PULSE-SAFETY DEVICE Russian patent published in 2006 - IPC F16K17/10 

FIELD: power engineering.

SUBSTANCE: pulse-safety device comprises safety valve provided with housing having inlet and outlet branch pipes. The inlet branch pipe is connected with main pipeline of a power plant. The outlet branch pipe is in communication with the atmosphere. The housing receives cut-off member and servodrive. The cut-off member has seat and plate. The servodrive has chamber with piston. The spring-loaded rod of the piston is connected with the plate of the cut-off member. The pulse valve has inlet and outlet branch pipes. The inlet branch pipe is connected with the main pipeline of the power plant. The outlet branch pipe is connected with the above-piston space of the chamber of servodrive. The device is additionally provided with control valve whose inlet is connected with the above-piston space of the servodrive chamber. The outlet of the control valve is connected with the under-piston space of the chamber.

EFFECT: enhanced reliability.

1 dwg