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聯系客服,馬上詢價
發布時間:2021-12-20 15:24:47 人(ren)氣:98726 來源(yuan):
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。渣漿桑珠孜泵用桑珠孜機械密封的工作原理要求桑珠孜機械密封內部無任何雜質,在組裝桑珠孜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桑珠孜機械密封嚴重(zhong)漏泄。必要時(shi)可以(yi)制作工裝(zhuang)在(zai)組裝(zhuang)前水(shui)壓試驗(yan),檢查動(dong)靜環座是(shi)否存在(zai)影響密封(feng)的缺陷。
渣漿桑珠孜泵用桑珠孜機械密封由于密封面變形所引起的,而且桑珠孜機械密封面泄漏的概率是很高的。如果泵在啟動時就發生桑珠孜泵用桑珠孜機械密封泄漏,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桑珠孜機械密封的(de)變(bian)(bian)(bian)形(xing)(xing)情(qing)況。如果發(fa)生(sheng)變(bian)(bian)(bian)形(xing)(xing),用平晶檢查密封(feng)(feng)面的(de)干涉帶(dai)的(de)變(bian)(bian)(bian)化情(qing)況,密封(feng)(feng)面變(bian)(bian)(bian)形(xing)(xing)存在(zai)于(yu)動環和靜環之(zhi)間(jian)。
壓(ya)(ya)缸體(ti)動(dong)(dong)(dong)(dong)態(tai)密(mi)封(feng)系(xi)統采用(yong)的(de)是(shi)主(zhu)密(mi)封(feng)設計(ji),一般都用(yong)U型密(mi)封(feng)圈。液壓(ya)(ya)缸體(ti)的(de)往復式動(dong)(dong)(dong)(dong)態(tai)密(mi)封(feng)系(xi)統的(de)設計(ji),開始使用(yong)了更(geng)加(jia)復雜(za)的(de)U型圈和(he)(he)同軸密(mi)封(feng)組件的(de)復合(he)式設計(ji)。密(mi)封(feng)的(de)靜(jing)環(huan)(huan)通常固定在(zai)(zai)殼體(ti)上,動(dong)(dong)(dong)(dong)環(huan)(huan)通過(guo)彈(dan)簧(huang)(huang)、彈(dan)簧(huang)(huang)座與(yu)軸一同旋轉(zhuan)。靜(jing)環(huan)(huan)與(yu)殼體(ti)、動(dong)(dong)(dong)(dong)環(huan)(huan)與(yu)軸形成(cheng)的(de)間隙用(yong)成(cheng)型填(tian)料密(mi)封(feng)。在(zai)(zai)動(dong)(dong)(dong)(dong)環(huan)(huan)和(he)(he)靜(jing)環(huan)(huan)接(jie)觸的(de)端面形成(cheng)相對滑(hua)動(dong)(dong)(dong)(dong)面,即動(dong)(dong)(dong)(dong)密(mi)封(feng)面。為保證密(mi)封(feng)良好(hao),動(dong)(dong)(dong)(dong)密(mi)封(feng)面應十分平直和(he)(he)光(guang)潔。彈(dan)簧(huang)(huang)力和(he)(he)被密(mi)封(feng)的(de)流體(ti)壓(ya)(ya)力使動(dong)(dong)(dong)(dong)環(huan)(huan)貼緊靜(jing)環(huan)(huan)。因動(dong)(dong)(dong)(dong)環(huan)(huan)與(yu)軸通過(guo)彈(dan)簧(huang)(huang)連接(jie),動(dong)(dong)(dong)(dong)環(huan)(huan)和(he)(he)靜(jing)環(huan)(huan)間貼合(he)性受軸的(de)振動(dong)(dong)(dong)(dong)和(he)(he)擺動(dong)(dong)(dong)(dong)影(ying)響較小(xiao)。靜(jing)環(huan)(huan)一般常用(yong)潤滑(hua)性好(hao)的(de)軟質(zhi)(zhi)材料如(ru)石墨、填(tian)充聚四氟乙(yi)烯等(deng)(deng),動(dong)(dong)(dong)(dong)環(huan)(huan)多(duo)用(yong)硬質(zhi)(zhi)合(he)金(jin)、陶(tao)瓷等(deng)(deng)材料制造。