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發布時間:2021-12-10 15:49:48 人氣:135887 來(lai)源(yuan):
洪梅鎮機械密封又叫端面(mian)密封,在(zai)有關標準中是這樣解說的:由至(zhi)少一對垂直(zhi)于旋(xuan)轉軸(zhou)線的端面(mian)在(zai)流(liu)體壓力和補償(chang)機構彈(dan)力的作用以及輔助密封的配合下保(bao)持貼合并相(xiang)對滑動而構成的防止流(liu)體泄漏的裝置。
洪梅鎮機械密封自身壓(ya)(ya)(ya)力增(zeng)壓(ya)(ya)(ya)系統結構包括出水(shui)口、固(gu)(gu)(gu)定(ding)法(fa)蘭(lan)、泵(beng)(beng)體、增(zeng)壓(ya)(ya)(ya)裝置、電(dian)機轉子(zi)、吊環(huan)、防護罩、水(shui)泵(beng)(beng)、固(gu)(gu)(gu)定(ding)基(ji)(ji)座、底(di)座、加固(gu)(gu)(gu)件(jian)、控制閥、緊固(gu)(gu)(gu)件(jian),所述出水(shui)口與(yu)(yu)固(gu)(gu)(gu)定(ding)法(fa)蘭(lan)相(xiang)連(lian)(lian)(lian)接(jie)(jie),泵(beng)(beng)體與(yu)(yu)增(zeng)壓(ya)(ya)(ya)裝置相(xiang)連(lian)(lian)(lian)接(jie)(jie),增(zeng)壓(ya)(ya)(ya)裝置由進(jin)水(shui)口、水(shui)管(guan)、負壓(ya)(ya)(ya)室、平(ping)衡固(gu)(gu)(gu)定(ding)盤、緊固(gu)(gu)(gu)支(zhi)架組成,進(jin)水(shui)口與(yu)(yu)水(shui)管(guan)相(xiang)連(lian)(lian)(lian)接(jie)(jie),水(shui)管(guan)與(yu)(yu)負壓(ya)(ya)(ya)室相(xiang)連(lian)(lian)(lian)接(jie)(jie),負壓(ya)(ya)(ya)室通過平(ping)衡固(gu)(gu)(gu)定(ding)盤保(bao)持平(ping)衡,緊固(gu)(gu)(gu)支(zhi)架與(yu)(yu)泵(beng)(beng)體固(gu)(gu)(gu)定(ding)連(lian)(lian)(lian)接(jie)(jie),防護罩與(yu)(yu)水(shui)泵(beng)(beng)相(xiang)連(lian)(lian)(lian)接(jie)(jie),水(shui)泵(beng)(beng)與(yu)(yu)固(gu)(gu)(gu)定(ding)基(ji)(ji)座相(xiang)連(lian)(lian)(lian)接(jie)(jie),固(gu)(gu)(gu)定(ding)基(ji)(ji)座與(yu)(yu)底(di)座緊固(gu)(gu)(gu)連(lian)(lian)(lian)接(jie)(jie),底(di)座上設有加固(gu)(gu)(gu)件(jian),緊固(gu)(gu)(gu)件(jian)與(yu)(yu)底(di)座固(gu)(gu)(gu)定(ding)連(lian)(lian)(lian)接(jie)(jie)。
動環和靜環的總稱叫做密封環,是構成洪梅鎮機械密封件主要的元件。密封環在很大程度上決定了洪梅鎮機械密封件的使用性能和壽命,所以洪梅鎮機械密封件對密封環(huan)有(you)一些特(te)定(ding)的要求。
一、密封環要容(rong)易(yi)加工(gong)制造
二、安裝和(he)維修要方便(bian),價(jia)格要低廉。
三(san)、密(mi)封環(huan)要(yao)有良好的耐熱沖(chong)擊(ji)能力,因(yin)此材料要(yao)有較高(gao)的導(dao)熱系(xi)數和(he)較小的線(xian)膨(peng)脹系(xi)數,承(cheng)受熱沖(chong)擊(ji)時不至(zhi)于開裂。
四、密(mi)(mi)(mi)封(feng)(feng)環要有良好(hao)的自潤滑性,防止工作中(zhong)發生短(duan)時間的干摩擦,不損傷密(mi)(mi)(mi)封(feng)(feng)端(duan)面。因此,密(mi)(mi)(mi)封(feng)(feng)環材料(liao)與密(mi)(mi)(mi)封(feng)(feng)流體還要有很好(hao)的浸潤性。
五、結構簡單
密(mi)封(feng)(feng)環結構簡單對稱,優先考慮(lv)用整體型結構,也可采用組合式密(mi)封(feng)(feng)環,盡(jin)量避免用密(mi)封(feng)(feng)端面噴(pen)涂式結構。
六(liu)、有足夠的(de)強度和(he)剛度
洪梅鎮機械密封件在工(gong)作條(tiao)件下不損壞(huai),變(bian)形應盡量的(de)小,工(gong)作條(tiao)件波動(dong)時仍能保(bao)持密封(feng)(feng)性。尤其是密封(feng)(feng)端面(mian)要有足夠(gou)的(de)強度以(yi)及一(yi)定的(de)耐腐(fu)蝕能力,保(bao)證產(chan)品的(de)使用壽命。