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發(fa)布(bu)時間:2021-12-17 11:55:58 人氣:99098 來源:
運城機械密封又叫端面密封,在有關標準中是這樣定義的:由至少一對垂直于旋轉軸線的端面在流體壓力和補償機構彈力的作用以及輔助密封的配合下保持貼合并相對滑動而構成的防止流體泄漏的裝置。帶有平衡罐的自身壓力增壓系統是一種壓力傳遞機構,用于雙端面運城機械密封,以(yi)解決現有(you)的(de)(de)(de)循環(huan)(huan)水(shui)泵的(de)(de)(de)部分揚(yang)程(cheng)不能克服系統(tong)的(de)(de)(de)阻力,在循環(huan)(huan)泵流量不變的(de)(de)(de)情況(kuang)下,一旦循環(huan)(huan)泵的(de)(de)(de)揚(yang)程(cheng)提高(gao),則循環(huan)(huan)泵所配電(dian)機功率(lv)將(jiang)大幅提高(gao),設(she)備運行電(dian)費也(ye)隨之增加的(de)(de)(de)問題。
自身壓(ya)(ya)力增(zeng)(zeng)壓(ya)(ya)系統結構包括(kuo)出(chu)水(shui)(shui)(shui)口(kou)(kou)(kou)、固(gu)(gu)(gu)(gu)(gu)定(ding)(ding)(ding)法蘭(lan)(lan)、泵體、增(zeng)(zeng)壓(ya)(ya)裝(zhuang)置、電機轉子(zi)、吊環、防護罩、水(shui)(shui)(shui)泵、固(gu)(gu)(gu)(gu)(gu)定(ding)(ding)(ding)基(ji)座(zuo)(zuo)(zuo)、底座(zuo)(zuo)(zuo)、加固(gu)(gu)(gu)(gu)(gu)件(jian)(jian)、控制閥、緊(jin)固(gu)(gu)(gu)(gu)(gu)件(jian)(jian),所述出(chu)水(shui)(shui)(shui)口(kou)(kou)(kou)與(yu)(yu)(yu)固(gu)(gu)(gu)(gu)(gu)定(ding)(ding)(ding)法蘭(lan)(lan)相(xiang)(xiang)連(lian)(lian)(lian)接(jie)(jie),泵體與(yu)(yu)(yu)增(zeng)(zeng)壓(ya)(ya)裝(zhuang)置相(xiang)(xiang)連(lian)(lian)(lian)接(jie)(jie),增(zeng)(zeng)壓(ya)(ya)裝(zhuang)置由進(jin)水(shui)(shui)(shui)口(kou)(kou)(kou)、水(shui)(shui)(shui)管(guan)、負壓(ya)(ya)室、平衡固(gu)(gu)(gu)(gu)(gu)定(ding)(ding)(ding)盤(pan)、緊(jin)固(gu)(gu)(gu)(gu)(gu)支架組成,進(jin)水(shui)(shui)(shui)口(kou)(kou)(kou)與(yu)(yu)(yu)水(shui)(shui)(shui)管(guan)相(xiang)(xiang)連(lian)(lian)(lian)接(jie)(jie),水(shui)(shui)(shui)管(guan)與(yu)(yu)(yu)負壓(ya)(ya)室相(xiang)(xiang)連(lian)(lian)(lian)接(jie)(jie),負壓(ya)(ya)室通(tong)過平衡固(gu)(gu)(gu)(gu)(gu)定(ding)(ding)(ding)盤(pan)保持(chi)平衡,緊(jin)固(gu)(gu)(gu)(gu)(gu)支架與(yu)(yu)(yu)泵體固(gu)(gu)(gu)(gu)(gu)定(ding)(ding)(ding)連(lian)(lian)(lian)接(jie)(jie),防護罩與(yu)(yu)(yu)水(shui)(shui)(shui)泵相(xiang)(xiang)連(lian)(lian)(lian)接(jie)(jie),水(shui)(shui)(shui)泵與(yu)(yu)(yu)固(gu)(gu)(gu)(gu)(gu)定(ding)(ding)(ding)基(ji)座(zuo)(zuo)(zuo)相(xiang)(xiang)連(lian)(lian)(lian)接(jie)(jie),固(gu)(gu)(gu)(gu)(gu)定(ding)(ding)(ding)基(ji)座(zuo)(zuo)(zuo)與(yu)(yu)(yu)底座(zuo)(zuo)(zuo)緊(jin)固(gu)(gu)(gu)(gu)(gu)連(lian)(lian)(lian)接(jie)(jie),底座(zuo)(zuo)(zuo)上設有加固(gu)(gu)(gu)(gu)(gu)件(jian)(jian),緊(jin)固(gu)(gu)(gu)(gu)(gu)件(jian)(jian))與(yu)(yu)(yu)底座(zuo)(zuo)(zuo)固(gu)(gu)(gu)(gu)(gu)定(ding)(ding)(ding)連(lian)(lian)(lian)接(jie)(jie)。
由(you)于(yu)活(huo)塞(sai)體上端(duan)的(de)承(cheng)壓面(mian)積(ji)比(bi)活(huo)塞(sai)體下端(duan)的(de)承(cheng)壓面(mian)積(ji)減(jian)少(shao)了一(yi)根活(huo)塞(sai)桿的(de)面(mian)積(ji),因此(ci),密封(feng)(feng)油(you)壓力(li)按(an)兩端(duan)承(cheng)壓面(mian)積(ji)反(fan)比(bi)例(li)地增(zeng)加,從而保證密封(feng)(feng)條件。設(she)計(ji)(ji)活(huo)塞(sai)兩端(duan)承(cheng)壓面(mian)積(ji)之(zhi)比(bi)時,應(ying)根據(ju)所要求的(de)密封(feng)(feng)腔與(yu)釜內的(de)壓力(li)差來計(ji)(ji)算。活(huo)塞(sai)桿上裝有(you)彈(dan)簧(huang),調(diao)節(jie)彈(dan)簧(huang)的(de)壓縮量,使(shi)彈(dan)簧(huang)力(li)正好抵(di)消活(huo)塞(sai)上O形圈(quan)對缸壁的(de)摩擦力(li),以(yi)減(jian)少(shao)壓差計(ji)(ji)算值與(yu)實際(ji)之(zhi)間的(de)誤差。此(ci)外(wai),活(huo)塞(sai)升降還有(you)指示平衡罐(guan)中液(ye)位的(de)作用。當密封(feng)(feng)液(ye)漏泄需要補充(chong)時,可用手動(dong)泵加注(zhu)密封(feng)(feng)液(ye)。在使(shi)用時需注(zhu)意活(huo)塞(sai)應(ying)經常處于(yu)平衡罐(guan)的(de)下部位置,使(shi)活(huo)塞(sai)有(you)向上移動(dong)的(de)余地。