XDCD型低壓脈沖袋式除塵器是一種采用脈沖清灰方式的小型脈沖袋式除塵器,它具有結構緊湊,清灰方式簡單可靠,更換濾袋方便,收塵效率高等優點,廣泛應用于冶金、化工、建材等工礦企業。
工作原理
含塵氣(qi)(qi)(qi)(qi)體(ti)(ti)(ti)由(you)進(jin)(jin)氣(qi)(qi)(qi)(qi)口(kou)進(jin)(jin)入(ru)箱體(ti)(ti)(ti),通過濾(lv)(lv)袋得以凈化(hua),凈氣(qi)(qi)(qi)(qi)經文氏(shi)管(guan)(guan)進(jin)(jin)入(ru)上(shang)箱體(ti)(ti)(ti),從(cong)排氣(qi)(qi)(qi)(qi)口(kou)排出(chu)(chu),濾(lv)(lv)袋外(wai)表面粉塵不斷增(zeng)加,使(shi)除塵器阻力(li)增(zeng)大,為是(shi)設備阻力(li)維持(chi)在(zai)_范(fan)圍,要_濾(lv)(lv)袋表面的灰塵,清灰時由(you)控制儀定期(qi)順序觸(chu)發各控制閥,開啟電(dian)磁脈(mo)沖(chong)(chong)閥,使(shi)氣(qi)(qi)(qi)(qi)包內壓縮空(kong)氣(qi)(qi)(qi)(qi)由(you)噴吹(chui)管(guan)(guan)上(shang)的噴追噴出(chu)(chu)(一次風),通過文氏(shi)管(guan)(guan)誘導數倍于一次風的周圍空(kong)氣(qi)(qi)(qi)(qi)(二(er)次風)進(jin)(jin)入(ru)濾(lv)(lv)袋,在(zai)瞬間(jian)(jian)產生振動波與(yu)逆向(xiang)氣(qi)(qi)(qi)(qi)流,抖下(xia)粉塵,落入(ru)下(xia)箱體(ti)(ti)(ti),經卸灰閥排出(chu)(chu)機體(ti)(ti)(ti)。在(zai)清灰過程中,每(mei)次噴吹(chui)的時間(jian)(jian)稱(cheng)(cheng)脈(mo)沖(chong)(chong)寬(kuan)度,一般僅0.1-0.2秒,全(quan)部(bu)濾(lv)(lv)袋完成一個(ge)清灰循環的時間(jian)(jian)稱(cheng)(cheng)為脈(mo)沖(chong)(chong)周期(qi)。