超(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)在液(ye)(ye)體(ti)(ti)(ti)(ti)中(zhong)(zhong)(zhong)傳播(bo),使(shi)液(ye)(ye)體(ti)(ti)(ti)(ti)和(he)(he)(he)清(qing)(qing)(qing)(qing)洗槽在超(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)頻(pin)率(lv)(lv)下(xia)振動,液(ye)(ye)體(ti)(ti)(ti)(ti)和(he)(he)(he)清(qing)(qing)(qing)(qing)洗槽在自(zi)己的(de)(de)(de)(de)(de)(de)(de)固有頻(pin)率(lv)(lv)(即(ji)聲(sheng)(sheng)(sheng)頻(pin))下(xia)振動,人(ren)(ren)們(men)聽到(dao)(dao)嗡嗡聲(sheng)(sheng)(sheng)。沿著(zhu)清(qing)(qing)(qing)(qing)洗行(xing)業的(de)(de)(de)(de)(de)(de)(de)發展,越來越多的(de)(de)(de)(de)(de)(de)(de)行(xing)業和(he)(he)(he)企業使(shi)用超(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)清(qing)(qing)(qing)(qing)洗機(ji)。依據超(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)清(qing)(qing)(qing)(qing)洗器的(de)(de)(de)(de)(de)(de)(de)原(yuan)理(li),來源于超(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)換能(neng)器的(de)(de)(de)(de)(de)(de)(de)高(gao)頻(pin)率(lv)(lv)振動數(shu)據信(xin)號根(gen)據超(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)換能(neng)器轉換為高(gao)頻(pin)率(lv)(lv)現代控制理(li)論(lun),散(san)播(bo)到(dao)(dao)做為物質的(de)(de)(de)(de)(de)(de)(de)清(qing)(qing)(qing)(qing)理(li)有機(ji)溶劑中(zhong)(zhong)(zhong),超(chao)(chao)音(yin)(yin)波(bo)(bo)在清(qing)(qing)(qing)(qing)潔液(ye)(ye)中(zhong)(zhong)(zhong)粗密地前后左(zuo)右放射性(xing),使(shi)液(ye)(ye)體(ti)(ti)(ti)(ti)流動性(xing)而(er)造成數(shu)十(shi)萬米(mi)的(de)(de)(de)(de)(de)(de)(de)直徑50-500μm的(de)(de)(de)(de)(de)(de)(de)細微汽(qi)泡(pao)(pao),液(ye)(ye)體(ti)(ti)(ti)(ti)中(zhong)(zhong)(zhong)存有的(de)(de)(de)(de)(de)(de)(de)細微汽(qi)泡(pao)(pao)在音(yin)(yin)場(chang)中(zhong)(zhong)(zhong)振動。這些氣(qi)(qi)(qi)泡(pao)(pao)形成并(bing)生長在超(chao)(chao)聲(sheng)(sheng)(sheng)縱向傳輸負壓區,而(er)在正壓區,當聲(sheng)(sheng)(sheng)壓達(da)到(dao)(dao)一定(ding)值時(shi),氣(qi)(qi)(qi)泡(pao)(pao)迅速增(zeng)加,然(ran)后突然(ran)關(guan)閉。并(bing)在氣(qi)(qi)(qi)泡(pao)(pao)閉合(he)時(shi)產生沖擊波(bo)(bo),在其周(zhou)圍產生上千(qian)個(ge)(ge)大氣(qi)(qi)(qi)壓,破(po)壞不溶性(xing)污物而(er)使(shi)他們(men)分散(san)于清(qing)(qing)(qing)(qing)洗液(ye)(ye)中(zhong)(zhong)(zhong),當團體(ti)(ti)(ti)(ti)粒(li)子被(bei)油污裹著(zhu)而(er)黏附在清(qing)(qing)(qing)(qing)洗件(jian)(jian)表面時(shi),油被(bei)乳化,固體(ti)(ti)(ti)(ti)粒(li)子及脫離,從而(er)達(da)到(dao)(dao)清(qing)(qing)(qing)(qing)洗件(jian)(jian)凈化的(de)(de)(de)(de)(de)(de)(de)目的(de)(de)(de)(de)(de)(de)(de)。在這種被(bei)稱之為“空化”效(xiao)應的(de)(de)(de)(de)(de)(de)(de)過程(cheng)中(zhong)(zhong)(zhong),氣(qi)(qi)(qi)泡(pao)(pao)閉合(he)可形成幾百度的(de)(de)(de)(de)(de)(de)(de)高(gao)溫(wen)和(he)(he)(he)超(chao)(chao)過1000個(ge)(ge)氣(qi)(qi)(qi)壓的(de)(de)(de)(de)(de)(de)(de)瞬間(jian)高(gao)壓。超(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)清(qing)(qing)(qing)(qing)洗機(ji)的(de)(de)(de)(de)(de)(de)(de)優點是(shi)(shi):超(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)清(qing)(qing)(qing)(qing)洗效(xiao)果好,操作簡(jian)單。人(ren)(ren)們(men)聽到(dao)(dao)的(de)(de)(de)(de)(de)(de)(de)聲(sheng)(sheng)(sheng)音(yin)(yin)是(shi)(shi)20-20000Hz頻(pin)率(lv)(lv)高(gao)于20000Hz的(de)(de)(de)(de)(de)(de)(de)聲(sheng)(sheng)(sheng)波(bo)(bo)信(xin)號,稱為超(chao)(chao)聲(sheng)(sheng)(sheng)波(bo)(bo)。一個(ge)(ge)原(yuan)因(yin)是(shi)(shi)液(ye)(ye)體(ti)(ti)(ti)(ti)中(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)局部拉應力形成負壓,壓力的(de)(de)(de)(de)(de)(de)(de)減(jian)小使(shi)原(yuan)溶解氣(qi)(qi)(qi)體(ti)(ti)(ti)(ti)飽(bao)和(he)(he)(he),但(dan)從液(ye)(ye)體(ti)(ti)(ti)(ti)中(zhong)(zhong)(zhong)逃(tao)逸(yi),成為一個(ge)(ge)小泡(pao)(pao);另(ling)一個(ge)(ge)原(yuan)因(yin)是(shi)(shi)強拉應力將液(ye)(ye)體(ti)(ti)(ti)(ti)撕裂成一個(ge)(ge)孔,稱為空化。
發布時間:
2020
-
01
-
14
瀏(liu)覽(lan)次數:223