掃一掃,加微信
聯系客服,馬上詢價
發布時間:2021-12-17 11:55:16 人氣:98825 來(lai)源(yuan):
熱水泵(beng)集式(shi)密(mi)(mi)(mi)封(feng)的(de)大多數主要特(te)性是其控制密(mi)(mi)(mi)封(feng)功(gong)(gong)能、摩擦(ca)(ca)力、磨(mo)損(sun)和(he)壽命的(de)自(zi)動界(jie)面潤滑(hua)(hua)機理。一切取決于穿過界(jie)面并建立潤滑(hua)(hua)膜(mo)的(de)液(ye)體(ti)(ti)以便密(mi)(mi)(mi)封(feng)在(zai)實際無接觸,通常(chang)是混(hun)合磨(mo)擦(ca)(ca),介(jie)于干(gan)摩擦(ca)(ca)和(he)完整液(ye)膜(mo)之間(jian)的(de)潤滑(hua)(hua)摩擦(ca)(ca)狀(zhuang)態下運行(xing)。在(zai)腔體(ti)(ti)壓(ya)力作用下介(jie)質穿過密(mi)(mi)(mi)封(feng)摩擦(ca)(ca)副端(duan)(duan)面,表(biao)面張力和(he)離(li)心(xin)力在(zai)此時影響不大,流體(ti)(ti)壓(ya)力持續下降(jiang)直到它達到外部背壓(ya),此壓(ya)力作用類似(si)于流體(ti)(ti)靜壓(ya)時軸承的(de)承載功(gong)(gong)能。這取決于介(jie)質粘度(du)、轉速和(he)端(duan)(duan)面間(jian)隙變化。
熱(re)水泵集式密封(feng)(feng)要起到靜(jing)(jing)環(huan)(huan)(huan)(huan)和動(dong)(dong)(dong)環(huan)(huan)(huan)(huan)的(de)(de)(de)(de)密封(feng)(feng)作用(yong),同時也起到浮(fu)動(dong)(dong)(dong)緩沖(chong)作用(yong),要求(qiu)靜(jing)(jing)環(huan)(huan)(huan)(huan)的(de)(de)(de)(de)輔助密封(feng)(feng)元件(jian)能保證靜(jing)(jing)環(huan)(huan)(huan)(huan)與壓蓋之間(jian)的(de)(de)(de)(de)密封(feng)(feng)性和靜(jing)(jing)環(huan)(huan)(huan)(huan)有一定(ding)的(de)(de)(de)(de)浮(fu)動(dong)(dong)(dong)性,動(dong)(dong)(dong)環(huan)(huan)(huan)(huan)的(de)(de)(de)(de)輔助密封(feng)(feng)元件(jian)能保證動(dong)(dong)(dong)環(huan)(huan)(huan)(huan)與軸與軸套之間(jian)的(de)(de)(de)(de)密封(feng)(feng)性和動(dong)(dong)(dong)環(huan)(huan)(huan)(huan)的(de)(de)(de)(de)浮(fu)動(dong)(dong)(dong)性,材(cai)(cai)料(liao)要求(qiu)耐(nai)熱(re)或耐(nai)寒并能與介質相容。起到將軸的(de)(de)(de)(de)轉矩傳(chuan)(chuan)給動(dong)(dong)(dong)環(huan)(huan)(huan)(huan)的(de)(de)(de)(de)作用(yong),中間(jian)傳(chuan)(chuan)動(dong)(dong)(dong)的(de)(de)(de)(de)傳(chuan)(chuan)動(dong)(dong)(dong)銷、壓環(huan)(huan)(huan)(huan)—傳(chuan)(chuan)動(dong)(dong)(dong)環(huan)(huan)(huan)(huan)、傳(chuan)(chuan)動(dong)(dong)(dong)銷—彈(dan)簧(huang)座均起傳(chuan)(chuan)動(dong)(dong)(dong)作用(yong),材(cai)(cai)料(liao)要求(qiu)耐(nai)磨和耐(nai)腐蝕。
緊(jin)固件(jian)要(yao)起(qi)到(dao)靜、動環的定位(wei)(wei)、緊(jin)固和(he)盛裝(zhuang)的作用,要(yao)求定位(wei)(wei)正確,保(bao)證摩擦副密封(feng)(feng)面處于正確的位(wei)(wei)置并保(bao)持良好貼合(he)(he)的彈簧比壓(ya)。同時(shi)要(yao)求拆裝(zhuang)方便(bian)、容(rong)易就(jiu)位(wei)(wei)、能重復(fu)利用。與(yu)輔助密封(feng)(feng)配(pei)合(he)(he)處,注(zhu)意(yi)安裝(zhuang)密封(feng)(feng)環的導(dao)向側(ce)角和(he)壓(ya)彈量。特別應(ying)注(zhu)意(yi)動環輔助密封(feng)(feng)件(jian)與(yu)軸套配(pei)合(he)(he)處要(yao)求耐腐蝕和(he)耐磨損(sun),必要(yao)時(shi)采用硬面復(fu)層。
熱(re)水泵(beng)集式(shi)密(mi)(mi)封(feng)(feng)(feng)一般配上(shang)平衡(heng)循環系統,可(ke)(ke)使(shi)用(yong)在易燃(ran)、易爆、有(you)毒及腐蝕(shi)、高(gao)真空等對密(mi)(mi)封(feng)(feng)(feng)要求更為(wei)(wei)嚴格的(de)場合。密(mi)(mi)封(feng)(feng)(feng)結(jie)構為(wei)(wei)外沖(chong)(chong)(chong)洗結(jie)構,沖(chong)(chong)(chong)洗液(ye)可(ke)(ke)以為(wei)(wei)清潔的(de)水也可(ke)(ke)為(wei)(wei)工業回用(yong)水,密(mi)(mi)封(feng)(feng)(feng)腔壓力(li)高(gao)于沖(chong)(chong)(chong)洗液(ye)的(de)壓力(li),沖(chong)(chong)(chong)洗液(ye)在輔(fu)(fu)助套的(de)上(shang)端(duan)輸入,在輔(fu)(fu)助套的(de)下端(duan)輸出,循環使(shi)用(yong),密(mi)(mi)封(feng)(feng)(feng)起到冷卻沖(chong)(chong)(chong)洗的(de)作用(yong),其輔(fu)(fu)助裝置有(you)調(diao)溫器(qi)、平衡(heng)罐、強制循環平衡(heng)系統等。