羅平機械密封又(you)叫端面密封，在(zai)有關標準(zhun)中(zhong)是這(zhe)樣解說的(de)(de)：由至少一對(dui)垂直于(yu)旋(xuan)轉軸線(xian)的(de)(de)端面在(zai)流體壓力(li)和補償(chang)機構彈力(li)的(de)(de)作用以及輔助(zhu)密封的(de)(de)配合下保(bao)持貼合并相(xiang)對(dui)滑動(dong)而(er)構成(cheng)的(de)(de)防止(zhi)流體泄漏(lou)的(de)(de)裝置。

　　羅平機械密封自(zi)身壓(ya)(ya)力增(zeng)壓(ya)(ya)系統結構包括出(chu)水(shui)(shui)(shui)口、固(gu)(gu)(gu)(gu)(gu)(gu)定(ding)(ding)(ding)法(fa)蘭、泵(beng)體、增(zeng)壓(ya)(ya)裝(zhuang)置(zhi)、電機轉子、吊環(huan)、防(fang)護罩(zhao)、水(shui)(shui)(shui)泵(beng)、固(gu)(gu)(gu)(gu)(gu)(gu)定(ding)(ding)(ding)基(ji)座、底(di)(di)(di)座、加固(gu)(gu)(gu)(gu)(gu)(gu)件(jian)(jian)、控制(zhi)閥、緊(jin)固(gu)(gu)(gu)(gu)(gu)(gu)件(jian)(jian)，所述出(chu)水(shui)(shui)(shui)口與(yu)固(gu)(gu)(gu)(gu)(gu)(gu)定(ding)(ding)(ding)法(fa)蘭相(xiang)(xiang)連(lian)(lian)(lian)(lian)接(jie)(jie)(jie)，泵(beng)體與(yu)增(zeng)壓(ya)(ya)裝(zhuang)置(zhi)相(xiang)(xiang)連(lian)(lian)(lian)(lian)接(jie)(jie)(jie)，增(zeng)壓(ya)(ya)裝(zhuang)置(zhi)由進水(shui)(shui)(shui)口、水(shui)(shui)(shui)管(guan)、負(fu)壓(ya)(ya)室、平衡(heng)(heng)固(gu)(gu)(gu)(gu)(gu)(gu)定(ding)(ding)(ding)盤(pan)、緊(jin)固(gu)(gu)(gu)(gu)(gu)(gu)支架組成，進水(shui)(shui)(shui)口與(yu)水(shui)(shui)(shui)管(guan)相(xiang)(xiang)連(lian)(lian)(lian)(lian)接(jie)(jie)(jie)，水(shui)(shui)(shui)管(guan)與(yu)負(fu)壓(ya)(ya)室相(xiang)(xiang)連(lian)(lian)(lian)(lian)接(jie)(jie)(jie)，負(fu)壓(ya)(ya)室通(tong)過(guo)平衡(heng)(heng)固(gu)(gu)(gu)(gu)(gu)(gu)定(ding)(ding)(ding)盤(pan)保(bao)持(chi)平衡(heng)(heng)，緊(jin)固(gu)(gu)(gu)(gu)(gu)(gu)支架與(yu)泵(beng)體固(gu)(gu)(gu)(gu)(gu)(gu)定(ding)(ding)(ding)連(lian)(lian)(lian)(lian)接(jie)(jie)(jie)，防(fang)護罩(zhao)與(yu)水(shui)(shui)(shui)泵(beng)相(xiang)(xiang)連(lian)(lian)(lian)(lian)接(jie)(jie)(jie)，水(shui)(shui)(shui)泵(beng)與(yu)固(gu)(gu)(gu)(gu)(gu)(gu)定(ding)(ding)(ding)基(ji)座相(xiang)(xiang)連(lian)(lian)(lian)(lian)接(jie)(jie)(jie)，固(gu)(gu)(gu)(gu)(gu)(gu)定(ding)(ding)(ding)基(ji)座與(yu)底(di)(di)(di)座緊(jin)固(gu)(gu)(gu)(gu)(gu)(gu)連(lian)(lian)(lian)(lian)接(jie)(jie)(jie)，底(di)(di)(di)座上設有加固(gu)(gu)(gu)(gu)(gu)(gu)件(jian)(jian)，緊(jin)固(gu)(gu)(gu)(gu)(gu)(gu)件(jian)(jian)與(yu)底(di)(di)(di)座固(gu)(gu)(gu)(gu)(gu)(gu)定(ding)(ding)(ding)連(lian)(lian)(lian)(lian)接(jie)(jie)(jie)。

　　動環和靜環的總稱叫做密封環，是構成羅平機械密封件主要的元件。密封環在很大程度上決定了羅平機械密封件的使用性能和壽命，所以羅平機械密封件對密封(feng)環有(you)一些特定的(de)要求。

　　一(yi)、密封環要容(rong)易加工制造(zao)

　　二、安(an)裝(zhuang)和維修要方便，價格要低(di)廉。

　　三、密封環要(yao)(yao)有(you)良好的(de)耐(nai)熱沖(chong)擊(ji)(ji)能力，因此材料要(yao)(yao)有(you)較高(gao)的(de)導(dao)熱系數(shu)(shu)和較小的(de)線膨脹系數(shu)(shu)，承受熱沖(chong)擊(ji)(ji)時(shi)不至(zhi)于開裂。

　　四、密(mi)(mi)封環(huan)要有良好的(de)(de)自潤滑性，防止工作中(zhong)發生短時間的(de)(de)干摩擦，不損(sun)傷密(mi)(mi)封端面(mian)。因此，密(mi)(mi)封環(huan)材料(liao)與密(mi)(mi)封流體還要有很好的(de)(de)浸潤性。

　　五、結構簡單

　　密封環結(jie)構簡單對(dui)稱，優先考慮用整(zheng)體型結(jie)構，也可采(cai)用組合式密封環，盡量避免用密封端面噴涂式結(jie)構。

　　六、有足(zu)夠(gou)的強度(du)和剛度(du)

　　羅平機械密封件(jian)在工(gong)(gong)作條件(jian)下(xia)不損(sun)壞，變形應盡量的(de)(de)小，工(gong)(gong)作條件(jian)波(bo)動時仍能(neng)保持密封(feng)性。尤其是(shi)密封(feng)端面要有足(zu)夠的(de)(de)強度以及一(yi)定的(de)(de)耐(nai)腐蝕能(neng)力，保證產(chan)品的(de)(de)使用壽命。