書面報價單;VICKERS威格士的電磁閥

產品型號

DG4V-5-8CJ-VM-U-A6-20

DG4V-3-0B-M-U-KK6-60，

DG4V-3S-0C-VM-U-H5-60

DSG-01-2B2-A220-N1-50-50HZ，

DG4V-3-2N-VM-U-H60

DG4V-5-2N-M-U-C6-20，

DG4V-3-0BL-M-U-NN6-60

DG4V-3S-2B200-M-U-SH5-60

    DG4V-3S-2N-M-U-B5-60

    DG4V-3S-2N-VM-U-H5-60

    DG4V-3S-6C-M-U-B5-60

    DG4V-3S-6C-M-U-H5-60

實物原圖

威格士VICKERS電磁閥的使用形式

其(qi)中滑閥式結構(gou)工作壓(ya)力(li)(li)低，控(kong)制壓(ya)力(li)(li)精度不(bu)高；三級同(tong)(tong)(tong)心(xin)(xin)(xin)結構(gou)雖(sui)成(cheng)熟，應用(yong)較(jiao)廣，但與二(er)級同(tong)(tong)(tong)心(xin)(xin)(xin)式比(bi)較(jiao)，不(bu)及二(er)級同(tong)(tong)(tong)心(xin)(xin)(xin)式動作靈敏，規格相同(tong)(tong)(tong)，行程相同(tong)(tong)(tong)時(shi)，二(er)級同(tong)(tong)(tong)心(xin)(xin)(xin)結構(gou)的通油能力(li)(li)遠大于三級同(tong)(tong)(tong)心(xin)(xin)(xin)結構(gou)；二(er)級同(tong)(tong)(tong)心(xin)(xin)(xin)式控(kong)制壓(ya)力(li)(li)穩(wen)定，加工工藝性，二(er)級同(tong)(tong)(tong)心(xin)(xin)(xin)式應用(yong)前景廣闊，這里以二(er)級同(tong)(tong)(tong)心(xin)(xin)(xin)結構(gou)，討論其(qi)結構(gou)尺寸設計方法．

美(mei)國VICKERS威格士的電(dian)磁閥(fa)工作原理

當各(ge)路(lu)(lu)換(huan)向(xiang)(xiang)閥(fa)處(chu)于中(zhong)立位置時，卸荷(he)閥(fa)的控(kong)制(zhi)油(you)道(dao)(dao)(見圖(tu)(tu)1b和圖(tu)(tu)2)貫穿各(ge)路(lu)(lu)換(huan)向(xiang)(xiang)閥(fa)并(bing)與油(you)箱(xiang)連通．卸荷(he)時，大(da)部分(fen)油(you)液(ye)卸荷(he)，通道(dao)(dao)短，壓(ya)(ya)力(li)損失低(di)．任一路(lu)(lu)閥(fa)換(huan)向(xiang)(xiang)工(gong)(gong)作(zuo)，便切斷(duan)控(kong)制(zhi)油(you)道(dao)(dao)，油(you)源來(lai)油(you)就(jiu)從換(huan)向(xiang)(xiang)閥(fa)進入執(zhi)行(xing)元件工(gong)(gong)作(zuo)，其(qi)工(gong)(gong)作(zuo)壓(ya)(ya)力(li)大(da)小由導(dao)閥(fa)控(kong)制(zhi)．此時系統(tong)壓(ya)(ya)力(li)為(wei)導(dao)閥(fa)調整壓(ya)(ya)力(li)．該種卸荷(he)方式，即(ji)使換(huan)向(xiang)(xiang)閥(fa)路(lu)(lu)數增(zeng)加(jia)，只是控(kong)制(zhi)油(you)道(dao)(dao)增(zeng)加(jia)，卸荷(he)壓(ya)(ya)力(li)增(zeng)加(jia)不(bu)大(da)，始終保持較低(di)卸荷(he)壓(ya)(ya)力(li)，此種卸荷(he)方式多用(yong)于手動換(huan)向(xiang)(xiang)閥(fa)，卸荷(he)。

