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噴嘴的應用領域較多,可以說各行各業都要用到噴嘴,如何選擇正確的噴嘴,對提高工作效率會起到很大的作用,下面介紹噴吲的選型,以便于大家逐步認識噴嘴: 具有一(yi)定沖擊力的(de)噴嘴(zui)(zui)(zui)(zui)(zui)(zui)應(ying)選用小角度噴嘴(zui)(zui)(zui)(zui)(zui)(zui),以液柱(zhu)流(即(ji)射流)為最佳;扇形噴嘴(zui)(zui)(zui)(zui)(zui)(zui)適(shi)用于(yu)清洗、脫脂、冷卻(que)等方(fang)面,錐形噴嘴(zui)(zui)(zui)(zui)(zui)(zui)適(shi)用于(yu)漂淋、表(biao)層、磷化、加濕、除塵(chen) 等方(fang)面;在儲漆缸(gang)、槽(cao)體(ti)中(zhong)應(ying)安裝文丘(qiu)里攪(jiao)拌(ban)噴嘴(zui)(zui)(zui)(zui)(zui)(zui),以"H"型即(ji)攪(jiao)拌(ban)噴嘴(zui)(zui)(zui)(zui)(zui)(zui)(也稱(cheng)為文丘(qiu)里噴嘴(zui)(zui)(zui)(zui)(zui)(zui))為例,槽(cao)液經一(yi)定壓力與引道不(bu)銹(xiu)鋼噴嘴(zui)(zui)(zui)(zui)(zui)(zui)口被吸(xi)入的(de)液體(ti)共(gong)同(tong)以1:4的(de)流量 混合(he)后擴散噴射出來,達到溶質(zhi)無空(kong)氣混合(he)攪(jiao)拌(ban)的(de)效(xiao)果,從而防止了沉(chen)淀,因為攪(jiao)動確保(bao)了化學溶液均勻(yun)的(de)混合(he)。
1、噴嘴的排布
2、噴嘴質量的檢查和損壞的常見原因 影響清(qing)洗噴嘴問題(ti)的常(chang)見(jian)原(yuan)因有(you)七(qi)種: a)腐蝕和磨損:噴嘴噴口和內流通道(dao)表面的物質(zhi)逐漸變大(da)或變形,進(jin)而影響流量、壓力和噴霧(wu)形狀。 b)腐蝕:噴(pen)霧液或環境的化學作用引起(qi)腐蝕破壞了(le)噴(pen)嘴材料(liao)。 c)阻塞:液(ye)體(ti)中的(de)污垢或(huo)其它雜質阻塞了(le)(le)噴嘴(zui)口(kou)部,因(yin)而限制了(le)(le)噴嘴(zui)的(de)流(liu)量和(he)干擾了(le)(le)噴霧形狀及其均勻度。 d)黏結:由液(ye)體蒸(zheng)發而引起在噴嘴口(kou)邊(bian)緣內側或(huo)霧(wu)化噴嘴外側材料上(shang)的(de)噴濺、霧(wu)氣或(huo)化學堆積作(zuo)用(yong),能(neng)遺留(liu)一層干燥的(de)凝固層,阻塞噴嘴口(kou)或(huo)內流通道。 e)溫度損害:過熱對(dui)非高(gao)溫用途設計的螺(luo)旋噴嘴材料會有一定的損害影(ying)響(xiang)。 壓(ya)力噴(pen)(pen)嘴(zui) 噴(pen)(pen)嘴(zui)需要維修(xiu),定期檢查、清(qing)潔甚至更(geng)換(huan),以便保(bao)證最終(zhong)產(chan)品質量和保(bao)持生(sheng)產(chan)過程的經濟效益。維修(xiu)程序的方(fang)式和頻率取決于用(yong)途(tu)。維修(xiu)計劃可(ke)依據用(yong)途(tu)、液體和噴(pen)(pen)嘴(zui)螺旋噴(pen)(pen)嘴(zui)材料進(jin)行安排。 f)不正確(que)的安裝:偏(pian)離軸心的墊圈,過度上緊(jin)或其它(ta)改變位置(zhi)的問題均能產生不良影(ying)響。 g)意(yi)外損(sun)(sun)傷:在安裝(zhuang)和清(qing)潔中,由(you)于使(shi)用不正確的(de)工具(ju)可能意(yi)外地對噴嘴(zui)造(zao)成損(sun)(sun)傷。 3、噴嘴的應用領域 1.汽車(che)制造(zao)業(ye)中(zhong)的(de)各類清洗(xi)機(ji)、涂裝線中(zhong)的(de)噴(pen)(pen)淋清洗(xi)、霧化(hua)噴(pen)(pen)淋、槽液攪拌等設備。 2.摩托車碳化硅(gui)噴嘴、自行車、電冰箱、洗衣機(ji)(ji)等制造業中的(de)各類(lei)清(qing)洗機(ji)(ji)、涂裝線。 在(zai)按工(gong)(gong)(gong)(gong)件(jian)(jian)的(de)(de)外廓尺寸組成的(de)(de)環(huan)形管(guan)道上按一(yi)定(ding)的(de)(de)排列安裝若(ruo)干噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)嘴(zui)(zui)(zui)(zui),將工(gong)(gong)(gong)(gong)件(jian)(jian)包圍,使工(gong)(gong)(gong)(gong)件(jian)(jian)經過噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)淋區(qu)時,全部表面均能被槽液噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)洗,整(zheng)個噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)淋區(qu)應均勻布(bu)置(zhi)(zhi)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)嘴(zui)(zui)(zui)(zui)以保 證噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)洗的(de)(de)工(gong)(gong)(gong)(gong)藝時間(jian)(jian)及效果(guo)。噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)嘴(zui)(zui)(zui)(zui)距(ju)工(gong)(gong)(gong)(gong)件(jian)(jian)之間(jian)(jian)的(de)(de)距(ju)離(li)(li),應在(zai)射流最佳擴散射程之內,為(wei)(wei)此噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)管(guan)與噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)嘴(zui)(zui)(zui)(zui)布(bu)置(zhi)(zhi)要合理。噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)管(guan)與噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)嘴(zui)(zui)(zui)(zui)之間(jian)(jian)的(de)(de)距(ju)離(li)(li)為(wei)(wei)250mm~300mm霧(wu)化噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)嘴(zui)(zui)(zui)(zui), 交叉排布(bu)時,陶瓷噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)嘴(zui)(zui)(zui)(zui)與工(gong)(gong)(gong)(gong)件(jian)(jian)之間(jian)(jian)的(de)(de)距(ju)離(li)(li)最好不低(di)于250mm。?? 浸漬式涂裝前(qian)處理攪(jiao)(jiao)拌(ban)裝置(zhi)(zhi)由泵(beng)到管(guan)道至(zhi)攪(jiao)(jiao)拌(ban)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)嘴(zui)(zui)(zui)(zui),構成了完整(zheng)的(de)(de)槽液噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)射系統。攪(jiao)(jiao)拌(ban)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)嘴(zui)(zui)(zui)(zui)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)頭運(yun)用(yong)文丘里(li)原(yuan)理,槽液在(zai)一(yi)定(ding)壓力(li)的(de)(de)作(zuo)用(yong)下噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)嘴(zui)(zui)(zui)(zui)進入管(guan)道,通過攪(jiao)(jiao)拌(ban)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)嘴(zui)(zui)(zui)(zui)的(de)(de)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen) 孔形成高速射流,并在(zai)壓力(li)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)嘴(zui)(zui)(zui)(zui)四周(zhou)引道口產生低(di)壓區(qu),形成虹吸現象(xiang),在(zai)壓力(li)差的(de)(de)作(zuo)用(yong)下槽液被吸入攪(jiao)(jiao)拌(ban)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)嘴(zui)(zui)(zui)(zui),從而(er)能循環(huan)大(da)(da)量的(de)(de)液體。攪(jiao)(jiao)拌(ban)噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)嘴(zui)(zui)(zui)(zui)距(ju)槽底的(de)(de)距(ju)離(li)(li)為(wei)(wei) 25mm~75mm,與工(gong)(gong)(gong)(gong)件(jian)(jian)的(de)(de)距(ju)離(li)(li)為(wei)(wei)200mm~380mm,噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)孔的(de)(de)角度(du)(du)應根據工(gong)(gong)(gong)(gong)件(jian)(jian)大(da)(da)小(xiao)來確定(ding)。當(dang)工(gong)(gong)(gong)(gong)件(jian)(jian)寬度(du)(du)較小(xiao)時,噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)孔可設(she)計(ji)垂直(zhi)向上,當(dang)工(gong)(gong)(gong)(gong)件(jian)(jian)較大(da)(da)時,噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen) 孔可設(she)計(ji)與垂直(zhi)面成35°~45°;當(dang)工(gong)(gong)(gong)(gong)件(jian)(jian)寬度(du)(du)較大(da)(da)時,為(wei)(wei)提高攪(jiao)(jiao)拌(ban)效果(guo),噴(pen)(pen)(pen)(pen)(pen)(pen)(pen)(pen)孔可設(she)計(ji)垂直(zhi)向下,但這(zhe)種(zhong)情況會(hui)將沉(chen)淀(dian)物攪(jiao)(jiao)起,因此只適用(yong)于無沉(chen)淀(dian)物槽液的(de)(de)攪(jiao)(jiao) 拌(ban)。 所以(yi)使用螺旋(xuan)噴(pen)嘴、霧化噴(pen)嘴、夾(jia)扣噴(pen)嘴時(shi)應該理性選擇(ze)噴(pen)嘴產品 ? |
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