FIELD: firefighting equipment.
SUBSTANCE: invention can be used in industrial and civil facilities, including those with increased fire hazard for localizing fires, as well as for effective fire extinguishing in rooms using automatic fire extinguishing systems. To extinguish a fire in the protected volume, a gas fire extinguishing device is placed inside the protected volume. The device comprises a container filled with a gas fire extinguishing agent, a lock nut connected to the outlet of the container and containing a locking element that holds the fire extinguishing agent inside the container under pressure, and a lock-start device (LSD). LSD consists of a housing for a pusher, on the one end connected to the locking nut of the gas fire extinguishing device, and on the other end connected to the sprayer. The housing for the pusher is a hollow rod with a mounting hollow base. In the lower part of the rod and partially in the mounting hollow base, coaxial grooves for the mounting pin are made. A pusher spring-loaded by a spring is fixed inside the rod, containing a mounting base and an elongated cylindrical tip truncated from the free end, on two surfaces of which flats are made. The mounting base has a through hole coaxial with the grooves, through which the pusher is fixed in a spring-loaded position through the grooves by means of a mounting pin. The atomizer is a hollow cylindrical cap, strung on the housing for the pusher and fixed through the holes in its lower part by means of the pin through the grooves and hole. In the upper part of the atomizer there is a cavity for placing a lock. In the upper part of the atomizer, spray holes are made on the sides. The lock forms a stop for the rod and prevents the spring from expanding. The destruction of the lock leads to the decompression of the spring. The decompression of the spring leads to the movement of the pin along the grooves in the direction of the locking nut. The pusher is placed in such a way that when the pin is moved, it moves in the direction of the locking nut, pierces the locking element of the locking nut and releases the fire extinguishing agent. The destruction of the lock is carried out when a fire is detected in the protected volume.
EFFECT: exclusion of the possibility of clogging the passage channel of the needle with parts of the membrane and elimination of the possibility of narrowing the passage channel of the needle due to icing; and, as a result, increasing the reliability of the shut-off and starting device for the fire extinguishing device; and, as a result, increasing the reliability of the fire extinguishing device as a whole; and also, as a consequence, the exclusion of an increase in the exit time of the gas fire extinguishing agent.
2 cl, 2 dwg
