熱水泵集式密封(feng)的(de)(de)大多數主要特性(xing)是(shi)其控制密封(feng)功(gong)能(neng)、摩(mo)擦(ca)(ca)力(li)(li)、磨損(sun)和(he)壽命的(de)(de)自(zi)動界(jie)面(mian)潤(run)(run)滑機理。一切取決(jue)于(yu)穿(chuan)過(guo)界(jie)面(mian)并建立潤(run)(run)滑膜(mo)的(de)(de)液體以便密封(feng)在(zai)實(shi)際(ji)無(wu)接(jie)觸，通(tong)常是(shi)混合磨擦(ca)(ca)，介于(yu)干摩(mo)擦(ca)(ca)和(he)完(wan)整液膜(mo)之間的(de)(de)潤(run)(run)滑摩(mo)擦(ca)(ca)狀態下(xia)運行。在(zai)腔體壓(ya)(ya)力(li)(li)作(zuo)用下(xia)介質穿(chuan)過(guo)密封(feng)摩(mo)擦(ca)(ca)副端(duan)面(mian)，表面(mian)張力(li)(li)和(he)離(li)心力(li)(li)在(zai)此(ci)時影響不大，流體壓(ya)(ya)力(li)(li)持(chi)續下(xia)降直到它達到外部背(bei)壓(ya)(ya)，此(ci)壓(ya)(ya)力(li)(li)作(zuo)用類(lei)似(si)于(yu)流體靜壓(ya)(ya)時軸承的(de)(de)承載功(gong)能(neng)。這取決(jue)于(yu)介質粘度(du)、轉速和(he)端(duan)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(de)(de)(de)(de)密(mi)(mi)封(feng)作(zuo)用，同(tong)時也起(qi)到(dao)浮(fu)動(dong)(dong)(dong)(dong)緩沖(chong)作(zuo)用，要(yao)求靜環(huan)(huan)的(de)(de)(de)(de)輔助密(mi)(mi)封(feng)元(yuan)件能保(bao)證(zheng)靜環(huan)(huan)與(yu)壓蓋之間的(de)(de)(de)(de)密(mi)(mi)封(feng)性(xing)(xing)和(he)靜環(huan)(huan)有一定的(de)(de)(de)(de)浮(fu)動(dong)(dong)(dong)(dong)性(xing)(xing)，動(dong)(dong)(dong)(dong)環(huan)(huan)的(de)(de)(de)(de)輔助密(mi)(mi)封(feng)元(yuan)件能保(bao)證(zheng)動(dong)(dong)(dong)(dong)環(huan)(huan)與(yu)軸與(yu)軸套之間的(de)(de)(de)(de)密(mi)(mi)封(feng)性(xing)(xing)和(he)動(dong)(dong)(dong)(dong)環(huan)(huan)的(de)(de)(de)(de)浮(fu)動(dong)(dong)(dong)(dong)性(xing)(xing)，材料要(yao)求耐熱(re)或(huo)耐寒并(bing)能與(yu)介質相容。起(qi)到(dao)將(jiang)軸的(de)(de)(de)(de)轉矩(ju)傳給(gei)動(dong)(dong)(dong)(dong)環(huan)(huan)的(de)(de)(de)(de)作(zuo)用，中間傳動(dong)(dong)(dong)(dong)的(de)(de)(de)(de)傳動(dong)(dong)(dong)(dong)銷(xiao)(xiao)、壓環(huan)(huan)—傳動(dong)(dong)(dong)(dong)環(huan)(huan)、傳動(dong)(dong)(dong)(dong)銷(xiao)(xiao)—彈簧座均起(qi)傳動(dong)(dong)(dong)(dong)作(zuo)用，材料要(yao)求耐磨(mo)和(he)耐腐(fu)蝕。

　　緊固件(jian)要(yao)起到靜、動(dong)環的定(ding)(ding)位(wei)、緊固和(he)盛裝(zhuang)的作(zuo)用(yong)，要(yao)求定(ding)(ding)位(wei)正確(que)，保證摩擦副密(mi)封(feng)面(mian)處于正確(que)的位(wei)置并保持(chi)良好(hao)貼(tie)合(he)(he)的彈簧比壓(ya)。同時(shi)要(yao)求拆裝(zhuang)方便、容易(yi)就位(wei)、能重(zhong)復(fu)利用(yong)。與輔助密(mi)封(feng)配合(he)(he)處，注意安裝(zhuang)密(mi)封(feng)環的導向(xiang)側角和(he)壓(ya)彈量。特(te)別(bie)應注意動(dong)環輔助密(mi)封(feng)件(jian)與軸套配合(he)(he)處要(yao)求耐(nai)(nai)腐蝕和(he)耐(nai)(nai)磨損(sun)，必要(yao)時(shi)采用(yong)硬(ying)面(mian)復(fu)層。

　　熱(re)水泵集式密(mi)封一般配上平衡循環(huan)(huan)系統，可使(shi)用(yong)(yong)(yong)在(zai)(zai)易燃、易爆、有毒及腐蝕、高真空(kong)等對密(mi)封要(yao)求(qiu)更為(wei)嚴格的(de)場(chang)合。密(mi)封結構(gou)為(wei)外沖(chong)(chong)(chong)洗(xi)結構(gou)，沖(chong)(chong)(chong)洗(xi)液可以為(wei)清潔(jie)的(de)水也可為(wei)工業回用(yong)(yong)(yong)水，密(mi)封腔壓力高于沖(chong)(chong)(chong)洗(xi)液的(de)壓力，沖(chong)(chong)(chong)洗(xi)液在(zai)(zai)輔(fu)助套的(de)上端輸入，在(zai)(zai)輔(fu)助套的(de)下端輸出,循環(huan)(huan)使(shi)用(yong)(yong)(yong),密(mi)封起到(dao)冷卻沖(chong)(chong)(chong)洗(xi)的(de)作用(yong)(yong)(yong)，其輔(fu)助裝置有調溫(wen)器、平衡罐(guan)、強制(zhi)循環(huan)(huan)平衡系統等。