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研究生:徐至謙
研究生(外文):Jarrow Hsu
論文名稱:脈衝賦能法在靜電集塵器上的應用
論文名稱(外文):The Efficiency Improvement of EP
指導教授:邱政勳邱政勳引用關係許毅然許毅然引用關係
指導教授(外文):Jenq-Shing ChiouYih-Ran Shen
學位類別:碩士
校院名稱:國立成功大學
系所名稱:機械工程學系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:1999
畢業學年度:87
語文別:中文
論文頁數:101
中文關鍵詞:靜電集塵器脈衝賦能法集塵效率
外文關鍵詞:Electrostatic PrecipitationImpulse EnergizationPrecipitation Efficiency
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現今的火力發電廠及其他燃燒重油或煤炭的工廠,大多仰賴靜電集塵的方法來減少廢氣中的懸浮微粒。然而靜電集塵器的集塵效率往往會隨著使用時間的增加而降低,除了敲擊系統規律的震落積灰之外;也必須在每次工廠停工時將集塵器作較徹底的清洗,以恢復集塵效率。
假若靜電集塵器的效率隨使用時間的加長而降低得太快,為了使排放至大氣的懸浮微粒不超過新的環保標準;工廠或電廠常常得作不必要的停工維修,或者必須作運轉的降載,此兩者皆會嚴重影響它們的運轉效率。
另外,由於環保標準趨於嚴苛,目前正在使用中的靜電集塵系統勢必面臨重新改造翻新(Retrofitting)或完全更新的命運。為了避免因為排氣標準的限制而降低工廠或電廠的運轉效率,以及進一步地增進現有系統之集塵效率以符合未來更嚴苛的排放標準;本研究乃利用脈衝賦能法來開發更有效率及更省電的靜電集塵器,利用此技術將可對現有集塵器的控制設備加以改造,達到省電以及提升集塵效率之目的。

Electrostatic Precipitation(EP,or ESP)is a very effective way in removing the particulate from air streams. Thus, the EP technique has become a very popular gas cleaning method for many industrial plants which burn coals and other fossil fuels.
The performance of any EP unit will gradually decline as its service time prolong, therefore, the thoroughly clean-up on electrodes is essential during the plants’ maintenance interval. However, if the decline rate becomes too fast, the plant may have to reduce its load or completely stop its operation in order to avoid the violation of pollutant emission standard. Both the load-shredding and the irregular interruption on plant’s operation will certainly cause adverse operational efficiency and great economic impact.
More stringent emission standards in the future regulation will force the existing EP systems to either be retrofitted or replaced by a newer system. In order to improve the plant’s availability and comply with the future emission standards, the impulse energization method is theorectically and expermentally studied in this paper. The developed new technology will be used to implement the existing EP units. The modified EP system is expected to use the less operation energy and provide a much better dust-collection efficiency and with less decline rate.

中文摘要 I
英文摘要 II
誌謝 III
目錄IV
表目錄 VII
圖目錄 VIII
第一章 緒論 1
1-1 前言 1
1-2 脈衝賦能法概述 2
1-3 靜電集塵器的發展歷史 6
1-4 文獻回顧8
1-4-1 靜電集塵器 8
1-4-2 脈衝賦能法15
1-5 本文架構17
第二章 靜電集塵器介紹19
2-1 靜電集塵的原理24
2-1-1 電極的放電24
2-1-2 懸浮微粒的荷電27
2-1-3 集塵電極捕集原理28
2-2 裝置與結構30
2-2-1 集塵室30
2-2-2 電力與儀控系統33
2-2-3 收集處理機構35
2-3 影響集塵效率的因素36
2-3-1 逆電暈(Back Corona)現象36
2-3-2 再回流(Reentrainment)的問題40
2-3-3 跳火花(Sparkover) 42
2-4 如何維持集塵器的高效率44
2-4-1 高電壓的分段化45
2-4-2 電阻調節法46
2-4-3 脈衝賦能法47
2-5 靜電集塵器的優缺點50
第三章 脈衝賦能實驗設備與方法56
3-1 前言56
3-2 實驗設備介紹56
3-2-1 風洞的設置56
3-2-2 壓縮機58
3-2-3 電壓控制器59
3-2-4 脈衝電路的設計59
3-2-5 示波器67
3-2-6 電子秤68
3-2-7 瓦特計69
3-3 實驗步驟與方法70
3-4 實驗參數71
3-5 實驗心得與討論73
第四章 實驗結果與討論75
4-1 實驗結果75
4-2 討論85
第五章 結論88
5-1 綜合結論88
5-2 未來展望與建議88
參考文獻91
附錄A Deutsch-Anderson效率公式介紹96
附錄B 其他集塵裝置簡述98

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