ASCO電磁閥內漏該如何處理？

    1、ASCO電磁閥閥門制(zhi)造在過程(cheng)中(zhong)對閥門材質、加工(gong)工(gong)藝、裝配工(gong)藝等(deng)控制(zhi)不嚴，致使密封面研磨不合格、對麻點、沙眼等(deng)缺陷的(de)產(chan)品沒有*剔除，造成了電動調節閥內漏。解決辦法：重(zhong)新加工(gong)密封面。

    2、ASCO電磁(ci)閥(fa)控制(zhi)部分影響閥(fa)門的內漏

    電(dian)動調節閥(fa)(fa)的(de)傳(chuan)統(tong)控制(zhi)方(fang)式(shi)是通過閥(fa)(fa)門限位開(kai)關、過力矩開(kai)關等機械的(de)控制(zhi)方(fang)式(shi)，由于(yu)這些控制(zhi)元件受(shou)環境(jing)溫度(du)、壓力、濕度(du)的(de)影響，造成(cheng)閥(fa)(fa)門定位失準，彈簧疲勞、熱膨脹系數不(bu)均勻等客觀(guan)因(yin)素，造成(cheng)電(dian)動調節閥(fa)(fa)的(de)內漏(lou)。解決辦(ban)法(fa)：重(zhong)新調整限位。

    3、ASCO電磁閥調試(shi)問題引起的內漏

    受加工(gong)、裝配工(gong)藝的(de)(de)(de)(de)影響，電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)調(diao)節閥(fa)(fa)(fa)普遍(bian)存在手(shou)(shou)動(dong)(dong)(dong)(dong)(dong)(dong)關(guan)(guan)嚴(yan)后(hou)電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)打(da)不(bu)(bu)(bu)開(kai)的(de)(de)(de)(de)現(xian)(xian)(xian)象(xiang)(xiang)，如(ru)通過上(shang)(shang)下限位(wei)開(kai)關(guan)(guan)的(de)(de)(de)(de)動(dong)(dong)(dong)(dong)(dong)(dong)作(zuo)位(wei)置把電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)調(diao)節閥(fa)(fa)(fa)的(de)(de)(de)(de)行程調(diao)整(zheng)小一(yi)(yi)些(xie)，則(ze)出(chu)現(xian)(xian)(xian)電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)調(diao)節閥(fa)(fa)(fa)關(guan)(guan)不(bu)(bu)(bu)嚴(yan)或(huo)者(zhe)閥(fa)(fa)(fa)門(men)(men)(men)開(kai)不(bu)(bu)(bu)展的(de)(de)(de)(de)不(bu)(bu)(bu)狀態；把電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)調(diao)節閥(fa)(fa)(fa)的(de)(de)(de)(de)行程調(diao)整(zheng)大一(yi)(yi)些(xie)，則(ze)引起過力(li)矩開(kai)關(guan)(guan)保護動(dong)(dong)(dong)(dong)(dong)(dong)作(zuo)；如(ru)果(guo)將(jiang)過力(li)矩開(kai)關(guan)(guan)的(de)(de)(de)(de)動(dong)(dong)(dong)(dong)(dong)(dong)作(zuo)值調(diao)整(zheng)的(de)(de)(de)(de)大一(yi)(yi)些(xie)，則(ze)出(chu)現(xian)(xian)(xian)撞(zhuang)壞減(jian)速(su)傳動(dong)(dong)(dong)(dong)(dong)(dong)機構或(huo)者(zhe)撞(zhuang)壞閥(fa)(fa)(fa)門(men)(men)(men)，甚(shen)至(zhi)將(jiang)電(dian)機燒毀的(de)(de)(de)(de)事故。為(wei)了(le)解(jie)決這(zhe)一(yi)(yi)問題(ti)，通常，電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)調(diao)節閥(fa)(fa)(fa)調(diao)試(shi)時手(shou)(shou)動(dong)(dong)(dong)(dong)(dong)(dong)將(jiang)電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)調(diao)節閥(fa)(fa)(fa)搖(yao)到底(di)，再往開(kai)方向搖(yao)一(yi)(yi)圈，定電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)門(men)(men)(men)的(de)(de)(de)(de)下限位(wei)開(kai)關(guan)(guan)位(wei)置，然后(hou)將(jiang)電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)調(diao)節閥(fa)(fa)(fa)開(kai)到全開(kai)位(wei)置定上(shang)(shang)限開(kai)關(guan)(guan)位(wei)置，這(zhe)樣(yang)電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)調(diao)節閥(fa)(fa)(fa)就不(bu)(bu)(bu)會出(chu)現(xian)(xian)(xian)手(shou)(shou)動(dong)(dong)(dong)(dong)(dong)(dong)關(guan)(guan)嚴(yan)后(hou)電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)打(da)不(bu)(bu)(bu)開(kai)的(de)(de)(de)(de)現(xian)(xian)(xian)象(xiang)(xiang)，才能使(shi)電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)門(men)(men)(men)開(kai)、關(guan)(guan)操(cao)作(zuo)自如(ru)，但無形中就引起了(le)電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)門(men)(men)(men)內漏(lou)。即使(shi)電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)調(diao)節閥(fa)(fa)(fa)調(diao)整(zheng)的(de)(de)(de)(de)比較，由于限位(wei)開(kai)關(guan)(guan)的(de)(de)(de)(de)動(dong)(dong)(dong)(dong)(dong)(dong)作(zuo)位(wei)置是相(xiang)對(dui)(dui)固定的(de)(de)(de)(de)，閥(fa)(fa)(fa)門(men)(men)(men)控(kong)制(zhi)的(de)(de)(de)(de)介質(zhi)在運行中對(dui)(dui)閥(fa)(fa)(fa)門(men)(men)(men)的(de)(de)(de)(de)不(bu)(bu)(bu)斷沖刷、磨損，也(ye)會造成閥(fa)(fa)(fa)門(men)(men)(men)關(guan)(guan)閉不(bu)(bu)(bu)嚴(yan)而引起的(de)(de)(de)(de)內漏(lou)現(xian)(xian)(xian)象(xiang)(xiang)。解(jie)決辦法：重(zhong)新調(diao)整(zheng)限位(wei)。

