2020年6月29日工業用燃氣表電機閥故(gu)障(zhang)處(chu)理方(fang)法氣(qi)(qi)動(dong)球閥故(gu)障(zhang)處(chu)理方(fang)法氣(qi)(qi)動(dong)球閥它以(yi)壓(ya)縮(suo)空(kong)氣(qi)(qi)為(wei)動(dong)力，球桿帶動(dong)球體回轉90度(du)即可(ke)(ke)(ke)實(shi)現(xian)全(quan)開——全(quan)閉(bi)的(de)動(dong)作。閥座(zuo)形式：T，F，C型。其配套(tao)使用(yong)的(de)附件(jian)有空(kong)氣(qi)(qi)過(guo)濾(lv)減(jian)壓(ya)閥，限位(wei)開關(guan)，電(dian)磁閥。其中空(kong)氣(qi)(qi)過(guo)濾(lv)減(jian)壓(ya)閥的(de)主要(yao)作用(yong)是(shi)：穩定壓(ya)力，過(guo)濾(lv)空(kong)氣(qi)(qi)中的(de)雜(za)質(zhi)與(yu)水汽(qi)。該(gai)閥使用(yong)一(yi)定時(shi)間經常(chang)出現(xian)的(de)故(gu)障(zhang)是(shi)漏(lou)(lou)氣(qi)(qi)。下面簡單介紹一(yi)下該(gai)閥的(de)常(chang)見故(gu)障(zhang)及相應的(de)維修(xiu)方(fang)法。對(dui)于(yu)氣(qi)(qi)動(dong)球閥的(de)漏(lou)(lou)氣(qi)(qi)方(fang)式，常(chang)見的(de)有以(yi)下幾種：汽(qi)缸上(shang)(shang)的(de)電(dian)磁閥漏(lou)(lou)氣(qi)(qi)，可(ke)(ke)(ke)能(neng)是(shi)由(you)(you)于(yu)減(jian)壓(ya)閥中的(de)氣(qi)(qi)壓(ya)過(guo)高。汽(qi)缸的(de)排氣(qi)(qi)孔漏(lou)(lou)氣(qi)(qi)，這是(shi)因(yin)為(wei)汽(qi)缸內部的(de)兩個活動(dong)部件(jian)與(yu)缸體的(de)密封(feng)處(chu)的(de)密封(feng)圈出現(xian)老化現(xian)象。汽(qi)缸的(de)上(shang)(shang)下部漏(lou)(lou)氣(qi)(qi)，這是(shi)由(you)(you)于(yu)執(zhi)行(xing)機構(gou)(gou)與(yu)氣(qi)(qi)缸的(de)密封(feng)處(chu)的(de)密封(feng)圈由(you)(you)于(yu)其執(zhi)行(xing)機構(gou)(gou)的(de)頻繁活動(dong)而(er)沒有達到(dao)密封(feng)的(de)效果(guo)。除上(shang)(shang)面的(de)3種情況以(yi)外(wai)，還有另外(wai)一(yi)種情況也可(ke)(ke)(ke)能(neng)使汽(qi)缸漏(lou)(lou)氣(qi)(qi)，即汽(qi)缸中的(de)彈簧損壞，由(you)(you)于(yu)力到(dao)不(bu)到(dao)位(wei)造成(cheng)的(de)，這也可(ke)(ke)(ke)能(neng)造成(cheng)關(guan)不(bu)到(dao)位(wei)。

    對(dui)應解決辦(ban)法：更換(huan)(huan)執(zhi)行(xing)機(ji)構的(de)密封(feng)圈。更換(huan)(huan)汽缸處的(de)密封(feng)圈。將減壓閥的(de)氣壓調(diao)節(jie)為3-5公斤，或者是(shi)將電(dian)磁閥下部(bu)處拆開(kai)(kai)通氣動作(zuo)幾次，有(you)時也有(you)可(ke)能(neng)更換(huan)(huan)電(dian)磁閥。指示(shi)燈(deng)(deng)(deng)故(gu)障(zhang)(zhang)(zhang)(zhang)，故(gu)障(zhang)(zhang)(zhang)(zhang)現(xian)象：給(gei)電(dian)動執(zhi)行(xing)機(ji)通電(dian)后(hou)發現(xian)電(dian)源指示(shi)燈(deng)(deng)(deng)不(bu)亮，伺放(fang)板無反饋(kui)，給(gei)信(xin)號(hao)(hao)不(bu)動作(zuo)。