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調樓鎮為什么泵的機械密封的O型圈會泄漏和失效

發布時間:2021-06-01 15:02:51 人氣:160660 來源:川(chuan)工密封

  調樓鎮泵用調樓鎮機械密封的O型圈為什么會泄漏失效?一般來說,原因可以從泵的調樓鎮機械密封的安(an)裝、使用(yong)條件、運行速度和停機故障等方面進行監(jian)測原(yuan)因。

  一、安裝靜態試驗時的泄漏(lou)?

  調樓鎮泵用調樓鎮機械密封安(an)裝調試后,一般需要進(jin)行(xing)靜(jing)(jing)態試驗(yan),觀(guan)察泄(xie)(xie)(xie)漏(lou)(lou)(lou)情況。如(ru)果(guo)(guo)(guo)泄(xie)(xie)(xie)漏(lou)(lou)(lou)量(liang)小,動(dong)(dong)(dong)環(huan)(huan)(huan)(huan)或靜(jing)(jing)環(huan)(huan)(huan)(huan)密封(feng)圈有(you)問(wen)題;當(dang)泄(xie)(xie)(xie)漏(lou)(lou)(lou)量(liang)較(jiao)大時,表明(ming)動(dong)(dong)(dong)靜(jing)(jing)環(huan)(huan)(huan)(huan)摩擦副(fu)之間存(cun)在(zai)問(wen)題。在(zai)初步觀(guan)察泄(xie)(xie)(xie)漏(lou)(lou)(lou)量(liang)和判斷泄(xie)(xie)(xie)漏(lou)(lou)(lou)位(wei)置的基礎上,手(shou)動(dong)(dong)(dong)轉動(dong)(dong)(dong)O形圈進(jin)行(xing)觀(guan)察。如(ru)果(guo)(guo)(guo)泄(xie)(xie)(xie)漏(lou)(lou)(lou)量(liang)沒(mei)有(you)明(ming)顯(xian)變化(hua),說明(ming)動(dong)(dong)(dong)靜(jing)(jing)環(huan)(huan)(huan)(huan)密封(feng)有(you)問(wen)題;如(ru)果(guo)(guo)(guo)轉動(dong)(dong)(dong)時泄(xie)(xie)(xie)漏(lou)(lou)(lou)量(liang)有(you)明(ming)顯(xian)變化(hua),可以斷定動(dong)(dong)(dong)環(huan)(huan)(huan)(huan)和靜(jing)(jing)環(huan)(huan)(huan)(huan)的摩擦副(fu)有(you)問(wen)題;如(ru)果(guo)(guo)(guo)是(shi)沿軸(zhou)向噴漏(lou)(lou)(lou)介質(zhi),動(dong)(dong)(dong)環(huan)(huan)(huan)(huan)密封(feng)環(huan)(huan)(huan)(huan)(O型(xing)環(huan)(huan)(huan)(huan))存(cun)在(zai)很多(duo)問(wen)題,如(ru)果(guo)(guo)(guo)是(shi)周圍噴漏(lou)(lou)(lou)介質(zhi)或從水冷孔漏(lou)(lou)(lou)出(chu),多(duo)半(ban)是(shi)靜(jing)(jing)環(huan)(huan)(huan)(huan)密封(feng)環(huan)(huan)(huan)(huan)失效。

  二(er)、試運的(de)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,試運行時調樓鎮機械密封的(de)(de)泄(xie)漏,基本(ben)上是(shi)在(zai)軸與端蓋之(zhi)間(jian)(jian)的(de)(de)密封(feng)失效(xiao)消除后(hou),動靜(jing)環之(zhi)間(jian)(jian)的(de)(de)摩擦副損壞造成的(de)(de)。

  三、停電還(huan)是停機(ji)?

  離心泵正常運行過程中O型(xing)圈(quan)突(tu)然泄(xie)漏,如果不及時發現,往往會導致重大事(shi)故或損失(shi),應引(yin)起重視并(bing)采取有效措施。特(te)別是突(tu)然停電造成的事(shi)故,必須(xu)準備好電源O型(xing)圈(quan)。

  最后提醒大家,泵使用調樓鎮機械密封時(shi),一(yi)次(ci)泄漏(lou)(lou)和二(er)次(ci)泄漏(lou)(lou)是有區別的。只要仔細(xi)觀察,熟悉結構,就能做出正確的判斷。