   ; 4、選型錯誤造成閥門(men)的空化腐蝕引(yin)起電動調節閥的內(nei)漏

    空化與壓差有關(guan)，當(dang)閥(fa)門的(de)實際壓差△P大(da)(da)于產(chan)生空化的(de)臨界壓差△Pc，就產(chan)生空化，空化過(guo)程中(zhong)氣泡破裂時(shi)釋放出巨大(da)(da)的(de)能(neng)量(liang)，對閥(fa)座(zuo)、閥(fa)芯等節(jie)流元件(jian)產(chan)生巨大(da)(da)的(de)破壞(huai)作用(yong)(yong)，一般(ban)的(de)閥(fa)門在空化條件(jian)下(xia)多(duo)運行三個月甚至更短時(shi)間，即(ji)閥(fa)門遭受到嚴重的(de)空化腐蝕，致使閥(fa)座(zuo)泄漏量(liang)高(gao)可達額定(ding)流量(liang)的(de)30%以上，這是(shi)無(wu)法彌補的(de)，因此，不同用(yong)(yong)途的(de)電動(dong)門都有不同的(de)具體技術要(yao)求(qiu)，要(yao)按照系統工(gong)藝流程來合理選擇電動(dong)調(diao)節(jie)閥(fa)至關(guan)重要(yao)。解決辦(ban)法：進行工(gong)藝改進，選用(yong)(yong)多(duo)級降(jiang)壓或套筒調(diao)節(jie)閥(fa)。

    5、介質的沖刷、電動調節(jie)閥老化(hua)引起(qi)的內漏

    ASCO電磁閥(fa)調(diao)(diao)整后經過一(yi)定時間的(de)(de)運行，由于閥(fa)門的(de)(de)氣蝕和(he)介質的(de)(de)沖刷、閥(fa)芯與閥(fa)座產生磨損、內部部件老化等原因，則(ze)會(hui)出現(xian)電動(dong)調(diao)(diao)節(jie)(jie)閥(fa)行程(cheng)偏大、電動(dong)調(diao)(diao)節(jie)(jie)閥(fa)關不嚴的(de)(de)現(xian)象，造(zao)成電動(dong)調(diao)(diao)節(jie)(jie)閥(fa)泄(xie)漏量變大，隨著時間的(de)(de)推移，電動(dong)調(diao)(diao)節(jie)(jie)閥(fa)內漏現(xian)象會(hui)越來(lai)越嚴重。解決辦法：重新調(diao)(diao)整執行器，并定期進(jin)行維護、校正即(ji)可。

