掃一掃,加微信
聯系客服,馬上詢價
發布時(shi)間:2021-12-10 15:49:48 人氣:130011 來源:
雙流機械密封又叫(jiao)端面(mian)(mian)密封,在(zai)有關標準中是這樣解說的(de)(de):由至(zhi)少一對(dui)垂直于(yu)旋轉軸線(xian)的(de)(de)端面(mian)(mian)在(zai)流體壓力和(he)補(bu)償機構彈力的(de)(de)作用以及(ji)輔助密封的(de)(de)配合下保持貼合并(bing)相對(dui)滑(hua)動而(er)構成的(de)(de)防止流體泄漏的(de)(de)裝置。
雙流機械密封自身壓(ya)(ya)力增(zeng)(zeng)壓(ya)(ya)系統結構包括出水口、固(gu)(gu)(gu)(gu)定法(fa)蘭、泵(beng)(beng)(beng)體、增(zeng)(zeng)壓(ya)(ya)裝置、電機轉子、吊環、防護罩、水泵(beng)(beng)(beng)、固(gu)(gu)(gu)(gu)定基座(zuo)(zuo)(zuo)(zuo)、底(di)座(zuo)(zuo)(zuo)(zuo)、加固(gu)(gu)(gu)(gu)件(jian)(jian)(jian)、控制(zhi)閥、緊(jin)固(gu)(gu)(gu)(gu)件(jian)(jian)(jian),所述(shu)出水口與(yu)(yu)(yu)固(gu)(gu)(gu)(gu)定法(fa)蘭相(xiang)連(lian)(lian)(lian)(lian)接,泵(beng)(beng)(beng)體與(yu)(yu)(yu)增(zeng)(zeng)壓(ya)(ya)裝置相(xiang)連(lian)(lian)(lian)(lian)接,增(zeng)(zeng)壓(ya)(ya)裝置由(you)進(jin)水口、水管、負(fu)壓(ya)(ya)室、平(ping)衡(heng)(heng)固(gu)(gu)(gu)(gu)定盤(pan)、緊(jin)固(gu)(gu)(gu)(gu)支(zhi)(zhi)架(jia)組成,進(jin)水口與(yu)(yu)(yu)水管相(xiang)連(lian)(lian)(lian)(lian)接,水管與(yu)(yu)(yu)負(fu)壓(ya)(ya)室相(xiang)連(lian)(lian)(lian)(lian)接,負(fu)壓(ya)(ya)室通過(guo)平(ping)衡(heng)(heng)固(gu)(gu)(gu)(gu)定盤(pan)保持平(ping)衡(heng)(heng),緊(jin)固(gu)(gu)(gu)(gu)支(zhi)(zhi)架(jia)與(yu)(yu)(yu)泵(beng)(beng)(beng)體固(gu)(gu)(gu)(gu)定連(lian)(lian)(lian)(lian)接,防護罩與(yu)(yu)(yu)水泵(beng)(beng)(beng)相(xiang)連(lian)(lian)(lian)(lian)接,水泵(beng)(beng)(beng)與(yu)(yu)(yu)固(gu)(gu)(gu)(gu)定基座(zuo)(zuo)(zuo)(zuo)相(xiang)連(lian)(lian)(lian)(lian)接,固(gu)(gu)(gu)(gu)定基座(zuo)(zuo)(zuo)(zuo)與(yu)(yu)(yu)底(di)座(zuo)(zuo)(zuo)(zuo)緊(jin)固(gu)(gu)(gu)(gu)連(lian)(lian)(lian)(lian)接,底(di)座(zuo)(zuo)(zuo)(zuo)上設有加固(gu)(gu)(gu)(gu)件(jian)(jian)(jian),緊(jin)固(gu)(gu)(gu)(gu)件(jian)(jian)(jian)與(yu)(yu)(yu)底(di)座(zuo)(zuo)(zuo)(zuo)固(gu)(gu)(gu)(gu)定連(lian)(lian)(lian)(lian)接。
動環和靜環的總稱叫做密封環,是構成雙流機械密封件主要的元件。密封環在很大程度上決定了雙流機械密封件的使用性能和壽命,所以雙流機械密封件(jian)對密封環有一(yi)些(xie)特(te)定的要求。
一、密封(feng)環要容(rong)易加工制(zhi)造
二(er)、安裝和(he)維修(xiu)要(yao)方便(bian),價格(ge)要(yao)低廉。
三、密封環(huan)要(yao)有(you)良好(hao)的(de)耐熱(re)沖擊能(neng)力,因此材料要(yao)有(you)較高(gao)的(de)導熱(re)系數(shu)和(he)較小的(de)線(xian)膨脹系數(shu),承受熱(re)沖擊時不至于(yu)開(kai)裂。
四、密(mi)封環要有良(liang)好的(de)自潤滑性,防止工作中發生(sheng)短(duan)時(shi)間的(de)干摩擦,不損傷密(mi)封端面(mian)。因此,密(mi)封環材(cai)料與密(mi)封流體還要有很(hen)好的(de)浸(jin)潤性。
五、結構簡單
密(mi)封環結(jie)構簡單對稱,優先(xian)考慮用整體型結(jie)構,也可采(cai)用組(zu)合式密(mi)封環,盡量避免(mian)用密(mi)封端面噴(pen)涂式結(jie)構。
六、有足夠(gou)的強度和剛度
雙流機械密封件(jian)在工作條件(jian)下不損壞,變形(xing)應盡量的小,工作條件(jian)波(bo)動時仍能保(bao)持(chi)密封性。尤(you)其是密封端面(mian)要有足夠的強(qiang)度以及一定的耐腐(fu)蝕能力(li),保(bao)證產品的使用壽(shou)命(ming)。