隴縣機械密封的大(da)多數(shu)主要特性(xing)是其控制密(mi)(mi)封(feng)(feng)功(gong)(gong)能(neng)(neng)、摩(mo)(mo)擦(ca)(ca)力(li)(li)、磨損和(he)(he)壽命的自動(dong)(dong)界面(mian)(mian)(mian)潤滑(hua)機理。一切(qie)取(qu)決于(yu)(yu)(yu)穿(chuan)過(guo)界面(mian)(mian)(mian)并建立潤滑(hua)膜(mo)的液體(ti)(ti)(ti)(ti)以便密(mi)(mi)封(feng)(feng)在實際(ji)無接觸(通(tong)常是混合(he)磨擦(ca)(ca)，介于(yu)(yu)(yu)干摩(mo)(mo)擦(ca)(ca)和(he)(he)完整液膜(mo)之間(jian)的潤滑(hua)摩(mo)(mo)擦(ca)(ca)狀態)條件(jian)下(xia)運(yun)行。在腔體(ti)(ti)(ti)(ti)壓(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)作(zuo)用(yong)(yong)下(xia)介質穿(chuan)過(guo)密(mi)(mi)封(feng)(feng)摩(mo)(mo)擦(ca)(ca)副端(duan)(duan)面(mian)(mian)(mian);表面(mian)(mian)(mian)張力(li)(li)和(he)(he)離(li)心力(li)(li)在此(ci)時(shi)影響不大(da)。隨著流(liu)體(ti)(ti)(ti)(ti)徑向流(liu)過(guo)端(duan)(duan)面(mian)(mian)(mian)，流(liu)體(ti)(ti)(ti)(ti)壓(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)持(chi)續下(xia)降直(zhi)到它(ta)達到外部(bu)背壓(ya)(ya)(ya)(ya)(ya)(ya)(一般(ban)為大(da)氣壓(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li))，此(ci)壓(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)作(zuo)用(yong)(yong)類(lei)似于(yu)(yu)(yu)流(liu)體(ti)(ti)(ti)(ti)靜*承(cheng)的承(cheng)載(zai)(zai)功(gong)(gong)能(neng)(neng)。密(mi)(mi)封(feng)(feng)承(cheng)載(zai)(zai)能(neng)(neng)力(li)(li)取(qu)決于(yu)(yu)(yu)壓(ya)(ya)(ya)(ya)(ya)(ya)差和(he)(he)界面(mian)(mian)(mian)間(jian)隙(xi)的形狀變(bian)(bian)(bian)化(hua)，數(shu)學分析比較(jiao)復雜，當密(mi)(mi)封(feng)(feng)旋轉時(shi)，端(duan)(duan)面(mian)(mian)(mian)內(nei)的剪(jian)切(qie)流(liu)與端(duan)(duan)面(mian)(mian)(mian)剩余高度變(bian)(bian)(bian)化(hua)相(xiang)互作(zuo)用(yong)(yong)產生流(liu)體(ti)(ti)(ti)(ti)動(dong)(dong)壓(ya)(ya)(ya)(ya)(ya)(ya)，該壓(ya)(ya)(ya)(ya)(ya)(ya)力(li)(li)場具(ju)有流(liu)體(ti)(ti)(ti)(ti)動(dong)(dong)*承(cheng)類(lei)似的承(cheng)載(zai)(zai)功(gong)(gong)能(neng)(neng)，并取(qu)決于(yu)(yu)(yu)介質粘度、轉速(su)和(he)(he)端(duan)(duan)面(mian)(mian)(mian)間(jian)隙(xi)變(bian)(bian)(bian)化(hua)。正常條件(jian)下(xia)，流(liu)體(ti)(ti)(ti)(ti)動(dong)(dong)壓(ya)(ya)(ya)(ya)(ya)(ya)流(liu)體(ti)(ti)(ti)(ti)動(dong)(dong)壓(ya)(ya)(ya)(ya)(ya)(ya)場和(he)(he)流(liu)體(ti)(ti)(ti)(ti)靜壓(ya)(ya)(ya)(ya)(ya)(ya)場構成(cheng)了(le)密(mi)(mi)封(feng)(feng)運(yun)行時(shi)的承(cheng)載(zai)(zai)能(neng)(neng)力(li)(li)，屬(shu)于(yu)(yu)(yu)開(kai)啟(qi)力(li)(li)部(bu)分，用(yong)(yong)于(yu)(yu)(yu)防止密(mi)(mi)封(feng)(feng)剛性(xing)接觸。

