掃一掃,加微信
聯系客服,馬上詢價
發布(bu)時(shi)間:2021-06-01 15:18:27 人氣:182801 來源:川工密(mi)封
安吉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。在安吉機械密封系統(tong)(tong)(tong)中(zhong),上述系統(tong)(tong)(tong)并(bing)不同時(shi)包括在(zai)(zai)(zai)內。密(mi)封(feng)(feng)(feng)(feng)系統(tong)(tong)(tong)的(de)(de)選擇(ze)主(zhu)(zhu)(zhu)要取決于主(zhu)(zhu)(zhu)密(mi)封(feng)(feng)(feng)(feng)件的(de)(de)應(ying)(ying)用(yong)范圍。例如(ru),如(ru)果主(zhu)(zhu)(zhu)密(mi)封(feng)(feng)(feng)(feng)用(yong)于高溫(wen)(wen)(wen)液體(ti),密(mi)封(feng)(feng)(feng)(feng)系統(tong)(tong)(tong)應(ying)(ying)確保降(jiang)低(di)主(zhu)(zhu)(zhu)密(mi)封(feng)(feng)(feng)(feng)的(de)(de)環境溫(wen)(wen)(wen)度(du),即(ji)采(cai)(cai)用(yong)溫(wen)(wen)(wen)度(du)控(kong)制系統(tong)(tong)(tong)。如(ru)果主(zhu)(zhu)(zhu)密(mi)封(feng)(feng)(feng)(feng)用(yong)于固體(ti)雜(za)質(zhi)含(han)量(liang)高的(de)(de)工作介質(zhi),密(mi)封(feng)(feng)(feng)(feng)系統(tong)(tong)(tong)應(ying)(ying)確保在(zai)(zai)(zai)主(zhu)(zhu)(zhu)密(mi)封(feng)(feng)(feng)(feng)前降(jiang)低(di)固體(ti)雜(za)質(zhi)含(han)量(liang),即(ji)采(cai)(cai)用(yong)除(chu)雜(za)系統(tong)(tong)(tong)。在(zai)(zai)(zai)腐(fu)(fu)蝕(shi)性介質(zhi)中(zhong),密(mi)封(feng)(feng)(feng)(feng)系統(tong)(tong)(tong)必須確保主(zhu)(zhu)(zhu)密(mi)封(feng)(feng)(feng)(feng)降(jiang)低(di)腐(fu)(fu)蝕(shi)速率(lv)或消(xiao)除(chu)腐(fu)(fu)蝕(shi),即(ji)使用(yong)流體(ti)而(er)不是堵塞流體(ti)系統(tong)(tong)(tong);在(zai)(zai)(zai)高壓(ya)密(mi)封(feng)(feng)(feng)(feng)裝(zhuang)置中(zhong),輔助(zhu)系統(tong)(tong)(tong)應(ying)(ying)確保多級降(jiang)壓(ya)和其他(ta)措施,即(ji)壓(ya)力控(kong)制系統(tong)(tong)(tong)。
安吉機械密封的三(san)個主要(yao)功(gong)能(neng)如下:
1、沖洗功能,沖洗是安吉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。一般的安吉機械密封應該沖(chong)洗,特別是對于(yu)輕烴(jing)泵,沖(chong)洗時達到(dao)隔離介質、冷(leng)卻和改(gai)善潤滑的(de)目的(de)。隔離介質的(de)目的(de)可以(yi)通過將與介質相容(rong)的(de)液體引(yin)入密(mi)封腔進行外部循環沖(chong)洗來實現。
2、除雜和過濾功能,密封流體中的微細固體粒子、污垢等雜質對安吉機械密封造成的危害非(fei)常嚴重,可(ke)能(neng)導致密(mi)封端(duan)面(mian)的磨損(sun),也可(ke)能(neng)堵塞(sai)寒冷密(mi)封系統的管線。密(mi)封性系統軟件具有去(qu)除(chu)(chu)殘渣(zha)(zha)(zha)、保(bao)持液(ye)體(ti)清潔的作用。當殘渣(zha)(zha)(zha)的相(xiang)對(dui)(dui)密(mi)度小于液(ye)體(ti)媒質(zhi)相(xiang)對(dui)(dui)密(mi)度時(shi)(shi),能(neng)用過(guo)濾(lv)裝(zhuang)置去(qu)除(chu)(chu)殘渣(zha)(zha)(zha);而當殘渣(zha)(zha)(zha)的相(xiang)對(dui)(dui)密(mi)度超(chao)過(guo)液(ye)體(ti)媒質(zhi)相(xiang)對(dui)(dui)密(mi)度時(shi)(shi),可(ke)選用旋液(ye)分離設備或網(wang)式過(guo)濾(lv)器去(qu)除(chu)(chu)殘渣(zha)(zha)(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。借助安吉機械密封可以用雙端安吉機械密封代替密(mi)封介(jie)質(zhi)(zhi),將難以直接密(mi)封的介(jie)質(zhi)(zhi)轉化為密(mi)封潤滑性能好、清潔(jie)的密(mi)封液體(ti)介(jie)質(zhi)(zhi)。