公开(公告)号：US20220018457A1

公开(公告)日：2022-01-20

申请号：US17191574

申请日：2021-03-03

申请人： TIANJIN UNIVERSITY ,  GEORGIA TECH SHENZHEN INSTITUTE, TIANJIN UNIVERSITY

发明人： Tengfei ZHANG ,  Tinglu ZHANG ,  Guanyi CHEN

IPC分类号： F16K13/10 ,  F16K31/50

摘要： The present application discloses a liquid seal method for on-off of gas pipeline and a device thereof, wherein a liquid-sealed U-shaped container being provided in the gas pipeline that requires to perform on-off control; a lifting mechanism using a leading screw controls the slider having a certain volume to immerse in or leave the liquid so as to raise or lower the liquid level. The U-shaped container has a structure with a wide top and a narrow bottom, the space of the U-shaped container is divided into two spaces with different sizes by a separating plate, and a liftable liquid-occupying device is located at the space having a larger volume; the upper and lower parts of the slider are tapered; and the driving device can be motor or hand wheel.