　　隴縣機械密封是(shi)屬于較(jiao)高(gao)精度的(de)機械部件(jian)，對(dui)其正確的(de)安(an)裝與(yu)操作對(dui)它的(de)使用壽(shou)命有(you)大大的(de)影響。那(nei)么就讓我們來看(kan)看(kan)安(an)裝時有(you)哪些注意事項呢?

　　1.安裝時(shi)需講(jiang)究平衡、對稱

　　把(ba)密(mi)封(feng)件放置(zhi)在(zai)恰好緊(jin)扣有效(xiao)密(mi)封(feng)面(或(huo)唇(chun)口線)的(de)(de)位置(zhi)。硬密(mi)封(feng)球閥開通使用后(hou)，還需做(zuo)進一(yi)步的(de)(de)觀察和緊(jin)固密(mi)封(feng)件的(de)(de)善后(hou)工(gong)作(zuo)，防(fang)止系統工(gong)作(zuo)過程中由于工(gong)況條件的(de)(de)變化(hua)(如(ru)增壓)而(er)發生微泄漏(lou)引起的(de)(de)潰決。

　　2.不能強行(xing)安裝(zhuang)

　　有些密封(feng)件是安放在槽狀的填料(liao)函中，這時(shi)需(xu)(xu)要(yao)緊配安裝(zhuang)，施工時(shi)不可粗糙、野蠻，動作很大的強(qiang)行(xing)裝(zhuang)入勢必破壞密封(feng)件原(yuan)始預制(zhi)結構，這就好比(bi)把預制(zhi)混凝土打碎后填入所需(xu)(xu)部位必然導致災難一(yi)樣(yang)。對這類密封(feng)件安裝(zhuang)必須(xu)十(shi)分小心、仔細，嵌入須(xu)逐次分步進(jin)行(xing);

　　3.不要(yao)損傷密封(feng)件(jian)表面的密封(feng)面或密封(feng)線

　　平面密(mi)(mi)封(feng)(feng)(feng)件的(de)密(mi)(mi)封(feng)(feng)(feng)性(xing)能依(yi)靠上下兩個端面;液壓密(mi)(mi)封(feng)(feng)(feng)件的(de)密(mi)(mi)封(feng)(feng)(feng)性(xing)能依(yi)賴與(yu)孔或軸相關(guan)(guan)配(pei)的(de)唇口(kou)線，這些部(bu)位均由既柔(rou)軟(ruan)又富回彈性(xing)的(de)耐溫(wen)、耐腐蝕(shi)、耐老(lao)化的(de)石墨(mo)、橡塑(su)、纖維這些易受(shou)損傷的(de)特(te)殊材料構成，因而更(geng)需要在搬(ban)運(yun)、安裝、保(bao)管過程中給予特(te)別(bie)的(de)保(bao)護和關(guan)(guan)照，一旦受(shou)損往往會(hui)給密(mi)(mi)封(feng)(feng)(feng)部(bu)位留下很大隱患;

　　4、部件的確認

　　把隴縣機械密封安裝到機器(qi)上時，安裝前要(yao)(yao)很(hen)好(hao)的與(yu)總裝配(pei)圖相對照，確認零(ling)件(jian)是否已準備齊全，這時要(yao)(yao)注(zhu)意密(mi)封(feng)(feng)(feng)磨擦副密(mi)封(feng)(feng)(feng)面(mian)、密(mi)封(feng)(feng)(feng)圈(quan)等有(you)無(wu)傷(shang)痕(hen)、缺損等異(yi)常現象，還(huan)要(yao)(yao)注(zhu)意與(yu)填料、密(mi)封(feng)(feng)(feng)圈(quan)(O環)等相接觸的軸(zhou)或(huo)軸(zhou)套表(biao)面(mian)、法蘭等部件(jian)上有(you)無(wu)傷(shang)痕(hen)，若發現有(you)異(yi)常的現象，則(ze)必須更換或(huo)修理后再使用。