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聯系客服,馬上詢價
發布時間:2021-12-17 11:55:16 人(ren)氣:94533 來(lai)源:
熱(re)水(shui)泵集(ji)式密(mi)封(feng)的(de)大(da)多(duo)數主要特性是其控(kong)制密(mi)封(feng)功能、摩擦力、磨損和(he)壽命的(de)自動界面(mian)(mian)潤滑機理。一(yi)切取(qu)決于穿(chuan)過(guo)界面(mian)(mian)并(bing)建立潤滑膜的(de)液體以便密(mi)封(feng)在(zai)實際(ji)無接(jie)觸(chu),通常是混合磨擦,介(jie)于干摩擦和(he)完(wan)整液膜之間的(de)潤滑摩擦狀態(tai)下運行。在(zai)腔體壓(ya)力作用(yong)下介(jie)質穿(chuan)過(guo)密(mi)封(feng)摩擦副(fu)端面(mian)(mian),表面(mian)(mian)張(zhang)力和(he)離心力在(zai)此時影響不(bu)大(da),流體壓(ya)力持續下降直到它達到外部背(bei)壓(ya),此壓(ya)力作用(yong)類似(si)于流體靜壓(ya)時軸承的(de)承載功能。這取(qu)決于介(jie)質粘度、轉速和(he)端面(mian)(mian)間隙變化(hua)。
熱水泵集式(shi)密(mi)封(feng)(feng)(feng)要起(qi)到(dao)靜環(huan)(huan)(huan)(huan)和(he)動(dong)(dong)(dong)(dong)環(huan)(huan)(huan)(huan)的(de)(de)密(mi)封(feng)(feng)(feng)作用(yong)(yong),同時也起(qi)到(dao)浮(fu)動(dong)(dong)(dong)(dong)緩沖作用(yong)(yong),要求靜環(huan)(huan)(huan)(huan)的(de)(de)輔(fu)助密(mi)封(feng)(feng)(feng)元件(jian)能保證(zheng)靜環(huan)(huan)(huan)(huan)與(yu)壓蓋之(zhi)間的(de)(de)密(mi)封(feng)(feng)(feng)性(xing)和(he)靜環(huan)(huan)(huan)(huan)有(you)一定(ding)的(de)(de)浮(fu)動(dong)(dong)(dong)(dong)性(xing),動(dong)(dong)(dong)(dong)環(huan)(huan)(huan)(huan)的(de)(de)輔(fu)助密(mi)封(feng)(feng)(feng)元件(jian)能保證(zheng)動(dong)(dong)(dong)(dong)環(huan)(huan)(huan)(huan)與(yu)軸(zhou)與(yu)軸(zhou)套之(zhi)間的(de)(de)密(mi)封(feng)(feng)(feng)性(xing)和(he)動(dong)(dong)(dong)(dong)環(huan)(huan)(huan)(huan)的(de)(de)浮(fu)動(dong)(dong)(dong)(dong)性(xing),材料要求耐(nai)熱或(huo)耐(nai)寒(han)并能與(yu)介質相(xiang)容。起(qi)到(dao)將(jiang)軸(zhou)的(de)(de)轉矩傳(chuan)給動(dong)(dong)(dong)(dong)環(huan)(huan)(huan)(huan)的(de)(de)作用(yong)(yong),中間傳(chuan)動(dong)(dong)(dong)(dong)的(de)(de)傳(chuan)動(dong)(dong)(dong)(dong)銷、壓環(huan)(huan)(huan)(huan)—傳(chuan)動(dong)(dong)(dong)(dong)環(huan)(huan)(huan)(huan)、傳(chuan)動(dong)(dong)(dong)(dong)銷—彈簧座(zuo)均起(qi)傳(chuan)動(dong)(dong)(dong)(dong)作用(yong)(yong),材料要求耐(nai)磨和(he)耐(nai)腐蝕。
緊固件要(yao)起(qi)到靜、動環的(de)定位(wei)、緊固和盛(sheng)裝的(de)作用(yong),要(yao)求定位(wei)正確(que),保證摩擦副密(mi)封(feng)面處于正確(que)的(de)位(wei)置并保持良好貼(tie)合的(de)彈簧比壓。同時(shi)要(yao)求拆(chai)裝方便、容易就位(wei)、能重(zhong)復(fu)利用(yong)。與輔(fu)助(zhu)(zhu)密(mi)封(feng)配(pei)合處,注意安(an)裝密(mi)封(feng)環的(de)導向側角(jiao)和壓彈量。特別應注意動環輔(fu)助(zhu)(zhu)密(mi)封(feng)件與軸套配(pei)合處要(yao)求耐腐蝕(shi)和耐磨損(sun),必要(yao)時(shi)采用(yong)硬面復(fu)層。
熱(re)水泵集式密(mi)封(feng)(feng)一般配上(shang)平衡(heng)循環系(xi)統,可(ke)(ke)使用(yong)在(zai)易(yi)燃、易(yi)爆、有(you)毒(du)及腐(fu)蝕、高真空等對(dui)密(mi)封(feng)(feng)要(yao)求更為(wei)(wei)嚴(yan)格的(de)(de)(de)場(chang)合。密(mi)封(feng)(feng)結構為(wei)(wei)外沖(chong)洗(xi)結構,沖(chong)洗(xi)液(ye)可(ke)(ke)以(yi)為(wei)(wei)清潔(jie)的(de)(de)(de)水也可(ke)(ke)為(wei)(wei)工(gong)業回用(yong)水,密(mi)封(feng)(feng)腔壓(ya)力高于沖(chong)洗(xi)液(ye)的(de)(de)(de)壓(ya)力,沖(chong)洗(xi)液(ye)在(zai)輔(fu)助套的(de)(de)(de)上(shang)端輸入,在(zai)輔(fu)助套的(de)(de)(de)下端輸出,循環使用(yong),密(mi)封(feng)(feng)起到冷卻沖(chong)洗(xi)的(de)(de)(de)作用(yong),其(qi)輔(fu)助裝置有(you)調溫器、平衡(heng)罐、強制循環平衡(heng)系(xi)統等。