熱水泵(beng)集式密(mi)封(feng)的(de)(de)(de)大多數主要(yao)特(te)性是(shi)其(qi)控制密(mi)封(feng)功(gong)能(neng)、摩擦力(li)(li)、磨損和壽命的(de)(de)(de)自動界(jie)面(mian)潤滑機理。一切取決于穿過界(jie)面(mian)并建立潤滑膜的(de)(de)(de)液體以便(bian)密(mi)封(feng)在實際(ji)無接觸，通常是(shi)混合磨擦，介于干摩擦和完(wan)整液膜之間的(de)(de)(de)潤滑摩擦狀態下(xia)(xia)運行。在腔體壓力(li)(li)作(zuo)用下(xia)(xia)介質(zhi)穿過密(mi)封(feng)摩擦副(fu)端面(mian)，表(biao)面(mian)張力(li)(li)和離心力(li)(li)在此時影響(xiang)不大，流體壓力(li)(li)持續下(xia)(xia)降直到它(ta)達(da)到外部背(bei)壓，此壓力(li)(li)作(zuo)用類(lei)似于流體靜壓時軸承的(de)(de)(de)承載功(gong)能(neng)。這(zhe)取決于介質(zhi)粘度、轉速和端面(mian)間隙(xi)變化(hua)。

　　熱水泵(beng)集(ji)式密封要(yao)(yao)(yao)起到(dao)靜(jing)環(huan)(huan)和動(dong)(dong)(dong)(dong)(dong)(dong)環(huan)(huan)的密封作(zuo)用(yong)(yong)，同時也起到(dao)浮動(dong)(dong)(dong)(dong)(dong)(dong)緩沖(chong)作(zuo)用(yong)(yong)，要(yao)(yao)(yao)求靜(jing)環(huan)(huan)的輔(fu)助密封元件能(neng)保證靜(jing)環(huan)(huan)與壓(ya)蓋(gai)之(zhi)間的密封性(xing)(xing)(xing)和靜(jing)環(huan)(huan)有一定(ding)的浮動(dong)(dong)(dong)(dong)(dong)(dong)性(xing)(xing)(xing)，動(dong)(dong)(dong)(dong)(dong)(dong)環(huan)(huan)的輔(fu)助密封元件能(neng)保證動(dong)(dong)(dong)(dong)(dong)(dong)環(huan)(huan)與軸與軸套之(zhi)間的密封性(xing)(xing)(xing)和動(dong)(dong)(dong)(dong)(dong)(dong)環(huan)(huan)的浮動(dong)(dong)(dong)(dong)(dong)(dong)性(xing)(xing)(xing)，材(cai)料要(yao)(yao)(yao)求耐熱或耐寒并能(neng)與介質相容。起到(dao)將軸的轉矩傳(chuan)(chuan)給動(dong)(dong)(dong)(dong)(dong)(dong)環(huan)(huan)的作(zuo)用(yong)(yong)，中間傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)的傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)銷、壓(ya)環(huan)(huan)—傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)環(huan)(huan)、傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)銷—彈(dan)簧座均起傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)作(zuo)用(yong)(yong)，材(cai)料要(yao)(yao)(yao)求耐磨和耐腐蝕。

　　緊(jin)固件(jian)要起到靜、動(dong)環的(de)(de)定位(wei)、緊(jin)固和盛裝的(de)(de)作用(yong)，要求(qiu)(qiu)定位(wei)正(zheng)確(que)，保(bao)證摩擦副(fu)密(mi)封(feng)面處(chu)于正(zheng)確(que)的(de)(de)位(wei)置并(bing)保(bao)持良好貼合(he)的(de)(de)彈簧(huang)比壓。同(tong)時(shi)要求(qiu)(qiu)拆裝方便、容(rong)易就(jiu)位(wei)、能(neng)重復(fu)(fu)利用(yong)。與輔(fu)助密(mi)封(feng)配合(he)處(chu)，注意安裝密(mi)封(feng)環的(de)(de)導向側角和壓彈量。特別(bie)應注意動(dong)環輔(fu)助密(mi)封(feng)件(jian)與軸套配合(he)處(chu)要求(qiu)(qiu)耐腐蝕(shi)和耐磨損，必要時(shi)采用(yong)硬面復(fu)(fu)層(ceng)。

　　熱水(shui)泵集式密封一般(ban)配上平衡(heng)循環(huan)系(xi)統，可(ke)使用在(zai)易(yi)燃、易(yi)爆、有毒及(ji)腐蝕、高真空等對密封要求更為嚴(yan)格(ge)的(de)(de)場合。密封結構為外沖(chong)洗結構，沖(chong)洗液(ye)可(ke)以為清(qing)潔的(de)(de)水(shui)也(ye)可(ke)為工(gong)業(ye)回用水(shui)，密封腔(qiang)壓力高于沖(chong)洗液(ye)的(de)(de)壓力，沖(chong)洗液(ye)在(zai)輔助(zhu)(zhu)套的(de)(de)上端輸(shu)(shu)入，在(zai)輔助(zhu)(zhu)套的(de)(de)下端輸(shu)(shu)出,循環(huan)使用,密封起到冷卻沖(chong)洗的(de)(de)作用，其輔助(zhu)(zhu)裝置有調(diao)溫(wen)器、平衡(heng)罐、強制循環(huan)平衡(heng)系(xi)統等。