臺灣能源期刊發行
- 創刊日期：
102年11月30日
- 發行所：
經濟部能源署
- 發行人：
游振偉
- 地址：
台北市復興北路2號13樓
- 電話：
02-2772-1370
- 執行單位：
財團法人工業技術研究院
- 地址：
新竹縣竹東鎮中興路四段195號26館
- 服務專線：
03-5916006
- 服務信箱：
- 總編輯：
王漢英胡均立
- 顧問：
王運銘童遷祥王人謙
- 執行主編：
劉子衙陳志臣
- 編輯委員：
方良吉王錫福朱家齊李堅明李叢禎林師模馬鴻文陳希立廖芳玲廖肇寧劉文獻蕭志同顧洋(依筆畫順序排列)
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臺灣能源期刊論文全文
臺灣能源期刊第9卷第2期內容
出刊日期：June, 2022
- 題目
- 提升靜電集塵器效率達到粒狀污染物個位數排放
- Title
- Upgrading ESP Efficiency to Reach Single Digit Particulate Emission
- 作者
- 蔡東昇、徐榮彬、許文馨
- Authors
- Tung-Sheng Tsai, Jung-Pin Hsu, Wen-Hsin Hsu
- 摘要
- 在目前臺灣普遍關注空污議題的社會氛圍下，火力發電廠不僅須符合法令規定，更需進一步自 我要求降低各項排放指標數值，大型電廠如臺中火力發電廠即著手升級「空氣品質控制系統」(Air Quality Control System, AQCS)。AQCS改善計畫的範圍較廣含括脫硝、除塵及除硫等相關設備，因 此金額龐大，從規劃到完成改善至少需2至3年。本文則針對在AQCS執行完成前及機組除役前的過 渡期裡，適合作為電廠自主持續改善排放的措施：提升既有靜電集塵器之集塵效率。其針對單一設 備做改善，具有投資金額較低且工期較短的優點。本文將介紹常見的ESP (Electrostatic Precipitator, ESP)改善策略：一、三相高頻變壓整流器(High Frequency Transformer and Rectifier, HFTR)。二、硬 管式極線(Rigid Discharge Electrode, RDE)，並提供兩個改善實例採用不同改善方式之評估考量及改 善成果。協和電廠3、4號機採用方式一，在ESP的所有區室更換高頻變壓整流器後，ESP出口粒狀 污染物排放小於10 mg/Nm3。而在PM2.5濃度也降低六成以上。臺中電廠5到8號機則是採用方式一和 二，在ESP的第一、二區更換RDE與HFTR，改善後其ESP出口粒狀污染物排放亦小於10 mg/Nm3。
- 關鍵字
- 靜電集塵器，細懸浮微粒，粒狀物排放，高頻變壓器
- Abatract
- People’s growing concern of air quality has led coal-fired power plants in Taiwan to strive for lower air pollutant emission, in addition to comply with stringent air pollution regulation. For example, Taichung Power Plant, with 10 units totaling up to 5,500MW capacity, has set forth to improve the Air Quality Control System (AQCS). The plan involves a wide scope from de-NOx, de-SOx, to dedusting related systems and demands astronomical investment, therefore, taking as long as up to 2 to 3 years to complete feasibility study, budget application, and bidding processes. This study introduces a relatively smallscale and economical strategy, focusing on improving the particle emission by upgrading electrostatic precipitator (ESP) with 1. High frequency transformer and rectifier (HFTR) and 2. Rigid discharge electrode (RDE). It requires smaller investment, shorter installation time and provides instant improvement, which is recommended for large units undergoing the long process of AQCS plan, or for aging units to be decommissioned in the upcoming years with few disposable fund for equipment upgrade. 2 case studies were presented in this study. Unit 3 and 4 in Hsieh-Ho Power Plant underwent the upgrade of HFTR in all ESP fields. Its particle emission at ESP outlet was reduced to below 10 mg/Nm3, while PM2.5 was measured 60% less than before. Taichung Power Plant executed ESP upgrade in 1st and 2nd rows of ESP fields with RDE and HFTR. Its emission also achieved below 10 mg/Nm3 at ESP outlet.
- Keywords
- Electrostatic Precipitator, PM2.5, Particle emission, High Frequency Transformer and Rectifier