熱(re)水(shui)泵(beng)集(ji)式密封(feng)的(de)(de)大多數(shu)主要特(te)性是(shi)(shi)其控制(zhi)密封(feng)功能(neng)、摩擦(ca)力(li)、磨(mo)損(sun)和(he)壽命的(de)(de)自(zi)動界(jie)(jie)面潤滑機(ji)理。一切取(qu)決(jue)于穿(chuan)過界(jie)(jie)面并建立潤滑膜的(de)(de)液體(ti)以(yi)便密封(feng)在(zai)實(shi)際無接觸，通常是(shi)(shi)混(hun)合(he)磨(mo)擦(ca)，介(jie)(jie)于干摩擦(ca)和(he)完整液膜之間的(de)(de)潤滑摩擦(ca)狀(zhuang)態下運(yun)行。在(zai)腔體(ti)壓力(li)作(zuo)用(yong)下介(jie)(jie)質(zhi)(zhi)穿(chuan)過密封(feng)摩擦(ca)副(fu)端面，表面張力(li)和(he)離心(xin)力(li)在(zai)此(ci)(ci)時(shi)影響不大，流(liu)體(ti)壓力(li)持續(xu)下降直到(dao)它達到(dao)外部(bu)背壓，此(ci)(ci)壓力(li)作(zuo)用(yong)類似于流(liu)體(ti)靜壓時(shi)軸承的(de)(de)承載功能(neng)。這取(qu)決(jue)于介(jie)(jie)質(zhi)(zhi)粘度(du)、轉速和(he)端面間隙(xi)變(bian)化。

　　熱水泵集式密(mi)封(feng)要起(qi)到(dao)靜環(huan)(huan)(huan)和動(dong)(dong)(dong)環(huan)(huan)(huan)的密(mi)封(feng)作(zuo)用(yong)，同時也起(qi)到(dao)浮動(dong)(dong)(dong)緩沖作(zuo)用(yong)，要求靜環(huan)(huan)(huan)的輔助(zhu)密(mi)封(feng)元件能(neng)(neng)保證(zheng)靜環(huan)(huan)(huan)與(yu)壓(ya)蓋之(zhi)間(jian)的密(mi)封(feng)性和靜環(huan)(huan)(huan)有(you)一定的浮動(dong)(dong)(dong)性，動(dong)(dong)(dong)環(huan)(huan)(huan)的輔助(zhu)密(mi)封(feng)元件能(neng)(neng)保證(zheng)動(dong)(dong)(dong)環(huan)(huan)(huan)與(yu)軸(zhou)與(yu)軸(zhou)套(tao)之(zhi)間(jian)的密(mi)封(feng)性和動(dong)(dong)(dong)環(huan)(huan)(huan)的浮動(dong)(dong)(dong)性，材料(liao)要求耐(nai)熱或耐(nai)寒并能(neng)(neng)與(yu)介質相容。起(qi)到(dao)將軸(zhou)的轉矩傳給(gei)動(dong)(dong)(dong)環(huan)(huan)(huan)的作(zuo)用(yong)，中(zhong)間(jian)傳動(dong)(dong)(dong)的傳動(dong)(dong)(dong)銷、壓(ya)環(huan)(huan)(huan)—傳動(dong)(dong)(dong)環(huan)(huan)(huan)、傳動(dong)(dong)(dong)銷—彈簧座均起(qi)傳動(dong)(dong)(dong)作(zuo)用(yong)，材料(liao)要求耐(nai)磨和耐(nai)腐蝕。

　　緊固件(jian)要(yao)(yao)(yao)起到(dao)靜、動(dong)環(huan)的(de)定(ding)位(wei)、緊固和(he)盛裝的(de)作用，要(yao)(yao)(yao)求定(ding)位(wei)正確，保(bao)證(zheng)摩擦副密(mi)(mi)封(feng)面(mian)處(chu)于正確的(de)位(wei)置并保(bao)持良好(hao)貼合(he)的(de)彈(dan)(dan)簧(huang)比(bi)壓。同(tong)時要(yao)(yao)(yao)求拆裝方便(bian)、容(rong)易(yi)就位(wei)、能重復利用。與輔助(zhu)密(mi)(mi)封(feng)配合(he)處(chu)，注意安裝密(mi)(mi)封(feng)環(huan)的(de)導向側(ce)角和(he)壓彈(dan)(dan)量。特(te)別應注意動(dong)環(huan)輔助(zhu)密(mi)(mi)封(feng)件(jian)與軸(zhou)套配合(he)處(chu)要(yao)(yao)(yao)求耐腐(fu)蝕和(he)耐磨損，必要(yao)(yao)(yao)時采用硬面(mian)復層。

　　熱水(shui)泵集式(shi)密封(feng)(feng)(feng)一般配上(shang)平衡(heng)循(xun)環系(xi)統，可(ke)使(shi)用(yong)(yong)在(zai)(zai)易燃、易爆、有(you)毒及腐(fu)蝕、高真空等對密封(feng)(feng)(feng)要求更為嚴格的場合。密封(feng)(feng)(feng)結構為外沖(chong)(chong)洗結構，沖(chong)(chong)洗液可(ke)以為清(qing)潔的水(shui)也可(ke)為工(gong)業回用(yong)(yong)水(shui)，密封(feng)(feng)(feng)腔壓力高于沖(chong)(chong)洗液的壓力，沖(chong)(chong)洗液在(zai)(zai)輔助套的上(shang)端輸入，在(zai)(zai)輔助套的下(xia)端輸出,循(xun)環使(shi)用(yong)(yong),密封(feng)(feng)(feng)起(qi)到(dao)冷(leng)卻沖(chong)(chong)洗的作用(yong)(yong)，其輔助裝置有(you)調溫(wen)器、平衡(heng)罐、強制循(xun)環平衡(heng)系(xi)統等。