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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:94705 來(lai)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。渣漿鳳翔泵用鳳翔機械密封的工作原理要求鳳翔機械密封內部無任何雜質,在組裝鳳翔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鳳翔機械密封嚴重漏(lou)泄。必要時可以制作工(gong)裝在組(zu)裝前水壓試驗,檢查動靜環座是否存在影響(xiang)密封(feng)的缺陷。
渣漿鳳翔泵用鳳翔機械密封由于密封面變形所引起的,而且鳳翔機械密封面泄漏的概率是很高的。如果泵在啟動時就發生鳳翔泵用鳳翔機械密封泄漏,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鳳翔機械密封的變(bian)(bian)形(xing)情況。如果發生變(bian)(bian)形(xing),用平晶檢查密封面的干涉帶的變(bian)(bian)化情況,密封面變(bian)(bian)形(xing)存在(zai)于動(dong)環和(he)靜(jing)環之(zhi)間。
壓(ya)缸體動(dong)(dong)態(tai)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)系統(tong)采用(yong)(yong)的(de)是(shi)主密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)設計(ji),一般(ban)都用(yong)(yong)U型(xing)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)圈。液壓(ya)缸體的(de)往(wang)復式動(dong)(dong)態(tai)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)系統(tong)的(de)設計(ji),開始(shi)使用(yong)(yong)了更(geng)加復雜的(de)U型(xing)圈和同(tong)軸(zhou)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)組件的(de)復合式設計(ji)。密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)的(de)靜環(huan)(huan)(huan)通常(chang)固定(ding)在(zai)殼體上,動(dong)(dong)環(huan)(huan)(huan)通過(guo)彈(dan)簧(huang)、彈(dan)簧(huang)座與(yu)軸(zhou)一同(tong)旋(xuan)轉。靜環(huan)(huan)(huan)與(yu)殼體、動(dong)(dong)環(huan)(huan)(huan)與(yu)軸(zhou)形成(cheng)的(de)間隙用(yong)(yong)成(cheng)型(xing)填(tian)料(liao)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)。在(zai)動(dong)(dong)環(huan)(huan)(huan)和靜環(huan)(huan)(huan)接觸的(de)端面(mian)(mian)形成(cheng)相對滑動(dong)(dong)面(mian)(mian),即動(dong)(dong)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)面(mian)(mian)。為(wei)保(bao)證密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)良好(hao),動(dong)(dong)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)面(mian)(mian)應十分平直和光(guang)潔。彈(dan)簧(huang)力(li)和被密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)的(de)流體壓(ya)力(li)使動(dong)(dong)環(huan)(huan)(huan)貼(tie)緊靜環(huan)(huan)(huan)。因動(dong)(dong)環(huan)(huan)(huan)與(yu)軸(zhou)通過(guo)彈(dan)簧(huang)連(lian)接,動(dong)(dong)環(huan)(huan)(huan)和靜環(huan)(huan)(huan)間貼(tie)合性(xing)受軸(zhou)的(de)振動(dong)(dong)和擺(bai)動(dong)(dong)影響(xiang)較小。靜環(huan)(huan)(huan)一般(ban)常(chang)用(yong)(yong)潤滑性(xing)好(hao)的(de)軟(ruan)質材料(liao)如(ru)石墨、填(tian)充聚四氟乙烯等,動(dong)(dong)環(huan)(huan)(huan)多用(yong)(yong)硬質合金(jin)、陶瓷等材料(liao)制造(zao)。