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。渣漿濱江泵用濱江機械密封的工作原理要求濱江機械密封內部無任何雜質，在組裝濱江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濱江機械密封嚴重漏(lou)泄(xie)。必要時可(ke)以制作工裝在組裝前水壓試驗(yan)，檢查動靜環座(zuo)是否(fou)存在影響密封的缺陷。

　　渣漿濱江泵用濱江機械密封由于密封面變形所引起的，而且濱江機械密封面泄漏的概率是很高的。如果泵在啟動時就發生濱江泵用濱江機械密封泄漏，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濱江機械密封的(de)變(bian)(bian)形(xing)情況。如果發(fa)生變(bian)(bian)形(xing)，用平晶檢查密(mi)封面的(de)干涉帶的(de)變(bian)(bian)化情況，密(mi)封面變(bian)(bian)形(xing)存在于動環和靜環之間。

　　壓(ya)缸(gang)體(ti)動(dong)(dong)(dong)(dong)態密(mi)(mi)(mi)(mi)封(feng)(feng)系(xi)統采用(yong)的(de)(de)(de)是主密(mi)(mi)(mi)(mi)封(feng)(feng)設計，一(yi)般(ban)都用(yong)U型密(mi)(mi)(mi)(mi)封(feng)(feng)圈。液壓(ya)缸(gang)體(ti)的(de)(de)(de)往復(fu)式動(dong)(dong)(dong)(dong)態密(mi)(mi)(mi)(mi)封(feng)(feng)系(xi)統的(de)(de)(de)設計，開(kai)始(shi)使用(yong)了(le)更加(jia)復(fu)雜(za)的(de)(de)(de)U型圈和同(tong)軸(zhou)(zhou)密(mi)(mi)(mi)(mi)封(feng)(feng)組(zu)件的(de)(de)(de)復(fu)合(he)式設計。密(mi)(mi)(mi)(mi)封(feng)(feng)的(de)(de)(de)靜(jing)(jing)環(huan)(huan)(huan)通常固定在殼體(ti)上，動(dong)(dong)(dong)(dong)環(huan)(huan)(huan)通過彈(dan)簧、彈(dan)簧座與(yu)(yu)軸(zhou)(zhou)一(yi)同(tong)旋轉。靜(jing)(jing)環(huan)(huan)(huan)與(yu)(yu)殼體(ti)、動(dong)(dong)(dong)(dong)環(huan)(huan)(huan)與(yu)(yu)軸(zhou)(zhou)形成(cheng)的(de)(de)(de)間隙用(yong)成(cheng)型填料密(mi)(mi)(mi)(mi)封(feng)(feng)。在動(dong)(dong)(dong)(dong)環(huan)(huan)(huan)和靜(jing)(jing)環(huan)(huan)(huan)接(jie)觸(chu)的(de)(de)(de)端面(mian)(mian)形成(cheng)相對滑動(dong)(dong)(dong)(dong)面(mian)(mian)，即動(dong)(dong)(dong)(dong)密(mi)(mi)(mi)(mi)封(feng)(feng)面(mian)(mian)。為保證密(mi)(mi)(mi)(mi)封(feng)(feng)良(liang)好，動(dong)(dong)(dong)(dong)密(mi)(mi)(mi)(mi)封(feng)(feng)面(mian)(mian)應(ying)十分平直和光潔(jie)。彈(dan)簧力(li)和被(bei)密(mi)(mi)(mi)(mi)封(feng)(feng)的(de)(de)(de)流體(ti)壓(ya)力(li)使動(dong)(dong)(dong)(dong)環(huan)(huan)(huan)貼緊靜(jing)(jing)環(huan)(huan)(huan)。因動(dong)(dong)(dong)(dong)環(huan)(huan)(huan)與(yu)(yu)軸(zhou)(zhou)通過彈(dan)簧連接(jie)，動(dong)(dong)(dong)(dong)環(huan)(huan)(huan)和靜(jing)(jing)環(huan)(huan)(huan)間貼合(he)性(xing)受軸(zhou)(zhou)的(de)(de)(de)振動(dong)(dong)(dong)(dong)和擺(bai)動(dong)(dong)(dong)(dong)影(ying)響(xiang)較(jiao)小(xiao)。靜(jing)(jing)環(huan)(huan)(huan)一(yi)般(ban)常用(yong)潤滑性(xing)好的(de)(de)(de)軟質材(cai)料如(ru)石墨、填充聚四氟(fu)乙烯等，動(dong)(dong)(dong)(dong)環(huan)(huan)(huan)多(duo)用(yong)硬質合(he)金、陶瓷等材(cai)料制造(zao)。