气压传动系统用失压保护阀

Decompression protection valve used for pneumatic transmission system.

失压保护阀主要功用是当气压传动系统停气后又恢复供气时 ,防止发生人身伤害和设备损坏事故。将气压传动系统的是门逻辑元件略加改造 ,即将是门元件的通道A封死 ,再开一斜孔 ,使上腔室与十字通道连通就成为失压保护阀。当气压传动系统处于通气状态时 ,只要输入口有压缩空气 ,输出口就一直有气输出 ;系统停气后又恢复供气 ,输出口仍无气输出 ,具有失压保护功能。这种阀可用于作逻辑元件、失压保护阀、家用燃气炉灶的安全阀。

To avoid personal injury and equipment damage when a pneumatic transmission system resumes supplying air,a decompression protection valve is developed.The structure,operating principle and function of the valve are described,and the application of the valve is introduced.