掃一掃,加微信
聯系客服,馬上詢價
發布時間:2021-12-16 11:39:59 人氣:100314 來源:
秀洲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。在秀洲機械密封系(xi)(xi)統(tong)(tong)(tong)中,上述系(xi)(xi)統(tong)(tong)(tong)并不(bu)同(tong)時包括在(zai)(zai)內(nei)。密(mi)(mi)(mi)(mi)(mi)(mi)封系(xi)(xi)統(tong)(tong)(tong)的(de)(de)(de)選擇主(zhu)(zhu)要取決于主(zhu)(zhu)密(mi)(mi)(mi)(mi)(mi)(mi)封件的(de)(de)(de)應(ying)(ying)(ying)用范圍。例如,如果(guo)(guo)主(zhu)(zhu)密(mi)(mi)(mi)(mi)(mi)(mi)封用于高(gao)溫(wen)液體,密(mi)(mi)(mi)(mi)(mi)(mi)封系(xi)(xi)統(tong)(tong)(tong)應(ying)(ying)(ying)確(que)保(bao)降低(di)(di)主(zhu)(zhu)密(mi)(mi)(mi)(mi)(mi)(mi)封的(de)(de)(de)環(huan)境溫(wen)度,即(ji)采(cai)用溫(wen)度控制系(xi)(xi)統(tong)(tong)(tong)。如果(guo)(guo)主(zhu)(zhu)密(mi)(mi)(mi)(mi)(mi)(mi)封用于固體雜(za)質(zhi)含(han)量(liang)高(gao)的(de)(de)(de)工(gong)作介(jie)質(zhi),密(mi)(mi)(mi)(mi)(mi)(mi)封系(xi)(xi)統(tong)(tong)(tong)應(ying)(ying)(ying)確(que)保(bao)在(zai)(zai)主(zhu)(zhu)密(mi)(mi)(mi)(mi)(mi)(mi)封前降低(di)(di)固體雜(za)質(zhi)含(han)量(liang),即(ji)采(cai)用除(chu)雜(za)系(xi)(xi)統(tong)(tong)(tong)。在(zai)(zai)腐(fu)(fu)蝕性介(jie)質(zhi)中,密(mi)(mi)(mi)(mi)(mi)(mi)封系(xi)(xi)統(tong)(tong)(tong)必須確(que)保(bao)主(zhu)(zhu)密(mi)(mi)(mi)(mi)(mi)(mi)封降低(di)(di)腐(fu)(fu)蝕速率或消除(chu)腐(fu)(fu)蝕,即(ji)使用流(liu)體而不(bu)是堵塞(sai)流(liu)體系(xi)(xi)統(tong)(tong)(tong);在(zai)(zai)高(gao)壓(ya)密(mi)(mi)(mi)(mi)(mi)(mi)封裝置中,輔助(zhu)系(xi)(xi)統(tong)(tong)(tong)應(ying)(ying)(ying)確(que)保(bao)多級降壓(ya)和其他措施,即(ji)壓(ya)力控制系(xi)(xi)統(tong)(tong)(tong)。
秀洲機械密封的三個主要功能如下:
1、沖洗功能,沖洗是秀洲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。一般的秀洲機械密封應該沖洗,特別是對(dui)于(yu)輕烴泵,沖洗時達到隔離介(jie)質、冷卻和改善潤滑(hua)的目的。隔離介(jie)質的目的可以通過將(jiang)與介(jie)質相容的液體引入(ru)密封腔(qiang)進行外部循環(huan)沖洗來實現(xian)。
2、除雜和過濾功能,密封流體中的微細固體粒子、污垢等雜質對秀洲機械密封造(zao)成(cheng)的(de)(de)危(wei)害非常嚴重(zhong),可(ke)能導致密(mi)封端(duan)面(mian)的(de)(de)磨損,也可(ke)能堵塞(sai)寒冷密(mi)封系統(tong)的(de)(de)管(guan)線。密(mi)封性系統(tong)軟件具有(you)去(qu)除殘(can)渣(zha)、保持(chi)液體清(qing)潔(jie)的(de)(de)作用。當殘(can)渣(zha)的(de)(de)相對密(mi)度(du)(du)小(xiao)于液體媒質相對密(mi)度(du)(du)時,能用過濾裝置(zhi)去(qu)除殘(can)渣(zha);而當殘(can)渣(zha)的(de)(de)相對密(mi)度(du)(du)超過液體媒質相對密(mi)度(du)(du)時,可(ke)選用旋(xuan)液分(fen)離設備(bei)或網式(shi)過濾器(qi)去(qu)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。借助秀洲機械密封可以用雙端秀洲機械密封代替密封介質(zhi),將難以直接密封的介質(zhi)轉化為密封潤滑(hua)性能好(hao)、清潔的密封液體介質(zhi)。