熱水(shui)泵(beng)集式密(mi)封(feng)(feng)的大(da)多(duo)數主要特性是其控制密(mi)封(feng)(feng)功能(neng)、摩擦(ca)(ca)力(li)(li)、磨損和(he)壽命的自(zi)動界面(mian)潤滑(hua)機理。一切取決于穿(chuan)過(guo)界面(mian)并建(jian)立(li)潤滑(hua)膜的液體(ti)(ti)以便密(mi)封(feng)(feng)在實(shi)際無接觸，通常是混(hun)合磨擦(ca)(ca)，介于干摩擦(ca)(ca)和(he)完整液膜之間的潤滑(hua)摩擦(ca)(ca)狀(zhuang)態下運行。在腔(qiang)體(ti)(ti)壓(ya)力(li)(li)作(zuo)用下介質穿(chuan)過(guo)密(mi)封(feng)(feng)摩擦(ca)(ca)副端面(mian)，表面(mian)張力(li)(li)和(he)離心力(li)(li)在此(ci)時(shi)(shi)影響不大(da)，流體(ti)(ti)壓(ya)力(li)(li)持續下降直到(dao)它達到(dao)外(wai)部背壓(ya)，此(ci)壓(ya)力(li)(li)作(zuo)用類(lei)似于流體(ti)(ti)靜壓(ya)時(shi)(shi)軸承的承載功能(neng)。這取決于介質粘度、轉速和(he)端面(mian)間隙(xi)變(bian)化。

　　熱水泵集式(shi)密封(feng)(feng)要起(qi)到(dao)靜(jing)環(huan)(huan)(huan)和動(dong)(dong)(dong)(dong)(dong)環(huan)(huan)(huan)的(de)(de)(de)密封(feng)(feng)作(zuo)(zuo)用(yong)，同時也起(qi)到(dao)浮動(dong)(dong)(dong)(dong)(dong)緩沖作(zuo)(zuo)用(yong)，要求(qiu)靜(jing)環(huan)(huan)(huan)的(de)(de)(de)輔助(zhu)(zhu)密封(feng)(feng)元件(jian)能(neng)保(bao)證(zheng)靜(jing)環(huan)(huan)(huan)與(yu)壓蓋(gai)之間(jian)的(de)(de)(de)密封(feng)(feng)性和靜(jing)環(huan)(huan)(huan)有一定的(de)(de)(de)浮動(dong)(dong)(dong)(dong)(dong)性，動(dong)(dong)(dong)(dong)(dong)環(huan)(huan)(huan)的(de)(de)(de)輔助(zhu)(zhu)密封(feng)(feng)元件(jian)能(neng)保(bao)證(zheng)動(dong)(dong)(dong)(dong)(dong)環(huan)(huan)(huan)與(yu)軸與(yu)軸套(tao)之間(jian)的(de)(de)(de)密封(feng)(feng)性和動(dong)(dong)(dong)(dong)(dong)環(huan)(huan)(huan)的(de)(de)(de)浮動(dong)(dong)(dong)(dong)(dong)性，材料(liao)要求(qiu)耐(nai)熱或耐(nai)寒并能(neng)與(yu)介質相容。起(qi)到(dao)將(jiang)軸的(de)(de)(de)轉矩傳(chuan)(chuan)給動(dong)(dong)(dong)(dong)(dong)環(huan)(huan)(huan)的(de)(de)(de)作(zuo)(zuo)用(yong)，中(zhong)間(jian)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)銷、壓環(huan)(huan)(huan)—傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)環(huan)(huan)(huan)、傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)銷—彈簧座(zuo)均起(qi)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)作(zuo)(zuo)用(yong)，材料(liao)要求(qiu)耐(nai)磨(mo)和耐(nai)腐蝕。

　　緊固(gu)件要(yao)(yao)起到靜、動環的定位、緊固(gu)和(he)盛裝的作用，要(yao)(yao)求(qiu)定位正(zheng)確，保(bao)證摩擦(ca)副密封(feng)(feng)面(mian)處(chu)于正(zheng)確的位置(zhi)并保(bao)持良好貼合(he)(he)的彈簧比壓(ya)。同時要(yao)(yao)求(qiu)拆裝方便、容易就位、能重復(fu)利用。與輔(fu)助(zhu)密封(feng)(feng)配(pei)合(he)(he)處(chu)，注意安裝密封(feng)(feng)環的導向(xiang)側角和(he)壓(ya)彈量。特別應(ying)注意動環輔(fu)助(zhu)密封(feng)(feng)件與軸套(tao)配(pei)合(he)(he)處(chu)要(yao)(yao)求(qiu)耐腐蝕和(he)耐磨(mo)損(sun)，必(bi)要(yao)(yao)時采用硬(ying)面(mian)復(fu)層。

　　熱(re)水泵(beng)集式密(mi)封(feng)一(yi)般配(pei)上平(ping)衡循環(huan)系統，可使用在易燃、易爆、有毒(du)及腐(fu)蝕、高(gao)真(zhen)空等對密(mi)封(feng)要求更為(wei)嚴(yan)格的(de)(de)場合。密(mi)封(feng)結(jie)構為(wei)外(wai)沖(chong)洗(xi)結(jie)構，沖(chong)洗(xi)液(ye)(ye)可以為(wei)清潔的(de)(de)水也可為(wei)工業回(hui)用水，密(mi)封(feng)腔壓(ya)力高(gao)于沖(chong)洗(xi)液(ye)(ye)的(de)(de)壓(ya)力，沖(chong)洗(xi)液(ye)(ye)在輔助(zhu)套(tao)的(de)(de)上端輸(shu)入，在輔助(zhu)套(tao)的(de)(de)下端輸(shu)出,循環(huan)使用,密(mi)封(feng)起(qi)到(dao)冷(leng)卻沖(chong)洗(xi)的(de)(de)作用，其輔助(zhu)裝置有調溫器、平(ping)衡罐、強制循環(huan)平(ping)衡系統等。