隆子泵用隆子機械密封的O型圈為什么會泄漏失效？一般來說，原因可以從泵的隆子機械密封的安裝、使(shi)用(yong)條(tiao)件、運行速度和停(ting)機故障等(deng)方(fang)面進(jin)行監測原因(yin)。

　　一(yi)、安裝靜(jing)態(tai)試驗(yan)時的泄漏？

　　隆子泵用隆子機械密封安裝調(diao)試(shi)(shi)后，一般需要進(jin)行靜(jing)(jing)態試(shi)(shi)驗，觀(guan)(guan)察(cha)泄(xie)(xie)漏(lou)情況。如(ru)(ru)(ru)果(guo)(guo)(guo)泄(xie)(xie)漏(lou)量(liang)(liang)小，動(dong)(dong)(dong)環(huan)(huan)(huan)(huan)或(huo)靜(jing)(jing)環(huan)(huan)(huan)(huan)密封(feng)圈(quan)有(you)問(wen)題(ti)；當泄(xie)(xie)漏(lou)量(liang)(liang)較(jiao)大時(shi)，表明動(dong)(dong)(dong)靜(jing)(jing)環(huan)(huan)(huan)(huan)摩(mo)(mo)擦副之間存(cun)在問(wen)題(ti)。在初步觀(guan)(guan)察(cha)泄(xie)(xie)漏(lou)量(liang)(liang)和判斷泄(xie)(xie)漏(lou)位置的基(ji)礎上，手動(dong)(dong)(dong)轉(zhuan)動(dong)(dong)(dong)O形(xing)圈(quan)進(jin)行觀(guan)(guan)察(cha)。如(ru)(ru)(ru)果(guo)(guo)(guo)泄(xie)(xie)漏(lou)量(liang)(liang)沒有(you)明顯(xian)變化(hua)(hua)，說明動(dong)(dong)(dong)靜(jing)(jing)環(huan)(huan)(huan)(huan)密封(feng)有(you)問(wen)題(ti)；如(ru)(ru)(ru)果(guo)(guo)(guo)轉(zhuan)動(dong)(dong)(dong)時(shi)泄(xie)(xie)漏(lou)量(liang)(liang)有(you)明顯(xian)變化(hua)(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(mo)(mo)擦副有(you)問(wen)題(ti)；如(ru)(ru)(ru)果(guo)(guo)(guo)是(shi)(shi)沿(yan)軸向噴漏(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)在很多(duo)問(wen)題(ti)，如(ru)(ru)(ru)果(guo)(guo)(guo)是(shi)(shi)周圍噴漏(lou)介質(zhi)或(huo)從水冷孔(kong)漏(lou)出，多(duo)半是(shi)(shi)靜(jing)(jing)環(huan)(huan)(huan)(huan)密封(feng)環(huan)(huan)(huan)(huan)失效。

　　二(er)、試(shi)運的滲漏？

　　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，試運行時隆子機械密封的泄漏(lou)，基本上是在軸與端蓋之(zhi)間(jian)的密封失效消除(chu)后，動靜環(huan)之(zhi)間(jian)的摩擦副損(sun)壞造(zao)成的。

　　三(san)、停電還是停機？

　　離心(xin)泵正常(chang)運行(xing)過程中(zhong)O型(xing)圈突然(ran)泄漏，如果不及時(shi)發現，往往會導(dao)致重(zhong)大(da)事(shi)(shi)故或(huo)損(sun)失，應引起重(zhong)視(shi)并采取有效措施。特別是突然(ran)停(ting)電(dian)造成的事(shi)(shi)故，必須準(zhun)備好電(dian)源O型(xing)圈。

　　最后提醒大家，泵使用隆子機械密封時，一(yi)次泄(xie)漏和二(er)次泄(xie)漏是有(you)區別(bie)的。只要仔(zi)細觀察，熟悉結(jie)構，就能做出正確的判斷。