LOCKING AND STARTING DEVICE OF GAS FIRE EXTINGUISHING SYSTEM Russian patent published in 2025 - IPC A62C37/08 A62C35/02 A62C31/02 

FIELD: fire extinguishing devices.

SUBSTANCE: present invention relates to the field of fire extinguishing devices, in particular to a shut-off device for a gas fire extinguishing system in enclosed spaces by means of a gaseous extinguishing agent under high pressure. The shut-off and starting device of the gas fire extinguishing system contains a cylindrical body with an internal axial channel connecting the upper incentive chamber with the lower drainage and working chambers, a movable piston mounted in the axial channel, a pressure gauge with a shut-off valve mounted in the third hole, and also contains an electromechanical starter with a bursting diaphragm mounted in the first hole in the upper part of the housing, which is connected by a passage to a drainage chamber communicating with the atmosphere, an autonomous starter with a poppet valve mounted in the second hole of the upper part of the housing, which is supported by a thermosensitive bulb, as well as a trigger alarm mounted in a blind hole of the upper part of the housing, while the movable piston has a channel and a calibrated hole connected to through this channel, made with the possibility of holding the piston in its initial position due to the equality of pressures in the motive and working chambers, while tightness the incentive chamber is provided by the presence of a destructible bursting diaphragm of an electromechanical starter and an installed self-contained starter, the poppet valve of which has no mechanical connection with a movable piston, while the device also contains a charging valve mounted in the lower part of the housing and connected to the working chamber, a distribution ring with perforation installed between the upper and lower parts of the housing.

EFFECT: increased reliability and simplify the design of this device.

3 cl, 5 dwg