燃氣緊急切斷閥的工作原理

1、直動式燃氣電磁閥原理

直動式(shi)燃氣電(dian)(dian)(dian)磁(ci)閥(fa)(fa)(fa)是通過(guo)電(dian)(dian)(dian)磁(ci)力(li)把封閉件從閥(fa)(fa)(fa)座上(shang)提(ti)起(qi)或關(guan)(guan)閉的(de)，當電(dian)(dian)(dian)磁(ci)閥(fa)(fa)(fa)線(xian)圈(quan)得電(dian)(dian)(dian)時，電(dian)(dian)(dian)磁(ci)閥(fa)(fa)(fa)打開(kai)，此(ci)(ci)時磁(ci)性(xing)開(kai)關(guan)(guan)輸入源與(yu)(yu)輸出(chu)開(kai)觸(chu)(chu)(chu)點(dian)(dian)接(jie)觸(chu)(chu)(chu)，輸入源與(yu)(yu)輸出(chu)關(guan)(guan)觸(chu)(chu)(chu)點(dian)(dian)斷(duan)開(kai)，線(xian)圈(quan)保(bao)持通電(dian)(dian)(dian)電(dian)(dian)(dian)磁(ci)閥(fa)(fa)(fa)處(chu)于開(kai)啟狀態(tai)。當電(dian)(dian)(dian)磁(ci)閥(fa)(fa)(fa)線(xian)圈(quan)失(shi)電(dian)(dian)(dian)時，電(dian)(dian)(dian)磁(ci)閥(fa)(fa)(fa)迅速關(guan)(guan)閉，此(ci)(ci)時磁(ci)性(xing)開(kai)關(guan)(guan)輸入源與(yu)(yu)輸出(chu)關(guan)(guan)觸(chu)(chu)(chu)點(dian)(dian)接(jie)通，輸入源與(yu)(yu)輸出(chu)關(guan)(guan)觸(chu)(chu)(chu)點(dian)(dian)斷(duan)開(kai)。

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2、先導式燃氣電磁閥原理

先導式燃(ran)氣電(dian)(dian)磁閥(fa)通(tong)電(dian)(dian)時(shi)，上腔室壓(ya)(ya)力(li)(li)(li)敏捷(jie)降落，封閉件(jian)四周形成上低下高的(de)壓(ya)(ya)差，流(liu)體壓(ya)(ya)力(li)(li)(li)推動(dong)(dong)封閉件(jian)向上移動(dong)(dong)，閥(fa)門(men)打開。斷電(dian)(dian)時(shi)，彈簧力(li)(li)(li)把(ba)先導孔(kong)封閉，進口壓(ya)(ya)力(li)(li)(li)通(tong)過旁(pang)通(tong)孔(kong)敏捷(jie)腔室，在(zai)關閥(fa)件(jian)四周形成下低上高的(de)壓(ya)(ya)差，流(liu)體壓(ya)(ya)力(li)(li)(li)推動(dong)(dong)封閉件(jian)向下移動(dong)(dong)，封閉閥(fa)門(men)。

3、散布直動燃氣電磁閥原理

散布(bu)直(zhi)動燃氣電(dian)磁閥采用直(zhi)動和先(xian)(xian)導(dao)式(shi)相聯(lian)合的原理，通電(dian)后，電(dian)磁力(li)(li)直(zhi)接把先(xian)(xian)導(dao)小(xiao)閥和主(zhu)(zhu)閥封(feng)(feng)閉件依(yi)次向上(shang)提(ti)起(qi)，閥門打(da)開。當進口(kou)與出口(kou)達到啟動壓(ya)(ya)差時，通電(dian)后，電(dian)磁力(li)(li)先(xian)(xian)導(dao)小(xiao)閥，主(zhu)(zhu)閥下腔(qiang)壓(ya)(ya)力(li)(li)上(shang)升，上(shang)腔(qiang)壓(ya)(ya)力(li)(li)降落(luo)，從而利(li)用壓(ya)(ya)差把主(zhu)(zhu)閥向上(shang)推開。斷(duan)電(dian)時，先(xian)(xian)導(dao)閥利(li)用彈簧力(li)(li)或(huo)介(jie)質(zhi)壓(ya)(ya)力(li)(li)推動封(feng)(feng)閉件，向下移動，使閥門封(feng)(feng)閉。

安裝燃氣電磁閥有哪些要求

1、閥門(men)安(an)裝單(dan)位應具(ju)備相應資(zi)質，并按相關的燃氣(qi)管(guan)道施工規范安(an)裝。

2、閥門應(ying)安裝(zhuang)在(zai)戶內的總(zong)進氣閥之后(hou)，以便檢(jian)修。

3、應按閥體(ti)標明的氣流(liu)方向安裝，閥體(ti)線圈不得倒(dao)立，允許(xu)水平和垂直安裝。

4、電(dian)磁(ci)閥控(kong)制(zhi)線(xian)應正(zheng)確可(ke)靠連接，控(kong)制(zhi)線(xian)有極(ji)性。白色線(xian)為正(zheng)極(ji)黑色線(xian)為負極(ji)，不能(neng)接反。

5、管(guan)道(dao)吹掃時，建(jian)議將電磁閥隔離(li)，以(yi)免(mian)管(guan)內雜(za)物損壞閥門密封材(cai)料。

6、管道在進行試壓檢測密封性能前，應先使電(dian)磁閥處(chu)開閥狀態。

7、手動開閥時，宜在閥門(men)進出口壓(ya)力平衡時操作。

8、電動關閥時，切忌接錯電源，如接錯極性、加錯電壓或長時間通電等，以免損壞電磁線圈，導致燃氣泄漏時不能及時發(fa)現。