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蕉嶺熱水泵集式密封的主要特性有哪些

發布時間:2021-12-17 11:55:16 人氣:98828 來源:

  熱水(shui)泵集式密(mi)封(feng)(feng)的(de)(de)大(da)多數主要特性是(shi)其(qi)控制密(mi)封(feng)(feng)功能(neng)(neng)、摩(mo)(mo)擦力(li)(li)、磨損和(he)(he)壽(shou)命的(de)(de)自動界(jie)面(mian)潤(run)滑(hua)機理。一切取決于穿過(guo)界(jie)面(mian)并建立潤(run)滑(hua)膜的(de)(de)液(ye)體(ti)以便密(mi)封(feng)(feng)在實際無接觸,通(tong)常是(shi)混合磨擦,介于干摩(mo)(mo)擦和(he)(he)完整液(ye)膜之間的(de)(de)潤(run)滑(hua)摩(mo)(mo)擦狀態下運行。在腔體(ti)壓(ya)(ya)力(li)(li)作用(yong)下介質(zhi)穿過(guo)密(mi)封(feng)(feng)摩(mo)(mo)擦副(fu)端(duan)(duan)面(mian),表面(mian)張力(li)(li)和(he)(he)離心力(li)(li)在此時影響不大(da),流(liu)體(ti)壓(ya)(ya)力(li)(li)持續下降直(zhi)到它(ta)達到外部(bu)背壓(ya)(ya),此壓(ya)(ya)力(li)(li)作用(yong)類似于流(liu)體(ti)靜(jing)壓(ya)(ya)時軸(zhou)承的(de)(de)承載功能(neng)(neng)。這取決于介質(zhi)粘度(du)、轉速和(he)(he)端(duan)(duan)面(mian)間隙變化。


  熱水泵(beng)集式密(mi)(mi)(mi)(mi)封(feng)(feng)要(yao)起(qi)到(dao)靜(jing)環(huan)(huan)和動(dong)(dong)(dong)(dong)環(huan)(huan)的(de)(de)密(mi)(mi)(mi)(mi)封(feng)(feng)作用(yong),同時(shi)也起(qi)到(dao)浮動(dong)(dong)(dong)(dong)緩沖作用(yong),要(yao)求(qiu)(qiu)靜(jing)環(huan)(huan)的(de)(de)輔(fu)助(zhu)密(mi)(mi)(mi)(mi)封(feng)(feng)元件能保證(zheng)靜(jing)環(huan)(huan)與(yu)壓蓋之間(jian)的(de)(de)密(mi)(mi)(mi)(mi)封(feng)(feng)性(xing)(xing)(xing)和靜(jing)環(huan)(huan)有(you)一定的(de)(de)浮動(dong)(dong)(dong)(dong)性(xing)(xing)(xing),動(dong)(dong)(dong)(dong)環(huan)(huan)的(de)(de)輔(fu)助(zhu)密(mi)(mi)(mi)(mi)封(feng)(feng)元件能保證(zheng)動(dong)(dong)(dong)(dong)環(huan)(huan)與(yu)軸(zhou)與(yu)軸(zhou)套之間(jian)的(de)(de)密(mi)(mi)(mi)(mi)封(feng)(feng)性(xing)(xing)(xing)和動(dong)(dong)(dong)(dong)環(huan)(huan)的(de)(de)浮動(dong)(dong)(dong)(dong)性(xing)(xing)(xing),材(cai)料要(yao)求(qiu)(qiu)耐(nai)熱或耐(nai)寒并能與(yu)介質相容。起(qi)到(dao)將軸(zhou)的(de)(de)轉(zhuan)矩傳(chuan)給動(dong)(dong)(dong)(dong)環(huan)(huan)的(de)(de)作用(yong),中間(jian)傳(chuan)動(dong)(dong)(dong)(dong)的(de)(de)傳(chuan)動(dong)(dong)(dong)(dong)銷(xiao)、壓環(huan)(huan)—傳(chuan)動(dong)(dong)(dong)(dong)環(huan)(huan)、傳(chuan)動(dong)(dong)(dong)(dong)銷(xiao)—彈簧座均起(qi)傳(chuan)動(dong)(dong)(dong)(dong)作用(yong),材(cai)料要(yao)求(qiu)(qiu)耐(nai)磨和耐(nai)腐蝕。

49.JPG

  緊(jin)固(gu)件(jian)要(yao)起到靜、動(dong)環(huan)的(de)(de)定位(wei)、緊(jin)固(gu)和盛裝的(de)(de)作用,要(yao)求定位(wei)正確(que),保(bao)證(zheng)摩擦副密封(feng)面處(chu)于正確(que)的(de)(de)位(wei)置并保(bao)持良好貼合的(de)(de)彈(dan)簧比壓。同(tong)時(shi)要(yao)求拆裝方便、容(rong)易就位(wei)、能重(zhong)復利用。與輔助(zhu)密封(feng)配合處(chu),注意(yi)(yi)安裝密封(feng)環(huan)的(de)(de)導向側角(jiao)和壓彈(dan)量。特別應(ying)注意(yi)(yi)動(dong)環(huan)輔助(zhu)密封(feng)件(jian)與軸套配合處(chu)要(yao)求耐(nai)腐蝕和耐(nai)磨損,必要(yao)時(shi)采用硬(ying)面復層(ceng)。


  熱水(shui)(shui)(shui)泵集式密(mi)封(feng)一般配(pei)上(shang)平衡循(xun)(xun)環(huan)系(xi)(xi)統(tong),可(ke)使用(yong)在易燃、易爆、有毒及腐(fu)蝕、高真空(kong)等(deng)對密(mi)封(feng)要求更為(wei)嚴格的(de)(de)(de)場合。密(mi)封(feng)結(jie)構為(wei)外沖洗結(jie)構,沖洗液可(ke)以(yi)為(wei)清潔的(de)(de)(de)水(shui)(shui)(shui)也可(ke)為(wei)工業回用(yong)水(shui)(shui)(shui),密(mi)封(feng)腔壓(ya)力高于沖洗液的(de)(de)(de)壓(ya)力,沖洗液在輔助套的(de)(de)(de)上(shang)端輸(shu)入,在輔助套的(de)(de)(de)下端輸(shu)出,循(xun)(xun)環(huan)使用(yong),密(mi)封(feng)起(qi)到冷卻沖洗的(de)(de)(de)作用(yong),其輔助裝置有調溫器、平衡罐、強制(zhi)循(xun)(xun)環(huan)平衡系(xi)(xi)統(tong)等(deng)。