潤州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。在潤州機械密封系(xi)(xi)統(tong)(tong)(tong)(tong)中，上述(shu)系(xi)(xi)統(tong)(tong)(tong)(tong)并不同(tong)時包括在(zai)內。密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)(feng)系(xi)(xi)統(tong)(tong)(tong)(tong)的選擇主(zhu)(zhu)(zhu)要(yao)取決(jue)于主(zhu)(zhu)(zhu)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)(feng)件的應(ying)(ying)用(yong)范圍。例(li)如，如果主(zhu)(zhu)(zhu)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)(feng)用(yong)于高溫液體(ti)(ti)，密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)(feng)系(xi)(xi)統(tong)(tong)(tong)(tong)應(ying)(ying)確保(bao)(bao)(bao)(bao)降(jiang)(jiang)低主(zhu)(zhu)(zhu)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)(feng)的環境(jing)溫度(du)，即采用(yong)溫度(du)控制(zhi)系(xi)(xi)統(tong)(tong)(tong)(tong)。如果主(zhu)(zhu)(zhu)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)(feng)用(yong)于固(gu)體(ti)(ti)雜質(zhi)含量(liang)高的工(gong)作介質(zhi)，密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)(feng)系(xi)(xi)統(tong)(tong)(tong)(tong)應(ying)(ying)確保(bao)(bao)(bao)(bao)在(zai)主(zhu)(zhu)(zhu)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)(feng)前降(jiang)(jiang)低固(gu)體(ti)(ti)雜質(zhi)含量(liang)，即采用(yong)除雜系(xi)(xi)統(tong)(tong)(tong)(tong)。在(zai)腐蝕(shi)性介質(zhi)中，密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)(feng)系(xi)(xi)統(tong)(tong)(tong)(tong)必(bi)須確保(bao)(bao)(bao)(bao)主(zhu)(zhu)(zhu)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)(feng)降(jiang)(jiang)低腐蝕(shi)速率或消除腐蝕(shi)，即使用(yong)流體(ti)(ti)而不是堵塞流體(ti)(ti)系(xi)(xi)統(tong)(tong)(tong)(tong)；在(zai)高壓(ya)(ya)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)(feng)裝置中，輔(fu)助系(xi)(xi)統(tong)(tong)(tong)(tong)應(ying)(ying)確保(bao)(bao)(bao)(bao)多級降(jiang)(jiang)壓(ya)(ya)和其他措施，即壓(ya)(ya)力控制(zhi)系(xi)(xi)統(tong)(tong)(tong)(tong)。

　　潤州機械密封的(de)三個主要功能如下：

　　1、沖洗功能，沖洗是潤州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。一般的潤州機械密封應該沖洗(xi)，特別是對于輕烴泵，沖洗(xi)時達到隔離(li)介(jie)質、冷卻和改善潤(run)滑的(de)目的(de)。隔離(li)介(jie)質的(de)目的(de)可以(yi)通過將(jiang)與介(jie)質相容的(de)液體引入(ru)密(mi)封腔進行(xing)外部循環(huan)沖洗(xi)來實現。

　　2、除雜和過濾功能，密封流體中的微細固體粒子、污垢等雜質對潤州機械密封造成的(de)危害非常(chang)嚴重，可(ke)能(neng)導(dao)致(zhi)密(mi)封(feng)端面的(de)磨損，也(ye)可(ke)能(neng)堵(du)塞寒(han)冷密(mi)封(feng)系統的(de)管線。密(mi)封(feng)性系統軟件具有去除(chu)(chu)殘(can)(can)渣(zha)、保持液(ye)體(ti)清潔(jie)的(de)作用(yong)。當殘(can)(can)渣(zha)的(de)相(xiang)(xiang)對(dui)(dui)(dui)密(mi)度(du)小于液(ye)體(ti)媒質(zhi)相(xiang)(xiang)對(dui)(dui)(dui)密(mi)度(du)時(shi)，能(neng)用(yong)過(guo)濾裝置去除(chu)(chu)殘(can)(can)渣(zha)；而當殘(can)(can)渣(zha)的(de)相(xiang)(xiang)對(dui)(dui)(dui)密(mi)度(du)超過(guo)液(ye)體(ti)媒質(zhi)相(xiang)(xiang)對(dui)(dui)(dui)密(mi)度(du)時(shi)，可(ke)選用(yong)旋液(ye)分離設備或網式過(guo)濾器(qi)去除(chu)(chu)殘(can)(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。借助潤州機械密封可以用雙端潤州機械密封代替(ti)密(mi)(mi)封(feng)介質，將難以(yi)直接密(mi)(mi)封(feng)的介質轉化為密(mi)(mi)封(feng)潤滑性能好(hao)、清潔的密(mi)(mi)封(feng)液體介質。