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如何選擇不同形式的聲波吹灰器聲(sheng)波(bo)吹(chui)灰器有(you)三種(zhong)形(xing)式(shi)(shi),分別(bie)是:共振腔式(shi)(shi)、膜片(pian)式(shi)(shi)、旋笛(旋轉閥)式(shi)(shi)。三種(zhong)形(xing)式(shi)(shi)發聲(sheng)器的結(jie)構和工(gong)作原理完(wan)全(quan)不同(tong)(tong)(tong),發聲(sheng)效率(lv)也(ye)不同(tong)(tong)(tong)(共振腔式(shi)(shi)最低,另兩種(zhong)較高);同(tong)(tong)(tong)一種(zhong)形(xing)式(shi)(shi)又(you)有(you)不同(tong)(tong)(tong)型號之分(發聲(sheng)器外形(xing)、尺(chi)寸、氣源管道尺(chi)寸都(dou)有(you)差異),相應(ying)聲(sheng)波(bo)強度也(ye)有(you)差別(bie);三種(zhong)形(xing)式(shi)(shi)的性能、環(huan)境適應(ying)性各有(you)利弊。 聲(sheng)波(bo)(bo)吹(chui)(chui)(chui)(chui)灰(hui)的(de)(de)機(ji)理(li),簡單(dan)說(shuo)就(jiu)(jiu)是(shi)通過聲(sheng)能(neng)的(de)(de)作(zuo)用,使聲(sheng)場(chang)中的(de)(de)質(zhi)點(灰(hui)份粒子(zi)(zi))產(chan)生受迫震蕩(dang),從(cong)而破(po)壞灰(hui)分粒子(zi)(zi)之(zhi)間(jian)的(de)(de)粘結(jie)力,使灰(hui)分粒子(zi)(zi)處(chu)于懸浮流(liu)化狀態,然后被煙氣流(liu)帶走以達到清(qing)灰(hui)目的(de)(de)。可見,決定吹(chui)(chui)(chui)(chui)灰(hui)效果(guo)的(de)(de)最主(zhu)要(yao)(yao)(yao)(yao)(yao)因(yin)素,就(jiu)(jiu)是(shi)聲(sheng)波(bo)(bo)的(de)(de)強(qiang)(qiang)度(du)(強(qiang)(qiang)度(du)越(yue)高,吹(chui)(chui)(chui)(chui)灰(hui)力度(du)就(jiu)(jiu)越(yue)大(da)、吹(chui)(chui)(chui)(chui)灰(hui)范圍(wei)也越(yue)大(da))。所(suo)以,在選擇聲(sheng)波(bo)(bo)吹(chui)(chui)(chui)(chui)灰(hui)器時(shi),首(shou)要(yao)(yao)(yao)(yao)(yao)考(kao)慮(lv)(lv)該產(chan)品(pin)的(de)(de)聲(sheng)波(bo)(bo)強(qiang)(qiang)度(du)是(shi)否滿足要(yao)(yao)(yao)(yao)(yao)求,其(qi)次還要(yao)(yao)(yao)(yao)(yao)考(kao)慮(lv)(lv)所(suo)選產(chan)品(pin)是(shi)否適(shi)合現場(chang)工(gong)(gong)況(如(ru)溫度(du)、壓力、流(liu)速流(liu)向、灰(hui)分含量及粘性、空間(jian)尺寸大(da)小等)。一般來說(shuo),選擇聲(sheng)波(bo)(bo)強(qiang)(qiang)度(du)高的(de)(de)產(chan)品(pin)總是(shi)好的(de)(de)(聲(sheng)波(bo)(bo)強(qiang)(qiang)度(du)高就(jiu)(jiu)意味著吹(chui)(chui)(chui)(chui)灰(hui)強(qiang)(qiang)度(du)高、吹(chui)(chui)(chui)(chui)灰(hui)距離遠,因(yin)而吹(chui)(chui)(chui)(chui)灰(hui)效果(guo)也會更好),但(dan)也還要(yao)(yao)(yao)(yao)(yao)綜合考(kao)慮(lv)(lv)現場(chang)工(gong)(gong)況、投資(zi)額(e)等因(yin)素。 聲波的強度,與氣源的壓力、發聲方式(壓縮氣體的壓縮勢能轉換為聲能的方式)、發聲器的技術和質量(設備本身的結構設計、形狀尺寸、加工裝配精度等)、頻率與吹灰空間的匹配度等因素有關。總的來說,共振腔式環境適應性最好,更方便滿足一些特殊工況要求(如煙氣正壓),適合于吹灰空間不大、檢修不變、灰分粘性較低、投資額較低的情況;膜片式性價比最高,適合于各種大小的吹灰空間、灰分粘性一般、投資額一般的情況;旋笛式性能最優,更適合于吹灰空間較大、灰分含量和粘性較高、投資預算較充裕的情況(大功率旋笛式吹灰器獨具聲波強度高、可調頻掃頻等優勢,吹灰效果最佳)。 上一篇空氣預熱器結皮、結塊怎么辦下一篇鍋爐吹灰方式的選擇 |