熱水(shui)泵(beng)集式密(mi)封的(de)(de)大多數主要特性是(shi)其控制密(mi)封功能、摩擦(ca)(ca)力(li)、磨損(sun)和壽命的(de)(de)自動界面(mian)潤滑機理。一(yi)切(qie)取(qu)決(jue)于(yu)(yu)穿過界面(mian)并建立潤滑膜(mo)的(de)(de)液體(ti)(ti)以(yi)便密(mi)封在實(shi)際無接觸，通常是(shi)混合磨擦(ca)(ca)，介(jie)于(yu)(yu)干(gan)摩擦(ca)(ca)和完(wan)整(zheng)液膜(mo)之間的(de)(de)潤滑摩擦(ca)(ca)狀態下運(yun)行。在腔(qiang)體(ti)(ti)壓力(li)作用(yong)下介(jie)質(zhi)穿過密(mi)封摩擦(ca)(ca)副端(duan)面(mian)，表(biao)面(mian)張力(li)和離心力(li)在此時影(ying)響不大，流(liu)體(ti)(ti)壓力(li)持續下降直到它達到外部(bu)背壓，此壓力(li)作用(yong)類似于(yu)(yu)流(liu)體(ti)(ti)靜壓時軸承的(de)(de)承載(zai)功能。這(zhe)取(qu)決(jue)于(yu)(yu)介(jie)質(zhi)粘度、轉(zhuan)速和端(duan)面(mian)間隙變化。

　　熱水泵集式密封(feng)(feng)要(yao)起到(dao)靜(jing)環(huan)(huan)和(he)動(dong)(dong)(dong)(dong)(dong)(dong)環(huan)(huan)的密封(feng)(feng)作(zuo)用(yong)，同時也起到(dao)浮動(dong)(dong)(dong)(dong)(dong)(dong)緩沖作(zuo)用(yong)，要(yao)求靜(jing)環(huan)(huan)的輔助(zhu)密封(feng)(feng)元件(jian)能(neng)保證(zheng)靜(jing)環(huan)(huan)與壓蓋之(zhi)間的密封(feng)(feng)性和(he)靜(jing)環(huan)(huan)有一定的浮動(dong)(dong)(dong)(dong)(dong)(dong)性，動(dong)(dong)(dong)(dong)(dong)(dong)環(huan)(huan)的輔助(zhu)密封(feng)(feng)元件(jian)能(neng)保證(zheng)動(dong)(dong)(dong)(dong)(dong)(dong)環(huan)(huan)與軸與軸套之(zhi)間的密封(feng)(feng)性和(he)動(dong)(dong)(dong)(dong)(dong)(dong)環(huan)(huan)的浮動(dong)(dong)(dong)(dong)(dong)(dong)性，材料(liao)要(yao)求耐熱或(huo)耐寒并能(neng)與介質相(xiang)容。起到(dao)將(jiang)軸的轉(zhuan)矩(ju)傳(chuan)(chuan)給動(dong)(dong)(dong)(dong)(dong)(dong)環(huan)(huan)的作(zuo)用(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—彈簧座均起傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)作(zuo)用(yong)，材料(liao)要(yao)求耐磨(mo)和(he)耐腐蝕(shi)。

　　緊固(gu)件要(yao)起到靜、動環的(de)(de)定位(wei)、緊固(gu)和盛裝的(de)(de)作(zuo)用(yong)(yong)，要(yao)求定位(wei)正(zheng)確(que)，保證摩擦副密封(feng)面(mian)處于正(zheng)確(que)的(de)(de)位(wei)置并保持良好貼合的(de)(de)彈簧比壓。同時要(yao)求拆裝方便(bian)、容易就(jiu)位(wei)、能重復(fu)利用(yong)(yong)。與輔(fu)助密封(feng)配合處，注意(yi)安裝密封(feng)環的(de)(de)導向側角(jiao)和壓彈量(liang)。特別應(ying)注意(yi)動環輔(fu)助密封(feng)件與軸套配合處要(yao)求耐(nai)(nai)腐蝕和耐(nai)(nai)磨損，必要(yao)時采用(yong)(yong)硬面(mian)復(fu)層。

　　熱水泵集式(shi)密(mi)封一(yi)般配上平衡(heng)循環(huan)(huan)(huan)系統(tong)(tong)，可(ke)使用在(zai)(zai)易(yi)燃、易(yi)爆、有毒及腐蝕、高真空等(deng)對密(mi)封要求(qiu)更(geng)為嚴格的場(chang)合。密(mi)封結(jie)構(gou)(gou)為外沖洗結(jie)構(gou)(gou)，沖洗液(ye)(ye)可(ke)以為清潔(jie)的水也可(ke)為工業(ye)回用水，密(mi)封腔壓力高于(yu)沖洗液(ye)(ye)的壓力，沖洗液(ye)(ye)在(zai)(zai)輔助套的上端(duan)輸(shu)(shu)入，在(zai)(zai)輔助套的下端(duan)輸(shu)(shu)出(chu),循環(huan)(huan)(huan)使用,密(mi)封起到冷卻沖洗的作(zuo)用，其輔助裝(zhuang)置有調溫器、平衡(heng)罐、強制(zhi)循環(huan)(huan)(huan)平衡(heng)系統(tong)(tong)等(deng)。