熱水泵集式密封的大多數主要特性(xing)是(shi)其控制(zhi)密封功能、摩擦(ca)(ca)力(li)、磨(mo)損和(he)壽命的自動界(jie)面(mian)潤(run)滑機理。一切取決于(yu)穿過界(jie)面(mian)并建立潤(run)滑膜(mo)的液(ye)體以便密封在實際無接(jie)觸，通常是(shi)混合磨(mo)擦(ca)(ca)，介(jie)(jie)于(yu)干(gan)摩擦(ca)(ca)和(he)完整(zheng)液(ye)膜(mo)之間的潤(run)滑摩擦(ca)(ca)狀態下(xia)運(yun)行。在腔體壓力(li)作用下(xia)介(jie)(jie)質穿過密封摩擦(ca)(ca)副端面(mian)，表面(mian)張力(li)和(he)離(li)心力(li)在此(ci)時影響不大，流體壓力(li)持(chi)續(xu)下(xia)降直(zhi)到它達(da)到外部背壓，此(ci)壓力(li)作用類(lei)似于(yu)流體靜壓時軸承(cheng)的承(cheng)載功能。這取決于(yu)介(jie)(jie)質粘度、轉速和(he)端面(mian)間隙(xi)變(bian)化。

　　熱水泵(beng)集式密(mi)(mi)封要起到(dao)靜(jing)環(huan)(huan)(huan)和動(dong)(dong)(dong)(dong)(dong)(dong)環(huan)(huan)(huan)的密(mi)(mi)封作用，同時也起到(dao)浮(fu)動(dong)(dong)(dong)(dong)(dong)(dong)緩(huan)沖作用，要求靜(jing)環(huan)(huan)(huan)的輔(fu)(fu)助密(mi)(mi)封元件能(neng)保證靜(jing)環(huan)(huan)(huan)與(yu)壓蓋之(zhi)間的密(mi)(mi)封性和靜(jing)環(huan)(huan)(huan)有一定的浮(fu)動(dong)(dong)(dong)(dong)(dong)(dong)性，動(dong)(dong)(dong)(dong)(dong)(dong)環(huan)(huan)(huan)的輔(fu)(fu)助密(mi)(mi)封元件能(neng)保證動(dong)(dong)(dong)(dong)(dong)(dong)環(huan)(huan)(huan)與(yu)軸與(yu)軸套之(zhi)間的密(mi)(mi)封性和動(dong)(dong)(dong)(dong)(dong)(dong)環(huan)(huan)(huan)的浮(fu)動(dong)(dong)(dong)(dong)(dong)(dong)性，材料要求耐(nai)(nai)熱或耐(nai)(nai)寒(han)并能(neng)與(yu)介質相容。起到(dao)將(jiang)軸的轉矩傳(chuan)給動(dong)(dong)(dong)(dong)(dong)(dong)環(huan)(huan)(huan)的作用，中間傳(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)的傳(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)銷、壓環(huan)(huan)(huan)—傳(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)環(huan)(huan)(huan)、傳(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)銷—彈簧座(zuo)均起傳(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)作用，材料要求耐(nai)(nai)磨(mo)和耐(nai)(nai)腐蝕。

　　緊固件(jian)要起到靜、動(dong)環(huan)的定位(wei)、緊固和盛裝的作用，要求定位(wei)正(zheng)確，保(bao)證摩擦副密封面處(chu)于正(zheng)確的位(wei)置并(bing)保(bao)持良(liang)好(hao)貼合(he)的彈簧(huang)比壓(ya)。同(tong)時要求拆(chai)裝方便、容易就(jiu)位(wei)、能重復利用。與(yu)(yu)輔助密封配合(he)處(chu)，注(zhu)意安裝密封環(huan)的導向側角和壓(ya)彈量。特別(bie)應注(zhu)意動(dong)環(huan)輔助密封件(jian)與(yu)(yu)軸套配合(he)處(chu)要求耐腐(fu)蝕(shi)和耐磨(mo)損，必要時采用硬面復層。

　　熱水(shui)泵集式(shi)密封(feng)一(yi)般(ban)配上平(ping)衡循(xun)環(huan)系統(tong)，可使用(yong)在易燃、易爆、有(you)毒及腐蝕、高(gao)(gao)真空等(deng)對密封(feng)要求更(geng)為嚴格的(de)場合。密封(feng)結構為外(wai)沖洗(xi)結構，沖洗(xi)液(ye)可以為清(qing)潔的(de)水(shui)也可為工(gong)業回用(yong)水(shui)，密封(feng)腔壓力高(gao)(gao)于沖洗(xi)液(ye)的(de)壓力，沖洗(xi)液(ye)在輔助(zhu)套(tao)的(de)上端輸入，在輔助(zhu)套(tao)的(de)下端輸出(chu),循(xun)環(huan)使用(yong),密封(feng)起到冷卻沖洗(xi)的(de)作用(yong)，其輔助(zhu)裝置(zhi)有(you)調(diao)溫器、平(ping)衡罐、強制循(xun)環(huan)平(ping)衡系統(tong)等(deng)。