直(Zhi)动(Dong)式(Shi)电(Dian)磁(Ci)阀(Fa)工(Gong)作(Zuo)原(Yuan)理(Li):(?)通(Tong)电(Dian)时(Shi),(?)电(Dian)磁(Ci)线(Xian)圈(Quan)产(Chan)生(Sheng)电(Dian)磁(Ci)力(Li)把(Ba)关(Guan)闭(Bi)件(Jian)从(Cong)阀(Fa)座(Zuo)上(Shang)提(Ti)起(Qi),(?)阀(Fa)门(Men)打(Da)开(Kai);(?)断(Duan)电(Dian)时(Shi),(?)电(Dian)磁(Ci)力(Li)消(Xiao)失(Shi),(?)弹(Dan)簧(Huang)把(Ba)关(Guan)闭(Bi)件(Jian)压(Ya)在(Zai)阀(Fa)座(Zuo)上(Shang),(?)阀(Fa)门(Men)关(Guan)闭(Bi)。(?)
直(Zhi)动(Dong)式(Shi)电(Dian)磁(Ci)阀(Fa)特(Te)点(Dian):(?)在(Zai)真(Zhen)空(Kong)、(?)负(Fu)压(Ya)、(?)零(Ling)压(Ya)时(Shi)能(Neng)正(Zheng)常(Chang)工(Gong)作(Zuo),(?)但(Dan)通(Tong)径(Jing)一(Yi)般(Ban)不(Bu)超(Chao)过(Guo)25mm。(?)
分(Fen)步(Bu)直(Zhi)动(Dong)式(Shi)电(Dian)磁(Ci)阀(Fa)原(Yuan)理(Li):(?)它(Ta)是(Shi)一(Yi)种(Zhong)直(Zhi)动(Dong)和(He)先(Xian)导(Dao)式(Shi)相(Xiang)结(Jie)合(He)的(De)原(Yuan)理(Li),(?)当(Dang)入(Ru)口(Kou)与(Yu)出(Chu)口(Kou)没(Mei)有(You)压(Ya)差(Cha)时(Shi),(?)通(Tong)电(Dian)后(Hou),(?)电(Dian)磁(Ci)力(Li)直(Zhi)接(Jie)把(Ba)先(Xian)导(Dao)小(Xiao)阀(Fa)和(He)主(Zhu)阀(Fa)关(Guan)闭(Bi)件(Jian)依(Yi)次(Ci)向(Xiang)上(Shang)提(Ti)起(Qi),(?)阀(Fa)门(Men)打(Da)开(Kai)。(?)当(Dang)入(Ru)口(Kou)与(Yu)出(Chu)口(Kou)达(Da)到(Dao)启(Qi)动(Dong)压(Ya)差(Cha)时(Shi),(?)通(Tong)电(Dian)后(Hou),(?)电(Dian)磁(Ci)力(Li)先(Xian)导(Dao)小(Xiao)阀(Fa),(?)主(Zhu)阀(Fa)下(Xia)腔(Qiang)压(Ya)力(Li)上(Shang)升(Sheng),(?)上(Shang)腔(Qiang)压(Ya)力(Li)下(Xia)降(Jiang),(?)从(Cong)而(?)利(Li)用(Yong)压(Ya)差(Cha)把(Ba)主(Zhu)阀(Fa)向(Xiang)上(Shang)推(Tui)开(Kai);(?)断(Duan)电(Dian)时(Shi),(?)先(Xian)导(Dao)阀(Fa)利(Li)用(Yong)弹(Dan)簧(Huang)力(Li)或(Huo)介(Jie)质(Zhi)压(Ya)力(Li)推(Tui)动(Dong)关(Guan)闭(Bi)件(Jian),(?)向(Xiang)下(Xia)移(Yi)动(Dong),(?)使(Shi)阀(Fa)门(Men)关(Guan)闭(Bi)。(?)
分(Fen)步(Bu)直(Zhi)动(Dong)式(Shi)电(Dian)磁(Ci)阀(Fa)特(Te)点(Dian):(?)在(Zai)零(Ling)压(Ya)差(Cha)或(Huo)真(Zhen)空(Kong)、(?)高(Gao)压(Ya)时(Shi)亦(Yi)能(Neng)可(Ke)快(Kuai)速(Su)动(Dong)作(Zuo),(?)但(Dan)功(Gong)率(Lu)较(Jiao)大(Da),(?)要(Yao)求(Qiu)必(Bi)须(Xu)水(Shui)平(Ping)安(An)装(Zhuang)。(?)