跳到主要內容

臺灣博碩士論文加值系統

(44.210.99.209) 您好!臺灣時間:2024/04/15 13:58
字體大小: 字級放大   字級縮小   預設字形  
回查詢結果 :::

詳目顯示

我願授權國圖
: 
twitterline
研究生:李佳駿
研究生(外文):Gae-Jin Lee
論文名稱:脈衝袋濾系統之設計參數研究
論文名稱(外文):A Study of Design Parameters of a Pulse Jet Fabric Filtration System
指導教授:蔡春進蔡春進引用關係
指導教授(外文):Chuen-Jinn Tsai
學位類別:碩士
校院名稱:國立交通大學
系所名稱:環境工程研究所
學門:工程學門
學類:環境工程學類
論文種類:學術論文
論文出版年:1994
畢業學年度:82
語文別:英文
論文頁數:127
中文關鍵詞:濾袋屋袋濾系統過濾脈衝洗袋空氣污染控制
外文關鍵詞:baghousefabric filtration systemfiltrationpulse jet
相關次數:
  • 被引用被引用:6
  • 點閱點閱:200
  • 評分評分:
  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:0
脈衝袋濾系統是各型袋濾器的主流。在設計參數的研究上,需同時考慮濾
布過濾及脈衝洗袋兩方面的問題。本研究以壓力降、過濾效率及脈衝洗袋
效率為重點進行實驗,來探討脈衝袋濾系統之設計參數。由實驗結果顯示
,在比較高的過濾速度之下,粉塵餅有被壓縮的現象,因此過率速度的設
計不宜太高。預測壓力降的主要參數 K2(比粉塵阻抗係數)的實驗值在
本研究中發現與 Williams et al. 所預測值相近。在過濾效率方面,不
論過濾速度與濾布種類為何,總過濾效率的值發現均幾乎可達100%,且其
中以0.1μm粒徑大小的粉塵的穿透率為最高。這是因為在過濾過程中,
剛開始的過濾是由濾布所控制,而在有效過濾期之後則由粉塵餅所控制的
緣故。在洗袋效率方面,本研究發現粉塵附著密度較大者,粉塵較容易被
去除。在相同壓力脈衝之下,尖峰靜壓較大者,洗袋效率較佳。最後,根
據當粉塵所受拉曳力與黏著力的平衡關係,本研究提出一個預測洗袋效率
的方法,結果發現脈衝洗袋的理論值與實驗值頗能吻合。
The pulse jet fabric filtration system is the main stream among
various fabric filtration systems. In the design of a pulse
jet fabric filtration system, both fabric filtration and pulse
jet cleaning must be considered. This study has investigated
pressure drop, filtration efficiency, and pulse jet cleaning
efficiency of a pulse jet fabric filtration system in the
laboratory. According to the experimental results, the dust
cake has been found to be compressed substantially when
filtration velocity is high. In order to avoid "blinding" of
the fabric, the restriction of the filtration velocity below a
certain value is important. The K2 (specific dust resistance
coefficient) is the main parameter to predict pressure drop.
Experimental data of K2 has been found to fit well with the
equation by Williams et al. Total filtration efficiency has
been found to reach nearly 100% within the first minute of
filtration. Particle close to 0.1μm have been found to have
the highest penetration regardless of the type of fabrics and
filtration velocity. This is because that the characteristic
of fabric dominates the initial period of filtration, and the
dust cake dominates the filtration process afterwards. In the
aspect of pulse jet cleaning efficiency, it has been found that
dust particles are removed ea er when the dust areal density
is greater. At the same pressur impulse, the pulse jet
cleaning effienciency has been found to be higher when the peak
static pressure is higher. A model has been developed to
predict the pulse jet cleaning efficiency by considering the
balance between the adhesion force and drag force on particles.
The theoretical results of pulse jet cleaning efficiency have
been found to fit well with the experimental data.
QRCODE
 
 
 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                               
第一頁 上一頁 下一頁 最後一頁 top