故(gu)障(zhang)(zhang)(zhang)(zhang)判斷和檢(jian)(jian)修(xiu)過程：因電(dian)源指示(shi)燈(deng)(deng)(deng)不(bu)亮，首先檢(jian)(jian)查保險管是(shi)否(fou)開(kai)(kai)路(lu)(lu)，經檢(jian)(jian)查保險管完好，綜合故(gu)障(zhang)(zhang)(zhang)(zhang)現(xian)象，可(ke)以推(tui)斷故(gu)障(zhang)(zhang)(zhang)(zhang)有(you)可(ke)能(neng)發生在伺放(fang)板的(de)電(dian)源部(bu)分,接著檢(jian)(jian)查電(dian)源指示(shi)燈(deng)(deng)(deng)，用萬(wan)用表(biao)檢(jian)(jian)測(ce)發現(xian)指示(shi)燈(deng)(deng)(deng)開(kai)(kai)路(lu)(lu)，更換(huan)(huan)指示(shi)燈(deng)(deng)(deng)故(gu)障(zhang)(zhang)(zhang)(zhang)排除。結論(lun)：電(dian)源指示(shi)燈(deng)(deng)(deng)開(kai)(kai)路(lu)(lu)會造成整個伺放(fang)板不(bu)工(gong)作(zuo)。故(gu)障(zhang)(zhang)(zhang)(zhang)現(xian)象：電(dian)動執(zhi)行(xing)器的(de)執(zhi)行(xing)機(ji)構通電(dian)后(hou)，給(gei)信(xin)號(hao)(hao)開(kai)(kai)可(ke)以，關不(bu)動作(zuo)。故(gu)障(zhang)(zhang)(zhang)(zhang)判斷和檢(jian)(jian)修(xiu)過程：先仔細檢(jian)(jian)查反饋(kui)線(xian)路(lu)(lu)，確認反饋(kui)信(xin)號(hao)(hao)無故(gu)障(zhang)(zhang)(zhang)(zhang)，給(gei)開(kai)(kai)信(xin)號(hao)(hao)時開(kai)(kai)指示(shi)燈(deng)(deng)(deng)亮，說明(ming)開(kai)(kai)正(zheng)常，給(gei)關信(xin)號(hao)(hao)時關指示(shi)燈(deng)(deng)(deng)不(bu)亮，說明(ming)關可(ke)控硅部(bu)分有(you)問題，首先檢(jian)(jian)查關指示(shi)燈(deng)(deng)(deng)，用萬(wan)用表(biao)檢(jian)(jian)測(ce)發現(xian)關指示(shi)燈(deng)(deng)(deng)開(kai)(kai)路(lu)(lu)，將其(qi)更換(huan)(huan)后(hou)故(gu)障(zhang)(zhang)(zhang)(zhang)排除。結論(lun)：關和開(kai)(kai)指示(shi)燈(deng)(deng)(deng)不(bu)亮(開(kai)(kai)路(lu)(lu))時可(ke)控硅不(bu)動作(zuo)。

    電(dian)(dian)阻(zu)電(dian)(dian)容，故障現(xian)(xian)象：執(zhi)(zhi)行(xing)機(ji)(ji)(ji)(ji)構(gou)(gou)通電(dian)(dian)后(hou)(hou)，給定一個(ge)信號，執(zhi)(zhi)行(xing)機(ji)(ji)(ji)(ji)構(gou)(gou)會(hui)全開到(dao)(dao)底，然后(hou)(hou)回(hui)到(dao)(dao)指定位置。