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聯系客服,馬上詢價
發布(bu)時間:2021-12-20 15:24:47 人(ren)氣:98780 來源:
反壓狀態是不良的工作狀態,介質中的顆粒、雜質很容易進入密封面,使密封失效。磨軸的主要件為橡膠波紋管,且由于上端密封面處于不良潤滑狀態,動靜環之間的摩擦力矩大于橡膠波紋管與軸之間的傳遞轉矩,從而發生相對轉動。動、靜環輔助密封由于受到污水中的弱酸、弱堿的腐蝕,橡膠件已無彈性。渣漿頭屯河泵用頭屯河機械密封的工作原理要求頭屯河機械密封內部無任何雜質,在組裝頭屯河機械密封前要徹底清掃動環、靜環、軸套等部件,檢查動靜環表面是否存在劃痕、裂紋等缺陷,這些缺陷存在會造成頭屯河機械密封嚴重漏泄。必要時可(ke)以制作工裝(zhuang)在(zai)組裝(zhuang)前水壓(ya)試(shi)驗,檢查動(dong)靜環座是(shi)否存在(zai)影響密封的(de)缺陷(xian)。
渣漿頭屯河泵用頭屯河機械密封由于密封面變形所引起的,而且頭屯河機械密封面泄漏的概率是很高的。如果泵在啟動時就發生頭屯河泵用頭屯河機械密封泄漏,而拆查密封面時看不見有損壞的地方,這時就應該用平晶檢查頭屯河機械密封的(de)變(bian)形(xing)情況。如(ru)果(guo)發(fa)生變(bian)形(xing),用平晶檢查(cha)密封面的(de)干涉帶(dai)的(de)變(bian)化情況,密封面變(bian)形(xing)存(cun)在(zai)于動環和靜(jing)環之間。
壓(ya)缸體(ti)動(dong)(dong)態密(mi)封(feng)(feng)(feng)(feng)系統(tong)采用(yong)(yong)(yong)的(de)是主密(mi)封(feng)(feng)(feng)(feng)設(she)計(ji),一(yi)(yi)般都用(yong)(yong)(yong)U型密(mi)封(feng)(feng)(feng)(feng)圈。液壓(ya)缸體(ti)的(de)往復(fu)式動(dong)(dong)態密(mi)封(feng)(feng)(feng)(feng)系統(tong)的(de)設(she)計(ji),開(kai)始使用(yong)(yong)(yong)了更加(jia)復(fu)雜的(de)U型圈和(he)(he)同軸(zhou)密(mi)封(feng)(feng)(feng)(feng)組(zu)件的(de)復(fu)合式設(she)計(ji)。密(mi)封(feng)(feng)(feng)(feng)的(de)靜(jing)環(huan)(huan)(huan)(huan)通(tong)常固定在(zai)殼體(ti)上,動(dong)(dong)環(huan)(huan)(huan)(huan)通(tong)過(guo)彈簧、彈簧座與(yu)軸(zhou)一(yi)(yi)同旋轉。靜(jing)環(huan)(huan)(huan)(huan)與(yu)殼體(ti)、動(dong)(dong)環(huan)(huan)(huan)(huan)與(yu)軸(zhou)形成(cheng)的(de)間隙用(yong)(yong)(yong)成(cheng)型填料密(mi)封(feng)(feng)(feng)(feng)。在(zai)動(dong)(dong)環(huan)(huan)(huan)(huan)和(he)(he)靜(jing)環(huan)(huan)(huan)(huan)接觸(chu)的(de)端面(mian)(mian)(mian)形成(cheng)相對滑(hua)動(dong)(dong)面(mian)(mian)(mian),即(ji)動(dong)(dong)密(mi)封(feng)(feng)(feng)(feng)面(mian)(mian)(mian)。為保證密(mi)封(feng)(feng)(feng)(feng)良好,動(dong)(dong)密(mi)封(feng)(feng)(feng)(feng)面(mian)(mian)(mian)應十分平直和(he)(he)光潔。彈簧力和(he)(he)被密(mi)封(feng)(feng)(feng)(feng)的(de)流體(ti)壓(ya)力使動(dong)(dong)環(huan)(huan)(huan)(huan)貼(tie)緊靜(jing)環(huan)(huan)(huan)(huan)。因(yin)動(dong)(dong)環(huan)(huan)(huan)(huan)與(yu)軸(zhou)通(tong)過(guo)彈簧連接,動(dong)(dong)環(huan)(huan)(huan)(huan)和(he)(he)靜(jing)環(huan)(huan)(huan)(huan)間貼(tie)合性受軸(zhou)的(de)振(zhen)動(dong)(dong)和(he)(he)擺動(dong)(dong)影響較小。靜(jing)環(huan)(huan)(huan)(huan)一(yi)(yi)般常用(yong)(yong)(yong)潤滑(hua)性好的(de)軟質材(cai)料如石墨、填充聚四(si)氟乙烯等(deng),動(dong)(dong)環(huan)(huan)(huan)(huan)多(duo)用(yong)(yong)(yong)硬(ying)質合金、陶瓷等(deng)材(cai)料制(zhi)造。