    1、電(dian)動(dong)調節閥制造(zao)質量引起的內漏

    ASCO電磁閥在過程中對閥門材(cai)質、加(jia)(jia)工(gong)(gong)工(gong)(gong)藝、裝配(pei)工(gong)(gong)藝等控制不嚴，致使密封面研磨不合格、對麻點、沙眼等缺陷的產品沒有*剔(ti)除，造成了電動調節(jie)閥內漏。解決(jue)辦(ban)法：重(zhong)新加(jia)(jia)工(gong)(gong)密封面。

    2、ASCO電磁閥控(kong)制部(bu)分影響(xiang)閥門的內漏

    ASCO電磁閥的(de)傳(chuan)統控(kong)制方式是通過(guo)閥門(men)限位開關、過(guo)力矩開關等機械的(de)控(kong)制方式，由于這(zhe)些控(kong)制元件受環境(jing)溫(wen)度、壓(ya)力、濕度的(de)影響，造(zao)成閥門(men)定位失(shi)準(zhun)，彈簧疲勞(lao)、熱膨脹系數不均勻等客觀因素，造(zao)成電動調節(jie)閥的(de)內(nei)漏。解(jie)決辦(ban)法(fa)：重新(xin)調整限位。

    3、ASCO電(dian)磁閥調試問題引起的內(nei)漏

    受加工(gong)、裝配工(gong)藝的(de)(de)(de)(de)影響(xiang)，電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)調(diao)(diao)(diao)(diao)(diao)節(jie)(jie)(jie)閥(fa)普遍存(cun)在手(shou)動(dong)(dong)(dong)(dong)關嚴后(hou)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)打(da)不(bu)(bu)開(kai)(kai)(kai)(kai)的(de)(de)(de)(de)現象，如通過上(shang)下限(xian)位開(kai)(kai)(kai)(kai)關的(de)(de)(de)(de)動(dong)(dong)(dong)(dong)作(zuo)(zuo)位置(zhi)(zhi)(zhi)把電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)調(diao)(diao)(diao)(diao)(diao)節(jie)(jie)(jie)閥(fa)的(de)(de)(de)(de)行(xing)程調(diao)(diao)(diao)(diao)(diao)整(zheng)(zheng)小一些(xie)，則(ze)(ze)出現電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)調(diao)(diao)(diao)(diao)(diao)節(jie)(jie)(jie)閥(fa)關不(bu)(bu)嚴或者閥(fa)門(men)(men)開(kai)(kai)(kai)(kai)不(bu)(bu)展的(de)(de)(de)(de)不(bu)(bu)狀態；把電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)調(diao)(diao)(diao)(diao)(diao)節(jie)(jie)(jie)閥(fa)的(de)(de)(de)(de)行(xing)程調(diao)(diao)(diao)(diao)(diao)整(zheng)(zheng)大(da)一些(xie)，則(ze)(ze)引起過力矩(ju)開(kai)(kai)(kai)(kai)關保護動(dong)(dong)(dong)(dong)作(zuo)(zuo)；如果將過力矩(ju)開(kai)(kai)(kai)(kai)關的(de)(de)(de)(de)動(dong)(dong)(dong)(dong)作(zuo)(zuo)值調(diao)(diao)(diao)(diao)(diao)整(zheng)(zheng)的(de)(de)(de)(de)大(da)一些(xie)，則(ze)(ze)出現撞(zhuang)壞減速傳動(dong)(dong)(dong)(dong)機構或者撞(zhuang)壞閥(fa)門(men)(men)，甚至將電(dian)(dian)(dian)(dian)機燒毀(hui)的(de)(de)(de)(de)事故。為了解決這(zhe)一問題，通常，電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)調(diao)(diao)(diao)(diao)(diao)節(jie)(jie)(jie)閥(fa)調(diao)(diao)(diao)(diao)(diao)試時手(shou)動(dong)(dong)(dong)(dong)將電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)調(diao)(diao)(diao)(diao)(diao)節(jie)(jie)(jie)閥(fa)搖到(dao)底，再往開(kai)(kai)(kai)(kai)方向搖一圈(quan)，定電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)門(men)(men)的(de)(de)(de)(de)下限(xian)位開(kai)(kai)(kai)(kai)關位置(zhi)(zhi)(zhi)，然后(hou)將電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)調(diao)(diao)(diao)(diao)(diao)節(jie)(jie)(jie)閥(fa)開(kai)(kai)(kai)(kai)到(dao)全開(kai)(kai)(kai)(kai)位置(zhi)(zhi)(zhi)定上(shang)限(xian)開(kai)(kai)(kai)(kai)關位置(zhi)(zhi)(zhi)，這(zhe)樣電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)調(diao)(diao)(diao)(diao)(diao)節(jie)(jie)(jie)閥(fa)就不(bu)(bu)會出現手(shou)動(dong)(dong)(dong)(dong)關嚴后(hou)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)打(da)不(bu)(bu)開(kai)(kai)(kai)(kai)的(de)(de)(de)(de)現象，才能(neng)使電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)門(men)(men)開(kai)(kai)(kai)(kai)、關操作(zuo)(zuo)自如，但無(wu)形(xing)中就引起了電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)門(men)(men)內漏。即使電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)調(diao)(diao)(diao)(diao)(diao)節(jie)(jie)(jie)閥(fa)調(diao)(diao)(diao)(diao)(diao)整(zheng)(zheng)的(de)(de)(de)(de)比(bi)較，由于限(xian)位開(kai)(kai)(kai)(kai)關的(de)(de)(de)(de)動(dong)(dong)(dong)(dong)作(zuo)(zuo)位置(zhi)(zhi)(zhi)是(shi)相對(dui)固(gu)定的(de)(de)(de)(de)，閥(fa)門(men)(men)控制的(de)(de)(de)(de)介質在運行(xing)中對(dui)閥(fa)門(men)(men)的(de)(de)(de)(de)不(bu)(bu)斷沖刷、磨損，也會造成閥(fa)門(men)(men)關閉不(bu)(bu)嚴而引起的(de)(de)(de)(de)內漏現象。解決辦法：重新調(diao)(diao)(diao)(diao)(diao)整(zheng)(zheng)限(xian)位。

