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興賓機械密封的這三個功能一定要了解

發布時(shi)間:2021-06-01 15:18:27 人氣(qi):183850 來(lai)源(yuan):川工密封

  興賓機械密封包括壓力控制、溫度控制、流體替換(堵塞)和雜質去除系統。在興賓機械密封系統(tong)(tong)(tong)(tong)中(zhong),上述系統(tong)(tong)(tong)(tong)并不(bu)同(tong)時包括在(zai)內。密封系統(tong)(tong)(tong)(tong)的選(xuan)擇主(zhu)(zhu)要取決于(yu)主(zhu)(zhu)密封件的應(ying)用(yong)(yong)范圍。例如,如果主(zhu)(zhu)密封用(yong)(yong)于(yu)高溫液(ye)體(ti),密封系統(tong)(tong)(tong)(tong)應(ying)確保(bao)降(jiang)低主(zhu)(zhu)密封的環境溫度,即(ji)采用(yong)(yong)溫度控(kong)制系統(tong)(tong)(tong)(tong)。如果主(zhu)(zhu)密封用(yong)(yong)于(yu)固體(ti)雜質(zhi)(zhi)含量高的工作介質(zhi)(zhi),密封系統(tong)(tong)(tong)(tong)應(ying)確保(bao)在(zai)主(zhu)(zhu)密封前降(jiang)低固體(ti)雜質(zhi)(zhi)含量,即(ji)采用(yong)(yong)除(chu)雜系統(tong)(tong)(tong)(tong)。在(zai)腐(fu)蝕(shi)性介質(zhi)(zhi)中(zhong),密封系統(tong)(tong)(tong)(tong)必須確保(bao)主(zhu)(zhu)密封降(jiang)低腐(fu)蝕(shi)速率或消除(chu)腐(fu)蝕(shi),即(ji)使用(yong)(yong)流體(ti)而不(bu)是堵塞(sai)流體(ti)系統(tong)(tong)(tong)(tong);在(zai)高壓(ya)密封裝置中(zhong),輔助(zhu)系統(tong)(tong)(tong)(tong)應(ying)確保(bao)多級(ji)降(jiang)壓(ya)和其他(ta)措施,即(ji)壓(ya)力控(kong)制系統(tong)(tong)(tong)(tong)。

  興賓機械密封的三個(ge)主(zhu)要功能如下:

  1、沖洗功能,沖洗是興賓機械密封基本的功能,它直接將液體注入單面密封或雙面密封的高壓側。一般的興賓機械密封應該沖(chong)洗(xi),特別是對于輕烴(jing)泵(beng),沖(chong)洗(xi)時達到隔離介(jie)質(zhi)(zhi)(zhi)、冷卻和改善潤滑的(de)目(mu)的(de)。隔離介(jie)質(zhi)(zhi)(zhi)的(de)目(mu)的(de)可(ke)以通過將與介(jie)質(zhi)(zhi)(zhi)相容的(de)液(ye)體引(yin)入密封腔進行外部循(xun)環沖(chong)洗(xi)來實現。

  2、除雜和過濾功能,密封流體中的微細固體粒子、污垢等雜質對興賓機械密封造成的(de)(de)危(wei)害非(fei)常嚴重,可能(neng)(neng)導致密(mi)封端(duan)面的(de)(de)磨損,也可能(neng)(neng)堵塞寒冷(leng)密(mi)封系(xi)統(tong)的(de)(de)管線(xian)。密(mi)封性系(xi)統(tong)軟件具有去除殘(can)渣(zha)、保(bao)持液體清潔的(de)(de)作用(yong)。當(dang)殘(can)渣(zha)的(de)(de)相(xiang)對密(mi)度小于液體媒質(zhi)相(xiang)對密(mi)度時,能(neng)(neng)用(yong)過濾(lv)(lv)裝置去除殘(can)渣(zha);而(er)當(dang)殘(can)渣(zha)的(de)(de)相(xiang)對密(mi)度超過液體媒質(zhi)相(xiang)對密(mi)度時,可選用(yong)旋液分離設備或網式過濾(lv)(lv)器去除殘(can)渣(zha)。

  3、流體替代功能,含有固體顆粒的氣相介質和液相介質的直接密封難度很大,它們溫、毒、貴、易蒸發、易結晶。借助興賓機械密封可以用雙端興賓機械密封代替(ti)密封(feng)(feng)介質,將難以直接密封(feng)(feng)的介質轉化為密封(feng)(feng)潤滑性能好、清潔的密封(feng)(feng)液體介質。