五峰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。在五峰機械密封系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)中(zhong)，上(shang)述系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)并不(bu)同(tong)時包括在內。密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)的(de)選擇(ze)主(zhu)(zhu)(zhu)要取決于主(zhu)(zhu)(zhu)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)件的(de)應用范圍(wei)。例(li)如，如果主(zhu)(zhu)(zhu)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)用于高溫(wen)液體，密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)應確保(bao)降(jiang)低主(zhu)(zhu)(zhu)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)的(de)環境溫(wen)度，即(ji)采用溫(wen)度控制系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)。如果主(zhu)(zhu)(zhu)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)用于固體雜(za)質(zhi)(zhi)含(han)量(liang)高的(de)工作介(jie)質(zhi)(zhi)，密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)應確保(bao)在主(zhu)(zhu)(zhu)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)前降(jiang)低固體雜(za)質(zhi)(zhi)含(han)量(liang)，即(ji)采用除(chu)雜(za)系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)。在腐蝕(shi)性介(jie)質(zhi)(zhi)中(zhong)，密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)必須確保(bao)主(zhu)(zhu)(zhu)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)降(jiang)低腐蝕(shi)速率或(huo)消除(chu)腐蝕(shi)，即(ji)使用流體而(er)不(bu)是堵塞流體系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)；在高壓(ya)(ya)(ya)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)裝置(zhi)中(zhong)，輔助系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)應確保(bao)多級降(jiang)壓(ya)(ya)(ya)和其(qi)他措施(shi)，即(ji)壓(ya)(ya)(ya)力控制系(xi)(xi)統(tong)(tong)(tong)(tong)(tong)。

　　五峰機械密封的三個主要功能如下：

　　1、沖洗功能，沖洗是五峰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。一般的五峰機械密封應該沖洗，特別是對于輕烴(jing)泵，沖洗時達到隔(ge)離介(jie)質、冷卻和改善潤滑的目的。隔(ge)離介(jie)質的目的可以通過將與介(jie)質相容的液體引入密封腔進(jin)行外部循環沖洗來實現。

　　2、除雜和過濾功能，密封流體中的微細固體粒子、污垢等雜質對五峰機械密封造成的(de)(de)危害非常嚴重，可(ke)能(neng)導(dao)致密(mi)(mi)(mi)封端面的(de)(de)磨損，也可(ke)能(neng)堵塞寒冷(leng)密(mi)(mi)(mi)封系統的(de)(de)管線。密(mi)(mi)(mi)封性系統軟件具有(you)去除(chu)殘(can)渣(zha)、保持液(ye)體(ti)(ti)清潔的(de)(de)作用(yong)。當殘(can)渣(zha)的(de)(de)相(xiang)對(dui)密(mi)(mi)(mi)度小于液(ye)體(ti)(ti)媒(mei)質相(xiang)對(dui)密(mi)(mi)(mi)度時，能(neng)用(yong)過濾(lv)裝置(zhi)去除(chu)殘(can)渣(zha)；而當殘(can)渣(zha)的(de)(de)相(xiang)對(dui)密(mi)(mi)(mi)度超過液(ye)體(ti)(ti)媒(mei)質相(xiang)對(dui)密(mi)(mi)(mi)度時，可(ke)選用(yong)旋液(ye)分離設備或網式過濾(lv)器(qi)去除(chu)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。借助五峰機械密封可以用雙端五峰機械密封代替(ti)密(mi)封介(jie)質(zhi)，將難(nan)以直接密(mi)封的介(jie)質(zhi)轉化(hua)為密(mi)封潤滑(hua)性能好、清潔的密(mi)封液體(ti)介(jie)質(zhi)。