故障判(pan)斷和檢修過程：根據(ju)以(yi)上(shang)(shang)故障現(xian)(xian)象，首先要(yao)判(pan)斷是伺放(fang)板和執(zhi)(zhi)行(xing)機(ji)(ji)(ji)(ji)構(gou)(gou)那一個(ge)有(you)問題(ti)。將伺放(fang)板從(cong)執(zhi)(zhi)行(xing)機(ji)(ji)(ji)(ji)構(gou)(gou)上(shang)(shang)拆下，直(zhi)接(jie)(jie)將電(dian)(dian)源線(xian)接(jie)(jie)到(dao)(dao)2和4端子上(shang)(shang)，執(zhi)(zhi)行(xing)機(ji)(ji)(ji)(ji)構(gou)(gou)關方向(xiang)(xiang)動作，將電(dian)(dian)源線(xian)接(jie)(jie)到(dao)(dao)2和3端子上(shang)(shang)，執(zhi)(zhi)行(xing)機(ji)(ji)(ji)(ji)構(gou)(gou)開方向(xiang)(xiang)動作，如(ru)果執(zhi)(zhi)行(xing)機(ji)(ji)(ji)(ji)構(gou)(gou)動作不正(zheng)(zheng)常，說明故障在(zai)執(zhi)(zhi)行(xing)器上(shang)(shang)。用萬用表測電(dian)(dian)機(ji)(ji)(ji)(ji)繞組(zu)正(zheng)(zheng)常，再測電(dian)(dian)容兩邊的電(dian)(dian)阻(zu)發(fa)現(xian)(xian)有(you)一個(ge)開路，將其更換后(hou)(hou)故障排除。結(jie)論：遇到(dao)(dao)以(yi)上(shang)(shang)故障現(xian)(xian)象時，首先要(yao)判(pan)斷故障發(fa)生在(zai)那一個(ge)部分上(shang)(shang)，最后(hou)(hou)確(que)定根源。

    故(gu)障(zhang)(zhang)(zhang)現象：執(zhi)行(xing)機(ji)構通(tong)電后給(gei)關(guan)信號執(zhi)行(xing)機(ji)構先(xian)全(quan)開(kai)后再全(quan)關(guan)。故(gu)障(zhang)(zhang)(zhang)判(pan)斷和檢修(xiu)過程(cheng)：先(xian)拆除(chu)伺(si)(si)放板(ban)，直接(jie)給(gei)執(zhi)行(xing)機(ji)構通(tong)電發現仍然(ran)存在原故(gu)障(zhang)(zhang)(zhang)，檢查電阻(zu)(zu)(zu)，電阻(zu)(zu)(zu)阻(zu)(zu)(zu)值正常，說明(ming)電阻(zu)(zu)(zu)沒(mei)問題，檢查電機(ji)繞組，發現阻(zu)(zu)(zu)值正常，電機(ji)沒(mei)問題。由(you)此故(gu)障(zhang)(zhang)(zhang)推斷有可(ke)能(neng)電容(rong)(rong)壞，重新更換(huan)電容(rong)(rong)，故(gu)障(zhang)(zhang)(zhang)排除(chu)。結論：出現該(gai)問題時首先(xian)懷疑電阻(zu)(zu)(zu)和電容(rong)(rong)。執(zhi)行(xing)機(ji)構的動作方向不受伺(si)(si)放板(ban)的控制。故(gu)障(zhang)(zhang)(zhang)判(pan)斷和檢修(xiu)過程(cheng)：

    首先讓用(yong)(yong)戶用(yong)(yong)萬用(yong)(yong)表檢(jian)測(ce)(ce)兩個限(xian)流(liu)(liu)(liu)電(dian)(dian)(dian)阻和移(yi)相(xiang)電(dian)(dian)(dian)容(rong)及電(dian)(dian)(dian)機(ji)(ji)的(de)(de)(de)繞組(zu)(zu)阻值(zhi)，用(yong)(yong)戶的(de)(de)(de)檢(jian)查結果(guo)(guo)和我(wo)(wo)們(men)提(ti)供的(de)(de)(de)最(zui)終數據一(yi)致(zhi)。