    4、選型錯誤造成閥門的(de)空(kong)化(hua)腐蝕(shi)引起電動調節(jie)閥的(de)內漏(lou)

    空(kong)(kong)(kong)(kong)化(hua)與壓(ya)差(cha)有關，當閥(fa)門的(de)(de)(de)(de)實際壓(ya)差(cha)△P大于(yu)產(chan)生空(kong)(kong)(kong)(kong)化(hua)的(de)(de)(de)(de)臨界壓(ya)差(cha)△Pc，就產(chan)生空(kong)(kong)(kong)(kong)化(hua)，空(kong)(kong)(kong)(kong)化(hua)過程(cheng)中氣泡(pao)破裂時釋放出巨(ju)大的(de)(de)(de)(de)能量，對閥(fa)座、閥(fa)芯等節流元件(jian)產(chan)生巨(ju)大的(de)(de)(de)(de)破壞作用(yong)，一般的(de)(de)(de)(de)閥(fa)門在空(kong)(kong)(kong)(kong)化(hua)條件(jian)下多運行三個月甚(shen)至(zhi)更短時間，即閥(fa)門遭受到(dao)嚴(yan)重(zhong)(zhong)的(de)(de)(de)(de)空(kong)(kong)(kong)(kong)化(hua)腐蝕，致(zhi)使閥(fa)座泄漏量高可達額(e)定(ding)流量的(de)(de)(de)(de)30%以上，這是無法彌補的(de)(de)(de)(de)，因此，不同用(yong)途(tu)的(de)(de)(de)(de)電(dian)動(dong)(dong)門都有不同的(de)(de)(de)(de)具體(ti)技術(shu)要(yao)求，要(yao)按照(zhao)系統(tong)工藝流程(cheng)來合理選擇電(dian)動(dong)(dong)調節閥(fa)至(zhi)關重(zhong)(zhong)要(yao)。解決(jue)辦(ban)法：進行工藝改進，選用(yong)多級降(jiang)壓(ya)或套(tao)筒調節閥(fa)。

    5、介質的沖刷、電(dian)動調(diao)節閥老化引起的內漏

    ASCO電(dian)磁(ci)閥調(diao)整后經過(guo)一定時間的運行，由于閥門的氣(qi)蝕和介(jie)質的沖刷、閥芯與(yu)閥座產生磨損、內(nei)部部件(jian)老(lao)化等原因，則(ze)會(hui)出現電(dian)動(dong)(dong)調(diao)節(jie)閥行程偏(pian)大、電(dian)動(dong)(dong)調(diao)節(jie)閥關不嚴的現象，造(zao)成電(dian)動(dong)(dong)調(diao)節(jie)閥泄漏(lou)量變大，隨著時間的推移，電(dian)動(dong)(dong)調(diao)節(jie)閥內(nei)漏(lou)現象會(hui)越來越嚴重(zhong)。