熱水泵集式密封(feng)的(de)大(da)多(duo)數主要(yao)特性是(shi)(shi)其控制密封(feng)功(gong)能、摩擦(ca)力、磨(mo)損和(he)壽命的(de)自動界(jie)面(mian)潤(run)滑(hua)機理。一切取決于(yu)穿(chuan)過(guo)界(jie)面(mian)并建(jian)立(li)潤(run)滑(hua)膜的(de)液(ye)體以便密封(feng)在實際(ji)無接觸，通(tong)常是(shi)(shi)混合磨(mo)擦(ca)，介(jie)于(yu)干摩擦(ca)和(he)完整(zheng)液(ye)膜之(zhi)間的(de)潤(run)滑(hua)摩擦(ca)狀態下(xia)運行。在腔體壓力作用(yong)下(xia)介(jie)質穿(chuan)過(guo)密封(feng)摩擦(ca)副端面(mian)，表(biao)面(mian)張力和(he)離心力在此時影響不大(da)，流體壓力持續下(xia)降直到它(ta)達到外部(bu)背壓，此壓力作用(yong)類似于(yu)流體靜壓時軸承(cheng)的(de)承(cheng)載(zai)功(gong)能。這(zhe)取決于(yu)介(jie)質粘度(du)、轉(zhuan)速和(he)端面(mian)間隙變化。

　　熱(re)水泵集式密(mi)(mi)封(feng)要(yao)起(qi)到(dao)靜環(huan)(huan)和(he)動(dong)(dong)(dong)(dong)環(huan)(huan)的密(mi)(mi)封(feng)作用，同(tong)時也起(qi)到(dao)浮動(dong)(dong)(dong)(dong)緩沖作用，要(yao)求靜環(huan)(huan)的輔助密(mi)(mi)封(feng)元(yuan)件能保證靜環(huan)(huan)與(yu)(yu)壓蓋之(zhi)間的密(mi)(mi)封(feng)性(xing)和(he)靜環(huan)(huan)有一定的浮動(dong)(dong)(dong)(dong)性(xing)，動(dong)(dong)(dong)(dong)環(huan)(huan)的輔助密(mi)(mi)封(feng)元(yuan)件能保證動(dong)(dong)(dong)(dong)環(huan)(huan)與(yu)(yu)軸(zhou)(zhou)與(yu)(yu)軸(zhou)(zhou)套(tao)之(zhi)間的密(mi)(mi)封(feng)性(xing)和(he)動(dong)(dong)(dong)(dong)環(huan)(huan)的浮動(dong)(dong)(dong)(dong)性(xing)，材(cai)料要(yao)求耐(nai)熱(re)或耐(nai)寒(han)并能與(yu)(yu)介質相容。起(qi)到(dao)將(jiang)軸(zhou)(zhou)的轉矩傳(chuan)給(gei)動(dong)(dong)(dong)(dong)環(huan)(huan)的作用，中間傳(chuan)動(dong)(dong)(dong)(dong)的傳(chuan)動(dong)(dong)(dong)(dong)銷(xiao)、壓環(huan)(huan)—傳(chuan)動(dong)(dong)(dong)(dong)環(huan)(huan)、傳(chuan)動(dong)(dong)(dong)(dong)銷(xiao)—彈(dan)簧座均(jun)起(qi)傳(chuan)動(dong)(dong)(dong)(dong)作用，材(cai)料要(yao)求耐(nai)磨和(he)耐(nai)腐蝕(shi)。

　　緊(jin)固(gu)(gu)件要(yao)(yao)起到靜、動環(huan)的(de)(de)(de)定(ding)位、緊(jin)固(gu)(gu)和盛(sheng)裝(zhuang)的(de)(de)(de)作用(yong)，要(yao)(yao)求(qiu)定(ding)位正確(que)，保證(zheng)摩擦副密(mi)封(feng)(feng)(feng)面(mian)(mian)處于正確(que)的(de)(de)(de)位置并保持良好貼合(he)的(de)(de)(de)彈(dan)簧比壓。同(tong)時要(yao)(yao)求(qiu)拆裝(zhuang)方便、容易就位、能重復(fu)利用(yong)。與輔(fu)助(zhu)密(mi)封(feng)(feng)(feng)配(pei)合(he)處，注意安裝(zhuang)密(mi)封(feng)(feng)(feng)環(huan)的(de)(de)(de)導向側角和壓彈(dan)量(liang)。特別(bie)應注意動環(huan)輔(fu)助(zhu)密(mi)封(feng)(feng)(feng)件與軸套配(pei)合(he)處要(yao)(yao)求(qiu)耐腐(fu)蝕和耐磨損，必要(yao)(yao)時采用(yong)硬面(mian)(mian)復(fu)層。

　　熱水(shui)泵集式密封(feng)一般配上(shang)平(ping)衡(heng)循環(huan)系統，可使(shi)用(yong)在易燃、易爆(bao)、有毒及腐蝕、高真(zhen)空等對密封(feng)要(yao)求更為(wei)嚴格的場(chang)合。密封(feng)結構(gou)為(wei)外(wai)沖(chong)(chong)(chong)洗(xi)(xi)結構(gou)，沖(chong)(chong)(chong)洗(xi)(xi)液(ye)可以為(wei)清潔的水(shui)也可為(wei)工業回用(yong)水(shui)，密封(feng)腔壓(ya)力(li)高于沖(chong)(chong)(chong)洗(xi)(xi)液(ye)的壓(ya)力(li)，沖(chong)(chong)(chong)洗(xi)(xi)液(ye)在輔(fu)助套的上(shang)端輸入(ru)，在輔(fu)助套的下端輸出,循環(huan)使(shi)用(yong),密封(feng)起到冷(leng)卻沖(chong)(chong)(chong)洗(xi)(xi)的作用(yong)，其輔(fu)助裝置有調溫器、平(ping)衡(heng)罐、強制(zhi)循環(huan)平(ping)衡(heng)系統等。