超(chao)(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)在(zai)(zai)液體(ti)(ti)中(zhong)(zhong)傳播,使(shi)(shi)液體(ti)(ti)和清(qing)洗(xi)(xi)(xi)(xi)槽在(zai)(zai)超(chao)(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)頻(pin)(pin)率(lv)(lv)下(xia)振(zhen)動,液體(ti)(ti)和清(qing)洗(xi)(xi)(xi)(xi)槽在(zai)(zai)自己的(de)(de)(de)(de)(de)固有頻(pin)(pin)率(lv)(lv)(即聲(sheng)(sheng)(sheng)頻(pin)(pin))下(xia)振(zhen)動,人們(men)聽到嗡(weng)嗡(weng)聲(sheng)(sheng)(sheng)。沿著清(qing)洗(xi)(xi)(xi)(xi)行業(ye)(ye)的(de)(de)(de)(de)(de)發展,越來越多的(de)(de)(de)(de)(de)行業(ye)(ye)和企業(ye)(ye)使(shi)(shi)用超(chao)(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)清(qing)洗(xi)(xi)(xi)(xi)機(ji)。依據超(chao)(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)清(qing)洗(xi)(xi)(xi)(xi)器(qi)(qi)的(de)(de)(de)(de)(de)原(yuan)(yuan)理,來源于(yu)超(chao)(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)換能(neng)器(qi)(qi)的(de)(de)(de)(de)(de)高(gao)(gao)頻(pin)(pin)率(lv)(lv)振(zhen)動數(shu)據信號根據超(chao)(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)換能(neng)器(qi)(qi)轉換為高(gao)(gao)頻(pin)(pin)率(lv)(lv)現代(dai)控制(zhi)理論(lun),散播到做為物質的(de)(de)(de)(de)(de)清(qing)理有機(ji)溶(rong)劑中(zhong)(zhong),超(chao)(chao)(chao)音波(bo)(bo)在(zai)(zai)清(qing)潔液中(zhong)(zhong)粗密地前(qian)后(hou)左(zuo)右放射(she)性(xing),使(shi)(shi)液體(ti)(ti)流(liu)動性(xing)而造成(cheng)(cheng)數(shu)十萬米的(de)(de)(de)(de)(de)直徑50-500μm的(de)(de)(de)(de)(de)細微汽(qi)泡(pao)(pao),液體(ti)(ti)中(zhong)(zhong)存(cun)有的(de)(de)(de)(de)(de)細微汽(qi)泡(pao)(pao)在(zai)(zai)音場中(zhong)(zhong)振(zhen)動。這些氣(qi)(qi)泡(pao)(pao)形成(cheng)(cheng)并生(sheng)長在(zai)(zai)超(chao)(chao)(chao)聲(sheng)(sheng)(sheng)縱向傳輸負壓(ya)區(qu),而在(zai)(zai)正(zheng)壓(ya)區(qu),當聲(sheng)(sheng)(sheng)壓(ya)達(da)到一(yi)定值(zhi)時,氣(qi)(qi)泡(pao)(pao)迅速(su)增(zeng)加,然后(hou)突然關閉(bi)。并在(zai)(zai)氣(qi)(qi)泡(pao)(pao)閉(bi)合時產生(sheng)沖擊波(bo)(bo),在(zai)(zai)其周圍產生(sheng)上千個大氣(qi)(qi)壓(ya),破壞不溶(rong)性(xing)污物而使(shi)(shi)他們(men)分散于(yu)清(qing)洗(xi)(xi)(xi)(xi)液中(zhong)(zhong),當團體(ti)(ti)粒子被油(you)污裹著而黏附在(zai)(zai)清(qing)洗(xi)(xi)(xi)(xi)件(jian)表面(mian)時,油(you)被乳化,固體(ti)(ti)粒子及(ji)脫離,從而達(da)到清(qing)洗(xi)(xi)(xi)(xi)件(jian)凈化的(de)(de)(de)(de)(de)目(mu)的(de)(de)(de)(de)(de)。在(zai)(zai)這種(zhong)被稱(cheng)(cheng)(cheng)之為“空化”效應的(de)(de)(de)(de)(de)過(guo)程中(zhong)(zhong),氣(qi)(qi)泡(pao)(pao)閉(bi)合可形成(cheng)(cheng)幾百(bai)度(du)的(de)(de)(de)(de)(de)高(gao)(gao)溫和超(chao)(chao)(chao)過(guo)1000個氣(qi)(qi)壓(ya)的(de)(de)(de)(de)(de)瞬(shun)間高(gao)(gao)壓(ya)。超(chao)(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)清(qing)洗(xi)(xi)(xi)(xi)機(ji)的(de)(de)(de)(de)(de)優點是(shi)(shi)(shi):超(chao)(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)清(qing)洗(xi)(xi)(xi)(xi)效果好,操(cao)作(zuo)簡(jian)單(dan)。人們(men)聽到的(de)(de)(de)(de)(de)聲(sheng)(sheng)(sheng)音是(shi)(shi)(shi)20-20000Hz頻(pin)(pin)率(lv)(lv)高(gao)(gao)于(yu)20000Hz的(de)(de)(de)(de)(de)聲(sheng)(sheng)(sheng)波(bo)(bo)信號,稱(cheng)(cheng)(cheng)為超(chao)(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)。一(yi)個原(yuan)(yuan)因(yin)(yin)是(shi)(shi)(shi)液體(ti)(ti)中(zhong)(zhong)的(de)(de)(de)(de)(de)局部拉應力(li)形成(cheng)(cheng)負壓(ya),壓(ya)力(li)的(de)(de)(de)(de)(de)減小(xiao)使(shi)(shi)原(yuan)(yuan)溶(rong)解氣(qi)(qi)體(ti)(ti)飽(bao)和,但從液體(ti)(ti)中(zhong)(zhong)逃(tao)逸,成(cheng)(cheng)為一(yi)個小(xiao)泡(pao)(pao);另一(yi)個原(yuan)(yuan)因(yin)(yin)是(shi)(shi)(shi)強拉應力(li)將液體(ti)(ti)撕裂(lie)成(cheng)(cheng)一(yi)個孔,稱(cheng)(cheng)(cheng)為空化。
發布時間(jian):
2020
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01
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14
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