掃一掃,加微信
聯系客服,馬上詢價
發布時間:2021-06-01 15:18:27 人氣:183826 來源(yuan):川工密封
琿春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。在琿春機械密封系(xi)(xi)統(tong)(tong)(tong)中(zhong),上述系(xi)(xi)統(tong)(tong)(tong)并不(bu)同時包括在(zai)內。密(mi)(mi)(mi)(mi)封(feng)系(xi)(xi)統(tong)(tong)(tong)的選擇主(zhu)要(yao)取決(jue)于主(zhu)密(mi)(mi)(mi)(mi)封(feng)件的應用范圍。例如,如果主(zhu)密(mi)(mi)(mi)(mi)封(feng)用于高(gao)溫液體(ti)(ti),密(mi)(mi)(mi)(mi)封(feng)系(xi)(xi)統(tong)(tong)(tong)應確(que)(que)保降(jiang)低(di)主(zhu)密(mi)(mi)(mi)(mi)封(feng)的環境(jing)溫度,即(ji)采(cai)用溫度控制系(xi)(xi)統(tong)(tong)(tong)。如果主(zhu)密(mi)(mi)(mi)(mi)封(feng)用于固(gu)體(ti)(ti)雜(za)質含(han)量高(gao)的工(gong)作介質,密(mi)(mi)(mi)(mi)封(feng)系(xi)(xi)統(tong)(tong)(tong)應確(que)(que)保在(zai)主(zhu)密(mi)(mi)(mi)(mi)封(feng)前(qian)降(jiang)低(di)固(gu)體(ti)(ti)雜(za)質含(han)量,即(ji)采(cai)用除雜(za)系(xi)(xi)統(tong)(tong)(tong)。在(zai)腐蝕(shi)性介質中(zhong),密(mi)(mi)(mi)(mi)封(feng)系(xi)(xi)統(tong)(tong)(tong)必須確(que)(que)保主(zhu)密(mi)(mi)(mi)(mi)封(feng)降(jiang)低(di)腐蝕(shi)速率或(huo)消除腐蝕(shi),即(ji)使用流(liu)體(ti)(ti)而不(bu)是堵塞流(liu)體(ti)(ti)系(xi)(xi)統(tong)(tong)(tong);在(zai)高(gao)壓密(mi)(mi)(mi)(mi)封(feng)裝(zhuang)置中(zhong),輔(fu)助(zhu)系(xi)(xi)統(tong)(tong)(tong)應確(que)(que)保多級降(jiang)壓和其(qi)他措(cuo)施,即(ji)壓力控制系(xi)(xi)統(tong)(tong)(tong)。
琿春機械密封的三個主要功能(neng)如下:
1、沖洗功能,沖洗是琿春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。一般的琿春機械密封應該沖(chong)洗,特別(bie)是對(dui)于輕烴(jing)泵,沖(chong)洗時達(da)到隔離(li)介質(zhi)、冷卻(que)和改善潤滑的(de)(de)(de)(de)目的(de)(de)(de)(de)。隔離(li)介質(zhi)的(de)(de)(de)(de)目的(de)(de)(de)(de)可以通(tong)過將與(yu)介質(zhi)相容的(de)(de)(de)(de)液體引入(ru)密封腔進行外部循(xun)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、污垢等雜質對琿春機械密封造成的危害非常嚴重(zhong),可能導致密封(feng)端面的磨(mo)損(sun),也可能堵塞寒冷(leng)密封(feng)系統的管線。密封(feng)性系統軟件(jian)具有去(qu)除(chu)殘(can)渣、保持(chi)液(ye)體(ti)清潔的作用(yong)(yong)。當殘(can)渣的相對(dui)密度(du)(du)(du)小于液(ye)體(ti)媒(mei)質相對(dui)密度(du)(du)(du)時,能用(yong)(yong)過濾(lv)裝置去(qu)除(chu)殘(can)渣;而(er)當殘(can)渣的相對(dui)密度(du)(du)(du)超過液(ye)體(ti)媒(mei)質相對(dui)密度(du)(du)(du)時,可選用(yong)(yong)旋(xuan)液(ye)分離設(she)備或(huo)網式過濾(lv)器(qi)去(qu)除(chu)殘(can)渣。
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。借助琿春機械密封可以用雙端琿春機械密封代(dai)替(ti)密(mi)封(feng)介(jie)(jie)質(zhi)(zhi),將難以直接密(mi)封(feng)的(de)介(jie)(jie)質(zhi)(zhi)轉化為密(mi)封(feng)潤滑性(xing)能好、清(qing)潔的(de)密(mi)封(feng)液體介(jie)(jie)質(zhi)(zhi)。