The large flux zero energy consumption open and close solenoid valve provided by the invention consists of two normal temperature low pressure solenoid valves and a new controller. Pistons are arranged at the upper and lower ends of the controller. There are two upper and lower seats between the upper and lower pistons and valve discs covered on the valve seat. Both pistons have push rods. A circular plate is arranged above the upper seat and below the lower seat, and two ends of the push rod are arranged. Fixed on two circular plates, another push rod is fastened on the lower circular plate. The free end of the push rod can top the disc on the lower valve seat. When assembled, the lower disc is open and the upper disc is closed. When the upper solenoid valve is electrified, the compressed air is introduced into the upper piston cavity to push the piston and its push rod and the upper and lower discs down. The upper disc opens the upper disc and the lower disc pushes down. The lower disc is allowed to move down and close. If the lower solenoid valve is electrified afterwards, the lower disc is opened and closed. The upper solenoid valve should not be energized for one second, and it will be established when it is normally open and closed. The controlled fluid can flow through the opening of the normally open valve for a long time, or stop shortly after the flow or flow at very low speed. The valve disc is usually open to maintain the source pressure of the fluid for the fluid drive chamber, or to maintain the slight leakage of the drive chamber. Compared with some existing open and closed solenoid valves, it has many advantages: less power consumption, large flux, no leakage, long service life, no burning of electromagnetic coils and replacement of vulnerable parts.
【技术实现步骤摘要】
大通量零能耗常开常闭电磁阀
本专利技术涉及电磁,特别是大通量零能耗常开常闭电磁阀电磁阀在工业上得到了广泛的应用,它可以瞬时开启来释放压力介质,防止系统超压,它也可以将来自某种压力容器的流体引入到活塞缸里去推动活塞做功,使活塞推拉杆移动,齿条移动,让大尺寸球阀或大尺寸闸阀等的开启和关闭,电磁阀是控制流体流动的重要设备。
技术介绍
目前使用在核电站为大尺寸蒸汽隔离阀球阀的控制单元大多是美国制造的常开和常闭电磁阀,这些控制单元,因长期通电保持常开和常闭,不能长期工作,不能与被控阀同寿,需定期更换线圈和一些易损件。如美国制造的使用在***核电站安装在MSIV和MFIV上的常开和常闭电磁阀需定期更换电磁线圈,因是有泄漏电磁阀,需定期更换某些抗泄漏件和耐磨件。因长期通电,温度升高损坏漆包线上的漆使线圈短路,烧毁电磁线圈,尽最大可能减少电功率,以减少线圈的热量释放,减少流体的通流截面积,减少电功率。以安装在MSIV和MFIV上的常开和常闭电磁阀,孔径仅为3.5毫米,并将通孔设置在电磁拉杆定向孔的径向孔壁上,其拉杆制成粗细交替段,小直径段的直径为3.3毫米,通电后拉杆轴向移动,使拉杆小直段对准径向通入拉杆定向孔的两个流体进出孔,使进入定向孔的流体转向流出孔流至驱动腔内。因为纵向移动,相对移动件间滑动间隙的存在是必不可少的,因此滑动件拉杆的上下端存在空间,仅管进出孔上下部的拉杆上设置有O型密封橡胶圈,因滑动磨损和滑动必不可少的间隙,流体不可避免地要渗漏到因拉杆上移后下部留下的空间中,空间有流体后,如不清除必然会阻止拉杆的再次下移,这样不得对下空间开出第三个径向孔,将泄漏到该 ...
【技术保护点】
1.一种大通量零能耗常开和常闭电磁阀,它由两个常温低压低功率的电磁阀和一个新型控制器组合而成,控制器的上下两端的缸体内设置有活塞,常温低压电磁阀的入口与压缩空气罐的出气管相连接,二阀的出口分别与上下缸体内的上活塞的上腔和下活塞的下腔相连通,二者均与活塞缸壁相焊接,用于密封的两个波纹管,其一的上法兰与上活塞缸壁相焊接,下端法兰与上活塞相固接的活塞推杆的下端相焊接,并与定位圆盘熔焊在一起;其二的下法兰与下活塞缸壁相焊接,上端法兰与下活塞相固接的活塞推杆的上端相焊,并与其定位圆盘熔焊在一起;上定位圆盘的下面设置有圆板,下定位圆盘的上面设置有下圆板,推拉杆的两端,分别与上下两个圆板相固接,在上下两圆板之间,即以螺纹形式与上活塞缸体相固接且实施密封焊的上阀体中紧固着上阀座,以螺纹的形式与下活塞缸体相固接且实施密封焊的下阀体中紧固着下阀座,均与阀体实施密封焊上阀座的密封面朝下,阀瓣的定位推杆,自下而上插入上阀座的中心孔中,并伸出孔外,与上圆板接触,阀瓣在其下的设置在阀瓣与固定在上阀体上的弹簧座之间的弹簧的推使下而闭合,上圆板与伸出孔外的阀瓣定位推杆端相接触,并传递给阀瓣推杆端来自下连接外筒上的弹簧 ...
【技术特征摘要】
1.一种大通量零能耗常开和常闭电磁阀,它由两个常温低压低功率的电磁阀和一个新型控制器组合而成,控制器的上下两端的缸体内设置有活塞,常温低压电磁阀的入口与压缩空气罐的出气管相连接,二阀的出口分别与上下缸体内的上活塞的上腔和下活塞的下腔相连通,二者均与活塞缸壁相焊接,用于密封的两个波纹管,其一的上法兰与上活塞缸壁相焊接,下端法兰与上活塞相固接的活塞推杆的下端相焊接,并与定位圆盘熔焊在一起;其二的下法兰与下活塞缸壁相焊接,上端法兰与下活塞相固接的活塞推杆的上端相焊,并与其定位圆盘熔焊在一起;上定位圆盘的下面设置有圆板,下定位圆盘的上面设置有下圆板,推拉杆的两端,分别与上下两个圆板相固接,在上下两圆板之间,即以螺纹形式与上活塞缸体相固接且实施密封焊的上阀体中紧固着上阀座,以螺纹的形式与下活塞缸体相固接且实施密封焊的下阀体中紧固着下阀座,均与阀体实施密封焊上阀座的密封面朝下,阀瓣的定位推杆,自下而上插入上阀座的中心孔中,并伸出孔外,与上圆板接触,阀瓣在其下的设置在阀瓣与固定在上阀体上的弹簧座之间的弹簧的推使下而闭合,上圆板与伸出孔外的阀瓣定位推杆端相接触,并传递给阀瓣推杆端来自下连接外筒上的弹簧...
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