VICKERS電磁閥(又是(shi)安全閥)的(de)主閥按配合形式(shi)(shi)不(bu)同(tong)(tong)(tong)(tong)可(ke)分為三(san)(san)級(ji)(ji)(ji)(ji)(ji)同(tong)(tong)(tong)(tong)心(xin)(xin)、二(er)級(ji)(ji)(ji)(ji)(ji)同(tong)(tong)(tong)(tong)心(xin)(xin)和滑閥式(shi)(shi)三(san)(san)類．其中(zhong)滑閥式(shi)(shi)結(jie)構(gou)(gou)工(gong)(gong)作壓(ya)力(li)低，控(kong)(kong)制(zhi)壓(ya)力(li)精(jing)度不(bu)高；三(san)(san)級(ji)(ji)(ji)(ji)(ji)同(tong)(tong)(tong)(tong)心(xin)(xin)結(jie)構(gou)(gou)雖成熟，應用(yong)較(jiao)廣，但與二(er)級(ji)(ji)(ji)(ji)(ji)同(tong)(tong)(tong)(tong)心(xin)(xin)式(shi)(shi)比較(jiao)，不(bu)及二(er)級(ji)(ji)(ji)(ji)(ji)同(tong)(tong)(tong)(tong)心(xin)(xin)式(shi)(shi)動作靈敏，規(gui)格相同(tong)(tong)(tong)(tong)，行程相同(tong)(tong)(tong)(tong)時，二(er)級(ji)(ji)(ji)(ji)(ji)同(tong)(tong)(tong)(tong)心(xin)(xin)結(jie)構(gou)(gou)的(de)通油能力(li)遠大于三(san)(san)級(ji)(ji)(ji)(ji)(ji)同(tong)(tong)(tong)(tong)心(xin)(xin)結(jie)構(gou)(gou)；二(er)級(ji)(ji)(ji)(ji)(ji)同(tong)(tong)(tong)(tong)心(xin)(xin)式(shi)(shi)控(kong)(kong)制(zhi)壓(ya)力(li)穩(wen)定，加工(gong)(gong)工(gong)(gong)藝性，二(er)級(ji)(ji)(ji)(ji)(ji)同(tong)(tong)(tong)(tong)心(xin)(xin)式(shi)(shi)應用(yong)前景廣闊，這里(li)以(yi)二(er)級(ji)(ji)(ji)(ji)(ji)同(tong)(tong)(tong)(tong)心(xin)(xin)結(jie)構(gou)(gou)，討論其結(jie)構(gou)(gou)尺寸設計方法．

操(cao)作VICKERS威格士(shi)的(de)電(dian)磁閥(fa)安裝(zhuang)，調試，操(cao)作

1、裝置的(de)(de)安裝符合“現(xian)場(chang)規(gui)程"的(de)(de)相關(guan)規(gui)定。

2、在安(an)裝(zhuang)電磁閥(fa)前(qian)(qian)，管(guan)道清洗干(gan)凈，必(bi)要時閥(fa)前(qian)(qian)須裝(zhuang)100目的過濾器。

3、安裝時須線圈豎直向(xiang)上(shang)，介質流(liu)通方向(xiang)應與閥體上(shang)箭頭(tou)指示方向(xiang)一致。

4、不(bu)能(neng)將電磁閥安裝在管道低凹處，以免因(yin)蒸汽冷(leng)凝(ning)水(shui)、雜質等沉積在閥內而(er)妨礙正(zheng)常工作(zuo)。

5、在(zai)管(guan)道剛性不足的情(qing)況下，建議把(ba)閥前后管(guan)子用支架固(gu)定，以防(fang)電磁(ci)閥工作(zuo)時(shi)引(yin)起振動(dong)。

6、連(lian)續性部門為在電磁(ci)閥(fa)(fa)清洗和檢修(xiu)期間(jian)仍確保正(zheng)常(chang)進行(xing)，建(jian)議電磁(ci)閥(fa)(fa)前、后須裝(zhuang)手(shou)動閥(fa)(fa)和采用旁路閥(fa)(fa)。注意:旁路閥(fa)(fa)平時要常(chang)閉。

7、電(dian)磁(ci)閥安裝完成后(hou)，檢(jian)查管(guan)(guan)路(lu)(lu)(lu)(lu)和(he)電(dian)路(lu)(lu)(lu)(lu)連接(jie)無誤，開通管(guan)(guan)路(lu)(lu)(lu)(lu)介(jie)質和(he)電(dian)路(lu)(lu)(lu)(lu)，試(shi)動作數次，確(que)認正常后(hou)方可投入(ru)正式使用。

書面報價單;VICKERS威格士的電磁閥