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發布(bu)時間:2021-06-01 15:18:27 人氣:178794 來源:川工密封
信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。在信州機械密封系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)中(zhong),上述系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)并(bing)不同(tong)時包(bao)括在內。密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)的(de)選擇(ze)主(zhu)(zhu)要取(qu)決于(yu)主(zhu)(zhu)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)件的(de)應(ying)用范圍。例如(ru),如(ru)果主(zhu)(zhu)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)用于(yu)高(gao)溫液體(ti),密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)應(ying)確(que)(que)保降低主(zhu)(zhu)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)的(de)環(huan)境溫度,即(ji)(ji)采用溫度控(kong)(kong)制(zhi)系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)。如(ru)果主(zhu)(zhu)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)用于(yu)固(gu)體(ti)雜(za)(za)質(zhi)(zhi)含(han)(han)量高(gao)的(de)工作(zuo)介質(zhi)(zhi),密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)應(ying)確(que)(que)保在主(zhu)(zhu)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)前(qian)降低固(gu)體(ti)雜(za)(za)質(zhi)(zhi)含(han)(han)量,即(ji)(ji)采用除雜(za)(za)系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)。在腐(fu)(fu)蝕性介質(zhi)(zhi)中(zhong),密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)必(bi)須確(que)(que)保主(zhu)(zhu)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)降低腐(fu)(fu)蝕速率或消(xiao)除腐(fu)(fu)蝕,即(ji)(ji)使(shi)用流(liu)體(ti)而不是堵塞(sai)流(liu)體(ti)系(xi)(xi)(xi)(xi)統(tong)(tong)(tong);在高(gao)壓(ya)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)裝置中(zhong),輔助系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)應(ying)確(que)(que)保多級(ji)降壓(ya)和其(qi)他措施,即(ji)(ji)壓(ya)力控(kong)(kong)制(zhi)系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)。
信州機械密封的三個主要功(gong)能如下:
1、沖洗功能,沖洗是信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。一般的信州機械密封應該沖洗,特別(bie)是對于(yu)輕烴(jing)泵,沖洗時(shi)達(da)到隔(ge)離(li)介(jie)質(zhi)(zhi)、冷卻(que)和改善潤滑的(de)(de)目的(de)(de)。隔(ge)離(li)介(jie)質(zhi)(zhi)的(de)(de)目的(de)(de)可以(yi)通過(guo)將與介(jie)質(zhi)(zhi)相(xiang)容的(de)(de)液體引入密(mi)封腔進(jin)行外(wai)部循環(huan)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、污垢等雜質對信州機械密封造(zao)成的(de)危害(hai)非常(chang)嚴重,可能(neng)導致密(mi)封(feng)(feng)端面的(de)磨損(sun),也可能(neng)堵塞寒冷密(mi)封(feng)(feng)系統的(de)管(guan)線(xian)。密(mi)封(feng)(feng)性系統軟件具有(you)去除殘(can)渣、保(bao)持(chi)液體清(qing)潔的(de)作用(yong)。當(dang)殘(can)渣的(de)相(xiang)(xiang)對(dui)密(mi)度(du)小于液體媒質(zhi)相(xiang)(xiang)對(dui)密(mi)度(du)時,能(neng)用(yong)過濾(lv)裝置去除殘(can)渣;而當(dang)殘(can)渣的(de)相(xiang)(xiang)對(dui)密(mi)度(du)超過液體媒質(zhi)相(xiang)(xiang)對(dui)密(mi)度(du)時,可選用(yong)旋液分離(li)設(she)備或網式過濾(lv)器去除殘(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。借助信州機械密封可以用雙端信州機械密封代替(ti)密(mi)封(feng)介(jie)質(zhi),將難(nan)以直接密(mi)封(feng)的介(jie)質(zhi)轉化為密(mi)封(feng)潤滑性(xing)能好、清潔的密(mi)封(feng)液(ye)體介(jie)質(zhi)。