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發(fa)布(bu)時間:2021-06-01 15:02:51 人氣:160727 來源(yuan):川工(gong)密封(feng)
旬陽泵用旬陽機械密封的O型圈為什么會泄漏失效?一般來說,原因可以從泵的旬陽機械密封的安裝、使用條件、運行(xing)(xing)速度和停機故(gu)障等(deng)方面進行(xing)(xing)監測(ce)原因。
一、安裝靜態試驗時的泄(xie)漏?
旬陽泵用旬陽機械密封安裝調試(shi)后,一(yi)般需要進行靜(jing)(jing)態試(shi)驗,觀察泄(xie)漏情況。如(ru)果(guo)(guo)(guo)泄(xie)漏量(liang)小(xiao),動(dong)(dong)(dong)(dong)環(huan)(huan)(huan)(huan)或靜(jing)(jing)環(huan)(huan)(huan)(huan)密封(feng)圈(quan)有(you)(you)問(wen)(wen)題(ti);當泄(xie)漏量(liang)較大(da)時,表(biao)明(ming)動(dong)(dong)(dong)(dong)靜(jing)(jing)環(huan)(huan)(huan)(huan)摩擦副之間存(cun)在問(wen)(wen)題(ti)。在初步觀察泄(xie)漏量(liang)和判斷泄(xie)漏位置(zhi)的基礎(chu)上,手(shou)動(dong)(dong)(dong)(dong)轉動(dong)(dong)(dong)(dong)O形圈(quan)進行觀察。如(ru)果(guo)(guo)(guo)泄(xie)漏量(liang)沒有(you)(you)明(ming)顯變(bian)化(hua),說明(ming)動(dong)(dong)(dong)(dong)靜(jing)(jing)環(huan)(huan)(huan)(huan)密封(feng)有(you)(you)問(wen)(wen)題(ti);如(ru)果(guo)(guo)(guo)轉動(dong)(dong)(dong)(dong)時泄(xie)漏量(liang)有(you)(you)明(ming)顯變(bian)化(hua),可以斷定(ding)動(dong)(dong)(dong)(dong)環(huan)(huan)(huan)(huan)和靜(jing)(jing)環(huan)(huan)(huan)(huan)的摩擦副有(you)(you)問(wen)(wen)題(ti);如(ru)果(guo)(guo)(guo)是(shi)(shi)沿軸(zhou)向(xiang)噴(pen)漏介質(zhi),動(dong)(dong)(dong)(dong)環(huan)(huan)(huan)(huan)密封(feng)環(huan)(huan)(huan)(huan)(O型環(huan)(huan)(huan)(huan))存(cun)在很多問(wen)(wen)題(ti),如(ru)果(guo)(guo)(guo)是(shi)(shi)周圍噴(pen)漏介質(zhi)或從水冷孔(kong)漏出,多半是(shi)(shi)靜(jing)(jing)環(huan)(huan)(huan)(huan)密封(feng)環(huan)(huan)(huan)(huan)失(shi)效。
二、試運(yun)的滲漏?
靜態試驗后,O型圈高速旋轉產生的離心力會抑制介質的泄漏。因此,試運行時旬陽機械密封的(de)泄漏,基本上是在軸與端蓋之間的(de)密封失效消除后,動(dong)靜(jing)環之間的(de)摩擦副(fu)損壞造(zao)成(cheng)的(de)。
三、停電還是停機?
離心泵正常運行(xing)過程中O型圈突然泄漏(lou),如果不及時發現,往(wang)往(wang)會(hui)導致(zhi)重大事故或損失,應引起重視并采取有效措施。特別是突然停電造成的事故,必須準備(bei)好(hao)電源(yuan)O型圈。
最后提醒大家,泵使用旬陽機械密封時,一次泄漏和二(er)次泄漏是有區別的。只要仔(zi)細觀察,熟悉結構(gou),就能做出(chu)正(zheng)確的判(pan)斷。