè)設計（論文）外文摘要Title Study on the synergistic reaction of tourmaline and copper zinc alloy in WaterAbstractIn this paper, the water was treated by copperzinc alloy and tourmaline ball. The change of water parameters contain pH values, surface tension, electrode potential and conductivity was studied. The scaling characteristics of the water treated by the copperzinc alloy and tourmaline were researched by the minemade boiler simulator. The microscopic influence mechanism of scale formation was explored by SEM,XRD and etc. The results showed that the pH values of water rose from to , the surface tension was reduced to mN / m from mN / m and the electrode potential was dropped from mV to mV after treated by 10 g copperzinc alloy in 800 mL solution of 500 mg/L [Ca2+][HCO3]. Copperzinc alloy can make Zn2+ of dissolution to change the direction of crystal growth by forming the tiny primary battery reaction. The polarity of the tourmaline can electrolysis of water molecules and reduce the association degree of water molecules. When both synergies, tourmaline stimulate water activity, strengthen Zn ions stripping effect, and strengthen copperzinc alloy galvanic cell reaction. The fouling crystal was converted to aragonite calcium carbonate easily after treated by the copperzinc alloy and tourmaline ball.Key words：copperzinc alloy tourmaline scale calcium carbonate crystal structure 目錄1 緒論..............................................................1................................................1................................................1...........................................1.............................................2.........................................4...........................................6......................................................82 實驗與方法........................................................8..................................................8......................................................9.....................................................10....................................10............................10，確定實驗最佳條件..........................10..................................113 實驗結(jié)果與數(shù)據(jù)分析...............................................11.....................................11.......................13......................
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