掃一掃,加微信
聯系客服,馬上詢價
發布時間:2021-06-01 15:10:39 人氣(qi):181579 來源:川(chuan)工(gong)密封
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。渣漿泵用堆龍德慶機械密封的工作原理要求堆龍德慶機械密封內部無任何雜質,在組裝堆龍德慶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堆龍德慶機械密封嚴重(zhong)漏(lou)泄。必要時可以制(zhi)作工裝在組裝前水壓試驗(yan),檢查動靜環(huan)座(zuo)是(shi)否存在影(ying)響(xiang)密封(feng)的缺陷(xian)。
渣漿堆龍德慶泵用堆龍德慶機械密封由于密封面變形所引起的,而且堆龍德慶機械密封面泄漏的概率是很高的。如果泵在啟動時就發生堆龍德慶泵用堆龍德慶機械密封泄漏,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堆龍德慶機械密封的變(bian)形情況(kuang)。如果發生(sheng)變(bian)形,用平晶檢查密(mi)封面(mian)的干涉帶的變(bian)化情況(kuang),密(mi)封面(mian)變(bian)形存在于動環(huan)和靜環(huan)之間(jian)。
壓缸體(ti)動(dong)(dong)(dong)態(tai)(tai)密封(feng)系(xi)統采用(yong)(yong)的(de)(de)(de)是主密封(feng)設(she)計(ji)(ji),一(yi)般都用(yong)(yong)U型(xing)密封(feng)圈(quan)。液壓缸體(ti)的(de)(de)(de)往復式(shi)動(dong)(dong)(dong)態(tai)(tai)密封(feng)系(xi)統的(de)(de)(de)設(she)計(ji)(ji),開始使用(yong)(yong)了更加復雜的(de)(de)(de)U型(xing)圈(quan)和(he)同軸(zhou)密封(feng)組(zu)件的(de)(de)(de)復合式(shi)設(she)計(ji)(ji)。密封(feng)的(de)(de)(de)靜(jing)環(huan)(huan)(huan)(huan)通(tong)常固定在(zai)殼體(ti)上,動(dong)(dong)(dong)環(huan)(huan)(huan)(huan)通(tong)過彈簧、彈簧座與軸(zhou)一(yi)同旋轉(zhuan)。靜(jing)環(huan)(huan)(huan)(huan)與殼體(ti)、動(dong)(dong)(dong)環(huan)(huan)(huan)(huan)與軸(zhou)形成的(de)(de)(de)間隙用(yong)(yong)成型(xing)填料密封(feng)。在(zai)動(dong)(dong)(dong)環(huan)(huan)(huan)(huan)和(he)靜(jing)環(huan)(huan)(huan)(huan)接觸的(de)(de)(de)端面形成相對滑(hua)(hua)動(dong)(dong)(dong)面,即動(dong)(dong)(dong)密封(feng)面。為(wei)保證(zheng)密封(feng)良好,動(dong)(dong)(dong)密封(feng)面應十分(fen)平直和(he)光潔。彈簧力和(he)被密封(feng)的(de)(de)(de)流體(ti)壓力使動(dong)(dong)(dong)環(huan)(huan)(huan)(huan)貼緊靜(jing)環(huan)(huan)(huan)(huan)。因動(dong)(dong)(dong)環(huan)(huan)(huan)(huan)與軸(zhou)通(tong)過彈簧連接,動(dong)(dong)(dong)環(huan)(huan)(huan)(huan)和(he)靜(jing)環(huan)(huan)(huan)(huan)間貼合性受軸(zhou)的(de)(de)(de)振(zhen)動(dong)(dong)(dong)和(he)擺動(dong)(dong)(dong)影響較小(xiao)。靜(jing)環(huan)(huan)(huan)(huan)一(yi)般常用(yong)(yong)潤滑(hua)(hua)性好的(de)(de)(de)軟(ruan)質(zhi)材(cai)料如石墨、填充聚四氟(fu)乙烯等(deng),動(dong)(dong)(dong)環(huan)(huan)(huan)(huan)多用(yong)(yong)硬質(zhi)合金、陶瓷(ci)等(deng)材(cai)料制造。