ASCO電磁閥常見故障資料集體分為哪些
ASCO電磁(ci)閥(fa)在分子篩控制系統中的(de)關鍵作(zuo)用和誤動(dong)作(zuo)后(hou)的(de)嚴重性。日常維護工作(zuo)中,電磁(ci)閥(fa)的(de)故障(zhang)將直接(jie)影響(xiang)到切換(huan)閥(fa)和調節閥(fa)的(de)動(dong)作(zuo),主要常見的(de)故障(zhang)就是(shi)電磁(ci)閥(fa)不(bu)動(dong)作(zuo),應從以(yi)下幾方面(mian)排(pai)查:
1.ASCO電(dian)磁(ci)閥不得電(dian),電(dian)磁(ci)閥接線(xian)頭松動或(huo)線(xian)頭脫落,可(ke)緊(jin)固線(xian)頭。
2.如(ru)接線(xian)(xian)(xian)(xian)(xian)穩固,可拆下接線(xian)(xian)(xian)(xian)(xian)端測量有無24VDC。如(ru)果(guo)在電(dian)磁(ci)閥接線(xian)(xian)(xian)(xian)(xian)端測量有24V,此時(shi)(shi)需驗證(zheng)電(dian)磁(ci)閥線(xian)(xian)(xian)(xian)(xian)圈是(shi)否燒壞(huai),如(ru)果(guo)開路(lu)。此外(wai),彈簧過硬,反作用力(li)(li)過大,線(xian)(xian)(xian)(xian)(xian)圈匝數太少,吸力(li)(li)不夠(gou)也可使(shi)(shi)得線(xian)(xian)(xian)(xian)(xian)圈燒毀(hui)。緊急(ji)處理時(shi)(shi),可將線(xian)(xian)(xian)(xian)(xian)圈上的(de)手動(dong)(dong)按鈕由正常工(gong)作時(shi)(shi)的(de)“0" 位打到“1"位,使(shi)(shi)得閥打開。假設M671線(xian)(xian)(xian)(xian)(xian)圈損壞(huai),此時(shi)(shi)需手動(dong)(dong)切換(huan)M671的(de)出氣路(lu),打開V671,使(shi)(shi)再生氣行成通路(lu)由V671→V676→放空,在工(gong)藝允許(xu)時(shi)(shi)再更換(huan)M671的(de)線(xian)(xian)(xian)(xian)(xian)圈。
3.ASCO電磁(ci)(ci)閥(fa)(fa)(fa)(fa)卡(ka)住。如(ru)果M671帶電,而電磁(ci)(ci)閥(fa)(fa)(fa)(fa)無法切換(huan)工作(zuo)。確認電磁(ci)(ci)閥(fa)(fa)(fa)(fa)的氣(qi)源(yuan)壓(ya)力是(shi)否達到標準值。如(ru)果壓(ya)力足(zu)夠,則可能是(shi)電磁(ci)(ci)閥(fa)(fa)(fa)(fa)氣(qi)路(lu)堵塞或卡(ka)住。把(ba)備(bei)用氣(qi)路(lu)元件換(huan)上,正常投用使電磁(ci)(ci)閥(fa)(fa)(fa)(fa)工作(zuo),自動(dong)打開V671。然后將堵塞的氣(qi)路(lu)元件取出閥(fa)(fa)(fa)(fa)芯及(ji)閥(fa)(fa)(fa)(fa)芯套用CCI4清洗(xi),再抹上潤滑脂。使閥(fa)(fa)(fa)(fa)芯在閥(fa)(fa)(fa)(fa)體內動(dong)作(zuo)靈活。拆卸時(shi)應注(zhu)意各個部件的裝配順序(xu)避(bi)免(mian)出錯,處理后做(zuo)為備(bei)件使用。
4.還有種情況就是(shi)(shi)漏(lou)(lou)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)。從(cong)(cong)漏(lou)(lou)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)現象中可以(yi)(yi)判斷故(gu)障(zhang)點的(de)(de)(de)位(wei)置(zhi)。假設M671帶電,①從(cong)(cong)EA到EB都(dou)有氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)體露(lu)出(chu),則(ze)是(shi)(shi)電磁閥動(dong)作不(bu)到位(wei)。氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)源有部分(fen)從(cong)(cong)EA和EB內漏(lou)(lou)出(chu),氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)源壓力不(bu)足以(yi)(yi)推動(dong)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)缸(gang)使V671動(dong)作,此時應堵(du)住EA孔使進入氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)缸(gang)的(de)(de)(de)壓力能夠(gou)推動(dong)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)缸(gang)動(dong)作。當動(dong)作到位(wei)后,EA和EB則(ze)無氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)體泄露(lu)。根本解決(jue)的(de)(de)(de)方法是(shi)(shi)拆(chai)下電磁閥清(qing)洗氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)路(lu)使電磁閥靈活。②如果從(cong)(cong)EB孔漏(lou)(lou)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi),則(ze)是(shi)(shi)V 6 7 1 閥氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)缸(gang)串(chuan)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi),閥門氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)缸(gang)兩側差壓不(bu)足以(yi)(yi)推動(dong)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)缸(gang)動(dong)作。造(zao)(zao)成(cheng)此現象的(de)(de)(de)原因是(shi)(shi)密(mi)封膠圈損壞或滑(hua)閥磨損而造(zao)(zao)成(cheng)空腔串(chuan)氣(qi)(qi)(qi)(qi)(qi)(qi)(qi)。此時應手動(dong)打開V671,再(zai)處理閥門汽缸(gang)。
在(zai)處(chu)(chu)理(li)切換(huan)(huan)系統(tong)的(de)電(dian)磁閥(fa)故障時(shi),總得原則是(shi)選擇適當(dang)的(de)時(shi)機等該電(dian)磁閥(fa)處(chu)(chu)于失(shi)電(dian)狀態下進行處(chu)(chu)理(li)。若在(zai)個切換(huan)(huan)間隙內處(chu)(chu)理(li)不完,可將切換(huan)(huan)系統(tong)暫停,從容處(chu)(chu)理(li)。
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