除(chu)了這三(san)個因(yin)素(su)以(yi)外(wai)再(zai)沒(mei)有(you)(you)(you)(you)其它(ta)的(de)(de)(de)可(ke)能(neng)性，用(yong)(yong)戶只想我(wo)(wo)們(men)派人(ren)過(guo)去現場(chang)，技術人(ren)員剛好(hao)在當(dang)地順便去了現場(chang)，發(fa)現其中一(yi)個限(xian)流(liu)(liu)(liu)電(dian)(dian)(dian)阻開路，讓公司(si)給寄一(yi)限(xian)流(liu)(liu)(liu)電(dian)(dian)(dian)阻過(guo)去，此案例(li)說(shuo)明(ming)有(you)(you)(you)(you)此用(yong)(yong)戶根本沒(mei)有(you)(you)(you)(you)配(pei)合我(wo)(wo)們(men)的(de)(de)(de)工作(zuo)，有(you)(you)(you)(you)些反(fan)映的(de)(de)(de)情況與(yu)實際(ji)有(you)(you)(you)(you)點差(cha)別。我(wo)(wo)認為影(ying)響執(zhi)(zhi)行機(ji)(ji)構轉(zhuan)向的(de)(de)(de)三(san)個因(yin)素(su)就是(shi)①電(dian)(dian)(dian)機(ji)(ji)本身的(de)(de)(de)繞組(zu)(zu)②限(xian)流(liu)(liu)(liu)電(dian)(dian)(dian)阻③移(yi)相(xiang)電(dian)(dian)(dian)容(rong),以(yi)后發(fa)生(sheng)這種情況都有(you)(you)(you)(you)要從這三(san)方面考慮(lv)。無論現場(chang)給什(shen)么(me)信(xin)號電(dian)(dian)(dian)機(ji)(ji)都不(bu)動(dong)作(zuo)，故障判(pan)斷和檢(jian)修過(guo)程：直接在電(dian)(dian)(dian)機(ji)(ji)繞組(zu)(zu)間(jian)通電(dian)(dian)(dian)，電(dian)(dian)(dian)機(ji)(ji)也不(bu)傳，抱閘拆(chai)下(xia)通電(dian)(dian)(dian)電(dian)(dian)(dian)機(ji)(ji)還是(shi)不(bu)轉(zhuan)，檢(jian)測(ce)(ce)電(dian)(dian)(dian)機(ji)(ji)繞組(zu)(zu)阻值(zhi)均正(zheng)常，手(shou)輪搖(yao)執(zhi)(zhi)行機(ji)(ji)構動(dong)作(zuo)正(zheng)常。檢(jian)測(ce)(ce)的(de)(de)(de)結果(guo)(guo)都正(zheng)常就是(shi)通電(dian)(dian)(dian)時電(dian)(dian)(dian)機(ji)(ji)不(bu)轉(zhuan)，此時懷疑電(dian)(dian)(dian)機(ji)(ji)的(de)(de)(de)轉(zhuan)子(zi)，把電(dian)(dian)(dian)機(ji)(ji)拆(chai)開，發(fa)現轉(zhuan)子(zi)用(yong)(yong)手(shou)都擰不(bu)動(dong)，原(yuan)來轉(zhuan)子(zi)和電(dian)(dian)(dian)機(ji)(ji)端蓋(gai)之間(jian)已有(you)(you)(you)(you)一(yi)層(ceng)堅固的(de)(de)(de)灰(hui)，把這層(ceng)灰(hui)清除(chu)之后，加上一(yi)點潤滑油，用(yong)(yong)手(shou)就可(ke)以(yi)擰動(dong)了。重(zhong)新把電(dian)(dian)(dian)機(ji)(ji)裝(zhuang)好(hao)并(bing)與(yu)執(zhi)(zhi)行機(ji)(ji)構配(pei)合裝(zhuang)上，通電(dian)(dian)(dian)正(zheng)常，重(zhong)新調試。